Merge branch 'master' into blender2.8

18 files changed, 1642 insertions, 1642 deletions

diff --git a/source/blender/editors/interface/interface.c b/source/blender/editors/interface/interface.c
index be0c84f7d80..e4b298fecf0 100644
--- a/source/blender/editors/interface/interface.c
+++ b/source/blender/editors/interface/interface.c
@@ -93,7 +93,7 @@
 
 /**
  * a full doc with API notes can be found in 'blender/doc/guides/interface_API.txt'
- * 
+ *
  * `uiBlahBlah()`	external function.
  * `ui_blah_blah()`	internal function.
  */
@@ -318,7 +318,7 @@ void ui_block_bounds_calc(uiBlock *block)
 {
 	uiBut *bt;
 	int xof;
-	
+
 	if (BLI_listbase_is_empty(&block->buttons)) {
 		if (block->panel) {
 			block->rect.xmin = 0.0; block->rect.xmax = block->panel->sizex;
@@ -326,13 +326,13 @@ void ui_block_bounds_calc(uiBlock *block)
 		}
 	}
 	else {
-	
+
 		BLI_rctf_init_minmax(&block->rect);
 
 		for (bt = block->buttons.first; bt; bt = bt->next) {
 			BLI_rctf_union(&block->rect, &bt->rect);
 		}
-		
+
 		block->rect.xmin -= block->bounds;
 		block->rect.ymin -= block->bounds;
 		block->rect.xmax += block->bounds;
@@ -341,7 +341,7 @@ void ui_block_bounds_calc(uiBlock *block)
 
 	block->rect.xmax = block->rect.xmin + max_ff(BLI_rctf_size_x(&block->rect), block->minbounds);
 
-	/* hardcoded exception... but that one is annoying with larger safety */ 
+	/* hardcoded exception... but that one is annoying with larger safety */
 	bt = block->buttons.first;
 	if (bt && STREQLEN(bt->str, "ERROR", 5)) xof = 10;
 	else xof = 40;
@@ -357,7 +357,7 @@ static void ui_block_bounds_calc_centered(wmWindow *window, uiBlock *block)
 	int xmax, ymax;
 	int startx, starty;
 	int width, height;
-	
+
 	/* note: this is used for the splash where window bounds event has not been
 	 * updated by ghost, get the window bounds from ghost directly */
 
@@ -365,18 +365,18 @@ static void ui_block_bounds_calc_centered(wmWindow *window, uiBlock *block)
 	ymax = WM_window_pixels_y(window);
 
 	ui_block_bounds_calc(block);
-	
+
 	width  = BLI_rctf_size_x(&block->rect);
 	height = BLI_rctf_size_y(&block->rect);
-	
+
 	startx = (xmax * 0.5f) - (width * 0.5f);
 	starty = (ymax * 0.5f) - (height * 0.5f);
-	
+
 	UI_block_translate(block, startx - block->rect.xmin, starty - block->rect.ymin);
-	
+
 	/* now recompute bounds and safety */
 	ui_block_bounds_calc(block);
-	
+
 }
 
 static void ui_block_bounds_calc_centered_pie(uiBlock *block)
@@ -406,7 +406,7 @@ static void ui_block_bounds_calc_popup(
 
 	/* compute mouse position with user defined offset */
 	ui_block_bounds_calc(block);
-	
+
 	xmax = WM_window_pixels_x(window);
 	ymax = WM_window_pixels_y(window);
 
@@ -464,7 +464,7 @@ void UI_block_bounds_set_normal(uiBlock *block, int addval)
 {
 	if (block == NULL)
 		return;
-	
+
 	block->bounds = addval;
 	block->bounds_type = UI_BLOCK_BOUNDS;
 }
@@ -723,7 +723,7 @@ bool UI_but_active_only(const bContext *C, ARegion *ar, uiBlock *block, uiBut *b
 	uiBlock *oldblock;
 	uiBut *oldbut;
 	bool activate = false, found = false, isactive = false;
-	
+
 	oldblock = block->oldblock;
 	if (!oldblock) {
 		activate = true;
@@ -746,7 +746,7 @@ bool UI_but_active_only(const bContext *C, ARegion *ar, uiBlock *block, uiBut *b
 		ui_but_free(C, but);
 		return false;
 	}
-	
+
 	return true;
 }
 
@@ -950,27 +950,27 @@ static bool ui_but_event_property_operator_string(
 		"WM_OT_context_cycle_array",
 		"WM_OT_context_menu_enum",
 		NULL
-	};		
+	};
 	const size_t num_ops = sizeof(ctx_toggle_opnames) / sizeof(const char *);
-	
+
 	bool found = false;
-	
+
 	/* this version is only for finding hotkeys for properties (which get set via context using operators) */
 	if (but->rnaprop) {
-		/* to avoid massive slowdowns on property panels, for now, we only check the 
+		/* to avoid massive slowdowns on property panels, for now, we only check the
 		 * hotkeys for Editor / Scene settings...
 		 *
 		 * TODO: userpref settings?
 		 */
 		// TODO: value (for enum stuff)?
 		char *data_path = NULL;
-		
+
 		if (but->rnapoin.id.data) {
 			ID *id = but->rnapoin.id.data;
-			
+
 			if (GS(id->name) == ID_SCR) {
-				/* screen/editor property 
-				 * NOTE: in most cases, there is actually no info for backwards tracing 
+				/* screen/editor property
+				 * NOTE: in most cases, there is actually no info for backwards tracing
 				 * how to get back to ID from the editor data we may be dealing with
 				 */
 				if (RNA_struct_is_a(but->rnapoin.type, &RNA_Space)) {
@@ -991,7 +991,7 @@ static bool ui_but_event_property_operator_string(
 			}
 			else if (GS(id->name) == ID_SCE) {
 				if (RNA_struct_is_a(but->rnapoin.type, &RNA_ToolSettings)) {
-					/* toolsettings property 
+					/* toolsettings property
 					 * NOTE: toolsettings is usually accessed directly (i.e. not through scene)
 					 */
 					data_path = RNA_path_from_ID_to_property(&but->rnapoin, but->rnaprop);
@@ -999,7 +999,7 @@ static bool ui_but_event_property_operator_string(
 				else {
 					/* scene property */
 					char *path = RNA_path_from_ID_to_property(&but->rnapoin, but->rnaprop);
-					
+
 					if (path) {
 						data_path = BLI_sprintfN("scene.%s", path);
 						MEM_freeN(path);
@@ -1015,23 +1015,23 @@ static bool ui_but_event_property_operator_string(
 			else {
 				//puts("other id");
 			}
-			
+
 			//printf("prop shortcut: '%s' (%s)\n", RNA_property_identifier(but->rnaprop), data_path);
 		}
-		
+
 		/* we have a datapath! */
 		if (data_path) {
 			size_t i;
-			
+
 			/* create a property to host the "datapath" property we're sending to the operators */
 			IDProperty *prop_path;
 			IDProperty *prop_path_value;
-			
+
 			IDPropertyTemplate val = {0};
 			prop_path = IDP_New(IDP_GROUP, &val, __func__);
 			prop_path_value = IDP_NewString(data_path, "data_path", strlen(data_path) + 1);
 			IDP_AddToGroup(prop_path, prop_path_value);
-			
+
 			/* check each until one works... */
 			for (i = 0; (i < num_ops) && (ctx_toggle_opnames[i]); i++) {
 				if (WM_key_event_operator_string(
@@ -1042,14 +1042,14 @@ static bool ui_but_event_property_operator_string(
 					break;
 				}
 			}
-			
+
 			/* cleanup */
 			IDP_FreeProperty(prop_path);
 			MEM_freeN(prop_path);
 			MEM_freeN(data_path);
 		}
 	}
-	
+
 	return found;
 }
 
@@ -1225,7 +1225,7 @@ void UI_block_end_ex(const bContext *C, uiBlock *block, const int xy[2], int r_x
 	if (block->flag & (UI_BLOCK_LOOP | UI_BLOCK_SHOW_SHORTCUT_ALWAYS)) {
 		ui_menu_block_set_keymaps(C, block);
 	}
-	
+
 	/* after keymaps! */
 	switch (block->bounds_type) {
 		case UI_BLOCK_BOUNDS_NONE:
@@ -1273,12 +1273,12 @@ void ui_fontscale(short *points, float aspect)
 {
 	if (aspect < 0.9f || aspect > 1.1f) {
 		float pointsf = *points;
-		
+
 		/* for some reason scaling fonts goes too fast compared to widget size */
 		/* XXX not true anymore? (ton) */
 		//aspect = sqrt(aspect);
 		pointsf /= aspect;
-		
+
 		if (aspect > 1.0f)
 			*points = ceilf(pointsf);
 		else
@@ -1303,7 +1303,7 @@ void UI_block_draw(const bContext *C, uiBlock *block)
 	ARegion *ar;
 	uiBut *but;
 	rcti rect;
-	
+
 	/* get menu region or area region */
 	ar = CTX_wm_menu(C);
 	if (!ar)
@@ -1314,23 +1314,23 @@ void UI_block_draw(const bContext *C, uiBlock *block)
 
 	/* we set this only once */
 	glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
-	
+
 	/* scale fonts */
 	ui_fontscale(&style.paneltitle.points, block->aspect);
 	ui_fontscale(&style.grouplabel.points, block->aspect);
 	ui_fontscale(&style.widgetlabel.points, block->aspect);
 	ui_fontscale(&style.widget.points, block->aspect);
-	
+
 	/* scale block min/max to rect */
 	ui_but_to_pixelrect(&rect, ar, block, NULL);
-	
+
 	/* pixel space for AA widgets */
 	gpuPushProjectionMatrix();
 	gpuPushMatrix();
 	gpuLoadIdentity();
 
 	wmOrtho2_region_pixelspace(ar);
-	
+
 	/* back */
 	if (block->flag & UI_BLOCK_RADIAL)
 		ui_draw_pie_center(block);
@@ -1349,7 +1349,7 @@ void UI_block_draw(const bContext *C, uiBlock *block)
 	for (but = block->buttons.first; but; but = but->next) {
 		if (!(but->flag & (UI_HIDDEN | UI_SCROLLED))) {
 			ui_but_to_pixelrect(&rect, ar, block, but);
-		
+
 			/* XXX: figure out why invalid coordinates happen when closing render window */
 			/* and material preview is redrawn in main window (temp fix for bug #23848) */
 			if (rect.xmin < rect.xmax && rect.ymin < rect.ymax)
@@ -1360,7 +1360,7 @@ void UI_block_draw(const bContext *C, uiBlock *block)
 	UI_widgetbase_draw_cache_end();
 	UI_icon_draw_cache_end();
 	BLF_batch_draw_end();
-	
+
 	/* restore matrix */
 	gpuPopProjectionMatrix();
 	gpuPopMatrix();
@@ -1680,10 +1680,10 @@ bool ui_but_is_float(const uiBut *but)
 {
 	if (but->pointype == UI_BUT_POIN_FLOAT && but->poin)
 		return true;
-	
+
 	if (but->rnaprop && RNA_property_type(but->rnaprop) == PROP_FLOAT)
 		return true;
-	
+
 	return false;
 }
 
@@ -1714,7 +1714,7 @@ bool ui_but_is_unit(const uiBut *but)
 	if (ui_but_is_unit_radians_ex(unit, unit_type))
 		return false;
 #endif
-	
+
 	/* for now disable time unit conversion */
 	if (unit_type == PROP_UNIT_TIME)
 		return false;
@@ -1898,7 +1898,7 @@ void ui_but_value_set(uiBut *but, double value)
 			if (fval >= -0.00001f && fval <= 0.00001f) fval = 0.0f;  /* prevent negative zero */
 			value = fval;
 		}
-		
+
 		/* then set value with possible edit override */
 		if (but->editval)
 			value = *but->editval = value;
@@ -2032,11 +2032,11 @@ void ui_but_convert_to_unit_alt_name(uiBut *but, char *str, size_t maxlen)
 		UnitSettings *unit = but->block->unit;
 		int unit_type = UI_but_unit_type_get(but);
 		char *orig_str;
-		
+
 		orig_str = BLI_strdup(str);
-		
+
 		bUnit_ToUnitAltName(str, maxlen, orig_str, unit->system, RNA_SUBTYPE_UNIT_VALUE(unit_type));
-		
+
 		MEM_freeN(orig_str);
 	}
 }
@@ -2692,7 +2692,7 @@ void UI_block_free(const bContext *C, uiBlock *block)
 
 	BLI_freelistN(&block->saferct);
 	BLI_freelistN(&block->color_pickers.list);
-	
+
 	MEM_freeN(block);
 }
 
@@ -2721,7 +2721,7 @@ void UI_blocklist_draw(const bContext *C, const ListBase *lb)
 void UI_blocklist_free(const bContext *C, ListBase *lb)
 {
 	uiBlock *block;
-	
+
 	while ((block = BLI_pophead(lb))) {
 		UI_block_free(C, block);
 	}
@@ -2733,7 +2733,7 @@ void UI_blocklist_free_inactive(const bContext *C, ListBase *lb)
 
 	for (block = lb->first; block; block = nextblock) {
 		nextblock = block->next;
-	
+
 		if (!block->handle) {
 			if (!block->active) {
 				BLI_remlink(lb, block);
@@ -2834,9 +2834,9 @@ void ui_but_update_ex(uiBut *but, const bool validate)
 	/* if something changed in the button */
 	double value = UI_BUT_VALUE_UNSET;
 //	float okwidth; // UNUSED
-	
+
 	ui_but_update_select_flag(but, &value);
-	
+
 	/* only update soft range while not editing */
 	if (!(but->editval || but->editstr || but->editvec)) {
 		if ((but->rnaprop != NULL) ||
@@ -2865,7 +2865,7 @@ void ui_but_update_ex(uiBut *but, const bool validate)
 				           but->hardmin <= but->hardmax);
 			}
 			break;
-			
+
 		case UI_BTYPE_ICON_TOGGLE:
 		case UI_BTYPE_ICON_TOGGLE_N:
 			if (!but->rnaprop || (RNA_property_flag(but->rnaprop) & PROP_ICONS_CONSECUTIVE)) {
@@ -2873,16 +2873,16 @@ void ui_but_update_ex(uiBut *but, const bool validate)
 				else but->iconadd = 0;
 			}
 			break;
-			
+
 			/* quiet warnings for unhandled types */
 		default:
 			break;
 	}
-	
-	
+
+
 	/* safety is 4 to enable small number buttons (like 'users') */
 	// okwidth = -4 + (BLI_rcti_size_x(&but->rect)); // UNUSED
-	
+
 	/* name: */
 	switch (but->type) {
 
@@ -2970,7 +2970,7 @@ void ui_but_update_ex(uiBut *but, const bool validate)
 			else {
 				BLI_strncpy(but->drawstr, but->str, UI_MAX_DRAW_STR);
 			}
-		
+
 			break;
 
 		case UI_BTYPE_TEXT:
@@ -2983,7 +2983,7 @@ void ui_but_update_ex(uiBut *but, const bool validate)
 				BLI_snprintf(but->drawstr, sizeof(but->drawstr), "%s%s", but->str, str);
 			}
 			break;
-	
+
 		case UI_BTYPE_KEY_EVENT:
 		{
 			const char *str;
@@ -3030,13 +3030,13 @@ void ui_but_update_ex(uiBut *but, const bool validate)
 		default:
 			BLI_strncpy(but->drawstr, but->str, UI_MAX_DRAW_STR);
 			break;
-		
+
 	}
 
 	/* if we are doing text editing, this will override the drawstr */
 	if (but->editstr)
 		but->drawstr[0] = '\0';
-	
+
 	/* text clipping moved to widget drawing code itself */
 }
 
@@ -3129,7 +3129,7 @@ static uiBut *ui_def_but(
 	int slen;
 
 	BLI_assert(width >= 0 && height >= 0);
-	
+
 	/* we could do some more error checks here */
 	if ((type & BUTTYPE) == UI_BTYPE_LABEL) {
 		BLI_assert((poin != NULL || min != 0.0f || max != 0.0f || (a1 == 0.0f && a2 != 0.0f) || (a1 != 0.0f && a1 != 1.0f)) == false);
@@ -3184,7 +3184,7 @@ static uiBut *ui_def_but(
 	but->funcN = block->funcN;
 	if (block->func_argN)
 		but->func_argN = MEM_dupallocN(block->func_argN);
-	
+
 	but->pos = -1;   /* cursor invisible */
 
 	if (ELEM(but->type, UI_BTYPE_NUM, UI_BTYPE_NUM_SLIDER)) {    /* add a space to name */
@@ -3237,7 +3237,7 @@ static uiBut *ui_def_but(
 	}
 
 	BLI_addtail(&block->buttons, but);
-	
+
 	if (block->curlayout)
 		ui_layout_add_but(block->curlayout, but);
 
@@ -3526,7 +3526,7 @@ static uiBut *ui_def_but_rna(
 	if (icon) {
 		ui_def_but_icon(but, icon, UI_HAS_ICON);
 	}
-	
+
 	if ((type == UI_BTYPE_MENU) && (but->dt == UI_EMBOSS_PULLDOWN)) {
 		but->flag |= UI_BUT_ICON_SUBMENU;
 	}
@@ -3603,7 +3603,7 @@ uiBut *uiDefBut(uiBlock *block, int type, int retval, const char *str, int x, in
 	uiBut *but = ui_def_but(block, type, retval, str, x, y, width, height, poin, min, max, a1, a2, tip);
 
 	ui_but_update(but);
-	
+
 	return but;
 }
 
@@ -3645,7 +3645,7 @@ struct AutoComplete {
 AutoComplete *UI_autocomplete_begin(const char *startname, size_t maxlen)
 {
 	AutoComplete *autocpl;
-	
+
 	autocpl = MEM_callocN(sizeof(AutoComplete), "AutoComplete");
 	autocpl->maxlen = maxlen;
 	autocpl->matches = 0;
@@ -3686,7 +3686,7 @@ void UI_autocomplete_update_name(AutoComplete *autocpl, const char *name)
 }
 
 int UI_autocomplete_end(AutoComplete *autocpl, char *autoname)
-{	
+{
 	int match = AUTOCOMPLETE_NO_MATCH;
 	if (autocpl->truncate[0]) {
 		if (autocpl->matches == 1) {
@@ -3944,7 +3944,7 @@ uiBut *uiDefIconTextButO_ptr(uiBlock *block, int type, wmOperatorType *ot, int o
 uiBut *uiDefIconTextButO(uiBlock *block, int type, const char *opname, int opcontext, int icon, const char *str, int x, int y, short width, short height, const char *tip)
 {
 	wmOperatorType *ot = WM_operatortype_find(opname, 0);
-	if (str && str[0] == '\0') 
+	if (str && str[0] == '\0')
 		return uiDefIconButO_ptr(block, type, ot, opcontext, icon, x, y, width, height, tip);
 	return uiDefIconTextButO_ptr(block, type, ot, opcontext, icon, str, x, y, width, height, tip);
 }
@@ -3957,11 +3957,11 @@ int UI_blocklist_min_y_get(ListBase *lb)
 {
 	uiBlock *block;
 	int min = 0;
-	
+
 	for (block = lb->first; block; block = block->next)
 		if (block == lb->first || block->rect.ymin < min)
 			min = block->rect.ymin;
-			
+
 	return min;
 }
 
@@ -3980,7 +3980,7 @@ void UI_block_order_flip(uiBlock *block)
 		return;
 	else if (block->flag & UI_BLOCK_NO_FLIP)
 		return;
-	
+
 	for (but = block->buttons.first; but; but = but->next) {
 		if (but->drawflag & UI_BUT_ALIGN) return;
 		if (but->rect.ymin < miny) miny = but->rect.ymin;
@@ -4129,8 +4129,8 @@ void UI_but_unit_type_set(uiBut *but, const int unit_type)
 int UI_but_unit_type_get(const uiBut *but)
 {
 	int ownUnit = (int)but->unit_type;
-	
-	/* own unit define always takes precedence over RNA provided, allowing for overriding 
+
+	/* own unit define always takes precedence over RNA provided, allowing for overriding
 	 * default value provided in RNA in a few special cases (i.e. Active Keyframe in Graph Edit)
 	 */
 	/* XXX: this doesn't allow clearing unit completely, though the same could be said for icons */
@@ -4292,7 +4292,7 @@ uiBut *uiDefIconMenuBut(uiBlock *block, uiMenuCreateFunc func, void *arg, int ic
 uiBut *uiDefIconTextBlockBut(uiBlock *block, uiBlockCreateFunc func, void *arg, int icon, const char *str, int x, int y, short width, short height, const char *tip)
 {
 	uiBut *but = ui_def_but(block, UI_BTYPE_BLOCK, 0, str, x, y, width, height, arg, 0.0, 0.0, 0.0, 0.0, tip);
-	
+
 	/* XXX temp, old menu calls pass on icon arrow, which is now UI_BUT_ICON_SUBMENU flag */
 	if (icon != ICON_RIGHTARROW_THIN) {
 		ui_def_but_icon(but, icon, 0);
@@ -4303,7 +4303,7 @@ uiBut *uiDefIconTextBlockBut(uiBlock *block, uiBlockCreateFunc func, void *arg,
 
 	but->block_create_func = func;
 	ui_but_update(but);
-	
+
 	return but;
 }
 
@@ -4311,14 +4311,14 @@ uiBut *uiDefIconTextBlockBut(uiBlock *block, uiBlockCreateFunc func, void *arg,
 uiBut *uiDefIconBlockBut(uiBlock *block, uiBlockCreateFunc func, void *arg, int retval, int icon, int x, int y, short width, short height, const char *tip)
 {
 	uiBut *but = ui_def_but(block, UI_BTYPE_BLOCK, retval, "", x, y, width, height, arg, 0.0, 0.0, 0.0, 0.0, tip);
-	
+
 	ui_def_but_icon(but, icon, UI_HAS_ICON);
 
 	but->drawflag |= UI_BUT_ICON_LEFT;
-	
+
 	but->block_create_func = func;
 	ui_but_update(but);
-	
+
 	return but;
 }
 
@@ -4345,13 +4345,13 @@ uiBut *uiDefHotKeyevtButS(uiBlock *block, int retval, const char *str, int x, in
 uiBut *uiDefSearchBut(uiBlock *block, void *arg, int retval, int icon, int maxlen, int x, int y, short width, short height, float a1, float a2, const char *tip)
 {
 	uiBut *but = ui_def_but(block, UI_BTYPE_SEARCH_MENU, retval, "", x, y, width, height, arg, 0.0, maxlen, a1, a2, tip);
-	
+
 	ui_def_but_icon(but, icon, UI_HAS_ICON);
 
 	but->drawflag |= UI_BUT_ICON_LEFT | UI_BUT_TEXT_LEFT;
-	
+
 	ui_but_update(but);
-	
+
 	return but;
 }
 
@@ -4375,7 +4375,7 @@ void UI_but_func_search_set(
 	but->search_create_func = search_create_func;
 	but->search_func = search_func;
 	but->search_arg = arg;
-	
+
 	if (bfunc) {
 #ifdef DEBUG
 		if (but->func) {
@@ -4385,7 +4385,7 @@ void UI_but_func_search_set(
 #endif
 		UI_but_func_set(but, bfunc, arg, active);
 	}
-	
+
 	/* search buttons show red-alert if item doesn't exist, not for menus */
 	if (0 == (but->block->flag & UI_BLOCK_LOOP)) {
 		/* skip empty buttons, not all buttons need input, we only show invalid */
@@ -4483,14 +4483,14 @@ uiBut *uiDefSearchButO_ptr(
 void UI_but_focus_on_enter_event(wmWindow *win, uiBut *but)
 {
 	wmEvent event;
-	
+
 	wm_event_init_from_window(win, &event);
 
 	event.type = EVT_BUT_OPEN;
 	event.val = KM_PRESS;
 	event.customdata = but;
 	event.customdatafree = false;
-	
+
 	wm_event_add(win, &event);
 }
 
@@ -4614,7 +4614,7 @@ void UI_but_string_info_get(bContext *C, uiBut *but, ...)
 			PointerRNA *ptr = NULL;
 			PropertyRNA *prop = NULL;
 			int value = 0;
-			
+
 			/* get the enum property... */
 			if (but->rnaprop && RNA_property_type(but->rnaprop) == PROP_ENUM) {
 				/* enum property */
@@ -4625,8 +4625,8 @@ void UI_but_string_info_get(bContext *C, uiBut *but, ...)
 			else if (but->optype) {
 				PointerRNA *opptr = UI_but_operator_ptr_get(but);
 				wmOperatorType *ot = but->optype;
-				
-				/* if the default property of the operator is enum and it is set, 
+
+				/* if the default property of the operator is enum and it is set,
 				 * fetch the tooltip of the selected value so that "Snap" and "Mirror"
 				 * operator menus in the Anim Editors will show tooltips for the different
 				 * operations instead of the meaningless generic operator tooltip
@@ -4639,7 +4639,7 @@ void UI_but_string_info_get(bContext *C, uiBut *but, ...)
 					}
 				}
 			}
-			
+
 			/* get strings from matching enum item */
 			if (ptr && prop) {
 				if (!item) {
diff --git a/source/blender/editors/interface/interface_align.c b/source/blender/editors/interface/interface_align.c
index 1fc38a27303..619dce1b9d9 100644
--- a/source/blender/editors/interface/interface_align.c
+++ b/source/blender/editors/interface/interface_align.c
@@ -524,7 +524,7 @@ static void ui_block_align_calc_but(uiBut *first, short nr)
 {
 	uiBut *prev, *but = NULL, *next;
 	int flag = 0, cols = 0, rows = 0;
-	
+
 	/* auto align */
 
 	for (but = first; but && but->alignnr == nr; but = but->next) {
@@ -535,7 +535,7 @@ static void ui_block_align_calc_but(uiBut *first, short nr)
 	}
 
 	/* rows == 0: 1 row, cols == 0: 1 column */
-	
+
 	/* note;  how it uses 'flag' in loop below (either set it, or OR it) is confusing */
 	for (but = first, prev = NULL; but && but->alignnr == nr; prev = but, but = but->next) {
 		next = but->next;
@@ -544,13 +544,13 @@ static void ui_block_align_calc_but(uiBut *first, short nr)
 
 		/* clear old flag */
 		but->drawflag &= ~UI_BUT_ALIGN;
-			
+
 		if (flag == 0) {  /* first case */
 			if (next) {
 				if (buts_are_horiz(but, next)) {
 					if (rows == 0)
 						flag = UI_BUT_ALIGN_RIGHT;
-					else 
+					else
 						flag = UI_BUT_ALIGN_DOWN | UI_BUT_ALIGN_RIGHT;
 				}
 				else {
@@ -597,14 +597,14 @@ static void ui_block_align_calc_but(uiBut *first, short nr)
 				flag |= UI_BUT_ALIGN_TOP;
 			}
 			else {  /* next button switches to new row */
-				
+
 				if (prev && buts_are_horiz(prev, but))
 					flag |= UI_BUT_ALIGN_LEFT;
 				else {
 					flag &= ~UI_BUT_ALIGN_LEFT;
 					flag |= UI_BUT_ALIGN_TOP;
 				}
-				
+
 				if ((flag & UI_BUT_ALIGN_TOP) == 0) {  /* still top row */
 					if (prev) {
 						if (next && buts_are_horiz(but, next))
@@ -614,16 +614,16 @@ static void ui_block_align_calc_but(uiBut *first, short nr)
 							flag = UI_BUT_ALIGN_DOWN | UI_BUT_ALIGN_LEFT;
 						}
 					}
-					else 
+					else
 						flag |= UI_BUT_ALIGN_DOWN;
 				}
-				else 
+				else
 					flag |= UI_BUT_ALIGN_TOP;
 			}
 		}
-		
+
 		but->drawflag |= flag;
-		
+
 		/* merge coordinates */
 		if (prev) {
 			/* simple cases */
@@ -646,7 +646,7 @@ static void ui_block_align_calc_but(uiBut *first, short nr)
 					/* the previous button is a single one in its row */
 					but->rect.ymax = (prev->rect.ymin + but->rect.ymax) / 2.0f;
 					prev->rect.ymin = but->rect.ymax;
-					
+
 					but->rect.xmin = prev->rect.xmin;
 					if (next && buts_are_horiz(but, next) == 0)
 						but->rect.xmax = prev->rect.xmax;
diff --git a/source/blender/editors/interface/interface_anim.c b/source/blender/editors/interface/interface_anim.c
index 95a0f8704fa..ea1b58107bd 100644
--- a/source/blender/editors/interface/interface_anim.c
+++ b/source/blender/editors/interface/interface_anim.c
@@ -73,26 +73,26 @@ void ui_but_anim_flag(uiBut *but, float cfra)
 	FCurve *fcu;
 	bool driven;
 	bool special;
-	
+
 	but->flag &= ~(UI_BUT_ANIMATED | UI_BUT_ANIMATED_KEY | UI_BUT_DRIVEN);
-	
+
 	/* NOTE: "special" is reserved for special F-Curves stored on the animation data
 	 *        itself (which are used to animate properties of the animation data).
 	 *        We count those as "animated" too for now
 	 */
 	fcu = ui_but_get_fcurve(but, &adt, &act, &driven, &special);
-	
+
 	if (fcu) {
 		if (!driven) {
 			but->flag |= UI_BUT_ANIMATED;
-			
-			/* T41525 - When the active action is a NLA strip being edited, 
+
+			/* T41525 - When the active action is a NLA strip being edited,
 			 * we need to correct the frame number to "look inside" the
 			 * remapped action
 			 */
 			if (adt)
 				cfra = BKE_nla_tweakedit_remap(adt, cfra, NLATIME_CONVERT_UNMAP);
-			
+
 			if (fcurve_frame_has_keyframe(fcu, cfra, 0))
 				but->flag |= UI_BUT_ANIMATED_KEY;
 		}
@@ -111,9 +111,9 @@ bool ui_but_anim_expression_get(uiBut *but, char *str, size_t maxlen)
 	FCurve *fcu;
 	ChannelDriver *driver;
 	bool driven, special;
-	
+
 	fcu = ui_but_get_fcurve(but, NULL, NULL, &driven, &special);
-	
+
 	if (fcu && driven) {
 		driver = fcu->driver;
 
@@ -138,20 +138,20 @@ bool ui_but_anim_expression_set(uiBut *but, const char *str)
 
 	if (fcu && driven) {
 		driver = fcu->driver;
-		
+
 		if (driver && (driver->type == DRIVER_TYPE_PYTHON)) {
 			BLI_strncpy_utf8(driver->expression, str, sizeof(driver->expression));
-			
+
 			/* tag driver as needing to be recompiled */
 			driver->flag |= DRIVER_FLAG_RECOMPILE;
-			
+
 			/* clear invalid flags which may prevent this from working */
 			driver->flag &= ~DRIVER_FLAG_INVALID;
 			fcu->flag &= ~FCURVE_DISABLED;
-			
+
 			/* this notifier should update the Graph Editor and trigger depsgraph refresh? */
 			WM_event_add_notifier(but->block->evil_C, NC_ANIMATION | ND_KEYFRAME, NULL);
-			
+
 			return true;
 		}
 	}
@@ -167,14 +167,14 @@ bool ui_but_anim_expression_create(uiBut *but, const char *str)
 	FCurve *fcu;
 	char *path;
 	bool ok = false;
-	
+
 	/* button must have RNA-pointer to a numeric-capable property */
 	if (ELEM(NULL, but->rnapoin.data, but->rnaprop)) {
 		if (G.debug & G_DEBUG)
 			printf("ERROR: create expression failed - button has no RNA info attached\n");
 		return false;
 	}
-	
+
 	if (RNA_property_array_check(but->rnaprop) != 0) {
 		if (but->rnaindex == -1) {
 			if (G.debug & G_DEBUG)
@@ -182,7 +182,7 @@ bool ui_but_anim_expression_create(uiBut *but, const char *str)
 			return false;
 		}
 	}
-	
+
 	/* make sure we have animdata for this */
 	/* FIXME: until materials can be handled by depsgraph, don't allow drivers to be created for them */
 	id = (ID *)but->rnapoin.id.data;
@@ -191,18 +191,18 @@ bool ui_but_anim_expression_create(uiBut *but, const char *str)
 			printf("ERROR: create expression failed - invalid data-block for adding drivers (%p)\n", id);
 		return false;
 	}
-	
+
 	/* get path */
 	path = RNA_path_from_ID_to_property(&but->rnapoin, but->rnaprop);
 	if (path == NULL) {
 		return false;
 	}
-	
+
 	/* create driver */
 	fcu = verify_driver_fcurve(id, path, but->rnaindex, 1);
 	if (fcu) {
 		ChannelDriver *driver = fcu->driver;
-		
+
 		if (driver) {
 			/* set type of driver */
 			driver->type = DRIVER_TYPE_PYTHON;
@@ -218,9 +218,9 @@ bool ui_but_anim_expression_create(uiBut *but, const char *str)
 			ok = true;
 		}
 	}
-	
+
 	MEM_freeN(path);
-	
+
 	return ok;
 }
 
@@ -233,17 +233,17 @@ void ui_but_anim_autokey(bContext *C, uiBut *but, Scene *scene, float cfra)
 	bool special;
 
 	fcu = ui_but_get_fcurve(but, NULL, &action, &driven, &special);
-	
+
 	if (fcu == NULL)
 		return;
-	
+
 	if (special) {
 		/* NLA Strip property */
 		if (IS_AUTOKEY_ON(scene)) {
 			Depsgraph *depsgraph = CTX_data_depsgraph(C);
 			ReportList *reports = CTX_wm_reports(C);
 			ToolSettings *ts = scene->toolsettings;
-			
+
 			insert_keyframe_direct(depsgraph, reports, but->rnapoin, but->rnaprop, fcu, cfra, ts->keyframe_type, 0);
 			WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_EDITED, NULL);
 		}
@@ -256,23 +256,23 @@ void ui_but_anim_autokey(bContext *C, uiBut *but, Scene *scene, float cfra)
 			Depsgraph *depsgraph = CTX_data_depsgraph(C);
 			ReportList *reports = CTX_wm_reports(C);
 			ToolSettings *ts = scene->toolsettings;
-			
+
 			insert_keyframe_direct(depsgraph, reports, but->rnapoin, but->rnaprop, fcu, cfra, ts->keyframe_type, INSERTKEY_DRIVER);
 			WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_EDITED, NULL);
 		}
 	}
 	else {
 		id = but->rnapoin.id.data;
-		
+
 		/* TODO: this should probably respect the keyingset only option for anim */
 		if (autokeyframe_cfra_can_key(scene, id)) {
 			Depsgraph *depsgraph = CTX_data_depsgraph(C);
 			ReportList *reports = CTX_wm_reports(C);
 			ToolSettings *ts = scene->toolsettings;
 			short flag = ANIM_get_keyframing_flags(scene, 1);
-			
+
 			fcu->flag &= ~FCURVE_SELECTED;
-			
+
 			/* Note: We use but->rnaindex instead of fcu->array_index,
 			 *       because a button may control all items of an array at once.
 			 *       E.g., color wheels (see T42567). */
@@ -280,7 +280,7 @@ void ui_but_anim_autokey(bContext *C, uiBut *but, Scene *scene, float cfra)
 			insert_keyframe(depsgraph, reports, id, action,
 			                ((fcu->grp) ? (fcu->grp->name) : (NULL)),
 			                fcu->rna_path, but->rnaindex, cfra, ts->keyframe_type, flag);
-			
+
 			WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_EDITED, NULL);
 		}
 	}
diff --git a/source/blender/editors/interface/interface_draw.c b/source/blender/editors/interface/interface_draw.c
index ce22dac9e91..f093f47519c 100644
--- a/source/blender/editors/interface/interface_draw.c
+++ b/source/blender/editors/interface/interface_draw.c
@@ -184,7 +184,7 @@ void UI_draw_roundbox_4fv(bool filled, float minx, float miny, float maxx, float
 	else {
 		immVertex2f(pos, maxx, miny);
 	}
-	
+
 	/* corner right-top */
 	if (roundboxtype & UI_CNR_TOP_RIGHT) {
 		immVertex2f(pos, maxx, maxy - rad);
@@ -196,7 +196,7 @@ void UI_draw_roundbox_4fv(bool filled, float minx, float miny, float maxx, float
 	else {
 		immVertex2f(pos, maxx, maxy);
 	}
-	
+
 	/* corner left-top */
 	if (roundboxtype & UI_CNR_TOP_LEFT) {
 		immVertex2f(pos, minx + rad, maxy);
@@ -208,7 +208,7 @@ void UI_draw_roundbox_4fv(bool filled, float minx, float miny, float maxx, float
 	else {
 		immVertex2f(pos, minx, maxy);
 	}
-	
+
 	/* corner left-bottom */
 	if (roundboxtype & UI_CNR_BOTTOM_LEFT) {
 		immVertex2f(pos, minx, miny + rad);
@@ -220,7 +220,7 @@ void UI_draw_roundbox_4fv(bool filled, float minx, float miny, float maxx, float
 	else {
 		immVertex2f(pos, minx, miny);
 	}
-	
+
 	immEnd();
 	immUnbindProgram();
 #endif
@@ -302,15 +302,15 @@ void UI_draw_roundbox_shade_x(
 
 	/* start with corner right-bottom */
 	if (roundboxtype & UI_CNR_BOTTOM_RIGHT) {
-		
+
 		round_box_shade_col(color, coltop, coldown, 0.0);
 		immVertex2f(pos, maxx - rad, miny);
-		
+
 		for (a = 0; a < 7; a++) {
 			round_box_shade_col(color, coltop, coldown, vec[a][1] * idiv);
 			immVertex2f(pos, maxx - rad + vec[a][0], miny + vec[a][1]);
 		}
-		
+
 		round_box_shade_col(color, coltop, coldown, rad * idiv);
 		immVertex2f(pos, maxx, miny + rad);
 	}
@@ -318,13 +318,13 @@ void UI_draw_roundbox_shade_x(
 		round_box_shade_col(color, coltop, coldown, 0.0);
 		immVertex2f(pos, maxx, miny);
 	}
-	
+
 	/* corner right-top */
 	if (roundboxtype & UI_CNR_TOP_RIGHT) {
-		
+
 		round_box_shade_col(color, coltop, coldown, (div - rad) * idiv);
 		immVertex2f(pos, maxx, maxy - rad);
-		
+
 		for (a = 0; a < 7; a++) {
 			round_box_shade_col(color, coltop, coldown, (div - rad + vec[a][1]) * idiv);
 			immVertex2f(pos, maxx - vec[a][1], maxy - rad + vec[a][0]);
@@ -336,18 +336,18 @@ void UI_draw_roundbox_shade_x(
 		round_box_shade_col(color, coltop, coldown, 1.0);
 		immVertex2f(pos, maxx, maxy);
 	}
-	
+
 	/* corner left-top */
 	if (roundboxtype & UI_CNR_TOP_LEFT) {
-		
+
 		round_box_shade_col(color, coltop, coldown, 1.0);
 		immVertex2f(pos, minx + rad, maxy);
-		
+
 		for (a = 0; a < 7; a++) {
 			round_box_shade_col(color, coltop, coldown, (div - vec[a][1]) * idiv);
 			immVertex2f(pos, minx + rad - vec[a][0], maxy - vec[a][1]);
 		}
-		
+
 		round_box_shade_col(color, coltop, coldown, (div - rad) * idiv);
 		immVertex2f(pos, minx, maxy - rad);
 	}
@@ -355,18 +355,18 @@ void UI_draw_roundbox_shade_x(
 		round_box_shade_col(color, coltop, coldown, 1.0);
 		immVertex2f(pos, minx, maxy);
 	}
-	
+
 	/* corner left-bottom */
 	if (roundboxtype & UI_CNR_BOTTOM_LEFT) {
-		
+
 		round_box_shade_col(color, coltop, coldown, rad * idiv);
 		immVertex2f(pos, minx, miny + rad);
-		
+
 		for (a = 0; a < 7; a++) {
 			round_box_shade_col(color, coltop, coldown, (rad - vec[a][1]) * idiv);
 			immVertex2f(pos, minx + vec[a][1], miny + rad - vec[a][0]);
 		}
-		
+
 		round_box_shade_col(color, coltop, coldown, 0.0);
 		immVertex2f(pos, minx + rad, miny);
 	}
@@ -418,7 +418,7 @@ void UI_draw_roundbox_shade_y(
 	float colLeft[3], colRight[3];
 	int vert_count = 0;
 	int a;
-	
+
 	/* mult */
 	for (a = 0; a < 7; a++) {
 		mul_v2_fl(vec[a], rad);
@@ -450,12 +450,12 @@ void UI_draw_roundbox_shade_y(
 	if (roundboxtype & UI_CNR_BOTTOM_RIGHT) {
 		round_box_shade_col(color, colLeft, colRight, 0.0);
 		immVertex2f(pos, maxx - rad, miny);
-		
+
 		for (a = 0; a < 7; a++) {
 			round_box_shade_col(color, colLeft, colRight, vec[a][0] * idiv);
 			immVertex2f(pos, maxx - rad + vec[a][0], miny + vec[a][1]);
 		}
-		
+
 		round_box_shade_col(color, colLeft, colRight, rad * idiv);
 		immVertex2f(pos, maxx, miny + rad);
 	}
@@ -463,14 +463,14 @@ void UI_draw_roundbox_shade_y(
 		round_box_shade_col(color, colLeft, colRight, 0.0);
 		immVertex2f(pos, maxx, miny);
 	}
-	
+
 	/* corner right-top */
 	if (roundboxtype & UI_CNR_TOP_RIGHT) {
 		round_box_shade_col(color, colLeft, colRight, 0.0);
 		immVertex2f(pos, maxx, maxy - rad);
-		
+
 		for (a = 0; a < 7; a++) {
-			
+
 			round_box_shade_col(color, colLeft, colRight, (div - rad - vec[a][0]) * idiv);
 			immVertex2f(pos, maxx - vec[a][1], maxy - rad + vec[a][0]);
 		}
@@ -481,17 +481,17 @@ void UI_draw_roundbox_shade_y(
 		round_box_shade_col(color, colLeft, colRight, 0.0);
 		immVertex2f(pos, maxx, maxy);
 	}
-	
+
 	/* corner left-top */
 	if (roundboxtype & UI_CNR_TOP_LEFT) {
 		round_box_shade_col(color, colLeft, colRight, (div - rad) * idiv);
 		immVertex2f(pos, minx + rad, maxy);
-		
+
 		for (a = 0; a < 7; a++) {
 			round_box_shade_col(color, colLeft, colRight, (div - rad + vec[a][0]) * idiv);
 			immVertex2f(pos, minx + rad - vec[a][0], maxy - vec[a][1]);
 		}
-		
+
 		round_box_shade_col(color, colLeft, colRight, 1.0);
 		immVertex2f(pos, minx, maxy - rad);
 	}
@@ -499,17 +499,17 @@ void UI_draw_roundbox_shade_y(
 		round_box_shade_col(color, colLeft, colRight, 1.0);
 		immVertex2f(pos, minx, maxy);
 	}
-	
+
 	/* corner left-bottom */
 	if (roundboxtype & UI_CNR_BOTTOM_LEFT) {
 		round_box_shade_col(color, colLeft, colRight, 1.0);
 		immVertex2f(pos, minx, miny + rad);
-		
+
 		for (a = 0; a < 7; a++) {
 			round_box_shade_col(color, colLeft, colRight, (vec[a][0]) * idiv);
 			immVertex2f(pos, minx + vec[a][1], miny + rad - vec[a][0]);
 		}
-		
+
 		round_box_shade_col(color, colLeft, colRight, 1.0);
 		immVertex2f(pos, minx + rad, miny);
 	}
@@ -638,10 +638,10 @@ void ui_draw_but_IMAGE(ARegion *UNUSED(ar), uiBut *but, uiWidgetColors *UNUSED(w
 
 	float facx = 1.0f;
 	float facy = 1.0f;
-	
+
 	int w = BLI_rcti_size_x(rect);
 	int h = BLI_rcti_size_y(rect);
-	
+
 	/* scissor doesn't seem to be doing the right thing...? */
 #if 0
 	/* prevent drawing outside widget area */
@@ -649,9 +649,9 @@ void ui_draw_but_IMAGE(ARegion *UNUSED(ar), uiBut *but, uiWidgetColors *UNUSED(w
 	glGetIntegerv(GL_SCISSOR_BOX, scissor);
 	glScissor(rect->xmin, rect->ymin, w, h);
 #endif
-	
+
 	glEnable(GL_BLEND);
-	
+
 	if (w != ibuf->x || h != ibuf->y) {
 		facx = (float)w / (float)ibuf->x;
 		facy = (float)h / (float)ibuf->y;
@@ -660,14 +660,14 @@ void ui_draw_but_IMAGE(ARegion *UNUSED(ar), uiBut *but, uiWidgetColors *UNUSED(w
 	IMMDrawPixelsTexState state = immDrawPixelsTexSetup(GPU_SHADER_2D_IMAGE_COLOR);
 	immDrawPixelsTex(&state, (float)rect->xmin, (float)rect->ymin, ibuf->x, ibuf->y, GL_RGBA, GL_UNSIGNED_BYTE, GL_NEAREST, ibuf->rect,
 	                 facx, facy, NULL);
-	
+
 	glDisable(GL_BLEND);
-	
+
 #if 0
 	// restore scissortest
 	glScissor(scissor[0], scissor[1], scissor[2], scissor[3]);
 #endif
-	
+
 #endif
 }
 
@@ -788,10 +788,10 @@ void ui_draw_but_HISTOGRAM(ARegion *UNUSED(ar), uiBut *but, uiWidgetColors *UNUS
 		.ymin = (float)recti->ymin + 1,
 		.ymax = (float)recti->ymax - 1
 	};
-	
+
 	float w = BLI_rctf_size_x(&rect);
 	float h = BLI_rctf_size_y(&rect) * hist->ymax;
-	
+
 	glEnable(GL_BLEND);
 	glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
 
@@ -850,7 +850,7 @@ void ui_draw_but_HISTOGRAM(ARegion *UNUSED(ar), uiBut *but, uiWidgetColors *UNUS
 	}
 
 	immUnbindProgram();
-	
+
 	/* outline */
 	draw_scope_end(&rect, scissor);
 }
@@ -884,9 +884,9 @@ void ui_draw_but_WAVEFORM(ARegion *UNUSED(ar), uiBut *but, uiWidgetColors *UNUSE
 	float colorsycc[3][3] = {{1, 0, 1}, {1, 1, 0}, {0, 1, 1}};
 	float colors_alpha[3][3], colorsycc_alpha[3][3]; /* colors  pre multiplied by alpha for speed up */
 	float min, max;
-	
+
 	if (scopes == NULL) return;
-	
+
 	rctf rect = {
 		.xmin = (float)recti->xmin + 1,
 		.xmax = (float)recti->xmax - 1,
@@ -900,10 +900,10 @@ void ui_draw_but_WAVEFORM(ARegion *UNUSED(ar), uiBut *but, uiWidgetColors *UNUSE
 	float h = BLI_rctf_size_y(&rect) * scopes->wavefrm_yfac;
 	float yofs = rect.ymin + (BLI_rctf_size_y(&rect) - h) * 0.5f;
 	float w3 = w / 3.0f;
-	
+
 	/* log scale for alpha */
 	float alpha = scopes->wavefrm_alpha * scopes->wavefrm_alpha;
-	
+
 	unit_m3(colors);
 
 	for (int c = 0; c < 3; c++) {
@@ -974,7 +974,7 @@ void ui_draw_but_WAVEFORM(ARegion *UNUSED(ar), uiBut *but, uiWidgetColors *UNUSE
 
 		immEnd();
 	}
-	
+
 	/* separate min max zone on the right */
 	immBegin(GWN_PRIM_LINES, 2);
 	immVertex2f(pos, rect.xmin + w, rect.ymin);
@@ -1171,20 +1171,20 @@ void ui_draw_but_VECTORSCOPE(ARegion *UNUSED(ar), uiBut *but, uiWidgetColors *UN
 	const float colors[6][3] = {
 	    {0.75, 0.0, 0.0},  {0.75, 0.75, 0.0}, {0.0, 0.75, 0.0},
 	    {0.0, 0.75, 0.75}, {0.0, 0.0, 0.75},  {0.75, 0.0, 0.75}};
-	
+
 	rctf rect = {
 		.xmin = (float)recti->xmin + 1,
 		.xmax = (float)recti->xmax - 1,
 		.ymin = (float)recti->ymin + 1,
 		.ymax = (float)recti->ymax - 1
 	};
-	
+
 	float w = BLI_rctf_size_x(&rect);
 	float h = BLI_rctf_size_y(&rect);
 	float centerx = rect.xmin + w * 0.5f;
 	float centery = rect.ymin + h * 0.5f;
 	float diam = (w < h) ? w : h;
-	
+
 	float alpha = scopes->vecscope_alpha * scopes->vecscope_alpha * scopes->vecscope_alpha;
 
 	glEnable(GL_BLEND);
@@ -1202,7 +1202,7 @@ void ui_draw_but_VECTORSCOPE(ARegion *UNUSED(ar), uiBut *but, uiWidgetColors *UN
 	          (rect.ymin - 1),
 	          (rect.xmax + 1) - (rect.xmin - 1),
 	          (rect.ymax + 1) - (rect.ymin - 1));
-	
+
 	Gwn_VertFormat *format = immVertexFormat();
 	unsigned int pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
 
@@ -1243,7 +1243,7 @@ void ui_draw_but_VECTORSCOPE(ARegion *UNUSED(ar), uiBut *but, uiWidgetColors *UN
 	/* saturation points */
 	for (int i = 0; i < 6; i++)
 		vectorscope_draw_target(pos, centerx, centery, diam, colors[i]);
-	
+
 	if (scopes->ok && scopes->vecscope != NULL) {
 		/* pixel point cloud */
 		float col[3] = {alpha, alpha, alpha};
@@ -1434,16 +1434,16 @@ void ui_draw_but_COLORBAND(uiBut *but, uiWidgetColors *UNUSED(wcol), const rcti
 
 	v1[1] = y1 + sizey_solid;
 	v2[1] = rect->ymax;
-	
+
 	immBegin(GWN_PRIM_TRI_STRIP, (sizex + 1) * 2);
 	for (int a = 0; a <= sizex; a++) {
 		float pos = ((float)a) / sizex;
 		BKE_colorband_evaluate(coba, pos, colf);
 		if (display)
 			IMB_colormanagement_scene_linear_to_display_v3(colf, display);
-		
+
 		v1[0] = v2[0] = x1 + a;
-		
+
 		immAttrib4fv(color, colf);
 		immVertex2fv(position, v1);
 		immVertex2fv(position, v2);
@@ -1499,7 +1499,7 @@ void ui_draw_but_COLORBAND(uiBut *but, uiWidgetColors *UNUSED(wcol), const rcti
 	immEnd();
 
 	glDisable(GL_BLEND);
-	
+
 	/* layer: draw handles */
 	for (int a = 0; a < coba->tot; a++, cbd++) {
 		if (a != coba->cur) {
@@ -1524,20 +1524,20 @@ void ui_draw_but_UNITVEC(uiBut *but, uiWidgetColors *wcol, const rcti *rect)
 	float diffuse[3] = {1.0f, 1.0f, 1.0f};
 	float light[3];
 	float size;
-	
+
 	/* backdrop */
 	UI_draw_roundbox_corner_set(UI_CNR_ALL);
 	UI_draw_roundbox_3ubAlpha(true, rect->xmin, rect->ymin, rect->xmax, rect->ymax, 5.0f, (unsigned char *)wcol->inner, 255);
-	
+
 	glCullFace(GL_BACK);
 	glEnable(GL_CULL_FACE);
-	
+
 	/* setup lights */
 	ui_but_v3_get(but, light);
 
 	/* transform to button */
 	gpuPushMatrix();
-	
+
 	if (BLI_rcti_size_x(rect) < BLI_rcti_size_y(rect))
 		size = 0.5f * BLI_rcti_size_x(rect);
 	else
@@ -1554,7 +1554,7 @@ void ui_draw_but_UNITVEC(uiBut *but, uiWidgetColors *wcol, const rcti *rect)
 
 	/* restore */
 	glDisable(GL_CULL_FACE);
-	
+
 	/* AA circle */
 	Gwn_VertFormat *format = immVertexFormat();
 	unsigned int pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
@@ -1578,7 +1578,7 @@ static void ui_draw_but_curve_grid(unsigned int pos, const rcti *rect, float zoo
 	float dx = step * zoomx;
 	float fx = rect->xmin + zoomx * (-offsx);
 	if (fx > rect->xmin) fx -= dx * (floorf(fx - rect->xmin));
-	
+
 	float dy = step * zoomy;
 	float fy = rect->ymin + zoomy * (-offsy);
 	if (fy > rect->ymin) fy -= dy * (floorf(fy - rect->ymin));
@@ -1598,7 +1598,7 @@ static void ui_draw_but_curve_grid(unsigned int pos, const rcti *rect, float zoo
 		fy += dy;
 	}
 	immEnd();
-	
+
 }
 
 static void gl_shaded_color(unsigned char *col, int shade)
@@ -1732,7 +1732,7 @@ void ui_draw_but_CURVE(ARegion *ar, uiBut *but, uiWidgetColors *wcol, const rcti
 		else if (cumap->cur == 3) {
 			float lum = IMB_colormanagement_get_luminance(cumap->sample);
 			immUniformColor3ub(240, 240, 240);
-			
+
 			immVertex2f(pos, rect->xmin + zoomx * (lum - offsx), rect->ymin);
 			immVertex2f(pos, rect->xmin + zoomx * (lum - offsx), rect->ymax);
 		}
@@ -1743,7 +1743,7 @@ void ui_draw_but_CURVE(ARegion *ar, uiBut *but, uiWidgetColors *wcol, const rcti
 				immUniformColor3ub(100, 240, 100);
 			else
 				immUniformColor3ub(100, 100, 240);
-			
+
 			immVertex2f(pos, rect->xmin + zoomx * (cumap->sample[cumap->cur] - offsx), rect->ymin);
 			immVertex2f(pos, rect->xmin + zoomx * (cumap->sample[cumap->cur] - offsx), rect->ymax);
 		}
@@ -1755,7 +1755,7 @@ void ui_draw_but_CURVE(ARegion *ar, uiBut *but, uiWidgetColors *wcol, const rcti
 	glEnable(GL_LINE_SMOOTH);
 	glEnable(GL_BLEND);
 	immBegin(GWN_PRIM_LINE_STRIP, (CM_TABLE + 1) + 2);
-	
+
 	if (cuma->table == NULL)
 		curvemapping_changed(cumap, false);
 
@@ -1811,7 +1811,7 @@ void ui_draw_but_CURVE(ARegion *ar, uiBut *but, uiWidgetColors *wcol, const rcti
 	}
 	immEnd();
 	immUnbindProgram();
-	
+
 	/* restore scissortest */
 	glScissor(scissor[0], scissor[1], scissor[2], scissor[3]);
 
@@ -1959,7 +1959,7 @@ void ui_draw_but_TRACKPREVIEW(ARegion *UNUSED(ar), uiBut *but, uiWidgetColors *U
 void ui_draw_but_NODESOCKET(ARegion *ar, uiBut *but, uiWidgetColors *UNUSED(wcol), const rcti *recti)
 {
 	static const float size = 5.0f;
-	
+
 	/* 16 values of sin function */
 	const float si[16] = {
 	    0.00000000f, 0.39435585f, 0.72479278f, 0.93775213f,
@@ -1974,12 +1974,12 @@ void ui_draw_but_NODESOCKET(ARegion *ar, uiBut *but, uiWidgetColors *UNUSED(wcol
 	    -0.99486932f, -0.87434661f, -0.61210598f, -0.25065253f,
 	    0.15142777f, 0.52896401f, 0.82076344f, 0.97952994f,
 	};
-	
+
 	GLint scissor[4];
-	
+
 	/* need scissor test, can draw outside of boundary */
 	glGetIntegerv(GL_SCISSOR_BOX, scissor);
-	
+
 	rcti scissor_new = {
 		.xmin = recti->xmin,
 		.ymin = recti->ymin,
@@ -1994,7 +1994,7 @@ void ui_draw_but_NODESOCKET(ARegion *ar, uiBut *but, uiWidgetColors *UNUSED(wcol
 	          scissor_new.ymin,
 	          BLI_rcti_size_x(&scissor_new),
 	          BLI_rcti_size_y(&scissor_new));
-	
+
 	float x = 0.5f * (recti->xmin + recti->xmax);
 	float y = 0.5f * (recti->ymin + recti->ymax);
 
@@ -2008,7 +2008,7 @@ void ui_draw_but_NODESOCKET(ARegion *ar, uiBut *but, uiWidgetColors *UNUSED(wcol
 	for (int a = 0; a < 16; a++)
 		immVertex2f(pos, x + size * si[a], y + size * co[a]);
 	immEnd();
-	
+
 	immUniformColor4ub(0, 0, 0, 150);
 	glLineWidth(1);
 	glEnable(GL_LINE_SMOOTH);
@@ -2020,7 +2020,7 @@ void ui_draw_but_NODESOCKET(ARegion *ar, uiBut *but, uiWidgetColors *UNUSED(wcol
 	glDisable(GL_BLEND);
 
 	immUnbindProgram();
-	
+
 	/* restore scissortest */
 	glScissor(scissor[0], scissor[1], scissor[2], scissor[3]);
 }
@@ -2107,7 +2107,7 @@ void UI_draw_box_shadow(unsigned char alpha, float minx, float miny, float maxx,
 	ui_shadowbox(pos, color, minx, miny, maxx, maxy, 11.0, (20 * alpha) >> 8);
 	ui_shadowbox(pos, color, minx, miny, maxx, maxy, 7.0, (40 * alpha) >> 8);
 	ui_shadowbox(pos, color, minx, miny, maxx, maxy, 5.0, (80 * alpha) >> 8);
-	
+
 	immEnd();
 
 	immUnbindProgram();
@@ -2119,7 +2119,7 @@ void UI_draw_box_shadow(unsigned char alpha, float minx, float miny, float maxx,
 void ui_draw_dropshadow(const rctf *rct, float radius, float aspect, float alpha, int UNUSED(select))
 {
 	float rad;
-	
+
 	if (radius > (BLI_rctf_size_y(rct) - 10.0f) * 0.5f)
 		rad = (BLI_rctf_size_y(rct) - 10.0f) * 0.5f;
 	else
@@ -2135,7 +2135,7 @@ void ui_draw_dropshadow(const rctf *rct, float radius, float aspect, float alpha
 	{
 		a = i * aspect;
 	}
-	
+
 	glEnable(GL_BLEND);
 	const float dalpha = alpha * 2.0f / 255.0f;
 	float calpha = dalpha;
@@ -2151,7 +2151,7 @@ void ui_draw_dropshadow(const rctf *rct, float radius, float aspect, float alpha
 		visibility = visibility * (1.0f - calpha);
 		calpha += dalpha;
 	}
-	
+
 	uiWidgetBaseParameters widget_params = {
 		.recti.xmin = rct->xmin, .recti.ymin = rct->ymin,
 		.recti.xmax = rct->xmax, .recti.ymax = rct->ymax - 10.0f,
@@ -2177,6 +2177,6 @@ void ui_draw_dropshadow(const rctf *rct, float radius, float aspect, float alpha
 	float color[4] = {0.0f, 0.0f, 0.0f, 0.4f};
 	UI_draw_roundbox_4fv(false, rct->xmin - 0.5f, rct->ymin - 0.5f, rct->xmax + 0.5f, rct->ymax + 0.5f, radius + 0.5f, color);
 	glDisable(GL_LINE_SMOOTH);
-	
+
 	glDisable(GL_BLEND);
 }
diff --git a/source/blender/editors/interface/interface_handlers.c b/source/blender/editors/interface/interface_handlers.c
index 6332d006dbb..d597fde767f 100644
--- a/source/blender/editors/interface/interface_handlers.c
+++ b/source/blender/editors/interface/interface_handlers.c
@@ -4,7 +4,7 @@
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version. 
+ * of the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -17,7 +17,7 @@
  *
  * The Original Code is Copyright (C) 2008 Blender Foundation.
  * All rights reserved.
- * 
+ *
  * Contributor(s): Blender Foundation
  *
  * ***** END GPL LICENSE BLOCK *****
@@ -296,7 +296,7 @@ typedef struct uiHandleButtonData {
 
 	/* tooltip */
 	unsigned int tooltip_force : 1;
-	
+
 	/* auto open */
 	bool used_mouse;
 	wmTimer *autoopentimer;
@@ -338,7 +338,7 @@ typedef struct uiHandleButtonData {
 	/* menu open (watch UI_screen_free_active_but) */
 	uiPopupBlockHandle *menu;
 	int menuretval;
-	
+
 	/* search box (watch UI_screen_free_active_but) */
 	ARegion *searchbox;
 #ifdef USE_KEYNAV_LIMIT
@@ -365,14 +365,14 @@ typedef struct uiAfterFunc {
 	uiButHandleFunc func;
 	void *func_arg1;
 	void *func_arg2;
-	
+
 	uiButHandleNFunc funcN;
 	void *func_argN;
 
 	uiButHandleRenameFunc rename_func;
 	void *rename_arg1;
 	void *rename_orig;
-	
+
 	uiBlockHandleFunc handle_func;
 	void *handle_func_arg;
 	int retval;
@@ -459,18 +459,18 @@ void ui_pan_to_scroll(const wmEvent *event, int *type, int *val)
 	}
 	else {
 		lastdy += dy;
-		
+
 		if (ABS(lastdy) > (int)UI_UNIT_Y) {
 			if (U.uiflag2 & USER_TRACKPAD_NATURAL)
 				dy = -dy;
-			
+
 			*val = KM_PRESS;
-			
+
 			if (dy > 0)
 				*type = WHEELUPMOUSE;
 			else
 				*type = WHEELDOWNMOUSE;
-			
+
 			lastdy = 0;
 		}
 	}
@@ -537,7 +537,7 @@ static uiBut *ui_but_next(uiBut *but)
 static uiBut *ui_but_first(uiBlock *block)
 {
 	uiBut *but;
-	
+
 	but = block->buttons.first;
 	while (but) {
 		if (ui_but_is_editable(but)) return but;
@@ -549,7 +549,7 @@ static uiBut *ui_but_first(uiBlock *block)
 static uiBut *ui_but_last(uiBlock *block)
 {
 	uiBut *but;
-	
+
 	but = block->buttons.last;
 	while (but) {
 		if (ui_but_is_editable(but)) return but;
@@ -606,7 +606,7 @@ static void ui_mouse_scale_warp(
         float *r_mx, float *r_my, const bool shift)
 {
 	const float fac = ui_mouse_scale_warp_factor(shift);
-	
+
 	/* slow down the mouse, this is fairly picky */
 	*r_mx = (data->dragstartx * (1.0f - fac) + mx * fac);
 	*r_my = (data->dragstarty * (1.0f - fac) + my * fac);
@@ -717,7 +717,7 @@ static void ui_apply_but_func(bContext *C, uiBut *but)
 			after->butm_func_arg = block->butm_func_arg;
 			after->a2 = but->a2;
 		}
-		
+
 		if (block->handle)
 			after->popup_op = block->handle->popup_op;
 
@@ -832,17 +832,17 @@ static void ui_apply_but_funcs_after(bContext *C)
 			after.funcN(C, after.func_argN, after.func_arg2);
 		if (after.func_argN)
 			MEM_freeN(after.func_argN);
-		
+
 		if (after.handle_func)
 			after.handle_func(C, after.handle_func_arg, after.retval);
 		if (after.butm_func)
 			after.butm_func(C, after.butm_func_arg, after.a2);
-		
+
 		if (after.rename_func)
 			after.rename_func(C, after.rename_arg1, after.rename_orig);
 		if (after.rename_orig)
 			MEM_freeN(after.rename_orig);
-		
+
 		if (after.undostr[0])
 			ED_undo_push(C, after.undostr);
 	}
@@ -880,32 +880,32 @@ static void ui_apply_but_TOG(bContext *C, uiBut *but, uiHandleButtonData *data)
 {
 	double value;
 	int w, lvalue, push;
-	
+
 	value = ui_but_value_get(but);
 	lvalue = (int)value;
-	
+
 	if (but->bit) {
 		w = UI_BITBUT_TEST(lvalue, but->bitnr);
 		if (w) lvalue = UI_BITBUT_CLR(lvalue, but->bitnr);
 		else   lvalue = UI_BITBUT_SET(lvalue, but->bitnr);
-		
+
 		ui_but_value_set(but, (double)lvalue);
 		if (but->type == UI_BTYPE_ICON_TOGGLE || but->type == UI_BTYPE_ICON_TOGGLE_N) {
 			ui_but_update_edited(but);
 		}
 	}
 	else {
-		
+
 		if (value == 0.0) push = 1;
 		else push = 0;
-		
+
 		if (ELEM(but->type, UI_BTYPE_TOGGLE_N, UI_BTYPE_ICON_TOGGLE_N, UI_BTYPE_CHECKBOX_N)) push = !push;
 		ui_but_value_set(but, (double)push);
 		if (but->type == UI_BTYPE_ICON_TOGGLE || but->type == UI_BTYPE_ICON_TOGGLE_N) {
 			ui_but_update_edited(but);
 		}
 	}
-	
+
 	ui_apply_but_func(C, but);
 
 	data->retval = but->retval;
@@ -1705,11 +1705,11 @@ static bool ui_but_contains_point_px_icon(uiBut *but, ARegion *ar, const wmEvent
 {
 	rcti rect;
 	int x = event->x, y = event->y;
-	
+
 	ui_window_to_block(ar, but->block, &x, &y);
-	
+
 	BLI_rcti_rctf_copy(&rect, &but->rect);
-	
+
 	if (but->imb || but->type == UI_BTYPE_COLOR) {
 		/* use button size itself */
 	}
@@ -1721,7 +1721,7 @@ static bool ui_but_contains_point_px_icon(uiBut *but, ARegion *ar, const wmEvent
 		rect.xmin += delta / 2;
 		rect.xmax -= delta / 2;
 	}
-	
+
 	return BLI_rcti_isect_pt(&rect, x, y);
 }
 
@@ -1812,7 +1812,7 @@ static bool ui_but_drag_init(
 		}
 		return true;
 	}
-	
+
 	return false;
 }
 
@@ -2028,13 +2028,13 @@ static void ui_but_drop(bContext *C, const wmEvent *event, uiBut *but, uiHandleB
 {
 	wmDrag *wmd;
 	ListBase *drags = event->customdata; /* drop event type has listbase customdata by default */
-	
+
 	for (wmd = drags->first; wmd; wmd = wmd->next) {
 		if (wmd->type == WM_DRAG_ID) {
 			/* align these types with UI_but_active_drop_name */
 			if (ELEM(but->type, UI_BTYPE_TEXT, UI_BTYPE_SEARCH_MENU)) {
 				ID *id = (ID *)wmd->poin;
-				
+
 				button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
 
 				ui_textedit_string_set(but, data, id->name + 2);
@@ -2048,7 +2048,7 @@ static void ui_but_drop(bContext *C, const wmEvent *event, uiBut *but, uiHandleB
 			}
 		}
 	}
-	
+
 }
 
 /* ******************* copy and paste ********************  */
@@ -2086,7 +2086,7 @@ static void ui_but_copy_paste(bContext *C, uiBut *but, uiHandleButtonData *data,
 
 	/* numeric value */
 	if (ELEM(but->type, UI_BTYPE_NUM, UI_BTYPE_NUM_SLIDER)) {
-		
+
 		if (but->poin == NULL && but->rnapoin.data == NULL) {
 			/* pass */
 		}
@@ -2189,7 +2189,7 @@ static void ui_but_copy_paste(bContext *C, uiBut *but, uiHandleButtonData *data,
 	/* RGB triple */
 	else if (but->type == UI_BTYPE_COLOR) {
 		float rgba[4];
-		
+
 		if (but->poin == NULL && but->rnapoin.data == NULL) {
 			/* pass */
 		}
@@ -2200,7 +2200,7 @@ static void ui_but_copy_paste(bContext *C, uiBut *but, uiHandleButtonData *data,
 				rgba[3] = RNA_property_float_get_index(&but->rnapoin, but->rnaprop, 3);
 			else
 				rgba[3] = 1.0f;
-			
+
 			ui_but_v3_get(but, rgba);
 			/* convert to linear color to do compatible copy between gamma and non-gamma */
 			if (but->rnaprop && RNA_property_subtype(but->rnaprop) == PROP_COLOR_GAMMA)
@@ -2208,7 +2208,7 @@ static void ui_but_copy_paste(bContext *C, uiBut *but, uiHandleButtonData *data,
 
 			BLI_snprintf(buf_copy, sizeof(buf_copy), "[%f, %f, %f, %f]", rgba[0], rgba[1], rgba[2], rgba[3]);
 			WM_clipboard_text_set(buf_copy, 0);
-			
+
 		}
 		else {
 			if (sscanf(buf_paste, "[%f, %f, %f, %f]", &rgba[0], &rgba[1], &rgba[2], &rgba[3]) == 4) {
@@ -2350,7 +2350,7 @@ static int ui_text_position_from_hidden(uiBut *but, int pos)
 
 	for (i = 0, strpos = butstr; i < pos; i++)
 		strpos = BLI_str_find_next_char_utf8(strpos, NULL);
-	
+
 	return (strpos - butstr);
 }
 
@@ -2448,7 +2448,7 @@ static bool ui_textedit_delete_selection(uiBut *but, uiHandleButtonData *data)
 		memmove(str + but->selsta, str + but->selend, (len - but->selend) + 1);
 		changed = true;
 	}
-	
+
 	but->pos = but->selend = but->selsta;
 	return changed;
 }
@@ -2479,7 +2479,7 @@ static void ui_textedit_set_cursor_pos(uiBut *but, uiHandleButtonData *data, con
 
 	if (fstyle->kerning == 1) /* for BLF_width */
 		BLF_enable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
-	
+
 	ui_but_text_password_hide(password_str, but, false);
 
 	if (ELEM(but->type, UI_BTYPE_TEXT, UI_BTYPE_SEARCH_MENU)) {
@@ -2489,13 +2489,13 @@ static void ui_textedit_set_cursor_pos(uiBut *but, uiHandleButtonData *data, con
 	}
 	/* but this extra .05 makes clicks inbetween characters feel nicer */
 	startx += ((UI_TEXT_MARGIN_X + 0.05f) * U.widget_unit) / aspect;
-	
+
 	/* mouse dragged outside the widget to the left */
 	if (x < startx) {
 		int i = but->ofs;
 
 		str_last = &str[but->ofs];
-		
+
 		while (i > 0) {
 			if (BLI_str_cursor_step_prev_utf8(str, but->ofs, &i)) {
 				/* 0.25 == scale factor for less sensitivity */
@@ -2517,7 +2517,7 @@ static void ui_textedit_set_cursor_pos(uiBut *but, uiHandleButtonData *data, con
 		/* keep track of previous distance from the cursor to the char */
 		float cdist, cdist_prev = 0.0f;
 		short pos_prev;
-		
+
 		str_last = &str[strlen(str)];
 
 		but->pos = pos_prev = ((str_last - str) - but->ofs);
@@ -2550,10 +2550,10 @@ static void ui_textedit_set_cursor_pos(uiBut *but, uiHandleButtonData *data, con
 		but->pos += but->ofs;
 		if (but->pos < 0) but->pos = 0;
 	}
-	
+
 	if (fstyle->kerning == 1)
 		BLF_disable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
-	
+
 	ui_but_text_password_hide(password_str, but, true);
 
 	fstyle->points = fstyle_points_prev;
@@ -2789,7 +2789,7 @@ static bool ui_textedit_copypaste(uiBut *but, uiHandleButtonData *data, const in
 	char *pbuf;
 	bool changed = false;
 	int buf_len;
-	
+
 	/* paste */
 	if (mode == UI_TEXTEDIT_PASTE) {
 		/* extract the first line from the clipboard */
@@ -2816,7 +2816,7 @@ static bool ui_textedit_copypaste(uiBut *but, uiHandleButtonData *data, const in
 		BLI_strncpy(buf, data->str + but->selsta, sellen + 1);
 		WM_clipboard_text_set(buf, 0);
 		MEM_freeN(buf);
-		
+
 		/* for cut only, delete the selection afterwards */
 		if (mode == UI_TEXTEDIT_CUT) {
 			if ((but->selend - but->selsta) > 0) {
@@ -2972,7 +2972,7 @@ static void ui_textedit_end(bContext *C, uiBut *but, uiHandleButtonData *data)
 				printf("%s: invalid utf8 - stripped chars %d\n", __func__, strip);
 			}
 		}
-		
+
 		if (data->searchbox) {
 			if (data->cancel == false) {
 				if ((ui_searchbox_apply(but, data->searchbox) == false) &&
@@ -2991,11 +2991,11 @@ static void ui_textedit_end(bContext *C, uiBut *but, uiHandleButtonData *data)
 				MEM_SAFE_FREE(but->search_arg);
 			}
 		}
-		
+
 		but->editstr = NULL;
 		but->pos = -1;
 	}
-	
+
 	WM_cursor_modal_restore(win);
 
 #ifdef WITH_INPUT_IME
@@ -3092,7 +3092,7 @@ static void ui_do_but_textedit(
 				ui_searchbox_event(C, data->searchbox, but, event);
 #endif
 			}
-			
+
 			break;
 		case RIGHTMOUSE:
 		case ESCKEY:
@@ -3112,7 +3112,7 @@ static void ui_do_but_textedit(
 		case LEFTMOUSE:
 		{
 			bool had_selection = but->selsta != but->selend;
-			
+
 			/* exit on LMB only on RELEASE for searchbox, to mimic other popups, and allow multiple menu levels */
 			if (data->searchbox)
 				inbox = ui_searchbox_inside(data->searchbox, event->x, event->y);
@@ -3142,7 +3142,7 @@ static void ui_do_but_textedit(
 					retval = WM_UI_HANDLER_BREAK;
 				}
 			}
-			
+
 			/* only select a word in button if there was no selection before */
 			if (event->val == KM_DBL_CLICK && had_selection == false) {
 				ui_textedit_move(but, data, STRCUR_DIR_PREV, false, STRCUR_JUMP_DELIM);
@@ -3239,7 +3239,7 @@ static void ui_do_but_textedit(
 				                             event->ctrl ? STRCUR_JUMP_DELIM : STRCUR_JUMP_NONE);
 				retval = WM_UI_HANDLER_BREAK;
 				break;
-				
+
 			case AKEY:
 
 				/* Ctrl + A: Select all */
@@ -3317,7 +3317,7 @@ static void ui_do_but_textedit(
 			}
 
 			retval = WM_UI_HANDLER_BREAK;
-			
+
 		}
 		/* textbutton with this flag: do live update (e.g. for search buttons) */
 		if (but->flag & UI_BUT_TEXTEDIT_UPDATE) {
@@ -3353,7 +3353,7 @@ static void ui_do_but_textedit(
 			ui_but_update_edited(but);
 		}
 		but->changed = true;
-		
+
 		if (data->searchbox)
 			ui_searchbox_update(C, data->searchbox, but, true);  /* true = reset */
 	}
@@ -3550,7 +3550,7 @@ int ui_but_menu_direction(uiBut *but)
 
 	if (data && data->menu)
 		return data->menu->direction;
-	
+
 	return 0;
 }
 
@@ -3642,7 +3642,7 @@ static int ui_do_but_HOTKEYEVT(
 				return WM_UI_HANDLER_BREAK;
 			}
 		}
-		
+
 		/* always set */
 		but->modifier_key = 0;
 		if (event->shift) but->modifier_key |= KM_SHIFT;
@@ -3652,15 +3652,15 @@ static int ui_do_but_HOTKEYEVT(
 
 		ui_but_update(but);
 		ED_region_tag_redraw(data->region);
-			
+
 		if (event->val == KM_PRESS) {
 			if (ISHOTKEY(event->type)) {
-				
+
 				if (WM_key_event_string(event->type, false)[0])
 					ui_but_value_set(but, event->type);
 				else
 					data->cancel = true;
-				
+
 				button_activate_state(C, but, BUTTON_STATE_EXIT);
 				return WM_UI_HANDLER_BREAK;
 			}
@@ -3671,10 +3671,10 @@ static int ui_do_but_HOTKEYEVT(
 					button_activate_state(C, but, BUTTON_STATE_EXIT);
 				}
 			}
-			
+
 		}
 	}
-	
+
 	return WM_UI_HANDLER_CONTINUE;
 }
 
@@ -3899,13 +3899,13 @@ static int ui_do_but_EXIT(
         bContext *C, uiBut *but,
         uiHandleButtonData *data, const wmEvent *event)
 {
-	
+
 	if (data->state == BUTTON_STATE_HIGHLIGHT) {
 
 		/* first handle click on icondrag type button */
 		if (event->type == LEFTMOUSE && but->dragpoin) {
 			if (ui_but_contains_point_px_icon(but, data->region, event)) {
-				
+
 				/* tell the button to wait and keep checking further events to
 				 * see if it should start dragging */
 				button_activate_state(C, but, BUTTON_STATE_WAIT_DRAG);
@@ -3934,25 +3934,25 @@ static int ui_do_but_EXIT(
 		}
 	}
 	else if (data->state == BUTTON_STATE_WAIT_DRAG) {
-		
+
 		/* this function also ends state */
 		if (ui_but_drag_init(C, but, data, event)) {
 			return WM_UI_HANDLER_BREAK;
 		}
-		
-		/* If the mouse has been pressed and released, getting to 
-		 * this point without triggering a drag, then clear the 
+
+		/* If the mouse has been pressed and released, getting to
+		 * this point without triggering a drag, then clear the
 		 * drag state for this button and continue to pass on the event */
 		if (event->type == LEFTMOUSE && event->val == KM_RELEASE) {
 			button_activate_state(C, but, BUTTON_STATE_EXIT);
 			return WM_UI_HANDLER_CONTINUE;
 		}
-		
-		/* while waiting for a drag to be triggered, always block 
+
+		/* while waiting for a drag to be triggered, always block
 		 * other events from getting handled */
 		return WM_UI_HANDLER_BREAK;
 	}
-	
+
 	return WM_UI_HANDLER_CONTINUE;
 }
 
@@ -3966,7 +3966,7 @@ static float ui_numedit_apply_snapf(
 	}
 	else {
 		float fac = 1.0f;
-		
+
 		if (ui_but_is_unit(but)) {
 			UnitSettings *unit = but->block->unit;
 			int unit_type = RNA_SUBTYPE_UNIT_VALUE(UI_but_unit_type_get(but));
@@ -4014,7 +4014,7 @@ static float ui_numedit_apply_snapf(
 		else {
 			BLI_assert(0);
 		}
-		
+
 		if (fac != 1.0f)
 			tempf *= fac;
 	}
@@ -4159,7 +4159,7 @@ static bool ui_numedit_but_NUM(
 		}
 
 		data->dragf += (((float)(mx - data->draglastx)) / deler) * non_linear_scale;
-	
+
 		CLAMP(data->dragf, 0.0f, 1.0f);
 		data->draglastx = mx;
 		tempf = (softmin + data->dragf * softrange);
@@ -4172,7 +4172,7 @@ static bool ui_numedit_but_NUM(
 
 			CLAMP(temp, softmin, softmax);
 			lvalue = (int)data->value;
-			
+
 			if (temp != lvalue) {
 				data->dragchange = true;
 				data->value = (double)temp;
@@ -4262,11 +4262,11 @@ static int ui_do_but_NUM(
 
 	if (data->state == BUTTON_STATE_HIGHLIGHT) {
 		int type = event->type, val = event->val;
-		
+
 		if (type == MOUSEPAN) {
 			ui_pan_to_scroll(event, &type, &val);
 		}
-		
+
 		/* XXX hardcoded keymap check.... */
 		if (type == MOUSEPAN && event->alt)
 			retval = WM_UI_HANDLER_BREAK; /* allow accumulating values, otherwise scrolling gets preference */
@@ -4302,7 +4302,7 @@ static int ui_do_but_NUM(
 			copy_v2_v2_int(data->multi_data.drag_start, &event->x);
 #endif
 		}
-		
+
 	}
 	else if (data->state == BUTTON_STATE_NUM_EDITING) {
 		if (event->type == ESCKEY || event->type == RIGHTMOUSE) {
@@ -4363,7 +4363,7 @@ static int ui_do_but_NUM(
 		ui_do_but_textedit_select(C, block, but, data, event);
 		retval = WM_UI_HANDLER_BREAK;
 	}
-	
+
 	if (click) {
 		/* we can click on the side arrows to increment/decrement,
 		 * or click inside to edit the value directly */
@@ -4426,7 +4426,7 @@ static int ui_do_but_NUM(
 
 		retval = WM_UI_HANDLER_BREAK;
 	}
-	
+
 	data->draglastx = mx;
 	data->draglasty = my;
 
@@ -4675,13 +4675,13 @@ static int ui_do_but_SLI(
 			/* nudge slider to the left or right */
 			float f, tempf, softmin, softmax, softrange;
 			int temp;
-			
+
 			button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
-			
+
 			softmin = but->softmin;
 			softmax = but->softmax;
 			softrange = softmax - softmin;
-			
+
 			tempf = data->value;
 			temp = (int)data->value;
 
@@ -4694,13 +4694,13 @@ static int ui_do_but_SLI(
 			{
 				f = (float)(mx - but->rect.xmin) / (BLI_rctf_size_x(&but->rect));
 			}
-			
+
 			f = softmin + f * softrange;
-			
+
 			if (!ui_but_is_float(but)) {
 				if (f < temp) temp--;
 				else temp++;
-				
+
 				if (temp >= softmin && temp <= softmax)
 					data->value = temp;
 				else
@@ -4709,13 +4709,13 @@ static int ui_do_but_SLI(
 			else {
 				if (f < tempf) tempf -= 0.01f;
 				else tempf += 0.01f;
-				
+
 				if (tempf >= softmin && tempf <= softmax)
 					data->value = tempf;
 				else
 					data->cancel = true;
 			}
-			
+
 			button_activate_state(C, but, BUTTON_STATE_EXIT);
 			retval = WM_UI_HANDLER_BREAK;
 		}
@@ -4728,7 +4728,7 @@ static int ui_do_but_SLI(
 
 	data->draglastx = mx;
 	data->draglasty = my;
-	
+
 	return retval;
 }
 
@@ -4739,7 +4739,7 @@ static int ui_do_but_SCROLL(
 	int mx, my /*, click = 0 */;
 	int retval = WM_UI_HANDLER_CONTINUE;
 	bool horizontal = (BLI_rctf_size_x(&but->rect) > BLI_rctf_size_y(&but->rect));
-	
+
 	mx = event->x;
 	my = event->y;
 	ui_window_to_block(data->region, block, &mx, &my);
@@ -4785,7 +4785,7 @@ static int ui_do_but_SCROLL(
 
 		retval = WM_UI_HANDLER_BREAK;
 	}
-	
+
 	return retval;
 }
 
@@ -4868,9 +4868,9 @@ static int ui_do_but_BLOCK(
         bContext *C, uiBut *but,
         uiHandleButtonData *data, const wmEvent *event)
 {
-	
+
 	if (data->state == BUTTON_STATE_HIGHLIGHT) {
-		
+
 		/* first handle click on icondrag type button */
 		if (event->type == LEFTMOUSE && but->dragpoin && event->val == KM_PRESS) {
 			if (ui_but_contains_point_px_icon(but, data->region, event)) {
@@ -4927,19 +4927,19 @@ static int ui_do_but_BLOCK(
 		}
 	}
 	else if (data->state == BUTTON_STATE_WAIT_DRAG) {
-		
+
 		/* this function also ends state */
 		if (ui_but_drag_init(C, but, data, event)) {
 			return WM_UI_HANDLER_BREAK;
 		}
-		
+
 		/* outside icon quit, not needed if drag activated */
 		if (0 == ui_but_contains_point_px_icon(but, data->region, event)) {
 			button_activate_state(C, but, BUTTON_STATE_EXIT);
 			data->cancel = true;
 			return WM_UI_HANDLER_BREAK;
 		}
-		
+
 		if (event->type == LEFTMOUSE && event->val == KM_RELEASE) {
 			button_activate_state(C, but, BUTTON_STATE_MENU_OPEN);
 			return WM_UI_HANDLER_BREAK;
@@ -4958,7 +4958,7 @@ static bool ui_numedit_but_UNITVEC(
 	float dx, dy, rad, radsq, mrad, *fp;
 	int mdx, mdy;
 	bool changed = true;
-	
+
 	/* button is presumed square */
 	/* if mouse moves outside of sphere, it does negative normal */
 
@@ -4968,21 +4968,21 @@ static bool ui_numedit_but_UNITVEC(
 	fp = data->origvec;
 	rad = BLI_rctf_size_x(&but->rect);
 	radsq = rad * rad;
-	
+
 	if (fp[2] > 0.0f) {
 		mdx = (rad * fp[0]);
 		mdy = (rad * fp[1]);
 	}
 	else if (fp[2] > -1.0f) {
 		mrad = rad / sqrtf(fp[0] * fp[0] + fp[1] * fp[1]);
-		
+
 		mdx = 2.0f * mrad * fp[0] - (rad * fp[0]);
 		mdy = 2.0f * mrad * fp[1] - (rad * fp[1]);
 	}
 	else {
 		mdx = mdy = 0;
 	}
-	
+
 	dx = (float)(mx + mdx - data->dragstartx);
 	dy = (float)(my + mdy - data->dragstarty);
 
@@ -4994,12 +4994,12 @@ static bool ui_numedit_but_UNITVEC(
 		fp[2] = sqrtf(radsq - dx * dx - dy * dy);
 	}
 	else {  /* outer circle */
-		
+
 		mrad = rad / sqrtf(mrad);  // veclen
-		
+
 		dx *= (2.0f * mrad - 1.0f);
 		dy *= (2.0f * mrad - 1.0f);
-		
+
 		mrad = dx * dx + dy * dy;
 		if (mrad < radsq) {
 			fp[0] = dx;
@@ -5199,7 +5199,7 @@ static int ui_do_but_UNITVEC(
 			/* also do drag the first time */
 			if (ui_numedit_but_UNITVEC(but, data, mx, my, snap))
 				ui_numedit_apply(C, block, but, data);
-			
+
 			return WM_UI_HANDLER_BREAK;
 		}
 	}
@@ -5217,7 +5217,7 @@ static int ui_do_but_UNITVEC(
 
 		return WM_UI_HANDLER_BREAK;
 	}
-	
+
 	return WM_UI_HANDLER_CONTINUE;
 }
 
@@ -5288,30 +5288,30 @@ static bool ui_numedit_but_HSVCUBE(
 		ui_block_cm_to_display_space_v3(but->block, rgb);
 
 	ui_rgb_to_color_picker_HSVCUBE_compat_v(but, rgb, hsv);
-	
+
 	/* only apply the delta motion, not absolute */
 	if (shift) {
 		rcti rect_i;
 		float xpos, ypos, hsvo[3];
-		
+
 		BLI_rcti_rctf_copy(&rect_i, &but->rect);
-		
+
 		/* calculate original hsv again */
 		copy_v3_v3(rgb, data->origvec);
 		if (use_display_colorspace)
 			ui_block_cm_to_display_space_v3(but->block, rgb);
-		
+
 		copy_v3_v3(hsvo, hsv);
 
 		ui_rgb_to_color_picker_HSVCUBE_compat_v(but, rgb, hsvo);
-		
+
 		/* and original position */
 		ui_hsvcube_pos_from_vals(but, &rect_i, hsvo, &xpos, &ypos);
-		
+
 		mx_fl = xpos - (data->dragstartx - mx_fl);
 		my_fl = ypos - (data->dragstarty - my_fl);
 	}
-	
+
 	/* relative position within box */
 	x = ((float)mx_fl - but->rect.xmin) / BLI_rctf_size_x(&but->rect);
 	y = ((float)my_fl - but->rect.ymin) / BLI_rctf_size_y(&but->rect);
@@ -5428,10 +5428,10 @@ static void ui_ndofedit_but_HSVCUBE(
 		case UI_GRAD_V_ALT:
 		case UI_GRAD_L_ALT:
 			/* vertical 'value' strip */
-			
+
 			/* exception only for value strip - use the range set in but->min/max */
 			hsv[2] += ndof->rvec[0] * sensitivity;
-			
+
 			CLAMP(hsv[2], but->softmin, but->softmax);
 			break;
 		default:
@@ -5481,19 +5481,19 @@ static int ui_do_but_HSVCUBE(
 			/* also do drag the first time */
 			if (ui_numedit_but_HSVCUBE(but, data, mx, my, snap, event->shift != 0))
 				ui_numedit_apply(C, block, but, data);
-			
+
 			return WM_UI_HANDLER_BREAK;
 		}
 #ifdef WITH_INPUT_NDOF
 		else if (event->type == NDOF_MOTION) {
 			const wmNDOFMotionData *ndof = event->customdata;
 			const enum eSnapType snap = ui_event_to_snap(event);
-			
+
 			ui_ndofedit_but_HSVCUBE(but, data, ndof, snap, event->shift != 0);
-			
+
 			button_activate_state(C, but, BUTTON_STATE_EXIT);
 			ui_apply_but(C, but->block, but, data, true);
-			
+
 			return WM_UI_HANDLER_BREAK;
 		}
 #endif /* WITH_INPUT_NDOF */
@@ -5501,9 +5501,9 @@ static int ui_do_but_HSVCUBE(
 		else if (event->type == BACKSPACEKEY && event->val == KM_PRESS) {
 			if (ELEM(but->a1, UI_GRAD_V_ALT, UI_GRAD_L_ALT)) {
 				int len;
-				
+
 				/* reset only value */
-				
+
 				len = RNA_property_array_length(&but->rnapoin, but->rnaprop);
 				if (ELEM(len, 3, 4)) {
 					float rgb[3], def_hsv[3];
@@ -5519,10 +5519,10 @@ static int ui_do_but_HSVCUBE(
 
 					def_hsv[0] = hsv[0];
 					def_hsv[1] = hsv[1];
-					
+
 					ui_color_picker_to_rgb_HSVCUBE_v(but, def_hsv, rgb);
 					ui_but_v3_set(but, rgb);
-					
+
 					RNA_property_update(C, &but->rnapoin, but->rnaprop);
 					return WM_UI_HANDLER_BREAK;
 				}
@@ -5548,7 +5548,7 @@ static int ui_do_but_HSVCUBE(
 		else if (event->type == LEFTMOUSE && event->val != KM_PRESS) {
 			button_activate_state(C, but, BUTTON_STATE_EXIT);
 		}
-		
+
 		return WM_UI_HANDLER_BREAK;
 	}
 
@@ -5569,7 +5569,7 @@ static bool ui_numedit_but_HSVCIRCLE(
 	bool use_display_colorspace = ui_but_is_colorpicker_display_space(but);
 
 	ui_mouse_scale_warp(data, mx, my, &mx_fl, &my_fl, shift);
-	
+
 #ifdef USE_CONT_MOUSE_CORRECT
 	if (ui_but_is_cursor_warp(but)) {
 		/* OK but can go outside bounds */
@@ -5609,7 +5609,7 @@ static bool ui_numedit_but_HSVCIRCLE(
 	/* only apply the delta motion, not absolute */
 	if (shift) {
 		float xpos, ypos, hsvo[3], rgbo[3];
-		
+
 		/* calculate original hsv again */
 		copy_v3_v3(hsvo, hsv);
 		copy_v3_v3(rgbo, data->origvec);
@@ -5623,9 +5623,9 @@ static bool ui_numedit_but_HSVCIRCLE(
 
 		mx_fl = xpos - (data->dragstartx - mx_fl);
 		my_fl = ypos - (data->dragstarty - my_fl);
-		
+
 	}
-	
+
 	ui_hsvcircle_vals_from_pos(hsv, hsv + 1, &rect, mx_fl, my_fl);
 
 	if ((but->flag & UI_BUT_COLOR_CUBIC) && (U.color_picker_type == USER_CP_CIRCLE_HSV))
@@ -5645,10 +5645,10 @@ static bool ui_numedit_but_HSVCIRCLE(
 		ui_block_cm_to_scene_linear_v3(but->block, rgb);
 
 	ui_but_v3_set(but, rgb);
-	
+
 	data->draglastx = mx;
 	data->draglasty = my;
-	
+
 	return changed;
 }
 
@@ -5664,28 +5664,28 @@ static void ui_ndofedit_but_HSVCIRCLE(
 	float rgb[3];
 	float phi, r /*, sqr */ /* UNUSED */, v[2];
 	float sensitivity = (shift ? 0.06f : 0.3f) * ndof->dt;
-	
+
 	ui_but_v3_get(but, rgb);
 	if (use_display_colorspace)
 		ui_block_cm_to_display_space_v3(but->block, rgb);
 	ui_rgb_to_color_picker_compat_v(rgb, hsv);
-	
+
 	/* Convert current color on hue/sat disc to circular coordinates phi, r */
 	phi = fmodf(hsv[0] + 0.25f, 1.0f) * -2.0f * (float)M_PI;
 	r = hsv[1];
 	/* sqr = r > 0.0f ? sqrtf(r) : 1; */ /* UNUSED */
-	
+
 	/* Convert to 2d vectors */
 	v[0] = r * cosf(phi);
 	v[1] = r * sinf(phi);
-	
+
 	/* Use ndof device y and x rotation to move the vector in 2d space */
 	v[0] += ndof->rvec[2] * sensitivity;
 	v[1] += ndof->rvec[0] * sensitivity;
 
 	/* convert back to polar coords on circle */
 	phi = atan2f(v[0], v[1]) / (2.0f * (float)M_PI) + 0.5f;
-	
+
 	/* use ndof Y rotation to additionally rotate hue */
 	phi += ndof->rvec[1] * sensitivity * 0.5f;
 	r = len_v2(v);
@@ -5713,14 +5713,14 @@ static void ui_ndofedit_but_HSVCIRCLE(
 	hsv_clamp_v(hsv, FLT_MAX);
 
 	ui_color_picker_to_rgb_v(hsv, data->vec);
-	
+
 	if ((but->flag & UI_BUT_VEC_SIZE_LOCK) && (data->vec[0] || data->vec[1] || data->vec[2])) {
 		normalize_v3_length(data->vec, but->a2);
 	}
 
 	if (use_display_colorspace)
 		ui_block_cm_to_scene_linear_v3(but->block, data->vec);
-	
+
 	ui_but_v3_set(but, data->vec);
 }
 #endif /* WITH_INPUT_NDOF */
@@ -5735,7 +5735,7 @@ static int ui_do_but_HSVCIRCLE(
 	mx = event->x;
 	my = event->y;
 	ui_window_to_block(data->region, block, &mx, &my);
-	
+
 	if (data->state == BUTTON_STATE_HIGHLIGHT) {
 		if (event->type == LEFTMOUSE && event->val == KM_PRESS) {
 			const enum eSnapType snap = ui_event_to_snap(event);
@@ -5744,52 +5744,52 @@ static int ui_do_but_HSVCIRCLE(
 			data->draglastx = mx;
 			data->draglasty = my;
 			button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
-			
+
 			/* also do drag the first time */
 			if (ui_numedit_but_HSVCIRCLE(but, data, mx, my, snap, event->shift != 0))
 				ui_numedit_apply(C, block, but, data);
-			
+
 			return WM_UI_HANDLER_BREAK;
 		}
 #ifdef WITH_INPUT_NDOF
 		else if (event->type == NDOF_MOTION) {
 			const enum eSnapType snap = ui_event_to_snap(event);
 			const wmNDOFMotionData *ndof = event->customdata;
-			
+
 			ui_ndofedit_but_HSVCIRCLE(but, data, ndof, snap, event->shift != 0);
 
 			button_activate_state(C, but, BUTTON_STATE_EXIT);
 			ui_apply_but(C, but->block, but, data, true);
-			
+
 			return WM_UI_HANDLER_BREAK;
 		}
 #endif /* WITH_INPUT_NDOF */
 		/* XXX hardcoded keymap check.... */
 		else if (event->type == BACKSPACEKEY && event->val == KM_PRESS) {
 			int len;
-			
+
 			/* reset only saturation */
-			
+
 			len = RNA_property_array_length(&but->rnapoin, but->rnaprop);
 			if (len >= 3) {
 				float rgb[3], def_hsv[3];
 				float *def;
 				def = MEM_callocN(sizeof(float) * len, "reset_defaults - float");
-				
+
 				RNA_property_float_get_default_array(&but->rnapoin, but->rnaprop, def);
 				ui_color_picker_to_rgb_v(def, def_hsv);
-				
+
 				ui_but_v3_get(but, rgb);
 				ui_rgb_to_color_picker_compat_v(rgb, hsv);
-				
+
 				def_hsv[0] = hsv[0];
 				def_hsv[2] = hsv[2];
 
 				hsv_to_rgb_v(def_hsv, rgb);
 				ui_but_v3_set(but, rgb);
-				
+
 				RNA_property_update(C, &but->rnapoin, but->rnaprop);
-				
+
 				MEM_freeN(def);
 			}
 			return WM_UI_HANDLER_BREAK;
@@ -5828,7 +5828,7 @@ static int ui_do_but_HSVCIRCLE(
 		}
 		return WM_UI_HANDLER_BREAK;
 	}
-	
+
 	return WM_UI_HANDLER_CONTINUE;
 }
 
@@ -5847,10 +5847,10 @@ static bool ui_numedit_but_COLORBAND(uiBut *but, uiHandleButtonData *data, int m
 	dx = ((float)(mx - data->draglastx)) / BLI_rctf_size_x(&but->rect);
 	data->dragcbd->pos += dx;
 	CLAMP(data->dragcbd->pos, 0.0f, 1.0f);
-	
+
 	BKE_colorband_update_sort(data->coba);
 	data->dragcbd = data->coba->data + data->coba->cur;  /* because qsort */
-	
+
 	data->draglastx = mx;
 	changed = true;
 
@@ -5897,7 +5897,7 @@ static int ui_do_but_COLORBAND(
 						mindist = xco;
 					}
 				}
-		
+
 				data->dragcbd = coba->data + coba->cur;
 				data->dragfstart = data->dragcbd->pos;
 				button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
@@ -5951,10 +5951,10 @@ static bool ui_numedit_but_CURVE(
 	dragx = data->draglastx;
 	dragy = data->draglasty;
 	ui_window_to_block(data->region, block, &dragx, &dragy);
-	
+
 	zoomx = BLI_rctf_size_x(&but->rect) / BLI_rctf_size_x(&cumap->curr);
 	zoomy = BLI_rctf_size_y(&but->rect) / BLI_rctf_size_y(&cumap->curr);
-	
+
 	if (snap) {
 		float d[2];
 
@@ -5993,7 +5993,7 @@ static bool ui_numedit_but_CURVE(
 		}
 
 		curvemapping_changed(cumap, false);
-		
+
 		if (moved_point) {
 			data->draglastx = evtx;
 			data->draglasty = evty;
@@ -6017,7 +6017,7 @@ static bool ui_numedit_but_CURVE(
 	else {
 		fx = (mx - dragx) / zoomx;
 		fy = (my - dragy) / zoomy;
-		
+
 		/* clamp for clip */
 		if (cumap->flag & CUMA_DO_CLIP) {
 			if (cumap->curr.xmin - fx < cumap->clipr.xmin)
@@ -6034,7 +6034,7 @@ static bool ui_numedit_but_CURVE(
 		cumap->curr.ymin -= fy;
 		cumap->curr.xmax -= fx;
 		cumap->curr.ymax -= fy;
-		
+
 		data->draglastx = evtx;
 		data->draglasty = evty;
 
@@ -6056,7 +6056,7 @@ static int ui_do_but_CURVE(
 	mx = event->x;
 	my = event->y;
 	ui_window_to_block(data->region, block, &mx, &my);
-	
+
 	if (data->state == BUTTON_STATE_HIGHLIGHT) {
 		if (event->type == LEFTMOUSE && event->val == KM_PRESS) {
 			CurveMapping *cumap = (CurveMapping *)but->poin;
@@ -6069,7 +6069,7 @@ static int ui_do_but_CURVE(
 			if (event->ctrl) {
 				float f_xy[2];
 				BLI_rctf_transform_pt_v(&cumap->curr, &but->rect, f_xy, m_xy);
-				
+
 				curvemap_insert(cuma, f_xy[0], f_xy[1]);
 				curvemapping_changed(cumap, false);
 				changed = true;
@@ -6091,7 +6091,7 @@ static int ui_do_but_CURVE(
 				int i;
 				float f_xy[2], f_xy_prev[2];
 
-				/* if the click didn't select anything, check if it's clicked on the 
+				/* if the click didn't select anything, check if it's clicked on the
 				 * curve itself, and if so, add a point */
 				cmp = cuma->table;
 
@@ -6112,10 +6112,10 @@ static int ui_do_but_CURVE(
 						curvemapping_changed(cumap, false);
 
 						changed = true;
-						
+
 						/* reset cmp back to the curve points again, rather than drawing segments */
 						cmp = cuma->curve;
-						
+
 						/* find newly added point and make it 'sel' */
 						for (a = 0; a < cuma->totpoint; a++) {
 							if (cmp[a].x == f_xy[0]) {
@@ -6146,7 +6146,7 @@ static int ui_do_but_CURVE(
 			}
 
 			data->dragsel = sel;
-			
+
 			data->dragstartx = event->x;
 			data->dragstarty = event->y;
 			data->draglastx = event->x;
@@ -6159,7 +6159,7 @@ static int ui_do_but_CURVE(
 	else if (data->state == BUTTON_STATE_NUM_EDITING) {
 		if (event->type == MOUSEMOVE) {
 			if (event->x != data->draglastx || event->y != data->draglasty) {
-				
+
 				if (ui_numedit_but_CURVE(block, but, data, event->x, event->y, event->ctrl != 0, event->shift != 0))
 					ui_numedit_apply(C, block, but, data);
 			}
@@ -6220,11 +6220,11 @@ static int ui_do_but_HISTOGRAM(
         uiHandleButtonData *data, const wmEvent *event)
 {
 	int mx, my;
-	
+
 	mx = event->x;
 	my = event->y;
 	ui_window_to_block(data->region, block, &mx, &my);
-	
+
 	if (data->state == BUTTON_STATE_HIGHLIGHT) {
 		if (event->type == LEFTMOUSE && event->val == KM_PRESS) {
 			data->dragstartx = mx;
@@ -6232,18 +6232,18 @@ static int ui_do_but_HISTOGRAM(
 			data->draglastx = mx;
 			data->draglasty = my;
 			button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
-			
+
 			/* also do drag the first time */
 			if (ui_numedit_but_HISTOGRAM(but, data, mx, my))
 				ui_numedit_apply(C, block, but, data);
-			
+
 			return WM_UI_HANDLER_BREAK;
 		}
 		/* XXX hardcoded keymap check.... */
 		else if (event->type == BACKSPACEKEY && event->val == KM_PRESS) {
 			Histogram *hist = (Histogram *)but->poin;
 			hist->ymax = 1.f;
-			
+
 			button_activate_state(C, but, BUTTON_STATE_EXIT);
 			return WM_UI_HANDLER_BREAK;
 		}
@@ -6267,7 +6267,7 @@ static int ui_do_but_HISTOGRAM(
 		}
 		return WM_UI_HANDLER_BREAK;
 	}
-	
+
 	return WM_UI_HANDLER_CONTINUE;
 }
 
@@ -6438,7 +6438,7 @@ static void but_shortcut_name_func(bContext *C, void *arg1, int UNUSED(event))
 		char shortcut_str[128];
 
 		IDProperty *prop = (but->opptr) ? but->opptr->data : NULL;
-		
+
 		/* complex code to change name of button */
 		if (WM_key_event_operator_string(
 		        C, but->optype->idname, but->opcontext, prop, true,
@@ -6469,18 +6469,18 @@ static uiBlock *menu_change_shortcut(bContext *C, ARegion *ar, void *arg)
 	BLI_assert(kmi != NULL);
 
 	RNA_pointer_create(&wm->id, &RNA_KeyMapItem, kmi, &ptr);
-	
+
 	block = UI_block_begin(C, ar, "_popup", UI_EMBOSS);
 	UI_block_func_handle_set(block, but_shortcut_name_func, but);
 	UI_block_flag_enable(block, UI_BLOCK_MOVEMOUSE_QUIT);
 	UI_block_direction_set(block, UI_DIR_CENTER_Y);
-	
+
 	layout = UI_block_layout(block, UI_LAYOUT_VERTICAL, UI_LAYOUT_PANEL, 0, 0, 200, 20, 0, style);
-	
+
 	uiItemR(layout, &ptr, "type", UI_ITEM_R_FULL_EVENT | UI_ITEM_R_IMMEDIATE, "", ICON_NONE);
-	
+
 	UI_block_bounds_set_popup(block, 6, -50, 26);
-	
+
 	return block;
 }
 
@@ -6500,7 +6500,7 @@ static uiBlock *menu_add_shortcut(bContext *C, ARegion *ar, void *arg)
 	uiStyle *style = UI_style_get_dpi();
 	IDProperty *prop = (but->opptr) ? but->opptr->data : NULL;
 	int kmi_id;
-	
+
 	/* XXX this guess_opname can potentially return a different keymap than being found on adding later... */
 	km = WM_keymap_guess_opname(C, but->optype->idname);
 	kmi = WM_keymap_add_item(km, but->optype->idname, AKEY, KM_PRESS, 0, 0);
@@ -6526,7 +6526,7 @@ static uiBlock *menu_add_shortcut(bContext *C, ARegion *ar, void *arg)
 	layout = UI_block_layout(block, UI_LAYOUT_VERTICAL, UI_LAYOUT_PANEL, 0, 0, 200, 20, 0, style);
 
 	uiItemR(layout, &ptr, "type", UI_ITEM_R_FULL_EVENT | UI_ITEM_R_IMMEDIATE, "", ICON_NONE);
-	
+
 	UI_block_bounds_set_popup(block, 6, -50, 26);
 
 #ifdef USE_KEYMAP_ADD_HACK
@@ -6575,7 +6575,7 @@ static void remove_shortcut_func(bContext *C, void *arg1, void *UNUSED(arg2))
 	BLI_assert(kmi != NULL);
 
 	WM_keymap_remove_item(km, kmi);
-	
+
 	but_shortcut_name_func(C, but, 0);
 }
 
@@ -6667,7 +6667,7 @@ static bool ui_but_menu(bContext *C, uiBut *but)
 	if (but->type == UI_BTYPE_IMAGE) {
 		return false;
 	}
-	
+
 	/* highly unlikely getting the label ever fails */
 	UI_but_string_info_get(C, but, &label, NULL);
 
@@ -6698,7 +6698,7 @@ static bool ui_but_menu(bContext *C, uiBut *but)
 		/* determine if we can key a single component of an array */
 		is_array = RNA_property_array_length(&but->rnapoin, but->rnaprop) != 0;
 		is_array_component = (is_array && but->rnaindex != -1);
-		
+
 		/* Keyframes */
 		if (but->flag & UI_BUT_ANIMATED_KEY) {
 			/* replace/delete keyfraemes */
@@ -6718,11 +6718,11 @@ static bool ui_but_menu(bContext *C, uiBut *but)
 				uiItemBooleanO(layout, CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Delete Keyframe"),
 				               ICON_NONE, "ANIM_OT_keyframe_delete_button", "all", 1);
 			}
-			
+
 			/* keyframe settings */
 			uiItemS(layout);
-			
-			
+
+
 		}
 		else if (but->flag & UI_BUT_DRIVEN) {
 			/* pass */
@@ -6739,7 +6739,7 @@ static bool ui_but_menu(bContext *C, uiBut *but)
 				               ICON_KEY_HLT, "ANIM_OT_keyframe_insert_button", "all", 1);
 			}
 		}
-		
+
 		if ((but->flag & UI_BUT_ANIMATED) && (but->rnapoin.type != &RNA_NlaStrip)) {
 			if (is_array_component) {
 				uiItemBooleanO(layout, CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Clear Keyframes"),
@@ -6774,7 +6774,7 @@ static bool ui_but_menu(bContext *C, uiBut *but)
 				uiItemO(layout, CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Paste Driver"),
 				        ICON_NONE, "ANIM_OT_paste_driver_button");
 			}
-			
+
 			uiItemO(layout, CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Open Drivers Editor"),
 			        ICON_DRIVER, "SCREEN_OT_drivers_editor_show");
 		}
@@ -6785,13 +6785,13 @@ static bool ui_but_menu(bContext *C, uiBut *but)
 			uiItemS(layout);
 
 			if (is_array_component) {
-				uiItemMenuEnumO(layout, C, "ANIM_OT_driver_button_add", "mapping_type", 
-				                CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Add Drivers"), 
+				uiItemMenuEnumO(layout, C, "ANIM_OT_driver_button_add", "mapping_type",
+				                CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Add Drivers"),
 				                ICON_DRIVER);
 			}
 			else {
-				uiItemMenuEnumO(layout, C, "ANIM_OT_driver_button_add", "mapping_type", 
-				                CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Add Driver"), 
+				uiItemMenuEnumO(layout, C, "ANIM_OT_driver_button_add", "mapping_type",
+				                CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Add Driver"),
 				                ICON_DRIVER);
 			}
 
@@ -6799,11 +6799,11 @@ static bool ui_but_menu(bContext *C, uiBut *but)
 				uiItemO(layout, CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Paste Driver"),
 				        ICON_NONE, "ANIM_OT_paste_driver_button");
 			}
-			
+
 			uiItemO(layout, CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Open Drivers Editor"),
 			        ICON_NONE, "SCREEN_OT_drivers_editor_show");
 		}
-		
+
 		/* Keying Sets */
 		/* TODO: check on modifyability of Keying Set when doing this */
 		if (is_anim) {
@@ -6879,7 +6879,7 @@ static bool ui_but_menu(bContext *C, uiBut *but)
 
 		/* Copy Property Value
 		 * Paste Property Value */
-		
+
 		if (is_array_component) {
 			uiItemBooleanO(layout, CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Reset All to Default Values"),
 			               ICON_LOOP_BACK, "UI_OT_reset_default_button", "all", 1);
@@ -6894,7 +6894,7 @@ static bool ui_but_menu(bContext *C, uiBut *but)
 			uiItemO(layout, CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Unset"),
 			        ICON_NONE, "UI_OT_unset_property_button");
 		}
-		
+
 		if (is_array_component) {
 			uiItemBooleanO(layout, CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Copy All To Selected"),
 			               ICON_NONE, "UI_OT_copy_to_selected_button", "all", true);
@@ -7382,7 +7382,7 @@ bool UI_but_active_drop_name(bContext *C)
 		if (ELEM(but->type, UI_BTYPE_TEXT, UI_BTYPE_SEARCH_MENU))
 			return 1;
 	}
-	
+
 	return 0;
 }
 
@@ -7424,11 +7424,11 @@ static bool ui_region_contains_point_px(ARegion *ar, int x, int y)
 	if (!BLI_rcti_isect_pt(&winrct, x, y)) {
 		for (uiBlock *block = ar->uiblocks.first; block; block = block->next)
 			block->auto_open = false;
-		
+
 		return false;
 	}
 
-	/* also, check that with view2d, that the mouse is not over the scrollbars 
+	/* also, check that with view2d, that the mouse is not over the scrollbars
 	 * NOTE: care is needed here, since the mask rect may include the scrollbars
 	 * even when they are not visible, so we need to make a copy of the mask to
 	 * use to check
@@ -7436,7 +7436,7 @@ static bool ui_region_contains_point_px(ARegion *ar, int x, int y)
 	if (ar->v2d.mask.xmin != ar->v2d.mask.xmax) {
 		View2D *v2d = &ar->v2d;
 		int mx, my;
-		
+
 		/* convert window coordinates to region coordinates */
 		mx = x;
 		my = y;
@@ -7447,7 +7447,7 @@ static bool ui_region_contains_point_px(ARegion *ar, int x, int y)
 			return false;
 		}
 	}
-	
+
 	return true;
 }
 
@@ -7471,7 +7471,7 @@ static bool ui_but_contains_point_px(ARegion *ar, uiBut *but, int x, int y)
 	else if (!ui_but_contains_pt(but, mx, my)) {
 		return false;
 	}
-	
+
 	return true;
 }
 
@@ -7696,7 +7696,7 @@ static void button_activate_state(bContext *C, uiBut *but, uiHandleButtonState s
 		but->flag |= UI_SELECT;
 		UI_but_tooltip_timer_remove(C, but);
 	}
-	
+
 	/* text editing */
 	if (state == BUTTON_STATE_TEXT_EDITING && data->state != BUTTON_STATE_TEXT_SELECTING)
 		ui_textedit_begin(C, but, data);
@@ -7704,7 +7704,7 @@ static void button_activate_state(bContext *C, uiBut *but, uiHandleButtonState s
 		ui_textedit_end(C, but, data);
 	else if (data->state == BUTTON_STATE_TEXT_SELECTING && state != BUTTON_STATE_TEXT_EDITING)
 		ui_textedit_end(C, but, data);
-	
+
 	/* number editing */
 	if (state == BUTTON_STATE_NUM_EDITING) {
 		if (ui_but_is_cursor_warp(but))
@@ -7781,7 +7781,7 @@ static void button_activate_state(bContext *C, uiBut *but, uiHandleButtonState s
 			}
 		}
 	}
-	
+
 	/* wait for mousemove to enable drag */
 	if (state == BUTTON_STATE_WAIT_DRAG) {
 		but->flag &= ~UI_SELECT;
@@ -7825,7 +7825,7 @@ static void button_activate_init(bContext *C, ARegion *ar, uiBut *but, uiButtonA
 			data->interactive = true;
 		}
 	}
-	
+
 	data->state = BUTTON_STATE_INIT;
 
 	/* activate button */
@@ -7843,14 +7843,14 @@ static void button_activate_init(bContext *C, ARegion *ar, uiBut *but, uiButtonA
 		data->used_mouse = true;
 	}
 	button_activate_state(C, but, BUTTON_STATE_HIGHLIGHT);
-	
+
 	/* activate right away */
 	if (but->flag & UI_BUT_IMMEDIATE) {
 		if (but->type == UI_BTYPE_HOTKEY_EVENT)
 			button_activate_state(C, but, BUTTON_STATE_WAIT_KEY_EVENT);
 		/* .. more to be added here */
 	}
-	
+
 	if (type == BUTTON_ACTIVATE_OPEN) {
 		button_activate_state(C, but, BUTTON_STATE_MENU_OPEN);
 
@@ -7859,7 +7859,7 @@ static void button_activate_init(bContext *C, ARegion *ar, uiBut *but, uiButtonA
 			ARegion *subar = data->menu->region;
 			uiBlock *subblock = subar->uiblocks.first;
 			uiBut *subbut;
-			
+
 			if (subblock) {
 				subbut = ui_but_first(subblock);
 
@@ -8167,7 +8167,7 @@ void UI_context_update_anim_flag(const bContext *C)
 				ui_but_anim_flag(but, (scene) ? scene->r.cfra : 0.0f);
 				ui_but_override_flag(but);
 				ED_region_tag_redraw(ar);
-				
+
 				if (but->active) {
 					activebut = but;
 				}
@@ -8200,7 +8200,7 @@ static uiBut *ui_but_find_open_event(ARegion *ar, const wmEvent *event)
 {
 	uiBlock *block;
 	uiBut *but;
-	
+
 	for (block = ar->uiblocks.first; block; block = block->next) {
 		for (but = block->buttons.first; but; but = but->next)
 			if (but == event->customdata)
@@ -8240,15 +8240,15 @@ void ui_but_activate_event(bContext *C, ARegion *ar, uiBut *but)
 {
 	wmWindow *win = CTX_wm_window(C);
 	wmEvent event;
-	
+
 	button_activate_init(C, ar, but, BUTTON_ACTIVATE_OVER);
-	
+
 	wm_event_init_from_window(win, &event);
 	event.type = EVT_BUT_OPEN;
 	event.val = KM_PRESS;
 	event.customdata = but;
 	event.customdatafree = false;
-	
+
 	ui_do_button(C, but->block, but, &event);
 }
 
@@ -8346,7 +8346,7 @@ static int ui_handle_button_event(bContext *C, const wmEvent *event, uiBut *but)
 	ar = data->region;
 
 	retval = WM_UI_HANDLER_CONTINUE;
-	
+
 	if (data->state == BUTTON_STATE_HIGHLIGHT) {
 		switch (event->type) {
 			case WINDEACTIVATE:
@@ -8524,7 +8524,7 @@ static int ui_handle_button_event(bContext *C, const wmEvent *event, uiBut *but)
 				}
 
 				bt = ui_but_find_mouse_over(ar, event);
-				
+
 				if (bt && bt->active != data) {
 					if (but->type != UI_BTYPE_COLOR) {  /* exception */
 						data->cancel = true;
@@ -8753,7 +8753,7 @@ static void ui_handle_button_return_submenu(bContext *C, const wmEvent *event, u
 
 		menu->menuretval = 0;
 	}
-	
+
 	/* now change button state or exit, which will close the submenu */
 	if ((menu->menuretval & UI_RETURN_OK) || (menu->menuretval & UI_RETURN_CANCEL)) {
 		if (menu->menuretval != UI_RETURN_OK)
@@ -8864,7 +8864,7 @@ static bool ui_mouse_motion_towards_check(
 
 	p2[0] = rect_px.xmax + margin;
 	p2[1] = rect_px.ymin - margin;
-	
+
 	p3[0] = rect_px.xmax + margin;
 	p3[1] = rect_px.ymax + margin;
 
@@ -8922,7 +8922,7 @@ static bool ui_mouse_motion_keynav_test(struct uiKeyNavLock *keynav, const wmEve
 static char ui_menu_scroll_test(uiBlock *block, int my)
 {
 	if (block->flag & (UI_BLOCK_CLIPTOP | UI_BLOCK_CLIPBOTTOM)) {
-		if (block->flag & UI_BLOCK_CLIPTOP) 
+		if (block->flag & UI_BLOCK_CLIPTOP)
 			if (my > block->rect.ymax - UI_MENU_SCROLL_MOUSE)
 				return 't';
 		if (block->flag & UI_BLOCK_CLIPBOTTOM)
@@ -8991,12 +8991,12 @@ static int ui_menu_scroll(ARegion *ar, uiBlock *block, int my, uiBut *to_bt)
 
 		/* set flags again */
 		ui_popup_block_scrolltest(block);
-		
+
 		ED_region_tag_redraw(ar);
-		
+
 		return 1;
 	}
-	
+
 	return 0;
 }
 
@@ -9161,14 +9161,14 @@ static int ui_handle_menu_event(
 			if (block->flag & UI_BLOCK_MOVEMOUSE_QUIT) {
 				ui_mouse_motion_towards_init(menu, &event->x);
 			}
-			
+
 			/* add menu scroll timer, if needed */
 			if (ui_menu_scroll_test(block, my))
 				if (menu->scrolltimer == NULL)
 					menu->scrolltimer =
 					    WM_event_add_timer(CTX_wm_manager(C), CTX_wm_window(C), TIMER, MENU_SCROLL_INTERVAL);
 		}
-		
+
 		/* first block own event func */
 		if (block->block_event_func && block->block_event_func(C, block, event)) {
 			/* pass */
@@ -9208,7 +9208,7 @@ static int ui_handle_menu_event(
 
 					retval = WM_UI_HANDLER_BREAK;
 					break;
-				
+
 				case UPARROWKEY:
 				case DOWNARROWKEY:
 				case WHEELUPMOUSE:
@@ -9221,11 +9221,11 @@ static int ui_handle_menu_event(
 					else if (inside || (block->flag & UI_BLOCK_LOOP)) {
 						int type = event->type;
 						int val = event->val;
-						
+
 						/* convert pan to scrollwheel */
 						if (type == MOUSEPAN)
 							ui_pan_to_scroll(event, &type, &val);
-						
+
 						if (val == KM_PRESS) {
 							const bool is_next =
 							        (ELEM(type, DOWNARROWKEY, WHEELDOWNMOUSE) ==
@@ -9296,10 +9296,10 @@ static int ui_handle_menu_event(
 						count = 0;
 						for (but = block->buttons.first; but; but = but->next) {
 							bool doit = false;
-							
+
 							if (!ELEM(but->type, UI_BTYPE_LABEL, UI_BTYPE_SEPR, UI_BTYPE_SEPR_LINE))
 								count++;
-							
+
 							/* exception for rna layer buts */
 							if (but->rnapoin.data && but->rnaprop &&
 							    ELEM(RNA_property_subtype(but->rnaprop), PROP_LAYER, PROP_LAYER_MEMBER))
@@ -9399,7 +9399,7 @@ static int ui_handle_menu_event(
 				}
 			}
 		}
-		
+
 		/* here we check return conditions for menus */
 		if (block->flag & UI_BLOCK_LOOP) {
 			/* if we click outside the block, verify if we clicked on the
@@ -9479,7 +9479,7 @@ static int ui_handle_menu_event(
 					uiSafetyRct *saferct;
 
 					ui_mouse_motion_towards_check(block, menu, &event->x, is_parent_inside == false);
-					
+
 					/* check for all parent rects, enables arrowkeys to be used */
 					for (saferct = block->saferct.first; saferct; saferct = saferct->next) {
 						/* for mouse move we only check our own rect, for other
@@ -10075,7 +10075,7 @@ static int ui_region_handler(bContext *C, const wmEvent *event, void *UNUSED(use
 	/* re-enable tooltips */
 	if (event->type == MOUSEMOVE && (event->x != event->prevx || event->y != event->prevy))
 		ui_blocks_set_tooltips(ar, true);
-	
+
 	/* delayed apply callbacks */
 	ui_apply_but_funcs_after(C);
 
@@ -10091,7 +10091,7 @@ static void ui_region_handler_remove(bContext *C, void *UNUSED(userdata))
 	if (ar == NULL) return;
 
 	UI_blocklist_free(C, &ar->uiblocks);
-	
+
 	sc = CTX_wm_screen(C);
 	if (sc == NULL) return;
 
@@ -10227,7 +10227,7 @@ static int ui_popup_handler(bContext *C, const wmEvent *event, void *userdata)
 			win->last_pie_event = block->pie_data.event;
 			reset_pie = true;
 		}
-		
+
 		ui_popup_block_free(C, menu);
 		UI_popup_handlers_remove(&win->modalhandlers, menu);
 		CTX_wm_menu_set(C, NULL);
@@ -10337,7 +10337,7 @@ bool UI_textbutton_activate_rna(
 {
 	uiBlock *block;
 	uiBut *but = NULL;
-	
+
 	for (block = ar->uiblocks.first; block; block = block->next) {
 		for (but = block->buttons.first; but; but = but->next) {
 			if (but->type == UI_BTYPE_TEXT) {
@@ -10351,7 +10351,7 @@ bool UI_textbutton_activate_rna(
 		if (but)
 			break;
 	}
-	
+
 	if (but) {
 		UI_but_active_only(C, ar, block, but);
 		return true;
@@ -10366,7 +10366,7 @@ bool UI_textbutton_activate_but(const bContext *C, uiBut *actbut)
 	ARegion *ar = CTX_wm_region(C);
 	uiBlock *block;
 	uiBut *but = NULL;
-	
+
 	for (block = ar->uiblocks.first; block; block = block->next) {
 		for (but = block->buttons.first; but; but = but->next)
 			if (but == actbut && but->type == UI_BTYPE_TEXT)
@@ -10375,7 +10375,7 @@ bool UI_textbutton_activate_but(const bContext *C, uiBut *actbut)
 		if (but)
 			break;
 	}
-	
+
 	if (but) {
 		UI_but_active_only(C, ar, block, but);
 		return true;
diff --git a/source/blender/editors/interface/interface_icons.c b/source/blender/editors/interface/interface_icons.c
index df3846b7c6b..51c3cff721a 100644
--- a/source/blender/editors/interface/interface_icons.c
+++ b/source/blender/editors/interface/interface_icons.c
@@ -133,7 +133,7 @@ typedef struct IconTexture {
 } IconTexture;
 
 /* ******************* STATIC LOCAL VARS ******************* */
-/* static here to cache results of icon directory scan, so it's not 
+/* static here to cache results of icon directory scan, so it's not
  * scanning the filesystem each time the menu is drawn */
 static struct ListBase iconfilelist = {NULL, NULL};
 static IconTexture icongltex = {0, 0, 0, 0.0f, 0.0f};
@@ -170,9 +170,9 @@ static DrawInfo *def_internal_icon(ImBuf *bbuf, int icon_id, int xofs, int yofs,
 		/* icon buffers can get initialized runtime now, via datatoc */
 		if (bbuf) {
 			int y, imgsize;
-			
+
 			iimg->rect = MEM_mallocN(size * size * sizeof(unsigned int), "icon_rect");
-			
+
 			/* Here we store the rect in the icon - same as before */
 			if (size == bbuf->x && size == bbuf->y && xofs == 0 && yofs == 0)
 				memcpy(iimg->rect, bbuf->rect, size * size * sizeof(int));
@@ -191,7 +191,7 @@ static DrawInfo *def_internal_icon(ImBuf *bbuf, int icon_id, int xofs, int yofs,
 	new_icon->drawinfo = di;
 
 	BKE_icon_set(icon_id, new_icon);
-	
+
 	return di;
 }
 
@@ -255,10 +255,10 @@ static void vicon_keytype_draw_wrapper(int x, int y, int w, int h, float alpha,
 	 * (since we're doing this offscreen, free from any particular space_id)
 	 */
 	struct bThemeState theme_state;
-	
+
 	UI_Theme_Store(&theme_state);
 	UI_SetTheme(SPACE_ACTION, RGN_TYPE_WINDOW);
-	
+
 	/* the "x" and "y" given are the bottom-left coordinates of the icon,
 	 * while the draw_keyframe_shape() function needs the midpoint for
 	 * the keyframe
@@ -353,7 +353,7 @@ static void vicon_colorset_draw(int index, int x, int y, int w, int h, float UNU
 	{                                                                                 \
 		vicon_colorset_draw(index, x, y, w, h, alpha);                                \
 	}
-	
+
 DEF_VICON_COLORSET_DRAW_NTH(01, 0)
 DEF_VICON_COLORSET_DRAW_NTH(02, 1)
 DEF_VICON_COLORSET_DRAW_NTH(03, 2)
@@ -437,14 +437,14 @@ static void icon_verify_datatoc(IconImage *iimg)
 	/* if it has own rect, things are all OK */
 	if (iimg->rect)
 		return;
-	
+
 	if (iimg->datatoc_rect) {
 		ImBuf *bbuf = IMB_ibImageFromMemory(iimg->datatoc_rect,
 		                                    iimg->datatoc_size, IB_rect, NULL, "<matcap icon>");
 		/* w and h were set on initialize */
 		if (bbuf->x != iimg->h && bbuf->y != iimg->w)
 			IMB_scaleImBuf(bbuf, iimg->w, iimg->h);
-		
+
 		iimg->rect = bbuf->rect;
 		bbuf->rect = NULL;
 		IMB_freeImBuf(bbuf);
@@ -504,7 +504,7 @@ static void init_internal_icons(void)
 	if ((btheme != NULL) && btheme->tui.iconfile[0]) {
 		char *icondir = BKE_appdir_folder_id(BLENDER_DATAFILES, "icons");
 		char iconfilestr[FILE_MAX];
-		
+
 		if (icondir) {
 			BLI_join_dirfile(iconfilestr, sizeof(iconfilestr), icondir, btheme->tui.iconfile);
 			bbuf = IMB_loadiffname(iconfilestr, IB_rect, NULL); /* if the image is missing bbuf will just be NULL */
@@ -530,7 +530,7 @@ static void init_internal_icons(void)
 		                               datatoc_blender_icons32_png_size, IB_rect, NULL, "<blender icons>");
 	if (b32buf)
 		IMB_premultiply_alpha(b32buf);
-	
+
 	if (b16buf && b32buf) {
 		/* free existing texture if any */
 		if (icongltex.id) {
@@ -548,17 +548,17 @@ static void init_internal_icons(void)
 
 			if (icongltex.id) {
 				int level = 2;
-				
+
 				icongltex.w = b32buf->x;
 				icongltex.h = b32buf->y;
 				icongltex.invw = 1.0f / b32buf->x;
 				icongltex.invh = 1.0f / b32buf->y;
 
 				glBindTexture(GL_TEXTURE_2D, icongltex.id);
-				
+
 				glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, b32buf->x, b32buf->y, 0, GL_RGBA, GL_UNSIGNED_BYTE, b32buf->rect);
 				glTexImage2D(GL_TEXTURE_2D, 1, GL_RGBA8, b16buf->x, b16buf->y, 0, GL_RGBA, GL_UNSIGNED_BYTE, b16buf->rect);
-				
+
 				while (b16buf->x > 1) {
 					ImBuf *nbuf = IMB_onehalf(b16buf);
 					glTexImage2D(GL_TEXTURE_2D, level, GL_RGBA8, nbuf->x, nbuf->y, 0, GL_RGBA, GL_UNSIGNED_BYTE, nbuf->rect);
@@ -566,10 +566,10 @@ static void init_internal_icons(void)
 					IMB_freeImBuf(b16buf);
 					b16buf = nbuf;
 				}
-				
+
 				glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 				glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-				
+
 				glBindTexture(GL_TEXTURE_2D, 0);
 			}
 		}
@@ -579,7 +579,7 @@ static void init_internal_icons(void)
 		icontype = ICON_TYPE_TEXTURE;
 	else
 		icontype = ICON_TYPE_BUFFER;
-	
+
 	if (b32buf) {
 		for (y = 0; y < ICON_GRID_ROWS; y++) {
 			for (x = 0; x < ICON_GRID_COLS; x++) {
@@ -592,13 +592,13 @@ static void init_internal_icons(void)
 	}
 
 	def_internal_vicon(VICO_SMALL_TRI_RIGHT_VEC, vicon_small_tri_right_draw);
-	
+
 	def_internal_vicon(VICO_KEYTYPE_KEYFRAME_VEC, vicon_keytype_keyframe_draw);
 	def_internal_vicon(VICO_KEYTYPE_BREAKDOWN_VEC, vicon_keytype_breakdown_draw);
 	def_internal_vicon(VICO_KEYTYPE_EXTREME_VEC, vicon_keytype_extreme_draw);
 	def_internal_vicon(VICO_KEYTYPE_JITTER_VEC, vicon_keytype_jitter_draw);
 	def_internal_vicon(VICO_KEYTYPE_MOVING_HOLD_VEC, vicon_keytype_moving_hold_draw);
-	
+
 	def_internal_vicon(VICO_COLORSET_01_VEC, vicon_colorset_draw_01);
 	def_internal_vicon(VICO_COLORSET_02_VEC, vicon_colorset_draw_02);
 	def_internal_vicon(VICO_COLORSET_03_VEC, vicon_colorset_draw_03);
@@ -622,7 +622,7 @@ static void init_internal_icons(void)
 
 	IMB_freeImBuf(b16buf);
 	IMB_freeImBuf(b32buf);
-	
+
 }
 #endif  /* WITH_HEADLESS */
 
@@ -638,13 +638,13 @@ static void init_iconfile_list(struct ListBase *list)
 
 	if (icondir == NULL)
 		return;
-	
+
 	totfile = BLI_filelist_dir_contents(icondir, &dir);
 
 	for (i = 0; i < totfile; i++) {
 		if ((dir[i].type & S_IFREG)) {
 			const char *filename = dir[i].relname;
-			
+
 			if (BLI_testextensie(filename, ".png")) {
 				/* loading all icons on file start is overkill & slows startup
 				 * its possible they change size after blender load anyway. */
@@ -666,7 +666,7 @@ static void init_iconfile_list(struct ListBase *list)
 				else {
 					ifilex = ifiley = 0;
 				}
-				
+
 				/* bad size or failed to load */
 				if ((ifilex != ICON_IMAGE_W) || (ifiley != ICON_IMAGE_H)) {
 					printf("icon '%s' is wrong size %dx%d\n", iconfilestr, ifilex, ifiley);
@@ -676,12 +676,12 @@ static void init_iconfile_list(struct ListBase *list)
 
 				/* found a potential icon file, so make an entry for it in the cache list */
 				ifile = MEM_callocN(sizeof(IconFile), "IconFile");
-				
+
 				BLI_strncpy(ifile->filename, filename, sizeof(ifile->filename));
 				ifile->index = index;
 
 				BLI_addtail(list, ifile);
-				
+
 				index++;
 			}
 		}
@@ -694,7 +694,7 @@ static void init_iconfile_list(struct ListBase *list)
 static void free_iconfile_list(struct ListBase *list)
 {
 	IconFile *ifile = NULL, *next_ifile = NULL;
-	
+
 	for (ifile = list->first; ifile; ifile = next_ifile) {
 		next_ifile = ifile->next;
 		BLI_freelinkN(list, ifile);
@@ -707,20 +707,20 @@ int UI_iconfile_get_index(const char *filename)
 {
 	IconFile *ifile;
 	ListBase *list = &(iconfilelist);
-	
+
 	for (ifile = list->first; ifile; ifile = ifile->next) {
 		if (BLI_path_cmp(filename, ifile->filename) == 0) {
 			return ifile->index;
 		}
 	}
-	
+
 	return 0;
 }
 
 ListBase *UI_iconfile_list(void)
 {
 	ListBase *list = &(iconfilelist);
-	
+
 	return list;
 }
 
@@ -811,13 +811,13 @@ int UI_icon_get_width(int icon_id)
 	DrawInfo *di = NULL;
 
 	icon = BKE_icon_get(icon_id);
-	
+
 	if (icon == NULL) {
 		if (G.debug & G_DEBUG)
 			printf("%s: Internal error, no icon for icon ID: %d\n", __func__, icon_id);
 		return 0;
 	}
-	
+
 	di = icon_ensure_drawinfo(icon);
 	if (di) {
 		return ICON_DEFAULT_WIDTH;
@@ -955,7 +955,7 @@ static void icon_set_image(
 PreviewImage *UI_icon_to_preview(int icon_id)
 {
 	Icon *icon = BKE_icon_get(icon_id);
-	
+
 	if (icon) {
 		DrawInfo *di = (DrawInfo *)icon->drawinfo;
 		if (di) {
@@ -1225,10 +1225,10 @@ static void icon_draw_size(
 	IconImage *iimg;
 	const float fdraw_size = (float)draw_size;
 	int w, h;
-	
+
 	icon = BKE_icon_get(icon_id);
 	alpha *= btheme->tui.icon_alpha;
-	
+
 	if (icon == NULL) {
 		if (G.debug & G_DEBUG)
 			printf("%s: Internal error, no icon for icon ID: %d\n", __func__, icon_id);
@@ -1304,7 +1304,7 @@ static void icon_draw_size(
 		if (pi) {
 			/* no create icon on this level in code */
 			if (!pi->rect[size]) return;  /* something has gone wrong! */
-			
+
 			/* preview images use premul alpha ... */
 			glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
 
@@ -1341,10 +1341,10 @@ static void ui_id_icon_render(const bContext *C, ID *id, bool use_jobs)
 {
 	PreviewImage *pi = BKE_previewimg_id_ensure(id);
 	enum eIconSizes i;
-	
+
 	if (!pi)
 		return;
-	
+
 	for (i = 0; i < NUM_ICON_SIZES; i++) {
 		/* check if rect needs to be created; changed
 		 * only set by dynamic icons */
@@ -1435,7 +1435,7 @@ static int ui_id_screen_get_icon(const bContext *C, ID *id)
 int ui_id_icon_get(const bContext *C, ID *id, const bool big)
 {
 	int iconid = 0;
-	
+
 	/* icon */
 	switch (GS(id->name)) {
 		case ID_BR:
diff --git a/source/blender/editors/interface/interface_intern.h b/source/blender/editors/interface/interface_intern.h
index e1fe64c1e35..b851d1d8c5b 100644
--- a/source/blender/editors/interface/interface_intern.h
+++ b/source/blender/editors/interface/interface_intern.h
@@ -75,19 +75,19 @@ typedef enum {
 	UI_WTYPE_TOOLBAR_ITEM,
 	UI_WTYPE_TAB,
 	UI_WTYPE_TOOLTIP,
-	
+
 	/* strings */
 	UI_WTYPE_NAME,
 	UI_WTYPE_NAME_LINK,
 	UI_WTYPE_POINTER_LINK,
 	UI_WTYPE_FILENAME,
-	
+
 	/* menus */
 	UI_WTYPE_MENU_RADIO,
 	UI_WTYPE_MENU_ICON_RADIO,
 	UI_WTYPE_MENU_POINTER_LINK,
 	UI_WTYPE_MENU_NODE_LINK,
-	
+
 	UI_WTYPE_PULLDOWN,
 	UI_WTYPE_MENU_ITEM,
 	UI_WTYPE_MENU_ITEM_RADIAL,
@@ -245,7 +245,7 @@ struct uiBut {
 
 	uiButCompleteFunc autocomplete_func;
 	void *autofunc_arg;
-	
+
 	uiButSearchCreateFunc search_create_func;
 	uiButSearchFunc search_func;
 	bool free_search_arg;
@@ -302,7 +302,7 @@ struct uiBut {
 	void *dragpoin;
 	struct ImBuf *imb;
 	float imb_scale;
-	
+
 	/* active button data */
 	struct uiHandleButtonData *active;
 
@@ -314,7 +314,7 @@ struct uiBut {
 	float *editvec;
 	void *editcoba;
 	void *editcumap;
-	
+
 	/* pointer back */
 	uiBlock *block;
 };
@@ -362,9 +362,9 @@ struct uiBlock {
 	struct uiLayout *curlayout;
 
 	ListBase contexts;
-	
+
 	char name[UI_MAX_NAME_STR];
-	
+
 	float winmat[4][4];
 
 	rctf rect;
@@ -384,10 +384,10 @@ struct uiBlock {
 
 	uiBlockHandleFunc handle_func;
 	void *handle_func_arg;
-	
+
 	/* custom extra handling */
 	int (*block_event_func)(const struct bContext *C, struct uiBlock *, const struct wmEvent *);
-	
+
 	/* extra draw function for custom blocks */
 	void (*drawextra)(const struct bContext *C, void *idv, void *arg1, void *arg2, rcti *rect);
 	void *drawextra_arg1;
@@ -545,7 +545,7 @@ struct uiPopupBlockHandle {
 	void (*popup_func)(struct bContext *C, void *arg, int event);
 	void (*cancel_func)(struct bContext *C, void *arg);
 	void *popup_arg;
-	
+
 	/* store data for refreshing popups */
 	struct uiPopupBlockCreate popup_create_vars;
 	/* true if we can re-create the popup using 'popup_create_vars' */
@@ -563,7 +563,7 @@ struct uiPopupBlockHandle {
 	ScrArea *ctx_area;
 	ARegion *ctx_region;
 	int opcontext;
-	
+
 	/* return values */
 	int butretval;
 	int menuretval;
diff --git a/source/blender/editors/interface/interface_layout.c b/source/blender/editors/interface/interface_layout.c
index d9db5c930fc..58e654cb3c8 100644
--- a/source/blender/editors/interface/interface_layout.c
+++ b/source/blender/editors/interface/interface_layout.c
@@ -301,7 +301,7 @@ static void ui_item_position(uiItem *item, int x, int y, int w, int h)
 		bitem->but->rect.ymin = y;
 		bitem->but->rect.xmax = x + w;
 		bitem->but->rect.ymax = y + h;
-		
+
 		ui_but_update(bitem->but); /* for strlen */
 	}
 	else {
@@ -321,7 +321,7 @@ static void ui_item_move(uiItem *item, int delta_xmin, int delta_xmax)
 
 		bitem->but->rect.xmin += delta_xmin;
 		bitem->but->rect.xmax += delta_xmax;
-		
+
 		ui_but_update(bitem->but); /* for strlen */
 	}
 	else {
@@ -361,7 +361,7 @@ static uiLayout *ui_item_local_sublayout(uiLayout *test, uiLayout *layout, int a
 		sub = uiLayoutRow(layout, align);
 	else
 		sub = uiLayoutColumn(layout, align);
-	
+
 	sub->space = 0;
 	return sub;
 }
@@ -431,9 +431,9 @@ static void ui_item_array(
 
 		if (ptr->type == &RNA_Armature) {
 			bArmature *arm = (bArmature *)ptr->data;
-			
+
 			layer_used = arm->layer_used;
-			
+
 			if (arm->edbo) {
 				if (arm->act_edbone) {
 					layer_active |= arm->act_edbone->layer;
@@ -452,7 +452,7 @@ static void ui_item_array(
 			for (a = 0; a < colbuts; a++) {
 				const int layer_num  = a + b * colbuts;
 				const unsigned int layer_flag = (1u << layer_num);
-				
+
 				if (layer_used & layer_flag) {
 					if (layer_active & layer_flag)
 						icon = ICON_LAYER_ACTIVE;
@@ -470,7 +470,7 @@ static void ui_item_array(
 			for (a = 0; a < colbuts; a++) {
 				const int layer_num  = a + len / 2 + b * colbuts;
 				const unsigned int layer_flag = (1u << layer_num);
-				
+
 				if (layer_used & layer_flag) {
 					if (layer_active & layer_flag)
 						icon = ICON_LAYER_ACTIVE;
@@ -498,7 +498,7 @@ static void ui_item_array(
 
 		totdim = RNA_property_array_dimension(ptr, prop, dim_size);
 		if (totdim != 2) return;    /* only 2D matrices supported in UI so far */
-		
+
 		w /= dim_size[0];
 		/* h /= dim_size[1]; */ /* UNUSED */
 
@@ -1451,7 +1451,7 @@ void uiItemFullR(uiLayout *layout, PointerRNA *ptr, PropertyRNA *prop, int index
 
 	if (icon == ICON_NONE)
 		icon = RNA_property_ui_icon(prop);
-	
+
 	if (flag & UI_ITEM_R_ICON_ONLY) {
 		/* pass */
 	}
@@ -1504,7 +1504,7 @@ void uiItemFullR(uiLayout *layout, PointerRNA *ptr, PropertyRNA *prop, int index
 	if (no_bg) {
 		layout->emboss = UI_EMBOSS_NONE;
 	}
-	
+
 	/* array property */
 	if (index == RNA_NO_INDEX && is_array)
 		ui_item_array(
@@ -1526,7 +1526,7 @@ void uiItemFullR(uiLayout *layout, PointerRNA *ptr, PropertyRNA *prop, int index
 	else if (type == PROP_ENUM || type == PROP_STRING || type == PROP_POINTER) {
 		but = ui_item_with_label(layout, block, name, icon, ptr, prop, index, 0, 0, w, h, flag);
 		ui_but_add_search(but, ptr, prop, NULL, NULL);
-		
+
 		if (layout->redalert)
 			UI_but_flag_enable(but, UI_BUT_REDALERT);
 	}
@@ -1539,7 +1539,7 @@ void uiItemFullR(uiLayout *layout, PointerRNA *ptr, PropertyRNA *prop, int index
 
 		if (toggle && but->type == UI_BTYPE_CHECKBOX)
 			but->type = UI_BTYPE_TOGGLE;
-		
+
 		if (layout->redalert)
 			UI_but_flag_enable(but, UI_BUT_REDALERT);
 	}
@@ -1783,7 +1783,7 @@ void uiItemPointerR(uiLayout *layout, struct PointerRNA *ptr, const char *propna
 	StructRNA *icontype;
 	int w, h;
 	char namestr[UI_MAX_NAME_STR];
-	
+
 	/* validate arguments */
 	prop = RNA_struct_find_property(ptr, propname);
 
@@ -1792,7 +1792,7 @@ void uiItemPointerR(uiLayout *layout, struct PointerRNA *ptr, const char *propna
 		            RNA_struct_identifier(ptr->type), propname);
 		return;
 	}
-	
+
 	type = RNA_property_type(prop);
 	if (!ELEM(type, PROP_POINTER, PROP_STRING, PROP_ENUM)) {
 		RNA_warning("Property %s must be a pointer, string or enum", propname);
@@ -2296,7 +2296,7 @@ static void ui_litem_layout_row(uiLayout *litem)
 
 	if (totw == 0)
 		return;
-	
+
 	if (w != 0)
 		w -= (tot - 1) * litem->space;
 	fixedw = 0;
@@ -2327,7 +2327,7 @@ static void ui_litem_layout_row(uiLayout *litem)
 			/* ignore min flag for rows with right or center alignment */
 			if (item->type != ITEM_BUTTON &&
 			    ELEM(((uiLayout *)item)->alignment, UI_LAYOUT_ALIGN_RIGHT, UI_LAYOUT_ALIGN_CENTER) &&
-			    litem->alignment == UI_LAYOUT_ALIGN_EXPAND && 
+			    litem->alignment == UI_LAYOUT_ALIGN_EXPAND &&
 			    ((uiItem *)litem)->flag & UI_ITEM_MIN)
 			{
 				min_flag = false;
@@ -2435,7 +2435,7 @@ static void ui_litem_estimate_column(uiLayout *litem, bool is_box)
 		if (item->next && (!is_box || item != litem->items.first))
 			litem->h += litem->space;
 	}
-	
+
 	if (min_size_flag) {
 		litem->item.flag |= UI_ITEM_MIN;
 	}
@@ -2825,7 +2825,7 @@ static void ui_litem_layout_absolute(uiLayout *litem)
 		scalex = (float)litem->w / (float)totw;
 	if (litem->h && toth > 0)
 		scaley = (float)litem->h / (float)toth;
-	
+
 	x = litem->x;
 	y = litem->y - scaley * toth;
 
@@ -2876,7 +2876,7 @@ static void ui_litem_layout_split(uiLayout *litem)
 	y = litem->y;
 
 	percentage = (split->percentage == 0.0f) ? 1.0f / (float)tot : split->percentage;
-	
+
 	w = (litem->w - (tot - 1) * litem->space);
 	colw = w * percentage;
 	colw = MAX2(colw, 0);
@@ -3509,7 +3509,7 @@ uiLayout *UI_block_layout(uiBlock *block, int dir, int type, int x, int y, int s
 	BLI_addtail(&block->layouts, root);
 
 	ui_layout_add_padding_button(root);
-	
+
 	return layout;
 }
 
@@ -3532,7 +3532,7 @@ void UI_block_layout_set_current(uiBlock *block, uiLayout *layout)
 void ui_layout_add_but(uiLayout *layout, uiBut *but)
 {
 	uiButtonItem *bitem;
-	
+
 	bitem = MEM_callocN(sizeof(uiButtonItem), "uiButtonItem");
 	bitem->item.type = ITEM_BUTTON;
 	bitem->but = but;
diff --git a/source/blender/editors/interface/interface_ops.c b/source/blender/editors/interface/interface_ops.c
index 3c65f727133..5c2fb0e7aaa 100644
--- a/source/blender/editors/interface/interface_ops.c
+++ b/source/blender/editors/interface/interface_ops.c
@@ -4,7 +4,7 @@
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version. 
+ * of the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -17,7 +17,7 @@
  *
  * The Original Code is Copyright (C) 2009 Blender Foundation.
  * All rights reserved.
- * 
+ *
  * Contributor(s): Blender Foundation, Joshua Leung
  *
  * ***** END GPL LICENSE BLOCK *****
@@ -78,7 +78,7 @@ static int reset_default_theme_exec(bContext *C, wmOperator *UNUSED(op))
 	ui_theme_init_default();
 	ui_style_init_default();
 	WM_event_add_notifier(C, NC_WINDOW, NULL);
-	
+
 	return OPERATOR_FINISHED;
 }
 
@@ -88,10 +88,10 @@ static void UI_OT_reset_default_theme(wmOperatorType *ot)
 	ot->name = "Reset to Default Theme";
 	ot->idname = "UI_OT_reset_default_theme";
 	ot->description = "Reset to the default theme colors";
-	
+
 	/* callbacks */
 	ot->exec = reset_default_theme_exec;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER;
 }
@@ -109,7 +109,7 @@ static int copy_data_path_button_poll(bContext *C)
 
 	if (ptr.id.data && ptr.data && prop) {
 		path = RNA_path_from_ID_to_property(&ptr, prop);
-		
+
 		if (path) {
 			MEM_freeN(path);
 			return 1;
@@ -255,7 +255,7 @@ static int reset_default_button_poll(bContext *C)
 	int index;
 
 	UI_context_active_but_prop_get(C, &ptr, &prop, &index);
-	
+
 	return (ptr.data && prop && RNA_property_editable(&ptr, prop));
 }
 
@@ -268,7 +268,7 @@ static int reset_default_button_exec(bContext *C, wmOperator *op)
 
 	/* try to reset the nominated setting to its default value */
 	UI_context_active_but_prop_get(C, &ptr, &prop, &index);
-	
+
 	/* if there is a valid property that is editable... */
 	if (ptr.data && prop && RNA_property_editable(&ptr, prop)) {
 		if (RNA_property_reset(&ptr, prop, (all) ? -1 : index))
@@ -291,7 +291,7 @@ static void UI_OT_reset_default_button(wmOperatorType *ot)
 
 	/* flags */
 	ot->flag = OPTYPE_UNDO;
-	
+
 	/* properties */
 	RNA_def_boolean(ot->srna, "all", 1, "All", "Reset to default values all elements of the array");
 }
@@ -800,7 +800,7 @@ static void UI_OT_copy_to_selected_button(wmOperatorType *ot)
 
 /* Reports to Textblock Operator ------------------------ */
 
-/* FIXME: this is just a temporary operator so that we can see all the reports somewhere 
+/* FIXME: this is just a temporary operator so that we can see all the reports somewhere
  * when there are too many to display...
  */
 
@@ -815,10 +815,10 @@ static int reports_to_text_exec(bContext *C, wmOperator *UNUSED(op))
 	Main *bmain = CTX_data_main(C);
 	Text *txt;
 	char *str;
-	
+
 	/* create new text-block to write to */
 	txt = BKE_text_add(bmain, "Recent Reports");
-	
+
 	/* convert entire list to a display string, and add this to the text-block
 	 *	- if commandline debug option enabled, show debug reports too
 	 *	- otherwise, up to info (which is what users normally see)
@@ -843,7 +843,7 @@ static void UI_OT_reports_to_textblock(wmOperatorType *ot)
 	ot->name = "Reports to Text Block";
 	ot->idname = "UI_OT_reports_to_textblock";
 	ot->description = "Write the reports ";
-	
+
 	/* callbacks */
 	ot->poll = reports_to_text_poll;
 	ot->exec = reports_to_text_exec;
diff --git a/source/blender/editors/interface/interface_panel.c b/source/blender/editors/interface/interface_panel.c
index f621a906789..121fdeb053d 100644
--- a/source/blender/editors/interface/interface_panel.c
+++ b/source/blender/editors/interface/interface_panel.c
@@ -29,7 +29,7 @@
 
 
 /* a full doc with API notes can be found in bf-blender/trunk/blender/doc/guides/interface_API.txt */
- 
+
 #include <math.h>
 #include <stdlib.h>
 #include <string.h>
@@ -129,7 +129,7 @@ static int panel_aligned(ScrArea *sa, ARegion *ar)
 		return BUT_VERTICAL;
 	else if (ELEM(ar->regiontype, RGN_TYPE_UI, RGN_TYPE_TOOLS, RGN_TYPE_TOOL_PROPS))
 		return BUT_VERTICAL;
-	
+
 	return 0;
 }
 
@@ -170,7 +170,7 @@ static int panels_re_align(ScrArea *sa, ARegion *ar, Panel **r_pa)
 			return 1;
 		}
 	}
-	
+
 	return 0;
 }
 
@@ -270,7 +270,7 @@ Panel *UI_panel_begin(ScrArea *sa, ARegion *ar, uiBlock *block, PanelType *pt, P
 			else
 				pa->flag |= PNL_CLOSEDX;
 		}
-	
+
 		pa->ofsx = 0;
 		pa->ofsy = 0;
 		pa->sizex = 0;
@@ -318,7 +318,7 @@ Panel *UI_panel_begin(ScrArea *sa, ARegion *ar, uiBlock *block, PanelType *pt, P
 	for (palast = ar->panels.first; palast; palast = palast->next)
 		if (palast->runtime_flag & PNL_LAST_ADDED)
 			break;
-	
+
 	if (newpanel) {
 		pa->sortorder = (palast) ? palast->sortorder + 1 : 0;
 
@@ -340,7 +340,7 @@ Panel *UI_panel_begin(ScrArea *sa, ARegion *ar, uiBlock *block, PanelType *pt, P
 	if (pa->flag & PNL_CLOSED) return pa;
 
 	*r_open = true;
-	
+
 	return pa;
 }
 
@@ -398,7 +398,7 @@ void UI_draw_icon_tri(float x, float y, char dir, const float color[4])
 	float f3 = 0.15 * U.widget_unit;
 	float f5 = 0.25 * U.widget_unit;
 	float f7 = 0.35 * U.widget_unit;
-	
+
 	if (dir == 'h') {
 		UI_draw_anti_tria(x - f3, y - f5, x - f3, y + f5, x + f7, y, color);
 	}
@@ -445,10 +445,10 @@ static void ui_draw_anti_x(unsigned int pos, float x1, float y1, float x2, float
 	immVertex2f(pos, x2, y1);
 
 	immEnd();
-	
+
 	glDisable(GL_LINE_SMOOTH);
 	glDisable(GL_BLEND);
-	
+
 }
 
 /* x 'icon' for panel header */
@@ -465,15 +465,15 @@ static void ui_draw_panel_scalewidget(unsigned int pos, const rcti *rect)
 {
 	float xmin, xmax, dx;
 	float ymin, ymax, dy;
-	
+
 	xmin = rect->xmax - PNL_HEADER + 2;
 	xmax = rect->xmax - 3;
 	ymin = rect->ymin + 3;
 	ymax = rect->ymin + PNL_HEADER - 2;
-		
+
 	dx = 0.5f * (xmax - xmin);
 	dy = 0.5f * (ymax - ymin);
-	
+
 	glEnable(GL_BLEND);
 	immUniformColor4ub(255, 255, 255, 50);
 
@@ -486,7 +486,7 @@ static void ui_draw_panel_scalewidget(unsigned int pos, const rcti *rect)
 	immVertex2f(pos, xmax, ymax - dy);
 
 	immEnd();
-	
+
 	immUniformColor4ub(0, 0, 0, 50);
 
 	immBegin(GWN_PRIM_LINES, 4);
@@ -583,7 +583,7 @@ static void ui_draw_aligned_panel_header(uiStyle *style, uiBlock *block, const r
 		UI_fontstyle_draw(&style->paneltitle, &hrect, activename, col_title);
 	}
 	else {
-		/* ignore 'pnl_icons', otherwise the text gets offset horizontally 
+		/* ignore 'pnl_icons', otherwise the text gets offset horizontally
 		 * + 0.001f to avoid flirting with float inaccuracy
 		 */
 		hrect.xmin = rect->xmin + (PNL_ICON + 5) / block->aspect + 0.001f;
@@ -818,7 +818,7 @@ typedef struct PanelSort {
 static int find_leftmost_panel(const void *a1, const void *a2)
 {
 	const PanelSort *ps1 = a1, *ps2 = a2;
-	
+
 	if (ps1->pa->ofsx > ps2->pa->ofsx) return 1;
 	else if (ps1->pa->ofsx < ps2->pa->ofsx) return -1;
 	else if (ps1->pa->sortorder > ps2->pa->sortorder) return 1;
@@ -831,7 +831,7 @@ static int find_leftmost_panel(const void *a1, const void *a2)
 static int find_highest_panel(const void *a1, const void *a2)
 {
 	const PanelSort *ps1 = a1, *ps2 = a2;
-	
+
 	/* stick uppermost header-less panels to the top of the region -
 	 * prevent them from being sorted (multiple header-less panels have to be sorted though) */
 	if (ps1->pa->type->flag & PNL_NO_HEADER && ps2->pa->type->flag & PNL_NO_HEADER) {
@@ -844,17 +844,17 @@ static int find_highest_panel(const void *a1, const void *a2)
 	else if (ps1->pa->ofsy + ps1->pa->sizey > ps2->pa->ofsy + ps2->pa->sizey) return -1;
 	else if (ps1->pa->sortorder > ps2->pa->sortorder) return 1;
 	else if (ps1->pa->sortorder < ps2->pa->sortorder) return -1;
-	
+
 	return 0;
 }
 
 static int compare_panel(const void *a1, const void *a2)
 {
 	const PanelSort *ps1 = a1, *ps2 = a2;
-	
+
 	if (ps1->pa->sortorder > ps2->pa->sortorder) return 1;
 	else if (ps1->pa->sortorder < ps2->pa->sortorder) return -1;
-	
+
 	return 0;
 }
 
@@ -868,7 +868,7 @@ static bool uiAlignPanelStep(ScrArea *sa, ARegion *ar, const float fac, const bo
 	bool done;
 	int align = panel_aligned(sa, ar);
 	bool has_category_tabs = UI_panel_category_is_visible(ar);
-	
+
 	/* count active, not tabbed panels */
 	for (pa = ar->panels.first; pa; pa = pa->next)
 		if ((pa->runtime_flag & PNL_ACTIVE) && pa->paneltab == NULL)
@@ -888,7 +888,7 @@ static bool uiAlignPanelStep(ScrArea *sa, ARegion *ar, const float fac, const bo
 
 	/* sort panels */
 	panelsort = MEM_callocN(tot * sizeof(PanelSort), "panelsort");
-	
+
 	ps = panelsort;
 	for (pa = ar->panels.first; pa; pa = pa->next) {
 		if ((pa->runtime_flag & PNL_ACTIVE) && pa->paneltab == NULL) {
@@ -897,7 +897,7 @@ static bool uiAlignPanelStep(ScrArea *sa, ARegion *ar, const float fac, const bo
 			ps++;
 		}
 	}
-	
+
 	if (drag) {
 		/* while we are dragging, we sort on location and update sortorder */
 		if (align == BUT_VERTICAL)
@@ -911,7 +911,7 @@ static bool uiAlignPanelStep(ScrArea *sa, ARegion *ar, const float fac, const bo
 	else
 		/* otherwise use sortorder */
 		qsort(panelsort, tot, sizeof(PanelSort), compare_panel);
-	
+
 	/* no smart other default start loc! this keeps switching f5/f6/etc compatible */
 	ps = panelsort;
 	ps->pa->ofsx = 0;
@@ -935,7 +935,7 @@ static bool uiAlignPanelStep(ScrArea *sa, ARegion *ar, const float fac, const bo
 			psnext->pa->ofsy = ps->pa->ofsy + get_panel_size_y(ps->pa) - get_panel_size_y(psnext->pa);
 		}
 	}
-	
+
 	/* we interpolate */
 	done = false;
 	ps = panelsort;
@@ -959,7 +959,7 @@ static bool uiAlignPanelStep(ScrArea *sa, ARegion *ar, const float fac, const bo
 		MEM_freeN(ps->pa);
 	}
 	MEM_freeN(panelsort);
-	
+
 	return done;
 }
 
@@ -993,7 +993,7 @@ static void ui_panels_size(ScrArea *sa, ARegion *ar, int *x, int *y)
 		sizex = UI_PANEL_WIDTH;
 	if (sizey == 0)
 		sizey = -UI_PANEL_WIDTH;
-	
+
 	*x = sizex;
 	*y = sizey;
 }
@@ -1042,7 +1042,7 @@ void UI_panels_end(const bContext *C, ARegion *ar, int *x, int *y)
 	ScrArea *sa = CTX_wm_area(C);
 	uiBlock *block;
 	Panel *panot, *panew, *patest, *pa, *firstpa;
-	
+
 	/* offset contents */
 	for (block = ar->uiblocks.first; block; block = block->next)
 		if (block->active && block->panel)
@@ -1088,10 +1088,10 @@ void UI_panels_end(const bContext *C, ARegion *ar, int *x, int *y)
 		if (block->active && block->panel)
 			if (!firstpa || block->panel->sortorder < firstpa->sortorder)
 				firstpa = block->panel;
-	
+
 	if (firstpa)
 		firstpa->runtime_flag |= PNL_FIRST;
-	
+
 	/* compute size taken up by panel */
 	ui_panels_size(sa, ar, x, y);
 }
@@ -1101,7 +1101,7 @@ void UI_panels_draw(const bContext *C, ARegion *ar)
 	uiBlock *block;
 
 	UI_ThemeClearColor(TH_BACK);
-	
+
 	/* draw panels, selected on top */
 	for (block = ar->uiblocks.first; block; block = block->next) {
 		if (block->active && block->panel && !(block->panel->flag & PNL_SELECT)) {
@@ -1120,12 +1120,12 @@ void UI_panels_scale(ARegion *ar, float new_width)
 {
 	uiBlock *block;
 	uiBut *but;
-	
+
 	for (block = ar->uiblocks.first; block; block = block->next) {
 		if (block->panel) {
 			float fac = new_width / (float)block->panel->sizex;
 			block->panel->sizex = new_width;
-			
+
 			for (but = block->buttons.first; but; but = but->next) {
 				but->rect.xmin *= fac;
 				but->rect.xmax *= fac;
@@ -1141,13 +1141,13 @@ static void check_panel_overlap(ARegion *ar, Panel *panel)
 	Panel *pa;
 
 	/* also called with (panel == NULL) for clear */
-	
+
 	for (pa = ar->panels.first; pa; pa = pa->next) {
 		pa->flag &= ~PNL_OVERLAP;
 		if (panel && (pa != panel)) {
 			if (pa->paneltab == NULL && (pa->runtime_flag & PNL_ACTIVE)) {
 				float safex = 0.2, safey = 0.2;
-				
+
 				if (pa->flag & PNL_CLOSEDX) safex = 0.05;
 				else if (pa->flag & PNL_CLOSEDY) safey = 0.05;
 				else if (panel->flag & PNL_CLOSEDX) safex = 0.05;
@@ -1171,7 +1171,7 @@ static void ui_do_drag(const bContext *C, const wmEvent *event, Panel *panel)
 	ScrArea *sa = CTX_wm_area(C);
 	ARegion *ar = CTX_wm_region(C);
 	short align = panel_aligned(sa, ar), dx = 0, dy = 0;
-	
+
 	/* first clip for window, no dragging outside */
 	if (!BLI_rcti_isect_pt_v(&ar->winrct, &event->x))
 		return;
@@ -1181,10 +1181,10 @@ static void ui_do_drag(const bContext *C, const wmEvent *event, Panel *panel)
 
 	dx *= (float)BLI_rctf_size_x(&ar->v2d.cur) / (float)BLI_rcti_size_x(&ar->winrct);
 	dy *= (float)BLI_rctf_size_y(&ar->v2d.cur) / (float)BLI_rcti_size_y(&ar->winrct);
-	
+
 	if (data->state == PANEL_STATE_DRAG_SCALE) {
 		panel->sizex = MAX2(data->startsizex + dx, UI_PANEL_MINX);
-		
+
 		if (data->startsizey - dy < UI_PANEL_MINY)
 			dy = -UI_PANEL_MINY + data->startsizey;
 
@@ -1194,11 +1194,11 @@ static void ui_do_drag(const bContext *C, const wmEvent *event, Panel *panel)
 	else {
 		/* reset the panel snapping, to allow dragging away from snapped edges */
 		panel->snap = PNL_SNAP_NONE;
-		
+
 		panel->ofsx = data->startofsx + dx;
 		panel->ofsy = data->startofsy + dy;
 		check_panel_overlap(ar, panel);
-		
+
 		if (align) uiAlignPanelStep(sa, ar, 0.2, true);
 	}
 
@@ -1388,9 +1388,9 @@ static void ui_handle_panel_header(const bContext *C, uiBlock *block, int mx, in
 	rect_leftmost = rect_pin.xmin;
 
 	/* mouse coordinates in panel space! */
-	
+
 	/* XXX weak code, currently it assumes layout style for location of widgets */
-	
+
 	/* check open/collapsed button */
 	if (event == RETKEY)
 		button = 1;
@@ -1411,7 +1411,7 @@ static void ui_handle_panel_header(const bContext *C, uiBlock *block, int mx, in
 	else if (mx < rect_leftmost) {
 		button = 1;
 	}
-	
+
 	if (button) {
 		if (button == 2) {  /* close */
 			ED_region_tag_redraw(ar);
@@ -1427,7 +1427,7 @@ static void ui_handle_panel_header(const bContext *C, uiBlock *block, int mx, in
 			if (block->panel->flag & PNL_CLOSED) {
 				block->panel->flag &= ~PNL_CLOSED;
 				/* snap back up so full panel aligns with screen edge */
-				if (block->panel->snap & PNL_SNAP_BOTTOM) 
+				if (block->panel->snap & PNL_SNAP_BOTTOM)
 					block->panel->ofsy = 0;
 
 				if (event == LEFTMOUSE) {
@@ -1444,14 +1444,14 @@ static void ui_handle_panel_header(const bContext *C, uiBlock *block, int mx, in
 			else {
 				/* snap down to bottom screen edge */
 				block->panel->flag |= PNL_CLOSEDY;
-				if (block->panel->snap & PNL_SNAP_BOTTOM) 
+				if (block->panel->snap & PNL_SNAP_BOTTOM)
 					block->panel->ofsy = -block->panel->sizey;
 
 				if (event == LEFTMOUSE) {
 					ui_panel_drag_collapse_handler_add(C, true);
 				}
 			}
-			
+
 			for (pa = ar->panels.first; pa; pa = pa->next) {
 				if (pa->paneltab == block->panel) {
 					if (block->panel->flag & PNL_CLOSED) pa->flag |= PNL_CLOSED;
@@ -2068,27 +2068,27 @@ int ui_handler_panel_region(bContext *C, const wmEvent *event, ARegion *ar, cons
 		/* XXX hardcoded key warning */
 		if (ELEM(mouse_state, PANEL_MOUSE_INSIDE_CONTENT, PANEL_MOUSE_INSIDE_HEADER) && event->val == KM_PRESS) {
 			if (event->type == AKEY && ((event->ctrl + event->oskey + event->shift + event->alt) == 0)) {
-				
+
 				if (pa->flag & PNL_CLOSEDY) {
 					if ((block->rect.ymax <= my) && (block->rect.ymax + PNL_HEADER >= my))
 						ui_handle_panel_header(C, block, mx, my, event->type, event->ctrl, event->shift);
 				}
 				else
 					ui_handle_panel_header(C, block, mx, my, event->type, event->ctrl, event->shift);
-				
+
 				retval = WM_UI_HANDLER_BREAK;
 				continue;
 			}
 		}
-		
+
 		/* on active button, do not handle panels */
 		if (ui_but_is_active(ar))
 			continue;
-		
+
 		if (ELEM(mouse_state, PANEL_MOUSE_INSIDE_CONTENT, PANEL_MOUSE_INSIDE_HEADER)) {
 
 			if (event->val == KM_PRESS) {
-				
+
 				/* open close on header */
 				if (ELEM(event->type, RETKEY, PADENTER)) {
 					if (mouse_state == PANEL_MOUSE_INSIDE_HEADER) {
@@ -2100,7 +2100,7 @@ int ui_handler_panel_region(bContext *C, const wmEvent *event, ARegion *ar, cons
 				else if (event->type == LEFTMOUSE) {
 					/* all inside clicks should return in break - overlapping/float panels */
 					retval = WM_UI_HANDLER_BREAK;
-					
+
 					if (mouse_state == PANEL_MOUSE_INSIDE_HEADER) {
 						ui_handle_panel_header(C, block, mx, my, event->type, event->ctrl, event->shift);
 						retval = WM_UI_HANDLER_BREAK;
@@ -2133,7 +2133,7 @@ int ui_handler_panel_region(bContext *C, const wmEvent *event, ARegion *ar, cons
 				else if (event->type == PADPLUSKEY || event->type == PADMINUS) {
 #if 0 /* XXX make float panel exception? */
 					int zoom = 0;
-				
+
 					/* if panel is closed, only zoom if mouse is over the header */
 					if (pa->flag & (PNL_CLOSEDX | PNL_CLOSEDY)) {
 						if (inside_header)
@@ -2216,7 +2216,7 @@ static void panel_activate_state(const bContext *C, Panel *pa, uiHandlePanelStat
 	uiHandlePanelData *data = pa->activedata;
 	wmWindow *win = CTX_wm_window(C);
 	ARegion *ar = CTX_wm_region(C);
-	
+
 	if (data && data->state == state)
 		return;
 
diff --git a/source/blender/editors/interface/interface_regions.c b/source/blender/editors/interface/interface_regions.c
index fa25a119ada..0decc937e19 100644
--- a/source/blender/editors/interface/interface_regions.c
+++ b/source/blender/editors/interface/interface_regions.c
@@ -4,7 +4,7 @@
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version. 
+ * of the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -17,7 +17,7 @@
  *
  * The Original Code is Copyright (C) 2008 Blender Foundation.
  * All rights reserved.
- * 
+ *
  * Contributor(s): Blender Foundation
  *
  * ***** END GPL LICENSE BLOCK *****
diff --git a/source/blender/editors/interface/interface_style.c b/source/blender/editors/interface/interface_style.c
index 01456e2e122..adc3a24d1a9 100644
--- a/source/blender/editors/interface/interface_style.c
+++ b/source/blender/editors/interface/interface_style.c
@@ -4,7 +4,7 @@
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version. 
+ * of the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -17,7 +17,7 @@
  *
  * The Original Code is Copyright (C) 2009 Blender Foundation.
  * All rights reserved.
- * 
+ *
  * Contributor(s): Blender Foundation
  *
  * ***** END GPL LICENSE BLOCK *****
@@ -65,10 +65,10 @@
 /* style + theme + layout-engine = UI */
 
 /**
- * This is a complete set of layout rules, the 'state' of the Layout 
- * Engine. Multiple styles are possible, defined via C or Python. Styles 
- * get a name, and will typically get activated per region type, like 
- * "Header", or "Listview" or "Toolbar". Properties of Style definitions 
+ * This is a complete set of layout rules, the 'state' of the Layout
+ * Engine. Multiple styles are possible, defined via C or Python. Styles
+ * get a name, and will typically get activated per region type, like
+ * "Header", or "Listview" or "Toolbar". Properties of Style definitions
  * are:
  *
  * - default column properties, internal spacing, aligning, min/max width
@@ -85,10 +85,10 @@
 static uiStyle *ui_style_new(ListBase *styles, const char *name, short uifont_id)
 {
 	uiStyle *style = MEM_callocN(sizeof(uiStyle), "new style");
-	
+
 	BLI_addtail(styles, style);
 	BLI_strncpy(style->name, name, MAX_STYLE_NAME);
-	
+
 	style->panelzoom = 1.0; /* unused */
 
 	style->paneltitle.uifont_id = uifont_id;
@@ -129,14 +129,14 @@ static uiStyle *ui_style_new(ListBase *styles, const char *name, short uifont_id
 	style->buttonspacey = 2;
 	style->panelspace = 8;
 	style->panelouter = 4;
-	
+
 	return style;
 }
 
 static uiFont *uifont_to_blfont(int id)
 {
 	uiFont *font = U.uifonts.first;
-	
+
 	for (; font; font = font->next) {
 		if (font->uifont_id == id) {
 			return font;
@@ -154,7 +154,7 @@ void UI_fontstyle_draw_ex(
 {
 	int xofs = 0, yofs;
 	int font_flag = BLF_CLIPPING;
-	
+
 	UI_fontstyle_set(fs);
 
 	/* set the flag */
@@ -192,7 +192,7 @@ void UI_fontstyle_draw_ex(
 	else if (fs->align == UI_STYLE_TEXT_RIGHT) {
 		xofs = BLI_rcti_size_x(rect) - BLF_width(fs->uifont_id, str, len) - 0.1f * U.widget_unit;
 	}
-	
+
 	/* clip is very strict, so we give it some space */
 	BLF_clipping(fs->uifont_id, rect->xmin - 2, rect->ymin - 4, rect->xmax + 1, rect->ymax + 4);
 	BLF_position(fs->uifont_id, rect->xmin + xofs, rect->ymin + yofs, 0.0f);
@@ -349,16 +349,16 @@ uiStyle *UI_style_get_dpi(void)
 {
 	uiStyle *style = UI_style_get();
 	static uiStyle _style;
-	
+
 	_style = *style;
-	
+
 	_style.paneltitle.shadx = (short)(UI_DPI_FAC * _style.paneltitle.shadx);
 	_style.paneltitle.shady = (short)(UI_DPI_FAC * _style.paneltitle.shady);
 	_style.grouplabel.shadx = (short)(UI_DPI_FAC * _style.grouplabel.shadx);
 	_style.grouplabel.shady = (short)(UI_DPI_FAC * _style.grouplabel.shady);
 	_style.widgetlabel.shadx = (short)(UI_DPI_FAC * _style.widgetlabel.shadx);
 	_style.widgetlabel.shady = (short)(UI_DPI_FAC * _style.widgetlabel.shady);
-	
+
 	_style.columnspace = (short)(UI_DPI_FAC * _style.columnspace);
 	_style.templatespace = (short)(UI_DPI_FAC * _style.templatespace);
 	_style.boxspace = (short)(UI_DPI_FAC * _style.boxspace);
@@ -366,23 +366,23 @@ uiStyle *UI_style_get_dpi(void)
 	_style.buttonspacey = (short)(UI_DPI_FAC * _style.buttonspacey);
 	_style.panelspace = (short)(UI_DPI_FAC * _style.panelspace);
 	_style.panelouter = (short)(UI_DPI_FAC * _style.panelouter);
-	
+
 	return &_style;
 }
 
 int UI_fontstyle_string_width(const uiFontStyle *fs, const char *str)
 {
 	int width;
-	
+
 	if (fs->kerning == 1) /* for BLF_width */
 		BLF_enable(fs->uifont_id, BLF_KERNING_DEFAULT);
-	
+
 	UI_fontstyle_set(fs);
 	width = BLF_width(fs->uifont_id, str, BLF_DRAW_STR_DUMMY_MAX);
-	
+
 	if (fs->kerning == 1)
 		BLF_disable(fs->uifont_id, BLF_KERNING_DEFAULT);
-	
+
 	return width;
 }
 
@@ -403,12 +403,12 @@ void uiStyleInit(void)
 	uiStyle *style = U.uistyles.first;
 	int monofont_size = datatoc_bmonofont_ttf_size;
 	unsigned char *monofont_ttf = (unsigned char *)datatoc_bmonofont_ttf;
-	
+
 	/* recover from uninitialized dpi */
 	if (U.dpi == 0)
 		U.dpi = 72;
 	CLAMP(U.dpi, 48, 144);
-	
+
 	for (font = U.uifonts.first; font; font = font->next) {
 		BLF_unload_id(font->blf_id);
 	}
@@ -439,9 +439,9 @@ void uiStyleInit(void)
 		BLI_strncpy(font->filename, "default", sizeof(font->filename));
 		font->uifont_id = UIFONT_DEFAULT;
 	}
-	
+
 	for (font = U.uifonts.first; font; font = font->next) {
-		
+
 		if (font->uifont_id == UIFONT_DEFAULT) {
 #ifdef WITH_INTERNATIONAL
 			int font_size = datatoc_bfont_ttf_size;
@@ -493,11 +493,11 @@ void uiStyleInit(void)
 			BLF_size(font->blf_id, 14 * U.pixelsize, U.dpi);
 		}
 	}
-	
+
 	if (style == NULL) {
 		ui_style_new(&U.uistyles, "Default Style", UIFONT_DEFAULT);
 	}
-	
+
 #ifdef WITH_INTERNATIONAL
 	/* use unicode font for text editor and interactive console */
 	if (U.transopts & USER_DOTRANSLATE) {
@@ -521,7 +521,7 @@ void uiStyleInit(void)
 	}
 
 	BLF_size(blf_mono_font, 12 * U.pixelsize, 72);
-	
+
 	/**
 	 * Second for rendering else we get threading problems,
 	 *
@@ -537,7 +537,7 @@ void uiStyleInit(void)
 void UI_fontstyle_set(const uiFontStyle *fs)
 {
 	uiFont *font = uifont_to_blfont(fs->uifont_id);
-	
+
 	BLF_size(font->blf_id, fs->points * U.pixelsize, U.dpi);
 }
 
diff --git a/source/blender/editors/interface/interface_templates.c b/source/blender/editors/interface/interface_templates.c
index ca00fb325da..d934d4dd1e4 100644
--- a/source/blender/editors/interface/interface_templates.c
+++ b/source/blender/editors/interface/interface_templates.c
@@ -426,7 +426,7 @@ static void template_id_cb(bContext *C, void *arg_litem, void *arg_event)
 	PointerRNA idptr = RNA_property_pointer_get(&template_ui->ptr, template_ui->prop);
 	ID *id = idptr.data;
 	int event = GET_INT_FROM_POINTER(arg_event);
-	
+
 	switch (event) {
 		case UI_ID_BROWSE:
 		case UI_ID_PIN:
@@ -727,14 +727,14 @@ static void template_ID(
 				UI_but_flag_enable(but, UI_BUT_DISABLED);
 			}
 		}
-	
+
 		if (user_alert) UI_but_flag_enable(but, UI_BUT_REDALERT);
-		
+
 		if (id->lib == NULL && !(ELEM(GS(id->name), ID_GR, ID_SCE, ID_SCR, ID_TXT, ID_OB, ID_WS))) {
 			uiDefButR(block, UI_BTYPE_TOGGLE, 0, "F", 0, 0, UI_UNIT_X, UI_UNIT_Y, &idptr, "use_fake_user", -1, 0, 0, -1, -1, NULL);
 		}
 	}
-	
+
 	if (flag & UI_ID_ADD_NEW) {
 		template_id_def_new_but(block, id, template_ui, type, newop, editable, flag & UI_ID_OPEN, false, UI_UNIT_X);
 	}
@@ -745,14 +745,14 @@ static void template_ID(
 		but = uiDefIconButO(block, UI_BTYPE_BUT, "FILE_OT_unpack_item", WM_OP_INVOKE_REGION_WIN, ICON_PACKAGE, 0, 0,
 		                    UI_UNIT_X, UI_UNIT_Y, TIP_("Packed File, click to unpack"));
 		UI_but_operator_ptr_get(but);
-		
+
 		RNA_string_set(but->opptr, "id_name", id->name + 2);
 		RNA_int_set(but->opptr, "id_type", GS(id->name));
-		
+
 	}
 	else if (flag & UI_ID_OPEN) {
 		int w = id ? UI_UNIT_X : (flag & UI_ID_ADD_NEW) ? UI_UNIT_X * 3 : UI_UNIT_X * 6;
-		
+
 		if (openop) {
 			but = uiDefIconTextButO(block, UI_BTYPE_BUT, openop, WM_OP_INVOKE_DEFAULT, ICON_FILESEL, (id) ? "" : IFACE_("Open"),
 			                        0, 0, w, UI_UNIT_Y, NULL);
@@ -767,7 +767,7 @@ static void template_ID(
 		if ((idfrom && idfrom->lib) || !editable)
 			UI_but_flag_enable(but, UI_BUT_DISABLED);
 	}
-	
+
 	/* delete button */
 	/* don't use RNA_property_is_unlink here */
 	if (id && (flag & UI_ID_DELETE)) {
@@ -973,7 +973,7 @@ void uiTemplateAnyID(
 {
 	PropertyRNA *propID, *propType;
 	uiLayout *split, *row, *sub;
-	
+
 	/* get properties... */
 	propID = RNA_struct_find_property(ptr, propname);
 	propType = RNA_struct_find_property(ptr, proptypename);
@@ -986,13 +986,13 @@ void uiTemplateAnyID(
 		RNA_warning("pointer-type property not found: %s.%s", RNA_struct_identifier(ptr->type), proptypename);
 		return;
 	}
-	
+
 	/* Start drawing UI Elements using standard defines */
 	split = uiLayoutSplit(layout, 0.33f, false);  /* NOTE: split amount here needs to be synced with normal labels */
-	
+
 	/* FIRST PART ................................................ */
 	row = uiLayoutRow(split, false);
-	
+
 	/* Label - either use the provided text, or will become "ID-Block:" */
 	if (text) {
 		if (text[0])
@@ -1001,20 +1001,20 @@ void uiTemplateAnyID(
 	else {
 		uiItemL(row, IFACE_("ID-Block:"), ICON_NONE);
 	}
-	
+
 	/* SECOND PART ................................................ */
 	row = uiLayoutRow(split, true);
-	
+
 	/* ID-Type Selector - just have a menu of icons */
 	sub = uiLayoutRow(row, true);                     /* HACK: special group just for the enum, otherwise we */
 	uiLayoutSetAlignment(sub, UI_LAYOUT_ALIGN_LEFT);  /*       we get ugly layout with text included too...  */
-	
+
 	uiItemFullR(sub, ptr, propType, 0, 0, UI_ITEM_R_ICON_ONLY, "", ICON_NONE);
-	
+
 	/* ID-Block Selector - just use pointer widget... */
 	sub = uiLayoutRow(row, true);                       /* HACK: special group to counteract the effects of the previous */
 	uiLayoutSetAlignment(sub, UI_LAYOUT_ALIGN_EXPAND);  /*       enum, which now pushes everything too far right         */
-	
+
 	uiItemFullR(sub, ptr, propID, 0, 0, 0, "", ICON_NONE);
 }
 
@@ -1236,20 +1236,20 @@ void uiTemplatePathBuilder(uiLayout *layout, PointerRNA *ptr, const char *propna
 {
 	PropertyRNA *propPath;
 	uiLayout *row;
-	
+
 	/* check that properties are valid */
 	propPath = RNA_struct_find_property(ptr, propname);
 	if (!propPath || RNA_property_type(propPath) != PROP_STRING) {
 		RNA_warning("path property not found: %s.%s", RNA_struct_identifier(ptr->type), propname);
 		return;
 	}
-	
+
 	/* Start drawing UI Elements using standard defines */
 	row = uiLayoutRow(layout, true);
-	
+
 	/* Path (existing string) Widget */
 	uiItemR(row, ptr, propname, 0, text, ICON_RNA);
-	
+
 	/* TODO: attach something to this to make allow searching of nested properties to 'build' the path */
 }
 
@@ -1267,7 +1267,7 @@ static void modifiers_convertToReal(bContext *C, void *ob_v, void *md_v)
 	nmd->mode &= ~eModifierMode_Virtual;
 
 	BLI_addhead(&ob->modifiers, nmd);
-	
+
 	modifier_unique_name(&ob->modifiers, nmd);
 
 	ob->partype = PAROBJECT;
@@ -1327,7 +1327,7 @@ static uiLayout *draw_modifier(
 
 	/* rounded header ------------------------------------------------------------------- */
 	box = uiLayoutBox(column);
-	
+
 	if (isVirtual) {
 		row = uiLayoutRow(box, false);
 		uiLayoutSetAlignment(row, UI_LAYOUT_ALIGN_EXPAND);
@@ -1336,7 +1336,7 @@ static uiLayout *draw_modifier(
 		/* XXX this is not used now, since these cannot be accessed via RNA */
 		BLI_snprintf(str, sizeof(str), IFACE_("%s parent deform"), md->name);
 		uiDefBut(block, UI_BTYPE_LABEL, 0, str, 0, 0, 185, UI_UNIT_Y, NULL, 0.0, 0.0, 0.0, 0.0, TIP_("Modifier name"));
-		
+
 		but = uiDefBut(block, UI_BTYPE_BUT, 0, IFACE_("Make Real"), 0, 0, 80, 16, NULL, 0.0, 0.0, 0.0, 0.0,
 		               TIP_("Convert virtual modifier to a real modifier"));
 		UI_but_func_set(but, modifiers_convertToReal, ob, md);
@@ -1345,15 +1345,15 @@ static uiLayout *draw_modifier(
 		/* REAL MODIFIER */
 		row = uiLayoutRow(box, false);
 		block = uiLayoutGetBlock(row);
-		
+
 		UI_block_emboss_set(block, UI_EMBOSS_NONE);
 		/* Open/Close .................................  */
 		uiItemR(row, &ptr, "show_expanded", 0, "", ICON_NONE);
-		
+
 		/* modifier-type icon */
 		uiItemL(row, "", RNA_struct_ui_icon(ptr.type));
 		UI_block_emboss_set(block, UI_EMBOSS);
-		
+
 		/* modifier name */
 		md->scene = scene;
 		if (mti->isDisabled && mti->isDisabled(md, 0)) {
@@ -1361,7 +1361,7 @@ static uiLayout *draw_modifier(
 		}
 		uiItemR(row, &ptr, "name", 0, "", ICON_NONE);
 		uiLayoutSetRedAlert(row, false);
-		
+
 		/* mode enabling buttons */
 		UI_block_align_begin(block);
 		/* Collision and Surface are always enabled, hide buttons! */
@@ -1370,7 +1370,7 @@ static uiLayout *draw_modifier(
 		{
 			uiItemR(row, &ptr, "show_render", 0, "", ICON_NONE);
 			uiItemR(row, &ptr, "show_viewport", 0, "", ICON_NONE);
-			
+
 			if (mti->flags & eModifierTypeFlag_SupportsEditmode) {
 				sub = uiLayoutRow(row, true);
 				if (!(md->mode & eModifierMode_Realtime)) {
@@ -1406,13 +1406,13 @@ static uiLayout *draw_modifier(
 		}
 
 		UI_block_align_end(block);
-		
+
 		/* Up/Down + Delete ........................... */
 		UI_block_align_begin(block);
 		uiItemO(row, "", ICON_TRIA_UP, "OBJECT_OT_modifier_move_up");
 		uiItemO(row, "", ICON_TRIA_DOWN, "OBJECT_OT_modifier_move_down");
 		UI_block_align_end(block);
-		
+
 		UI_block_emboss_set(block, UI_EMBOSS_NONE);
 		/* When Modifier is a simulation, show button to switch to context rather than the delete button. */
 		if (modifier_can_delete(md) &&
@@ -1429,20 +1429,20 @@ static uiLayout *draw_modifier(
 		UI_block_emboss_set(block, UI_EMBOSS);
 	}
 
-	
+
 	/* modifier settings (under the header) --------------------------------------------------- */
 	if (!isVirtual && (md->mode & eModifierMode_Expanded)) {
 		/* apply/convert/copy */
 		box = uiLayoutBox(column);
 		row = uiLayoutRow(box, false);
-		
+
 		if (!ELEM(md->type, eModifierType_Collision, eModifierType_Surface)) {
 			/* only here obdata, the rest of modifiers is ob level */
 			UI_block_lock_set(block, BKE_object_obdata_is_libdata(ob), ERROR_LIBDATA_MESSAGE);
-			
+
 			if (md->type == eModifierType_ParticleSystem) {
 				ParticleSystem *psys = ((ParticleSystemModifierData *)md)->psys;
-				
+
 				if (!(ob->mode & OB_MODE_PARTICLE_EDIT)) {
 					if (ELEM(psys->part->ren_as, PART_DRAW_GR, PART_DRAW_OB))
 						uiItemO(row, CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Convert"), ICON_NONE,
@@ -1456,17 +1456,17 @@ static uiLayout *draw_modifier(
 				uiLayoutSetOperatorContext(row, WM_OP_INVOKE_DEFAULT);
 				uiItemEnumO(row, "OBJECT_OT_modifier_apply", CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Apply"),
 				            0, "apply_as", MODIFIER_APPLY_DATA);
-				
+
 				if (modifier_isSameTopology(md) && !modifier_isNonGeometrical(md)) {
 					uiItemEnumO(row, "OBJECT_OT_modifier_apply",
 					            CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Apply as Shape Key"),
 					            0, "apply_as", MODIFIER_APPLY_SHAPE);
 				}
 			}
-			
+
 			UI_block_lock_clear(block);
 			UI_block_lock_set(block, ob && ID_IS_LINKED(ob), ERROR_LIBDATA_MESSAGE);
-			
+
 			if (!ELEM(md->type, eModifierType_Fluidsim, eModifierType_Softbody, eModifierType_ParticleSystem,
 			           eModifierType_Cloth, eModifierType_Smoke))
 			{
@@ -1474,19 +1474,19 @@ static uiLayout *draw_modifier(
 				        "OBJECT_OT_modifier_copy");
 			}
 		}
-		
+
 		/* result is the layout block inside the box, that we return so that modifier settings can be drawn */
 		result = uiLayoutColumn(box, false);
 		block = uiLayoutAbsoluteBlock(box);
 	}
-	
+
 	/* error messages */
 	if (md->error) {
 		box = uiLayoutBox(column);
 		row = uiLayoutRow(box, false);
 		uiItemL(row, md->error, ICON_ERROR);
 	}
-	
+
 	return result;
 }
 
@@ -1511,9 +1511,9 @@ uiLayout *uiTemplateModifier(uiLayout *layout, bContext *C, PointerRNA *ptr)
 		RNA_warning("Expected modifier on object");
 		return NULL;
 	}
-	
+
 	UI_block_lock_set(uiLayoutGetBlock(layout), (ob && ID_IS_LINKED(ob)), ERROR_LIBDATA_MESSAGE);
-	
+
 	/* find modifier and draw it */
 	cageIndex = modifiers_getCageIndex(scene, ob, &lastCageIndex, 0);
 
@@ -1630,7 +1630,7 @@ static void do_constraint_panels(bContext *C, void *ob_pt, int event)
 	 *
 	 * object_test_constraints(ob);
 	 * if (ob->pose) BKE_pose_update_constraint_flags(ob->pose); */
-	
+
 	if (ob->type == OB_ARMATURE) DEG_id_tag_update(&ob->id, OB_RECALC_DATA | OB_RECALC_OB);
 	else DEG_id_tag_update(&ob->id, OB_RECALC_OB);
 
@@ -1662,7 +1662,7 @@ static uiLayout *draw_constraint(uiLayout *layout, Object *ob, bConstraint *con)
 	}
 	else
 		BLI_strncpy(typestr, IFACE_(cti->name), sizeof(typestr));
-		
+
 	/* determine whether constraint is proxy protected or not */
 	if (BKE_constraints_proxylocked_owner(ob, pchan))
 		proxy_protected = (con->flag & CONSTRAINT_PROXY_LOCAL) == 0;
@@ -1696,34 +1696,34 @@ static uiLayout *draw_constraint(uiLayout *layout, Object *ob, bConstraint *con)
 
 	if (con->flag & CONSTRAINT_DISABLE)
 		uiLayoutSetRedAlert(row, true);
-	
+
 	if (proxy_protected == 0) {
 		uiItemR(row, &ptr, "name", 0, "", ICON_NONE);
 	}
 	else
 		uiItemL(row, con->name, ICON_NONE);
-	
+
 	uiLayoutSetRedAlert(row, false);
-	
+
 	/* proxy-protected constraints cannot be edited, so hide up/down + close buttons */
 	if (proxy_protected) {
 		UI_block_emboss_set(block, UI_EMBOSS_NONE);
-		
+
 		/* draw a ghost icon (for proxy) and also a lock beside it, to show that constraint is "proxy locked" */
 		uiDefIconBut(block, UI_BTYPE_BUT, B_CONSTRAINT_TEST, ICON_GHOST, xco + 12.2f * UI_UNIT_X, yco, 0.95f * UI_UNIT_X, 0.95f * UI_UNIT_Y,
 		             NULL, 0.0, 0.0, 0.0, 0.0, TIP_("Proxy Protected"));
 		uiDefIconBut(block, UI_BTYPE_BUT, B_CONSTRAINT_TEST, ICON_LOCKED, xco + 13.1f * UI_UNIT_X, yco, 0.95f * UI_UNIT_X, 0.95f * UI_UNIT_Y,
 		             NULL, 0.0, 0.0, 0.0, 0.0, TIP_("Proxy Protected"));
-		
+
 		UI_block_emboss_set(block, UI_EMBOSS);
 	}
 	else {
 		short prev_proxylock, show_upbut, show_downbut;
-		
-		/* Up/Down buttons: 
+
+		/* Up/Down buttons:
 		 *	Proxy-constraints are not allowed to occur after local (non-proxy) constraints
 		 *	as that poses problems when restoring them, so disable the "up" button where
-		 *	it may cause this situation. 
+		 *	it may cause this situation.
 		 *
 		 *  Up/Down buttons should only be shown (or not grayed - todo) if they serve some purpose.
 		 */
@@ -1736,29 +1736,29 @@ static uiLayout *draw_constraint(uiLayout *layout, Object *ob, bConstraint *con)
 		}
 		else
 			prev_proxylock = 0;
-			
+
 		show_upbut = ((prev_proxylock == 0) && (con->prev));
 		show_downbut = (con->next) ? 1 : 0;
-		
+
 		/* enabled */
 		UI_block_emboss_set(block, UI_EMBOSS_NONE);
 		uiItemR(row, &ptr, "mute", 0, "",
 		        (con->flag & CONSTRAINT_OFF) ? ICON_RESTRICT_VIEW_ON : ICON_RESTRICT_VIEW_OFF);
 		UI_block_emboss_set(block, UI_EMBOSS);
-		
+
 		uiLayoutSetOperatorContext(row, WM_OP_INVOKE_DEFAULT);
-		
+
 		/* up/down */
 		if (show_upbut || show_downbut) {
 			UI_block_align_begin(block);
 			if (show_upbut)
 				uiItemO(row, "", ICON_TRIA_UP, "CONSTRAINT_OT_move_up");
-				
+
 			if (show_downbut)
 				uiItemO(row, "", ICON_TRIA_DOWN, "CONSTRAINT_OT_move_down");
 			UI_block_align_end(block);
 		}
-		
+
 		/* Close 'button' - emboss calls here disable drawing of 'button' behind X */
 		UI_block_emboss_set(block, UI_EMBOSS_NONE);
 		uiItemO(row, "", ICON_X, "CONSTRAINT_OT_delete");
@@ -1803,7 +1803,7 @@ uiLayout *uiTemplateConstraint(uiLayout *layout, PointerRNA *ptr)
 		RNA_warning("Expected constraint on object");
 		return NULL;
 	}
-	
+
 	UI_block_lock_set(uiLayoutGetBlock(layout), (ob && ID_IS_LINKED(ob)), ERROR_LIBDATA_MESSAGE);
 
 	/* hrms, the temporal constraint should not draw! */
@@ -1922,7 +1922,7 @@ void uiTemplatePreview(
 		if (GS(pid->name) == ID_MA || (pparent && GS(pparent->name) == ID_MA)) {
 			if (GS(pid->name) == ID_MA) ma = (Material *)pid;
 			else ma = (Material *)pparent;
-			
+
 			/* Create RNA Pointer */
 			RNA_pointer_create(&ma->id, &RNA_Material, ma, &material_ptr);
 
@@ -1934,7 +1934,7 @@ void uiTemplatePreview(
 		if (pr_texture) {
 			/* Create RNA Pointer */
 			RNA_pointer_create(id, &RNA_Texture, tex, &texture_ptr);
-			
+
 			uiLayoutRow(layout, true);
 			uiDefButS(block, UI_BTYPE_ROW, B_MATPRV, IFACE_("Texture"),  0, 0, UI_UNIT_X * 10, UI_UNIT_Y,
 			          pr_texture, 10, TEX_PR_TEXTURE, 0, 0, "");
@@ -1956,7 +1956,7 @@ void uiTemplatePreview(
 			}
 			uiDefButS(block, UI_BTYPE_ROW, B_MATPRV, IFACE_("Both"),  0, 0, UI_UNIT_X * 10, UI_UNIT_Y,
 			          pr_texture, 10, TEX_PR_BOTH, 0, 0, "");
-			
+
 			/* Alpha button for texture preview */
 			if (*pr_texture != TEX_PR_OTHER) {
 				row = uiLayoutRow(layout, false);
@@ -2238,7 +2238,7 @@ static uiBlock *ui_icon_view_menu_cb(bContext *C, ARegion *ar, void *arg_litem)
 	if (free) {
 		MEM_freeN((void *)item);
 	}
-	
+
 	return block;
 }
 
@@ -2416,26 +2416,26 @@ static void curvemap_buttons_zoom_out(bContext *C, void *cumap_v, void *UNUSED(u
 	if (BLI_rctf_size_x(&cumap->curr) < 20.0f * BLI_rctf_size_x(&cumap->clipr)) {
 		d = d1 = 0.15f * BLI_rctf_size_x(&cumap->curr);
 
-		if (cumap->flag & CUMA_DO_CLIP) 
+		if (cumap->flag & CUMA_DO_CLIP)
 			if (cumap->curr.xmin - d < cumap->clipr.xmin)
 				d1 = cumap->curr.xmin - cumap->clipr.xmin;
 		cumap->curr.xmin -= d1;
 
 		d1 = d;
-		if (cumap->flag & CUMA_DO_CLIP) 
+		if (cumap->flag & CUMA_DO_CLIP)
 			if (cumap->curr.xmax + d > cumap->clipr.xmax)
 				d1 = -cumap->curr.xmax + cumap->clipr.xmax;
 		cumap->curr.xmax += d1;
 
 		d = d1 = 0.15f * BLI_rctf_size_y(&cumap->curr);
 
-		if (cumap->flag & CUMA_DO_CLIP) 
+		if (cumap->flag & CUMA_DO_CLIP)
 			if (cumap->curr.ymin - d < cumap->clipr.ymin)
 				d1 = cumap->curr.ymin - cumap->clipr.ymin;
 		cumap->curr.ymin -= d1;
 
 		d1 = d;
-		if (cumap->flag & CUMA_DO_CLIP) 
+		if (cumap->flag & CUMA_DO_CLIP)
 			if (cumap->curr.ymax + d > cumap->clipr.ymax)
 				d1 = -cumap->curr.ymax + cumap->clipr.ymax;
 		cumap->curr.ymax += d1;
@@ -2449,7 +2449,7 @@ static void curvemap_buttons_setclip(bContext *UNUSED(C), void *cumap_v, void *U
 	CurveMapping *cumap = cumap_v;
 
 	curvemapping_changed(cumap, false);
-}	
+}
 
 static void curvemap_buttons_delete(bContext *C, void *cb_v, void *cumap_v)
 {
@@ -2622,15 +2622,15 @@ static void curvemap_buttons_reset(bContext *C, void *cb_v, void *cumap_v)
 {
 	CurveMapping *cumap = cumap_v;
 	int a;
-	
+
 	cumap->preset = CURVE_PRESET_LINE;
 	for (a = 0; a < CM_TOT; a++)
 		curvemap_reset(cumap->cm + a, &cumap->clipr, cumap->preset, CURVEMAP_SLOPE_POSITIVE);
-	
+
 	cumap->black[0] = cumap->black[1] = cumap->black[2] = 0.0f;
 	cumap->white[0] = cumap->white[1] = cumap->white[2] = 1.0f;
 	curvemapping_set_black_white(cumap, NULL, NULL);
-	
+
 	curvemapping_changed(cumap, false);
 
 	rna_update_cb(C, cb_v, NULL);
@@ -2700,7 +2700,7 @@ static void curvemap_buttons_layout(
 		/* HSV */
 		sub = uiLayoutRow(row, true);
 		uiLayoutSetAlignment(sub, UI_LAYOUT_ALIGN_LEFT);
-		
+
 		if (cumap->cm[0].curve) {
 			bt = uiDefButI(block, UI_BTYPE_ROW, 0, "H", 0, 0, dx, dx, &cumap->cur, 0.0, 0.0, 0.0, 0.0, "");
 			UI_but_func_set(bt, curvemap_buttons_redraw, NULL, NULL);
@@ -2716,7 +2716,7 @@ static void curvemap_buttons_layout(
 	}
 	else
 		uiLayoutSetAlignment(row, UI_LAYOUT_ALIGN_RIGHT);
-	
+
 	if (labeltype == 'h')
 		bg = UI_GRAD_H;
 
@@ -2906,7 +2906,7 @@ void uiTemplateColorPicker(
 	if (cubic)
 		but->flag |= UI_BUT_COLOR_CUBIC;
 
-	
+
 	if (value_slider) {
 		switch (U.color_picker_type) {
 			case USER_CP_CIRCLE_HSL:
@@ -3005,7 +3005,7 @@ static void handle_layer_buttons(bContext *C, void *arg1, void *arg2)
 
 	if (!shift) {
 		tot = RNA_property_array_length(&but->rnapoin, but->rnaprop);
-		
+
 		/* Normally clicking only selects one layer */
 		RNA_property_boolean_set_index(&but->rnapoin, but->rnaprop, cur, true);
 		for (i = 0; i < tot; ++i) {
@@ -3037,8 +3037,8 @@ void uiTemplateLayers(
 		RNA_warning("layers property not found: %s.%s", RNA_struct_identifier(ptr->type), propname);
 		return;
 	}
-	
-	/* the number of layers determines the way we group them 
+
+	/* the number of layers determines the way we group them
 	 *	- we want 2 rows only (for now)
 	 *	- the number of columns (cols) is the total number of buttons per row
 	 *	  the 'remainder' is added to this, as it will be ok to have first row slightly wider if need be
@@ -3058,12 +3058,12 @@ void uiTemplateLayers(
 		if (RNA_property_array_length(used_ptr, used_prop) < layers)
 			used_prop = NULL;
 	}
-	
+
 	/* layers are laid out going across rows, with the columns being divided into groups */
-	
+
 	for (group = 0; group < groups; group++) {
 		uCol = uiLayoutColumn(layout, true);
-		
+
 		for (row = 0; row < 2; row++) {
 			uiBlock *block;
 			uiBut *but;
@@ -3071,7 +3071,7 @@ void uiTemplateLayers(
 			uRow = uiLayoutRow(uCol, true);
 			block = uiLayoutGetBlock(uRow);
 			layer = groups * cols_per_group * row + cols_per_group * group;
-			
+
 			/* add layers as toggle buts */
 			for (col = 0; (col < cols_per_group) && (layer < layers); col++, layer++) {
 				int icon = 0;
@@ -3081,7 +3081,7 @@ void uiTemplateLayers(
 					icon = ICON_LAYER_ACTIVE;
 				else if (used_prop && RNA_property_boolean_get_index(used_ptr, used_prop, layer))
 					icon = ICON_LAYER_USED;
-				
+
 				but = uiDefAutoButR(block, ptr, prop, layer, "", icon, 0, 0, UI_UNIT_X / 2, UI_UNIT_Y / 2);
 				UI_but_func_set(but, handle_layer_buttons, but, SET_INT_IN_POINTER(layer));
 				but->type = UI_BTYPE_TOGGLE;
@@ -3778,7 +3778,7 @@ void uiTemplateList(
 static void operator_call_cb(bContext *C, void *UNUSED(arg1), void *arg2)
 {
 	wmOperatorType *ot = arg2;
-	
+
 	if (ot)
 		WM_operator_name_call_ptr(C, ot, WM_OP_INVOKE_DEFAULT, NULL);
 }
@@ -3827,10 +3827,10 @@ static void operator_search_cb(const bContext *C, void *UNUSED(arg), const char
 			if (WM_operator_poll((bContext *)C, ot)) {
 				char name[256];
 				int len = strlen(ot_ui_name);
-				
+
 				/* display name for menu, can hold hotkey */
 				BLI_strncpy(name, ot_ui_name, sizeof(name));
-				
+
 				/* check for hotkey */
 				if (len < sizeof(name) - 6) {
 					if (WM_key_event_operator_string(
@@ -3840,7 +3840,7 @@ static void operator_search_cb(const bContext *C, void *UNUSED(arg), const char
 						name[len] = UI_SEP_CHAR;
 					}
 				}
-				
+
 				if (false == UI_search_item_add(items, name, ot, 0))
 					break;
 			}
@@ -3860,7 +3860,7 @@ void uiTemplateOperatorSearch(uiLayout *layout)
 	uiBlock *block;
 	uiBut *but;
 	static char search[256] = "";
-		
+
 	block = uiLayoutGetBlock(layout);
 	UI_block_layout_set_current(block, layout);
 
@@ -4073,7 +4073,7 @@ void uiTemplateRunningJobs(uiLayout *layout, bContext *C)
 	uiBlock *block;
 	void *owner = NULL;
 	int handle_event, icon = 0;
-	
+
 	block = uiLayoutGetBlock(layout);
 	UI_block_layout_set_current(block, layout);
 
@@ -4157,7 +4157,7 @@ void uiTemplateRunningJobs(uiLayout *layout, bContext *C)
 	if (owner) {
 		const uiFontStyle *fstyle = UI_FSTYLE_WIDGET;
 		bool active = !(G.is_break || WM_jobs_is_stopped(wm, owner));
-		
+
 		uiLayout *row = uiLayoutRow(layout, false);
 		block = uiLayoutGetBlock(row);
 
@@ -4209,29 +4209,29 @@ void uiTemplateReportsBanner(uiLayout *layout, bContext *C)
 	ReportList *reports = CTX_wm_reports(C);
 	Report *report = BKE_reports_last_displayable(reports);
 	ReportTimerInfo *rti;
-	
+
 	uiLayout *ui_abs;
 	uiBlock *block;
 	uiBut *but;
 	uiStyle *style = UI_style_get();
 	int width;
 	int icon;
-	
+
 	/* if the report display has timed out, don't show */
 	if (!reports->reporttimer) return;
-	
+
 	rti = (ReportTimerInfo *)reports->reporttimer->customdata;
-	
+
 	if (!rti || rti->widthfac == 0.0f || !report) return;
-	
+
 	ui_abs = uiLayoutAbsolute(layout, false);
 	block = uiLayoutGetBlock(ui_abs);
-	
+
 	UI_fontstyle_set(&style->widgetlabel);
 	width = BLF_width(style->widgetlabel.uifont_id, report->message, report->len);
 	width = min_ii((int)(rti->widthfac * width), width);
 	width = max_ii(width, 10);
-	
+
 	/* make a box around the report to make it stand out */
 	UI_block_align_begin(block);
 	but = uiDefBut(block, UI_BTYPE_ROUNDBOX, 0, "", 0, 0, UI_UNIT_X + 10, UI_UNIT_Y, NULL, 0.0f, 0.0f, 0, 0, "");
@@ -4245,12 +4245,12 @@ void uiTemplateReportsBanner(uiLayout *layout, bContext *C)
 	but->col[3] = 255;
 
 	UI_block_align_end(block);
-	
-	
+
+
 	/* icon and report message on top */
 	icon = UI_icon_from_report_type(report->type);
-	
-	/* XXX: temporary operator to dump all reports to a text block, but only if more than 1 report 
+
+	/* XXX: temporary operator to dump all reports to a text block, but only if more than 1 report
 	 * to be shown instead of icon when appropriate...
 	 */
 	UI_block_emboss_set(block, UI_EMBOSS_NONE);
@@ -4262,7 +4262,7 @@ void uiTemplateReportsBanner(uiLayout *layout, bContext *C)
 		uiDefIconBut(block, UI_BTYPE_LABEL, 0, icon, 2, 0, UI_UNIT_X, UI_UNIT_Y, NULL, 0.0f, 0.0f, 0, 0, "");
 
 	UI_block_emboss_set(block, UI_EMBOSS);
-	
+
 	uiDefBut(block, UI_BTYPE_LABEL, 0, report->message, UI_UNIT_X + 10, 0, UI_UNIT_X + width, UI_UNIT_Y,
 	         NULL, 0.0f, 0.0f, 0, 0, "");
 }
@@ -4283,7 +4283,7 @@ static void template_keymap_item_properties(uiLayout *layout, const char *title,
 
 	if (title)
 		uiItemL(layout, title, ICON_NONE);
-	
+
 	flow = uiLayoutColumnFlow(layout, 2, false);
 
 	RNA_STRUCT_BEGIN (ptr, prop)
@@ -4413,17 +4413,17 @@ static uiBlock *component_menu(bContext *C, ARegion *ar, void *args_v)
 	ComponentMenuArgs *args = (ComponentMenuArgs *)args_v;
 	uiBlock *block;
 	uiLayout *layout;
-	
+
 	block = UI_block_begin(C, ar, __func__, UI_EMBOSS);
 	UI_block_flag_enable(block, UI_BLOCK_KEEP_OPEN);
-	
+
 	layout = uiLayoutColumn(UI_block_layout(block, UI_LAYOUT_VERTICAL, UI_LAYOUT_PANEL, 0, 0, UI_UNIT_X * 6, UI_UNIT_Y, 0, UI_style_get()), 0);
-	
+
 	uiItemR(layout, &args->ptr, args->propname, UI_ITEM_R_EXPAND, "", ICON_NONE);
-	
+
 	UI_block_bounds_set_normal(block, 6);
 	UI_block_direction_set(block, UI_DIR_DOWN);
-	
+
 	return block;
 }
 void uiTemplateComponentMenu(uiLayout *layout, PointerRNA *ptr, const char *propname, const char *name)
@@ -4431,10 +4431,10 @@ void uiTemplateComponentMenu(uiLayout *layout, PointerRNA *ptr, const char *prop
 	ComponentMenuArgs *args = MEM_callocN(sizeof(ComponentMenuArgs), "component menu template args");
 	uiBlock *block;
 	uiBut *but;
-	
+
 	args->ptr = *ptr;
 	BLI_strncpy(args->propname, propname, sizeof(args->propname));
-	
+
 	block = uiLayoutGetBlock(layout);
 	UI_block_align_begin(block);
 
@@ -4443,7 +4443,7 @@ void uiTemplateComponentMenu(uiLayout *layout, PointerRNA *ptr, const char *prop
 	but->rnapoin = *ptr;
 	but->rnaprop = RNA_struct_find_property(ptr, propname);
 	but->rnaindex = 0;
-	
+
 	UI_block_align_end(block);
 }
 
@@ -4453,17 +4453,17 @@ void uiTemplateNodeSocket(uiLayout *layout, bContext *UNUSED(C), float *color)
 {
 	uiBlock *block;
 	uiBut *but;
-	
+
 	block = uiLayoutGetBlock(layout);
 	UI_block_align_begin(block);
-	
+
 	/* XXX using explicit socket colors is not quite ideal.
 	 * Eventually it should be possible to use theme colors for this purpose,
 	 * but this requires a better design for extendable color palettes in user prefs.
 	 */
 	but = uiDefBut(block, UI_BTYPE_NODE_SOCKET, 0, "", 0, 0, UI_UNIT_X, UI_UNIT_Y, NULL, 0, 0, 0, 0, "");
 	rgba_float_to_uchar(but->col, color);
-	
+
 	UI_block_align_end(block);
 }
 
diff --git a/source/blender/editors/interface/interface_utils.c b/source/blender/editors/interface/interface_utils.c
index 5841a61acc5..e049416ce07 100644
--- a/source/blender/editors/interface/interface_utils.c
+++ b/source/blender/editors/interface/interface_utils.c
@@ -4,7 +4,7 @@
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version. 
+ * of the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -17,7 +17,7 @@
  *
  * The Original Code is Copyright (C) 2009 Blender Foundation.
  * All rights reserved.
- * 
+ *
  * Contributor(s): Blender Foundation
  *
  * ***** END GPL LICENSE BLOCK *****
@@ -71,7 +71,7 @@ uiBut *uiDefAutoButR(uiBlock *block, PointerRNA *ptr, PropertyRNA *prop, int ind
 
 			if (arraylen && index == -1)
 				return NULL;
-			
+
 			if (icon && name && name[0] == '\0')
 				but = uiDefIconButR_prop(block, UI_BTYPE_ICON_TOGGLE, 0, icon, x1, y1, x2, y2, ptr, prop, index, 0, 0, -1, -1, NULL);
 			else if (icon)
@@ -309,7 +309,7 @@ void ui_rna_collection_search_cb(const struct bContext *C, void *arg, const char
 }
 
 
-/***************************** ID Utilities *******************************/ 
+/***************************** ID Utilities *******************************/
 int UI_icon_from_id(ID *id)
 {
 	Object *ob;
@@ -318,7 +318,7 @@ int UI_icon_from_id(ID *id)
 
 	if (id == NULL)
 		return ICON_NONE;
-	
+
 	idcode = GS(id->name);
 
 	/* exception for objects */
diff --git a/source/blender/editors/interface/interface_widgets.c b/source/blender/editors/interface/interface_widgets.c
index cdc95d4fb32..0cea9824249 100644
--- a/source/blender/editors/interface/interface_widgets.c
+++ b/source/blender/editors/interface/interface_widgets.c
@@ -4,7 +4,7 @@
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version. 
+ * of the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -17,7 +17,7 @@
  *
  * The Original Code is Copyright (C) 2009 Blender Foundation.
  * All rights reserved.
- * 
+ *
  * Contributor(s): Blender Foundation
  *
  * ***** END GPL LICENSE BLOCK *****
@@ -106,10 +106,10 @@ typedef struct uiWidgetTrias {
 	unsigned int tot;
 	int type;
 	float size, center[2];
-	
+
 	float vec[16][2];
 	const unsigned int (*index)[3];
-	
+
 } uiWidgetTrias;
 
 /* max as used by round_box__edges */
@@ -123,9 +123,9 @@ typedef struct uiWidgetBase {
 	float outer_v[WIDGET_SIZE_MAX][2];
 	float inner_v[WIDGET_SIZE_MAX][2];
 	float inner_uv[WIDGET_SIZE_MAX][2];
-	
+
 	bool draw_inner, draw_outline, draw_emboss;
-	
+
 	uiWidgetTrias tria1;
 	uiWidgetTrias tria2;
 
@@ -134,22 +134,22 @@ typedef struct uiWidgetBase {
 } uiWidgetBase;
 
 /** uiWidgetType: for time being only for visual appearance,
- * later, a handling callback can be added too 
+ * later, a handling callback can be added too
  */
 typedef struct uiWidgetType {
-	
+
 	/* pointer to theme color definition */
 	uiWidgetColors *wcol_theme;
 	uiWidgetStateColors *wcol_state;
-	
+
 	/* converted colors for state */
 	uiWidgetColors wcol;
-	
+
 	void (*state)(struct uiWidgetType *, int state);
 	void (*draw)(uiWidgetColors *, rcti *, int state, int roundboxalign);
 	void (*custom)(uiBut *, uiWidgetColors *, rcti *, int state, int roundboxalign);
 	void (*text)(uiFontStyle *, uiWidgetColors *, uiBut *, rcti *);
-	
+
 } uiWidgetType;
 
 
@@ -589,9 +589,9 @@ static int round_box_shadow_edges(float (*vert)[2], const rcti *rect, float rad,
 	float vec[WIDGET_CURVE_RESOLU][2];
 	float minx, miny, maxx, maxy;
 	int a, tot = 0;
-	
+
 	rad += step;
-	
+
 	if (2.0f * rad > BLI_rcti_size_y(rect))
 		rad = 0.5f * BLI_rcti_size_y(rect);
 
@@ -599,13 +599,13 @@ static int round_box_shadow_edges(float (*vert)[2], const rcti *rect, float rad,
 	miny = rect->ymin - step;
 	maxx = rect->xmax + step;
 	maxy = rect->ymax + step;
-	
+
 	/* mult */
 	for (a = 0; a < WIDGET_CURVE_RESOLU; a++) {
 		vec[a][0] = rad * cornervec[a][0];
 		vec[a][1] = rad * cornervec[a][1];
 	}
-	
+
 	/* start with left-top, anti clockwise */
 	if (roundboxalign & UI_CNR_TOP_LEFT) {
 		for (a = 0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
@@ -619,7 +619,7 @@ static int round_box_shadow_edges(float (*vert)[2], const rcti *rect, float rad,
 			vert[tot][1] = maxy;
 		}
 	}
-	
+
 	if (roundboxalign & UI_CNR_BOTTOM_LEFT) {
 		for (a = 0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
 			vert[tot][0] = minx + vec[a][1];
@@ -632,7 +632,7 @@ static int round_box_shadow_edges(float (*vert)[2], const rcti *rect, float rad,
 			vert[tot][1] = miny;
 		}
 	}
-	
+
 	if (roundboxalign & UI_CNR_BOTTOM_RIGHT) {
 		for (a = 0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
 			vert[tot][0] = maxx - rad + vec[a][0];
@@ -645,7 +645,7 @@ static int round_box_shadow_edges(float (*vert)[2], const rcti *rect, float rad,
 			vert[tot][1] = miny;
 		}
 	}
-	
+
 	if (roundboxalign & UI_CNR_TOP_RIGHT) {
 		for (a = 0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
 			vert[tot][0] = maxx - vec[a][1];
@@ -680,7 +680,7 @@ static void round_box__edges(uiWidgetBase *wt, int roundboxalign, const rcti *re
 
 	minsize = min_ii(BLI_rcti_size_x(rect) * hnum,
 	                 BLI_rcti_size_y(rect) * vnum);
-	
+
 	if (2.0f * rad > minsize)
 		rad = 0.5f * minsize;
 
@@ -705,17 +705,17 @@ static void round_box__edges(uiWidgetBase *wt, int roundboxalign, const rcti *re
 		vec[a][0] = rad * cornervec[a][0];
 		vec[a][1] = rad * cornervec[a][1];
 	}
-	
+
 	/* corner left-bottom */
 	if (roundboxalign & UI_CNR_BOTTOM_LEFT) {
-		
+
 		for (a = 0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
 			wt->inner_v[tot][0] = minxi + veci[a][1];
 			wt->inner_v[tot][1] = minyi + radi - veci[a][0];
-			
+
 			wt->outer_v[tot][0] = minx + vec[a][1];
 			wt->outer_v[tot][1] = miny + rad - vec[a][0];
-			
+
 			wt->inner_uv[tot][0] = facxi * (wt->inner_v[tot][0] - minxi);
 			wt->inner_uv[tot][1] = facyi * (wt->inner_v[tot][1] - minyi);
 		}
@@ -723,26 +723,26 @@ static void round_box__edges(uiWidgetBase *wt, int roundboxalign, const rcti *re
 	else {
 		wt->inner_v[tot][0] = minxi;
 		wt->inner_v[tot][1] = minyi;
-		
+
 		wt->outer_v[tot][0] = minx;
 		wt->outer_v[tot][1] = miny;
 
 		wt->inner_uv[tot][0] = 0.0f;
 		wt->inner_uv[tot][1] = 0.0f;
-		
+
 		tot++;
 	}
-	
+
 	/* corner right-bottom */
 	if (roundboxalign & UI_CNR_BOTTOM_RIGHT) {
-		
+
 		for (a = 0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
 			wt->inner_v[tot][0] = maxxi - radi + veci[a][0];
 			wt->inner_v[tot][1] = minyi + veci[a][1];
-			
+
 			wt->outer_v[tot][0] = maxx - rad + vec[a][0];
 			wt->outer_v[tot][1] = miny + vec[a][1];
-			
+
 			wt->inner_uv[tot][0] = facxi * (wt->inner_v[tot][0] - minxi);
 			wt->inner_uv[tot][1] = facyi * (wt->inner_v[tot][1] - minyi);
 		}
@@ -750,28 +750,28 @@ static void round_box__edges(uiWidgetBase *wt, int roundboxalign, const rcti *re
 	else {
 		wt->inner_v[tot][0] = maxxi;
 		wt->inner_v[tot][1] = minyi;
-		
+
 		wt->outer_v[tot][0] = maxx;
 		wt->outer_v[tot][1] = miny;
 
 		wt->inner_uv[tot][0] = 1.0f;
 		wt->inner_uv[tot][1] = 0.0f;
-		
+
 		tot++;
 	}
-	
+
 	wt->halfwayvert = tot;
-	
+
 	/* corner right-top */
 	if (roundboxalign & UI_CNR_TOP_RIGHT) {
-		
+
 		for (a = 0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
 			wt->inner_v[tot][0] = maxxi - veci[a][1];
 			wt->inner_v[tot][1] = maxyi - radi + veci[a][0];
-			
+
 			wt->outer_v[tot][0] = maxx - vec[a][1];
 			wt->outer_v[tot][1] = maxy - rad + vec[a][0];
-			
+
 			wt->inner_uv[tot][0] = facxi * (wt->inner_v[tot][0] - minxi);
 			wt->inner_uv[tot][1] = facyi * (wt->inner_v[tot][1] - minyi);
 		}
@@ -779,42 +779,42 @@ static void round_box__edges(uiWidgetBase *wt, int roundboxalign, const rcti *re
 	else {
 		wt->inner_v[tot][0] = maxxi;
 		wt->inner_v[tot][1] = maxyi;
-		
+
 		wt->outer_v[tot][0] = maxx;
 		wt->outer_v[tot][1] = maxy;
-		
+
 		wt->inner_uv[tot][0] = 1.0f;
 		wt->inner_uv[tot][1] = 1.0f;
-		
+
 		tot++;
 	}
-	
+
 	/* corner left-top */
 	if (roundboxalign & UI_CNR_TOP_LEFT) {
-		
+
 		for (a = 0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
 			wt->inner_v[tot][0] = minxi + radi - veci[a][0];
 			wt->inner_v[tot][1] = maxyi - veci[a][1];
-			
+
 			wt->outer_v[tot][0] = minx + rad - vec[a][0];
 			wt->outer_v[tot][1] = maxy - vec[a][1];
-			
+
 			wt->inner_uv[tot][0] = facxi * (wt->inner_v[tot][0] - minxi);
 			wt->inner_uv[tot][1] = facyi * (wt->inner_v[tot][1] - minyi);
 		}
-		
+
 	}
 	else {
-		
+
 		wt->inner_v[tot][0] = minxi;
 		wt->inner_v[tot][1] = maxyi;
-		
+
 		wt->outer_v[tot][0] = minx;
 		wt->outer_v[tot][1] = maxy;
-		
+
 		wt->inner_uv[tot][0] = 0.0f;
 		wt->inner_uv[tot][1] = 1.0f;
-		
+
 		tot++;
 	}
 
@@ -953,17 +953,17 @@ static void shape_preset_trias_from_rect_checkmark(uiWidgetTrias *tria, const rc
 	float centx, centy, size;
 	int a;
 	tria->type = ROUNDBOX_TRIA_CHECK;
-	
+
 	/* center position and size */
 	tria->center[0] = centx = rect->xmin + 0.5f * BLI_rcti_size_y(rect);
 	tria->center[1] = centy = rect->ymin + 0.5f * BLI_rcti_size_y(rect);
 	tria->size = size = 0.5f * BLI_rcti_size_y(rect);
-	
+
 	for (a = 0; a < 6; a++) {
 		tria->vec[a][0] = size * g_shape_preset_checkmark_vert[a][0] + centx;
 		tria->vec[a][1] = size * g_shape_preset_checkmark_vert[a][1] + centy;
 	}
-	
+
 	tria->tot = 4;
 	tria->index = g_shape_preset_checkmark_face;
 }
@@ -1256,17 +1256,17 @@ static void widget_draw_icon_ex(
 {
 	float xs = 0.0f, ys = 0.0f;
 	float aspect, height;
-	
+
 	if (but->flag & UI_BUT_ICON_PREVIEW) {
 		glEnable(GL_BLEND);
 		widget_draw_preview(icon, alpha, rect);
 		glDisable(GL_BLEND);
 		return;
 	}
-	
+
 	/* this icon doesn't need draw... */
 	if (icon == ICON_BLANK1 && (but->flag & UI_BUT_ICON_SUBMENU) == 0) return;
-	
+
 	aspect = but->block->aspect / UI_DPI_FAC;
 	height = icon_size / aspect;
 
@@ -1287,12 +1287,12 @@ static void widget_draw_icon_ex(
 			alpha *= 0.5f;
 		}
 	}
-	
+
 	glEnable(GL_BLEND);
-	
+
 	if (icon && icon != ICON_BLANK1) {
 		float ofs = 1.0f / aspect;
-		
+
 		if (but->drawflag & UI_BUT_ICON_LEFT) {
 			/* special case - icon_only pie buttons */
 			if (ui_block_is_pie_menu(but->block) && !ELEM(but->type, UI_BTYPE_MENU, UI_BTYPE_POPOVER) && but->str && but->str[0] == '\0')
@@ -1330,10 +1330,10 @@ static void widget_draw_icon_ex(
 	if (show_menu_icon) {
 		xs = rect->xmax - UI_DPI_ICON_SIZE - aspect;
 		ys = (rect->ymin + rect->ymax - height) / 2.0f;
-		
+
 		UI_icon_draw_aspect(xs, ys, ICON_RIGHTARROW_THIN, aspect, alpha);
 	}
-	
+
 	glDisable(GL_BLEND);
 }
 
@@ -1606,16 +1606,16 @@ static void ui_text_clip_right_label(uiFontStyle *fstyle, uiBut *but, const rcti
 	char *cpoin = NULL;
 	int drawstr_len = strlen(but->drawstr);
 	const char *cpend = but->drawstr + drawstr_len;
-	
+
 	/* need to set this first */
 	UI_fontstyle_set(fstyle);
-	
+
 	if (fstyle->kerning == 1) /* for BLF_width */
 		BLF_enable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
-	
+
 	but->strwidth = BLF_width(fstyle->uifont_id, but->drawstr, sizeof(but->drawstr));
 	but->ofs = 0;
-	
+
 
 	/* First shorten num-buttons eg,
 	 *   Translucency: 0.000
@@ -1625,10 +1625,10 @@ static void ui_text_clip_right_label(uiFontStyle *fstyle, uiBut *but, const rcti
 
 	/* find the space after ':' separator */
 	cpoin = strrchr(but->drawstr, ':');
-	
+
 	if (cpoin && (cpoin < cpend - 2)) {
 		char *cp2 = cpoin;
-		
+
 		/* chop off the leading text, starting from the right */
 		while (but->strwidth > okwidth && cp2 > but->drawstr) {
 			const char *prev_utf8 = BLI_str_find_prev_char_utf8(but->drawstr, cp2);
@@ -1640,12 +1640,12 @@ static void ui_text_clip_right_label(uiFontStyle *fstyle, uiBut *but, const rcti
 
 			drawstr_len -= bytes;
 			// BLI_assert(strlen(but->drawstr) == drawstr_len);
-			
+
 			but->strwidth = BLF_width(fstyle->uifont_id, but->drawstr + but->ofs, sizeof(but->drawstr) - but->ofs);
 			if (but->strwidth < 10) break;
 		}
-	
-	
+
+
 		/* after the leading text is gone, chop off the : and following space, with ofs */
 		while ((but->strwidth > okwidth) && (but->ofs < 2)) {
 			ui_text_clip_give_next_off(but, but->drawstr);
@@ -1664,7 +1664,7 @@ static void ui_text_clip_right_label(uiFontStyle *fstyle, uiBut *but, const rcti
 		but->strwidth = strwidth;
 		but->drawstr[drawstr_len] = 0;
 	}
-	
+
 	if (fstyle->kerning == 1)
 		BLF_disable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
 }
@@ -1726,17 +1726,17 @@ static void widget_draw_text(uiFontStyle *fstyle, uiWidgetColors *wcol, uiBut *b
 #endif
 
 	UI_fontstyle_set(fstyle);
-	
+
 	if (but->editstr || (but->drawflag & UI_BUT_TEXT_LEFT))
 		fstyle->align = UI_STYLE_TEXT_LEFT;
 	else if (but->drawflag & UI_BUT_TEXT_RIGHT)
 		fstyle->align = UI_STYLE_TEXT_RIGHT;
 	else
 		fstyle->align = UI_STYLE_TEXT_CENTER;
-	
+
 	if (fstyle->kerning == 1) /* for BLF_width */
 		BLF_enable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
-	
+
 
 	/* Special case: when we're entering text for multiple buttons,
 	 * don't draw the text for any of the multi-editing buttons */
@@ -1780,7 +1780,7 @@ static void widget_draw_text(uiFontStyle *fstyle, uiWidgetColors *wcol, uiBut *b
 		/* text button selection */
 		if ((but->selend - but->selsta) > 0) {
 			int selsta_draw, selwidth_draw;
-			
+
 			if (drawstr[0] != 0) {
 				/* We are drawing on top of widget bases. Flush cache. */
 				glEnable(GL_BLEND);
@@ -1858,7 +1858,7 @@ static void widget_draw_text(uiFontStyle *fstyle, uiWidgetColors *wcol, uiBut *b
 		}
 #endif
 	}
-	
+
 	if (fstyle->kerning == 1)
 		BLF_disable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
 
@@ -1879,7 +1879,7 @@ static void widget_draw_text(uiFontStyle *fstyle, uiWidgetColors *wcol, uiBut *b
 			}
 		}
 	}
-	
+
 #ifdef USE_NUMBUTS_LR_ALIGN
 	if (!drawstr_right && ELEM(but->type, UI_BTYPE_NUM, UI_BTYPE_NUM_SLIDER) &&
 	    /* if we're editing or multi-drag (fake editing), then use left alignment */
@@ -2116,10 +2116,10 @@ static struct uiWidgetColors wcol_num = {
 	{180, 180, 180, 255},
 	{153, 153, 153, 255},
 	{90, 90, 90, 255},
-	
+
 	{0, 0, 0, 255},
 	{255, 255, 255, 255},
-	
+
 	1,
 	-20, 0,
 	0,
@@ -2131,10 +2131,10 @@ static struct uiWidgetColors wcol_numslider = {
 	{180, 180, 180, 255},
 	{153, 153, 153, 255},
 	{128, 128, 128, 255},
-	
+
 	{0, 0, 0, 255},
 	{255, 255, 255, 255},
-	
+
 	1,
 	-20, 0,
 	0,
@@ -2146,10 +2146,10 @@ static struct uiWidgetColors wcol_text = {
 	{153, 153, 153, 255},
 	{153, 153, 153, 255},
 	{90, 90, 90, 255},
-	
+
 	{0, 0, 0, 255},
 	{255, 255, 255, 255},
-	
+
 	1,
 	0, 25,
 	0,
@@ -2161,10 +2161,10 @@ static struct uiWidgetColors wcol_option = {
 	{70, 70, 70, 255},
 	{70, 70, 70, 255},
 	{255, 255, 255, 255},
-	
+
 	{0, 0, 0, 255},
 	{255, 255, 255, 255},
-	
+
 	1,
 	15, -15,
 	0,
@@ -2177,10 +2177,10 @@ static struct uiWidgetColors wcol_menu = {
 	{70, 70, 70, 255},
 	{70, 70, 70, 255},
 	{255, 255, 255, 255},
-	
+
 	{255, 255, 255, 255},
 	{204, 204, 204, 255},
-	
+
 	1,
 	15, -15,
 	0,
@@ -2193,10 +2193,10 @@ static struct uiWidgetColors wcol_pulldown = {
 	{63, 63, 63, 255},
 	{86, 128, 194, 255},
 	{255, 255, 255, 255},
-	
+
 	{0, 0, 0, 255},
 	{0, 0, 0, 255},
-	
+
 	0,
 	25, -20,
 	0,
@@ -2209,10 +2209,10 @@ static struct uiWidgetColors wcol_menu_item = {
 	{0, 0, 0, 0},
 	{86, 128, 194, 255},
 	{172, 172, 172, 128},
-	
+
 	{255, 255, 255, 255},
 	{0, 0, 0, 255},
-	
+
 	1,
 	38, 0,
 	0,
@@ -2225,10 +2225,10 @@ static struct uiWidgetColors wcol_menu_back = {
 	{25, 25, 25, 230},
 	{45, 45, 45, 230},
 	{100, 100, 100, 255},
-	
+
 	{160, 160, 160, 255},
 	{255, 255, 255, 255},
-	
+
 	0,
 	25, -20,
 	0,
@@ -2273,10 +2273,10 @@ static struct uiWidgetColors wcol_radio = {
 	{70, 70, 70, 255},
 	{86, 128, 194, 255},
 	{255, 255, 255, 255},
-	
+
 	{255, 255, 255, 255},
 	{0, 0, 0, 255},
-	
+
 	1,
 	15, -15,
 	0,
@@ -2288,10 +2288,10 @@ static struct uiWidgetColors wcol_regular = {
 	{153, 153, 153, 255},
 	{100, 100, 100, 255},
 	{25, 25, 25, 255},
-	
+
 	{0, 0, 0, 255},
 	{255, 255, 255, 255},
-	
+
 	0,
 	0, 0,
 	0,
@@ -2303,10 +2303,10 @@ static struct uiWidgetColors wcol_tool = {
 	{153, 153, 153, 255},
 	{100, 100, 100, 255},
 	{25, 25, 25, 255},
-	
+
 	{0, 0, 0, 255},
 	{255, 255, 255, 255},
-	
+
 	1,
 	15, -15,
 	0,
@@ -2334,10 +2334,10 @@ static struct uiWidgetColors wcol_box = {
 	{128, 128, 128, 255},
 	{100, 100, 100, 255},
 	{25, 25, 25, 255},
-	
+
 	{0, 0, 0, 255},
 	{255, 255, 255, 255},
-	
+
 	0,
 	0, 0,
 	0,
@@ -2349,10 +2349,10 @@ static struct uiWidgetColors wcol_toggle = {
 	{153, 153, 153, 255},
 	{100, 100, 100, 255},
 	{25, 25, 25, 255},
-	
+
 	{0, 0, 0, 255},
 	{255, 255, 255, 255},
-	
+
 	0,
 	0, 0,
 	0,
@@ -2364,10 +2364,10 @@ static struct uiWidgetColors wcol_scroll = {
 	{80, 80, 80, 180},
 	{100, 100, 100, 180},
 	{128, 128, 128, 255},
-	
+
 	{0, 0, 0, 255},
 	{255, 255, 255, 255},
-	
+
 	1,
 	5, -5,
 	0,
@@ -2379,10 +2379,10 @@ static struct uiWidgetColors wcol_progress = {
 	{190, 190, 190, 255},
 	{100, 100, 100, 180},
 	{128, 128, 128, 255},
-	
+
 	{0, 0, 0, 255},
 	{255, 255, 255, 255},
-	
+
 	0,
 	0, 0,
 	0,
@@ -2394,10 +2394,10 @@ static struct uiWidgetColors wcol_list_item = {
 	{0, 0, 0, 0},
 	{86, 128, 194, 255},
 	{90, 90, 90, 255},
-	
+
 	{0, 0, 0, 255},
 	{255, 255, 255, 255},
-	
+
 	0,
 	0, 0,
 	0,
@@ -2425,10 +2425,10 @@ static struct uiWidgetColors wcol_tmp = {
 	{128, 128, 128, 255},
 	{100, 100, 100, 255},
 	{25, 25, 25, 255},
-	
+
 	{0, 0, 0, 255},
 	{255, 255, 255, 255},
-	
+
 	0,
 	0, 0,
 	0,
@@ -2528,7 +2528,7 @@ static void widget_state(uiWidgetType *wt, int state)
 			widget_state_blend(wt->wcol.inner, wcol_state->inner_overridden_sel, wcol_state->blend);
 
 		copy_v3_v3_char(wt->wcol.text, wt->wcol.text_sel);
-		
+
 		if (state & UI_SELECT)
 			SWAP(short, wt->wcol.shadetop, wt->wcol.shadedown);
 	}
@@ -2573,11 +2573,11 @@ static void widget_state_numslider(uiWidgetType *wt, int state)
 
 	/* call this for option button */
 	widget_state(wt, state);
-	
+
 	/* now, set the inner-part so that it reflects state settings too */
 	/* TODO: maybe we should have separate settings for the blending colors used for this case? */
 	if (state & UI_SELECT) {
-		
+
 		if (state & UI_BUT_ANIMATED_KEY)
 			widget_state_blend(wt->wcol.item, wcol_state->inner_key_sel, blend);
 		else if (state & UI_BUT_ANIMATED)
@@ -2606,10 +2606,10 @@ static void widget_state_numslider(uiWidgetType *wt, int state)
 static void widget_state_option_menu(uiWidgetType *wt, int state)
 {
 	bTheme *btheme = UI_GetTheme(); /* XXX */
-	
+
 	/* call this for option button */
 	widget_state(wt, state);
-	
+
 	/* if not selected we get theme from menu back */
 	if (state & UI_SELECT)
 		copy_v3_v3_char(wt->wcol.text, btheme->tui.wcol_menu_back.text_sel);
@@ -2621,13 +2621,13 @@ static void widget_state_option_menu(uiWidgetType *wt, int state)
 static void widget_state_nothing(uiWidgetType *wt, int UNUSED(state))
 {
 	wt->wcol = *(wt->wcol_theme);
-}	
+}
 
 /* special case, button that calls pulldown */
 static void widget_state_pulldown(uiWidgetType *wt, int state)
 {
 	wt->wcol = *(wt->wcol_theme);
-	
+
 	copy_v4_v4_char(wt->wcol.inner, wt->wcol.inner_sel);
 	copy_v3_v3_char(wt->wcol.outline, wt->wcol.inner);
 
@@ -2667,7 +2667,7 @@ static void widget_state_pie_menu_item(uiWidgetType *wt, int state)
 static void widget_state_menu_item(uiWidgetType *wt, int state)
 {
 	wt->wcol = *(wt->wcol_theme);
-	
+
 	/* active and disabled (not so common) */
 	if ((state & UI_BUT_DISABLED) && (state & UI_ACTIVE)) {
 		widget_state_blend(wt->wcol.text, wt->wcol.text_sel, 0.5f);
@@ -2700,17 +2700,17 @@ static void widget_softshadow(const rcti *rect, int roundboxalign, const float r
 	int step, totvert;
 	float triangle_strip[WIDGET_SIZE_MAX * 2 + 2][2];
 	const float radout = UI_ThemeMenuShadowWidth();
-	
+
 	/* disabled shadow */
 	if (radout == 0.0f)
 		return;
-	
+
 	/* prevent tooltips to not show round shadow */
 	if (radout > 0.2f * BLI_rcti_size_y(&rect1))
 		rect1.ymax -= 0.2f * BLI_rcti_size_y(&rect1);
 	else
 		rect1.ymax -= radout;
-	
+
 	/* inner part */
 	totvert = round_box_shadow_edges(wtb.inner_v, &rect1, radin, roundboxalign & (UI_CNR_BOTTOM_RIGHT | UI_CNR_BOTTOM_LEFT), 0.0f);
 
@@ -2723,9 +2723,9 @@ static void widget_softshadow(const rcti *rect, int roundboxalign, const float r
 
 	for (step = 1; step <= (int)radout; step++) {
 		float expfac = sqrtf(step / radout);
-		
+
 		round_box_shadow_edges(wtb.outer_v, &rect1, radin, UI_CNR_ALL, (float)step);
-		
+
 		immUniformColor4f(0.0f, 0.0f, 0.0f, alphastep * (1.0f - expfac));
 
 		widget_verts_to_triangle_strip(&wtb, totvert, triangle_strip);
@@ -2740,9 +2740,9 @@ static void widget_menu_back(uiWidgetColors *wcol, rcti *rect, int flag, int dir
 {
 	uiWidgetBase wtb;
 	int roundboxalign = UI_CNR_ALL;
-	
+
 	widget_init(&wtb);
-	
+
 	/* menu is 2nd level or deeper */
 	if (flag & UI_BLOCK_POPUP) {
 		//rect->ymin -= 4.0;
@@ -2756,14 +2756,14 @@ static void widget_menu_back(uiWidgetColors *wcol, rcti *rect, int flag, int dir
 		roundboxalign = UI_CNR_TOP_LEFT | UI_CNR_TOP_RIGHT;
 		rect->ymax += 0.1f * U.widget_unit;
 	}
-	
+
 	glEnable(GL_BLEND);
 	widget_softshadow(rect, roundboxalign, wcol->roundness * U.widget_unit);
-	
+
 	round_box_edges(&wtb, roundboxalign, rect, wcol->roundness * U.widget_unit);
 	wtb.draw_emboss = false;
 	widgetbase_draw(&wtb, wcol);
-	
+
 	glDisable(GL_BLEND);
 }
 
@@ -2775,7 +2775,7 @@ static void ui_hsv_cursor(float x, float y)
 
 	immUniformColor3f(1.0f, 1.0f, 1.0f);
 	imm_draw_circle_fill_2d(pos, x, y, 3.0f * U.pixelsize, 8);
-	
+
 	glEnable(GL_BLEND);
 	glEnable(GL_LINE_SMOOTH);
 	immUniformColor3f(0.0f, 0.0f, 0.0f);
@@ -2808,14 +2808,14 @@ void ui_hsvcircle_pos_from_vals(uiBut *but, const rcti *rect, float *hsv, float
 	const float centy = BLI_rcti_cent_y_fl(rect);
 	float radius = (float)min_ii(BLI_rcti_size_x(rect), BLI_rcti_size_y(rect)) / 2.0f;
 	float ang, radius_t;
-	
+
 	ang = 2.0f * (float)M_PI * hsv[0] + (float)M_PI_2;
-	
+
 	if ((but->flag & UI_BUT_COLOR_CUBIC) && (U.color_picker_type == USER_CP_CIRCLE_HSV))
 		radius_t = (1.0f - pow3f(1.0f - hsv[1]));
 	else
 		radius_t = hsv[1];
-	
+
 	radius = CLAMPIS(radius_t, 0.0f, 1.0f) * radius;
 	*xpos = centx + cosf(-ang) * radius;
 	*ypos = centy + sinf(-ang) * radius;
@@ -2835,7 +2835,7 @@ static void ui_draw_but_HSVCIRCLE(uiBut *but, uiWidgetColors *wcol, const rcti *
 	const float *hsv_ptr = cpicker->color_data;
 	float rgb[3], hsvo[3], hsv[3], col[3], colcent[3];
 	bool color_profile = ui_but_is_colorpicker_display_space(but);
-		
+
 	/* color */
 	ui_but_v3_get(but, rgb);
 
@@ -2861,7 +2861,7 @@ static void ui_draw_but_HSVCIRCLE(uiBut *but, uiWidgetColors *wcol, const rcti *
 		else
 			hsv[2] = 0.5f;
 	}
-	
+
 	ui_color_picker_to_rgb(0.0f, 0.0f, hsv[2], colcent, colcent + 1, colcent + 2);
 
 	Gwn_VertFormat *format = immVertexFormat();
@@ -2873,12 +2873,12 @@ static void ui_draw_but_HSVCIRCLE(uiBut *but, uiWidgetColors *wcol, const rcti *
 	immBegin(GWN_PRIM_TRI_FAN, tot + 2);
 	immAttrib3fv(color, colcent);
 	immVertex2f(pos, centx, centy);
-	
+
 	float ang = 0.0f;
 	for (int a = 0; a <= tot; a++, ang += radstep) {
 		float si = sinf(ang);
 		float co = cosf(ang);
-		
+
 		ui_hsvcircle_vals_from_pos(hsv, hsv + 1, rect, centx + co * radius, centy + si * radius);
 
 		ui_color_picker_to_rgb_v(hsv, col);
@@ -2927,7 +2927,7 @@ void ui_draw_gradient(const rcti *rect, const float hsv[3], const int type, cons
 	float col1[4][3];   /* right half, rect bottom to top */
 
 	/* draw series of gouraud rects */
-	
+
 	switch (type) {
 		case UI_GRAD_SV:
 			hsv_to_rgb(h, 0.0, 0.0,   &col1[0][0], &col1[0][1], &col1[0][2]);
@@ -2979,7 +2979,7 @@ void ui_draw_gradient(const rcti *rect, const float hsv[3], const int type, cons
 	unsigned int pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
 	unsigned int col = GWN_vertformat_attr_add(format, "color", GWN_COMP_F32, 4, GWN_FETCH_FLOAT);
 	immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
-	
+
 	immBegin(GWN_PRIM_TRIS, steps * 3 * 6);
 	for (dx = 0.0f; dx < 0.999f; dx += color_step) { /* 0.999 = prevent float inaccuracy for steps */
 		const float dx_next = dx + color_step;
@@ -2989,7 +2989,7 @@ void ui_draw_gradient(const rcti *rect, const float hsv[3], const int type, cons
 		copy_v3_v3(col0[1], col1[1]);
 		copy_v3_v3(col0[2], col1[2]);
 		copy_v3_v3(col0[3], col1[3]);
-		
+
 		/* new color */
 		switch (type) {
 			case UI_GRAD_SV:
@@ -3031,17 +3031,17 @@ void ui_draw_gradient(const rcti *rect, const float hsv[3], const int type, cons
 				copy_v3_v3(col1[3], col1[2]);
 				break;
 		}
-		
+
 		/* rect */
 		sx1 = rect->xmin + dx      * BLI_rcti_size_x(rect);
 		sx2 = rect->xmin + dx_next * BLI_rcti_size_x(rect);
 		sy = rect->ymin;
 		dy = (float)BLI_rcti_size_y(rect) / 3.0f;
-		
+
 		for (a = 0; a < 3; a++, sy += dy) {
 			immAttrib4f(col, col0[a][0], col0[a][1], col0[a][2], alpha);
 			immVertex2f(pos, sx1, sy);
-			
+
 			immAttrib4f(col, col1[a][0], col1[a][1], col1[a][2], alpha);
 			immVertex2f(pos, sx2, sy);
 
@@ -3053,7 +3053,7 @@ void ui_draw_gradient(const rcti *rect, const float hsv[3], const int type, cons
 
 			immAttrib4f(col, col1[a + 1][0], col1[a + 1][1], col1[a + 1][2], alpha);
 			immVertex2f(pos, sx2, sy + dy);
-			
+
 			immAttrib4f(col, col0[a + 1][0], col0[a + 1][1], col0[a + 1][2], alpha);
 			immVertex2f(pos, sx1, sy + dy);
 		}
@@ -3117,24 +3117,24 @@ static void ui_draw_but_HSVCUBE(uiBut *but, const rcti *rect)
 	float *hsv = cpicker->color_data;
 	float hsv_n[3];
 	bool use_display_colorspace = ui_but_is_colorpicker_display_space(but);
-	
+
 	copy_v3_v3(hsv_n, hsv);
-	
+
 	ui_but_v3_get(but, rgb);
-	
+
 	if (use_display_colorspace)
 		ui_block_cm_to_display_space_v3(but->block, rgb);
-	
+
 	rgb_to_hsv_compat_v(rgb, hsv_n);
-	
+
 	ui_draw_gradient(rect, hsv_n, but->a1, 1.0f);
 
 	ui_hsvcube_pos_from_vals(but, rect, hsv_n, &x, &y);
 	CLAMP(x, rect->xmin + 3.0f, rect->xmax - 3.0f);
 	CLAMP(y, rect->ymin + 3.0f, rect->ymax - 3.0f);
-	
+
 	ui_hsv_cursor(x, y);
-	
+
 	/* outline */
 	unsigned int pos = GWN_vertformat_attr_add(immVertexFormat(), "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
 	immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
@@ -3153,7 +3153,7 @@ static void ui_draw_but_HSV_v(uiBut *but, const rcti *rect)
 	float x, y;
 	float rgb[3], hsv[3], v;
 	bool color_profile = but->block->color_profile;
-	
+
 	if (but->rnaprop && RNA_property_subtype(but->rnaprop) == PROP_COLOR_GAMMA)
 		color_profile = false;
 
@@ -3167,7 +3167,7 @@ static void ui_draw_but_HSV_v(uiBut *but, const rcti *rect)
 	else
 		rgb_to_hsv_v(rgb, hsv);
 	v = hsv[2];
-	
+
 	/* map v from property range to [0,1] */
 	if (but->a1 == UI_GRAD_V_ALT) {
 		float min = but->softmin, max = but->softmax;
@@ -3178,17 +3178,17 @@ static void ui_draw_but_HSV_v(uiBut *but, const rcti *rect)
 	}
 
 	widget_init(&wtb);
-	
+
 	/* fully rounded */
 	round_box_edges(&wtb, UI_CNR_ALL, rect, rad);
-	
+
 	/* setup temp colors */
 	wcol_tmp.outline[0] = wcol_tmp.outline[1] = wcol_tmp.outline[2] = 0;
 	wcol_tmp.inner[0] = wcol_tmp.inner[1] = wcol_tmp.inner[2] = 128;
 	wcol_tmp.shadetop = 127;
 	wcol_tmp.shadedown = -128;
 	wcol_tmp.shaded = 1;
-	
+
 	widgetbase_draw(&wtb, &wcol_tmp);
 
 	/* We are drawing on top of widget bases. Flush cache. */
@@ -3256,9 +3256,9 @@ static void widget_numbut_draw(uiWidgetColors *wcol, rcti *rect, int state, int
 
 	if (state & UI_SELECT)
 		SWAP(short, wcol->shadetop, wcol->shadedown);
-	
+
 	widget_init(&wtb);
-	
+
 	if (!emboss) {
 		round_box_edges(&wtb, roundboxalign, rect, rad);
 	}
@@ -3338,7 +3338,7 @@ static void widget_numbut_draw(uiWidgetColors *wcol, rcti *rect, int state, int
 		/* inner and outline */
 		widgetbase_draw(&wtb, wcol);
 	}
-	
+
 	if (!(state & UI_STATE_TEXT_INPUT)) {
 		const float textofs = 0.425f * BLI_rcti_size_y(rect);
 
@@ -3378,29 +3378,29 @@ void UI_draw_widget_scroll(uiWidgetColors *wcol, const rcti *rect, const rcti *s
 		rad = wcol->roundness * BLI_rcti_size_y(rect);
 	else
 		rad = wcol->roundness * BLI_rcti_size_x(rect);
-	
+
 	wtb.uniform_params.shade_dir = (horizontal) ? 1.0f : 0.0;
-	
+
 	/* draw back part, colors swapped and shading inverted */
 	if (horizontal)
 		SWAP(short, wcol->shadetop, wcol->shadedown);
-	
+
 	round_box_edges(&wtb, UI_CNR_ALL, rect, rad);
 	widgetbase_draw(&wtb, wcol);
-	
+
 	/* slider */
 	if ((BLI_rcti_size_x(slider) < 2) || (BLI_rcti_size_y(slider) < 2)) {
 		/* pass */
 	}
 	else {
 		SWAP(short, wcol->shadetop, wcol->shadedown);
-		
+
 		copy_v4_v4_char(wcol->inner, wcol->item);
-		
+
 		if (wcol->shadetop > wcol->shadedown)
 			wcol->shadetop += 20;   /* XXX violates themes... */
 		else wcol->shadedown += 20;
-		
+
 		if (state & UI_SCROLL_PRESSED) {
 			wcol->inner[0] = wcol->inner[0] >= 250 ? 255 : wcol->inner[0] + 5;
 			wcol->inner[1] = wcol->inner[1] >= 250 ? 255 : wcol->inner[1] + 5;
@@ -3409,20 +3409,20 @@ void UI_draw_widget_scroll(uiWidgetColors *wcol, const rcti *rect, const rcti *s
 
 		/* draw */
 		wtb.draw_emboss = false; /* only emboss once */
-		
+
 		/* exception for progress bar */
 		if (state & UI_SCROLL_NO_OUTLINE) {
 			SWAP(bool, outline, wtb.draw_outline);
 		}
-		
+
 		round_box_edges(&wtb, UI_CNR_ALL, slider, rad);
-		
+
 		if (state & UI_SCROLL_ARROWS) {
 			if (wcol->item[0] > 48) wcol->item[0] -= 48;
 			if (wcol->item[1] > 48) wcol->item[1] -= 48;
 			if (wcol->item[2] > 48) wcol->item[2] -= 48;
 			wcol->item[3] = 255;
-			
+
 			if (horizontal) {
 				shape_preset_init_scroll_circle(&wtb.tria1, slider, 0.6f, 'l');
 				shape_preset_init_scroll_circle(&wtb.tria2, slider, 0.6f, 'r');
@@ -3433,7 +3433,7 @@ void UI_draw_widget_scroll(uiWidgetColors *wcol, const rcti *rect, const rcti *s
 			}
 		}
 		widgetbase_draw(&wtb, wcol);
-		
+
 		if (state & UI_SCROLL_NO_OUTLINE) {
 			SWAP(bool, outline, wtb.draw_outline);
 		}
@@ -3452,13 +3452,13 @@ static void widget_scroll(uiBut *but, uiWidgetColors *wcol, rcti *rect, int stat
 
 	size = (but->softmax + but->a1 - but->softmin);
 	size = max_ff(size, 2.0f);
-	
+
 	/* position */
 	rect1 = *rect;
 
 	/* determine horizontal/vertical */
 	horizontal = (BLI_rcti_size_x(rect) > BLI_rcti_size_y(rect));
-	
+
 	if (horizontal) {
 		fac = BLI_rcti_size_x(rect) / size;
 		rect1.xmin = rect1.xmin + ceilf(fac * ((float)value - but->softmin));
@@ -3627,7 +3627,7 @@ static void widget_swatch(uiBut *but, uiWidgetColors *wcol, rcti *rect, int stat
 	uiWidgetBase wtb;
 	float rad, col[4];
 	bool color_profile = but->block->color_profile;
-	
+
 	col[3] = 1.0f;
 
 	if (but->rnaprop) {
@@ -3640,12 +3640,12 @@ static void widget_swatch(uiBut *but, uiWidgetColors *wcol, rcti *rect, int stat
 			col[3] = RNA_property_float_get_index(&but->rnapoin, but->rnaprop, 3);
 		}
 	}
-	
+
 	widget_init(&wtb);
-	
+
 	rad = wcol->roundness * U.widget_unit;
 	round_box_edges(&wtb, roundboxalign, rect, rad);
-		
+
 	ui_but_v3_get(but, col);
 
 	if (state & (UI_BUT_ANIMATED | UI_BUT_ANIMATED_KEY | UI_BUT_DRIVEN | UI_BUT_OVERRIDEN | UI_BUT_REDALERT)) {
@@ -3657,18 +3657,18 @@ static void widget_swatch(uiBut *but, uiWidgetColors *wcol, rcti *rect, int stat
 		rect->xmax -= SWATCH_KEYED_BORDER;
 		rect->ymin += SWATCH_KEYED_BORDER;
 		rect->ymax -= SWATCH_KEYED_BORDER;
-		
+
 		round_box_edges(&wtb, roundboxalign, rect, rad);
 	}
-	
+
 	if (color_profile)
 		ui_block_cm_to_display_space_v3(but->block, col);
-	
+
 	rgba_float_to_uchar((unsigned char *)wcol->inner, col);
 
 	wcol->shaded = 0;
 	wcol->alpha_check = (wcol->inner[3] < 255);
-	
+
 	if (state & (UI_BUT_DISABLED | UI_BUT_INACTIVE)) {
 		/* Now we reduce alpha of the inner color (i.e. the color shown)
 		 * so that this setting can look grayed out, while retaining
@@ -3716,16 +3716,16 @@ static void widget_icon_has_anim(uiBut *but, uiWidgetColors *wcol, rcti *rect, i
 	if (state & (UI_BUT_ANIMATED | UI_BUT_ANIMATED_KEY | UI_BUT_DRIVEN | UI_BUT_REDALERT)) {
 		uiWidgetBase wtb;
 		float rad;
-		
+
 		widget_init(&wtb);
 		wtb.draw_outline = false;
-		
+
 		rad = wcol->roundness * BLI_rcti_size_y(rect);
 		round_box_edges(&wtb, UI_CNR_ALL, rect, rad);
 		widgetbase_draw(&wtb, wcol);
 	}
 	else if (but->type == UI_BTYPE_NUM) {
-		/* Draw number buttons still with left/right 
+		/* Draw number buttons still with left/right
 		 * triangles when field is not embossed */
 		widget_numbut_embossn(but, wcol, rect, state, roundboxalign);
 	}
@@ -3736,15 +3736,15 @@ static void widget_textbut(uiWidgetColors *wcol, rcti *rect, int state, int roun
 {
 	uiWidgetBase wtb;
 	float rad;
-	
+
 	if (state & UI_SELECT)
 		SWAP(short, wcol->shadetop, wcol->shadedown);
-	
+
 	widget_init(&wtb);
-	
+
 	rad = wcol->roundness * U.widget_unit;
 	round_box_edges(&wtb, roundboxalign, rect, rad);
-	
+
 	widgetbase_draw(&wtb, wcol);
 }
 
@@ -3753,19 +3753,19 @@ static void widget_menubut(uiWidgetColors *wcol, rcti *rect, int UNUSED(state),
 {
 	uiWidgetBase wtb;
 	float rad;
-	
+
 	widget_init(&wtb);
-	
+
 	rad = wcol->roundness * U.widget_unit;
 	round_box_edges(&wtb, roundboxalign, rect, rad);
-	
+
 	/* decoration */
 	shape_preset_trias_from_rect_menu(&wtb.tria1, rect);
 	/* copy size and center to 2nd tria */
 	wtb.tria2 = wtb.tria1;
-	
+
 	widgetbase_draw(&wtb, wcol);
-	
+
 	/* text space, arrows are about 0.6 height of button */
 	rect->xmax -= (6 * BLI_rcti_size_y(rect)) / 10;
 }
@@ -3774,12 +3774,12 @@ static void widget_menuiconbut(uiWidgetColors *wcol, rcti *rect, int UNUSED(stat
 {
 	uiWidgetBase wtb;
 	float rad;
-	
+
 	widget_init(&wtb);
-	
+
 	rad = wcol->roundness * U.widget_unit;
 	round_box_edges(&wtb, roundboxalign, rect, rad);
-	
+
 	/* decoration */
 	widgetbase_draw(&wtb, wcol);
 }
@@ -3790,9 +3790,9 @@ static void widget_menunodebut(uiWidgetColors *wcol, rcti *rect, int UNUSED(stat
 	uiWidgetBase wtb;
 	uiWidgetColors wcol_backup = *wcol;
 	float rad;
-	
+
 	widget_init(&wtb);
-	
+
 	rad = wcol->roundness * U.widget_unit;
 	round_box_edges(&wtb, roundboxalign, rect, rad);
 
@@ -3802,7 +3802,7 @@ static void widget_menunodebut(uiWidgetColors *wcol, rcti *rect, int UNUSED(stat
 	wcol->outline[0] = min_ii(wcol->outline[0] + 15, 255);
 	wcol->outline[1] = min_ii(wcol->outline[1] + 15, 255);
 	wcol->outline[2] = min_ii(wcol->outline[2] + 15, 255);
-	
+
 	/* decoration */
 	widgetbase_draw(&wtb, wcol);
 	*wcol = wcol_backup;
@@ -3818,7 +3818,7 @@ static void widget_pulldownbut(uiWidgetColors *wcol, rcti *rect, int state, int
 
 		/* half rounded */
 		round_box_edges(&wtb, roundboxalign, rect, rad);
-		
+
 		widgetbase_draw(&wtb, wcol);
 	}
 }
@@ -3826,13 +3826,13 @@ static void widget_pulldownbut(uiWidgetColors *wcol, rcti *rect, int state, int
 static void widget_menu_itembut(uiWidgetColors *wcol, rcti *rect, int UNUSED(state), int UNUSED(roundboxalign))
 {
 	uiWidgetBase wtb;
-	
+
 	widget_init(&wtb);
-	
+
 	/* not rounded, no outline */
 	wtb.draw_outline = false;
 	round_box_edges(&wtb, 0, rect, 0.0f);
-	
+
 	widgetbase_draw(&wtb, wcol);
 }
 
@@ -3863,14 +3863,14 @@ static void widget_list_itembut(uiWidgetColors *wcol, rcti *rect, int UNUSED(sta
 {
 	uiWidgetBase wtb;
 	float rad;
-	
+
 	widget_init(&wtb);
-	
+
 	/* no outline */
 	wtb.draw_outline = false;
 	rad = wcol->roundness * U.widget_unit;
 	round_box_edges(&wtb, UI_CNR_ALL, rect, rad);
-	
+
 	widgetbase_draw(&wtb, wcol);
 }
 
@@ -3880,29 +3880,29 @@ static void widget_optionbut(uiWidgetColors *wcol, rcti *rect, int state, int UN
 	rcti recttemp = *rect;
 	float rad;
 	int delta;
-	
+
 	widget_init(&wtb);
-	
+
 	/* square */
 	recttemp.xmax = recttemp.xmin + BLI_rcti_size_y(&recttemp);
-	
+
 	/* smaller */
 	delta = 1 + BLI_rcti_size_y(&recttemp) / 8;
 	recttemp.xmin += delta;
 	recttemp.ymin += delta;
 	recttemp.xmax -= delta;
 	recttemp.ymax -= delta;
-	
+
 	rad = wcol->roundness * BLI_rcti_size_y(&recttemp);
 	round_box_edges(&wtb, UI_CNR_ALL, &recttemp, rad);
-	
+
 	/* decoration */
 	if (state & UI_SELECT) {
 		shape_preset_trias_from_rect_checkmark(&wtb.tria1, &recttemp);
 	}
-	
+
 	widgetbase_draw(&wtb, wcol);
-	
+
 	/* text space */
 	rect->xmin += BLI_rcti_size_y(rect) * 0.7 + delta;
 }
@@ -3931,12 +3931,12 @@ static void widget_radiobut(uiWidgetColors *wcol, rcti *rect, int UNUSED(state),
 {
 	uiWidgetBase wtb;
 	float rad;
-	
+
 	widget_init(&wtb);
-	
+
 	rad = wcol->roundness * U.widget_unit;
 	round_box_edges(&wtb, roundboxalign, rect, rad);
-	
+
 	widgetbase_draw(&wtb, wcol);
 }
 
@@ -3945,23 +3945,23 @@ static void widget_box(uiBut *but, uiWidgetColors *wcol, rcti *rect, int UNUSED(
 	uiWidgetBase wtb;
 	float rad;
 	char old_col[3];
-	
+
 	widget_init(&wtb);
-	
+
 	copy_v3_v3_char(old_col, wcol->inner);
-	
+
 	/* abuse but->hsv - if it's non-zero, use this color as the box's background */
 	if (but->col[3]) {
 		wcol->inner[0] = but->col[0];
 		wcol->inner[1] = but->col[1];
 		wcol->inner[2] = but->col[2];
 	}
-	
+
 	rad = wcol->roundness * U.widget_unit;
 	round_box_edges(&wtb, roundboxalign, rect, rad);
-	
+
 	widgetbase_draw(&wtb, wcol);
-		
+
 	copy_v3_v3_char(wcol->inner, old_col);
 }
 
@@ -3969,12 +3969,12 @@ static void widget_but(uiWidgetColors *wcol, rcti *rect, int UNUSED(state), int
 {
 	uiWidgetBase wtb;
 	float rad;
-	
+
 	widget_init(&wtb);
-	
+
 	rad = wcol->roundness * U.widget_unit;
 	round_box_edges(&wtb, roundboxalign, rect, rad);
-	
+
 	widgetbase_draw(&wtb, wcol);
 }
 
@@ -3983,9 +3983,9 @@ static void widget_roundbut(uiWidgetColors *wcol, rcti *rect, int UNUSED(state),
 {
 	uiWidgetBase wtb;
 	const float rad = wcol->roundness * U.widget_unit;
-	
+
 	widget_init(&wtb);
-	
+
 	/* half rounded */
 	round_box_edges(&wtb, roundboxalign, rect, rad);
 
@@ -4077,13 +4077,13 @@ static void widget_draw_extra_mask(const bContext *C, uiBut *but, uiWidgetType *
 
 	/* state copy! */
 	wt->wcol = *(wt->wcol_theme);
-	
+
 	widget_init(&wtb);
-	
+
 	if (but->block->drawextra) {
 		/* note: drawextra can change rect +1 or -1, to match round errors of existing previews */
 		but->block->drawextra(C, but->poin, but->block->drawextra_arg1, but->block->drawextra_arg2, rect);
-		
+
 		unsigned int pos = GWN_vertformat_attr_add(immVertexFormat(), "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
 		immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
 
@@ -4096,7 +4096,7 @@ static void widget_draw_extra_mask(const bContext *C, uiBut *but, uiWidgetType *
 
 		immUnbindProgram();
 	}
-	
+
 	/* outline */
 	round_box_edges(&wtb, UI_CNR_ALL, rect, rad);
 	wtb.draw_outline = true;
@@ -4108,7 +4108,7 @@ static uiWidgetType *widget_type(uiWidgetTypeEnum type)
 {
 	bTheme *btheme = UI_GetTheme();
 	static uiWidgetType wt;
-	
+
 	/* defaults */
 	wt.wcol_theme = &btheme->tui.wcol_regular;
 	wt.wcol_state = &btheme->tui.wcol_state;
@@ -4116,7 +4116,7 @@ static uiWidgetType *widget_type(uiWidgetTypeEnum type)
 	wt.draw = widget_but;
 	wt.custom = NULL;
 	wt.text = widget_draw_text_icon;
-	
+
 	switch (type) {
 		case UI_WTYPE_REGULAR:
 			break;
@@ -4125,16 +4125,16 @@ static uiWidgetType *widget_type(uiWidgetTypeEnum type)
 			wt.draw = NULL;
 			wt.state = widget_state_label;
 			break;
-			
+
 		case UI_WTYPE_TOGGLE:
 			wt.wcol_theme = &btheme->tui.wcol_toggle;
 			break;
-			
+
 		case UI_WTYPE_CHECKBOX:
 			wt.wcol_theme = &btheme->tui.wcol_option;
 			wt.draw = widget_optionbut;
 			break;
-			
+
 		case UI_WTYPE_RADIO:
 			wt.wcol_theme = &btheme->tui.wcol_radio;
 			wt.draw = widget_radiobut;
@@ -4144,13 +4144,13 @@ static uiWidgetType *widget_type(uiWidgetTypeEnum type)
 			wt.wcol_theme = &btheme->tui.wcol_num;
 			wt.draw = widget_numbut;
 			break;
-			
+
 		case UI_WTYPE_SLIDER:
 			wt.wcol_theme = &btheme->tui.wcol_numslider;
 			wt.custom = widget_numslider;
 			wt.state = widget_state_numslider;
 			break;
-			
+
 		case UI_WTYPE_EXEC:
 			wt.wcol_theme = &btheme->tui.wcol_tool;
 			wt.draw = widget_roundbut_exec;
@@ -4160,7 +4160,7 @@ static uiWidgetType *widget_type(uiWidgetTypeEnum type)
 			wt.wcol_theme = &btheme->tui.wcol_toolbar_item;
 			wt.draw = widget_roundbut_exec;
 			break;
-			
+
 		case UI_WTYPE_TAB:
 			wt.wcol_theme = &btheme->tui.wcol_tab;
 			wt.draw = widget_tab;
@@ -4170,24 +4170,24 @@ static uiWidgetType *widget_type(uiWidgetTypeEnum type)
 			wt.wcol_theme = &btheme->tui.wcol_tooltip;
 			wt.draw = widget_menu_back;
 			break;
-			
-			
+
+
 		/* strings */
 		case UI_WTYPE_NAME:
 			wt.wcol_theme = &btheme->tui.wcol_text;
 			wt.draw = widget_textbut;
 			break;
-			
+
 		case UI_WTYPE_NAME_LINK:
 			break;
-			
+
 		case UI_WTYPE_POINTER_LINK:
 			break;
-			
+
 		case UI_WTYPE_FILENAME:
 			break;
-			
-			
+
+
 		/* start menus */
 		case UI_WTYPE_MENU_RADIO:
 			wt.wcol_theme = &btheme->tui.wcol_menu;
@@ -4198,7 +4198,7 @@ static uiWidgetType *widget_type(uiWidgetTypeEnum type)
 			wt.wcol_theme = &btheme->tui.wcol_menu;
 			wt.draw = widget_menuiconbut;
 			break;
-			
+
 		case UI_WTYPE_MENU_POINTER_LINK:
 			wt.wcol_theme = &btheme->tui.wcol_menu;
 			wt.draw = widget_menubut;
@@ -4208,20 +4208,20 @@ static uiWidgetType *widget_type(uiWidgetTypeEnum type)
 			wt.wcol_theme = &btheme->tui.wcol_menu;
 			wt.draw = widget_menunodebut;
 			break;
-			
+
 		case UI_WTYPE_PULLDOWN:
 			wt.wcol_theme = &btheme->tui.wcol_pulldown;
 			wt.draw = widget_pulldownbut;
 			wt.state = widget_state_pulldown;
 			break;
-			
+
 		/* in menus */
 		case UI_WTYPE_MENU_ITEM:
 			wt.wcol_theme = &btheme->tui.wcol_menu_item;
 			wt.draw = widget_menu_itembut;
 			wt.state = widget_state_menu_item;
 			break;
-			
+
 		case UI_WTYPE_MENU_BACK:
 			wt.wcol_theme = &btheme->tui.wcol_menu_back;
 			wt.draw = widget_menu_back;
@@ -4237,19 +4237,19 @@ static uiWidgetType *widget_type(uiWidgetTypeEnum type)
 			wt.state = widget_state_label;
 			wt.custom = widget_icon_has_anim;
 			break;
-			
+
 		case UI_WTYPE_SWATCH:
 			wt.custom = widget_swatch;
 			break;
-			
+
 		case UI_WTYPE_BOX:
 			wt.custom = widget_box;
 			wt.wcol_theme = &btheme->tui.wcol_box;
 			break;
-			
+
 		case UI_WTYPE_RGB_PICKER:
 			break;
-			
+
 		case UI_WTYPE_UNITVEC:
 			wt.custom = widget_unitvec;
 			break;
@@ -4264,7 +4264,7 @@ static uiWidgetType *widget_type(uiWidgetTypeEnum type)
 			wt.wcol_theme = &btheme->tui.wcol_list_item;
 			wt.draw = widget_list_itembut;
 			break;
-			
+
 		case UI_WTYPE_PROGRESSBAR:
 			wt.wcol_theme = &btheme->tui.wcol_progress;
 			wt.custom = widget_progressbar;
@@ -4276,7 +4276,7 @@ static uiWidgetType *widget_type(uiWidgetTypeEnum type)
 			wt.state = widget_state_pie_menu_item;
 			break;
 	}
-	
+
 	return &wt;
 }
 
@@ -4287,13 +4287,13 @@ static int widget_roundbox_set(uiBut *but, rcti *rect)
 
 	/* alignment */
 	if ((but->drawflag & UI_BUT_ALIGN) && but->type != UI_BTYPE_PULLDOWN) {
-		
+
 		/* ui_popup_block_position has this correction too, keep in sync */
 		if (but->drawflag & (UI_BUT_ALIGN_TOP | UI_BUT_ALIGN_STITCH_TOP))
 			rect->ymax += U.pixelsize;
 		if (but->drawflag & (UI_BUT_ALIGN_LEFT | UI_BUT_ALIGN_STITCH_LEFT))
 			rect->xmin -= U.pixelsize;
-		
+
 		switch (but->drawflag & UI_BUT_ALIGN) {
 			case UI_BUT_ALIGN_TOP:
 				roundbox = UI_CNR_BOTTOM_LEFT | UI_CNR_BOTTOM_RIGHT;
@@ -4402,7 +4402,7 @@ void ui_draw_but(const bContext *C, ARegion *ar, uiStyle *style, uiBut *but, rct
 			case UI_BTYPE_SEPR:
 			case UI_BTYPE_SEPR_LINE:
 				break;
-				
+
 			case UI_BTYPE_BUT:
 #ifdef USE_TOOLBAR_HACK
 				if (UI_but_is_tool(but)) {
@@ -4419,11 +4419,11 @@ void ui_draw_but(const bContext *C, ARegion *ar, uiStyle *style, uiBut *but, rct
 			case UI_BTYPE_NUM:
 				wt = widget_type(UI_WTYPE_NUMBER);
 				break;
-				
+
 			case UI_BTYPE_NUM_SLIDER:
 				wt = widget_type(UI_WTYPE_SLIDER);
 				break;
-				
+
 			case UI_BTYPE_ROW:
 				wt = widget_type(UI_WTYPE_RADIO);
 				break;
@@ -4431,7 +4431,7 @@ void ui_draw_but(const bContext *C, ARegion *ar, uiStyle *style, uiBut *but, rct
 			case UI_BTYPE_LISTROW:
 				wt = widget_type(UI_WTYPE_LISTITEM);
 				break;
-				
+
 			case UI_BTYPE_TEXT:
 				wt = widget_type(UI_WTYPE_NAME);
 				break;
@@ -4451,7 +4451,7 @@ void ui_draw_but(const bContext *C, ARegion *ar, uiStyle *style, uiBut *but, rct
 			case UI_BTYPE_TOGGLE_N:
 				wt = widget_type(UI_WTYPE_TOGGLE);
 				break;
-				
+
 			case UI_BTYPE_CHECKBOX:
 			case UI_BTYPE_CHECKBOX_N:
 				if (!(but->flag & UI_HAS_ICON)) {
@@ -4460,13 +4460,13 @@ void ui_draw_but(const bContext *C, ARegion *ar, uiStyle *style, uiBut *but, rct
 				}
 				else
 					wt = widget_type(UI_WTYPE_TOGGLE);
-				
+
 				/* option buttons have strings outside, on menus use different colors */
 				if (but->block->flag & UI_BLOCK_LOOP)
 					wt->state = widget_state_option_menu;
-				
+
 				break;
-				
+
 			case UI_BTYPE_MENU:
 			case UI_BTYPE_BLOCK:
 			case UI_BTYPE_POPOVER:
@@ -4495,15 +4495,15 @@ void ui_draw_but(const bContext *C, ARegion *ar, uiStyle *style, uiBut *but, rct
 			case UI_BTYPE_PULLDOWN:
 				wt = widget_type(UI_WTYPE_PULLDOWN);
 				break;
-			
+
 			case UI_BTYPE_BUT_MENU:
 				wt = widget_type(UI_WTYPE_MENU_ITEM);
 				break;
-				
+
 			case UI_BTYPE_COLOR:
 				wt = widget_type(UI_WTYPE_SWATCH);
 				break;
-				
+
 			case UI_BTYPE_ROUNDBOX:
 			case UI_BTYPE_LISTBOX:
 				wt = widget_type(UI_WTYPE_BOX);
@@ -4512,7 +4512,7 @@ void ui_draw_but(const bContext *C, ARegion *ar, uiStyle *style, uiBut *but, rct
 			case UI_BTYPE_EXTRA:
 				widget_draw_extra_mask(C, but, widget_type(UI_WTYPE_BOX), rect);
 				break;
-				
+
 			case UI_BTYPE_HSVCUBE:
 				if (ELEM(but->a1, UI_GRAD_V_ALT, UI_GRAD_L_ALT)) {  /* vertical V slider, uses new widget draw now */
 					ui_draw_but_HSV_v(but, rect);
@@ -4521,39 +4521,39 @@ void ui_draw_but(const bContext *C, ARegion *ar, uiStyle *style, uiBut *but, rct
 					ui_draw_but_HSVCUBE(but, rect);
 				}
 				break;
-				
+
 			case UI_BTYPE_HSVCIRCLE:
 				ui_draw_but_HSVCIRCLE(but, &tui->wcol_regular, rect);
 				break;
-				
+
 			case UI_BTYPE_COLORBAND:
 				ui_draw_but_COLORBAND(but, &tui->wcol_regular, rect);
 				break;
-				
+
 			case UI_BTYPE_UNITVEC:
 				wt = widget_type(UI_WTYPE_UNITVEC);
 				break;
-				
+
 			case UI_BTYPE_IMAGE:
 				ui_draw_but_IMAGE(ar, but, &tui->wcol_regular, rect);
 				break;
-			
+
 			case UI_BTYPE_HISTOGRAM:
 				ui_draw_but_HISTOGRAM(ar, but, &tui->wcol_regular, rect);
 				break;
-				
+
 			case UI_BTYPE_WAVEFORM:
 				ui_draw_but_WAVEFORM(ar, but, &tui->wcol_regular, rect);
 				break;
-				
+
 			case UI_BTYPE_VECTORSCOPE:
 				ui_draw_but_VECTORSCOPE(ar, but, &tui->wcol_regular, rect);
 				break;
-					
+
 			case UI_BTYPE_CURVE:
 				ui_draw_but_CURVE(ar, but, &tui->wcol_regular, rect);
 				break;
-				
+
 			case UI_BTYPE_PROGRESS_BAR:
 				wt = widget_type(UI_WTYPE_PROGRESSBAR);
 				fstyle = &style->widgetlabel;
@@ -4580,12 +4580,12 @@ void ui_draw_but(const bContext *C, ARegion *ar, uiStyle *style, uiBut *but, rct
 				break;
 		}
 	}
-	
+
 	if (wt) {
 		//rcti disablerect = *rect; /* rect gets clipped smaller for text */
 		int roundboxalign, state;
 		bool disabled = false;
-		
+
 		roundboxalign = widget_roundbox_set(but, rect);
 
 		/* Mask out flags re-used for local state. */
@@ -4617,7 +4617,7 @@ void ui_draw_but(const bContext *C, ARegion *ar, uiStyle *style, uiBut *but, rct
 		if (state & (UI_BUT_DISABLED | UI_BUT_INACTIVE))
 			if (but->dt != UI_EMBOSS_PULLDOWN)
 				disabled = true;
-		
+
 		if (disabled)
 			ui_widget_color_disabled(wt);
 
@@ -4651,7 +4651,7 @@ void ui_draw_but(const bContext *C, ARegion *ar, uiStyle *style, uiBut *but, rct
 		wt->text(fstyle, &wt->wcol, but, rect);
 		if (disabled)
 			glDisable(GL_BLEND);
-		
+
 //		if (state & (UI_BUT_DISABLED | UI_BUT_INACTIVE))
 //			if (but->dt != UI_EMBOSS_PULLDOWN)
 //				widget_disabled(&disablerect);
@@ -4904,7 +4904,7 @@ void ui_draw_tooltip_background(uiStyle *UNUSED(style), uiBlock *UNUSED(block),
 void ui_draw_search_back(uiStyle *UNUSED(style), uiBlock *block, rcti *rect)
 {
 	uiWidgetType *wt = widget_type(UI_WTYPE_BOX);
-	
+
 	glEnable(GL_BLEND);
 	widget_softshadow(rect, UI_CNR_ALL, 0.25f * U.widget_unit);
 	glDisable(GL_BLEND);
@@ -4927,10 +4927,10 @@ void ui_draw_menu_item(uiFontStyle *fstyle, rcti *rect, const char *name, int ic
 
 	wt->state(wt, state);
 	wt->draw(&wt->wcol, rect, 0, 0);
-	
+
 	UI_fontstyle_set(fstyle);
 	fstyle->align = UI_STYLE_TEXT_LEFT;
-	
+
 	/* text location offset */
 	rect->xmin += 0.25f * UI_UNIT_X;
 	if (iconid) rect->xmin += UI_DPI_ICON_SIZE;
@@ -4979,7 +4979,7 @@ void ui_draw_menu_item(uiFontStyle *fstyle, rcti *rect, const char *name, int ic
 			*cpoin = UI_SEP_CHAR;
 		}
 	}
-	
+
 	/* restore rect, was messed with */
 	*rect = _rect;
 
@@ -4990,7 +4990,7 @@ void ui_draw_menu_item(uiFontStyle *fstyle, rcti *rect, const char *name, int ic
 
 		height = ICON_SIZE_FROM_BUTRECT(rect);
 		aspect = ICON_DEFAULT_HEIGHT / height;
-		
+
 		glEnable(GL_BLEND);
 		UI_icon_draw_aspect(xs, ys, iconid, aspect, 1.0f); /* XXX scale weak get from fstyle? */
 		glDisable(GL_BLEND);
@@ -5003,17 +5003,17 @@ void ui_draw_preview_item(uiFontStyle *fstyle, rcti *rect, const char *name, int
 	const float text_size = UI_UNIT_Y;
 	float font_dims[2] = {0.0f, 0.0f};
 	uiWidgetType *wt = widget_type(UI_WTYPE_MENU_ITEM);
-	
+
 	/* drawing button background */
 	wt->state(wt, state);
 	wt->draw(&wt->wcol, rect, 0, 0);
-	
+
 	/* draw icon in rect above the space reserved for the label */
 	rect->ymin += text_size;
 	glEnable(GL_BLEND);
 	widget_draw_preview(iconid, 1.0f, rect);
 	glDisable(GL_BLEND);
-	
+
 	BLF_width_and_height(fstyle->uifont_id, name, BLF_DRAW_STR_DUMMY_MAX, &font_dims[0], &font_dims[1]);
 
 	/* text rect */
diff --git a/source/blender/editors/interface/resources.c b/source/blender/editors/interface/resources.c
index 95a7d0a0d06..acfae0a6f0a 100644
--- a/source/blender/editors/interface/resources.c
+++ b/source/blender/editors/interface/resources.c
@@ -98,16 +98,16 @@ const unsigned char *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colo
 	static char headerdesel[4] = {0, 0, 0, 255};
 	static char setting = 0;
 	const char *cp = error;
-	
+
 	/* ensure we're not getting a color after running BKE_blender_userdef_free */
 	BLI_assert(BLI_findindex(&U.themes, theme_active) != -1);
 	BLI_assert(colorid != TH_UNDEFINED);
 
 	if (btheme) {
-	
+
 		/* first check for ui buttons theme */
 		if (colorid < TH_THEMEUI) {
-		
+
 			switch (colorid) {
 
 				case TH_REDALERT:
@@ -115,7 +115,7 @@ const unsigned char *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colo
 			}
 		}
 		else {
-		
+
 			switch (spacetype) {
 				case SPACE_BUTS:
 					ts = &btheme->tbuts;
@@ -250,7 +250,7 @@ const unsigned char *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colo
 					cp = &setting;
 					setting = ts->panelcolors.show_back;
 					break;
-					
+
 				case TH_BUTBACK:
 					cp = ts->button; break;
 				case TH_BUTBACK_TEXT:
@@ -273,7 +273,7 @@ const unsigned char *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colo
 					cp = ts->shade2; break;
 				case TH_HILITE:
 					cp = ts->hilite; break;
-				
+
 				case TH_GRID:
 					cp = ts->grid; break;
 				case TH_VIEW_OVERLAY:
@@ -524,7 +524,7 @@ const unsigned char *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colo
 				case TH_HANDLE_VERTEX_SIZE:
 					cp = &ts->handle_vertex_size;
 					break;
-					
+
 				case TH_GP_VERTEX:
 					cp = ts->gp_vertex;
 					break;
@@ -534,7 +534,7 @@ const unsigned char *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colo
 				case TH_GP_VERTEX_SIZE:
 					cp = &ts->gp_vertex_size;
 					break;
-					
+
 				case TH_DOPESHEET_CHANNELOB:
 					cp = ts->ds_channel;
 					break;
@@ -622,21 +622,21 @@ const unsigned char *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colo
 				case TH_SKIN_ROOT:
 					cp = ts->skin_root;
 					break;
-					
+
 				case TH_ANIM_ACTIVE:
 					cp = ts->anim_active;
 					break;
 				case TH_ANIM_INACTIVE:
 					cp = ts->anim_non_active;
 					break;
-				
+
 				case TH_NLA_TWEAK:
 					cp = ts->nla_tweaking;
 					break;
 				case TH_NLA_TWEAK_DUPLI:
 					cp = ts->nla_tweakdupli;
 					break;
-				
+
 				case TH_NLA_TRANSITION:
 					cp = ts->nla_transition;
 					break;
@@ -655,7 +655,7 @@ const unsigned char *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colo
 				case TH_NLA_SOUND_SEL:
 					cp = ts->nla_sound_sel;
 					break;
-					
+
 				case TH_WIDGET_EMBOSS:
 					cp = btheme->tui.widget_emboss; break;
 
@@ -716,7 +716,7 @@ const unsigned char *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colo
 			}
 		}
 	}
-	
+
 	return (const unsigned char *)cp;
 }
 
@@ -724,7 +724,7 @@ const unsigned char *UI_ThemeGetColorPtr(bTheme *btheme, int spacetype, int colo
 static void ui_theme_init_boneColorSets(bTheme *btheme)
 {
 	int i;
-	
+
 	/* define default color sets - currently we only define 15 of these, though that should be ample */
 	/* set 1 */
 	rgba_char_args_set(btheme->tarm[0].solid, 0x9a, 0x00, 0x00, 255);
@@ -786,7 +786,7 @@ static void ui_theme_init_boneColorSets(bTheme *btheme)
 	rgba_char_args_set(btheme->tarm[14].solid, 0x08, 0x31, 0x0e, 255);
 	rgba_char_args_set(btheme->tarm[14].select, 0x1c, 0x43, 0x0b, 255);
 	rgba_char_args_set(btheme->tarm[14].active, 0x34, 0x62, 0x2b, 255);
-	
+
 	/* reset flags too */
 	for (i = 0; i < 20; i++)
 		btheme->tarm[i].flag = 0;
@@ -867,16 +867,16 @@ static void ui_theme_space_init_manipulator_colors(bTheme *btheme)
 void ui_theme_init_default(void)
 {
 	bTheme *btheme;
-	
+
 	/* we search for the theme with name Default */
 	btheme = BLI_findstring(&U.themes, "Default", offsetof(bTheme, name));
-	
+
 	if (btheme == NULL) {
 		btheme = MEM_callocN(sizeof(bTheme), "theme");
 		BLI_addtail(&U.themes, btheme);
 		strcpy(btheme->name, "Default");
 	}
-	
+
 	UI_SetTheme(0, 0);  /* make sure the global used in this file is set */
 
 	/* UI buttons */
@@ -893,13 +893,13 @@ void ui_theme_init_default(void)
 
 	btheme->tui.menu_shadow_fac = 0.5f;
 	btheme->tui.menu_shadow_width = 12;
-	
+
 	/* Bone Color Sets */
 	ui_theme_init_boneColorSets(btheme);
-	
+
 	/* common (new) variables */
 	ui_theme_init_new(btheme);
-	
+
 	/* Manipulator. */
 	ui_theme_space_init_manipulator_colors(btheme);
 
@@ -907,11 +907,11 @@ void ui_theme_init_default(void)
 	rgba_char_args_set_fl(btheme->tv3d.back,       0.225, 0.225, 0.225, 1.0);
 	rgba_char_args_set(btheme->tv3d.text,       0, 0, 0, 255);
 	rgba_char_args_set(btheme->tv3d.text_hi, 255, 255, 255, 255);
-	
+
 	rgba_char_args_set_fl(btheme->tv3d.header,  0.45, 0.45, 0.45, 1.0);
 	rgba_char_args_set_fl(btheme->tv3d.button,  0.45, 0.45, 0.45, 0.5);
 //	rgba_char_args_set(btheme->tv3d.panel,      165, 165, 165, 127);
-	
+
 	rgba_char_args_set(btheme->tv3d.shade1,  160, 160, 160, 100);
 	rgba_char_args_set(btheme->tv3d.shade2,  0x7f, 0x70, 0x70, 100);
 
@@ -1024,7 +1024,7 @@ void ui_theme_init_default(void)
 	rgba_char_args_set(btheme->tipo.handle_auto_clamped, 0x99, 0x40, 0x30, 255);
 	rgba_char_args_set(btheme->tipo.handle_sel_auto_clamped, 0xf0, 0xaf, 0x90, 255);
 	btheme->tipo.handle_vertex_size = 5;
-	
+
 	rgba_char_args_set(btheme->tipo.ds_channel,      82, 96, 110, 255);
 	rgba_char_args_set(btheme->tipo.ds_subchannel,  124, 137, 150, 255);
 	rgba_char_args_set(btheme->tipo.group,           79, 101, 73, 255);
@@ -1034,9 +1034,9 @@ void ui_theme_init_default(void)
 	btheme->tact = btheme->tipo;
 	rgba_char_args_set(btheme->tact.strip,          12, 10, 10, 128);
 	rgba_char_args_set(btheme->tact.strip_select,   255, 140, 0, 255);
-	
+
 	rgba_char_args_set(btheme->tact.anim_active,    204, 112, 26, 102);
-	
+
 	rgba_char_args_set(btheme->tact.keytype_keyframe,           232, 232, 232, 255);
 	rgba_char_args_set(btheme->tact.keytype_keyframe_select,    255, 190,  50, 255);
 	rgba_char_args_set(btheme->tact.keytype_extreme,            232, 179, 204, 255);
@@ -1045,31 +1045,31 @@ void ui_theme_init_default(void)
 	rgba_char_args_set(btheme->tact.keytype_breakdown_select,    84, 191, 237, 255);
 	rgba_char_args_set(btheme->tact.keytype_jitter,             148, 229, 117, 255);
 	rgba_char_args_set(btheme->tact.keytype_jitter_select,       97, 192,  66, 255);
-	
+
 	rgba_char_args_set(btheme->tact.keyborder,               0,   0,   0, 255);
 	rgba_char_args_set(btheme->tact.keyborder_select,        0,   0,   0, 255);
-	
+
 	btheme->tact.keyframe_scale_fac = 1.0f;
-	
+
 	/* space nla */
 	btheme->tnla = btheme->tact;
-	
+
 	rgba_char_args_set(btheme->tnla.anim_active,     204, 112, 26, 102); /* same as for dopesheet; duplicate here for easier reference */
 	rgba_char_args_set(btheme->tnla.anim_non_active, 153, 135, 97, 77);
-	
+
 	rgba_char_args_set(btheme->tnla.nla_tweaking,   77, 243, 26, 77);
 	rgba_char_args_set(btheme->tnla.nla_tweakdupli, 217, 0, 0, 255);
-	
+
 	rgba_char_args_set(btheme->tnla.nla_transition,     28, 38, 48, 255);
 	rgba_char_args_set(btheme->tnla.nla_transition_sel, 46, 117, 219, 255);
 	rgba_char_args_set(btheme->tnla.nla_meta,           51, 38, 66, 255);
 	rgba_char_args_set(btheme->tnla.nla_meta_sel,       105, 33, 150, 255);
 	rgba_char_args_set(btheme->tnla.nla_sound,          43, 61, 61, 255);
 	rgba_char_args_set(btheme->tnla.nla_sound_sel,      31, 122, 122, 255);
-	
+
 	rgba_char_args_set(btheme->tnla.keyborder,               0,   0,   0, 255);
 	rgba_char_args_set(btheme->tnla.keyborder_select,        0,   0,   0, 255);
-	
+
 	/* space file */
 	/* to have something initialized */
 	btheme->tfile = btheme->tv3d;
@@ -1085,7 +1085,7 @@ void ui_theme_init_default(void)
 	rgba_char_args_set(btheme->tfile.movie, 250, 250, 250, 255);
 	rgba_char_args_set(btheme->tfile.scene, 250, 250, 250, 255);
 
-	
+
 	/* space seq */
 	btheme->tseq = btheme->tv3d;
 	rgba_char_args_set(btheme->tseq.back,   116, 116, 116, 255);
@@ -1134,7 +1134,7 @@ void ui_theme_init_default(void)
 	rgba_char_args_set(btheme->text.shade1,     143, 143, 143, 255);
 	rgba_char_args_set(btheme->text.shade2,     0xc6, 0x77, 0x77, 255);
 	rgba_char_args_set(btheme->text.hilite,     255, 0, 0, 255);
-	
+
 	/* syntax highlighting */
 	rgba_char_args_set(btheme->text.syntaxn,    0, 0, 200, 255);    /* Numbers  Blue*/
 	rgba_char_args_set(btheme->text.syntaxl,    100, 0, 0, 255);    /* Strings  Red */
@@ -1144,11 +1144,11 @@ void ui_theme_init_default(void)
 	rgba_char_args_set(btheme->text.syntaxr,    140, 60, 0, 255);   /* Reserved  Orange*/
 	rgba_char_args_set(btheme->text.syntaxb,    128, 0, 80, 255);   /* Builtin  Red-purple */
 	rgba_char_args_set(btheme->text.syntaxs,    76, 76, 76, 255);   /* Gray (mix between fg/bg) */
-	
+
 	/* space oops */
 	btheme->toops = btheme->tv3d;
 	rgba_char_args_set_fl(btheme->toops.back,   0.45, 0.45, 0.45, 1.0);
-	
+
 	rgba_char_args_set_fl(btheme->toops.match,  0.2, 0.5, 0.2, 0.3);    /* highlighting search match - soft green*/
 	rgba_char_args_set_fl(btheme->toops.selected_highlight, 0.51, 0.53, 0.55, 0.3);
 
@@ -1169,7 +1169,7 @@ void ui_theme_init_default(void)
 	/* space user preferences */
 	btheme->tuserpref = btheme->tv3d;
 	rgba_char_args_set_fl(btheme->tuserpref.back, 0.45, 0.45, 0.45, 1.0);
-	
+
 	/* space console */
 	btheme->tconsole = btheme->tv3d;
 	rgba_char_args_set(btheme->tconsole.back, 0, 0, 0, 255);
@@ -1179,16 +1179,16 @@ void ui_theme_init_default(void)
 	rgba_char_args_set(btheme->tconsole.console_error, 220, 96, 96, 255);
 	rgba_char_args_set(btheme->tconsole.console_cursor, 220, 96, 96, 255);
 	rgba_char_args_set(btheme->tconsole.console_select, 255, 255, 255, 48);
-	
+
 	/* space time */
 	btheme->ttime = btheme->tv3d;
 	rgba_char_args_set_fl(btheme->ttime.back,   0.45, 0.45, 0.45, 1.0);
 	rgba_char_args_set_fl(btheme->ttime.grid,   0.36, 0.36, 0.36, 1.0);
 	rgba_char_args_set(btheme->ttime.shade1,  173, 173, 173, 255);      /* sliders */
-	
+
 	rgba_char_args_set(btheme->ttime.time_keyframe, 0xDD, 0xD7, 0x00, 0xFF);
 	rgba_char_args_set(btheme->ttime.time_gp_keyframe, 0xB5, 0xE6, 0x1D, 0xFF);
-	
+
 	/* space node, re-uses syntax and console color storage */
 	btheme->tnode = btheme->tv3d;
 	rgba_char_args_set(btheme->tnode.syntaxr, 115, 115, 115, 255);  /* wire inner color */
@@ -1291,7 +1291,7 @@ void UI_Theme_Restore(struct bThemeState *theme_state)
 void UI_ThemeColor(int colorid)
 {
 	const unsigned char *cp;
-	
+
 	cp = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid);
 	glColor3ubv(cp);
 
@@ -1301,7 +1301,7 @@ void UI_ThemeColor(int colorid)
 void UI_ThemeColor4(int colorid)
 {
 	const unsigned char *cp;
-	
+
 	cp = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid);
 	glColor4ubv(cp);
 }
@@ -1318,7 +1318,7 @@ void UI_ThemeColorShadeAlpha(int colorid, int coloffset, int alphaoffset)
 {
 	int r, g, b, a;
 	const unsigned char *cp;
-	
+
 	cp = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid);
 	r = coloffset + (int) cp[0];
 	CLAMP(r, 0, 255);
@@ -1336,7 +1336,7 @@ void UI_GetThemeColorShadeAlpha4ubv(int colorid, int coloffset, int alphaoffset,
 {
 	int r, g, b, a;
 	const unsigned char *cp;
-	
+
 	cp = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid);
 	r = coloffset + (int) cp[0];
 	CLAMP(r, 0, 255);
@@ -1392,7 +1392,7 @@ void UI_ThemeColorBlendShade(int colorid1, int colorid2, float fac, int offset)
 {
 	int r, g, b;
 	const unsigned char *cp1, *cp2;
-	
+
 	cp1 = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid1);
 	cp2 = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid2);
 
@@ -1400,11 +1400,11 @@ void UI_ThemeColorBlendShade(int colorid1, int colorid2, float fac, int offset)
 	r = offset + floorf((1.0f - fac) * cp1[0] + fac * cp2[0]);
 	g = offset + floorf((1.0f - fac) * cp1[1] + fac * cp2[1]);
 	b = offset + floorf((1.0f - fac) * cp1[2] + fac * cp2[2]);
-	
+
 	CLAMP(r, 0, 255);
 	CLAMP(g, 0, 255);
 	CLAMP(b, 0, 255);
-	
+
 	glColor3ub(r, g, b);
 }
 
@@ -1413,7 +1413,7 @@ void UI_ThemeColorBlendShadeAlpha(int colorid1, int colorid2, float fac, int off
 {
 	int r, g, b, a;
 	const unsigned char *cp1, *cp2;
-	
+
 	cp1 = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid1);
 	cp2 = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid2);
 
@@ -1422,7 +1422,7 @@ void UI_ThemeColorBlendShadeAlpha(int colorid1, int colorid2, float fac, int off
 	g = offset + floorf((1.0f - fac) * cp1[1] + fac * cp2[1]);
 	b = offset + floorf((1.0f - fac) * cp1[2] + fac * cp2[2]);
 	a = alphaoffset + floorf((1.0f - fac) * cp1[3] + fac * cp2[3]);
-	
+
 	CLAMP(r, 0, 255);
 	CLAMP(g, 0, 255);
 	CLAMP(b, 0, 255);
@@ -1442,7 +1442,7 @@ void UI_FontThemeColor(int fontid, int colorid)
 float UI_GetThemeValuef(int colorid)
 {
 	const unsigned char *cp;
-	
+
 	cp = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid);
 	return ((float)cp[0]);
 }
@@ -1451,7 +1451,7 @@ float UI_GetThemeValuef(int colorid)
 int UI_GetThemeValue(int colorid)
 {
 	const unsigned char *cp;
-	
+
 	cp = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid);
 	return ((int) cp[0]);
 }
@@ -1478,7 +1478,7 @@ int UI_GetThemeValueType(int colorid, int spacetype)
 void UI_GetThemeColor3fv(int colorid, float col[3])
 {
 	const unsigned char *cp;
-	
+
 	cp = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid);
 	col[0] = ((float)cp[0]) / 255.0f;
 	col[1] = ((float)cp[1]) / 255.0f;
@@ -1488,7 +1488,7 @@ void UI_GetThemeColor3fv(int colorid, float col[3])
 void UI_GetThemeColor4fv(int colorid, float col[4])
 {
 	const unsigned char *cp;
-	
+
 	cp = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid);
 	col[0] = ((float)cp[0]) / 255.0f;
 	col[1] = ((float)cp[1]) / 255.0f;
@@ -1501,16 +1501,16 @@ void UI_GetThemeColorShade3fv(int colorid, int offset, float col[3])
 {
 	int r, g, b;
 	const unsigned char *cp;
-	
+
 	cp = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid);
-	
+
 	r = offset + (int) cp[0];
 	CLAMP(r, 0, 255);
 	g = offset + (int) cp[1];
 	CLAMP(g, 0, 255);
 	b = offset + (int) cp[2];
 	CLAMP(b, 0, 255);
-	
+
 	col[0] = ((float)r) / 255.0f;
 	col[1] = ((float)g) / 255.0f;
 	col[2] = ((float)b) / 255.0f;
@@ -1644,7 +1644,7 @@ void UI_GetThemeColorBlendShade4fv(int colorid1, int colorid2, float fac, int of
 void UI_GetThemeColor3ubv(int colorid, unsigned char col[3])
 {
 	const unsigned char *cp;
-	
+
 	cp = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid);
 	col[0] = cp[0];
 	col[1] = cp[1];
@@ -1656,19 +1656,19 @@ void UI_GetThemeColorShade4fv(int colorid, int offset, float col[4])
 {
 	int r, g, b, a;
 	const unsigned char *cp;
-	
+
 	cp = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid);
-	
+
 	r = offset + (int) cp[0];
 	CLAMP(r, 0, 255);
 	g = offset + (int) cp[1];
 	CLAMP(g, 0, 255);
 	b = offset + (int) cp[2];
 	CLAMP(b, 0, 255);
-	
+
 	a = (int) cp[3]; /* no shading offset... */
 	CLAMP(a, 0, 255);
-	
+
 	col[0] = ((float)r) / 255.0f;
 	col[1] = ((float)g) / 255.0f;
 	col[2] = ((float)b) / 255.0f;
@@ -1679,7 +1679,7 @@ void UI_GetThemeColorShade4fv(int colorid, int offset, float col[4])
 void UI_GetThemeColor4ubv(int colorid, unsigned char col[4])
 {
 	const unsigned char *cp;
-	
+
 	cp = UI_ThemeGetColorPtr(theme_active, theme_spacetype, colorid);
 	col[0] = cp[0];
 	col[1] = cp[1];
@@ -1690,7 +1690,7 @@ void UI_GetThemeColor4ubv(int colorid, unsigned char col[4])
 void UI_GetThemeColorType4ubv(int colorid, int spacetype, char col[4])
 {
 	const unsigned char *cp;
-	
+
 	cp = UI_ThemeGetColorPtr(theme_active, spacetype, colorid);
 	col[0] = cp[0];
 	col[1] = cp[1];
@@ -1710,7 +1710,7 @@ void UI_ColorPtrBlendShade3ubv(const unsigned char cp1[3], const unsigned char c
 	r = r < 0 ? 0 : (r > 255 ? 255 : r);
 	g = g < 0 ? 0 : (g > 255 ? 255 : g);
 	b = b < 0 ? 0 : (b > 255 ? 255 : b);
-	
+
 	glColor3ub(r, g, b);
 }
 
@@ -1755,7 +1755,7 @@ void UI_GetColorPtrBlendShade3ubv(
 void UI_ThemeClearColor(int colorid)
 {
 	float col[3];
-	
+
 	UI_GetThemeColor3fv(colorid, col);
 	glClearColor(col[0], col[1], col[2], 0.0f);
 }
@@ -1777,7 +1777,7 @@ int UI_ThemeMenuShadowWidth(void)
 void UI_make_axis_color(const unsigned char src_col[3], unsigned char dst_col[3], const char axis)
 {
 	unsigned char col[3];
-	
+
 	switch (axis) {
 		case 'X':
 			UI_GetThemeColor3ubv(TH_AXIS_X, col);
@@ -1803,7 +1803,7 @@ void UI_make_axis_color(const unsigned char src_col[3], unsigned char dst_col[3]
 void init_userdef_do_versions(void)
 {
 	Main *bmain = G.main;
-	
+
 #define USER_VERSION_ATLEAST(ver, subver) MAIN_VERSION_ATLEAST(bmain, ver, subver)
 
 	/* the UserDef struct is not corrected with do_versions() .... ugh! */
@@ -1834,12 +1834,12 @@ void init_userdef_do_versions(void)
 	}
 	if (U.pad_rot_angle == 0.0f)
 		U.pad_rot_angle = 15.0f;
-	
+
 	/* graph editor - unselected F-Curve visibility */
 	if (U.fcu_inactive_alpha == 0) {
 		U.fcu_inactive_alpha = 0.25f;
 	}
-	
+
 	/* signal for derivedmesh to use colorband */
 	/* run in case this was on and is now off in the user prefs [#28096] */
 	vDM_ColorBand_store((U.flag & USER_CUSTOM_RANGE) ? (&U.coba_weight) : NULL, UI_GetTheme()->tv3d.vertex_unreferenced);
@@ -1847,19 +1847,19 @@ void init_userdef_do_versions(void)
 	if (!USER_VERSION_ATLEAST(192, 0)) {
 		strcpy(U.sounddir, "/");
 	}
-	
+
 	/* patch to set Dupli Armature */
 	if (!USER_VERSION_ATLEAST(220, 0)) {
 		U.dupflag |= USER_DUP_ARM;
 	}
-	
+
 	/* added seam, normal color, undo */
 	if (!USER_VERSION_ATLEAST(235, 0)) {
 		bTheme *btheme;
-		
+
 		U.uiflag |= USER_GLOBALUNDO;
 		if (U.undosteps == 0) U.undosteps = 32;
-		
+
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			/* check for (alpha == 0) is safe, then color was never set */
 			if (btheme->tv3d.edge_seam[3] == 0) {
@@ -1879,7 +1879,7 @@ void init_userdef_do_versions(void)
 	}
 	if (!USER_VERSION_ATLEAST(236, 0)) {
 		/* illegal combo... */
-		if (U.flag & USER_LMOUSESELECT) 
+		if (U.flag & USER_LMOUSESELECT)
 			U.flag &= ~USER_TWOBUTTONMOUSE;
 	}
 	if (!USER_VERSION_ATLEAST(237, 0)) {
@@ -1927,15 +1927,15 @@ void init_userdef_do_versions(void)
 	}
 	if (!USER_VERSION_ATLEAST(240, 0)) {
 		bTheme *btheme;
-		
+
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			/* Lamp theme, check for alpha==0 is safe, then color was never set */
 			if (btheme->tv3d.lamp[3] == 0) {
 				rgba_char_args_set(btheme->tv3d.lamp,   0, 0, 0, 40);
-/* TEMPORAL, remove me! (ton) */				
+/* TEMPORAL, remove me! (ton) */
 				U.uiflag |= USER_PLAINMENUS;
 			}
-			
+
 		}
 		if (U.obcenter_dia == 0) U.obcenter_dia = 6;
 	}
@@ -1969,19 +1969,19 @@ void init_userdef_do_versions(void)
 				rgba_char_args_set(btheme->tseq.meta,   109, 145, 131, 255);
 			}
 		}
-		
-		/* set defaults for 3D View rotating axis indicator */ 
+
+		/* set defaults for 3D View rotating axis indicator */
 		/* since size can't be set to 0, this indicates it's not saved in startup.blend */
 		if (U.rvisize == 0) {
 			U.rvisize = 15;
 			U.rvibright = 8;
 			U.uiflag |= USER_SHOW_ROTVIEWICON;
 		}
-		
+
 	}
 	if (!USER_VERSION_ATLEAST(243, 0)) {
 		bTheme *btheme;
-		
+
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			/* long keyframe color */
 			/* check for alpha==0 is safe, then color was never set */
@@ -1990,7 +1990,7 @@ void init_userdef_do_versions(void)
 				rgba_char_args_set(btheme->tact.strip_select,   0xff, 0xff, 0xaa, 204);
 				rgba_char_args_set(btheme->tact.strip, 0xe4, 0x9c, 0xc6, 204);
 			}
-			
+
 			/* IPO-Editor - Vertex Size*/
 			if (btheme->tipo.vertex_size == 0) {
 				btheme->tipo.vertex_size = 3;
@@ -2028,7 +2028,7 @@ void init_userdef_do_versions(void)
 			/* action channel groups (recolor anyway) */
 			rgba_char_args_set(btheme->tact.group, 0x39, 0x7d, 0x1b, 255);
 			rgba_char_args_set(btheme->tact.group_active, 0x7d, 0xe9, 0x60, 255);
-			
+
 			/* bone custom-color sets */
 			if (btheme->tarm[0].solid[3] == 0)
 				ui_theme_init_boneColorSets(btheme);
@@ -2039,18 +2039,18 @@ void init_userdef_do_versions(void)
 	}
 	if (!USER_VERSION_ATLEAST(245, 3)) {
 		bTheme *btheme;
-		
+
 		/* adjust themes */
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			const char *col;
-			
+
 			/* IPO Editor: Handles/Vertices */
 			col = btheme->tipo.vertex;
 			rgba_char_args_set(btheme->tipo.handle_vertex, col[0], col[1], col[2], 255);
 			col = btheme->tipo.vertex_select;
 			rgba_char_args_set(btheme->tipo.handle_vertex_select, col[0], col[1], col[2], 255);
 			btheme->tipo.handle_vertex_size = btheme->tipo.vertex_size;
-			
+
 			/* Sequence/Image Editor: colors for GPencil text */
 			col = btheme->tv3d.bone_pose;
 			rgba_char_args_set(btheme->tseq.bone_pose, col[0], col[1], col[2], 255);
@@ -2061,7 +2061,7 @@ void init_userdef_do_versions(void)
 	}
 	if (!USER_VERSION_ATLEAST(250, 0)) {
 		bTheme *btheme;
-		
+
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			/* this was not properly initialized in 2.45 */
 			if (btheme->tima.face_dot[3] == 0) {
@@ -2069,21 +2069,21 @@ void init_userdef_do_versions(void)
 				rgba_char_args_set(btheme->tima.face_dot, 255, 133, 0, 255);
 				btheme->tima.facedot_size = 2;
 			}
-			
+
 			/* DopeSheet - (Object) Channel color */
 			rgba_char_args_set(btheme->tact.ds_channel,     82, 96, 110, 255);
 			rgba_char_args_set(btheme->tact.ds_subchannel,  124, 137, 150, 255);
 			/* DopeSheet - Group Channel color (saner version) */
 			rgba_char_args_set(btheme->tact.group, 79, 101, 73, 255);
 			rgba_char_args_set(btheme->tact.group_active, 135, 177, 125, 255);
-			
+
 			/* Graph Editor - (Object) Channel color */
 			rgba_char_args_set(btheme->tipo.ds_channel,     82, 96, 110, 255);
 			rgba_char_args_set(btheme->tipo.ds_subchannel,  124, 137, 150, 255);
 			/* Graph Editor - Group Channel color */
 			rgba_char_args_set(btheme->tipo.group, 79, 101, 73, 255);
 			rgba_char_args_set(btheme->tipo.group_active, 135, 177, 125, 255);
-			
+
 			/* Nla Editor - (Object) Channel color */
 			rgba_char_args_set(btheme->tnla.ds_channel,     82, 96, 110, 255);
 			rgba_char_args_set(btheme->tnla.ds_subchannel,  124, 137, 150, 255);
@@ -2091,20 +2091,20 @@ void init_userdef_do_versions(void)
 			rgba_char_args_set(btheme->tnla.strip,          12, 10, 10, 128);
 			rgba_char_args_set(btheme->tnla.strip_select,   255, 140, 0, 255);
 		}
-		
+
 		/* adjust grease-pencil distances */
 		U.gp_manhattendist = 1;
 		U.gp_euclideandist = 2;
-		
+
 		/* adjust default interpolation for new IPO-curves */
 		U.ipo_new = BEZT_IPO_BEZ;
 	}
-	
+
 	if (!USER_VERSION_ATLEAST(250, 1)) {
 		bTheme *btheme;
 
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
-			
+
 			/* common (new) variables, it checks for alpha==0 */
 			ui_theme_init_new(btheme);
 
@@ -2133,10 +2133,10 @@ void init_userdef_do_versions(void)
 		if (U.audiorate == 0)
 			U.audiorate = 48000;
 	}
-	
+
 	if (!USER_VERSION_ATLEAST(250, 8)) {
 		wmKeyMap *km;
-		
+
 		for (km = U.user_keymaps.first; km; km = km->next) {
 			if (STREQ(km->idname, "Armature_Sketch"))
 				strcpy(km->idname, "Armature Sketch");
@@ -2172,17 +2172,17 @@ void init_userdef_do_versions(void)
 				strcpy(km->idname, "Property Editor");
 		}
 	}
-	
+
 	if (!USER_VERSION_ATLEAST(252, 3)) {
-		if (U.flag & USER_LMOUSESELECT) 
+		if (U.flag & USER_LMOUSESELECT)
 			U.flag &= ~USER_TWOBUTTONMOUSE;
 	}
 	if (!USER_VERSION_ATLEAST(252, 4)) {
 		bTheme *btheme;
-		
+
 		/* default new handle type is auto handles */
 		U.keyhandles_new = HD_AUTO;
-		
+
 		/* init new curve colors */
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			ui_theme_space_init_handles_color(&btheme->tv3d);
@@ -2203,21 +2203,21 @@ void init_userdef_do_versions(void)
 	}
 	if (!USER_VERSION_ATLEAST(252, 5)) {
 		bTheme *btheme;
-		
+
 		/* interface_widgets.c */
 		struct uiWidgetColors wcol_progress = {
 			{0, 0, 0, 255},
 			{190, 190, 190, 255},
 			{100, 100, 100, 180},
 			{128, 128, 128, 255},
-			
+
 			{0, 0, 0, 255},
 			{255, 255, 255, 255},
-			
+
 			0,
 			5, -5
 		};
-		
+
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			/* init progress bar theme */
 			btheme->tui.wcol_progress = wcol_progress;
@@ -2232,7 +2232,7 @@ void init_userdef_do_versions(void)
 			rgba_char_args_set(btheme->tv3d.extra_face_area, 0, 0, 128, 255);
 		}
 	}
-	
+
 	if (!USER_VERSION_ATLEAST(256, 4)) {
 		bTheme *btheme;
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
@@ -2255,7 +2255,7 @@ void init_userdef_do_versions(void)
 
 	if (!USER_VERSION_ATLEAST(259, 1)) {
 		bTheme *btheme;
-		
+
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			btheme->tv3d.speaker[3] = 255;
 		}
@@ -2263,23 +2263,23 @@ void init_userdef_do_versions(void)
 
 	if (!USER_VERSION_ATLEAST(260, 3)) {
 		bTheme *btheme;
-		
-		/* if new keyframes handle default is stuff "auto", make it "auto-clamped" instead 
+
+		/* if new keyframes handle default is stuff "auto", make it "auto-clamped" instead
 		 * was changed in 260 as part of GSoC11, but version patch was wrong
 		 */
-		if (U.keyhandles_new == HD_AUTO) 
+		if (U.keyhandles_new == HD_AUTO)
 			U.keyhandles_new = HD_AUTO_ANIM;
-		
+
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			if (btheme->tv3d.bundle_solid[3] == 0)
 				rgba_char_args_set(btheme->tv3d.bundle_solid, 200, 200, 200, 255);
-			
+
 			if (btheme->tv3d.camera_path[3] == 0)
 				rgba_char_args_set(btheme->tv3d.camera_path, 0x00, 0x00, 0x00, 255);
-				
+
 			if ((btheme->tclip.back[3]) == 0) {
 				btheme->tclip = btheme->tv3d;
-				
+
 				rgba_char_args_set(btheme->tclip.marker_outline, 0x00, 0x00, 0x00, 255);
 				rgba_char_args_set(btheme->tclip.marker, 0x7f, 0x7f, 0x00, 255);
 				rgba_char_args_set(btheme->tclip.act_marker, 0xff, 0xff, 0xff, 255);
@@ -2294,7 +2294,7 @@ void init_userdef_do_versions(void)
 				rgba_char_args_set(btheme->tclip.handle_vertex_select, 0xff, 0xff, 0, 0xff);
 				btheme->tclip.handle_vertex_size = 5;
 			}
-			
+
 			/* auto-clamped handles -> based on auto */
 			if (btheme->tipo.handle_auto_clamped[3] == 0)
 				rgba_char_args_set(btheme->tipo.handle_auto_clamped, 0x99, 0x40, 0x30, 255);
@@ -2305,16 +2305,16 @@ void init_userdef_do_versions(void)
 		/* enable (Cycles) addon by default */
 		BKE_addon_ensure(&U.addons, "cycles");
 	}
-	
+
 	if (!USER_VERSION_ATLEAST(260, 5)) {
 		bTheme *btheme;
-		
+
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			rgba_char_args_set(btheme->tui.panel.header, 0, 0, 0, 25);
 			btheme->tui.icon_alpha = 1.0;
 		}
 	}
-	
+
 	if (!USER_VERSION_ATLEAST(261, 4)) {
 		bTheme *btheme;
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
@@ -2324,11 +2324,11 @@ void init_userdef_do_versions(void)
 			rgba_char_args_set_fl(btheme->tima.preview_stitch_stitchable, 0.0, 1.0, 0.0, 1.0);
 			rgba_char_args_set_fl(btheme->tima.preview_stitch_unstitchable, 1.0, 0.0, 0.0, 1.0);
 			rgba_char_args_set_fl(btheme->tima.preview_stitch_active, 0.886, 0.824, 0.765, 0.140);
-			
+
 			rgba_char_args_set_fl(btheme->toops.match, 0.2, 0.5, 0.2, 0.3);
 			rgba_char_args_set_fl(btheme->toops.selected_highlight, 0.51, 0.53, 0.55, 0.3);
 		}
-		
+
 		U.use_16bit_textures = true;
 	}
 
@@ -2377,21 +2377,21 @@ void init_userdef_do_versions(void)
 		for (btheme = U.themes.first; btheme; btheme = btheme->next)
 			rgba_char_args_set(btheme->tv3d.skin_root, 180, 77, 77, 255);
 	}
-	
+
 	if (!USER_VERSION_ATLEAST(263, 7)) {
 		bTheme *btheme;
-		
+
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			/* DopeSheet Summary */
-			rgba_char_args_set(btheme->tact.anim_active,    204, 112, 26, 102); 
-			
+			rgba_char_args_set(btheme->tact.anim_active,    204, 112, 26, 102);
+
 			/* NLA Colors */
 			rgba_char_args_set(btheme->tnla.anim_active,     204, 112, 26, 102); /* same as dopesheet above */
 			rgba_char_args_set(btheme->tnla.anim_non_active, 153, 135, 97, 77);
-			
+
 			rgba_char_args_set(btheme->tnla.nla_tweaking,   77, 243, 26, 77);
 			rgba_char_args_set(btheme->tnla.nla_tweakdupli, 217, 0, 0, 255);
-			
+
 			rgba_char_args_set(btheme->tnla.nla_transition,     28, 38, 48, 255);
 			rgba_char_args_set(btheme->tnla.nla_transition_sel, 46, 117, 219, 255);
 			rgba_char_args_set(btheme->tnla.nla_meta,           51, 38, 66, 255);
@@ -2440,10 +2440,10 @@ void init_userdef_do_versions(void)
 				rgba_char_args_set(btheme->tv3d.skin_root, 180, 77, 77, 255);
 		}
 	}
-	
+
 	if (!USER_VERSION_ATLEAST(264, 9)) {
 		bTheme *btheme;
-		
+
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			rgba_char_args_set(btheme->tui.xaxis, 220,   0,   0, 255);
 			rgba_char_args_set(btheme->tui.yaxis,   0, 220,   0, 255);
@@ -2496,7 +2496,7 @@ void init_userdef_do_versions(void)
 			U.ndof_sensitivity = 1.0f;
 			U.ndof_flag = (NDOF_LOCK_HORIZON | NDOF_SHOULD_PAN | NDOF_SHOULD_ZOOM | NDOF_SHOULD_ROTATE);
 		}
-		
+
 		if (U.ndof_orbit_sensitivity == 0.0f) {
 			U.ndof_orbit_sensitivity = U.ndof_sensitivity;
 
@@ -2509,7 +2509,7 @@ void init_userdef_do_versions(void)
 
 	if (!USER_VERSION_ATLEAST(265, 1)) {
 		bTheme *btheme;
-		
+
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			/* note: the toggle operator for transparent backdrops limits to these spacetypes */
 			if (btheme->tnode.button[3] == 255) {
@@ -2521,18 +2521,18 @@ void init_userdef_do_versions(void)
 			}
 		}
 	}
-	
+
 	/* panel header/backdrop supported locally per editor now */
 	if (!USER_VERSION_ATLEAST(265, 2)) {
 		bTheme *btheme;
-		
+
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			ThemeSpace *ts;
-			
+
 			/* new color, panel backdrop. Not used anywhere yet, until you enable it */
 			copy_v3_v3_char(btheme->tui.panel.back, btheme->tbuts.button);
 			btheme->tui.panel.back[3] = 128;
-			
+
 			for (ts = UI_THEMESPACE_START(btheme); ts != UI_THEMESPACE_END(btheme); ts++) {
 				ts->panelcolors = btheme->tui.panel;
 			}
@@ -2545,7 +2545,7 @@ void init_userdef_do_versions(void)
 
 	if (!USER_VERSION_ATLEAST(266, 0)) {
 		bTheme *btheme;
-		
+
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
 			/* rna definition limits fac to 0.01 */
 			if (btheme->tui.menu_shadow_fac == 0.0f) {
@@ -2645,7 +2645,7 @@ void init_userdef_do_versions(void)
 			rgba_char_args_test_set(btheme->tinfo.info_debug_text, 0, 0, 0, 255);
 		}
 	}
-	
+
 	if (!USER_VERSION_ATLEAST(269, 9)) {
 		bTheme *btheme;
 		/* Action Editor (and NLA Editor) - Keyframe Colors */
@@ -2661,21 +2661,21 @@ void init_userdef_do_versions(void)
 			rgba_char_args_set(btheme->tact.keytype_breakdown_select,    84, 191, 237, 255);
 			rgba_char_args_set(btheme->tact.keytype_jitter,             148, 229, 117, 255);
 			rgba_char_args_set(btheme->tact.keytype_jitter_select,       97, 192,  66, 255);
-			
+
 			/* key border */
 			rgba_char_args_set(btheme->tact.keyborder,               0,   0,   0, 255);
 			rgba_char_args_set(btheme->tact.keyborder_select,        0,   0,   0, 255);
-			
+
 			/* NLA ............................ */
 			/* key border */
 			rgba_char_args_set(btheme->tnla.keyborder,               0,   0,   0, 255);
 			rgba_char_args_set(btheme->tnla.keyborder_select,        0,   0,   0, 255);
-			
+
 			/* Graph Editor ................... */
 			btheme->tipo.vertex_size = 6;
 			btheme->tipo.handle_vertex_size = 5;
 		}
-		
+
 		/* grease pencil - new layer color */
 		if (U.gpencil_new_layer_col[3] < 0.1f) {
 			/* defaults to black, but must at least be visible! */
@@ -2761,7 +2761,7 @@ void init_userdef_do_versions(void)
 			rgba_char_args_set_fl(btheme->tui.widget_emboss, 1.0f, 1.0f, 1.0f, 0.02f);
 		}
 	}
-	
+
 	if (!USER_VERSION_ATLEAST(273, 1)) {
 		bTheme *btheme;
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
@@ -2769,15 +2769,15 @@ void init_userdef_do_versions(void)
 			rgba_char_args_set(btheme->tv3d.gp_vertex, 0, 0, 0, 255);
 			rgba_char_args_set(btheme->tv3d.gp_vertex_select, 255, 133, 0, 255);
 			btheme->tv3d.gp_vertex_size = 3;
-			
+
 			rgba_char_args_set(btheme->tseq.gp_vertex, 0, 0, 0, 255);
 			rgba_char_args_set(btheme->tseq.gp_vertex_select, 255, 133, 0, 255);
 			btheme->tseq.gp_vertex_size = 3;
-			
+
 			rgba_char_args_set(btheme->tima.gp_vertex, 0, 0, 0, 255);
 			rgba_char_args_set(btheme->tima.gp_vertex_select, 255, 133, 0, 255);
 			btheme->tima.gp_vertex_size = 3;
-			
+
 			rgba_char_args_set(btheme->tnode.gp_vertex, 0, 0, 0, 255);
 			rgba_char_args_set(btheme->tnode.gp_vertex_select, 255, 133, 0, 255);
 			btheme->tnode.gp_vertex_size = 3;
@@ -2874,7 +2874,7 @@ void init_userdef_do_versions(void)
 			}
 		}
 	}
-	
+
 	if (!USER_VERSION_ATLEAST(277, 2)) {
 		bTheme *btheme;
 		for (btheme = U.themes.first; btheme; btheme = btheme->next) {
@@ -2940,7 +2940,7 @@ void init_userdef_do_versions(void)
 			copy_v4_v4_char(btheme->ttopbar.back, tmp);
 		}
 	}
-	
+
 	if (!USER_VERSION_ATLEAST(280, 9)) {
 		/* Timeline removal */
 		for (bTheme *btheme = U.themes.first; btheme; btheme = btheme->next) {
@@ -2948,7 +2948,7 @@ void init_userdef_do_versions(void)
 				rgba_char_args_set(btheme->tipo.anim_active,    204, 112, 26, 102);
 			}
 			if (btheme->tseq.anim_active[3] == 0) {
-				rgba_char_args_set(btheme->tseq.anim_active,    204, 112, 26, 102);	
+				rgba_char_args_set(btheme->tseq.anim_active,    204, 112, 26, 102);
 			}
 		}
 	}
@@ -3016,10 +3016,10 @@ void init_userdef_do_versions(void)
 
 	if (U.pixelsize == 0.0f)
 		U.pixelsize = 1.0f;
-	
+
 	if (U.image_draw_method == 0)
 		U.image_draw_method = IMAGE_DRAW_METHOD_2DTEXTURE;
-	
+
 	// we default to the first audio device
 	U.audiodevice = 0;
 
diff --git a/source/blender/editors/interface/view2d.c b/source/blender/editors/interface/view2d.c
index 012809910bf..530a6e28860 100644
--- a/source/blender/editors/interface/view2d.c
+++ b/source/blender/editors/interface/view2d.c
@@ -4,7 +4,7 @@
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version. 
+ * of the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -17,7 +17,7 @@
  *
  * The Original Code is Copyright (C) 2008 Blender Foundation.
  * All rights reserved.
- * 
+ *
  * Contributor(s): Blender Foundation, Joshua Leung
  *
  * ***** END GPL LICENSE BLOCK *****
@@ -119,7 +119,7 @@ static int view2d_scroll_mapped(int scroll)
 static void view2d_masks(View2D *v2d, bool check_scrollers)
 {
 	int scroll;
-	
+
 	/* mask - view frame */
 	v2d->mask.xmin = v2d->mask.ymin = 0;
 	v2d->mask.xmax = v2d->winx - 1; /* -1 yes! masks are pixels */
@@ -144,9 +144,9 @@ static void view2d_masks(View2D *v2d, bool check_scrollers)
 			}
 		}
 	}
-	
+
 	scroll = view2d_scroll_mapped(v2d->scroll);
-	
+
 	/* scrollers are based off regionsize
 	 *	- they can only be on one to two edges of the region they define
 	 *	- if they overlap, they must not occupy the corners (which are reserved for other widgets)
@@ -170,7 +170,7 @@ static void view2d_masks(View2D *v2d, bool check_scrollers)
 			v2d->vert.xmax++; /* one pixel extra... was leaving a minor gap... */
 			v2d->vert.xmin = v2d->vert.xmax - scroll_width;
 		}
-		
+
 		/* horizontal scroller */
 		if (scroll & (V2D_SCROLL_BOTTOM)) {
 			/* on bottom edge of region */
@@ -182,7 +182,7 @@ static void view2d_masks(View2D *v2d, bool check_scrollers)
 			v2d->hor = v2d->mask;
 			v2d->hor.ymin = v2d->hor.ymax - scroll_height;
 		}
-		
+
 		/* adjust vertical scroller if there's a horizontal scroller, to leave corner free */
 		if (scroll & V2D_SCROLL_VERTICAL) {
 			if (scroll & (V2D_SCROLL_BOTTOM)) {
@@ -225,20 +225,20 @@ void UI_view2d_region_reinit(View2D *v2d, short type, int winx, int winy)
 			v2d->keepzoom = (V2D_KEEPASPECT | V2D_LIMITZOOM);
 			v2d->minzoom = 0.01f;
 			v2d->maxzoom = 1000.0f;
-			
-			/* tot rect and cur should be same size, and aligned using 'standard' OpenGL coordinates for now 
+
+			/* tot rect and cur should be same size, and aligned using 'standard' OpenGL coordinates for now
 			 *	- region can resize 'tot' later to fit other data
 			 *	- keeptot is only within bounds, as strict locking is not that critical
 			 *	- view is aligned for (0,0) -> (winx-1, winy-1) setup
 			 */
 			v2d->align = (V2D_ALIGN_NO_NEG_X | V2D_ALIGN_NO_NEG_Y);
 			v2d->keeptot = V2D_KEEPTOT_BOUNDS;
-			
+
 			if (do_init) {
 				v2d->tot.xmin = v2d->tot.ymin = 0.0f;
 				v2d->tot.xmax = (float)(winx - 1);
 				v2d->tot.ymax = (float)(winy - 1);
-				
+
 				v2d->cur = v2d->tot;
 			}
 			/* scrollers - should we have these by default? */
@@ -251,28 +251,28 @@ void UI_view2d_region_reinit(View2D *v2d, short type, int winx, int winy)
 			/* zoom + aspect ratio are locked */
 			v2d->keepzoom = (V2D_LOCKZOOM_X | V2D_LOCKZOOM_Y | V2D_LIMITZOOM | V2D_KEEPASPECT);
 			v2d->minzoom = v2d->maxzoom = 1.0f;
-			
+
 			/* tot rect has strictly regulated placement, and must only occur in +/- quadrant */
 			v2d->align = (V2D_ALIGN_NO_NEG_X | V2D_ALIGN_NO_POS_Y);
 			v2d->keeptot = V2D_KEEPTOT_STRICT;
 			tot_changed = do_init;
-			
+
 			/* scroller settings are currently not set here... that is left for regions... */
 			break;
 		}
-		/* 'stack view' - practically the same as list/channel view, except is located in the pos y half instead. 
+		/* 'stack view' - practically the same as list/channel view, except is located in the pos y half instead.
 		 *  zoom, aspect ratio, and alignment restrictions are set here */
 		case V2D_COMMONVIEW_STACK:
 		{
 			/* zoom + aspect ratio are locked */
 			v2d->keepzoom = (V2D_LOCKZOOM_X | V2D_LOCKZOOM_Y | V2D_LIMITZOOM | V2D_KEEPASPECT);
 			v2d->minzoom = v2d->maxzoom = 1.0f;
-			
+
 			/* tot rect has strictly regulated placement, and must only occur in +/+ quadrant */
 			v2d->align = (V2D_ALIGN_NO_NEG_X | V2D_ALIGN_NO_NEG_Y);
 			v2d->keeptot = V2D_KEEPTOT_STRICT;
 			tot_changed = do_init;
-			
+
 			/* scroller settings are currently not set here... that is left for regions... */
 			break;
 		}
@@ -282,14 +282,14 @@ void UI_view2d_region_reinit(View2D *v2d, short type, int winx, int winy)
 			/* zoom + aspect ratio are locked */
 			v2d->keepzoom = (V2D_LOCKZOOM_X | V2D_LOCKZOOM_Y | V2D_LIMITZOOM | V2D_KEEPASPECT);
 			v2d->minzoom = v2d->maxzoom = 1.0f;
-			
+
 			if (do_init) {
 				v2d->tot.xmin = 0.0f;
 				v2d->tot.xmax = winx;
 				v2d->tot.ymin = 0.0f;
 				v2d->tot.ymax = winy;
 				v2d->cur = v2d->tot;
-				
+
 				v2d->min[0] = v2d->max[0] = (float)(winx - 1);
 				v2d->min[1] = v2d->max[1] = (float)(winy - 1);
 			}
@@ -297,10 +297,10 @@ void UI_view2d_region_reinit(View2D *v2d, short type, int winx, int winy)
 			v2d->align = (V2D_ALIGN_NO_NEG_X | V2D_ALIGN_NO_NEG_Y);
 			v2d->keeptot = V2D_KEEPTOT_STRICT;
 			tot_changed = do_init;
-			
+
 			/* panning in y-axis is prohibited */
 			v2d->keepofs = V2D_LOCKOFS_Y;
-			
+
 			/* absolutely no scrollers allowed */
 			v2d->scroll = 0;
 			break;
@@ -308,15 +308,15 @@ void UI_view2d_region_reinit(View2D *v2d, short type, int winx, int winy)
 		/* panels view, with horizontal/vertical align */
 		case V2D_COMMONVIEW_PANELS_UI:
 		{
-			
+
 			/* for now, aspect ratio should be maintained, and zoom is clamped within sane default limits */
 			v2d->keepzoom = (V2D_KEEPASPECT | V2D_LIMITZOOM | V2D_KEEPZOOM);
 			v2d->minzoom = 0.5f;
 			v2d->maxzoom = 2.0f;
-			
+
 			v2d->align = (V2D_ALIGN_NO_NEG_X | V2D_ALIGN_NO_POS_Y);
 			v2d->keeptot = V2D_KEEPTOT_BOUNDS;
-			
+
 			/* note, scroll is being flipped in ED_region_panels() drawing */
 			v2d->scroll |= (V2D_SCROLL_HORIZONTAL_HIDE | V2D_SCROLL_VERTICAL_HIDE);
 
@@ -327,16 +327,16 @@ void UI_view2d_region_reinit(View2D *v2d, short type, int winx, int winy)
 
 			if (do_init) {
 				float panelzoom = (style) ? style->panelzoom : 1.0f;
-				
+
 				v2d->tot.xmin = 0.0f;
 				v2d->tot.xmax = winx;
-				
+
 				v2d->tot.ymax = 0.0f;
 				v2d->tot.ymin = -winy;
-				
+
 				v2d->cur.xmin = 0.0f;
 				v2d->cur.xmax = (winx) * panelzoom;
-				
+
 				v2d->cur.ymax = 0.0f;
 				v2d->cur.ymin = (-winy) * panelzoom;
 			}
@@ -347,29 +347,29 @@ void UI_view2d_region_reinit(View2D *v2d, short type, int winx, int winy)
 			/* we don't do anything here, as settings should be fine, but just make sure that rect */
 			break;
 	}
-	
+
 	/* set initialized flag so that View2D doesn't get reinitialised next time again */
 	v2d->flag |= V2D_IS_INITIALISED;
 
 	/* store view size */
 	v2d->winx = winx;
 	v2d->winy = winy;
-	
+
 	/* set masks (always do), but leave scroller scheck to totrect_set */
 	view2d_masks(v2d, 0);
-	
+
 	if (do_init) {
 		/* Visible by default. */
 		v2d->alpha_hor = v2d->alpha_vert = 255;
 	}
-	
+
 	/* set 'tot' rect before setting cur? */
 	/* XXX confusing stuff here still - I made this function not check scroller hide - that happens in totrect_set */
 	if (tot_changed)
 		UI_view2d_totRect_set_resize(v2d, winx, winy, !do_init);
 	else
 		ui_view2d_curRect_validate_resize(v2d, !do_init, 0);
-	
+
 }
 
 /**
@@ -382,16 +382,16 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 	float totwidth, totheight, curwidth, curheight, width, height;
 	float winx, winy;
 	rctf *cur, *tot;
-	
+
 	/* use mask as size of region that View2D resides in, as it takes into account
 	 * scrollbars already - keep in sync with zoomx/zoomy in view_zoomstep_apply_ex! */
 	winx = (float)(BLI_rcti_size_x(&v2d->mask) + 1);
 	winy = (float)(BLI_rcti_size_y(&v2d->mask) + 1);
-	
+
 	/* get pointers to rcts for less typing */
 	cur = &v2d->cur;
 	tot = &v2d->tot;
-	
+
 	/* we must satisfy the following constraints (in decreasing order of importance):
 	 *	- alignment restrictions are respected
 	 *	- cur must not fall outside of tot
@@ -399,7 +399,7 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 	 *	- zoom must not be excessive (check either sizes or zoom values)
 	 *	- aspect ratio should be respected (NOTE: this is quite closely related to zoom too)
 	 */
-	
+
 	/* Step 1: if keepzoom, adjust the sizes of the rects only
 	 *	- firstly, we calculate the sizes of the rects
 	 *	- curwidth and curheight are saved as reference... modify width and height values here
@@ -409,14 +409,14 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 	/* keep in sync with zoomx/zoomy in view_zoomstep_apply_ex! */
 	curwidth  = width  = BLI_rctf_size_x(cur);
 	curheight = height = BLI_rctf_size_y(cur);
-	
+
 	/* if zoom is locked, size on the appropriate axis is reset to mask size */
 	if (v2d->keepzoom & V2D_LOCKZOOM_X)
 		width = winx;
 	if (v2d->keepzoom & V2D_LOCKZOOM_Y)
 		height = winy;
-		
-	/* values used to divide, so make it safe 
+
+	/* values used to divide, so make it safe
 	 * NOTE: width and height must use FLT_MIN instead of 1, otherwise it is impossible to
 	 *       get enough resolution in Graph Editor for editing some curves
 	 */
@@ -424,7 +424,7 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 	if (height < FLT_MIN) height = 1;
 	if (winx < 1) winx = 1;
 	if (winy < 1) winy = 1;
-	
+
 	/* V2D_LIMITZOOM indicates that zoom level should be preserved when the window size changes */
 	if (resize && (v2d->keepzoom & V2D_KEEPZOOM)) {
 		float zoom, oldzoom;
@@ -445,11 +445,11 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 				height *= zoom / oldzoom;
 		}
 	}
-	/* keepzoom (V2D_LIMITZOOM set), indicates that zoom level on each axis must not exceed limits 
+	/* keepzoom (V2D_LIMITZOOM set), indicates that zoom level on each axis must not exceed limits
 	 * NOTE: in general, it is not expected that the lock-zoom will be used in conjunction with this
 	 */
 	else if (v2d->keepzoom & V2D_LIMITZOOM) {
-		
+
 		/* check if excessive zoom on x-axis */
 		if ((v2d->keepzoom & V2D_LOCKZOOM_X) == 0) {
 			const float zoom = winx / width;
@@ -460,7 +460,7 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 				width = winx / v2d->maxzoom;
 			}
 		}
-		
+
 		/* check if excessive zoom on y-axis */
 		if ((v2d->keepzoom & V2D_LOCKZOOM_Y) == 0) {
 			const float zoom = winy / height;
@@ -477,21 +477,21 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 		CLAMP(width, v2d->min[0], v2d->max[0]);
 		CLAMP(height, v2d->min[1], v2d->max[1]);
 	}
-	
+
 	/* check if we should restore aspect ratio (if view size changed) */
 	if (v2d->keepzoom & V2D_KEEPASPECT) {
 		bool do_x = false, do_y = false, do_cur /* , do_win */ /* UNUSED */;
 		float curRatio, winRatio;
-		
+
 		/* when a window edge changes, the aspect ratio can't be used to
-		 * find which is the best new 'cur' rect. thats why it stores 'old' 
+		 * find which is the best new 'cur' rect. thats why it stores 'old'
 		 */
 		if (winx != v2d->oldwinx) do_x = true;
 		if (winy != v2d->oldwiny) do_y = true;
-		
+
 		curRatio = height / width;
 		winRatio = winy / winx;
-		
+
 		/* both sizes change (area/region maximized)  */
 		if (do_x == do_y) {
 			if (do_x && do_y) {
@@ -508,7 +508,7 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 		}
 		do_cur = do_x;
 		/* do_win = do_y; */ /* UNUSED */
-		
+
 		if (do_cur) {
 			if ((v2d->keeptot == V2D_KEEPTOT_STRICT) && (winx != v2d->oldwinx)) {
 				/* special exception for Outliner (and later channel-lists):
@@ -518,12 +518,12 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 				 */
 				if (winx < v2d->oldwinx) {
 					float temp = v2d->oldwinx - winx;
-					
+
 					cur->xmin -= temp;
 					cur->xmax -= temp;
-					
-					/* width does not get modified, as keepaspect here is just set to make 
-					 * sure visible area adjusts to changing view shape! 
+
+					/* width does not get modified, as keepaspect here is just set to make
+					 * sure visible area adjusts to changing view shape!
 					 */
 				}
 			}
@@ -540,7 +540,7 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 
 				if (winy < v2d->oldwiny) {
 					float temp = v2d->oldwiny - winy;
-					
+
 					if (v2d->align & V2D_ALIGN_NO_NEG_Y) {
 						cur->ymin -= temp;
 						cur->ymax -= temp;
@@ -557,16 +557,16 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 				height = width * winRatio;
 			}
 		}
-		
+
 		/* store region size for next time */
 		v2d->oldwinx = (short)winx;
 		v2d->oldwiny = (short)winy;
 	}
-	
+
 	/* Step 2: apply new sizes to cur rect, but need to take into account alignment settings here... */
 	if ((width != curwidth) || (height != curheight)) {
 		float temp, dh;
-		
+
 		/* resize from centerpoint, unless otherwise specified */
 		if (width != curwidth) {
 			if (v2d->keepofs & V2D_LOCKOFS_X) {
@@ -581,7 +581,7 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 			else {
 				temp = BLI_rctf_cent_x(cur);
 				dh = width * 0.5f;
-				
+
 				cur->xmin = temp - dh;
 				cur->xmax = temp + dh;
 			}
@@ -599,21 +599,21 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 			else {
 				temp = BLI_rctf_cent_y(cur);
 				dh = height * 0.5f;
-				
+
 				cur->ymin = temp - dh;
 				cur->ymax = temp + dh;
 			}
 		}
 	}
-	
+
 	/* Step 3: adjust so that it doesn't fall outside of bounds of 'tot' */
 	if (v2d->keeptot) {
 		float temp, diff;
-		
+
 		/* recalculate extents of cur */
 		curwidth  = BLI_rctf_size_x(cur);
 		curheight = BLI_rctf_size_y(cur);
-		
+
 		/* width */
 		if ((curwidth > totwidth) && !(v2d->keepzoom & (V2D_KEEPZOOM | V2D_LOCKZOOM_X | V2D_LIMITZOOM))) {
 			/* if zoom doesn't have to be maintained, just clamp edges */
@@ -621,28 +621,28 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 			if (cur->xmax > tot->xmax) cur->xmax = tot->xmax;
 		}
 		else if (v2d->keeptot == V2D_KEEPTOT_STRICT) {
-			/* This is an exception for the outliner (and later channel-lists, headers) 
+			/* This is an exception for the outliner (and later channel-lists, headers)
 			 *	- must clamp within tot rect (absolutely no excuses)
 			 *	--> therefore, cur->xmin must not be less than tot->xmin
 			 */
 			if (cur->xmin < tot->xmin) {
 				/* move cur across so that it sits at minimum of tot */
 				temp = tot->xmin - cur->xmin;
-				
+
 				cur->xmin += temp;
 				cur->xmax += temp;
 			}
 			else if (cur->xmax > tot->xmax) {
-				/* - only offset by difference of cur-xmax and tot-xmax if that would not move 
+				/* - only offset by difference of cur-xmax and tot-xmax if that would not move
 				 *  cur-xmin to lie past tot-xmin
 				 * - otherwise, simply shift to tot-xmin???
 				 */
 				temp = cur->xmax - tot->xmax;
-				
+
 				if ((cur->xmin - temp) < tot->xmin) {
 					/* only offset by difference from cur-min and tot-min */
 					temp = cur->xmin - tot->xmin;
-					
+
 					cur->xmin -= temp;
 					cur->xmax -= temp;
 				}
@@ -656,7 +656,7 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 			/* This here occurs when:
 			 *  - width too big, but maintaining zoom (i.e. widths cannot be changed)
 			 *	- width is OK, but need to check if outside of boundaries
-			 * 
+			 *
 			 * So, resolution is to just shift view by the gap between the extremities.
 			 * We favour moving the 'minimum' across, as that's origin for most things
 			 * (XXX - in the past, max was favored... if there are bugs, swap!)
@@ -665,28 +665,28 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 				/* outside boundaries on both sides, so take middle-point of tot, and place in balanced way */
 				temp = BLI_rctf_cent_x(tot);
 				diff = curwidth * 0.5f;
-				
+
 				cur->xmin = temp - diff;
 				cur->xmax = temp + diff;
 			}
 			else if (cur->xmin < tot->xmin) {
 				/* move cur across so that it sits at minimum of tot */
 				temp = tot->xmin - cur->xmin;
-				
+
 				cur->xmin += temp;
 				cur->xmax += temp;
 			}
 			else if (cur->xmax > tot->xmax) {
-				/* - only offset by difference of cur-xmax and tot-xmax if that would not move 
+				/* - only offset by difference of cur-xmax and tot-xmax if that would not move
 				 *  cur-xmin to lie past tot-xmin
 				 * - otherwise, simply shift to tot-xmin???
 				 */
 				temp = cur->xmax - tot->xmax;
-				
+
 				if ((cur->xmin - temp) < tot->xmin) {
 					/* only offset by difference from cur-min and tot-min */
 					temp = cur->xmin - tot->xmin;
-					
+
 					cur->xmin -= temp;
 					cur->xmax -= temp;
 				}
@@ -696,7 +696,7 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 				}
 			}
 		}
-		
+
 		/* height */
 		if ((curheight > totheight) && !(v2d->keepzoom & (V2D_KEEPZOOM | V2D_LOCKZOOM_Y | V2D_LIMITZOOM))) {
 			/* if zoom doesn't have to be maintained, just clamp edges */
@@ -707,7 +707,7 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 			/* This here occurs when:
 			 *  - height too big, but maintaining zoom (i.e. heights cannot be changed)
 			 *	- height is OK, but need to check if outside of boundaries
-			 * 
+			 *
 			 * So, resolution is to just shift view by the gap between the extremities.
 			 * We favour moving the 'minimum' across, as that's origin for most things
 			 */
@@ -715,37 +715,37 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 				/* outside boundaries on both sides, so take middle-point of tot, and place in balanced way */
 				temp = BLI_rctf_cent_y(tot);
 				diff = curheight * 0.5f;
-				
+
 				cur->ymin = temp - diff;
 				cur->ymax = temp + diff;
 			}
 			else if (cur->ymin < tot->ymin) {
 				/* there's still space remaining, so shift up */
 				temp = tot->ymin - cur->ymin;
-				
+
 				cur->ymin += temp;
 				cur->ymax += temp;
 			}
 			else if (cur->ymax > tot->ymax) {
 				/* there's still space remaining, so shift down */
 				temp = cur->ymax - tot->ymax;
-				
+
 				cur->ymin -= temp;
 				cur->ymax -= temp;
 			}
 		}
 	}
-	
+
 	/* Step 4: Make sure alignment restrictions are respected */
 	if (v2d->align) {
 		/* If alignment flags are set (but keeptot is not), they must still be respected, as although
-		 * they don't specify any particular bounds to stay within, they do define ranges which are 
+		 * they don't specify any particular bounds to stay within, they do define ranges which are
 		 * invalid.
 		 *
-		 * Here, we only check to make sure that on each axis, the 'cur' rect doesn't stray into these 
+		 * Here, we only check to make sure that on each axis, the 'cur' rect doesn't stray into these
 		 * invalid zones, otherwise we offset.
 		 */
-		
+
 		/* handle width - posx and negx flags are mutually exclusive, so watch out */
 		if ((v2d->align & V2D_ALIGN_NO_POS_X) && !(v2d->align & V2D_ALIGN_NO_NEG_X)) {
 			/* width is in negative-x half */
@@ -761,7 +761,7 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 				v2d->cur.xmin = 0.0f;
 			}
 		}
-		
+
 		/* handle height - posx and negx flags are mutually exclusive, so watch out */
 		if ((v2d->align & V2D_ALIGN_NO_POS_Y) && !(v2d->align & V2D_ALIGN_NO_NEG_Y)) {
 			/* height is in negative-y half */
@@ -778,7 +778,7 @@ static void ui_view2d_curRect_validate_resize(View2D *v2d, bool resize, bool mas
 			}
 		}
 	}
-	
+
 	/* set masks */
 	view2d_masks(v2d, mask_scrollers);
 }
@@ -795,11 +795,11 @@ void UI_view2d_sync(bScreen *screen, ScrArea *area, View2D *v2dcur, int flag)
 {
 	ScrArea *sa;
 	ARegion *ar;
-	
+
 	/* don't continue if no view syncing to be done */
 	if ((v2dcur->flag & (V2D_VIEWSYNC_SCREEN_TIME | V2D_VIEWSYNC_AREA_VERTICAL)) == 0)
 		return;
-		
+
 	/* check if doing within area syncing (i.e. channels/vertical) */
 	if ((v2dcur->flag & V2D_VIEWSYNC_AREA_VERTICAL) && (area)) {
 		for (ar = area->regionbase.first; ar; ar = ar->next) {
@@ -817,14 +817,14 @@ void UI_view2d_sync(bScreen *screen, ScrArea *area, View2D *v2dcur, int flag)
 						v2dcur->cur.ymin = ar->v2d.cur.ymin;
 						v2dcur->cur.ymax = ar->v2d.cur.ymax;
 					}
-					
+
 					/* region possibly changed, so refresh */
 					ED_region_tag_redraw_no_rebuild(ar);
 				}
 			}
 		}
 	}
-	
+
 	/* check if doing whole screen syncing (i.e. time/horizontal) */
 	if ((v2dcur->flag & V2D_VIEWSYNC_SCREEN_TIME) && (screen)) {
 		for (sa = screen->areabase.first; sa; sa = sa->next) {
@@ -843,7 +843,7 @@ void UI_view2d_sync(bScreen *screen, ScrArea *area, View2D *v2dcur, int flag)
 							v2dcur->cur.xmin = ar->v2d.cur.xmin;
 							v2dcur->cur.xmax = ar->v2d.cur.xmax;
 						}
-						
+
 						/* region possibly changed, so refresh */
 						ED_region_tag_redraw_no_rebuild(ar);
 					}
@@ -861,11 +861,11 @@ void UI_view2d_sync(bScreen *screen, ScrArea *area, View2D *v2dcur, int flag)
 void UI_view2d_curRect_reset(View2D *v2d)
 {
 	float width, height;
-	
+
 	/* assume width and height of 'cur' rect by default, should be same size as mask */
 	width  = (float)(BLI_rcti_size_x(&v2d->mask) + 1);
 	height = (float)(BLI_rcti_size_y(&v2d->mask) + 1);
-	
+
 	/* handle width - posx and negx flags are mutually exclusive, so watch out */
 	if ((v2d->align & V2D_ALIGN_NO_POS_X) && !(v2d->align & V2D_ALIGN_NO_NEG_X)) {
 		/* width is in negative-x half */
@@ -880,11 +880,11 @@ void UI_view2d_curRect_reset(View2D *v2d)
 	else {
 		/* width is centered around (x == 0) */
 		const float dx = width / 2.0f;
-		
+
 		v2d->cur.xmin = -dx;
 		v2d->cur.xmax = dx;
 	}
-	
+
 	/* handle height - posx and negx flags are mutually exclusive, so watch out */
 	if ((v2d->align & V2D_ALIGN_NO_POS_Y) && !(v2d->align & V2D_ALIGN_NO_NEG_Y)) {
 		/* height is in negative-y half */
@@ -899,7 +899,7 @@ void UI_view2d_curRect_reset(View2D *v2d)
 	else {
 		/* height is centered around (y == 0) */
 		const float dy = height / 2.0f;
-		
+
 		v2d->cur.ymin = -dy;
 		v2d->cur.ymax = dy;
 	}
@@ -911,11 +911,11 @@ void UI_view2d_curRect_reset(View2D *v2d)
 void UI_view2d_totRect_set_resize(View2D *v2d, int width, int height, bool resize)
 {
 //	int scroll = view2d_scroll_mapped(v2d->scroll);
-	
+
 	/* don't do anything if either value is 0 */
 	width = abs(width);
 	height = abs(height);
-	
+
 	/* hrumf! */
 	/* XXX: there are work arounds for this in the panel and file browse code. */
 	/* round to int, because this is called with width + V2D_SCROLL_WIDTH */
@@ -923,13 +923,13 @@ void UI_view2d_totRect_set_resize(View2D *v2d, int width, int height, bool resiz
 //		width -= (int)V2D_SCROLL_WIDTH;
 //	if (scroll & V2D_SCROLL_VERTICAL)
 //		height -= (int)V2D_SCROLL_HEIGHT;
-	
+
 	if (ELEM(0, width, height)) {
 		if (G.debug & G_DEBUG)
 			printf("Error: View2D totRect set exiting: v2d=%p width=%d height=%d\n", (void *)v2d, width, height);  // XXX temp debug info
 		return;
 	}
-	
+
 	/* handle width - posx and negx flags are mutually exclusive, so watch out */
 	if ((v2d->align & V2D_ALIGN_NO_POS_X) && !(v2d->align & V2D_ALIGN_NO_NEG_X)) {
 		/* width is in negative-x half */
@@ -944,11 +944,11 @@ void UI_view2d_totRect_set_resize(View2D *v2d, int width, int height, bool resiz
 	else {
 		/* width is centered around (x == 0) */
 		const float dx = (float)width / 2.0f;
-		
+
 		v2d->tot.xmin = -dx;
 		v2d->tot.xmax = dx;
 	}
-	
+
 	/* handle height - posx and negx flags are mutually exclusive, so watch out */
 	if ((v2d->align & V2D_ALIGN_NO_POS_Y) && !(v2d->align & V2D_ALIGN_NO_NEG_Y)) {
 		/* height is in negative-y half */
@@ -963,14 +963,14 @@ void UI_view2d_totRect_set_resize(View2D *v2d, int width, int height, bool resiz
 	else {
 		/* height is centered around (y == 0) */
 		const float dy = (float)height / 2.0f;
-		
+
 		v2d->tot.ymin = -dy;
 		v2d->tot.ymax = dy;
 	}
-	
+
 	/* make sure that 'cur' rect is in a valid state as a result of these changes */
 	ui_view2d_curRect_validate_resize(v2d, resize, 1);
-	
+
 }
 
 void UI_view2d_totRect_set(View2D *v2d, int width, int height)
@@ -978,12 +978,12 @@ void UI_view2d_totRect_set(View2D *v2d, int width, int height)
 	int scroll = view2d_scroll_mapped(v2d->scroll);
 
 	UI_view2d_totRect_set_resize(v2d, width, height, 0);
-	
+
 	/* solve bad recursion... if scroller state changed, mask is different, so you get different rects */
 	if (scroll != view2d_scroll_mapped(v2d->scroll)) {
 		UI_view2d_totRect_set_resize(v2d, width, height, 0);
 	}
-	
+
 }
 
 bool UI_view2d_tab_set(View2D *v2d, int tab)
@@ -1054,21 +1054,21 @@ void UI_view2d_zoom_cache_reset(void)
 static void view2d_map_cur_using_mask(View2D *v2d, rctf *curmasked)
 {
 	*curmasked = v2d->cur;
-	
+
 	if (view2d_scroll_mapped(v2d->scroll)) {
 		float sizex = BLI_rcti_size_x(&v2d->mask);
 		float sizey = BLI_rcti_size_y(&v2d->mask);
-		
+
 		/* prevent tiny or narrow regions to get invalid coordinates - mask can get negative even... */
 		if (sizex > 0.0f && sizey > 0.0f) {
 			float dx = BLI_rctf_size_x(&v2d->cur) / (sizex + 1);
 			float dy = BLI_rctf_size_y(&v2d->cur) / (sizey + 1);
-			
+
 			if (v2d->mask.xmin != 0)
 				curmasked->xmin -= dx * (float)v2d->mask.xmin;
 			if (v2d->mask.xmax + 1 != v2d->winx)
 				curmasked->xmax += dx * (float)(v2d->winx - v2d->mask.xmax - 1);
-			
+
 			if (v2d->mask.ymin != 0)
 				curmasked->ymin -= dy * (float)v2d->mask.ymin;
 			if (v2d->mask.ymax + 1 != v2d->winy)
@@ -1085,7 +1085,7 @@ void UI_view2d_view_ortho(View2D *v2d)
 	const int sizey = BLI_rcti_size_y(&v2d->mask);
 	const float eps = 0.001f;
 	float xofs = 0.0f, yofs = 0.0f;
-	
+
 	/* pixel offsets (-GLA_PIXEL_OFS) are needed to get 1:1 correspondence with pixels for smooth UI drawing,
 	 * but only applied where requested
 	 */
@@ -1095,12 +1095,12 @@ void UI_view2d_view_ortho(View2D *v2d)
 		xofs = eps * BLI_rctf_size_x(&v2d->cur) / sizex;
 	if (sizey > 0)
 		yofs = eps * BLI_rctf_size_y(&v2d->cur) / sizey;
-	
+
 	/* apply mask-based adjustments to cur rect (due to scrollers), to eliminate scaling artifacts */
 	view2d_map_cur_using_mask(v2d, &curmasked);
 
 	BLI_rctf_translate(&curmasked, -xofs, -yofs);
-	
+
 	/* XXX ton: this flag set by outliner, for icons */
 	if (v2d->flag & V2D_PIXELOFS_X) {
 		curmasked.xmin = floorf(curmasked.xmin) - (eps + xofs);
@@ -1110,7 +1110,7 @@ void UI_view2d_view_ortho(View2D *v2d)
 		curmasked.ymin = floorf(curmasked.ymin) - (eps + yofs);
 		curmasked.ymax = floorf(curmasked.ymax) - (eps + yofs);
 	}
-	
+
 	/* set matrix on all appropriate axes */
 	wmOrtho2(curmasked.xmin, curmasked.xmax, curmasked.ymin, curmasked.ymax);
 }
@@ -1124,23 +1124,23 @@ void UI_view2d_view_orthoSpecial(ARegion *ar, View2D *v2d, const bool xaxis)
 {
 	rctf curmasked;
 	float xofs, yofs;
-	
+
 	/* pixel offsets (-GLA_PIXEL_OFS) are needed to get 1:1 correspondence with pixels for smooth UI drawing,
 	 * but only applied where requested
 	 */
 	/* XXX temp (ton) */
 	xofs = 0.0f; // (v2d->flag & V2D_PIXELOFS_X) ? GLA_PIXEL_OFS : 0.0f;
 	yofs = 0.0f; // (v2d->flag & V2D_PIXELOFS_Y) ? GLA_PIXEL_OFS : 0.0f;
-	
+
 	/* apply mask-based adjustments to cur rect (due to scrollers), to eliminate scaling artifacts */
 	view2d_map_cur_using_mask(v2d, &curmasked);
-	
+
 	/* only set matrix with 'cur' coordinates on relevant axes */
 	if (xaxis)
 		wmOrtho2(curmasked.xmin - xofs, curmasked.xmax - xofs, -yofs, ar->winy - yofs);
 	else
 		wmOrtho2(-xofs, ar->winx - xofs, curmasked.ymin - yofs, curmasked.ymax - yofs);
-} 
+}
 
 
 /* Restore view matrices after drawing */
@@ -1149,10 +1149,10 @@ void UI_view2d_view_restore(const bContext *C)
 	ARegion *ar = CTX_wm_region(C);
 	int width  = BLI_rcti_size_x(&ar->winrct) + 1;
 	int height = BLI_rcti_size_y(&ar->winrct) + 1;
-	
+
 	wmOrtho2(0.0f, (float)width, 0.0f, (float)height);
 	gpuLoadIdentity();
-	
+
 	//	ED_region_pixelspace(CTX_wm_region(C));
 }
 
@@ -1173,25 +1173,25 @@ static void step_to_grid(float *step, int *power, int unit)
 {
 	const float loga = (float)log10(*step);
 	float rem;
-	
+
 	*power = (int)(loga);
-	
+
 	rem = loga - (*power);
 	rem = (float)pow(10.0, rem);
-	
+
 	if (loga < 0.0f) {
 		if (rem < 0.2f) rem = 0.2f;
 		else if (rem < 0.5f) rem = 0.5f;
 		else rem = 1.0f;
-		
+
 		*step = rem * (float)pow(10.0, (*power));
-		
+
 		/* for frames, we want 1.0 frame intervals only */
 		if (unit == V2D_UNIT_FRAMES) {
 			rem = 1.0f;
 			*step = 2.0f; /* use 2 since there are grid lines drawn in between, this way to get 1 line per frane */
 		}
-		
+
 		/* prevents printing 1.0 2.0 3.0 etc */
 		if (rem == 1.0f) (*power)++;
 	}
@@ -1199,9 +1199,9 @@ static void step_to_grid(float *step, int *power, int unit)
 		if (rem < 2.0f) rem = 2.0f;
 		else if (rem < 5.0f) rem = 5.0f;
 		else rem = 10.0f;
-		
+
 		*step = rem * (float)pow(10.0, (*power));
-		
+
 		(*power)++;
 		/* prevents printing 1.0, 2.0, 3.0, etc. */
 		if (rem == 10.0f) (*power)++;
@@ -1229,14 +1229,14 @@ View2DGrid *UI_view2d_grid_calc(
 
 	View2DGrid *grid;
 	float space, seconddiv;
-	
+
 	/* check that there are at least some workable args */
 	if (ELEM(V2D_ARG_DUMMY, xunits, xclamp) && ELEM(V2D_ARG_DUMMY, yunits, yclamp))
 		return NULL;
-	
+
 	/* grid here is allocated... */
 	grid = MEM_callocN(sizeof(View2DGrid), "View2DGrid");
-	
+
 	/* rule: gridstep is minimal GRIDSTEP pixels */
 	if (xunits == V2D_UNIT_SECONDS) {
 		seconddiv = (float)(0.01 * FPS);
@@ -1244,7 +1244,7 @@ View2DGrid *UI_view2d_grid_calc(
 	else {
 		seconddiv = 1.0f;
 	}
-	
+
 	/* calculate x-axis grid scale (only if both args are valid) */
 	if (ELEM(V2D_ARG_DUMMY, xunits, xclamp) == 0) {
 		space = BLI_rctf_size_x(&v2d->cur);
@@ -1257,14 +1257,14 @@ View2DGrid *UI_view2d_grid_calc(
 				grid->dx *= seconddiv;
 			}
 		}
-		
+
 		if (xclamp == V2D_GRID_CLAMP) {
 			CLAMP_MIN(grid->dx, 0.1f);
 			CLAMP_MIN(grid->powerx, 0);
 			grid->powerx -= 2;
 		}
 	}
-	
+
 	/* calculate y-axis grid scale (only if both args are valid) */
 	if (ELEM(V2D_ARG_DUMMY, yunits, yclamp) == 0) {
 		space = BLI_rctf_size_y(&v2d->cur);
@@ -1281,7 +1281,7 @@ View2DGrid *UI_view2d_grid_calc(
 			CLAMP_MIN(grid->powery, 1);
 		}
 	}
-	
+
 	/* calculate start position */
 	if (ELEM(V2D_ARG_DUMMY, xunits, xclamp) == 0) {
 		grid->startx = seconddiv * (v2d->cur.xmin / seconddiv - (float)fmod(v2d->cur.xmin / seconddiv, grid->dx / seconddiv));
@@ -1289,14 +1289,14 @@ View2DGrid *UI_view2d_grid_calc(
 	}
 	else
 		grid->startx = v2d->cur.xmin;
-		
+
 	if (ELEM(V2D_ARG_DUMMY, yunits, yclamp) == 0) {
 		grid->starty = (v2d->cur.ymin - (float)fmod(v2d->cur.ymin, grid->dy));
 		if (v2d->cur.ymin < 0.0f) grid->starty -= grid->dy;
 	}
 	else
 		grid->starty = v2d->cur.ymin;
-	
+
 	return grid;
 }
 
@@ -1308,7 +1308,7 @@ void UI_view2d_grid_draw(View2D *v2d, View2DGrid *grid, int flag)
 	int vertical_minor_step = (BLI_rcti_size_x(&v2d->mask) + 1) / (U.v2d_min_gridsize * UI_DPI_FAC),
 		horizontal_major_step = (BLI_rcti_size_y(&v2d->mask) + 1) / (U.v2d_min_gridsize * UI_DPI_FAC);
 	unsigned char grid_line_color[3];
-	
+
 	/* check for grid first, as it may not exist */
 	if (grid == NULL)
 		return;
@@ -1351,47 +1351,47 @@ void UI_view2d_grid_draw(View2D *v2d, View2DGrid *grid, int flag)
 		vec1[0] = vec2[0] = grid->startx;
 		vec1[1] = grid->starty;
 		vec2[1] = v2d->cur.ymax;
-		
+
 		/* minor gridlines */
 		step = vertical_minor_step;
 		if (step != 0) {
 			UI_GetThemeColor3ubv(TH_GRID, grid_line_color);
-	
+
 			for (a = 0; a < step; a++) {
 				immSkipAttrib(color);
 				immVertex2fv(pos, vec1);
 				immAttrib3ubv(color, grid_line_color);
 				immVertex2fv(pos, vec2);
-				
+
 				vec2[0] = vec1[0] += grid->dx;
 			}
 		}
-		
+
 		/* major gridlines */
 		vec2[0] = vec1[0] -= 0.5f * grid->dx;
 
 		UI_GetThemeColorShade3ubv(TH_GRID, 16, grid_line_color);
-		
+
 		step++;
 		for (a = 0; a <= step; a++) {
 			immSkipAttrib(color);
 			immVertex2fv(pos, vec1);
 			immAttrib3ubv(color, grid_line_color);
 			immVertex2fv(pos, vec2);
-			
+
 			vec2[0] = vec1[0] -= grid->dx;
 		}
 	}
-	
+
 	/* horizontal lines */
 	if (flag & V2D_HORIZONTAL_LINES) {
 		/* only major gridlines */
 		vec1[1] = vec2[1] = grid->starty;
 		vec1[0] = grid->startx;
 		vec2[0] = v2d->cur.xmax;
-		
+
 		step = horizontal_major_step;
-	
+
 		UI_GetThemeColor3ubv(TH_GRID, grid_line_color);
 
 		for (a = 0; a <= step; a++) {
@@ -1399,14 +1399,14 @@ void UI_view2d_grid_draw(View2D *v2d, View2DGrid *grid, int flag)
 			immVertex2fv(pos, vec1);
 			immAttrib3ubv(color, grid_line_color);
 			immVertex2fv(pos, vec2);
-			
+
 			vec2[1] = vec1[1] += grid->dy;
 		}
-		
+
 		/* fine grid lines */
 		vec2[1] = vec1[1] -= 0.5f * grid->dy;
 		step++;
-		
+
 		if (flag & V2D_HORIZONTAL_FINELINES) {
 			UI_GetThemeColorShade3ubv(TH_GRID, 16, grid_line_color);
 			for (a = 0; a < step; a++) {
@@ -1414,33 +1414,33 @@ void UI_view2d_grid_draw(View2D *v2d, View2DGrid *grid, int flag)
 				immVertex2fv(pos, vec1);
 				immAttrib3ubv(color, grid_line_color);
 				immVertex2fv(pos, vec2);
-				
+
 				vec2[1] = vec1[1] -= grid->dy;
 			}
 		}
 	}
-	
+
 	/* Axes are drawn as darker lines */
 	UI_GetThemeColorShade3ubv(TH_GRID, -50, grid_line_color);
-	
+
 	/* horizontal axis */
 	if (flag & V2D_HORIZONTAL_AXIS) {
 		vec1[0] = v2d->cur.xmin;
 		vec2[0] = v2d->cur.xmax;
 		vec1[1] = vec2[1] = 0.0f;
-		
+
 		immSkipAttrib(color);
 		immVertex2fv(pos, vec1);
 		immAttrib3ubv(color, grid_line_color);
 		immVertex2fv(pos, vec2);
 	}
-	
+
 	/* vertical axis */
 	if (flag & V2D_VERTICAL_AXIS) {
 		vec1[1] = v2d->cur.ymin;
 		vec2[1] = v2d->cur.ymax;
 		vec1[0] = vec2[0] = 0.0f;
-		
+
 		immSkipAttrib(color);
 		immVertex2fv(pos, vec1);
 		immAttrib3ubv(color, grid_line_color);
@@ -1456,7 +1456,7 @@ void UI_view2d_constant_grid_draw(View2D *v2d, float step)
 {
 	float start_x, start_y;
 	int count_x, count_y;
-	
+
 	start_x = v2d->cur.xmin;
 	if (start_x < 0.0)
 		start_x += -(float)fmod(v2d->cur.xmin, step);
@@ -1478,7 +1478,7 @@ void UI_view2d_constant_grid_draw(View2D *v2d, float step)
 		count_y = 0;
 	else
 		count_y = (v2d->cur.ymax - start_y) / step + 1;
-	
+
 	if (count_x > 0 || count_y > 0) {
 		Gwn_VertFormat *format = immVertexFormat();
 		unsigned int pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
@@ -1486,10 +1486,10 @@ void UI_view2d_constant_grid_draw(View2D *v2d, float step)
 		float theme_color[3];
 
 		UI_GetThemeColorShade3fv(TH_BACK, -10, theme_color);
-		
+
 		immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR);
 		immBegin(GWN_PRIM_LINES, count_x * 2 + count_y * 2 + 4);
-		
+
 		immAttrib3fv(color, theme_color);
 		for (int i = 0; i < count_x ; start_x += step, i++) {
 			immVertex2f(pos, start_x, v2d->cur.ymin);
@@ -1500,16 +1500,16 @@ void UI_view2d_constant_grid_draw(View2D *v2d, float step)
 			immVertex2f(pos, v2d->cur.xmin, start_y);
 			immVertex2f(pos, v2d->cur.xmax, start_y);
 		}
-	
+
 		/* X and Y axis */
 		UI_GetThemeColorShade3fv(TH_BACK, -18, theme_color);
-		
+
 		immAttrib3fv(color, theme_color);
 		immVertex2f(pos, 0.0f, v2d->cur.ymin);
 		immVertex2f(pos, 0.0f, v2d->cur.ymax);
 		immVertex2f(pos, v2d->cur.xmin, 0.0f);
 		immVertex2f(pos, v2d->cur.xmax, 0.0f);
-	
+
 		immEnd();
 		immUnbindProgram();
 	}
@@ -1542,12 +1542,12 @@ void UI_view2d_multi_grid_draw(View2D *v2d, int colorid, float step, int level_s
 
 	for (int level = 0; level < totlevels; ++level) {
 		UI_GetThemeColorShade3ubv(colorid, offset, grid_line_color);
-		
+
 		int i = (int)(v2d->cur.xmin / lstep);
 		if (v2d->cur.xmin > 0.0f)
 			i++;
 		float start = i * lstep;
-		
+
 		for (; start < v2d->cur.xmax; start += lstep, ++i) {
 			if (i == 0 || (level < totlevels - 1 && i % level_size == 0))
 				continue;
@@ -1557,12 +1557,12 @@ void UI_view2d_multi_grid_draw(View2D *v2d, int colorid, float step, int level_s
 			immAttrib3ubv(color, grid_line_color);
 			immVertex2f(pos, start, v2d->cur.ymax);
 		}
-		
+
 		i = (int)(v2d->cur.ymin / lstep);
 		if (v2d->cur.ymin > 0.0f)
 			i++;
 		start = i * lstep;
-		
+
 		for (; start < v2d->cur.ymax; start += lstep, ++i) {
 			if (i == 0 || (level < totlevels - 1 && i % level_size == 0))
 				continue;
@@ -1572,7 +1572,7 @@ void UI_view2d_multi_grid_draw(View2D *v2d, int colorid, float step, int level_s
 			immAttrib3ubv(color, grid_line_color);
 			immVertex2f(pos, v2d->cur.xmax, start);
 		}
-		
+
 		lstep *= level_size;
 		offset -= 6;
 	}
@@ -1623,10 +1623,10 @@ struct View2DScrollers {
 	/* focus bubbles */
 	int vert_min, vert_max; /* vertical scrollbar */
 	int hor_min, hor_max;   /* horizontal scrollbar */
-	
+
 	rcti hor, vert;         /* exact size of slider backdrop */
 	int horfull, vertfull;  /* set if sliders are full, we don't draw them */
-	
+
 	/* scales */
 	View2DGrid *grid;       /* grid for coordinate drawing */
 	short xunits, xclamp;   /* units and clamping options for x-axis */
@@ -1643,16 +1643,16 @@ View2DScrollers *UI_view2d_scrollers_calc(
 	float fac1, fac2, totsize, scrollsize;
 	int scroll = view2d_scroll_mapped(v2d->scroll);
 	int smaller;
-	
+
 	/* scrollers is allocated here... */
 	scrollers = MEM_callocN(sizeof(View2DScrollers), "View2DScrollers");
-	
+
 	/* Always update before drawing (for dynamically sized scrollers). */
 	view2d_masks(v2d, false);
-	
+
 	vert = v2d->vert;
 	hor = v2d->hor;
-	
+
 	/* slider rects need to be smaller than region */
 	smaller = (int)(0.1f * U.widget_unit);
 	hor.xmin += smaller;
@@ -1661,26 +1661,26 @@ View2DScrollers *UI_view2d_scrollers_calc(
 		hor.ymin += smaller;
 	else
 		hor.ymax -= smaller;
-	
+
 	if (scroll & V2D_SCROLL_LEFT)
 		vert.xmin += smaller;
 	else
 		vert.xmax -= smaller;
 	vert.ymin += smaller;
 	vert.ymax -= smaller;
-	
+
 	CLAMP(vert.ymin, vert.ymin, vert.ymax - V2D_SCROLLER_HANDLE_SIZE);
 	CLAMP(hor.xmin, hor.xmin, hor.xmax - V2D_SCROLLER_HANDLE_SIZE);
-	
+
 	/* store in scrollers, used for drawing */
 	scrollers->vert = vert;
 	scrollers->hor = hor;
-	
+
 	/* scroller 'buttons':
 	 *	- These should always remain within the visible region of the scrollbar
 	 *	- They represent the region of 'tot' that is visible in 'cur'
 	 */
-	
+
 	/* horizontal scrollers */
 	if (scroll & V2D_SCROLL_HORIZONTAL) {
 		/* scroller 'button' extents */
@@ -1693,15 +1693,15 @@ View2DScrollers *UI_view2d_scrollers_calc(
 			scrollers->hor_min = hor.xmin;
 		else
 			scrollers->hor_min = (int)(hor.xmin + (fac1 * scrollsize));
-		
+
 		fac2 = (v2d->cur.xmax - v2d->tot.xmin) / totsize;
 		if (fac2 >= 1.0f)
 			scrollers->hor_max = hor.xmax;
 		else
 			scrollers->hor_max = (int)(hor.xmin + (fac2 * scrollsize));
-		
+
 		/* prevent inverted sliders */
-		if (scrollers->hor_min > scrollers->hor_max) 
+		if (scrollers->hor_min > scrollers->hor_max)
 			scrollers->hor_min = scrollers->hor_max;
 		/* prevent sliders from being too small, and disappearing */
 		if ((scrollers->hor_max - scrollers->hor_min) < V2D_SCROLLER_HANDLE_SIZE) {
@@ -1710,9 +1710,9 @@ View2DScrollers *UI_view2d_scrollers_calc(
 			CLAMP(scrollers->hor_max, hor.xmin + V2D_SCROLLER_HANDLE_SIZE, hor.xmax);
 			CLAMP(scrollers->hor_min, hor.xmin, hor.xmax - V2D_SCROLLER_HANDLE_SIZE);
 		}
-		
+
 	}
-	
+
 	/* vertical scrollers */
 	if (scroll & V2D_SCROLL_VERTICAL) {
 		/* scroller 'button' extents */
@@ -1725,27 +1725,27 @@ View2DScrollers *UI_view2d_scrollers_calc(
 			scrollers->vert_min = vert.ymin;
 		else
 			scrollers->vert_min = (int)(vert.ymin + (fac1 * scrollsize));
-		
+
 		fac2 = (v2d->cur.ymax - v2d->tot.ymin) / totsize;
 		if (fac2 >= 1.0f)
 			scrollers->vert_max = vert.ymax;
 		else
 			scrollers->vert_max = (int)(vert.ymin + (fac2 * scrollsize));
-		
+
 		/* prevent inverted sliders */
-		if (scrollers->vert_min > scrollers->vert_max) 
+		if (scrollers->vert_min > scrollers->vert_max)
 			scrollers->vert_min = scrollers->vert_max;
 		/* prevent sliders from being too small, and disappearing */
 		if ((scrollers->vert_max - scrollers->vert_min) < V2D_SCROLLER_HANDLE_SIZE) {
-			
+
 			scrollers->vert_max = scrollers->vert_min + V2D_SCROLLER_HANDLE_SIZE;
-			
+
 			CLAMP(scrollers->vert_max, vert.ymin + V2D_SCROLLER_HANDLE_SIZE, vert.ymax);
 			CLAMP(scrollers->vert_min, vert.ymin, vert.ymax - V2D_SCROLLER_HANDLE_SIZE);
 		}
 
 	}
-	
+
 	/* grid markings on scrollbars */
 	if (scroll & (V2D_SCROLL_SCALE_HORIZONTAL | V2D_SCROLL_SCALE_VERTICAL)) {
 		/* store clamping */
@@ -1753,12 +1753,12 @@ View2DScrollers *UI_view2d_scrollers_calc(
 		scrollers->xunits = xunits;
 		scrollers->yclamp = yclamp;
 		scrollers->yunits = yunits;
-		
+
 		scrollers->grid = UI_view2d_grid_calc(CTX_data_scene(C), v2d,
 		                                      xunits, xclamp, yunits, yclamp,
 		                                      BLI_rcti_size_x(&hor), BLI_rcti_size_y(&vert));
 	}
-	
+
 	/* return scrollers */
 	return scrollers;
 }
@@ -1768,11 +1768,11 @@ static void scroll_printstr(Scene *scene, float x, float y, float val, int power
 {
 	int len;
 	char timecode_str[32];
-	
+
 	/* adjust the scale unit to work ok */
 	if (dir == 'v') {
-		/* here we bump up the power by factor of 10, as 
-		 * rotation values (hence 'degrees') are divided by 10 to 
+		/* here we bump up the power by factor of 10, as
+		 * rotation values (hence 'degrees') are divided by 10 to
 		 * be able to show the curves at the same time
 		 */
 		if (ELEM(unit, V2D_UNIT_DEGREES, V2D_UNIT_TIME)) {
@@ -1780,7 +1780,7 @@ static void scroll_printstr(Scene *scene, float x, float y, float val, int power
 			val *= 10;
 		}
 	}
-	
+
 	/* get string to print */
 	if (unit == V2D_UNIT_SECONDS) {
 		/* not neces*/
@@ -1789,7 +1789,7 @@ static void scroll_printstr(Scene *scene, float x, float y, float val, int power
 	else {
 		BLI_timecode_string_from_time_seconds(timecode_str, sizeof(timecode_str), power, val);
 	}
-	
+
 	/* get length of string, and adjust printing location to fit it into the horizontal scrollbar */
 	len = strlen(timecode_str);
 	if (dir == 'h') {
@@ -1799,13 +1799,13 @@ static void scroll_printstr(Scene *scene, float x, float y, float val, int power
 		else
 			x -= 4 * len;
 	}
-	
+
 	/* Add degree sympbol to end of string for vertical scrollbar? */
 	if ((dir == 'v') && (unit == V2D_UNIT_DEGREES)) {
 		timecode_str[len] = 186;
 		timecode_str[len + 1] = 0;
 	}
-	
+
 	/* draw it */
 	BLF_draw_default_ascii(x, y, 0.0f, timecode_str, sizeof(timecode_str));
 }
@@ -1822,35 +1822,35 @@ void UI_view2d_scrollers_draw(const bContext *C, View2D *v2d, View2DScrollers *v
 
 	/* Color for scrollbar backs */
 	UI_GetThemeColor4ubv(TH_BACK, scrollers_back_color);
-	
+
 	/* make copies of rects for less typing */
 	vert = vs->vert;
 	hor = vs->hor;
-	
+
 	/* horizontal scrollbar */
 	if (scroll & V2D_SCROLL_HORIZONTAL) {
 		uiWidgetColors wcol = btheme->tui.wcol_scroll;
 		const float alpha_fac = v2d->alpha_hor / 255.0f;
 		rcti slider;
 		int state;
-		
+
 		slider.xmin = vs->hor_min;
 		slider.xmax = vs->hor_max;
 		slider.ymin = hor.ymin;
 		slider.ymax = hor.ymax;
-		
+
 		state = (v2d->scroll_ui & V2D_SCROLL_H_ACTIVE) ? UI_SCROLL_PRESSED : 0;
-		
+
 		wcol.inner[3]   *= alpha_fac;
 		wcol.item[3]    *= alpha_fac;
 		wcol.outline[3] *= alpha_fac;
 		btheme->tui.widget_emboss[3] *= alpha_fac; /* will be reset later */
-		
+
 		/* show zoom handles if:
 		 *	- zooming on x-axis is allowed (no scroll otherwise)
 		 *	- slider bubble is large enough (no overdraw confusion)
-		 *	- scale is shown on the scroller 
-		 *	  (workaround to make sure that button windows don't show these, 
+		 *	- scale is shown on the scroller
+		 *	  (workaround to make sure that button windows don't show these,
 		 *		and only the time-grids with their zoomability can do so)
 		 */
 		if ((v2d->keepzoom & V2D_LOCKZOOM_X) == 0 &&
@@ -1861,27 +1861,27 @@ void UI_view2d_scrollers_draw(const bContext *C, View2D *v2d, View2DScrollers *v
 		}
 
 		UI_draw_widget_scroll(&wcol, &hor, &slider, state);
-		
+
 		/* scale indicators */
 		if ((scroll & V2D_SCROLL_SCALE_HORIZONTAL) && (vs->grid)) {
 			const int font_id = BLF_default();
 			View2DGrid *grid = vs->grid;
 			float fac, dfac, fac2, val;
-			
-			/* the numbers: convert grid->startx and -dx to scroll coordinates 
+
+			/* the numbers: convert grid->startx and -dx to scroll coordinates
 			 *	- fac is x-coordinate to draw to
 			 *	- dfac is gap between scale markings
 			 */
 			fac = (grid->startx - v2d->cur.xmin) / BLI_rctf_size_x(&v2d->cur);
 			fac = (float)hor.xmin + fac * BLI_rcti_size_x(&hor);
-			
+
 			dfac = grid->dx / BLI_rctf_size_x(&v2d->cur);
 			dfac = dfac * BLI_rcti_size_x(&hor);
-			
+
 			/* set starting value, and text color */
 			UI_FontThemeColor(font_id, TH_TEXT);
 			val = grid->startx;
-			
+
 			/* if we're clamping to whole numbers only, make sure entries won't be repeated */
 			if (vs->xclamp == V2D_GRID_CLAMP) {
 				while (grid->dx < 0.9999f) {
@@ -1899,25 +1899,25 @@ void UI_view2d_scrollers_draw(const bContext *C, View2D *v2d, View2DScrollers *v
 				BLF_batch_draw_begin();
 
 				for (; fac < hor.xmax - 0.5f * U.widget_unit; fac += dfac, val += grid->dx) {
-					
+
 					/* make prints look nicer for scrollers */
 					if (fac < hor.xmin + 0.5f * U.widget_unit)
 						continue;
-					
+
 					switch (vs->xunits) {
 						case V2D_UNIT_FRAMES:       /* frames (as whole numbers)*/
 							scroll_printstr(scene, fac, h, val, grid->powerx, V2D_UNIT_FRAMES, 'h');
 							break;
-							
+
 						case V2D_UNIT_FRAMESCALE:   /* frames (not always as whole numbers) */
 							scroll_printstr(scene, fac, h, val, grid->powerx, V2D_UNIT_FRAMESCALE, 'h');
 							break;
-						
+
 						case V2D_UNIT_SECONDS:      /* seconds */
 							fac2 = val / (float)FPS;
 							scroll_printstr(scene, fac, h, fac2, grid->powerx, V2D_UNIT_SECONDS, 'h');
 							break;
-							
+
 						case V2D_UNIT_DEGREES:      /* Graph Editor for rotation Drivers */
 							/* HACK: although we're drawing horizontal, we make this draw as 'vertical', just to get degree signs */
 							scroll_printstr(scene, fac, h, val, grid->powerx, V2D_UNIT_DEGREES, 'v');
@@ -1929,31 +1929,31 @@ void UI_view2d_scrollers_draw(const bContext *C, View2D *v2d, View2DScrollers *v
 			}
 		}
 	}
-	
+
 	/* vertical scrollbar */
 	if (scroll & V2D_SCROLL_VERTICAL) {
 		uiWidgetColors wcol = btheme->tui.wcol_scroll;
 		rcti slider;
 		const float alpha_fac = v2d->alpha_vert / 255.0f;
 		int state;
-		
+
 		slider.xmin = vert.xmin;
 		slider.xmax = vert.xmax;
 		slider.ymin = vs->vert_min;
 		slider.ymax = vs->vert_max;
-		
+
 		state = (v2d->scroll_ui & V2D_SCROLL_V_ACTIVE) ? UI_SCROLL_PRESSED : 0;
-		
+
 		wcol.inner[3]   *= alpha_fac;
 		wcol.item[3]    *= alpha_fac;
 		wcol.outline[3] *= alpha_fac;
 		btheme->tui.widget_emboss[3] *= alpha_fac; /* will be reset later */
-		
+
 		/* show zoom handles if:
 		 *	- zooming on y-axis is allowed (no scroll otherwise)
 		 *	- slider bubble is large enough (no overdraw confusion)
-		 *	- scale is shown on the scroller 
-		 *	  (workaround to make sure that button windows don't show these, 
+		 *	- scale is shown on the scroller
+		 *	  (workaround to make sure that button windows don't show these,
 		 *		and only the time-grids with their zoomability can do so)
 		 */
 		if ((v2d->keepzoom & V2D_LOCKZOOM_Y) == 0 &&
@@ -1962,16 +1962,16 @@ void UI_view2d_scrollers_draw(const bContext *C, View2D *v2d, View2DScrollers *v
 		{
 			state |= UI_SCROLL_ARROWS;
 		}
-		
+
 		UI_draw_widget_scroll(&wcol, &vert, &slider, state);
-		
-		
+
+
 		/* scale indiators */
 		if ((scroll & V2D_SCROLL_SCALE_VERTICAL) && (vs->grid)) {
 			View2DGrid *grid = vs->grid;
 			float fac, dfac, val;
-			
-			/* the numbers: convert grid->starty and dy to scroll coordinates 
+
+			/* the numbers: convert grid->starty and dy to scroll coordinates
 			 *	- fac is y-coordinate to draw to
 			 *	- dfac is gap between scale markings
 			 *	- these involve a correction for horizontal scrollbar
@@ -1979,38 +1979,38 @@ void UI_view2d_scrollers_draw(const bContext *C, View2D *v2d, View2DScrollers *v
 			 */
 			fac = (grid->starty - v2d->cur.ymin) / BLI_rctf_size_y(&v2d->cur);
 			fac = vert.ymin + fac * BLI_rcti_size_y(&vert);
-			
+
 			dfac = grid->dy / BLI_rctf_size_y(&v2d->cur);
 			dfac = dfac     * BLI_rcti_size_y(&vert);
-			
+
 			/* set starting value, and text color */
 			const int font_id = BLF_default();
 			UI_FontThemeColor(font_id, TH_TEXT);
 			val = grid->starty;
-			
+
 			/* if vertical clamping (to whole numbers) is used (i.e. in Sequencer), apply correction */
 			if (vs->yclamp == V2D_GRID_CLAMP)
 				fac += 0.5f * dfac;
-				
+
 			/* draw vertical steps */
 			if (dfac > 0.0f) {
 				BLF_rotation(font_id, M_PI_2);
 				BLF_enable(font_id, BLF_ROTATION);
 
 				for (; fac < vert.ymax - 10; fac += dfac, val += grid->dy) {
-					
+
 					/* make prints look nicer for scrollers */
 					if (fac < vert.ymin + 10)
 						continue;
-					
+
 					scroll_printstr(scene, (float)(vert.xmax) - 2.0f, fac, val, grid->powery, vs->yunits, 'v');
 				}
-				
+
 				BLF_disable(font_id, BLF_ROTATION);
 			}
 		}
 	}
-	
+
 	/* Was changed above, so reset. */
 	btheme->tui.widget_emboss[3] = emboss_alpha;
 }
@@ -2055,21 +2055,21 @@ void UI_view2d_listview_cell_to_view(
 		rect->ymin = rect->ymax = 0.0f;
 		return;
 	}
-	
+
 	/* x-coordinates */
 	rect->xmin = startx + (float)(columnwidth * column);
 	rect->xmax = startx + (float)(columnwidth * (column + 1));
-	
+
 	if ((v2d->align & V2D_ALIGN_NO_POS_X) && !(v2d->align & V2D_ALIGN_NO_NEG_X)) {
 		/* simply negate the values for the coordinates if in negative half */
 		rect->xmin = -rect->xmin;
 		rect->xmax = -rect->xmax;
 	}
-	
+
 	/* y-coordinates */
 	rect->ymin = starty + (float)(rowheight * row);
 	rect->ymax = starty + (float)(rowheight * (row + 1));
-	
+
 	if ((v2d->align & V2D_ALIGN_NO_POS_Y) && !(v2d->align & V2D_ALIGN_NO_NEG_Y)) {
 		/* simply negate the values for the coordinates if in negative half */
 		rect->ymin = -rect->ymin;
@@ -2095,21 +2095,21 @@ void UI_view2d_listview_view_to_cell(
 	/* adjust view coordinates to be all positive ints, corrected for the start offset */
 	const int x = (int)(floorf(fabsf(viewx) + 0.5f) - startx);
 	const int y = (int)(floorf(fabsf(viewy) + 0.5f) - starty);
-	
+
 	/* sizes must not be negative */
 	if ((v2d == NULL) || ((columnwidth <= 0) && (rowheight <= 0))) {
 		if (column) *column = 0;
 		if (row) *row = 0;
-		
+
 		return;
 	}
-	
+
 	/* get column */
 	if ((column) && (columnwidth > 0))
 		*column = x / columnwidth;
 	else if (column)
 		*column = 0;
-	
+
 	/* get row */
 	if ((row) && (rowheight > 0))
 		*row = y / rowheight;
@@ -2131,11 +2131,11 @@ void UI_view2d_listview_visible_cells(
 	/* using 'cur' rect coordinates, call the cell-getting function to get the cells for this */
 	if (v2d) {
 		/* min */
-		UI_view2d_listview_view_to_cell(v2d, columnwidth, rowheight, startx, starty, 
+		UI_view2d_listview_view_to_cell(v2d, columnwidth, rowheight, startx, starty,
 		                                v2d->cur.xmin, v2d->cur.ymin, column_min, row_min);
 
 		/* max*/
-		UI_view2d_listview_view_to_cell(v2d, columnwidth, rowheight, startx, starty, 
+		UI_view2d_listview_view_to_cell(v2d, columnwidth, rowheight, startx, starty,
 		                                v2d->cur.xmax, v2d->cur.ymax, column_max, row_max);
 	}
 }
@@ -2196,7 +2196,7 @@ bool UI_view2d_view_to_region_clip(View2D *v2d, float x, float y, int *r_region_
 	/* express given coordinates as proportional values */
 	x = (x - v2d->cur.xmin) / BLI_rctf_size_x(&v2d->cur);
 	y = (y - v2d->cur.ymin) / BLI_rctf_size_y(&v2d->cur);
-	
+
 	/* check if values are within bounds */
 	if ((x >= 0.0f) && (x <= 1.0f) && (y >= 0.0f) && (y <= 1.0f)) {
 		*r_region_x = (int)(v2d->mask.xmin + (x * BLI_rcti_size_x(&v2d->mask)));
@@ -2348,7 +2348,7 @@ View2D *UI_view2d_fromcontext_rwin(const bContext *C)
  *
  * \param x, y: scale on each axis
  */
-void UI_view2d_scale_get(View2D *v2d, float *x, float *y) 
+void UI_view2d_scale_get(View2D *v2d, float *x, float *y)
 {
 	if (x) *x = BLI_rcti_size_x(&v2d->mask) / BLI_rctf_size_x(&v2d->cur);
 	if (y) *y = BLI_rcti_size_y(&v2d->mask) / BLI_rctf_size_y(&v2d->cur);
@@ -2423,11 +2423,11 @@ short UI_view2d_mouse_in_scrollers(const ARegion *ar, View2D *v2d, int x, int y)
 {
 	int co[2];
 	int scroll = view2d_scroll_mapped(v2d->scroll);
-	
+
 	/* clamp x,y to region-coordinates first */
 	co[0] = x - ar->winrct.xmin;
 	co[1] = y - ar->winrct.ymin;
-	
+
 	/* check if within scrollbars */
 	if (scroll & V2D_SCROLL_HORIZONTAL) {
 		if (IN_2D_HORIZ_SCROLL(v2d, co)) return 'h';
@@ -2435,7 +2435,7 @@ short UI_view2d_mouse_in_scrollers(const ARegion *ar, View2D *v2d, int x, int y)
 	if (scroll & V2D_SCROLL_VERTICAL) {
 		if (IN_2D_VERT_SCROLL(v2d, co)) return 'v';
 	}
-	
+
 	/* not found */
 	return 0;
 }
@@ -2464,7 +2464,7 @@ void UI_view2d_text_cache_add(
         const char *str, size_t str_len, const char col[4])
 {
 	int mval[2];
-	
+
 	BLI_assert(str_len == strlen(str));
 
 	if (UI_view2d_view_to_region_clip(v2d, x, y, &mval[0], &mval[1])) {
diff --git a/source/blender/editors/interface/view2d_ops.c b/source/blender/editors/interface/view2d_ops.c
index 4cd3aad8103..fbc8fe790c9 100644
--- a/source/blender/editors/interface/view2d_ops.c
+++ b/source/blender/editors/interface/view2d_ops.c
@@ -4,7 +4,7 @@
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version. 
+ * of the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -17,7 +17,7 @@
  *
  * The Original Code is Copyright (C) 2008 Blender Foundation.
  * All rights reserved.
- * 
+ *
  * Contributor(s): Blender Foundation, Joshua Leung
  *
  * ***** END GPL LICENSE BLOCK *****
@@ -73,7 +73,7 @@ static int view2d_poll(bContext *C)
  */
 
 /* ------------------ Shared 'core' stuff ---------------------- */
- 
+
 /* temp customdata for operator */
 typedef struct v2dViewPanData {
 	bScreen *sc;            /* screen where view pan was initiated */
@@ -87,10 +87,10 @@ typedef struct v2dViewPanData {
 	int startx, starty;     /* mouse x/y values in window when operator was initiated */
 	int lastx, lasty;       /* previous x/y values of mouse in window */
 	int invoke_event;       /* event starting pan, for modal exit */
-	
+
 	short in_scroller;      /* for MMB in scrollers (old feature in past, but now not that useful) */
 } v2dViewPanData;
- 
+
 /* initialize panning customdata */
 static int view_pan_init(bContext *C, wmOperator *op)
 {
@@ -98,32 +98,32 @@ static int view_pan_init(bContext *C, wmOperator *op)
 	v2dViewPanData *vpd;
 	View2D *v2d;
 	float winx, winy;
-	
+
 	/* regions now have v2d-data by default, so check for region */
 	if (ar == NULL)
 		return 0;
-		
+
 	/* check if panning is allowed at all */
 	v2d = &ar->v2d;
 	if ((v2d->keepofs & V2D_LOCKOFS_X) && (v2d->keepofs & V2D_LOCKOFS_Y))
 		return 0;
-	
+
 	/* set custom-data for operator */
 	vpd = MEM_callocN(sizeof(v2dViewPanData), "v2dViewPanData");
 	op->customdata = vpd;
-	
+
 	/* set pointers to owners */
 	vpd->sc = CTX_wm_screen(C);
 	vpd->sa = CTX_wm_area(C);
 	vpd->v2d = v2d;
 	vpd->ar = ar;
-	
+
 	/* calculate translation factor - based on size of view */
 	winx = (float)(BLI_rcti_size_x(&ar->winrct) + 1);
 	winy = (float)(BLI_rcti_size_y(&ar->winrct) + 1);
 	vpd->facx = (BLI_rctf_size_x(&v2d->cur)) / winx;
 	vpd->facy = (BLI_rctf_size_y(&v2d->cur)) / winy;
-	
+
 	return 1;
 }
 
@@ -151,11 +151,11 @@ static int view_pan_poll(bContext *C)
 static void view_pan_apply_ex(bContext *C, v2dViewPanData *vpd, float dx, float dy)
 {
 	View2D *v2d = vpd->v2d;
-	
+
 	/* calculate amount to move view by */
 	dx *= vpd->facx;
 	dy *= vpd->facy;
-	
+
 	/* only move view on an axis if change is allowed */
 	if ((v2d->keepofs & V2D_LOCKOFS_X) == 0) {
 		v2d->cur.xmin += dx;
@@ -165,10 +165,10 @@ static void view_pan_apply_ex(bContext *C, v2dViewPanData *vpd, float dx, float
 		v2d->cur.ymin += dy;
 		v2d->cur.ymax += dy;
 	}
-	
+
 	/* validate that view is in valid configuration after this operation */
 	UI_view2d_curRect_validate(v2d);
-	
+
 	/* don't rebuild full tree in outliner, since we're just changing our view */
 	ED_region_tag_redraw_no_rebuild(vpd->ar);
 
@@ -195,8 +195,8 @@ static void view_pan_exit(wmOperator *op)
 		MEM_freeN(op->customdata);
 		op->customdata = NULL;
 	}
-} 
- 
+}
+
 /* ------------------ Modal Drag Version (1) ---------------------- */
 
 /* for 'redo' only, with no user input */
@@ -204,7 +204,7 @@ static int view_pan_exec(bContext *C, wmOperator *op)
 {
 	if (!view_pan_init(C, op))
 		return OPERATOR_CANCELLED;
-	
+
 	view_pan_apply(C, op);
 	view_pan_exit(op);
 	return OPERATOR_FINISHED;
@@ -216,38 +216,38 @@ static int view_pan_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 	wmWindow *window = CTX_wm_window(C);
 	v2dViewPanData *vpd;
 	View2D *v2d;
-	
+
 	/* set up customdata */
 	if (!view_pan_init(C, op))
 		return OPERATOR_PASS_THROUGH;
-	
+
 	vpd = op->customdata;
 	v2d = vpd->v2d;
-	
+
 	/* set initial settings */
 	vpd->startx = vpd->lastx = event->x;
 	vpd->starty = vpd->lasty = event->y;
 	vpd->invoke_event = event->type;
-	
+
 	if (event->type == MOUSEPAN) {
 		RNA_int_set(op->ptr, "deltax", event->prevx - event->x);
 		RNA_int_set(op->ptr, "deltay", event->prevy - event->y);
-		
+
 		view_pan_apply(C, op);
 		view_pan_exit(op);
 		return OPERATOR_FINISHED;
 	}
-	
+
 	RNA_int_set(op->ptr, "deltax", 0);
 	RNA_int_set(op->ptr, "deltay", 0);
-	
+
 	if (v2d->keepofs & V2D_LOCKOFS_X)
 		WM_cursor_modal_set(window, BC_NS_SCROLLCURSOR);
 	else if (v2d->keepofs & V2D_LOCKOFS_Y)
 		WM_cursor_modal_set(window, BC_EW_SCROLLCURSOR);
 	else
 		WM_cursor_modal_set(window, BC_NSEW_SCROLLCURSOR);
-	
+
 	/* add temp handler */
 	WM_event_add_modal_handler(C, op);
 
@@ -258,7 +258,7 @@ static int view_pan_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 static int view_pan_modal(bContext *C, wmOperator *op, const wmEvent *event)
 {
 	v2dViewPanData *vpd = op->customdata;
-	
+
 	/* execute the events */
 	switch (event->type) {
 		case MOUSEMOVE:
@@ -266,10 +266,10 @@ static int view_pan_modal(bContext *C, wmOperator *op, const wmEvent *event)
 			/* calculate new delta transform, then store mouse-coordinates for next-time */
 			RNA_int_set(op->ptr, "deltax", (vpd->lastx - event->x));
 			RNA_int_set(op->ptr, "deltay", (vpd->lasty - event->y));
-			
+
 			vpd->lastx = event->x;
 			vpd->lasty = event->y;
-			
+
 			view_pan_apply(C, op);
 			break;
 		}
@@ -281,7 +281,7 @@ static int view_pan_modal(bContext *C, wmOperator *op, const wmEvent *event)
 				/* calculate overall delta mouse-movement for redo */
 				RNA_int_set(op->ptr, "deltax", (vpd->startx - vpd->lastx));
 				RNA_int_set(op->ptr, "deltay", (vpd->starty - vpd->lasty));
-				
+
 				view_pan_exit(op);
 				WM_cursor_modal_restore(CTX_wm_window(C));
 				WM_operator_name_call(C, "VIEW2D_OT_zoom", WM_OP_INVOKE_DEFAULT, NULL);
@@ -294,10 +294,10 @@ static int view_pan_modal(bContext *C, wmOperator *op, const wmEvent *event)
 					/* calculate overall delta mouse-movement for redo */
 					RNA_int_set(op->ptr, "deltax", (vpd->startx - vpd->lastx));
 					RNA_int_set(op->ptr, "deltay", (vpd->starty - vpd->lasty));
-					
+
 					view_pan_exit(op);
 					WM_cursor_modal_restore(CTX_wm_window(C));
-					
+
 					return OPERATOR_FINISHED;
 				}
 			}
@@ -318,16 +318,16 @@ static void VIEW2D_OT_pan(wmOperatorType *ot)
 	ot->name = "Pan View";
 	ot->description = "Pan the view";
 	ot->idname = "VIEW2D_OT_pan";
-	
+
 	/* api callbacks */
 	ot->exec = view_pan_exec;
 	ot->invoke = view_pan_invoke;
 	ot->modal = view_pan_modal;
 	ot->cancel = view_pan_cancel;
-	
+
 	/* operator is modal */
 	ot->flag = OPTYPE_BLOCKING | OPTYPE_GRAB_CURSOR;
-	
+
 	/* rna - must keep these in sync with the other operators */
 	RNA_def_int(ot->srna, "deltax", 0, INT_MIN, INT_MAX, "Delta X", "", INT_MIN, INT_MAX);
 	RNA_def_int(ot->srna, "deltay", 0, INT_MIN, INT_MAX, "Delta Y", "", INT_MIN, INT_MAX);
@@ -339,26 +339,26 @@ static void VIEW2D_OT_pan(wmOperatorType *ot)
 static int view_scrollright_exec(bContext *C, wmOperator *op)
 {
 	v2dViewPanData *vpd;
-	
+
 	/* initialize default settings (and validate if ok to run) */
 	if (!view_pan_init(C, op))
 		return OPERATOR_PASS_THROUGH;
-		
+
 	/* also, check if can pan in horizontal axis */
 	vpd = op->customdata;
 	if (vpd->v2d->keepofs & V2D_LOCKOFS_X) {
 		view_pan_exit(op);
 		return OPERATOR_PASS_THROUGH;
 	}
-	
+
 	/* set RNA-Props - only movement in positive x-direction */
 	RNA_int_set(op->ptr, "deltax", 20);
 	RNA_int_set(op->ptr, "deltay", 0);
-	
+
 	/* apply movement, then we're done */
 	view_pan_apply(C, op);
 	view_pan_exit(op);
-	
+
 	return OPERATOR_FINISHED;
 }
 
@@ -368,10 +368,10 @@ static void VIEW2D_OT_scroll_right(wmOperatorType *ot)
 	ot->name = "Scroll Right";
 	ot->description = "Scroll the view right";
 	ot->idname = "VIEW2D_OT_scroll_right";
-	
+
 	/* api callbacks */
 	ot->exec = view_scrollright_exec;
-	
+
 	/* rna - must keep these in sync with the other operators */
 	RNA_def_int(ot->srna, "deltax", 0, INT_MIN, INT_MAX, "Delta X", "", INT_MIN, INT_MAX);
 	RNA_def_int(ot->srna, "deltay", 0, INT_MIN, INT_MAX, "Delta Y", "", INT_MIN, INT_MAX);
@@ -383,26 +383,26 @@ static void VIEW2D_OT_scroll_right(wmOperatorType *ot)
 static int view_scrollleft_exec(bContext *C, wmOperator *op)
 {
 	v2dViewPanData *vpd;
-	
+
 	/* initialize default settings (and validate if ok to run) */
 	if (!view_pan_init(C, op))
 		return OPERATOR_PASS_THROUGH;
-		
+
 	/* also, check if can pan in horizontal axis */
 	vpd = op->customdata;
 	if (vpd->v2d->keepofs & V2D_LOCKOFS_X) {
 		view_pan_exit(op);
 		return OPERATOR_PASS_THROUGH;
 	}
-	
+
 	/* set RNA-Props - only movement in negative x-direction */
 	RNA_int_set(op->ptr, "deltax", -20);
 	RNA_int_set(op->ptr, "deltay", 0);
-	
+
 	/* apply movement, then we're done */
 	view_pan_apply(C, op);
 	view_pan_exit(op);
-	
+
 	return OPERATOR_FINISHED;
 }
 
@@ -412,10 +412,10 @@ static void VIEW2D_OT_scroll_left(wmOperatorType *ot)
 	ot->name = "Scroll Left";
 	ot->description = "Scroll the view left";
 	ot->idname = "VIEW2D_OT_scroll_left";
-	
+
 	/* api callbacks */
 	ot->exec = view_scrollleft_exec;
-	
+
 	/* rna - must keep these in sync with the other operators */
 	RNA_def_int(ot->srna, "deltax", 0, INT_MIN, INT_MAX, "Delta X", "", INT_MIN, INT_MAX);
 	RNA_def_int(ot->srna, "deltay", 0, INT_MIN, INT_MAX, "Delta Y", "", INT_MIN, INT_MAX);
@@ -426,32 +426,32 @@ static void VIEW2D_OT_scroll_left(wmOperatorType *ot)
 static int view_scrolldown_exec(bContext *C, wmOperator *op)
 {
 	v2dViewPanData *vpd;
-	
+
 	/* initialize default settings (and validate if ok to run) */
 	if (!view_pan_init(C, op))
 		return OPERATOR_PASS_THROUGH;
-		
+
 	/* also, check if can pan in vertical axis */
 	vpd = op->customdata;
 	if (vpd->v2d->keepofs & V2D_LOCKOFS_Y) {
 		view_pan_exit(op);
 		return OPERATOR_PASS_THROUGH;
 	}
-	
+
 	/* set RNA-Props */
 	RNA_int_set(op->ptr, "deltax", 0);
 	RNA_int_set(op->ptr, "deltay", -40);
-	
+
 	PropertyRNA *prop = RNA_struct_find_property(op->ptr, "page");
 	if (RNA_property_is_set(op->ptr, prop) && RNA_property_boolean_get(op->ptr, prop)) {
 		ARegion *ar = CTX_wm_region(C);
 		RNA_int_set(op->ptr, "deltay", ar->v2d.mask.ymin - ar->v2d.mask.ymax);
 	}
-	
+
 	/* apply movement, then we're done */
 	view_pan_apply(C, op);
 	view_pan_exit(op);
-	
+
 	return OPERATOR_FINISHED;
 }
 
@@ -461,10 +461,10 @@ static void VIEW2D_OT_scroll_down(wmOperatorType *ot)
 	ot->name = "Scroll Down";
 	ot->description = "Scroll the view down";
 	ot->idname = "VIEW2D_OT_scroll_down";
-	
+
 	/* api callbacks */
 	ot->exec = view_scrolldown_exec;
-	
+
 	/* rna - must keep these in sync with the other operators */
 	RNA_def_int(ot->srna, "deltax", 0, INT_MIN, INT_MAX, "Delta X", "", INT_MIN, INT_MAX);
 	RNA_def_int(ot->srna, "deltay", 0, INT_MIN, INT_MAX, "Delta Y", "", INT_MIN, INT_MAX);
@@ -477,32 +477,32 @@ static void VIEW2D_OT_scroll_down(wmOperatorType *ot)
 static int view_scrollup_exec(bContext *C, wmOperator *op)
 {
 	v2dViewPanData *vpd;
-	
+
 	/* initialize default settings (and validate if ok to run) */
 	if (!view_pan_init(C, op))
 		return OPERATOR_PASS_THROUGH;
-		
+
 	/* also, check if can pan in vertical axis */
 	vpd = op->customdata;
 	if (vpd->v2d->keepofs & V2D_LOCKOFS_Y) {
 		view_pan_exit(op);
 		return OPERATOR_PASS_THROUGH;
 	}
-	
+
 	/* set RNA-Props */
 	RNA_int_set(op->ptr, "deltax", 0);
 	RNA_int_set(op->ptr, "deltay", 40);
-	
+
 	PropertyRNA *prop = RNA_struct_find_property(op->ptr, "page");
 	if (RNA_property_is_set(op->ptr, prop) && RNA_property_boolean_get(op->ptr, prop)) {
 		ARegion *ar = CTX_wm_region(C);
 		RNA_int_set(op->ptr, "deltay", BLI_rcti_size_y(&ar->v2d.mask));
 	}
-	
+
 	/* apply movement, then we're done */
 	view_pan_apply(C, op);
 	view_pan_exit(op);
-	
+
 	return OPERATOR_FINISHED;
 }
 
@@ -512,10 +512,10 @@ static void VIEW2D_OT_scroll_up(wmOperatorType *ot)
 	ot->name = "Scroll Up";
 	ot->description = "Scroll the view up";
 	ot->idname = "VIEW2D_OT_scroll_up";
-	
+
 	/* api callbacks */
 	ot->exec = view_scrollup_exec;
-	
+
 	/* rna - must keep these in sync with the other operators */
 	RNA_def_int(ot->srna, "deltax", 0, INT_MIN, INT_MAX, "Delta X", "", INT_MIN, INT_MAX);
 	RNA_def_int(ot->srna, "deltay", 0, INT_MIN, INT_MAX, "Delta Y", "", INT_MIN, INT_MAX);
@@ -582,24 +582,24 @@ static int view_zoomdrag_init(bContext *C, wmOperator *op)
 	ARegion *ar = CTX_wm_region(C);
 	v2dViewZoomData *vzd;
 	View2D *v2d;
-	
+
 	/* regions now have v2d-data by default, so check for region */
 	if (ar == NULL)
 		return 0;
 	v2d = &ar->v2d;
-	
+
 	/* check that 2d-view is zoomable */
 	if ((v2d->keepzoom & V2D_LOCKZOOM_X) && (v2d->keepzoom & V2D_LOCKZOOM_Y))
 		return 0;
-	
+
 	/* set custom-data for operator */
 	vzd = MEM_callocN(sizeof(v2dViewZoomData), "v2dViewZoomData");
 	op->customdata = vzd;
-	
+
 	/* set pointers to owners */
 	vzd->v2d = v2d;
 	vzd->ar = ar;
-	
+
 	return 1;
 }
 
@@ -608,7 +608,7 @@ static int view_zoom_poll(bContext *C)
 {
 	ARegion *ar = CTX_wm_region(C);
 	View2D *v2d;
-	
+
 	/* check if there's a region in context to work with */
 	if (ar == NULL)
 		return false;
@@ -618,15 +618,15 @@ static int view_zoom_poll(bContext *C)
 		return false;
 
 	v2d = &ar->v2d;
-	
+
 	/* check that 2d-view is zoomable */
 	if ((v2d->keepzoom & V2D_LOCKZOOM_X) && (v2d->keepzoom & V2D_LOCKZOOM_Y))
 		return false;
-		
+
 	/* view is zoomable */
 	return true;
 }
- 
+
 /* apply transform to view (i.e. adjust 'cur' rect) */
 static void view_zoomstep_apply_ex(
         bContext *C, v2dViewZoomData *vzd, const bool use_mousepos,
@@ -639,7 +639,7 @@ static void view_zoomstep_apply_ex(
 	const int snap_test = ED_region_snap_size_test(ar);
 
 	/* calculate amount to move view by, ensuring symmetry so the
-	 * old zoom level is restored after zooming back the same amount 
+	 * old zoom level is restored after zooming back the same amount
 	 */
 	if (facx >= 0.0f) {
 		dx = BLI_rctf_size_x(&v2d->cur) * facx;
@@ -761,40 +761,40 @@ static int view_zoomin_exec(bContext *C, wmOperator *op)
 	/* check that there's an active region, as View2D data resides there */
 	if (!view_zoom_poll(C))
 		return OPERATOR_PASS_THROUGH;
-	
+
 
 	view_zoom_axis_lock_defaults(C, do_zoom_xy);
 
 	/* set RNA-Props - zooming in by uniform factor */
 	RNA_float_set(op->ptr, "zoomfacx", do_zoom_xy[0] ? 0.0375f : 0.0f);
 	RNA_float_set(op->ptr, "zoomfacy", do_zoom_xy[1] ? 0.0375f : 0.0f);
-	
+
 	/* apply movement, then we're done */
 	view_zoomstep_apply(C, op);
-	
+
 	view_zoomstep_exit(op);
-	
+
 	return OPERATOR_FINISHED;
 }
 
 static int view_zoomin_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 {
 	v2dViewZoomData *vzd;
-	
+
 	if (!view_zoomdrag_init(C, op))
 		return OPERATOR_PASS_THROUGH;
-	
+
 	vzd = op->customdata;
-	
+
 	if (U.uiflag & USER_ZOOM_TO_MOUSEPOS) {
 		ARegion *ar = CTX_wm_region(C);
-		
+
 		/* store initial mouse position (in view space) */
 		UI_view2d_region_to_view(&ar->v2d,
 		                         event->mval[0], event->mval[1],
 		                         &vzd->mx_2d, &vzd->my_2d);
 	}
-	
+
 	return view_zoomin_exec(C, op);
 }
 
@@ -806,12 +806,12 @@ static void VIEW2D_OT_zoom_in(wmOperatorType *ot)
 	ot->name = "Zoom In";
 	ot->description = "Zoom in the view";
 	ot->idname = "VIEW2D_OT_zoom_in";
-	
+
 	/* api callbacks */
 	ot->invoke = view_zoomin_invoke;
 	ot->exec = view_zoomin_exec;  // XXX, needs view_zoomdrag_init called first.
 	ot->poll = view_zoom_poll;
-	
+
 	/* rna - must keep these in sync with the other operators */
 	prop = RNA_def_float(ot->srna, "zoomfacx", 0, -FLT_MAX, FLT_MAX, "Zoom Factor X", "", -FLT_MAX, FLT_MAX);
 	RNA_def_property_flag(prop, PROP_HIDDEN);
@@ -827,39 +827,39 @@ static int view_zoomout_exec(bContext *C, wmOperator *op)
 	/* check that there's an active region, as View2D data resides there */
 	if (!view_zoom_poll(C))
 		return OPERATOR_PASS_THROUGH;
-	
+
 	view_zoom_axis_lock_defaults(C, do_zoom_xy);
 
 	/* set RNA-Props - zooming in by uniform factor */
 	RNA_float_set(op->ptr, "zoomfacx", do_zoom_xy[0] ? -0.0375f : 0.0f);
 	RNA_float_set(op->ptr, "zoomfacy", do_zoom_xy[1] ? -0.0375f : 0.0f);
-	
+
 	/* apply movement, then we're done */
 	view_zoomstep_apply(C, op);
 
 	view_zoomstep_exit(op);
-	
+
 	return OPERATOR_FINISHED;
 }
 
 static int view_zoomout_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 {
 	v2dViewZoomData *vzd;
-	
+
 	if (!view_zoomdrag_init(C, op))
 		return OPERATOR_PASS_THROUGH;
 
 	vzd = op->customdata;
-	
+
 	if (U.uiflag & USER_ZOOM_TO_MOUSEPOS) {
 		ARegion *ar = CTX_wm_region(C);
-		
+
 		/* store initial mouse position (in view space) */
-		UI_view2d_region_to_view(&ar->v2d, 
+		UI_view2d_region_to_view(&ar->v2d,
 		                         event->mval[0], event->mval[1],
 		                         &vzd->mx_2d, &vzd->my_2d);
 	}
-	
+
 	return view_zoomout_exec(C, op);
 }
 
@@ -871,12 +871,12 @@ static void VIEW2D_OT_zoom_out(wmOperatorType *ot)
 	ot->name = "Zoom Out";
 	ot->description = "Zoom out the view";
 	ot->idname = "VIEW2D_OT_zoom_out";
-	
+
 	/* api callbacks */
 	ot->invoke = view_zoomout_invoke;
 //	ot->exec = view_zoomout_exec; // XXX, needs view_zoomdrag_init called first.
 	ot->poll = view_zoom_poll;
-	
+
 	/* rna - must keep these in sync with the other operators */
 	prop = RNA_def_float(ot->srna, "zoomfacx", 0, -FLT_MAX, FLT_MAX, "Zoom Factor X", "", -FLT_MAX, FLT_MAX);
 	RNA_def_property_flag(prop, PROP_HIDDEN);
@@ -910,7 +910,7 @@ static void view_zoomdrag_apply(bContext *C, wmOperator *op)
 		dx *= -1;
 		dy *= -1;
 	}
-	
+
 	/* continuous zoom shouldn't move that fast... */
 	if (U.viewzoom == USER_ZOOM_CONT) { // XXX store this setting as RNA prop?
 		double time = PIL_check_seconds_timer();
@@ -918,7 +918,7 @@ static void view_zoomdrag_apply(bContext *C, wmOperator *op)
 
 		dx *= time_step * 0.5f;
 		dy *= time_step * 0.5f;
-		
+
 		vzd->timer_lastdraw = time;
 	}
 
@@ -932,7 +932,7 @@ static void view_zoomdrag_apply(bContext *C, wmOperator *op)
 				float mval_fac = (vzd->mx_2d - v2d->cur.xmin) / BLI_rctf_size_x(&v2d->cur);
 				float mval_faci = 1.0f - mval_fac;
 				float ofs = (mval_fac * dx) - (mval_faci * dx);
-				
+
 				v2d->cur.xmin += ofs + dx;
 				v2d->cur.xmax += ofs - dx;
 			}
@@ -951,7 +951,7 @@ static void view_zoomdrag_apply(bContext *C, wmOperator *op)
 				float mval_fac = (vzd->my_2d - v2d->cur.ymin) / BLI_rctf_size_y(&v2d->cur);
 				float mval_faci = 1.0f - mval_fac;
 				float ofs = (mval_fac * dy) - (mval_faci * dy);
-				
+
 				v2d->cur.ymin += ofs + dy;
 				v2d->cur.ymax += ofs - dy;
 			}
@@ -961,7 +961,7 @@ static void view_zoomdrag_apply(bContext *C, wmOperator *op)
 			}
 		}
 	}
-	
+
 	/* validate that view is in valid configuration after this operation */
 	UI_view2d_curRect_validate(v2d);
 
@@ -983,14 +983,14 @@ static void view_zoomdrag_exit(bContext *C, wmOperator *op)
 
 	if (op->customdata) {
 		v2dViewZoomData *vzd = op->customdata;
-		
+
 		if (vzd->timer)
 			WM_event_remove_timer(CTX_wm_manager(C), CTX_wm_window(C), vzd->timer);
-		
+
 		MEM_freeN(op->customdata);
 		op->customdata = NULL;
 	}
-} 
+}
 
 static void view_zoomdrag_cancel(bContext *C, wmOperator *op)
 {
@@ -1002,7 +1002,7 @@ static int view_zoomdrag_exec(bContext *C, wmOperator *op)
 {
 	if (!view_zoomdrag_init(C, op))
 		return OPERATOR_PASS_THROUGH;
-	
+
 	view_zoomdrag_apply(C, op);
 	view_zoomdrag_exit(C, op);
 	return OPERATOR_FINISHED;
@@ -1014,22 +1014,22 @@ static int view_zoomdrag_invoke(bContext *C, wmOperator *op, const wmEvent *even
 	wmWindow *window = CTX_wm_window(C);
 	v2dViewZoomData *vzd;
 	View2D *v2d;
-	
+
 	/* set up customdata */
 	if (!view_zoomdrag_init(C, op))
 		return OPERATOR_PASS_THROUGH;
-	
+
 	vzd = op->customdata;
 	v2d = vzd->v2d;
-	
+
 	if (event->type == MOUSEZOOM || event->type == MOUSEPAN) {
 		float dx, dy, fac;
-		
+
 		vzd->lastx = event->prevx;
 		vzd->lasty = event->prevy;
-		
+
 		/* As we have only 1D information (magnify value), feed both axes
-		 * with magnify information that is stored in x axis 
+		 * with magnify information that is stored in x axis
 		 */
 		fac = 0.01f * (event->prevx - event->x);
 		dx = fac * BLI_rctf_size_x(&v2d->cur) / 10.0f;
@@ -1046,26 +1046,26 @@ static int view_zoomdrag_invoke(bContext *C, wmOperator *op, const wmEvent *even
 		}
 		RNA_float_set(op->ptr, "deltax", dx);
 		RNA_float_set(op->ptr, "deltay", dy);
-		
+
 		view_zoomdrag_apply(C, op);
 		view_zoomdrag_exit(C, op);
 		return OPERATOR_FINISHED;
 	}
-	
+
 	/* set initial settings */
 	vzd->lastx = event->x;
 	vzd->lasty = event->y;
 	RNA_float_set(op->ptr, "deltax", 0);
 	RNA_float_set(op->ptr, "deltay", 0);
-	
+
 	/* for modal exit test */
 	vzd->invoke_event = event->type;
-	
+
 	if (U.uiflag & USER_ZOOM_TO_MOUSEPOS) {
 		ARegion *ar = CTX_wm_region(C);
-		
+
 		/* store initial mouse position (in view space) */
-		UI_view2d_region_to_view(&ar->v2d, 
+		UI_view2d_region_to_view(&ar->v2d,
 		                         event->mval[0], event->mval[1],
 		                         &vzd->mx_2d, &vzd->my_2d);
 	}
@@ -1076,7 +1076,7 @@ static int view_zoomdrag_invoke(bContext *C, wmOperator *op, const wmEvent *even
 		WM_cursor_modal_set(window, BC_EW_SCROLLCURSOR);
 	else
 		WM_cursor_modal_set(window, BC_NSEW_SCROLLCURSOR);
-	
+
 	/* add temp handler */
 	WM_event_add_modal_handler(C, op);
 
@@ -1094,24 +1094,24 @@ static int view_zoomdrag_modal(bContext *C, wmOperator *op, const wmEvent *event
 {
 	v2dViewZoomData *vzd = op->customdata;
 	View2D *v2d = vzd->v2d;
-	
+
 	/* execute the events */
 	if (event->type == TIMER && event->customdata == vzd->timer) {
 		view_zoomdrag_apply(C, op);
 	}
 	else if (event->type == MOUSEMOVE) {
 		float dx, dy;
-		
+
 		/* calculate new delta transform, based on zooming mode */
 		if (U.viewzoom == USER_ZOOM_SCALE) {
 			/* 'scale' zooming */
 			float dist;
-			
+
 			/* x-axis transform */
 			dist = BLI_rcti_size_x(&v2d->mask) / 2.0f;
 			dx = 1.0f - (fabsf(vzd->lastx - vzd->ar->winrct.xmin - dist) + 2.0f) / (fabsf(event->mval[0] - dist) + 2.0f);
 			dx *= 0.5f * BLI_rctf_size_x(&v2d->cur);
-			
+
 			/* y-axis transform */
 			dist = BLI_rcti_size_y(&v2d->mask) / 2.0f;
 			dy = 1.0f - (fabsf(vzd->lasty - vzd->ar->winrct.ymin - dist) + 2.0f) / (fabsf(event->mval[1] - dist) + 2.0f);
@@ -1120,21 +1120,21 @@ static int view_zoomdrag_modal(bContext *C, wmOperator *op, const wmEvent *event
 		else {
 			/* 'continuous' or 'dolly' */
 			float fac, zoomfac = 0.01f;
-			
+
 			/* some view2d's (graph) don't have min/max zoom, or extreme ones */
 			if (v2d->maxzoom > 0.0f)
 				zoomfac = CLAMPIS(0.001f * v2d->maxzoom, 0.001f, 0.01f);
-			
+
 			/* x-axis transform */
 			fac = zoomfac * (event->x - vzd->lastx);
 			dx = fac * BLI_rctf_size_x(&v2d->cur);
-			
+
 			/* y-axis transform */
 			fac = zoomfac * (event->y - vzd->lasty);
 			dy = fac * BLI_rctf_size_y(&v2d->cur);
-			
+
 		}
-		
+
 		/* support zoom to always zoom entirely - the v2d code uses portrait or landscape exceptions */
 		if (v2d->keepzoom & V2D_KEEPASPECT) {
 			if (fabsf(dx) > fabsf(dy))
@@ -1142,14 +1142,14 @@ static int view_zoomdrag_modal(bContext *C, wmOperator *op, const wmEvent *event
 			else
 				dx = dy;
 		}
-		
+
 		/* set transform amount, and add current deltas to stored total delta (for redo) */
 		RNA_float_set(op->ptr, "deltax", dx);
 		RNA_float_set(op->ptr, "deltay", dy);
 
 		vzd->dx += dx;
 		vzd->dy += dy;
-		
+
 		/* store mouse coordinates for next time, if not doing continuous zoom
 		 *	- continuous zoom only depends on distance of mouse to starting point to determine rate of change
 		 */
@@ -1157,28 +1157,28 @@ static int view_zoomdrag_modal(bContext *C, wmOperator *op, const wmEvent *event
 			vzd->lastx = event->x;
 			vzd->lasty = event->y;
 		}
-		
+
 		/* apply zooming */
 		view_zoomdrag_apply(C, op);
 	}
 	else if (event->type == vzd->invoke_event || event->type == ESCKEY) {
 		if (event->val == KM_RELEASE) {
-			
+
 			/* for redo, store the overall deltas - need to respect zoom-locks here... */
 			if ((v2d->keepzoom & V2D_LOCKZOOM_X) == 0)
 				RNA_float_set(op->ptr, "deltax", vzd->dx);
 			else
 				RNA_float_set(op->ptr, "deltax", 0);
-				
+
 			if ((v2d->keepzoom & V2D_LOCKZOOM_Y) == 0)
 				RNA_float_set(op->ptr, "deltay", vzd->dy);
 			else
 				RNA_float_set(op->ptr, "deltay", 0);
-			
+
 			/* free customdata */
 			view_zoomdrag_exit(C, op);
 			WM_cursor_modal_restore(CTX_wm_window(C));
-			
+
 			return OPERATOR_FINISHED;
 		}
 	}
@@ -1193,18 +1193,18 @@ static void VIEW2D_OT_zoom(wmOperatorType *ot)
 	ot->name = "Zoom 2D View";
 	ot->description = "Zoom in/out the view";
 	ot->idname = "VIEW2D_OT_zoom";
-	
+
 	/* api callbacks */
 	ot->exec = view_zoomdrag_exec;
 	ot->invoke = view_zoomdrag_invoke;
 	ot->modal = view_zoomdrag_modal;
 	ot->cancel = view_zoomdrag_cancel;
-	
+
 	ot->poll = view_zoom_poll;
-	
+
 	/* operator is repeatable */
 	ot->flag = OPTYPE_BLOCKING | OPTYPE_GRAB_CURSOR;
-	
+
 	/* rna - must keep these in sync with the other operators */
 	prop = RNA_def_float(ot->srna, "deltax", 0, -FLT_MAX, FLT_MAX, "Delta X", "", -FLT_MAX, FLT_MAX);
 	RNA_def_property_flag(prop, PROP_HIDDEN);
@@ -1225,7 +1225,7 @@ static void VIEW2D_OT_zoom(wmOperatorType *ot)
  * Currently, these key mappings are hardcoded, but it shouldn't be too important to
  * have custom keymappings for this...
  */
- 
+
 static int view_borderzoom_exec(bContext *C, wmOperator *op)
 {
 	ARegion *ar = CTX_wm_region(C);
@@ -1233,17 +1233,17 @@ static int view_borderzoom_exec(bContext *C, wmOperator *op)
 	rctf rect;
 	rctf cur_new = v2d->cur;
 	const int smooth_viewtx = WM_operator_smooth_viewtx_get(op);
-	
+
 	/* convert coordinates of rect to 'tot' rect coordinates */
 	WM_operator_properties_border_to_rctf(op, &rect);
 	UI_view2d_region_to_view_rctf(v2d, &rect, &rect);
-	
+
 	/* check if zooming in/out view */
 	const bool zoom_in = !RNA_boolean_get(op->ptr, "zoom_out");
-	
+
 	if (zoom_in) {
-		/* zoom in: 
-		 *	- 'cur' rect will be defined by the coordinates of the border region 
+		/* zoom in:
+		 *	- 'cur' rect will be defined by the coordinates of the border region
 		 *	- just set the 'cur' rect to have the same coordinates as the border region
 		 *	  if zoom is allowed to be changed
 		 */
@@ -1263,13 +1263,13 @@ static int view_borderzoom_exec(bContext *C, wmOperator *op)
 		 *	- calculate zoom factor, and adjust using center-point
 		 */
 		float zoom, center, size;
-		
+
 		/* TODO: is this zoom factor calculation valid? It seems to produce same results every time... */
 		if ((v2d->keepzoom & V2D_LOCKZOOM_X) == 0) {
 			size = BLI_rctf_size_x(&cur_new);
 			zoom = size / BLI_rctf_size_x(&rect);
 			center = BLI_rctf_cent_x(&cur_new);
-			
+
 			cur_new.xmin = center - (size * zoom);
 			cur_new.xmax = center + (size * zoom);
 		}
@@ -1277,16 +1277,16 @@ static int view_borderzoom_exec(bContext *C, wmOperator *op)
 			size = BLI_rctf_size_y(&cur_new);
 			zoom = size / BLI_rctf_size_y(&rect);
 			center = BLI_rctf_cent_y(&cur_new);
-			
+
 			cur_new.ymin = center - (size * zoom);
 			cur_new.ymax = center + (size * zoom);
 		}
 	}
-	
+
 	UI_view2d_smooth_view(C, ar, &cur_new, smooth_viewtx);
-	
+
 	return OPERATOR_FINISHED;
-} 
+}
 
 static void VIEW2D_OT_zoom_border(wmOperatorType *ot)
 {
@@ -1294,15 +1294,15 @@ static void VIEW2D_OT_zoom_border(wmOperatorType *ot)
 	ot->name = "Zoom to Border";
 	ot->description = "Zoom in the view to the nearest item contained in the border";
 	ot->idname = "VIEW2D_OT_zoom_border";
-	
+
 	/* api callbacks */
 	ot->invoke = WM_gesture_border_invoke;
 	ot->exec = view_borderzoom_exec;
 	ot->modal = WM_gesture_border_modal;
 	ot->cancel = WM_gesture_border_cancel;
-	
+
 	ot->poll = view_zoom_poll;
-	
+
 	/* rna */
 	WM_operator_properties_gesture_border_zoom(ot);
 }
@@ -1575,17 +1575,17 @@ static void VIEW2D_OT_smoothview(wmOperatorType *ot)
 typedef struct v2dScrollerMove {
 	View2D *v2d;            /* View2D data that this operation affects */
 	ARegion *ar;            /* region that the scroller is in */
-	
+
 	short scroller;         /* scroller that mouse is in ('h' or 'v') */
 	short zone; /* -1 is min zoomer, 0 is bar, 1 is max zoomer */             // XXX find some way to provide visual feedback of this (active color?)
-	
+
 	float fac;              /* view adjustment factor, based on size of region */
 	float fac_round;        /* for pixel rounding (avoid visible UI jitter) */
 	float delta;            /* amount moved by mouse on axis of interest */
-	
+
 	float scrollbarwidth;   /* width of the scrollbar itself, used for page up/down clicks */
 	int scrollbar_orig;      /* initial location of scrollbar x/y, mouse relative */
-	
+
 	int lastx, lasty;       /* previous mouse coordinates (in screen coordinates) for determining movement */
 } v2dScrollerMove;
 
@@ -1597,7 +1597,7 @@ typedef struct v2dScrollerMove {
  * \warning: The start of this struct must not change, so that it stays in sync with the 'real' version
  * For now, we don't need to have a separate (internal) header for structs like this...
  */
-struct View2DScrollers {	
+struct View2DScrollers {
 	/* focus bubbles */
 	int vert_min, vert_max; /* vertical scrollbar */
 	int hor_min, hor_max;   /* horizontal scrollbar */
@@ -1624,10 +1624,10 @@ enum {
 static short mouse_in_scroller_handle(int mouse, int sc_min, int sc_max, int sh_min, int sh_max)
 {
 	bool in_min, in_max, in_bar, out_min, out_max, in_view = 1;
-	
-	/* firstly, check if 
-	 *	- 'bubble' fills entire scroller 
-	 *	- 'bubble' completely out of view on either side 
+
+	/* firstly, check if
+	 *	- 'bubble' fills entire scroller
+	 *	- 'bubble' completely out of view on either side
 	 */
 	if ((sh_min <= sc_min) && (sh_max >= sc_max)) in_view = 0;
 	if (sh_min == sh_max) {
@@ -1638,12 +1638,12 @@ static short mouse_in_scroller_handle(int mouse, int sc_min, int sc_max, int sh_
 		if (sh_max <= sc_min) in_view = 0;
 		if (sh_min >= sc_max) in_view = 0;
 	}
-	
-	
+
+
 	if (in_view == 0) {
 		return SCROLLHANDLE_BAR;
 	}
-	
+
 	/* check if mouse is in or past either handle */
 	/* TODO: check if these extents are still valid or not */
 	in_max = ((mouse >= (sh_max - V2D_SCROLLER_HANDLE_SIZE)) && (mouse <= (sh_max + V2D_SCROLLER_HANDLE_SIZE)));
@@ -1651,7 +1651,7 @@ static short mouse_in_scroller_handle(int mouse, int sc_min, int sc_max, int sh_
 	in_bar = ((mouse < (sh_max - V2D_SCROLLER_HANDLE_SIZE)) && (mouse > (sh_min + V2D_SCROLLER_HANDLE_SIZE)));
 	out_min = mouse < (sh_min - V2D_SCROLLER_HANDLE_SIZE);
 	out_max = mouse > (sh_max + V2D_SCROLLER_HANDLE_SIZE);
-	
+
 	if (in_bar)
 		return SCROLLHANDLE_BAR;
 	else if (in_max)
@@ -1662,10 +1662,10 @@ static short mouse_in_scroller_handle(int mouse, int sc_min, int sc_max, int sh_
 		return SCROLLHANDLE_MIN_OUTSIDE;
 	else if (out_max)
 		return SCROLLHANDLE_MAX_OUTSIDE;
-	
+
 	/* unlikely to happen, though we just cover it in case */
 	return SCROLLHANDLE_BAR;
-} 
+}
 
 /* initialize customdata for scroller manipulation operator */
 static void scroller_activate_init(bContext *C, wmOperator *op, const wmEvent *event, short in_scroller)
@@ -1676,11 +1676,11 @@ static void scroller_activate_init(bContext *C, wmOperator *op, const wmEvent *e
 	View2D *v2d = &ar->v2d;
 	rctf tot_cur_union;
 	float mask_size;
-	
+
 	/* set custom-data for operator */
 	vsm = MEM_callocN(sizeof(v2dScrollerMove), "v2dScrollerMove");
 	op->customdata = vsm;
-	
+
 	/* set general data */
 	vsm->v2d = v2d;
 	vsm->ar = ar;
@@ -1689,7 +1689,7 @@ static void scroller_activate_init(bContext *C, wmOperator *op, const wmEvent *e
 	/* store mouse-coordinates, and convert mouse/screen coordinates to region coordinates */
 	vsm->lastx = event->x;
 	vsm->lasty = event->y;
-	/* 'zone' depends on where mouse is relative to bubble 
+	/* 'zone' depends on where mouse is relative to bubble
 	 *	- zooming must be allowed on this axis, otherwise, default to pan
 	 */
 	scrollers = UI_view2d_scrollers_calc(C, v2d, V2D_ARG_DUMMY, V2D_ARG_DUMMY, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
@@ -1711,7 +1711,7 @@ static void scroller_activate_init(bContext *C, wmOperator *op, const wmEvent *e
 		vsm->zone = mouse_in_scroller_handle(event->mval[0],
 		                                     v2d->hor.xmin, v2d->hor.xmax,
 		                                     scrollers->hor_min, scrollers->hor_max);
-		
+
 		if ((v2d->keepzoom & V2D_LOCKZOOM_X) && ELEM(vsm->zone, SCROLLHANDLE_MIN, SCROLLHANDLE_MAX)) {
 			/* default to scroll, as handles not usable */
 			vsm->zone = SCROLLHANDLE_BAR;
@@ -1724,7 +1724,7 @@ static void scroller_activate_init(bContext *C, wmOperator *op, const wmEvent *e
 		/* vertical scroller - calculate adjustment factor first */
 		mask_size = (float)BLI_rcti_size_y(&v2d->vert);
 		vsm->fac = BLI_rctf_size_y(&tot_cur_union) / mask_size;
-		
+
 		/* pixel rounding */
 		vsm->fac_round = (BLI_rctf_size_y(&v2d->cur)) / (float)(BLI_rcti_size_y(&ar->winrct) + 1);
 
@@ -1732,16 +1732,16 @@ static void scroller_activate_init(bContext *C, wmOperator *op, const wmEvent *e
 		vsm->zone = mouse_in_scroller_handle(event->mval[1],
 		                                     v2d->vert.ymin, v2d->vert.ymax,
 		                                     scrollers->vert_min, scrollers->vert_max);
-			
+
 		if ((v2d->keepzoom & V2D_LOCKZOOM_Y) && ELEM(vsm->zone, SCROLLHANDLE_MIN, SCROLLHANDLE_MAX)) {
 			/* default to scroll, as handles not usable */
 			vsm->zone = SCROLLHANDLE_BAR;
 		}
-		
+
 		vsm->scrollbarwidth = scrollers->vert_max - scrollers->vert_min;
 		vsm->scrollbar_orig = ((scrollers->vert_max + scrollers->vert_min) / 2) + ar->winrct.ymin;
 	}
-	
+
 	UI_view2d_scrollers_free(scrollers);
 	ED_region_tag_redraw_no_rebuild(ar);
 }
@@ -1753,10 +1753,10 @@ static void scroller_activate_exit(bContext *C, wmOperator *op)
 		v2dScrollerMove *vsm = op->customdata;
 
 		vsm->v2d->scroll_ui &= ~(V2D_SCROLL_H_ACTIVE | V2D_SCROLL_V_ACTIVE);
-		
+
 		MEM_freeN(op->customdata);
 		op->customdata = NULL;
-		
+
 		ED_region_tag_redraw_no_rebuild(CTX_wm_region(C));
 	}
 }
@@ -1772,13 +1772,13 @@ static void scroller_activate_apply(bContext *C, wmOperator *op)
 	v2dScrollerMove *vsm = op->customdata;
 	View2D *v2d = vsm->v2d;
 	float temp;
-	
+
 	/* calculate amount to move view by */
 	temp = vsm->fac * vsm->delta;
 
 	/* round to pixel */
 	temp = roundf(temp / vsm->fac_round) * vsm->fac_round;
-	
+
 	/* type of movement */
 	switch (vsm->zone) {
 		case SCROLLHANDLE_MIN:
@@ -1788,16 +1788,16 @@ static void scroller_activate_apply(bContext *C, wmOperator *op)
 			if ((vsm->scroller == 'v') && !(v2d->keepzoom & V2D_LOCKZOOM_Y))
 				v2d->cur.ymin -= temp;
 			break;
-			
+
 		case SCROLLHANDLE_MAX:
-			
+
 			/* only expand view on axis if zoom is allowed */
 			if ((vsm->scroller == 'h') && !(v2d->keepzoom & V2D_LOCKZOOM_X))
 				v2d->cur.xmax += temp;
 			if ((vsm->scroller == 'v') && !(v2d->keepzoom & V2D_LOCKZOOM_Y))
 				v2d->cur.ymax += temp;
 			break;
-			
+
 		case SCROLLHANDLE_MIN_OUTSIDE:
 		case SCROLLHANDLE_MAX_OUTSIDE:
 		case SCROLLHANDLE_BAR:
@@ -1812,12 +1812,12 @@ static void scroller_activate_apply(bContext *C, wmOperator *op)
 				v2d->cur.ymax += temp;
 			}
 			break;
-			
+
 	}
-	
+
 	/* validate that view is in valid configuration after this operation */
 	UI_view2d_curRect_validate(v2d);
-	
+
 	/* request updates to be done... */
 	ED_region_tag_redraw_no_rebuild(vsm->ar);
 	UI_view2d_sync(CTX_wm_screen(C), CTX_wm_area(C), v2d, V2D_LOCK_COPY);
@@ -1830,7 +1830,7 @@ static void scroller_activate_apply(bContext *C, wmOperator *op)
 static int scroller_activate_modal(bContext *C, wmOperator *op, const wmEvent *event)
 {
 	v2dScrollerMove *vsm = op->customdata;
-	
+
 	/* execute the events */
 	switch (event->type) {
 		case MOUSEMOVE:
@@ -1858,11 +1858,11 @@ static int scroller_activate_modal(bContext *C, wmOperator *op, const wmEvent *e
 						break;
 				}
 			}
-			
+
 			/* store previous coordinates */
 			vsm->lastx = event->x;
 			vsm->lasty = event->y;
-			
+
 			scroller_activate_apply(C, op);
 			break;
 		}
@@ -1875,12 +1875,12 @@ static int scroller_activate_modal(bContext *C, wmOperator *op, const wmEvent *e
 						vsm->delta = -vsm->scrollbarwidth * 0.8f;
 					else if (vsm->zone == SCROLLHANDLE_MAX_OUTSIDE)
 						vsm->delta = vsm->scrollbarwidth * 0.8f;
-					
+
 					scroller_activate_apply(C, op);
 					scroller_activate_exit(C, op);
 					return OPERATOR_FINISHED;
 				}
-				
+
 				/* otherwise, end the drag action  */
 				if (vsm->lastx || vsm->lasty) {
 					scroller_activate_exit(C, op);
@@ -1901,18 +1901,18 @@ static int scroller_activate_invoke(bContext *C, wmOperator *op, const wmEvent *
 	ARegion *ar = CTX_wm_region(C);
 	View2D *v2d = &ar->v2d;
 	short in_scroller = 0;
-		
+
 	/* check if mouse in scrollbars, if they're enabled */
 	in_scroller = UI_view2d_mouse_in_scrollers(ar, v2d, event->x, event->y);
-	
+
 	/* if in a scroller, init customdata then set modal handler which will catch mousedown to start doing useful stuff */
 	if (in_scroller) {
 		v2dScrollerMove *vsm;
-		
+
 		/* initialize customdata */
 		scroller_activate_init(C, op, event, in_scroller);
 		vsm = (v2dScrollerMove *)op->customdata;
-		
+
 		/* support for quick jump to location - gtk and qt do this on linux */
 		if (event->type == MIDDLEMOUSE) {
 			switch (vsm->scroller) {
@@ -1939,7 +1939,7 @@ static int scroller_activate_invoke(bContext *C, wmOperator *op, const wmEvent *
 				vsm->zone = SCROLLHANDLE_BAR;
 			}
 		}
-		
+
 		/* check if zone is inappropriate (i.e. 'bar' but panning is banned), so cannot continue */
 		if (vsm->zone == SCROLLHANDLE_BAR) {
 			if (((vsm->scroller == 'h') && (v2d->keepofs & V2D_LOCKOFS_X)) ||
@@ -1947,30 +1947,30 @@ static int scroller_activate_invoke(bContext *C, wmOperator *op, const wmEvent *
 			{
 				/* free customdata initialized */
 				scroller_activate_exit(C, op);
-				
+
 				/* can't catch this event for ourselves, so let it go to someone else? */
 				return OPERATOR_PASS_THROUGH;
 			}
 		}
-		
+
 		/* zone is also inappropriate if scroller is not visible... */
 		if (((vsm->scroller == 'h') && (v2d->scroll & (V2D_SCROLL_HORIZONTAL_FULLR))) ||
 		    ((vsm->scroller == 'v') && (v2d->scroll & (V2D_SCROLL_VERTICAL_FULLR))) )
 		{
 			/* free customdata initialized */
 			scroller_activate_exit(C, op);
-				
+
 			/* can't catch this event for ourselves, so let it go to someone else? */
 			/* XXX note: if handlers use mask rect to clip input, input will fail for this case */
 			return OPERATOR_PASS_THROUGH;
 		}
-		
+
 		/* activate the scroller */
 		if (vsm->scroller == 'h')
 			v2d->scroll_ui |= V2D_SCROLL_H_ACTIVE;
 		else
 			v2d->scroll_ui |= V2D_SCROLL_V_ACTIVE;
-		
+
 		/* still ok, so can add */
 		WM_event_add_modal_handler(C, op);
 		return OPERATOR_RUNNING_MODAL;
@@ -1991,7 +1991,7 @@ static void VIEW2D_OT_scroller_activate(wmOperatorType *ot)
 
 	/* flags */
 	ot->flag = OPTYPE_BLOCKING;
-	
+
 	/* api callbacks */
 	ot->invoke = scroller_activate_invoke;
 	ot->modal = scroller_activate_modal;
@@ -2017,7 +2017,7 @@ static int reset_exec(bContext *C, wmOperator *UNUSED(op))
 
 	v2d->cur.xmax = v2d->cur.xmin + winx;
 	v2d->cur.ymax = v2d->cur.ymin + winy;
-	
+
 	/* align */
 	if (v2d->align) {
 		/* posx and negx flags are mutually exclusive, so watch out */
@@ -2053,7 +2053,7 @@ static int reset_exec(bContext *C, wmOperator *UNUSED(op))
 	/* request updates to be done... */
 	ED_region_tag_redraw(ar);
 	UI_view2d_sync(CTX_wm_screen(C), CTX_wm_area(C), v2d, V2D_LOCK_COPY);
-	
+
 	UI_view2d_zoom_cache_reset();
 
 	return OPERATOR_FINISHED;
@@ -2065,27 +2065,27 @@ static void VIEW2D_OT_reset(wmOperatorType *ot)
 	ot->name = "Reset View";
 	ot->description = "Reset the view";
 	ot->idname = "VIEW2D_OT_reset";
-	
+
 	/* api callbacks */
 	ot->exec = reset_exec;
 	ot->poll = view2d_poll;
 }
- 
+
 /* ********************************************************* */
 /* Registration */
 
 void ED_operatortypes_view2d(void)
 {
 	WM_operatortype_append(VIEW2D_OT_pan);
-	
+
 	WM_operatortype_append(VIEW2D_OT_scroll_left);
 	WM_operatortype_append(VIEW2D_OT_scroll_right);
 	WM_operatortype_append(VIEW2D_OT_scroll_up);
 	WM_operatortype_append(VIEW2D_OT_scroll_down);
-	
+
 	WM_operatortype_append(VIEW2D_OT_zoom_in);
 	WM_operatortype_append(VIEW2D_OT_zoom_out);
-	
+
 	WM_operatortype_append(VIEW2D_OT_zoom);
 	WM_operatortype_append(VIEW2D_OT_zoom_border);
 
@@ -2094,7 +2094,7 @@ void ED_operatortypes_view2d(void)
 #endif
 
 	WM_operatortype_append(VIEW2D_OT_smoothview);
-	
+
 	WM_operatortype_append(VIEW2D_OT_scroller_activate);
 
 	WM_operatortype_append(VIEW2D_OT_reset);
@@ -2112,15 +2112,15 @@ void ED_keymap_view2d(wmKeyConfig *keyconf)
 	/* pan/scroll */
 	WM_keymap_add_item(keymap, "VIEW2D_OT_pan", MIDDLEMOUSE, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "VIEW2D_OT_pan", MIDDLEMOUSE, KM_PRESS, KM_SHIFT, 0);
-	
+
 	WM_keymap_add_item(keymap, "VIEW2D_OT_pan", MOUSEPAN, 0, 0, 0);
-	
+
 	WM_keymap_add_item(keymap, "VIEW2D_OT_scroll_right", WHEELDOWNMOUSE, KM_PRESS, KM_CTRL, 0);
 	WM_keymap_add_item(keymap, "VIEW2D_OT_scroll_left", WHEELUPMOUSE, KM_PRESS, KM_CTRL, 0);
-	
+
 	WM_keymap_add_item(keymap, "VIEW2D_OT_scroll_down", WHEELDOWNMOUSE, KM_PRESS, KM_SHIFT, 0);
 	WM_keymap_add_item(keymap, "VIEW2D_OT_scroll_up", WHEELUPMOUSE, KM_PRESS, KM_SHIFT, 0);
-	
+
 #ifdef WITH_INPUT_NDOF
 	WM_keymap_add_item(keymap, "VIEW2D_OT_ndof", NDOF_MOTION, 0, 0, 0);
 #endif
@@ -2131,7 +2131,7 @@ void ED_keymap_view2d(wmKeyConfig *keyconf)
 	WM_keymap_add_item(keymap, "VIEW2D_OT_zoom_out", PADMINUS, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "VIEW2D_OT_zoom_in", PADPLUSKEY, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "VIEW2D_OT_zoom", MOUSEPAN, 0, KM_CTRL, 0);
-	
+
 	WM_keymap_verify_item(keymap, "VIEW2D_OT_smoothview", TIMER1, KM_ANY, KM_ANY, 0);
 
 	/* scroll up/down - no modifiers, only when zoom fails */
@@ -2141,7 +2141,7 @@ void ED_keymap_view2d(wmKeyConfig *keyconf)
 	/* these may be necessary if vertical scroll is disallowed */
 	WM_keymap_add_item(keymap, "VIEW2D_OT_scroll_right", WHEELDOWNMOUSE, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "VIEW2D_OT_scroll_left", WHEELUPMOUSE, KM_PRESS, 0, 0);
-	
+
 	/* alternatives for page up/down to scroll */
 #if 0 // XXX disabled, since this causes conflicts with hotkeys in animation editors
 	/* scroll up/down may fall through to left/right */
@@ -2153,11 +2153,11 @@ void ED_keymap_view2d(wmKeyConfig *keyconf)
 	WM_keymap_add_item(keymap, "VIEW2D_OT_scroll_right", PAGEDOWNKEY, KM_PRESS, KM_SHIFT, 0);
 	WM_keymap_add_item(keymap, "VIEW2D_OT_scroll_left", PAGEUPKEY, KM_PRESS, KM_SHIFT, 0);
 #endif
-	
+
 	/* zoom - drag */
 	WM_keymap_add_item(keymap, "VIEW2D_OT_zoom", MIDDLEMOUSE, KM_PRESS, KM_CTRL, 0);
 	WM_keymap_add_item(keymap, "VIEW2D_OT_zoom", MOUSEZOOM, 0, 0, 0);
-	
+
 	/* borderzoom - drag */
 	WM_keymap_add_item(keymap, "VIEW2D_OT_zoom_border", BKEY, KM_PRESS, KM_SHIFT, 0);
 
@@ -2171,12 +2171,12 @@ void ED_keymap_view2d(wmKeyConfig *keyconf)
 	WM_keymap_add_item(keymap, "VIEW2D_OT_pan", MOUSEPAN, 0, 0, 0);
 	WM_keymap_add_item(keymap, "VIEW2D_OT_scroll_down", WHEELDOWNMOUSE, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "VIEW2D_OT_scroll_up", WHEELUPMOUSE, KM_PRESS, 0, 0);
-	
+
 	kmi = WM_keymap_add_item(keymap, "VIEW2D_OT_scroll_down", PAGEDOWNKEY, KM_PRESS, 0, 0);
 	RNA_boolean_set(kmi->ptr, "page", true);
 	kmi = WM_keymap_add_item(keymap, "VIEW2D_OT_scroll_up", PAGEUPKEY, KM_PRESS, 0, 0);
 	RNA_boolean_set(kmi->ptr, "page", true);
-	
+
 	WM_keymap_add_item(keymap, "VIEW2D_OT_zoom", MIDDLEMOUSE, KM_PRESS, KM_CTRL, 0);
 	WM_keymap_add_item(keymap, "VIEW2D_OT_zoom", MOUSEZOOM, 0, 0, 0);
 	WM_keymap_add_item(keymap, "VIEW2D_OT_zoom", MOUSEPAN, 0, KM_CTRL, 0);