Cleanup: strip trailing space in editors

7 files changed, 958 insertions, 958 deletions

diff --git a/source/blender/editors/space_nla/nla_buttons.c b/source/blender/editors/space_nla/nla_buttons.c
index c173aac1a26..a26e6b0280e 100644
--- a/source/blender/editors/space_nla/nla_buttons.c
+++ b/source/blender/editors/space_nla/nla_buttons.c
@@ -87,27 +87,27 @@ bool nla_panel_context(const bContext *C, PointerRNA *adt_ptr, PointerRNA *nlt_p
 	ListBase anim_data = {NULL, NULL};
 	short found = 0; /* not bool, since we need to indicate "found but not ideal" status */
 	int filter;
-	
-	/* for now, only draw if we could init the anim-context info (necessary for all animation-related tools) 
+
+	/* for now, only draw if we could init the anim-context info (necessary for all animation-related tools)
 	 * to work correctly is able to be correctly retrieved. There's no point showing empty panels?
 	 */
-	if (ANIM_animdata_get_context(C, &ac) == 0) 
+	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return false;
-	
-	/* extract list of active channel(s), of which we should only take the first one 
+
+	/* extract list of active channel(s), of which we should only take the first one
 	 *	- we need the channels flag to get the active AnimData block when there are no NLA Tracks
 	 */
 	// XXX: double-check active!
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_ACTIVE | ANIMFILTER_LIST_CHANNELS);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		switch (ale->type) {
 			case ANIMTYPE_NLATRACK: /* NLA Track - The primary data type which should get caught */
 			{
 				NlaTrack *nlt = (NlaTrack *)ale->data;
 				AnimData *adt = ale->adt;
-				
+
 				/* found it, now set the pointers */
 				if (adt_ptr) {
 					/* AnimData pointer */
@@ -122,7 +122,7 @@ bool nla_panel_context(const bContext *C, PointerRNA *adt_ptr, PointerRNA *nlt_p
 					NlaStrip *strip = BKE_nlastrip_find_active(nlt);
 					RNA_pointer_create(ale->id, &RNA_NlaStrip, strip, strip_ptr);
 				}
-				
+
 				found = 1;
 				break;
 			}
@@ -149,7 +149,7 @@ bool nla_panel_context(const bContext *C, PointerRNA *adt_ptr, PointerRNA *nlt_p
 				/* for these channels, we only do AnimData */
 				if (ale->adt && adt_ptr) {
 					ID *id;
-					
+
 					if ((ale->data == NULL) || (ale->type == ANIMTYPE_OBJECT)) {
 						/* ale->data is not an ID block! */
 						id = ale->id;
@@ -158,13 +158,13 @@ bool nla_panel_context(const bContext *C, PointerRNA *adt_ptr, PointerRNA *nlt_p
 						/* ale->data is always the proper ID block we need, but ale->id may not be (i.e. for textures) */
 						id = (ID *)ale->data;
 					}
-					
+
 					/* AnimData pointer */
 					if (adt_ptr) {
 						RNA_pointer_create(id, &RNA_AnimData, ale->adt, adt_ptr);
 					}
-					
-					/* set found status to -1, since setting to 1 would break the loop 
+
+					/* set found status to -1, since setting to 1 would break the loop
 					 * and potentially skip an active NLA-Track in some cases...
 					 */
 					found = -1;
@@ -172,14 +172,14 @@ bool nla_panel_context(const bContext *C, PointerRNA *adt_ptr, PointerRNA *nlt_p
 				break;
 			}
 		}
-		
+
 		if (found > 0)
 			break;
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	return (found != 0);
 }
 
@@ -212,12 +212,12 @@ static int nla_strip_actclip_panel_poll(const bContext *C, PanelType *UNUSED(pt)
 {
 	PointerRNA ptr;
 	NlaStrip *strip;
-	
+
 	if (!nla_panel_context(C, NULL, NULL, &ptr))
 		return 0;
 	if (ptr.data == NULL)
 		return 0;
-	
+
 	strip = ptr.data;
 	return (strip->type == NLASTRIP_TYPE_CLIP);
 }
@@ -226,17 +226,17 @@ static int nla_strip_eval_panel_poll(const bContext *C, PanelType *UNUSED(pt))
 {
 	PointerRNA ptr;
 	NlaStrip *strip;
-	
+
 	if (!nla_panel_context(C, NULL, NULL, &ptr))
 		return 0;
 	if (ptr.data == NULL)
 		return 0;
-	
+
 	strip = ptr.data;
-	
+
 	if (strip->type == NLASTRIP_TYPE_SOUND)
 		return 0;
-		
+
 	return 1;
 }
 
@@ -250,53 +250,53 @@ static void nla_panel_animdata(const bContext *C, Panel *pa)
 	uiLayout *layout = pa->layout;
 	uiLayout *row;
 	uiBlock *block;
-	
+
 	/* check context and also validity of pointer */
 	if (!nla_panel_context(C, &adt_ptr, NULL, NULL))
 		return;
 
 	/* adt = adt_ptr.data; */
-	
+
 	block = uiLayoutGetBlock(layout);
 	UI_block_func_handle_set(block, do_nla_region_buttons, NULL);
-	
+
 	/* AnimData Source Properties ----------------------------------- */
-	
-	/* icon + id-block name of block where AnimData came from to prevent 
+
+	/* icon + id-block name of block where AnimData came from to prevent
 	 * accidentally changing the properties of the wrong action
 	 */
 	if (adt_ptr.id.data) {
 		ID *id = adt_ptr.id.data;
 		PointerRNA id_ptr;
-		
+
 		RNA_id_pointer_create(id, &id_ptr);
-		
+
 		/* ID-block name > AnimData */
 		row = uiLayoutRow(layout, true);
 		uiLayoutSetAlignment(row, UI_LAYOUT_ALIGN_LEFT);
-		
+
 		uiItemL(row, id->name + 2, RNA_struct_ui_icon(id_ptr.type));  /* id-block (src) */
 		uiItemL(row, "", VICO_SMALL_TRI_RIGHT_VEC);                   /* expander */
 		uiItemL(row, IFACE_("Animation Data"), ICON_ANIM_DATA);       /* animdata */
-		
+
 		uiItemS(layout);
 	}
-	
+
 	/* Active Action Properties ------------------------------------- */
 	/* action */
 	row = uiLayoutRow(layout, true);
 	uiTemplateID(
 	        row, (bContext *)C, &adt_ptr, "action",
 	        "ACTION_OT_new", NULL, "NLA_OT_action_unlink", UI_TEMPLATE_ID_FILTER_ALL);
-	
+
 	/* extrapolation */
 	row = uiLayoutRow(layout, true);
 	uiItemR(row, &adt_ptr, "action_extrapolation", 0, NULL, ICON_NONE);
-	
+
 	/* blending */
 	row = uiLayoutRow(layout, true);
 	uiItemR(row, &adt_ptr, "action_blend_type", 0, NULL, ICON_NONE);
-		
+
 	/* influence */
 	row = uiLayoutRow(layout, true);
 	uiItemR(row, &adt_ptr, "action_influence", 0, NULL, ICON_NONE);
@@ -309,14 +309,14 @@ static void nla_panel_track(const bContext *C, Panel *pa)
 	uiLayout *layout = pa->layout;
 	uiLayout *row;
 	uiBlock *block;
-	
+
 	/* check context and also validity of pointer */
 	if (!nla_panel_context(C, NULL, &nlt_ptr, NULL))
 		return;
-	
+
 	block = uiLayoutGetBlock(layout);
 	UI_block_func_handle_set(block, do_nla_region_buttons, NULL);
-	
+
 	/* Info - Active NLA-Context:Track ----------------------  */
 	row = uiLayoutRow(layout, true);
 	uiItemR(row, &nlt_ptr, "name", 0, NULL, ICON_NLA);
@@ -330,41 +330,41 @@ static void nla_panel_properties(const bContext *C, Panel *pa)
 	uiLayout *column, *row, *sub;
 	uiBlock *block;
 	short showEvalProps = 1;
-	
+
 	if (!nla_panel_context(C, NULL, NULL, &strip_ptr))
 		return;
-	
+
 	block = uiLayoutGetBlock(layout);
 	UI_block_func_handle_set(block, do_nla_region_buttons, NULL);
-	
+
 	/* Strip Properties ------------------------------------- */
 	/* strip type */
 	row = uiLayoutColumn(layout, true);
 	uiItemR(row, &strip_ptr, "name", 0, NULL, ICON_NLA);     // XXX icon?
 	uiItemR(row, &strip_ptr, "type", 0, NULL, ICON_NONE);
-	
+
 	/* strip extents */
 	column = uiLayoutColumn(layout, true);
 	uiItemL(column, IFACE_("Strip Extents:"), ICON_NONE);
 	uiItemR(column, &strip_ptr, "frame_start", 0, NULL, ICON_NONE);
 	uiItemR(column, &strip_ptr, "frame_end", 0, NULL, ICON_NONE);
-	
+
 	/* Evaluation-Related Strip Properties ------------------ */
-	
+
 	/* sound properties strips don't have these settings */
 	if (RNA_enum_get(&strip_ptr, "type") == NLASTRIP_TYPE_SOUND)
 		showEvalProps = 0;
-	
+
 	/* only show if allowed to... */
 	if (showEvalProps) {
 		/* extrapolation */
 		row = uiLayoutRow(layout, true);
 		uiItemR(row, &strip_ptr, "extrapolation", 0, NULL, ICON_NONE);
-		
+
 		/* blending */
 		row = uiLayoutRow(layout, true);
 		uiItemR(row, &strip_ptr, "blend_type", 0, NULL, ICON_NONE);
-			
+
 		/* blend in/out + autoblending
 		 *	- blend in/out can only be set when autoblending is off
 		 */
@@ -376,7 +376,7 @@ static void nla_panel_properties(const bContext *C, Panel *pa)
 		uiLayoutSetActive(sub, RNA_boolean_get(&strip_ptr, "use_auto_blend") == false);
 		uiItemR(sub, &strip_ptr, "blend_in", 0, NULL, ICON_NONE);
 		uiItemR(sub, &strip_ptr, "blend_out", 0, NULL, ICON_NONE);
-			
+
 		/* settings */
 		column = uiLayoutColumn(layout, true);
 		uiLayoutSetActive(column, !(RNA_boolean_get(&strip_ptr, "use_animated_influence") || RNA_boolean_get(&strip_ptr, "use_animated_time")));
@@ -398,27 +398,27 @@ static void nla_panel_actclip(const bContext *C, Panel *pa)
 	/* check context and also validity of pointer */
 	if (!nla_panel_context(C, NULL, NULL, &strip_ptr))
 		return;
-	
+
 	block = uiLayoutGetBlock(layout);
 	UI_block_func_handle_set(block, do_nla_region_buttons, NULL);
-		
+
 	/* Strip Properties ------------------------------------- */
 	/* action pointer */
 	row = uiLayoutRow(layout, true);
 	uiItemR(row, &strip_ptr, "action", 0, NULL, ICON_ACTION);
-		
+
 	/* action extents */
 	// XXX custom names were used here (to avoid the prefixes)... probably not necessary in future?
 	column = uiLayoutColumn(layout, true);
 	uiItemL(column, IFACE_("Action Extents:"), ICON_NONE);
 	uiItemR(column, &strip_ptr, "action_frame_start", 0, IFACE_("Start Frame"), ICON_NONE);
 	uiItemR(column, &strip_ptr, "action_frame_end", 0, IFACE_("End Frame"), ICON_NONE);
-	
+
 	// XXX: this layout may actually be too abstract and confusing, and may be better using standard column layout
 	row = uiLayoutRow(layout, false);
 	uiItemR(row, &strip_ptr, "use_sync_length", 0, IFACE_("Sync Length"), ICON_NONE);
 	uiItemO(row, IFACE_("Now"), ICON_FILE_REFRESH, "NLA_OT_action_sync_length");
-		
+
 	/* action usage */
 	column = uiLayoutColumn(layout, true);
 	uiLayoutSetActive(column, RNA_boolean_get(&strip_ptr, "use_animated_time") == false);
@@ -438,13 +438,13 @@ static void nla_panel_evaluation(const bContext *C, Panel *pa)
 	/* check context and also validity of pointer */
 	if (!nla_panel_context(C, NULL, NULL, &strip_ptr))
 		return;
-		
+
 	block = uiLayoutGetBlock(layout);
 	UI_block_func_handle_set(block, do_nla_region_buttons, NULL);
-		
+
 	col = uiLayoutColumn(layout, true);
 	uiItemR(col, &strip_ptr, "use_animated_influence", 0, NULL, ICON_NONE);
-	
+
 	sub = uiLayoutColumn(col, true);
 	uiLayoutSetEnabled(sub, RNA_boolean_get(&strip_ptr, "use_animated_influence"));
 	uiItemR(sub, &strip_ptr, "influence", 0, NULL, ICON_NONE);
@@ -472,28 +472,28 @@ static void nla_panel_modifiers(const bContext *C, Panel *pa)
 	if (!nla_panel_context(C, NULL, NULL, &strip_ptr))
 		return;
 	strip = strip_ptr.data;
-		
+
 	block = uiLayoutGetBlock(pa->layout);
 	UI_block_func_handle_set(block, do_nla_region_buttons, NULL);
-	
+
 	/* 'add modifier' button at top of panel */
 	{
 		row = uiLayoutRow(pa->layout, false);
 		block = uiLayoutGetBlock(row);
-		
+
 		// FIXME: we need to set the only-active property so that this will only add modifiers for the active strip (not all selected)
 		uiItemMenuEnumO(row, (bContext *)C, "NLA_OT_fmodifier_add", "type", IFACE_("Add Modifier"), ICON_NONE);
-		
+
 		/* copy/paste (as sub-row) */
 		row = uiLayoutRow(row, true);
 		uiItemO(row, "", ICON_COPYDOWN, "NLA_OT_fmodifier_copy");
 		uiItemO(row, "", ICON_PASTEDOWN, "NLA_OT_fmodifier_paste");
 	}
-	
+
 	/* draw each modifier */
 	for (fcm = strip->modifiers.first; fcm; fcm = fcm->next) {
 		col = uiLayoutColumn(pa->layout, true);
-		
+
 		ANIM_uiTemplate_fmodifier_draw(col, strip_ptr.id.data, &strip->modifiers, fcm);
 	}
 }
@@ -565,7 +565,7 @@ static int nla_properties_toggle_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	ScrArea *sa = CTX_wm_area(C);
 	ARegion *ar = nla_has_buttons_region(sa);
-	
+
 	if (ar)
 		ED_region_toggle_hidden(C, ar);
 
@@ -577,7 +577,7 @@ void NLA_OT_properties(wmOperatorType *ot)
 	ot->name = "Properties";
 	ot->idname = "NLA_OT_properties";
 	ot->description = "Toggle the properties region visibility";
-	
+
 	ot->exec = nla_properties_toggle_exec;
 	ot->poll = ED_operator_nla_active;
 
diff --git a/source/blender/editors/space_nla/nla_channels.c b/source/blender/editors/space_nla/nla_channels.c
index 9ca52764b24..8fdba4ce60d 100644
--- a/source/blender/editors/space_nla/nla_channels.c
+++ b/source/blender/editors/space_nla/nla_channels.c
@@ -79,26 +79,26 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	View2D *v2d = &ac->ar->v2d;
 	int notifierFlags = 0;
-	
+
 	/* get the channel that was clicked on */
 	/* filter channels */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_LIST_CHANNELS);
 	ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
-	
+
 	/* get channel from index */
 	ale = BLI_findlink(&anim_data, channel_index);
 	if (ale == NULL) {
 		/* channel not found */
 		if (G.debug & G_DEBUG)
 			printf("Error: animation channel (index = %d) not found in mouse_anim_channels()\n", channel_index);
-		
+
 		ANIM_animdata_freelist(&anim_data);
 		return 0;
 	}
-	
+
 	/* action to take depends on what channel we've got */
 	// WARNING: must keep this in sync with the equivalent function in anim_channels_edit.c
 	switch (ale->type) {
@@ -106,7 +106,7 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 		{
 			Scene *sce = (Scene *)ale->data;
 			AnimData *adt = sce->adt;
-			
+
 			/* set selection status */
 			if (selectmode == SELECT_INVERT) {
 				/* swap select */
@@ -117,7 +117,7 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 				sce->flag |= SCE_DS_SELECTED;
 				if (adt) adt->flag |= ADT_UI_SELECTED;
 			}
-			
+
 			notifierFlags |= (ND_ANIMCHAN | NA_SELECTED);
 			break;
 		}
@@ -128,19 +128,19 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 			Base *base = (Base *)ale->data;
 			Object *ob = base->object;
 			AnimData *adt = ob->adt;
-			
+
 			if (nlaedit_is_tweakmode_on(ac) == 0 && (ob->restrictflag & OB_RESTRICT_SELECT) == 0) {
 				/* set selection status */
 				if (selectmode == SELECT_INVERT) {
 					/* swap select */
 					base->flag ^= SELECT;
 					ob->flag = base->flag;
-					
+
 					if (adt) adt->flag ^= ADT_UI_SELECTED;
 				}
 				else {
 					Base *b;
-					
+
 					/* deselect all */
 					/* TODO: should this deselect all other types of channels too? */
 					for (b = sce->base.first; b; b = b->next) {
@@ -148,19 +148,19 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 						b->object->flag = b->flag;
 						if (b->object->adt) b->object->adt->flag &= ~(ADT_UI_SELECTED | ADT_UI_ACTIVE);
 					}
-					
+
 					/* select object now */
 					base->flag |= SELECT;
 					ob->flag |= SELECT;
 					if (adt) adt->flag |= ADT_UI_SELECTED;
 				}
-				
+
 				/* change active object - regardless of whether it is now selected [T37883] */
 				ED_base_object_activate(C, base); /* adds notifier */
-				
+
 				if ((adt) && (adt->flag & ADT_UI_SELECTED))
 					adt->flag |= ADT_UI_ACTIVE;
-				
+
 				/* notifiers - channel was selected */
 				notifierFlags |= (ND_ANIMCHAN | NA_SELECTED);
 			}
@@ -197,12 +197,12 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 					ANIM_deselect_anim_channels(ac, ac->data, ac->datatype, 0, ACHANNEL_SETFLAG_CLEAR);
 					ale->adt->flag |= ADT_UI_SELECTED;
 				}
-				
+
 				/* set active? */
 				if ((ale->adt) && (ale->adt->flag & ADT_UI_SELECTED))
 					ale->adt->flag |= ADT_UI_ACTIVE;
 			}
-			
+
 			notifierFlags |= (ND_ANIMCHAN | NA_SELECTED);
 			break;
 		}
@@ -211,7 +211,7 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 			NlaTrack *nlt = (NlaTrack *)ale->data;
 			AnimData *adt = ale->adt;
 			short offset;
-			
+
 			/* offset for start of channel (on LHS of channel-list) */
 			if (ale->id) {
 				/* special exception for materials and particles */
@@ -222,25 +222,25 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 			}
 			else
 				offset = 0;
-			
+
 			if (x >= (v2d->cur.xmax - NLACHANNEL_BUTTON_WIDTH)) {
 				/* toggle protection (only if there's a toggle there) */
 				nlt->flag ^= NLATRACK_PROTECTED;
-				
+
 				/* notifier flags - channel was edited */
 				notifierFlags |= (ND_ANIMCHAN | NA_EDITED);
 			}
 			else if (x >= (v2d->cur.xmax - 2 * NLACHANNEL_BUTTON_WIDTH)) {
 				/* toggle mute */
 				nlt->flag ^= NLATRACK_MUTED;
-				
+
 				/* notifier flags - channel was edited */
 				notifierFlags |= (ND_ANIMCHAN | NA_EDITED);
 			}
 			else if (x <= ((NLACHANNEL_BUTTON_WIDTH * 2) + offset)) {
 				/* toggle 'solo' */
 				BKE_nlatrack_solo_toggle(adt, nlt);
-				
+
 				/* notifier flags - channel was edited */
 				notifierFlags |= (ND_ANIMCHAN | NA_EDITED);
 			}
@@ -255,11 +255,11 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 					ANIM_deselect_anim_channels(ac, ac->data, ac->datatype, 0, ACHANNEL_SETFLAG_CLEAR);
 					nlt->flag |= NLATRACK_SELECTED;
 				}
-				
+
 				/* if NLA-Track is selected now, make NLA-Track the 'active' one in the visible list */
 				if (nlt->flag & NLATRACK_SELECTED)
 					ANIM_set_active_channel(ac, ac->data, ac->datatype, filter, nlt, ANIMTYPE_NLATRACK);
-					
+
 				/* notifier flags - channel was selected */
 				notifierFlags |= (ND_ANIMCHAN | NA_SELECTED);
 			}
@@ -268,7 +268,7 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 		case ANIMTYPE_NLAACTION:
 		{
 			AnimData *adt = BKE_animdata_from_id(ale->id);
-			
+
 			/* button region... */
 			if (x >= (v2d->cur.xmax - NLACHANNEL_BUTTON_WIDTH)) {
 				if (nlaedit_is_tweakmode_on(ac) == 0) {
@@ -281,13 +281,13 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 					/* when in tweakmode, this button becomes the toggle for mapped editing */
 					adt->flag ^= ADT_NLA_EDIT_NOMAP;
 				}
-				
+
 				/* changes to NLA-Action occurred */
 				notifierFlags |= ND_NLA_ACTCHANGE;
 			}
 			/* OR rest of name... */
 			else {
-				/* NOTE: rest of NLA-Action name doubles for operating on the AnimData block 
+				/* NOTE: rest of NLA-Action name doubles for operating on the AnimData block
 				 * - this is useful when there's no clear divider, and makes more sense in
 				 *   the case of users trying to use this to change actions
 				 * - in tweakmode, clicking here gets us out of tweakmode, as changing selection
@@ -298,7 +298,7 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 				if (nlaedit_is_tweakmode_on(ac)) {
 					/* exit tweakmode immediately */
 					nlaedit_disable_tweakmode(ac, true);
-					
+
 					/* changes to NLA-Action occurred */
 					notifierFlags |= ND_NLA_ACTCHANGE;
 				}
@@ -313,11 +313,11 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 						ANIM_deselect_anim_channels(ac, ac->data, ac->datatype, 0, ACHANNEL_SETFLAG_CLEAR);
 						adt->flag |= ADT_UI_SELECTED;
 					}
-					
+
 					/* set active? */
 					if (adt->flag & ADT_UI_SELECTED)
 						adt->flag |= ADT_UI_ACTIVE;
-					
+
 					notifierFlags |= (ND_ANIMCHAN | NA_SELECTED);
 				}
 			}
@@ -328,10 +328,10 @@ static int mouse_nla_channels(bContext *C, bAnimContext *ac, float x, int channe
 				printf("Error: Invalid channel type in mouse_nla_channels()\n");
 			break;
 	}
-	
+
 	/* free channels */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* return the notifier-flags set */
 	return notifierFlags;
 }
@@ -349,55 +349,55 @@ static int nlachannels_mouseclick_invoke(bContext *C, wmOperator *op, const wmEv
 	int notifierFlags = 0;
 	short selectmode;
 	float x, y;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get useful pointers from animation context data */
 	snla = (SpaceNla *)ac.sl;
 	ar = ac.ar;
 	v2d = &ar->v2d;
-	
+
 	/* select mode is either replace (deselect all, then add) or add/extend */
 	if (RNA_boolean_get(op->ptr, "extend"))
 		selectmode = SELECT_INVERT;
 	else
 		selectmode = SELECT_REPLACE;
-	
-	/* figure out which channel user clicked in 
+
+	/* figure out which channel user clicked in
 	 * Note: although channels technically start at y= NLACHANNEL_FIRST, we need to adjust by half a channel's height
 	 *		so that the tops of channels get caught ok. Since NLACHANNEL_FIRST is really NLACHANNEL_HEIGHT, we simply use
 	 *		NLACHANNEL_HEIGHT_HALF.
 	 */
 	UI_view2d_region_to_view(v2d, event->mval[0], event->mval[1], &x, &y);
 	UI_view2d_listview_view_to_cell(v2d, NLACHANNEL_NAMEWIDTH, NLACHANNEL_STEP(snla), 0, (float)NLACHANNEL_HEIGHT_HALF(snla), x, y, NULL, &channel_index);
-	
+
 	/* handle mouse-click in the relevant channel then */
 	notifierFlags = mouse_nla_channels(C, &ac, x, channel_index, selectmode);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | notifierFlags, NULL);
-	
+
 	return OPERATOR_FINISHED;
 }
- 
+
 void NLA_OT_channels_click(wmOperatorType *ot)
 {
 	PropertyRNA *prop;
-	
+
 	/* identifiers */
 	ot->name = "Mouse Click on NLA Channels";
 	ot->idname = "NLA_OT_channels_click";
 	ot->description = "Handle clicks to select NLA channels";
-	
+
 	/* api callbacks */
 	ot->invoke = nlachannels_mouseclick_invoke;
 	ot->poll = ED_operator_nla_active;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_UNDO;
-	
+
 	/* props */
 	prop = RNA_def_boolean(ot->srna, "extend", 0, "Extend Select", ""); // SHIFTKEY
 	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
@@ -413,15 +413,15 @@ static int nlachannels_pushdown_exec(bContext *C, wmOperator *op)
 	bAnimContext ac;
 	AnimData *adt = NULL;
 	int channel_index = RNA_int_get(op->ptr, "channel_index");
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get anim-channel to use (or more specifically, the animdata block behind it) */
 	if (channel_index == -1) {
 		PointerRNA adt_ptr = {{NULL}};
-		
+
 		/* active animdata block */
 		if (nla_panel_context(C, &adt_ptr, NULL, NULL) == 0 || (adt_ptr.data == NULL)) {
 			BKE_report(op->reports, RPT_ERROR, "No active AnimData block to use "
@@ -437,11 +437,11 @@ static int nlachannels_pushdown_exec(bContext *C, wmOperator *op)
 		ListBase anim_data = {NULL, NULL};
 		bAnimListElem *ale;
 		int filter;
-		
+
 		/* filter channels */
 		filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_LIST_CHANNELS);
 		ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-		
+
 		/* get channel from index */
 		ale = BLI_findlink(&anim_data, channel_index);
 		if (ale == NULL) {
@@ -454,14 +454,14 @@ static int nlachannels_pushdown_exec(bContext *C, wmOperator *op)
 			ANIM_animdata_freelist(&anim_data);
 			return OPERATOR_CANCELLED;
 		}
-		
+
 		/* grab AnimData from the channel */
 		adt = ale->adt;
-		
+
 		/* we don't need anything here anymore, so free it all */
 		ANIM_animdata_freelist(&anim_data);
 	}
-	
+
 	/* double-check that we are free to push down here... */
 	if (adt == NULL) {
 		BKE_report(op->reports, RPT_WARNING, "Internal Error - AnimData block is not valid");
@@ -480,7 +480,7 @@ static int nlachannels_pushdown_exec(bContext *C, wmOperator *op)
 		/* 'push-down' action - only usable when not in TweakMode */
 		BKE_nla_action_pushdown(adt);
 	}
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA_ACTCHANGE, NULL);
 	return OPERATOR_FINISHED;
@@ -492,14 +492,14 @@ void NLA_OT_action_pushdown(wmOperatorType *ot)
 	ot->name = "Push Down Action";
 	ot->idname = "NLA_OT_action_pushdown";
 	ot->description = "Push action down onto the top of the NLA stack as a new strip";
-	
+
 	/* callbacks */
 	ot->exec = nlachannels_pushdown_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-	
+
 	/* properties */
 	ot->prop = RNA_def_int(ot->srna, "channel_index", -1, -1, INT_MAX, "Channel Index",
 	                       "Index of NLA action channel to perform pushdown operation on",
@@ -514,7 +514,7 @@ static int nla_action_unlink_poll(bContext *C)
 	if (ED_operator_nla_active(C)) {
 		return nla_panel_context(C, NULL, NULL, NULL);
 	}
-	
+
 	/* something failed... */
 	return false;
 }
@@ -523,22 +523,22 @@ static int nla_action_unlink_exec(bContext *C, wmOperator *op)
 {
 	PointerRNA adt_ptr;
 	AnimData *adt;
-	
+
 	/* check context and also validity of pointer */
 	if (!nla_panel_context(C, &adt_ptr, NULL, NULL))
 		return OPERATOR_CANCELLED;
-	
+
 	/* get animdata */
 	adt = adt_ptr.data;
 	if (adt == NULL)
 		return OPERATOR_CANCELLED;
-	
+
 	/* do unlinking */
 	if (adt && adt->action) {
 		bool force_delete = RNA_boolean_get(op->ptr, "force_delete");
 		ED_animedit_unlink_action(C, adt_ptr.id.data, adt, adt->action, op->reports, force_delete);
 	}
-	
+
 	return OPERATOR_FINISHED;
 }
 
@@ -552,19 +552,19 @@ static int nla_action_unlink_invoke(bContext *C, wmOperator *op, const wmEvent *
 void NLA_OT_action_unlink(wmOperatorType *ot)
 {
 	PropertyRNA *prop;
-	
+
 	/* identifiers */
 	ot->name = "Unlink Action";
 	ot->idname = "NLA_OT_action_unlink";
 	ot->description = "Unlink this action from the active action slot (and/or exit Tweak Mode)";
-	
+
 	/* callbacks */
 	ot->invoke = nla_action_unlink_invoke;
 	ot->exec = nla_action_unlink_exec;
 	ot->poll = nla_action_unlink_poll;
-	
+
 	/* properties */
-	prop = RNA_def_boolean(ot->srna, "force_delete", false, "Force Delete", 
+	prop = RNA_def_boolean(ot->srna, "force_delete", false, "Force Delete",
 	                       "Clear Fake User and remove copy stashed in this datablock's NLA stack");
 	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
 }
@@ -580,17 +580,17 @@ bool nlaedit_add_tracks_existing(bAnimContext *ac, bool above_sel)
 	int filter;
 	AnimData *lastAdt = NULL;
 	bool added = false;
-	
+
 	/* get a list of the (selected) NLA Tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_SEL | ANIMFILTER_NODUPLIS);
 	ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
-	
+
 	/* add tracks... */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		if (ale->type == ANIMTYPE_NLATRACK) {
 			NlaTrack *nlt = (NlaTrack *)ale->data;
 			AnimData *adt = ale->adt;
-			
+
 			/* check if just adding a new track above this one,
 			 * or whether we're adding a new one to the top of the stack that this one belongs to
 			 */
@@ -607,10 +607,10 @@ bool nlaedit_add_tracks_existing(bAnimContext *ac, bool above_sel)
 			}
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	return added;
 }
 
@@ -621,18 +621,18 @@ bool nlaedit_add_tracks_empty(bAnimContext *ac)
 	bAnimListElem *ale;
 	int filter;
 	bool added = false;
-	
+
 	/* get a list of the selected AnimData blocks in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_ANIMDATA | ANIMFILTER_SEL | ANIMFILTER_NODUPLIS);
 	ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
-	
+
 	/* check if selected AnimData blocks are empty, and add tracks if so... */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		AnimData *adt = ale->adt;
-		
+
 		/* sanity check */
 		BLI_assert(adt->flag & ADT_UI_SELECTED);
-		
+
 		/* ensure it is empty */
 		if (BLI_listbase_is_empty(&adt->nla_tracks)) {
 			/* add new track to this AnimData block then */
@@ -640,10 +640,10 @@ bool nlaedit_add_tracks_empty(bAnimContext *ac)
 			added = true;
 		}
 	}
-	
+
 	/* cleanup */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	return added;
 }
 
@@ -654,20 +654,20 @@ static int nlaedit_add_tracks_exec(bContext *C, wmOperator *op)
 	bAnimContext ac;
 	bool above_sel = RNA_boolean_get(op->ptr, "above_selected");
 	bool op_done = false;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* perform adding in two passes - existing first so that we don't double up for empty */
 	op_done |= nlaedit_add_tracks_existing(&ac, above_sel);
 	op_done |= nlaedit_add_tracks_empty(&ac);
-	
+
 	/* done? */
 	if (op_done) {
 		/* set notifier that things have changed */
 		WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-		
+
 		/* done */
 		return OPERATOR_FINISHED;
 	}
@@ -675,7 +675,7 @@ static int nlaedit_add_tracks_exec(bContext *C, wmOperator *op)
 		/* failed to add any tracks */
 		BKE_report(op->reports, RPT_WARNING,
 		           "Select an existing NLA Track or an empty action line first");
-		
+
 		/* not done */
 		return OPERATOR_CANCELLED;
 	}
@@ -687,14 +687,14 @@ void NLA_OT_tracks_add(wmOperatorType *ot)
 	ot->name = "Add Tracks";
 	ot->idname = "NLA_OT_tracks_add";
 	ot->description = "Add NLA-Tracks above/after the selected tracks";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_add_tracks_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-	
+
 	/* properties */
 	RNA_def_boolean(ot->srna, "above_selected", 0, "Above Selected", "Add a new NLA Track above every existing selected one");
 }
@@ -705,42 +705,42 @@ void NLA_OT_tracks_add(wmOperatorType *ot)
 static int nlaedit_delete_tracks_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the AnimData blocks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_SEL | ANIMFILTER_NODUPLIS);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* delete tracks */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		if (ale->type == ANIMTYPE_NLATRACK) {
 			NlaTrack *nlt = (NlaTrack *)ale->data;
 			AnimData *adt = ale->adt;
-			
+
 			/* if track is currently 'solo', then AnimData should have its
 			 * 'has solo' flag disabled
 			 */
 			if (nlt->flag & NLATRACK_SOLO)
 				adt->flag &= ~ADT_NLA_SOLO_TRACK;
-			
+
 			/* call delete on this track - deletes all strips too */
 			BKE_nlatrack_free(&adt->nla_tracks, nlt);
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -751,11 +751,11 @@ void NLA_OT_tracks_delete(wmOperatorType *ot)
 	ot->name = "Delete Tracks";
 	ot->idname = "NLA_OT_tracks_delete";
 	ot->description = "Delete selected NLA-Tracks and the strips they contain";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_delete_tracks_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -764,7 +764,7 @@ void NLA_OT_tracks_delete(wmOperatorType *ot)
 /* AnimData Related Operators */
 
 /* ******************** Include Objects Operator ***************************** */
-/* Include selected objects in NLA Editor, by giving them AnimData blocks 
+/* Include selected objects in NLA Editor, by giving them AnimData blocks
  * NOTE: This doesn't help for non-object AnimData, where we do not have any effective
  *       selection mechanism in place. Unfortunately, this means that non-object AnimData
  *       once again becomes a second-class citizen here. However, at least for the most
@@ -775,28 +775,28 @@ static int nlaedit_objects_add_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bAnimContext ac;
 	SpaceNla *snla;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-	
+
 	/* ensure that filters are set so that the effect will be immediately visible */
 	snla = (SpaceNla *)ac.sl;
 	if (snla && snla->ads) {
 		snla->ads->filterflag &= ~ADS_FILTER_NLA_NOACT;
 	}
-	
-	/* operate on selected objects... */	
+
+	/* operate on selected objects... */
 	CTX_DATA_BEGIN (C, Object *, ob, selected_objects)
 	{
 		/* ensure that object has AnimData... that's all */
 		BKE_animdata_add_id(&ob->id);
 	}
 	CTX_DATA_END;
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -807,11 +807,11 @@ void NLA_OT_selected_objects_add(wmOperatorType *ot)
 	ot->name = "Include Selected Objects";
 	ot->idname = "NLA_OT_selected_objects_add";
 	ot->description = "Make selected objects appear in NLA Editor by adding Animation Data";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_objects_add_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
diff --git a/source/blender/editors/space_nla/nla_draw.c b/source/blender/editors/space_nla/nla_draw.c
index 910b8b3c08b..5d138a939de 100644
--- a/source/blender/editors/space_nla/nla_draw.c
+++ b/source/blender/editors/space_nla/nla_draw.c
@@ -71,7 +71,7 @@
 
 /* Action-Line ---------------------- */
 
-/* get colors for drawing Action-Line 
+/* get colors for drawing Action-Line
  * NOTE: color returned includes fine-tuned alpha!
  */
 void nla_action_get_color(AnimData *adt, bAction *act, float color[4])
@@ -90,7 +90,7 @@ void nla_action_get_color(AnimData *adt, bAction *act, float color[4])
 			UI_GetThemeColor4fv(TH_ANIM_INACTIVE, color);
 		}
 	}
-	
+
 	/* when an NLA track is tagged "solo", action doesn't contribute, so shouldn't be as prominent */
 	if (adt && (adt->flag & ADT_NLA_SOLO_TRACK))
 		color[3] *= 0.15f;
@@ -103,44 +103,44 @@ static void nla_action_draw_keyframes(AnimData *adt, bAction *act, View2D *v2d,
 	ActKeyColumn *ak;
 	float xscale, f1, f2;
 	float color[4];
-	
+
 	/* get a list of the keyframes with NLA-scaling applied */
 	BLI_dlrbTree_init(&keys);
 	action_to_keylist(adt, act, &keys, NULL);
 	BLI_dlrbTree_linkedlist_sync(&keys);
-	
+
 	if (ELEM(NULL, act, keys.first))
 		return;
-	
-	/* draw a darkened region behind the strips 
-	 *	- get and reset the background color, this time without the alpha to stand out better 
+
+	/* draw a darkened region behind the strips
+	 *	- get and reset the background color, this time without the alpha to stand out better
 	 *	  (amplified alpha is used instead)
 	 */
 	nla_action_get_color(adt, act, color);
 	color[3] *= 2.5f;
-	
+
 	glColor4fv(color);
 	/*  - draw a rect from the first to the last frame (no extra overlaps for now)
 	 *	  that is slightly stumpier than the track background (hardcoded 2-units here)
 	 */
 	f1 = ((ActKeyColumn *)keys.first)->cfra;
 	f2 = ((ActKeyColumn *)keys.last)->cfra;
-	
+
 	glRectf(f1, ymin + 2, f2, ymax - 2);
-	
-	
+
+
 	/* get View2D scaling factor */
 	UI_view2d_scale_get(v2d, &xscale, NULL);
-	
+
 	/* for now, color is hardcoded to be black */
 	glColor3f(0.0f, 0.0f, 0.0f);
-	
-	/* just draw each keyframe as a simple dot (regardless of the selection status) 
+
+	/* just draw each keyframe as a simple dot (regardless of the selection status)
 	 *	- size is 3.0f which is smaller than the editable keyframes, so that there is a distinction
 	 */
 	for (ak = keys.first; ak; ak = ak->next)
 		draw_keyframe_shape(ak->cfra, y, xscale, 3.0f, 0, ak->key_type, KEYFRAME_SHAPE_FRAME, 1.0f);
-	
+
 	/* free icons */
 	BLI_dlrbTree_free(&keys);
 }
@@ -152,14 +152,14 @@ static void nla_actionclip_draw_markers(NlaStrip *strip, float yminc, float ymax
 {
 	bAction *act = strip->act;
 	TimeMarker *marker;
-	
+
 	if (ELEM(NULL, strip->act, strip->act->markers.first))
 		return;
-	
+
 	for (marker = act->markers.first; marker; marker = marker->next) {
 		if ((marker->frame > strip->actstart) && (marker->frame < strip->actend)) {
 			float frame = nlastrip_get_frame(strip, marker->frame, NLATIME_CONVERT_MAP);
-			
+
 			/* just a simple line for now */
 			// XXX: draw a triangle instead...
 			fdrawline(frame, yminc + 1, frame, ymaxc - 1);
@@ -171,25 +171,25 @@ static void nla_actionclip_draw_markers(NlaStrip *strip, float yminc, float ymax
 static void nla_strip_draw_markers(NlaStrip *strip, float yminc, float ymaxc)
 {
 	glLineWidth(2.0);
-	
+
 	if (strip->type == NLASTRIP_TYPE_CLIP) {
 		/* try not to be too conspicuous, while being visible enough when transforming */
 		if (strip->flag & NLASTRIP_FLAG_SELECT)
 			UI_ThemeColorShade(TH_STRIP_SELECT, -60);
 		else
 			UI_ThemeColorShade(TH_STRIP_SELECT, -40);
-		
+
 		setlinestyle(3);
-		
+
 		/* just draw the markers in this clip */
 		nla_actionclip_draw_markers(strip, yminc, ymaxc);
-		
+
 		setlinestyle(0);
 	}
 	else if (strip->flag & NLASTRIP_FLAG_TEMP_META) {
 		/* just a solid color, so that it is very easy to spot */
 		UI_ThemeColorShade(TH_STRIP_SELECT, 20);
-		
+
 		/* draw the markers in the first level of strips only (if they are actions) */
 		for (NlaStrip *nls = strip->strips.first; nls; nls = nls->next) {
 			if (nls->type == NLASTRIP_TYPE_CLIP) {
@@ -197,7 +197,7 @@ static void nla_strip_draw_markers(NlaStrip *strip, float yminc, float ymaxc)
 			}
 		}
 	}
-	
+
 	glLineWidth(1.0);
 }
 
@@ -269,25 +269,25 @@ static void nla_strip_get_color_inside(AnimData *adt, NlaStrip *strip, float col
 static void nla_draw_strip_curves(NlaStrip *strip, float yminc, float ymaxc)
 {
 	const float yheight = ymaxc - yminc;
-	
+
 	/* drawing color is simply a light-gray */
 	// TODO: is this color suitable?
 	// XXX nasty hacked color for now... which looks quite bad too...
 	glColor3f(0.7f, 0.7f, 0.7f);
-	
+
 	/* draw with AA'd line */
 	glEnable(GL_LINE_SMOOTH);
 	glEnable(GL_BLEND);
-	
+
 	/* influence -------------------------- */
 	if (strip->flag & NLASTRIP_FLAG_USR_INFLUENCE) {
 		FCurve *fcu = list_find_fcurve(&strip->fcurves, "influence", 0);
 		float cfra;
-		
+
 		/* plot the curve (over the strip's main region) */
 		if (fcu) {
 			glBegin(GL_LINE_STRIP);
-			
+
 			/* sample at 1 frame intervals, and draw
 			 *	- min y-val is yminc, max is y-maxc, so clamp in those regions
 			 */
@@ -296,7 +296,7 @@ static void nla_draw_strip_curves(NlaStrip *strip, float yminc, float ymaxc)
 				CLAMP(y, 0.0f, 1.0f);
 				glVertex2f(cfra, ((y * yheight) + yminc));
 			}
-			
+
 			glEnd(); // GL_LINE_STRIP
 		}
 	}
@@ -311,7 +311,7 @@ static void nla_draw_strip_curves(NlaStrip *strip, float yminc, float ymaxc)
 			}
 			else
 				glVertex2f(strip->start, ymaxc);
-					
+
 			/* end of strip */
 			if (IS_EQF(strip->blendout, 0.0f) == 0) {
 				glVertex2f(strip->end - strip->blendout,    ymaxc);
@@ -322,10 +322,10 @@ static void nla_draw_strip_curves(NlaStrip *strip, float yminc, float ymaxc)
 			glEnd(); // GL_LINE_STRIP
 		}
 	}
-	
+
 	/* time -------------------------- */
 	// XXX do we want to draw this curve? in a different color too?
-	
+
 	/* turn off AA'd lines */
 	glDisable(GL_LINE_SMOOTH);
 	glDisable(GL_BLEND);
@@ -336,10 +336,10 @@ static void nla_draw_strip(SpaceNla *snla, AnimData *adt, NlaTrack *nlt, NlaStri
 {
 	const bool non_solo = ((adt && (adt->flag & ADT_NLA_SOLO_TRACK)) && (nlt->flag & NLATRACK_SOLO) == 0);
 	float color[3];
-	
+
 	/* get color of strip */
 	nla_strip_get_color_inside(adt, strip, color);
-	
+
 	/* draw extrapolation info first (as backdrop)
 	 *	- but this should only be drawn if track has some contribution
 	 */
@@ -347,17 +347,17 @@ static void nla_draw_strip(SpaceNla *snla, AnimData *adt, NlaTrack *nlt, NlaStri
 		/* enable transparency... */
 		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 		glEnable(GL_BLEND);
-		
+
 		switch (strip->extendmode) {
 			/* since this does both sides, only do the 'before' side, and leave the rest to the next case */
-			case NLASTRIP_EXTEND_HOLD: 
-				/* only need to draw here if there's no strip before since 
-				 * it only applies in such a situation 
+			case NLASTRIP_EXTEND_HOLD:
+				/* only need to draw here if there's no strip before since
+				 * it only applies in such a situation
 				 */
 				if (strip->prev == NULL) {
 					/* set the drawing color to the color of the strip, but with very faint alpha */
 					glColor4f(color[0], color[1], color[2], 0.15f);
-					
+
 					/* draw the rect to the edge of the screen */
 					glBegin(GL_QUADS);
 					glVertex2f(v2d->cur.xmin, yminc);
@@ -369,17 +369,17 @@ static void nla_draw_strip(SpaceNla *snla, AnimData *adt, NlaTrack *nlt, NlaStri
 				ATTR_FALLTHROUGH;
 
 			/* this only draws after the strip */
-			case NLASTRIP_EXTEND_HOLD_FORWARD: 
+			case NLASTRIP_EXTEND_HOLD_FORWARD:
 				/* only need to try and draw if the next strip doesn't occur immediately after */
 				if ((strip->next == NULL) || (IS_EQF(strip->next->start, strip->end) == 0)) {
 					/* set the drawing color to the color of the strip, but this time less faint */
 					glColor4f(color[0], color[1], color[2], 0.3f);
-					
+
 					/* draw the rect to the next strip or the edge of the screen */
 					glBegin(GL_QUADS);
 					glVertex2f(strip->end, yminc);
 					glVertex2f(strip->end, ymaxc);
-						
+
 					if (strip->next) {
 						glVertex2f(strip->next->start, ymaxc);
 						glVertex2f(strip->next->start, yminc);
@@ -392,41 +392,41 @@ static void nla_draw_strip(SpaceNla *snla, AnimData *adt, NlaTrack *nlt, NlaStri
 				}
 				break;
 		}
-		
+
 		glDisable(GL_BLEND);
 	}
-	
-	
+
+
 	/* draw 'inside' of strip itself */
 	if (non_solo == 0) {
 		/* strip is in normal track */
 		glColor3fv(color);
 		UI_draw_roundbox_corner_set(UI_CNR_ALL); /* all corners rounded */
-		
+
 		UI_draw_roundbox_shade_x(GL_POLYGON, strip->start, yminc, strip->end, ymaxc, 0.0, 0.5, 0.1);
 	}
 	else {
 		/* strip is in disabled track - make less visible */
 		glColor4f(color[0], color[1], color[2], 0.1f);
-		
+
 		glEnable(GL_BLEND);
 		glRectf(strip->start, yminc, strip->end, ymaxc);
 		glDisable(GL_BLEND);
 	}
-	
-	
+
+
 	/* draw strip's control 'curves'
 	 *	- only if user hasn't hidden them...
 	 */
 	if ((snla->flag & SNLA_NOSTRIPCURVES) == 0)
 		nla_draw_strip_curves(strip, yminc, ymaxc);
-	
-	
+
+
 	/* draw markings indicating locations of local markers (useful for lining up different actions) */
 	if ((snla->flag & SNLA_NOLOCALMARKERS) == 0)
 		nla_strip_draw_markers(strip, yminc, ymaxc);
-	
-	/* draw strip outline 
+
+	/* draw strip outline
 	 *	- color used here is to indicate active vs non-active
 	 */
 	if (strip->flag & NLASTRIP_FLAG_ACTIVE) {
@@ -437,25 +437,25 @@ static void nla_draw_strip(SpaceNla *snla, AnimData *adt, NlaTrack *nlt, NlaStri
 		/* strip should appear to stand out, so draw a dark border around it */
 		glColor3f(0.0f, 0.0f, 0.0f);
 	}
-	
+
 	/* - line style: dotted for muted */
 	if ((nlt->flag & NLATRACK_MUTED) || (strip->flag & NLASTRIP_FLAG_MUTED))
 		setlinestyle(4);
-		
+
 	/* draw outline */
 	UI_draw_roundbox_shade_x(GL_LINE_LOOP, strip->start, yminc, strip->end, ymaxc, 0.0, 0.0, 0.1);
-	
+
 	/* if action-clip strip, draw lines delimiting repeats too (in the same color as outline) */
 	if ((strip->type == NLASTRIP_TYPE_CLIP) && IS_EQF(strip->repeat, 1.0f) == 0) {
 		float repeatLen = (strip->actend - strip->actstart) * strip->scale;
 		int i;
-		
+
 		/* only draw lines for whole-numbered repeats, starting from the first full-repeat
 		 * up to the last full repeat (but not if it lies on the end of the strip)
 		 */
 		for (i = 1; i < strip->repeat; i++) {
 			float repeatPos = strip->start + (repeatLen * i);
-			
+
 			/* don't draw if line would end up on or after the end of the strip */
 			if (repeatPos < strip->end)
 				fdrawline(repeatPos, yminc + 4, repeatPos, ymaxc - 4);
@@ -465,26 +465,26 @@ static void nla_draw_strip(SpaceNla *snla, AnimData *adt, NlaTrack *nlt, NlaStri
 	else if ((strip->type == NLASTRIP_TYPE_META) && (strip->strips.first != strip->strips.last)) {
 		NlaStrip *cs;
 		float y = (ymaxc - yminc) / 2.0f + yminc;
-		
+
 		/* only draw first-level of child-strips, but don't draw any lines on the endpoints */
 		for (cs = strip->strips.first; cs; cs = cs->next) {
-			/* draw start-line if not same as end of previous (and only if not the first strip) 
+			/* draw start-line if not same as end of previous (and only if not the first strip)
 			 *	- on upper half of strip
 			 */
 			if ((cs->prev) && IS_EQF(cs->prev->end, cs->start) == 0)
 				fdrawline(cs->start, y, cs->start, ymaxc);
-				
+
 			/* draw end-line if not the last strip
 			 *	- on lower half of strip
 			 */
-			if (cs->next) 
+			if (cs->next)
 				fdrawline(cs->end, yminc, cs->end, y);
 		}
 	}
-	
+
 	/* reset linestyle */
 	setlinestyle(0);
-} 
+}
 
 /* add the relevant text to the cache of text-strings to draw in pixelspace */
 static void nla_draw_strip_text(
@@ -496,7 +496,7 @@ static void nla_draw_strip_text(
 	size_t str_len;
 	char col[4];
 	rctf rect;
-	
+
 	/* just print the name and the range */
 	if (strip->flag & NLASTRIP_FLAG_TEMP_META) {
 		str_len = BLI_snprintf_rlen(str, sizeof(str), "%d) Temp-Meta", index);
@@ -504,7 +504,7 @@ static void nla_draw_strip_text(
 	else {
 		str_len = BLI_strncpy_rlen(str, strip->name, sizeof(str));
 	}
-	
+
 	/* set text color - if colors (see above) are light, draw black text, otherwise draw white */
 	if (strip->flag & (NLASTRIP_FLAG_ACTIVE | NLASTRIP_FLAG_SELECT | NLASTRIP_FLAG_TWEAKUSER)) {
 		col[0] = col[1] = col[2] = 0;
@@ -512,14 +512,14 @@ static void nla_draw_strip_text(
 	else {
 		col[0] = col[1] = col[2] = 255;
 	}
-	
+
 	/* text opacity depends on whether if there's a solo'd track, this isn't it */
 	if (non_solo == 0)
 		col[3] = 255;
 	else
 		col[3] = 128;
 
-	/* set bounding-box for text 
+	/* set bounding-box for text
 	 *	- padding of 2 'units' on either side
 	 */
 	// TODO: make this centered?
@@ -527,7 +527,7 @@ static void nla_draw_strip_text(
 	rect.ymin = yminc;
 	rect.xmax = xmaxc;
 	rect.ymax = ymaxc;
-	
+
 	/* add this string to the cache of texts to draw */
 	UI_view2d_text_cache_add_rectf(v2d, &rect, str, str_len, col);
 }
@@ -541,18 +541,18 @@ static void nla_draw_strip_frames_text(NlaTrack *UNUSED(nlt), NlaStrip *strip, V
 	const char col[4] = {220, 220, 220, 255}; /* light gray */
 	char numstr[32];
 	size_t numstr_len;
-	
-	
+
+
 	/* Always draw times above the strip, whereas sequencer drew below + above.
-	 * However, we should be fine having everything on top, since these tend to be 
-	 * quite spaced out. 
+	 * However, we should be fine having everything on top, since these tend to be
+	 * quite spaced out.
 	 *	- 1 dp is compromise between lack of precision (ints only, as per sequencer)
 	 *	  while also preserving some accuracy, since we do use floats
 	 */
 	/* start frame */
 	numstr_len = BLI_snprintf_rlen(numstr, sizeof(numstr), "%.1f", strip->start);
 	UI_view2d_text_cache_add(v2d, strip->start - 1.0f, ymaxc + ytol, numstr, numstr_len, col);
-	
+
 	/* end frame */
 	numstr_len = BLI_snprintf_rlen(numstr, sizeof(numstr), "%.1f", strip->end);
 	UI_view2d_text_cache_add(v2d, strip->end, ymaxc + ytol, numstr, numstr_len, col);
@@ -565,37 +565,37 @@ void draw_nla_main_data(bAnimContext *ac, SpaceNla *snla, ARegion *ar)
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	View2D *v2d = &ar->v2d;
 	float y = 0.0f;
 	size_t items;
 	int height;
 	const float pixelx = BLI_rctf_size_x(&v2d->cur) / BLI_rcti_size_x(&v2d->mask);
 	const float text_margin_x = (8 * UI_DPI_FAC) * pixelx;
-	
+
 	/* build list of channels to draw */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_LIST_CHANNELS);
 	items = ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
-	
+
 	/* Update max-extent of channels here (taking into account scrollers):
 	 *  - this is done to allow the channel list to be scrollable, but must be done here
 	 *    to avoid regenerating the list again and/or also because channels list is drawn first
-	 *	- offset of NLACHANNEL_HEIGHT*2 is added to the height of the channels, as first is for 
+	 *	- offset of NLACHANNEL_HEIGHT*2 is added to the height of the channels, as first is for
 	 *	  start of list offset, and the second is as a correction for the scrollers.
 	 */
 	height = ((items * NLACHANNEL_STEP(snla)) + (NLACHANNEL_HEIGHT(snla) * 2));
-	/* don't use totrect set, as the width stays the same 
-	 * (NOTE: this is ok here, the configuration is pretty straightforward) 
+	/* don't use totrect set, as the width stays the same
+	 * (NOTE: this is ok here, the configuration is pretty straightforward)
 	 */
 	v2d->tot.ymin = (float)(-height);
-	
+
 	/* loop through channels, and set up drawing depending on their type  */
 	y = (float)(-NLACHANNEL_HEIGHT(snla));
-	
+
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		const float yminc = (float)(y - NLACHANNEL_HEIGHT_HALF(snla));
 		const float ymaxc = (float)(y + NLACHANNEL_HEIGHT_HALF(snla));
-		
+
 		/* check if visible */
 		if (IN_RANGE(yminc, v2d->cur.ymin, v2d->cur.ymax) ||
 		    IN_RANGE(ymaxc, v2d->cur.ymin, v2d->cur.ymax) )
@@ -608,7 +608,7 @@ void draw_nla_main_data(bAnimContext *ac, SpaceNla *snla, ARegion *ar)
 					NlaTrack *nlt = (NlaTrack *)ale->data;
 					NlaStrip *strip;
 					int index;
-					
+
 					/* draw each strip in the track (if visible) */
 					for (strip = nlt->strips.first, index = 1; strip; strip = strip->next, index++) {
 						if (BKE_nlastrip_within_bounds(strip, v2d->cur.xmin, v2d->cur.xmax)) {
@@ -617,13 +617,13 @@ void draw_nla_main_data(bAnimContext *ac, SpaceNla *snla, ARegion *ar)
 
 							/* draw the visualization of the strip */
 							nla_draw_strip(snla, adt, nlt, strip, v2d, yminc, ymaxc);
-							
+
 							/* add the text for this strip to the cache */
 							if (xminc < xmaxc) {
 								nla_draw_strip_text(adt, nlt, strip, index, v2d, xminc, xmaxc, yminc, ymaxc);
 							}
-							
-							/* if transforming strips (only real reason for temp-metas currently), 
+
+							/* if transforming strips (only real reason for temp-metas currently),
 							 * add to the cache the frame numbers of the strip's extents
 							 */
 							if (strip->flag & NLASTRIP_FLAG_TEMP_META)
@@ -636,48 +636,48 @@ void draw_nla_main_data(bAnimContext *ac, SpaceNla *snla, ARegion *ar)
 				{
 					AnimData *adt = ale->adt;
 					float color[4];
-					
+
 					/* just draw a semi-shaded rect spanning the width of the viewable area if there's data,
 					 * and a second darker rect within which we draw keyframe indicator dots if there's data
 					 */
 					glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 					glEnable(GL_BLEND);
-						
+
 					/* get colors for drawing */
 					nla_action_get_color(adt, ale->data, color);
 					glColor4fv(color);
-					
+
 					/* draw slightly shifted up for greater separation from standard channels,
 					 * but also slightly shorter for some more contrast when viewing the strips
 					 */
 					glRectf(v2d->cur.xmin, yminc + NLACHANNEL_SKIP, v2d->cur.xmax, ymaxc - NLACHANNEL_SKIP);
-					
+
 					/* draw keyframes in the action */
 					nla_action_draw_keyframes(adt, ale->data, v2d, y, yminc + NLACHANNEL_SKIP, ymaxc - NLACHANNEL_SKIP);
-					
+
 					/* draw 'embossed' lines above and below the strip for effect */
 					/* white base-lines */
 					glLineWidth(2.0f);
 					glColor4f(1.0f, 1.0f, 1.0f, 0.3);
 					fdrawline(v2d->cur.xmin, yminc + NLACHANNEL_SKIP, v2d->cur.xmax, yminc + NLACHANNEL_SKIP);
 					fdrawline(v2d->cur.xmin, ymaxc - NLACHANNEL_SKIP, v2d->cur.xmax, ymaxc - NLACHANNEL_SKIP);
-					
+
 					/* black top-lines */
 					glLineWidth(1.0f);
 					glColor3f(0.0f, 0.0f, 0.0f);
 					fdrawline(v2d->cur.xmin, yminc + NLACHANNEL_SKIP, v2d->cur.xmax, yminc + NLACHANNEL_SKIP);
 					fdrawline(v2d->cur.xmin, ymaxc - NLACHANNEL_SKIP, v2d->cur.xmax, ymaxc - NLACHANNEL_SKIP);
-					
+
 					glDisable(GL_BLEND);
 					break;
 				}
 			}
 		}
-		
+
 		/* adjust y-position for next one */
 		y -= NLACHANNEL_STEP(snla);
 	}
-	
+
 	/* free tempolary channels */
 	ANIM_animdata_freelist(&anim_data);
 }
@@ -690,41 +690,41 @@ void draw_nla_channel_list(const bContext *C, bAnimContext *ac, ARegion *ar)
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	SpaceNla *snla = (SpaceNla *)ac->sl;
 	View2D *v2d = &ar->v2d;
 	float y = 0.0f;
 	size_t items;
 	int height;
-	
+
 	/* build list of channels to draw */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_LIST_CHANNELS);
 	items = ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
-	
+
 	/* Update max-extent of channels here (taking into account scrollers):
 	 *  - this is done to allow the channel list to be scrollable, but must be done here
 	 *    to avoid regenerating the list again and/or also because channels list is drawn first
-	 *	- offset of NLACHANNEL_HEIGHT*2 is added to the height of the channels, as first is for 
+	 *	- offset of NLACHANNEL_HEIGHT*2 is added to the height of the channels, as first is for
 	 *	  start of list offset, and the second is as a correction for the scrollers.
 	 */
 	height = ((items * NLACHANNEL_STEP(snla)) + (NLACHANNEL_HEIGHT(snla) * 2));
-	/* don't use totrect set, as the width stays the same 
-	 * (NOTE: this is ok here, the configuration is pretty straightforward) 
+	/* don't use totrect set, as the width stays the same
+	 * (NOTE: this is ok here, the configuration is pretty straightforward)
 	 */
 	v2d->tot.ymin = (float)(-height);
 	/* need to do a view-sync here, so that the keys area doesn't jump around (it must copy this) */
 	UI_view2d_sync(NULL, ac->sa, v2d, V2D_LOCK_COPY);
-	
+
 	/* draw channels */
 	{   /* first pass: just the standard GL-drawing for backdrop + text */
 		size_t channel_index = 0;
-		
+
 		y = (float)(-NLACHANNEL_HEIGHT(snla));
-		
+
 		for (ale = anim_data.first; ale; ale = ale->next) {
 			float yminc = (float)(y -  NLACHANNEL_HEIGHT_HALF(snla));
 			float ymaxc = (float)(y +  NLACHANNEL_HEIGHT_HALF(snla));
-			
+
 			/* check if visible */
 			if (IN_RANGE(yminc, v2d->cur.ymin, v2d->cur.ymax) ||
 			    IN_RANGE(ymaxc, v2d->cur.ymin, v2d->cur.ymax) )
@@ -732,7 +732,7 @@ void draw_nla_channel_list(const bContext *C, bAnimContext *ac, ARegion *ar)
 				/* draw all channels using standard channel-drawing API */
 				ANIM_channel_draw(ac, ale, yminc, ymaxc, channel_index);
 			}
-			
+
 			/* adjust y-position for next one */
 			y -= NLACHANNEL_STEP(snla);
 			channel_index++;
@@ -741,18 +741,18 @@ void draw_nla_channel_list(const bContext *C, bAnimContext *ac, ARegion *ar)
 	{   /* second pass: UI widgets */
 		uiBlock *block = UI_block_begin(C, ar, __func__, UI_EMBOSS);
 		size_t channel_index = 0;
-		
+
 		y = (float)(-NLACHANNEL_HEIGHT(snla));
-		
+
 		/* set blending again, as may not be set in previous step */
 		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 		glEnable(GL_BLEND);
-		
+
 		/* loop through channels, and set up drawing depending on their type  */
 		for (ale = anim_data.first; ale; ale = ale->next) {
 			const float yminc = (float)(y - NLACHANNEL_HEIGHT_HALF(snla));
 			const float ymaxc = (float)(y + NLACHANNEL_HEIGHT_HALF(snla));
-			
+
 			/* check if visible */
 			if (IN_RANGE(yminc, v2d->cur.ymin, v2d->cur.ymax) ||
 			    IN_RANGE(ymaxc, v2d->cur.ymin, v2d->cur.ymax) )
@@ -760,18 +760,18 @@ void draw_nla_channel_list(const bContext *C, bAnimContext *ac, ARegion *ar)
 				/* draw all channels using standard channel-drawing API */
 				ANIM_channel_draw_widgets(C, ac, ale, block, yminc, ymaxc, channel_index);
 			}
-			
+
 			/* adjust y-position for next one */
 			y -= NLACHANNEL_STEP(snla);
 			channel_index++;
 		}
-		
+
 		UI_block_end(C, block);
 		UI_block_draw(C, block);
-		
+
 		glDisable(GL_BLEND);
 	}
-	
+
 	/* free temporary channels */
 	ANIM_animdata_freelist(&anim_data);
 }
diff --git a/source/blender/editors/space_nla/nla_edit.c b/source/blender/editors/space_nla/nla_edit.c
index 4fabd1ded46..26ac06446c4 100644
--- a/source/blender/editors/space_nla/nla_edit.c
+++ b/source/blender/editors/space_nla/nla_edit.c
@@ -83,15 +83,15 @@ void ED_nla_postop_refresh(bAnimContext *ac)
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	short filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_ANIMDATA | ANIMFILTER_FOREDIT);
-	
+
 	/* get blocks to work on */
 	ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
-	
+
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		/* performing auto-blending, extend-mode validation, etc. */
 		BKE_nla_validate_state(ale->data);
 	}
-	
+
 	/* free temp memory */
 	ANIM_animdata_freelist(&anim_data);
 }
@@ -100,62 +100,62 @@ void ED_nla_postop_refresh(bAnimContext *ac)
 /* 'Special' Editing */
 
 /* ******************** Tweak-Mode Operators ***************************** */
-/* 'Tweak mode' allows the action referenced by the active NLA-strip to be edited 
+/* 'Tweak mode' allows the action referenced by the active NLA-strip to be edited
  * as if it were the normal Active-Action of its AnimData block.
  */
 
 static int nlaedit_enable_tweakmode_exec(bContext *C, wmOperator *op)
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	const bool do_solo = RNA_boolean_get(op->ptr, "isolate_action");
 	bool ok = false;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the AnimData blocks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_ANIMDATA);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* if no blocks, popup error? */
 	if (BLI_listbase_is_empty(&anim_data)) {
 		BKE_report(op->reports, RPT_ERROR, "No AnimData blocks to enter tweak mode for");
 		return OPERATOR_CANCELLED;
 	}
-	
+
 	/* for each AnimData block with NLA-data, try setting it in tweak-mode */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		AnimData *adt = ale->data;
-		
+
 		/* try entering tweakmode if valid */
 		ok |= BKE_nla_tweakmode_enter(adt);
-		
+
 		/* mark the active track as being "solo"? */
 		if (do_solo && adt->actstrip) {
 			NlaTrack *nlt = BKE_nlatrack_find_tweaked(adt);
-			
+
 			if (nlt && !(nlt->flag & NLATRACK_SOLO)) {
 				BKE_nlatrack_solo_toggle(adt, nlt);
 			}
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
-	/* if we managed to enter tweakmode on at least one AnimData block, 
+
+	/* if we managed to enter tweakmode on at least one AnimData block,
 	 * set the flag for this in the active scene and send notifiers
 	 */
 	if (ac.scene && ok) {
 		/* set editing flag */
 		ac.scene->flag |= SCE_NLA_EDIT_ON;
-		
+
 		/* set notifier that things have changed */
 		WM_event_add_notifier(C, NC_ANIMATION | ND_NLA_ACTCHANGE, NULL);
 	}
@@ -163,27 +163,27 @@ static int nlaedit_enable_tweakmode_exec(bContext *C, wmOperator *op)
 		BKE_report(op->reports, RPT_ERROR, "No active strip(s) to enter tweak mode on");
 		return OPERATOR_CANCELLED;
 	}
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
- 
+
 void NLA_OT_tweakmode_enter(wmOperatorType *ot)
 {
 	PropertyRNA *prop;
-	
+
 	/* identifiers */
 	ot->name = "Enter Tweak Mode";
 	ot->idname = "NLA_OT_tweakmode_enter";
 	ot->description = "Enter tweaking mode for the action referenced by the active strip to edit its keyframes";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_enable_tweakmode_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-	
+
 	/* properties */
 	prop = RNA_def_boolean(ot->srna, "isolate_action", 0, "Isolate Action",
 	                       "Enable 'solo' on the NLA Track containing the active strip, "
@@ -198,47 +198,47 @@ bool nlaedit_disable_tweakmode(bAnimContext *ac, bool do_solo)
 {
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
-	int filter;	
-	
+	int filter;
+
 	/* get a list of the AnimData blocks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_ANIMDATA);
 	ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
-	
+
 	/* if no blocks, popup error? */
 	if (BLI_listbase_is_empty(&anim_data)) {
 		BKE_report(ac->reports, RPT_ERROR, "No AnimData blocks in tweak mode to exit from");
 		return false;
 	}
-	
+
 	/* for each AnimData block with NLA-data, try exitting tweak-mode */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		AnimData *adt = ale->data;
-		
+
 		/* clear solo flags */
 		if ((do_solo) & (adt->flag & ADT_NLA_SOLO_TRACK) &&
-		    (adt->flag & ADT_NLA_EDIT_ON)) 
+		    (adt->flag & ADT_NLA_EDIT_ON))
 		{
 			BKE_nlatrack_solo_toggle(adt, NULL);
 		}
-		
+
 		/* to be sure that we're doing everything right, just exit tweakmode... */
 		BKE_nla_tweakmode_exit(adt);
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
-	/* if we managed to enter tweakmode on at least one AnimData block, 
+
+	/* if we managed to enter tweakmode on at least one AnimData block,
 	 * set the flag for this in the active scene and send notifiers
 	 */
 	if (ac->scene) {
 		/* clear editing flag */
 		ac->scene->flag &= ~SCE_NLA_EDIT_ON;
-		
+
 		/* set notifier that things have changed */
 		WM_main_add_notifier(NC_ANIMATION | ND_NLA_ACTCHANGE, NULL);
 	}
-	
+
 	/* done */
 	return true;
 }
@@ -247,40 +247,40 @@ bool nlaedit_disable_tweakmode(bAnimContext *ac, bool do_solo)
 static int nlaedit_disable_tweakmode_exec(bContext *C, wmOperator *op)
 {
 	bAnimContext ac;
-	
+
 	const bool do_solo = RNA_boolean_get(op->ptr, "isolate_action");
 	bool ok = false;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* perform operation */
 	ok = nlaedit_disable_tweakmode(&ac, do_solo);
-	
+
 	/* success? */
 	if (ok)
 		return OPERATOR_FINISHED;
 	else
 		return OPERATOR_CANCELLED;
 }
- 
+
 void NLA_OT_tweakmode_exit(wmOperatorType *ot)
 {
 	PropertyRNA *prop;
-	
+
 	/* identifiers */
 	ot->name = "Exit Tweak Mode";
 	ot->idname = "NLA_OT_tweakmode_exit";
 	ot->description = "Exit tweaking mode for the action referenced by the active strip";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_disable_tweakmode_exec;
 	ot->poll = nlaop_poll_tweakmode_on;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-	
+
 	/* properties */
 	prop = RNA_def_boolean(ot->srna, "isolate_action", 0, "Isolate Action",
 	                       "Disable 'solo' on any of the NLA Tracks after exiting tweak mode "
@@ -300,38 +300,38 @@ static void get_nlastrip_extents(bAnimContext *ac, float *min, float *max, const
 	bAnimListElem *ale;
 	int filter;
 	bool found_bounds = false;
-	
+
 	/* get data to filter */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_NODUPLIS);
 	ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
-	
+
 	/* set large values to try to override */
 	*min = 999999999.0f;
 	*max = -999999999.0f;
-	
+
 	/* check if any channels to set range with */
 	if (anim_data.first) {
 		/* go through channels, finding max extents */
 		for (ale = anim_data.first; ale; ale = ale->next) {
 			NlaTrack *nlt = (NlaTrack *)ale->data;
 			NlaStrip *strip;
-			
+
 			for (strip = nlt->strips.first; strip; strip = strip->next) {
 				/* only consider selected strips? */
 				if ((only_sel == false) || (strip->flag & NLASTRIP_FLAG_SELECT)) {
 					/* extend range if appropriate */
 					*min = min_ff(*min, strip->start);
 					*max = max_ff(*max, strip->end);
-					
+
 					found_bounds = true;
 				}
 			}
 		}
-		
+
 		/* free memory */
 		ANIM_animdata_freelist(&anim_data);
 	}
-	
+
 	/* set default range if nothing happened */
 	if (found_bounds == false) {
 		if (ac->scene) {
@@ -352,40 +352,40 @@ static int nlaedit_previewrange_exec(bContext *C, wmOperator *UNUSED(op))
 	bAnimContext ac;
 	Scene *scene;
 	float min, max;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-	
+
 	if (ac.scene == NULL)
 		return OPERATOR_CANCELLED;
 	else
 		scene = ac.scene;
-	
+
 	/* set the range directly */
 	get_nlastrip_extents(&ac, &min, &max, true);
 	scene->r.flag |= SCER_PRV_RANGE;
 	scene->r.psfra = round_fl_to_int(min);
 	scene->r.pefra = round_fl_to_int(max);
-	
+
 	/* set notifier that things have changed */
 	// XXX err... there's nothing for frame ranges yet, but this should do fine too
 	WM_event_add_notifier(C, NC_SCENE | ND_FRAME, ac.scene);
-	
+
 	return OPERATOR_FINISHED;
 }
- 
+
 void NLA_OT_previewrange_set(wmOperatorType *ot)
 {
 	/* identifiers */
 	ot->name = "Auto-Set Preview Range";
 	ot->idname = "NLA_OT_previewrange_set";
 	ot->description = "Automatically set Preview Range based on range of keyframes";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_previewrange_exec;
 	ot->poll = ED_operator_nla_active;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -404,33 +404,33 @@ static bool nla_channels_get_selected_extents(bAnimContext *ac, float *min, floa
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	SpaceNla *snla = (SpaceNla *)ac->sl;
 	const float half_height = NLACHANNEL_HEIGHT_HALF(snla);
 	short found = 0; /* NOTE: not bool, since we want prioritise individual channels over expanders */
 	float y;
-	
+
 	/* get all items - we need to do it this way */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_LIST_CHANNELS);
 	ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
-	
+
 	/* loop through all channels, finding the first one that's selected */
 	y = (float)NLACHANNEL_FIRST;
-	
+
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		const bAnimChannelType *acf = ANIM_channel_get_typeinfo(ale);
-		
+
 		/* must be selected... */
-		if (acf && acf->has_setting(ac, ale, ACHANNEL_SETTING_SELECT) && 
+		if (acf && acf->has_setting(ac, ale, ACHANNEL_SETTING_SELECT) &&
 		    ANIM_channel_setting_get(ac, ale, ACHANNEL_SETTING_SELECT))
 		{
 			/* update best estimate */
 			*min = (float)(y - half_height);
 			*max = (float)(y + half_height);
-			
+
 			/* is this high enough priority yet? */
 			found = acf->channel_role;
-			
+
 			/* only stop our search when we've found an actual channel
 			 * - datablock expanders get less priority so that we don't abort prematurely
 			 */
@@ -438,14 +438,14 @@ static bool nla_channels_get_selected_extents(bAnimContext *ac, float *min, floa
 				break;
 			}
 		}
-		
+
 		/* adjust y-position for next one */
 		y -= NLACHANNEL_STEP(snla);
 	}
-	
+
 	/* free all temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	return (found != 0);
 }
 
@@ -454,19 +454,19 @@ static int nlaedit_viewall(bContext *C, const bool only_sel)
 	bAnimContext ac;
 	View2D *v2d;
 	float extra;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
 	v2d = &ac.ar->v2d;
-	
+
 	/* set the horizontal range, with an extra offset so that the extreme keys will be in view */
 	get_nlastrip_extents(&ac, &v2d->cur.xmin, &v2d->cur.xmax, only_sel);
-	
+
 	extra = 0.1f * BLI_rctf_size_x(&v2d->cur);
 	v2d->cur.xmin -= extra;
 	v2d->cur.xmax += extra;
-	
+
 	/* set vertical range */
 	if (only_sel == false) {
 		/* view all -> the summary channel is usually the shows everything, and resides right at the top... */
@@ -477,30 +477,30 @@ static int nlaedit_viewall(bContext *C, const bool only_sel)
 		/* locate first selected channel (or the active one), and frame those */
 		float ymin = v2d->cur.ymin;
 		float ymax = v2d->cur.ymax;
-		
+
 		if (nla_channels_get_selected_extents(&ac, &ymin, &ymax)) {
 			/* recenter the view so that this range is in the middle */
 			float ymid = (ymax - ymin) / 2.0f + ymin;
 			float x_center;
-			
+
 			UI_view2d_center_get(v2d, &x_center, NULL);
 			UI_view2d_center_set(v2d, x_center, ymid);
 		}
 	}
-	
+
 	/* do View2D syncing */
 	UI_view2d_sync(CTX_wm_screen(C), CTX_wm_area(C), v2d, V2D_LOCK_COPY);
-	
+
 	/* just redraw this view */
 	ED_area_tag_redraw(CTX_wm_area(C));
-	
+
 	return OPERATOR_FINISHED;
 }
 
 /* ......... */
 
 static int nlaedit_viewall_exec(bContext *C, wmOperator *UNUSED(op))
-{	
+{
 	/* whole range */
 	return nlaedit_viewall(C, false);
 }
@@ -510,18 +510,18 @@ static int nlaedit_viewsel_exec(bContext *C, wmOperator *UNUSED(op))
 	/* only selected */
 	return nlaedit_viewall(C, true);
 }
- 
+
 void NLA_OT_view_all(wmOperatorType *ot)
 {
 	/* identifiers */
 	ot->name = "View All";
 	ot->idname = "NLA_OT_view_all";
 	ot->description = "Reset viewable area to show full strips range";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_viewall_exec;
 	ot->poll = ED_operator_nla_active;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -532,11 +532,11 @@ void NLA_OT_view_selected(wmOperatorType *ot)
 	ot->name = "View Selected";
 	ot->idname = "NLA_OT_view_selected";
 	ot->description = "Reset viewable area to show selected strips range";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_viewsel_exec;
 	ot->poll = ED_operator_nla_active;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -556,11 +556,11 @@ void NLA_OT_view_frame(wmOperatorType *ot)
 	ot->name = "View Frame";
 	ot->idname = "NLA_OT_view_frame";
 	ot->description = "Reset viewable area to show range around current frame";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_viewframe_exec;
 	ot->poll = ED_operator_nla_active;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -577,7 +577,7 @@ static int nlaedit_add_actionclip_exec(bContext *C, wmOperator *op)
 {
 	bAnimContext ac;
 	Scene *scene;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	size_t items;
@@ -586,17 +586,17 @@ static int nlaedit_add_actionclip_exec(bContext *C, wmOperator *op)
 	bAction *act;
 
 	float cfra;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	scene = ac.scene;
 	cfra = (float)CFRA;
-		
+
 	/* get action to use */
 	act = BLI_findlink(&CTX_data_main(C)->action, RNA_enum_get(op->ptr, "action"));
-	
+
 	if (act == NULL) {
 		BKE_report(op->reports, RPT_ERROR, "No valid action to add");
 		//printf("Add strip - actname = '%s'\n", actname);
@@ -610,68 +610,68 @@ static int nlaedit_add_actionclip_exec(bContext *C, wmOperator *op)
 		            "for this action to avoid future problems)",
 		            act->id.name + 2);
 	}
-	
+
 	/* add tracks to empty but selected animdata blocks so that strips can be added to those directly
 	 * without having to manually add tracks first
 	 */
 	nlaedit_add_tracks_empty(&ac);
-	
+
 	/* get a list of the editable tracks being shown in the NLA
-	 *	- this is limited to active ones for now, but could be expanded to 
+	 *	- this is limited to active ones for now, but could be expanded to
 	 */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_ACTIVE | ANIMFILTER_FOREDIT);
 	items = ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	if (items == 0) {
-		BKE_report(op->reports, RPT_ERROR, 
+		BKE_report(op->reports, RPT_ERROR,
 		           "No active track(s) to add strip to, select an existing track or add one before trying again");
 		return OPERATOR_CANCELLED;
 	}
-	
+
 	/* for every active track, try to add strip to free space in track or to the top of the stack if no space */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		AnimData *adt = ale->adt;
 		NlaStrip *strip = NULL;
-		
-		/* sanity check: only apply actions of the right type for this ID 
+
+		/* sanity check: only apply actions of the right type for this ID
 		 * NOTE: in the case that this hasn't been set, we've already warned the user about this already
 		 */
 		if ((act->idroot) && (act->idroot != GS(ale->id->name))) {
-			BKE_reportf(op->reports, RPT_ERROR, 
+			BKE_reportf(op->reports, RPT_ERROR,
 			            "Could not add action '%s' as it cannot be used relative to ID-blocks of type '%s'",
 			            act->id.name + 2, ale->id->name);
 			continue;
 		}
-		
+
 		/* create a new strip, and offset it to start on the current frame */
 		strip = BKE_nlastrip_new(act);
-		
+
 		strip->end      += (cfra - strip->start);
 		strip->start     = cfra;
-		
+
 		/* firstly try adding strip to our current track, but if that fails, add to a new track */
 		if (BKE_nlatrack_add_strip(nlt, strip) == 0) {
-			/* trying to add to the current failed (no space), 
+			/* trying to add to the current failed (no space),
 			 * so add a new track to the stack, and add to that...
 			 */
 			nlt = BKE_nlatrack_add(adt, NULL);
 			BKE_nlatrack_add_strip(nlt, strip);
 		}
-		
+
 		/* auto-name it */
 		BKE_nlastrip_validate_name(adt, strip);
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* refresh auto strip properties */
 	ED_nla_postop_refresh(&ac);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -684,15 +684,15 @@ void NLA_OT_actionclip_add(wmOperatorType *ot)
 	ot->name = "Add Action Strip";
 	ot->idname = "NLA_OT_actionclip_add";
 	ot->description = "Add an Action-Clip strip (i.e. an NLA Strip referencing an Action) to the active track";
-	
+
 	/* api callbacks */
 	ot->invoke = WM_enum_search_invoke;
 	ot->exec = nlaedit_add_actionclip_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-	
+
 	/* props */
 	// TODO: this would be nicer as an ID-pointer...
 	prop = RNA_def_enum(ot->srna, "action", DummyRNA_NULL_items, 0, "Action", "");
@@ -707,45 +707,45 @@ void NLA_OT_actionclip_add(wmOperatorType *ot)
 static int nlaedit_add_transition_exec(bContext *C, wmOperator *op)
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	bool done = false;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-	
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* for each track, find pairs of strips to add transitions to */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		AnimData *adt = ale->adt;
 		NlaStrip *s1, *s2;
-		
+
 		/* get initial pair of strips */
 		if (ELEM(nlt->strips.first, NULL, nlt->strips.last))
 			continue;
 		s1 = nlt->strips.first;
 		s2 = s1->next;
-		
+
 		/* loop over strips */
 		for (; s1 && s2; s1 = s2, s2 = s2->next) {
 			NlaStrip *strip;
-			
+
 			/* check if both are selected */
 			if (ELEM(0, (s1->flag & NLASTRIP_FLAG_SELECT), (s2->flag & NLASTRIP_FLAG_SELECT)))
 				continue;
 			/* check if there's space between the two */
 			if (IS_EQF(s1->end, s2->start))
 				continue;
-			/* make sure neither one is a transition 
-			 *	- although this is impossible to create with the standard tools, 
+			/* make sure neither one is a transition
+			 *	- although this is impossible to create with the standard tools,
 			 *    the user may have altered the settings
 			 */
 			if (ELEM(NLASTRIP_TYPE_TRANSITION, s1->type, s2->type))
@@ -753,48 +753,48 @@ static int nlaedit_add_transition_exec(bContext *C, wmOperator *op)
 			/* also make sure neither one is a soundclip */
 			if (ELEM(NLASTRIP_TYPE_SOUND, s1->type, s2->type))
 				continue;
-				
+
 			/* allocate new strip */
 			strip = MEM_callocN(sizeof(NlaStrip), "NlaStrip");
 			BLI_insertlinkafter(&nlt->strips, s1, strip);
-			
+
 			/* set the type */
 			strip->type = NLASTRIP_TYPE_TRANSITION;
-			
-			/* generic settings 
+
+			/* generic settings
 			 *	- selected flag to highlight this to the user
-			 *	- auto-blends to ensure that blend in/out values are automatically 
+			 *	- auto-blends to ensure that blend in/out values are automatically
 			 *	  determined by overlaps of strips
 			 */
 			strip->flag = NLASTRIP_FLAG_SELECT | NLASTRIP_FLAG_AUTO_BLENDS;
-			
+
 			/* range is simply defined as the endpoints of the adjacent strips */
 			strip->start = s1->end;
 			strip->end   = s2->start;
-			
+
 			/* scale and repeat aren't of any use, but shouldn't ever be 0 */
 			strip->scale = 1.0f;
 			strip->repeat = 1.0f;
-			
+
 			/* auto-name it */
 			BKE_nlastrip_validate_name(adt, strip);
-			
+
 			/* make note of this */
 			done = true;
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* was anything added? */
 	if (done) {
 		/* refresh auto strip properties */
 		ED_nla_postop_refresh(&ac);
-		
+
 		/* set notifier that things have changed */
 		WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-		
+
 		/* done */
 		return OPERATOR_FINISHED;
 	}
@@ -810,11 +810,11 @@ void NLA_OT_transition_add(wmOperatorType *ot)
 	ot->name = "Add Transition";
 	ot->idname = "NLA_OT_transition_add";
 	ot->description = "Add a transition strip between two adjacent selected strips";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_add_transition_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -825,66 +825,66 @@ void NLA_OT_transition_add(wmOperatorType *ot)
 static int nlaedit_add_sound_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	Scene *scene;
 	int cfra;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-	
+
 	scene = ac.scene;
 	cfra = CFRA;
-	
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_SEL | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* for each track, add sound clips if it belongs to a speaker */
 	// TODO: what happens if there aren't any tracks... well that's a more general problem for later
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		Object *ob = (Object *)ale->id; /* may not be object until we actually check! */
-		
+
 		AnimData *adt = ale->adt;
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaStrip *strip;
-		
+
 		/* does this belong to speaker - assumed to live on Object level only */
 		if ((GS(ale->id->name) != ID_OB) || (ob->type != OB_SPEAKER))
 			continue;
-			
+
 		/* create a new strip, and offset it to start on the current frame */
 		strip = BKE_nla_add_soundstrip(ac.scene, ob->data);
-		
+
 		strip->start += cfra;
 		strip->end   += cfra;
-		
+
 		/* firstly try adding strip to our current track, but if that fails, add to a new track */
 		if (BKE_nlatrack_add_strip(nlt, strip) == 0) {
-			/* trying to add to the current failed (no space), 
+			/* trying to add to the current failed (no space),
 			 * so add a new track to the stack, and add to that...
 			 */
 			nlt = BKE_nlatrack_add(adt, NULL);
 			BKE_nlatrack_add_strip(nlt, strip);
 		}
-		
+
 		/* auto-name it */
 		BKE_nlastrip_validate_name(adt, strip);
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* refresh auto strip properties */
 	ED_nla_postop_refresh(&ac);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -895,11 +895,11 @@ void NLA_OT_soundclip_add(wmOperatorType *ot)
 	ot->name = "Add Sound Clip";
 	ot->idname = "NLA_OT_soundclip_add";
 	ot->description = "Add a strip for controlling when speaker plays its sound clip";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_add_sound_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -911,28 +911,28 @@ void NLA_OT_soundclip_add(wmOperatorType *ot)
 static int nlaedit_add_meta_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-	
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* for each track, find pairs of strips to add transitions to */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		AnimData *adt = ale->adt;
 		NlaStrip *strip;
-		
+
 		/* create meta-strips from the continuous chains of selected strips */
 		BKE_nlastrips_make_metas(&nlt->strips, 0);
-		
+
 		/* name the metas */
 		for (strip = nlt->strips.first; strip; strip = strip->next) {
 			/* auto-name this strip if selected (that means it is a meta) */
@@ -940,13 +940,13 @@ static int nlaedit_add_meta_exec(bContext *C, wmOperator *UNUSED(op))
 				BKE_nlastrip_validate_name(adt, strip);
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -957,11 +957,11 @@ void NLA_OT_meta_add(wmOperatorType *ot)
 	ot->name = "Add Meta-Strips";
 	ot->idname = "NLA_OT_meta_add";
 	ot->description = "Add new meta-strips incorporating the selected strips";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_add_meta_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -972,33 +972,33 @@ void NLA_OT_meta_add(wmOperatorType *ot)
 static int nlaedit_remove_meta_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-	
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* for each track, find pairs of strips to add transitions to */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
-		
+
 		/* clear all selected meta-strips, regardless of whether they are temporary or not */
 		BKE_nlastrips_clear_metas(&nlt->strips, 1, 0);
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -1009,11 +1009,11 @@ void NLA_OT_meta_remove(wmOperatorType *ot)
 	ot->name = "Remove Meta-Strips";
 	ot->idname = "NLA_OT_meta_remove";
 	ot->description = "Separate out the strips held by the selected meta-strips";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_remove_meta_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -1022,27 +1022,27 @@ void NLA_OT_meta_remove(wmOperatorType *ot)
 /* Duplicates the selected NLA-Strips, putting them on new tracks above the one
  * the originals were housed in.
  */
- 
+
 static int nlaedit_duplicate_exec(bContext *C, wmOperator *op)
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	bool linked = RNA_boolean_get(op->ptr, "linked");
 	bool done = false;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
-	/* duplicate strips in tracks starting from the last one so that we're 
+
+	/* duplicate strips in tracks starting from the last one so that we're
 	 * less likely to duplicate strips we just duplicated...
 	 */
 	for (ale = anim_data.last; ale; ale = ale->prev) {
@@ -1050,46 +1050,46 @@ static int nlaedit_duplicate_exec(bContext *C, wmOperator *op)
 		AnimData *adt = ale->adt;
 		NlaStrip *strip, *nstrip, *next;
 		NlaTrack *track;
-		
+
 		for (strip = nlt->strips.first; strip; strip = next) {
 			next = strip->next;
-			
+
 			/* if selected, split the strip at its midpoint */
 			if (strip->flag & NLASTRIP_FLAG_SELECT) {
 				/* make a copy (assume that this is possible) */
 				nstrip = BKE_nlastrip_copy(strip, linked);
-				
+
 				/* in case there's no space in the track above, or we haven't got a reference to it yet, try adding */
 				if (BKE_nlatrack_add_strip(nlt->next, nstrip) == 0) {
 					/* need to add a new track above the one above the current one
-					 *	- if the current one is the last one, nlt->next will be NULL, which defaults to adding 
+					 *	- if the current one is the last one, nlt->next will be NULL, which defaults to adding
 					 *	  at the top of the stack anyway...
 					 */
 					track = BKE_nlatrack_add(adt, nlt->next);
 					BKE_nlatrack_add_strip(track, nstrip);
 				}
-				
+
 				/* deselect the original and the active flag */
 				strip->flag &= ~(NLASTRIP_FLAG_SELECT | NLASTRIP_FLAG_ACTIVE);
-				
+
 				/* auto-name newly created strip */
 				BKE_nlastrip_validate_name(adt, nstrip);
-				
+
 				done = true;
 			}
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	if (done) {
 		/* refresh auto strip properties */
 		ED_nla_postop_refresh(&ac);
-		
+
 		/* set notifier that things have changed */
 		WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-		
+
 		/* done */
 		return OPERATOR_FINISHED;
 	}
@@ -1100,7 +1100,7 @@ static int nlaedit_duplicate_exec(bContext *C, wmOperator *op)
 static int nlaedit_duplicate_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event))
 {
 	nlaedit_duplicate_exec(C, op);
-	
+
 	RNA_enum_set(op->ptr, "mode", TFM_TRANSLATION);
 	WM_operator_name_call(C, "TRANSFORM_OT_transform", WM_OP_INVOKE_REGION_WIN, op->ptr);
 
@@ -1113,18 +1113,18 @@ void NLA_OT_duplicate(wmOperatorType *ot)
 	ot->name = "Duplicate Strips";
 	ot->idname = "NLA_OT_duplicate";
 	ot->description = "Duplicate selected NLA-Strips, adding the new strips in new tracks above the originals";
-	
+
 	/* api callbacks */
 	ot->invoke = nlaedit_duplicate_invoke;
 	ot->exec = nlaedit_duplicate_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-	
+
 	/* own properties */
 	ot->prop = RNA_def_boolean(ot->srna, "linked", false, "Linked", "When duplicating strips, assign new copies of the actions they use");
-	
+
 	/* to give to transform */
 	RNA_def_enum(ot->srna, "mode", rna_enum_transform_mode_types, TFM_TRANSLATION, "Mode", "");
 }
@@ -1135,52 +1135,52 @@ void NLA_OT_duplicate(wmOperatorType *ot)
 static int nlaedit_delete_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* for each NLA-Track, delete all selected strips */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaStrip *strip, *nstrip;
-		
+
 		for (strip = nlt->strips.first; strip; strip = nstrip) {
 			nstrip = strip->next;
-			
+
 			/* if selected, delete */
 			if (strip->flag & NLASTRIP_FLAG_SELECT) {
 				/* if a strip either side of this was a transition, delete those too */
-				if ((strip->prev) && (strip->prev->type == NLASTRIP_TYPE_TRANSITION)) 
+				if ((strip->prev) && (strip->prev->type == NLASTRIP_TYPE_TRANSITION))
 					BKE_nlastrip_free(&nlt->strips, strip->prev);
 				if ((nstrip) && (nstrip->type == NLASTRIP_TYPE_TRANSITION)) {
 					nstrip = nstrip->next;
 					BKE_nlastrip_free(&nlt->strips, strip->next);
 				}
-				
+
 				/* finally, delete this strip */
 				BKE_nlastrip_free(&nlt->strips, strip);
 			}
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* refresh auto strip properties */
 	ED_nla_postop_refresh(&ac);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -1191,18 +1191,18 @@ void NLA_OT_delete(wmOperatorType *ot)
 	ot->name = "Delete Strips";
 	ot->idname = "NLA_OT_delete";
 	ot->description = "Delete selected strips";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_delete_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
 
 /* ******************** Split Strips Operator ***************************** */
 /* Splits the selected NLA-Strips into two strips at the midpoint of the strip */
-// TODO's? 
+// TODO's?
 //  - multiple splits
 //  - variable-length splits?
 
@@ -1211,9 +1211,9 @@ static void nlaedit_split_strip_actclip(AnimData *adt, NlaTrack *nlt, NlaStrip *
 {
 	NlaStrip *nstrip;
 	float splitframe, splitaframe;
-	
-	/* calculate the frames to do the splitting at 
-	 *	- use current frame if within extents of strip 
+
+	/* calculate the frames to do the splitting at
+	 *	- use current frame if within extents of strip
 	 */
 	if ((cfra > strip->start) && (cfra < strip->end)) {
 		/* use the current frame */
@@ -1223,14 +1223,14 @@ static void nlaedit_split_strip_actclip(AnimData *adt, NlaTrack *nlt, NlaStrip *
 	else {
 		/* split in the middle */
 		float len;
-			
+
 		/* strip extents */
 		len = strip->end - strip->start;
 		if (IS_EQF(len, 0.0f))
 			return;
 		else
 			splitframe = strip->start + (len / 2.0f);
-			
+
 		/* action range */
 		len = strip->actend - strip->actstart;
 		if (IS_EQF(len, 0.0f))
@@ -1238,28 +1238,28 @@ static void nlaedit_split_strip_actclip(AnimData *adt, NlaTrack *nlt, NlaStrip *
 		else
 			splitaframe = strip->actstart + (len / 2.0f);
 	}
-	
+
 	/* make a copy (assume that this is possible) and append
 	 * it immediately after the current strip
 	 */
 	nstrip = BKE_nlastrip_copy(strip, true);
 	BLI_insertlinkafter(&nlt->strips, strip, nstrip);
-	
-	/* set the endpoint of the first strip and the start of the new strip 
+
+	/* set the endpoint of the first strip and the start of the new strip
 	 * to the splitframe values calculated above
 	 */
 	strip->end = splitframe;
 	nstrip->start = splitframe;
-	
+
 	if ((splitaframe > strip->actstart) && (splitaframe < strip->actend)) {
 		/* only do this if we're splitting down the middle...  */
 		strip->actend = splitaframe;
 		nstrip->actstart = splitaframe;
 	}
-	
+
 	/* clear the active flag from the copy */
 	nstrip->flag &= ~NLASTRIP_FLAG_ACTIVE;
-	
+
 	/* auto-name the new strip */
 	BKE_nlastrip_validate_name(adt, nstrip);
 }
@@ -1276,28 +1276,28 @@ static void nlaedit_split_strip_meta(NlaTrack *nlt, NlaStrip *strip)
 static int nlaedit_split_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* for each NLA-Track, split all selected strips into two strips */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		AnimData *adt = ale->adt;
 		NlaStrip *strip, *next;
-		
+
 		for (strip = nlt->strips.first; strip; strip = next) {
 			next = strip->next;
-			
+
 			/* if selected, split the strip at its midpoint */
 			if (strip->flag & NLASTRIP_FLAG_SELECT) {
 				/* splitting method depends on the type of strip */
@@ -1305,27 +1305,27 @@ static int nlaedit_split_exec(bContext *C, wmOperator *UNUSED(op))
 					case NLASTRIP_TYPE_CLIP: /* action-clip */
 						nlaedit_split_strip_actclip(adt, nlt, strip, (float)ac.scene->r.cfra);
 						break;
-						
+
 					case NLASTRIP_TYPE_META: /* meta-strips need special handling */
 						nlaedit_split_strip_meta(nlt, strip);
 						break;
-					
+
 					default: /* for things like Transitions, do not split! */
 						break;
 				}
 			}
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* refresh auto strip properties */
 	ED_nla_postop_refresh(&ac);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -1336,11 +1336,11 @@ void NLA_OT_split(wmOperatorType *ot)
 	ot->name = "Split Strips";
 	ot->idname = "NLA_OT_split";
 	ot->description = "Split selected strips at their midpoints";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_split_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -1351,34 +1351,34 @@ void NLA_OT_split(wmOperatorType *ot)
 static int nlaedit_bake_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
 //	int flag = 0;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_ANIMDATA | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* for each AnimData block, bake strips to animdata... */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		//BKE_nla_bake(ac.scene, ale->id, ale->data, flag);
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* refresh auto strip properties */
 	ED_nla_postop_refresh(&ac);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -1390,11 +1390,11 @@ static void UNUSED_FUNCTION(NLA_OT_bake)(wmOperatorType *ot)
 	ot->name = "Bake Strips";
 	ot->idname = "NLA_OT_bake";
 	ot->description = "Bake all strips of selected AnimData blocks";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_bake_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -1408,44 +1408,44 @@ static void UNUSED_FUNCTION(NLA_OT_bake)(wmOperatorType *ot)
 static int nlaedit_toggle_mute_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* go over all selected strips */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaStrip *strip;
-		
+
 		/* for every selected strip, toggle muting  */
 		for (strip = nlt->strips.first; strip; strip = strip->next) {
 			if (strip->flag & NLASTRIP_FLAG_SELECT) {
 				/* just flip the mute flag for now */
 				// TODO: have a pre-pass to check if mute all or unmute all?
 				strip->flag ^= NLASTRIP_FLAG_MUTED;
-				
+
 				/* tag AnimData to get recalculated */
 				ale->update |= ANIM_UPDATE_DEPS;
 			}
 		}
 	}
-	
+
 	/* cleanup */
 	ANIM_animdata_update(&ac, &anim_data);
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -1456,11 +1456,11 @@ void NLA_OT_mute_toggle(wmOperatorType *ot)
 	ot->name = "Toggle Muting";
 	ot->idname = "NLA_OT_mute_toggle";
 	ot->description = "Mute or un-mute selected strips";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_toggle_mute_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -1471,35 +1471,35 @@ void NLA_OT_mute_toggle(wmOperatorType *ot)
 static int nlaedit_swap_exec(bContext *C, wmOperator *op)
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* consider each track in turn */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
-		
+
 		NlaStrip *strip, *stripN = NULL;
 		NlaStrip *sa = NULL, *sb = NULL;
-		
+
 		/* make temporary metastrips so that entire islands of selections can be moved around */
 		BKE_nlastrips_make_metas(&nlt->strips, 1);
-		
-		/* special case: if there is only 1 island (i.e. temp meta BUT NOT unselected/normal/normal-meta strips) left after this, 
+
+		/* special case: if there is only 1 island (i.e. temp meta BUT NOT unselected/normal/normal-meta strips) left after this,
 		 * and this island has two strips inside it, then we should be able to just swap these still...
 		 */
 		if (BLI_listbase_is_empty(&nlt->strips) == false) {
 			NlaStrip *mstrip = (NlaStrip *)nlt->strips.first;
-			
+
 			if ((mstrip->flag & NLASTRIP_FLAG_TEMP_META) &&
 			    (BLI_listbase_count_at_most(&mstrip->strips, 3) == 2))
 			{
@@ -1507,13 +1507,13 @@ static int nlaedit_swap_exec(bContext *C, wmOperator *op)
 				BKE_nlastrips_clear_metas(&nlt->strips, 0, 1);
 			}
 		}
-		
+
 		/* get two selected strips only (these will be metas due to prev step) to operate on
 		 *  - only allow swapping 2, as with more the context becomes unclear
 		 */
 		for (strip = nlt->strips.first; strip; strip = stripN) {
 			stripN = strip->next;
-			
+
 			if (strip->flag & NLASTRIP_FLAG_SELECT) {
 				/* first or second strip? */
 				if (sa == NULL) {
@@ -1530,10 +1530,10 @@ static int nlaedit_swap_exec(bContext *C, wmOperator *op)
 				}
 			}
 		}
-		
+
 		if (strip) {
 			/* too many selected warning */
-			BKE_reportf(op->reports, RPT_WARNING, 
+			BKE_reportf(op->reports, RPT_WARNING,
 			            "Too many clusters of strips selected in NLA Track (%s): needs exactly 2 to be selected",
 			            nlt->name);
 		}
@@ -1548,11 +1548,11 @@ static int nlaedit_swap_exec(bContext *C, wmOperator *op)
 		}
 		else {
 			float nsa[2], nsb[2];
-			
+
 			/* remove these strips from the track, so that we can test if they can fit in the proposed places */
 			BLI_remlink(&nlt->strips, sa);
 			BLI_remlink(&nlt->strips, sb);
-			
+
 			/* calculate new extents for strips */
 			/* a --> b */
 			nsa[0] = sb->start;
@@ -1560,16 +1560,16 @@ static int nlaedit_swap_exec(bContext *C, wmOperator *op)
 			/* b --> a */
 			nsb[0] = sa->start;
 			nsb[1] = sa->start + (sb->end - sb->start);
-			
+
 			/* check if the track has room for the strips to be swapped */
-			if (BKE_nlastrips_has_space(&nlt->strips, nsa[0], nsa[1]) && 
+			if (BKE_nlastrips_has_space(&nlt->strips, nsa[0], nsa[1]) &&
 			    BKE_nlastrips_has_space(&nlt->strips, nsb[0], nsb[1]))
 			{
 				/* set new extents for strips then */
 				sa->start = nsa[0];
 				sa->end   = nsa[1];
 				BKE_nlameta_flush_transforms(sa);
-				
+
 				sb->start = nsb[0];
 				sb->end   = nsb[1];
 				BKE_nlameta_flush_transforms(sb);
@@ -1586,25 +1586,25 @@ static int nlaedit_swap_exec(bContext *C, wmOperator *op)
 					            sa->name, sb->name);
 				}
 			}
-			
+
 			/* add strips back to track now */
 			BKE_nlatrack_add_strip(nlt, sa);
 			BKE_nlatrack_add_strip(nlt, sb);
 		}
-		
+
 		/* clear (temp) metastrips */
 		BKE_nlastrips_clear_metas(&nlt->strips, 0, 1);
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* refresh auto strip properties */
 	ED_nla_postop_refresh(&ac);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -1615,11 +1615,11 @@ void NLA_OT_swap(wmOperatorType *ot)
 	ot->name = "Swap Strips";
 	ot->idname = "NLA_OT_swap";
 	ot->description = "Swap order of selected strips within tracks";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_swap_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -1630,19 +1630,19 @@ void NLA_OT_swap(wmOperatorType *ot)
 static int nlaedit_move_up_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* since we're potentially moving strips from lower tracks to higher tracks, we should
 	 * loop over the tracks in reverse order to avoid moving earlier strips up multiple tracks
 	 */
@@ -1650,15 +1650,15 @@ static int nlaedit_move_up_exec(bContext *C, wmOperator *UNUSED(op))
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaTrack *nltn = nlt->next;
 		NlaStrip *strip, *stripn;
-		
+
 		/* if this track has no tracks after it, skip for now... */
 		if (nltn == NULL)
 			continue;
-		
+
 		/* for every selected strip, try to move */
 		for (strip = nlt->strips.first; strip; strip = stripn) {
 			stripn = strip->next;
-			
+
 			if (strip->flag & NLASTRIP_FLAG_SELECT) {
 				/* check if the track above has room for this strip */
 				if (BKE_nlatrack_has_space(nltn, strip->start, strip->end)) {
@@ -1669,16 +1669,16 @@ static int nlaedit_move_up_exec(bContext *C, wmOperator *UNUSED(op))
 			}
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* refresh auto strip properties */
 	ED_nla_postop_refresh(&ac);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -1689,11 +1689,11 @@ void NLA_OT_move_up(wmOperatorType *ot)
 	ot->name = "Move Strips Up";
 	ot->idname = "NLA_OT_move_up";
 	ot->description = "Move selected strips up a track if there's room";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_move_up_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -1704,19 +1704,19 @@ void NLA_OT_move_up(wmOperatorType *ot)
 static int nlaedit_move_down_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* loop through the tracks in normal order, since we're pushing strips down,
 	 * strips won't get operated on twice
 	 */
@@ -1724,15 +1724,15 @@ static int nlaedit_move_down_exec(bContext *C, wmOperator *UNUSED(op))
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaTrack *nltp = nlt->prev;
 		NlaStrip *strip, *stripn;
-		
+
 		/* if this track has no tracks before it, skip for now... */
 		if (nltp == NULL)
 			continue;
-		
+
 		/* for every selected strip, try to move */
 		for (strip = nlt->strips.first; strip; strip = stripn) {
 			stripn = strip->next;
-			
+
 			if (strip->flag & NLASTRIP_FLAG_SELECT) {
 				/* check if the track below has room for this strip */
 				if (BKE_nlatrack_has_space(nltp, strip->start, strip->end)) {
@@ -1743,16 +1743,16 @@ static int nlaedit_move_down_exec(bContext *C, wmOperator *UNUSED(op))
 			}
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* refresh auto strip properties */
 	ED_nla_postop_refresh(&ac);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -1763,11 +1763,11 @@ void NLA_OT_move_down(wmOperatorType *ot)
 	ot->name = "Move Strips Down";
 	ot->idname = "NLA_OT_move_down";
 	ot->description = "Move selected strips down a track if there's room";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_move_down_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -1778,26 +1778,26 @@ void NLA_OT_move_down(wmOperatorType *ot)
 static int nlaedit_sync_actlen_exec(bContext *C, wmOperator *op)
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
 	const bool active_only = RNA_boolean_get(op->ptr, "active");
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	if (active_only) filter |= ANIMFILTER_ACTIVE;
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* for each NLA-Track, apply scale of all selected strips */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaStrip *strip;
-		
+
 		for (strip = nlt->strips.first; strip; strip = strip->next) {
 			/* strip selection/active status check */
 			if (active_only) {
@@ -1808,27 +1808,27 @@ static int nlaedit_sync_actlen_exec(bContext *C, wmOperator *op)
 				if ((strip->flag & NLASTRIP_FLAG_SELECT) == 0)
 					continue;
 			}
-			
+
 			/* must be action-clip only (transitions don't have scale) */
 			if (strip->type == NLASTRIP_TYPE_CLIP) {
-				if (strip->act == NULL) 
+				if (strip->act == NULL)
 					continue;
-					
+
 				/* recalculate the length of the action */
 				calc_action_range(strip->act, &strip->actstart, &strip->actend, 0);
-				
+
 				/* adjust the strip extents in response to this */
 				BKE_nlastrip_recalculate_bounds(strip);
 			}
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -1839,14 +1839,14 @@ void NLA_OT_action_sync_length(wmOperatorType *ot)
 	ot->name = "Sync Action Length";
 	ot->idname = "NLA_OT_action_sync_length";
 	ot->description = "Synchronize the length of the referenced Action with the length used in the strip";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_sync_actlen_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-	
+
 	/* properties */
 	ot->prop = RNA_def_boolean(ot->srna, "active", 1, "Active Strip Only", "Only sync the active length for the active strip");
 }
@@ -1858,19 +1858,19 @@ static int nlaedit_make_single_user_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	Main *bmain = CTX_data_main(C);
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* Ensure that each action used only has a single user
 	 *   - This is done in reverse order so that the original strips are
 	 *     likely to still get to keep their action
@@ -1878,34 +1878,34 @@ static int nlaedit_make_single_user_exec(bContext *C, wmOperator *UNUSED(op))
 	for (ale = anim_data.last; ale; ale = ale->prev) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaStrip *strip;
-		
+
 		for (strip = nlt->strips.last; strip; strip = strip->prev) {
 			/* must be action-clip only (as only these have actions) */
 			if ((strip->flag & NLASTRIP_FLAG_SELECT) && (strip->type == NLASTRIP_TYPE_CLIP)) {
-				if (strip->act == NULL) 
+				if (strip->act == NULL)
 					continue;
-				
+
 				/* multi-user? */
 				if (ID_REAL_USERS(strip->act) > 1) {
 					/* make a new copy of the action for us to use (it will have 1 user already) */
 					bAction *new_action = BKE_action_copy(bmain, strip->act);
-					
+
 					/* decrement user count of our existing action */
 					id_us_min(&strip->act->id);
-					
+
 					/* switch to the new copy */
 					strip->act = new_action;
 				}
 			}
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -1916,12 +1916,12 @@ void NLA_OT_make_single_user(wmOperatorType *ot)
 	ot->name = "Make Single User";
 	ot->idname = "NLA_OT_make_single_user";
 	ot->description = "Ensure that each action is only used once in the set of strips selected";
-	
+
 	/* api callbacks */
 	ot->invoke = WM_operator_confirm;
 	ot->exec = nlaedit_make_single_user_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -1934,12 +1934,12 @@ static short bezt_apply_nlamapping(KeyframeEditData *ked, BezTriple *bezt)
 {
 	/* NLA-strip which has this scaling is stored in ked->data */
 	NlaStrip *strip = (NlaStrip *)ked->data;
-	
+
 	/* adjust all the times */
 	bezt->vec[0][0] = nlastrip_get_frame(strip, bezt->vec[0][0], NLATIME_CONVERT_MAP);
 	bezt->vec[1][0] = nlastrip_get_frame(strip, bezt->vec[1][0], NLATIME_CONVERT_MAP);
 	bezt->vec[2][0] = nlastrip_get_frame(strip, bezt->vec[2][0], NLATIME_CONVERT_MAP);
-	
+
 	/* nothing to return or else we exit */
 	return 0;
 }
@@ -1948,61 +1948,61 @@ static int nlaedit_apply_scale_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	Main *bmain = CTX_data_main(C);
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	KeyframeEditData ked = {{NULL}};
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* for each NLA-Track, apply scale of all selected strips */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaStrip *strip;
-		
+
 		for (strip = nlt->strips.first; strip; strip = strip->next) {
 			/* strip must be selected, and must be action-clip only (transitions don't have scale) */
 			if ((strip->flag & NLASTRIP_FLAG_SELECT) && (strip->type == NLASTRIP_TYPE_CLIP)) {
 				/* if the referenced action is used by other strips, make this strip use its own copy */
-				if (strip->act == NULL) 
+				if (strip->act == NULL)
 					continue;
 				if (strip->act->id.us > 1) {
 					/* make a copy of the Action to work on */
 					bAction *act = BKE_action_copy(bmain, strip->act);
-					
+
 					/* set this as the new referenced action, decrementing the users of the old one */
 					id_us_min(&strip->act->id);
 					strip->act = act;
 				}
-				
+
 				/* setup iterator, and iterate over all the keyframes in the action, applying this scaling */
 				ked.data = strip;
 				ANIM_animchanneldata_keyframes_loop(&ked, ac.ads, strip->act, ALE_ACT, NULL, bezt_apply_nlamapping, calchandles_fcurve);
-				
+
 				/* clear scale of strip now that it has been applied,
 				 * and recalculate the extents of the action now that it has been scaled
-				 * but leave everything else alone 
+				 * but leave everything else alone
 				 */
 				strip->scale = 1.0f;
 				calc_action_range(strip->act, &strip->actstart, &strip->actend, 0);
 			}
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -2013,11 +2013,11 @@ void NLA_OT_apply_scale(wmOperatorType *ot)
 	ot->name = "Apply Scale";
 	ot->idname = "NLA_OT_apply_scale";
 	ot->description = "Apply scaling of selected strips to their referenced Actions";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_apply_scale_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -2028,44 +2028,44 @@ void NLA_OT_apply_scale(wmOperatorType *ot)
 static int nlaedit_clear_scale_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* for each NLA-Track, reset scale of all selected strips */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaStrip *strip;
-		
+
 		for (strip = nlt->strips.first; strip; strip = strip->next) {
 			/* strip must be selected, and must be action-clip only (transitions don't have scale) */
 			if ((strip->flag & NLASTRIP_FLAG_SELECT) && (strip->type == NLASTRIP_TYPE_CLIP)) {
 				PointerRNA strip_ptr;
-				
+
 				RNA_pointer_create(NULL, &RNA_NlaStrip, strip, &strip_ptr);
 				RNA_float_set(&strip_ptr, "scale", 1.0f);
 			}
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* refresh auto strip properties */
 	ED_nla_postop_refresh(&ac);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -2076,11 +2076,11 @@ void NLA_OT_clear_scale(wmOperatorType *ot)
 	ot->name = "Clear Scale";
 	ot->idname = "NLA_OT_clear_scale";
 	ot->description = "Reset scaling of selected strips";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_clear_scale_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
@@ -2100,27 +2100,27 @@ static const EnumPropertyItem prop_nlaedit_snap_types[] = {
 static int nlaedit_snap_exec(bContext *C, wmOperator *op)
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	Scene *scene;
 	int mode = RNA_enum_get(op->ptr, "type");
 	float secf;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* get some necessary vars */
 	scene = ac.scene;
 	secf = (float)FPS;
-	
+
 	/* since we may add tracks, perform this in reverse order */
 	for (ale = anim_data.last; ale; ale = ale->prev) {
 		ListBase tmp_strips = {NULL, NULL};
@@ -2128,23 +2128,23 @@ static int nlaedit_snap_exec(bContext *C, wmOperator *op)
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaStrip *strip, *stripn;
 		NlaTrack *track;
-		
+
 		/* create meta-strips from the continuous chains of selected strips */
 		BKE_nlastrips_make_metas(&nlt->strips, 1);
-		
+
 		/* apply the snapping to all the temp meta-strips, then put them in a separate list to be added
 		 * back to the original only if they still fit
 		 */
 		for (strip = nlt->strips.first; strip; strip = stripn) {
 			stripn = strip->next;
-			
+
 			if (strip->flag & NLASTRIP_FLAG_TEMP_META) {
 				float start, end;
-				
+
 				/* get the existing end-points */
 				start = strip->start;
 				end = strip->end;
-				
+
 				/* calculate new start position based on snapping mode */
 				switch (mode) {
 					case NLAEDIT_SNAP_CFRA: /* to current frame */
@@ -2163,54 +2163,54 @@ static int nlaedit_snap_exec(bContext *C, wmOperator *op)
 						strip->start = start;
 						break;
 				}
-				
+
 				/* get new endpoint based on start-point (and old length) */
 				strip->end = strip->start + (end - start);
-				
+
 				/* apply transforms to meta-strip to its children */
 				BKE_nlameta_flush_transforms(strip);
-				
+
 				/* remove strip from track, and add to the temp buffer */
 				BLI_remlink(&nlt->strips, strip);
 				BLI_addtail(&tmp_strips, strip);
 			}
 		}
-		
+
 		/* try adding each meta-strip back to the track one at a time, to make sure they'll fit */
 		for (strip = tmp_strips.first; strip; strip = stripn) {
 			stripn = strip->next;
-			
+
 			/* remove from temp-strips list */
 			BLI_remlink(&tmp_strips, strip);
-			
+
 			/* in case there's no space in the current track, try adding */
 			if (BKE_nlatrack_add_strip(nlt, strip) == 0) {
 				/* need to add a new track above the current one */
 				track = BKE_nlatrack_add(adt, nlt);
 				BKE_nlatrack_add_strip(track, strip);
-				
+
 				/* clear temp meta-strips on this new track, as we may not be able to get back to it */
 				BKE_nlastrips_clear_metas(&track->strips, 0, 1);
 			}
 		}
-		
+
 		/* remove the meta-strips now that we're done */
 		BKE_nlastrips_clear_metas(&nlt->strips, 0, 1);
-		
+
 		/* tag for recalculating the animation */
 		ale->update |= ANIM_UPDATE_DEPS;
 	}
-	
+
 	/* cleanup */
 	ANIM_animdata_update(&ac, &anim_data);
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* refresh auto strip properties */
 	ED_nla_postop_refresh(&ac);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
@@ -2221,15 +2221,15 @@ void NLA_OT_snap(wmOperatorType *ot)
 	ot->name = "Snap Strips";
 	ot->idname = "NLA_OT_snap";
 	ot->description = "Move start of strips to specified time";
-	
+
 	/* api callbacks */
 	ot->invoke = WM_menu_invoke;
 	ot->exec = nlaedit_snap_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-	
+
 	/* properties */
 	ot->prop = RNA_def_enum(ot->srna, "type", prop_nlaedit_snap_types, 0, "Type", "");
 }
@@ -2244,31 +2244,31 @@ static const EnumPropertyItem *nla_fmodifier_itemf(bContext *C, PointerRNA *UNUS
 	EnumPropertyItem *item = NULL;
 	int totitem = 0;
 	int i = 0;
-	
+
 	if (C == NULL) {
 		return rna_enum_fmodifier_type_items;
 	}
-	
+
 	/* start from 1 to skip the 'Invalid' modifier type */
 	for (i = 1; i < FMODIFIER_NUM_TYPES; i++) {
 		const FModifierTypeInfo *fmi = get_fmodifier_typeinfo(i);
 		int index;
-		
+
 		/* check if modifier is valid for this context */
 		if (fmi == NULL)
 			continue;
 		if (i == FMODIFIER_TYPE_CYCLES) /* we already have repeat... */
 			continue;
-		
+
 		index = RNA_enum_from_value(rna_enum_fmodifier_type_items, fmi->type);
 		if (index != -1) {  /* Not all types are implemented yet... */
 			RNA_enum_item_add(&item, &totitem, &rna_enum_fmodifier_type_items[index]);
 		}
 	}
-	
+
 	RNA_enum_item_end(&item, &totitem);
 	*r_free = true;
-	
+
 	return item;
 }
 
@@ -2276,28 +2276,28 @@ static const EnumPropertyItem *nla_fmodifier_itemf(bContext *C, PointerRNA *UNUS
 static int nla_fmodifier_add_exec(bContext *C, wmOperator *op)
 {
 	bAnimContext ac;
-	
+
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	FModifier *fcm;
 	int type = RNA_enum_get(op->ptr, "type");
 	const bool active_only = RNA_boolean_get(op->ptr, "only_active");
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* for each NLA-Track, add the specified modifier to all selected strips */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaStrip *strip;
-		
+
 		for (strip = nlt->strips.first; strip; strip = strip->next) {
 			/* can F-Modifier be added to the current strip? */
 			if (active_only) {
@@ -2310,14 +2310,14 @@ static int nla_fmodifier_add_exec(bContext *C, wmOperator *op)
 				if ((strip->flag & NLASTRIP_FLAG_SELECT) == 0)
 					continue;
 			}
-			
+
 			/* sound clips are not affected by FModifiers */
 			if (strip->type == NLASTRIP_TYPE_SOUND)
 				continue;
-			
+
 			/* add F-Modifier of specified type to selected, and make it the active one */
 			fcm = add_fmodifier(&strip->modifiers, type, NULL);
-			
+
 			if (fcm) {
 				set_active_fmodifier(&strip->modifiers, fcm);
 				ale->update |= ANIM_UPDATE_DEPS;
@@ -2329,37 +2329,37 @@ static int nla_fmodifier_add_exec(bContext *C, wmOperator *op)
 			}
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_update(&ac, &anim_data);
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
-	
+
 	/* done */
 	return OPERATOR_FINISHED;
 }
- 
+
 void NLA_OT_fmodifier_add(wmOperatorType *ot)
 {
 	/* identifiers */
 	ot->name = "Add F-Modifier";
 	ot->idname = "NLA_OT_fmodifier_add";
 	ot->description = "Add F-Modifier to the active/selected NLA-Strips";
-	
+
 	/* api callbacks */
 	ot->invoke = WM_menu_invoke;
 	ot->exec = nla_fmodifier_add_exec;
-	ot->poll = nlaop_poll_tweakmode_off; 
-	
+	ot->poll = nlaop_poll_tweakmode_off;
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-	
+
 	/* id-props */
 	ot->prop = RNA_def_enum(ot->srna, "type", rna_enum_fmodifier_type_items, 0, "Type", "");
 	RNA_def_enum_funcs(ot->prop, nla_fmodifier_itemf);
-	
+
 	RNA_def_boolean(ot->srna, "only_active", true, "Only Active", "Only add a F-Modifier of the specified type to the active strip");
 }
 
@@ -2372,36 +2372,36 @@ static int nla_fmodifier_copy_exec(bContext *C, wmOperator *op)
 	bAnimListElem *ale;
 	int filter;
 	bool ok = false;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-	
+
 	/* clear buffer first */
 	ANIM_fmodifiers_copybuf_free();
-	
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* for each NLA-Track, add the specified modifier to all selected strips */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaStrip *strip;
-		
+
 		for (strip = nlt->strips.first; strip; strip = strip->next) {
 			/* only add F-Modifier if on active strip? */
 			if ((strip->flag & NLASTRIP_FLAG_ACTIVE) == 0)
 				continue;
-				
+
 			// TODO: when 'active' vs 'all' boolean is added, change last param!
 			ok |= ANIM_fmodifiers_copy_to_buf(&strip->modifiers, 0);
 		}
 	}
-	
+
 	/* free temp data */
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* successful or not? */
 	if (ok == 0) {
 		BKE_report(op->reports, RPT_ERROR, "No F-Modifiers available to be copied");
@@ -2412,21 +2412,21 @@ static int nla_fmodifier_copy_exec(bContext *C, wmOperator *op)
 		return OPERATOR_FINISHED;
 	}
 }
- 
+
 void NLA_OT_fmodifier_copy(wmOperatorType *ot)
 {
 	/* identifiers */
 	ot->name = "Copy F-Modifiers";
 	ot->idname = "NLA_OT_fmodifier_copy";
 	ot->description = "Copy the F-Modifier(s) of the active NLA-Strip";
-	
+
 	/* api callbacks */
 	ot->exec = nla_fmodifier_copy_exec;
-	ot->poll = nlaop_poll_tweakmode_off; 
-	
+	ot->poll = nlaop_poll_tweakmode_off;
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-	
+
 	/* id-props */
 	//ot->prop = RNA_def_boolean(ot->srna, "all", 1, "All F-Modifiers", "Copy all the F-Modifiers, instead of just the active one");
 }
@@ -2439,23 +2439,23 @@ static int nla_fmodifier_paste_exec(bContext *C, wmOperator *op)
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter, ok = 0;
-	
+
 	const bool active_only = RNA_boolean_get(op->ptr, "only_active");
 	const bool replace = RNA_boolean_get(op->ptr, "replace");
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-	
+
 	/* get a list of the editable tracks being shown in the NLA */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT | ANIMFILTER_NODUPLIS);
 	ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
-	
+
 	/* for each NLA-Track, add the specified modifier to all selected strips */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaStrip *strip;
-		
+
 		for (strip = nlt->strips.first; strip; strip = strip->next) {
 			/* can F-Modifier be added to the current strip? */
 			if (active_only) {
@@ -2468,17 +2468,17 @@ static int nla_fmodifier_paste_exec(bContext *C, wmOperator *op)
 				if ((strip->flag & NLASTRIP_FLAG_SELECT) == 0)
 					continue;
 			}
-			
+
 			/* paste FModifiers from buffer */
 			ok += ANIM_fmodifiers_paste_from_buf(&strip->modifiers, replace, NULL);
 			ale->update |= ANIM_UPDATE_DEPS;
 		}
 	}
-	
+
 	/* clean up */
 	ANIM_animdata_update(&ac, &anim_data);
 	ANIM_animdata_freelist(&anim_data);
-	
+
 	/* successful or not? */
 	if (ok) {
 		WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_EDITED, NULL);
@@ -2489,24 +2489,24 @@ static int nla_fmodifier_paste_exec(bContext *C, wmOperator *op)
 		return OPERATOR_CANCELLED;
 	}
 }
- 
+
 void NLA_OT_fmodifier_paste(wmOperatorType *ot)
 {
 	/* identifiers */
 	ot->name = "Paste F-Modifiers";
 	ot->idname = "NLA_OT_fmodifier_paste";
 	ot->description = "Add copied F-Modifiers to the selected NLA-Strips";
-	
+
 	/* api callbacks */
 	ot->exec = nla_fmodifier_paste_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-	
+
 	/* properties */
 	RNA_def_boolean(ot->srna, "only_active", true, "Only Active", "Only paste F-Modifiers on active strip");
-	RNA_def_boolean(ot->srna, "replace", false, "Replace Existing", 
+	RNA_def_boolean(ot->srna, "replace", false, "Replace Existing",
 	                "Replace existing F-Modifiers, instead of just appending to the end of the existing list");
 }
 
diff --git a/source/blender/editors/space_nla/nla_ops.c b/source/blender/editors/space_nla/nla_ops.c
index 921d2e9c088..0c087fa67b9 100644
--- a/source/blender/editors/space_nla/nla_ops.c
+++ b/source/blender/editors/space_nla/nla_ops.c
@@ -55,21 +55,21 @@
 int nlaop_poll_tweakmode_off(bContext *C)
 {
 	Scene *scene;
-	
-	/* for now, we check 2 things: 
+
+	/* for now, we check 2 things:
 	 *  1) active editor must be NLA
-	 *	2) tweakmode is currently set as a 'per-scene' flag 
+	 *	2) tweakmode is currently set as a 'per-scene' flag
 	 *	   so that it will affect entire NLA data-sets,
-	 *	   but not all AnimData blocks will be in tweakmode for 
+	 *	   but not all AnimData blocks will be in tweakmode for
 	 *	   various reasons
 	 */
 	if (ED_operator_nla_active(C) == 0)
 		return 0;
-	
+
 	scene = CTX_data_scene(C);
 	if ((scene == NULL) || (scene->flag & SCE_NLA_EDIT_ON))
 		return 0;
-	
+
 	return 1;
 }
 
@@ -77,21 +77,21 @@ int nlaop_poll_tweakmode_off(bContext *C)
 int nlaop_poll_tweakmode_on(bContext *C)
 {
 	Scene *scene;
-	
-	/* for now, we check 2 things: 
+
+	/* for now, we check 2 things:
 	 *  1) active editor must be NLA
-	 *	2) tweakmode is currently set as a 'per-scene' flag 
+	 *	2) tweakmode is currently set as a 'per-scene' flag
 	 *	   so that it will affect entire NLA data-sets,
-	 *	   but not all AnimData blocks will be in tweakmode for 
+	 *	   but not all AnimData blocks will be in tweakmode for
 	 *	   various reasons
 	 */
 	if (ED_operator_nla_active(C) == 0)
 		return 0;
-	
+
 	scene = CTX_data_scene(C);
 	if ((scene == NULL) || !(scene->flag & SCE_NLA_EDIT_ON))
 		return 0;
-	
+
 	return 1;
 }
 
@@ -109,61 +109,61 @@ void nla_operatortypes(void)
 {
 	/* view */
 	WM_operatortype_append(NLA_OT_properties);
-	
+
 	/* channels */
 	WM_operatortype_append(NLA_OT_channels_click);
-	
+
 	WM_operatortype_append(NLA_OT_action_pushdown);
 	WM_operatortype_append(NLA_OT_action_unlink);
-	
+
 	WM_operatortype_append(NLA_OT_tracks_add);
 	WM_operatortype_append(NLA_OT_tracks_delete);
-	
+
 	WM_operatortype_append(NLA_OT_selected_objects_add);
-	
+
 	/* select */
 	WM_operatortype_append(NLA_OT_click_select);
 	WM_operatortype_append(NLA_OT_select_border);
 	WM_operatortype_append(NLA_OT_select_all_toggle);
 	WM_operatortype_append(NLA_OT_select_leftright);
-	
+
 	/* view */
 	WM_operatortype_append(NLA_OT_view_all);
 	WM_operatortype_append(NLA_OT_view_selected);
 	WM_operatortype_append(NLA_OT_view_frame);
-	
+
 	WM_operatortype_append(NLA_OT_previewrange_set);
-	
+
 	/* edit */
 	WM_operatortype_append(NLA_OT_tweakmode_enter);
 	WM_operatortype_append(NLA_OT_tweakmode_exit);
-	
+
 	WM_operatortype_append(NLA_OT_actionclip_add);
 	WM_operatortype_append(NLA_OT_transition_add);
 	WM_operatortype_append(NLA_OT_soundclip_add);
-	
+
 	WM_operatortype_append(NLA_OT_meta_add);
 	WM_operatortype_append(NLA_OT_meta_remove);
-	
+
 	WM_operatortype_append(NLA_OT_duplicate);
 	WM_operatortype_append(NLA_OT_delete);
 	WM_operatortype_append(NLA_OT_split);
-	
+
 	WM_operatortype_append(NLA_OT_mute_toggle);
-	
+
 	WM_operatortype_append(NLA_OT_swap);
 	WM_operatortype_append(NLA_OT_move_up);
 	WM_operatortype_append(NLA_OT_move_down);
-	
+
 	WM_operatortype_append(NLA_OT_action_sync_length);
-	
+
 	WM_operatortype_append(NLA_OT_make_single_user);
-	
+
 	WM_operatortype_append(NLA_OT_apply_scale);
 	WM_operatortype_append(NLA_OT_clear_scale);
-	
+
 	WM_operatortype_append(NLA_OT_snap);
-	
+
 	WM_operatortype_append(NLA_OT_fmodifier_add);
 	WM_operatortype_append(NLA_OT_fmodifier_copy);
 	WM_operatortype_append(NLA_OT_fmodifier_paste);
@@ -176,7 +176,7 @@ static void nla_keymap_channels(wmKeyMap *keymap)
 	wmKeyMapItem *kmi;
 
 	/* keymappings here are NLA-specific (different to standard channels keymap) */
-	
+
 	/* selection --------------------------------------------------------------------- */
 	/* click-select */
 	// XXX for now, only leftmouse....
@@ -184,14 +184,14 @@ static void nla_keymap_channels(wmKeyMap *keymap)
 	RNA_boolean_set(kmi->ptr, "extend", false);
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_channels_click", LEFTMOUSE, KM_PRESS, KM_SHIFT, 0);
 	RNA_boolean_set(kmi->ptr, "extend", true);
-	
+
 	/* channel operations ------------------------------------------------------------ */
 	/* add tracks */
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_tracks_add", AKEY, KM_PRESS, KM_SHIFT, 0);
 	RNA_boolean_set(kmi->ptr, "above_selected", false);
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_tracks_add", AKEY, KM_PRESS, KM_CTRL | KM_SHIFT, 0);
 	RNA_boolean_set(kmi->ptr, "above_selected", true);
-	
+
 	/* delete tracks */
 	WM_keymap_add_item(keymap, "NLA_OT_tracks_delete", XKEY, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "NLA_OT_tracks_delete", DELKEY, KM_PRESS, 0, 0);
@@ -200,14 +200,14 @@ static void nla_keymap_channels(wmKeyMap *keymap)
 static void nla_keymap_main(wmKeyConfig *keyconf, wmKeyMap *keymap)
 {
 	wmKeyMapItem *kmi;
-	
+
 	/* selection ------------------------------------------------ */
 	/* click select */
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_click_select", SELECTMOUSE, KM_PRESS, 0, 0);
 	RNA_boolean_set(kmi->ptr, "extend", false);
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_click_select", SELECTMOUSE, KM_PRESS, KM_SHIFT, 0);
 	RNA_boolean_set(kmi->ptr, "extend", true);
-		
+
 	/* select left/right */
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_select_leftright", SELECTMOUSE, KM_PRESS, KM_CTRL, 0);
 	RNA_boolean_set(kmi->ptr, "extend", false);
@@ -215,92 +215,92 @@ static void nla_keymap_main(wmKeyConfig *keyconf, wmKeyMap *keymap)
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_select_leftright", SELECTMOUSE, KM_PRESS, KM_CTRL | KM_SHIFT, 0);
 	RNA_boolean_set(kmi->ptr, "extend", true);
 	RNA_enum_set(kmi->ptr, "mode", NLAEDIT_LRSEL_TEST);
-	
+
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_select_leftright", LEFTBRACKETKEY, KM_PRESS, 0, 0);
 	RNA_boolean_set(kmi->ptr, "extend", false);
 	RNA_enum_set(kmi->ptr, "mode", NLAEDIT_LRSEL_LEFT);
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_select_leftright", RIGHTBRACKETKEY, KM_PRESS, 0, 0);
 	RNA_boolean_set(kmi->ptr, "extend", false);
 	RNA_enum_set(kmi->ptr, "mode", NLAEDIT_LRSEL_RIGHT);
-		
-	
+
+
 	/* deselect all */
 	/* TODO: uniformize with other select_all ops? */
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_select_all_toggle", AKEY, KM_PRESS, 0, 0);
 	RNA_boolean_set(kmi->ptr, "invert", false);
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_select_all_toggle", IKEY, KM_PRESS, KM_CTRL, 0);
 	RNA_boolean_set(kmi->ptr, "invert", true);
-	
+
 	/* borderselect */
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_select_border", BKEY, KM_PRESS, 0, 0);
 	RNA_boolean_set(kmi->ptr, "axis_range", false);
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_select_border", BKEY, KM_PRESS, KM_ALT, 0);
 	RNA_boolean_set(kmi->ptr, "axis_range", true);
-	
+
 	/* view ---------------------------------------------------- */
 	/* auto-set range */
 	WM_keymap_add_item(keymap, "NLA_OT_previewrange_set", PKEY, KM_PRESS, KM_CTRL | KM_ALT, 0);
-	
+
 	WM_keymap_add_item(keymap, "NLA_OT_view_all", HOMEKEY, KM_PRESS, 0, 0);
 #ifdef WITH_INPUT_NDOF
 	WM_keymap_add_item(keymap, "NLA_OT_view_all", NDOF_BUTTON_FIT, KM_PRESS, 0, 0);
 #endif
 	WM_keymap_add_item(keymap, "NLA_OT_view_selected", PADPERIOD, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "NLA_OT_view_frame", PAD0, KM_PRESS, 0, 0);
-	
+
 	/* editing ------------------------------------------------ */
-	
+
 	/* add strips */
 	WM_keymap_add_item(keymap, "NLA_OT_actionclip_add", AKEY, KM_PRESS, KM_SHIFT, 0);
 	WM_keymap_add_item(keymap, "NLA_OT_transition_add", TKEY, KM_PRESS, KM_SHIFT, 0);
 	WM_keymap_add_item(keymap, "NLA_OT_soundclip_add", KKEY, KM_PRESS, KM_SHIFT, 0);
-	
+
 	/* meta-strips */
 	WM_keymap_add_item(keymap, "NLA_OT_meta_add", GKEY, KM_PRESS, KM_SHIFT, 0);
 	WM_keymap_add_item(keymap, "NLA_OT_meta_remove", GKEY, KM_PRESS, KM_ALT, 0);
-		
+
 	/* duplicate */
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_duplicate", DKEY, KM_PRESS, KM_SHIFT, 0);
 	RNA_boolean_set(kmi->ptr, "linked", false);
-	
+
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_duplicate", DKEY, KM_PRESS, KM_ALT, 0);
 	RNA_boolean_set(kmi->ptr, "linked", true);
-	
+
 	/* single user */
 	WM_keymap_add_item(keymap, "NLA_OT_make_single_user", UKEY, KM_PRESS, 0, 0);
-		
+
 	/* delete */
 	WM_keymap_add_item(keymap, "NLA_OT_delete", XKEY, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "NLA_OT_delete", DELKEY, KM_PRESS, 0, 0);
 
 	/* split */
 	WM_keymap_add_item(keymap, "NLA_OT_split", YKEY, KM_PRESS, 0, 0);
-	
+
 	/* toggles */
 	WM_keymap_add_item(keymap, "NLA_OT_mute_toggle", HKEY, KM_PRESS, 0, 0);
-	
+
 	/* swap */
 	WM_keymap_add_item(keymap, "NLA_OT_swap", FKEY, KM_PRESS, KM_ALT, 0);
-		
+
 	/* move up */
 	WM_keymap_add_item(keymap, "NLA_OT_move_up", PAGEUPKEY, KM_PRESS, 0, 0);
 	/* move down */
 	WM_keymap_add_item(keymap, "NLA_OT_move_down", PAGEDOWNKEY, KM_PRESS, 0, 0);
-	
+
 	/* apply scale */
 	WM_keymap_add_item(keymap, "NLA_OT_apply_scale", AKEY, KM_PRESS, KM_CTRL, 0);
 	/* clear scale */
 	WM_keymap_add_item(keymap, "NLA_OT_clear_scale", SKEY, KM_PRESS, KM_ALT, 0);
-	
+
 	/* snap */
 	WM_keymap_add_item(keymap, "NLA_OT_snap", SKEY, KM_PRESS, KM_SHIFT, 0);
-	
+
 	/* add f-modifier */
 	WM_keymap_add_item(keymap, "NLA_OT_fmodifier_add", MKEY, KM_PRESS, KM_CTRL | KM_SHIFT, 0);
-	
+
 	/* transform system */
 	transform_keymap_for_space(keyconf, keymap, SPACE_NLA);
-	
+
 	/* special markers hotkeys for anim editors: see note in definition of this function */
 	ED_marker_keymap_animedit_conflictfree(keymap);
 }
@@ -311,35 +311,35 @@ void nla_keymap(wmKeyConfig *keyconf)
 {
 	wmKeyMap *keymap;
 	wmKeyMapItem *kmi;
-	
+
 	/* keymap for all regions ------------------------------------------- */
 	keymap = WM_keymap_find(keyconf, "NLA Generic", SPACE_NLA, 0);
-	
+
 	/* region management */
 	WM_keymap_add_item(keymap, "NLA_OT_properties", NKEY, KM_PRESS, 0, 0);
-	
+
 	/* tweakmode
 	 *	- enter and exit are separate operators with the same hotkey...
 	 *	  This works as they use different poll()'s
 	 */
 	WM_keymap_add_item(keymap, "NLA_OT_tweakmode_enter", TABKEY, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "NLA_OT_tweakmode_exit", TABKEY, KM_PRESS, 0, 0);
-	
+
 	/* tweakmode for stashed actions
 	 * - similar to normal tweakmode, except we mark the tracks as being "solo"
 	 *   too so that the action can be edited in isolation
 	 */
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_tweakmode_enter", TABKEY, KM_PRESS, KM_SHIFT, 0);
 	RNA_boolean_set(kmi->ptr, "isolate_action", true);
-	
+
 	kmi = WM_keymap_add_item(keymap, "NLA_OT_tweakmode_exit", TABKEY, KM_PRESS, KM_SHIFT, 0);
 	RNA_boolean_set(kmi->ptr, "isolate_action", true);
-	
+
 	/* find (i.e. a shortcut for setting the name filter) */
 	WM_keymap_add_item(keymap, "ANIM_OT_channels_find", FKEY, KM_PRESS, KM_CTRL, 0);
-	
+
 	/* channels ---------------------------------------------------------- */
-	/* Channels are not directly handled by the NLA Editor module, but are inherited from the Animation module. 
+	/* Channels are not directly handled by the NLA Editor module, but are inherited from the Animation module.
 	 * Most of the relevant operations, keymaps, drawing, etc. can therefore all be found in that module instead, as there
 	 * are many similarities with the other Animation Editors.
 	 *
@@ -347,7 +347,7 @@ void nla_keymap(wmKeyConfig *keyconf)
 	 */
 	keymap = WM_keymap_find(keyconf, "NLA Channels", SPACE_NLA, 0);
 	nla_keymap_channels(keymap);
-	
+
 	/* data ------------------------------------------------------------- */
 	keymap = WM_keymap_find(keyconf, "NLA Editor", SPACE_NLA, 0);
 	nla_keymap_main(keyconf, keymap);
diff --git a/source/blender/editors/space_nla/nla_select.c b/source/blender/editors/space_nla/nla_select.c
index 2057fe5c022..8c9372f0612 100644
--- a/source/blender/editors/space_nla/nla_select.c
+++ b/source/blender/editors/space_nla/nla_select.c
@@ -89,7 +89,7 @@ enum {
 	DESELECT_STRIPS_TEST,
 	DESELECT_STRIPS_CLEARACTIVE,
 } /*eDeselectNlaStrips*/;
- 
+
 /* Deselects strips in the NLA Editor
  *	- This is called by the deselect all operator, as well as other ones!
  *
@@ -105,20 +105,20 @@ static void deselect_nla_strips(bAnimContext *ac, short test, short sel)
 	bAnimListElem *ale;
 	int filter;
 	short smode;
-	
+
 	/* determine type-based settings */
 	// FIXME: double check whether ANIMFILTER_LIST_VISIBLE is needed!
 	filter = (ANIMFILTER_DATA_VISIBLE);
-	
+
 	/* filter data */
 	ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
-	
+
 	/* See if we should be selecting or deselecting */
 	if (test == DESELECT_STRIPS_TEST) {
 		for (ale = anim_data.first; ale; ale = ale->next) {
 			NlaTrack *nlt = (NlaTrack *)ale->data;
 			NlaStrip *strip;
-			
+
 			/* if any strip is selected, break out, since we should now be deselecting */
 			for (strip = nlt->strips.first; strip; strip = strip->next) {
 				if (strip->flag & NLASTRIP_FLAG_SELECT) {
@@ -126,32 +126,32 @@ static void deselect_nla_strips(bAnimContext *ac, short test, short sel)
 					break;
 				}
 			}
-			
+
 			if (sel == SELECT_SUBTRACT)
 				break;
 		}
 	}
-	
+
 	/* convert selection modes to selection modes */
 	smode = selmodes_to_flagmodes(sel);
-	
+
 	/* Now set the flags */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaStrip *strip;
-		
+
 		/* apply same selection to all strips */
 		for (strip = nlt->strips.first; strip; strip = strip->next) {
 			/* set selection */
 			if (test != DESELECT_STRIPS_CLEARACTIVE)
 				ACHANNEL_SET_FLAG(strip, smode, NLASTRIP_FLAG_SELECT);
-			
+
 			/* clear active flag */
 			// TODO: for clear active, do we want to limit this to only doing this on a certain set of tracks though?
 			strip->flag &= ~NLASTRIP_FLAG_ACTIVE;
 		}
 	}
-	
+
 	/* Cleanup */
 	ANIM_animdata_freelist(&anim_data);
 }
@@ -161,37 +161,37 @@ static void deselect_nla_strips(bAnimContext *ac, short test, short sel)
 static int nlaedit_deselectall_exec(bContext *C, wmOperator *op)
 {
 	bAnimContext ac;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* 'standard' behavior - check if selected, then apply relevant selection */
 	if (RNA_boolean_get(op->ptr, "invert"))
 		deselect_nla_strips(&ac, DESELECT_STRIPS_NOTEST, SELECT_INVERT);
 	else
 		deselect_nla_strips(&ac, DESELECT_STRIPS_TEST, SELECT_ADD);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_SELECTED, NULL);
-	
+
 	return OPERATOR_FINISHED;
 }
- 
+
 void NLA_OT_select_all_toggle(wmOperatorType *ot)
 {
 	/* identifiers */
 	ot->name = "(De)select All";
 	ot->idname = "NLA_OT_select_all_toggle";
 	ot->description = "Select or deselect all NLA-Strips";
-	
+
 	/* api callbacks */
 	ot->exec = nlaedit_deselectall_exec;
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER /*|OPTYPE_UNDO*/;
-	
+
 	/* props */
 	ot->prop = RNA_def_boolean(ot->srna, "invert", 0, "Invert", "");
 	RNA_def_property_flag(ot->prop, PROP_SKIP_SAVE);
@@ -218,27 +218,27 @@ static void borderselect_nla_strips(bAnimContext *ac, rcti rect, short mode, sho
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	SpaceNla *snla = (SpaceNla *)ac->sl;
 	View2D *v2d = &ac->ar->v2d;
 	rctf rectf;
 	float ymin /* =(float)(-NLACHANNEL_HEIGHT(snla)) */ /* UNUSED */, ymax = 0;
-	
+
 	/* convert border-region to view coordinates */
 	UI_view2d_region_to_view(v2d, rect.xmin, rect.ymin + 2, &rectf.xmin, &rectf.ymin);
 	UI_view2d_region_to_view(v2d, rect.xmax, rect.ymax - 2, &rectf.xmax, &rectf.ymax);
-	
+
 	/* filter data */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_LIST_CHANNELS);
 	ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
-	
+
 	/* convert selection modes to selection modes */
 	selectmode = selmodes_to_flagmodes(selectmode);
-	
+
 	/* loop over data, doing border select */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		ymin = ymax - NLACHANNEL_STEP(snla);
-		
+
 		/* perform vertical suitability check (if applicable) */
 		if ((mode == NLA_BORDERSEL_FRAMERANGE) ||
 		    !((ymax < rectf.ymin) || (ymin > rectf.ymax)))
@@ -247,7 +247,7 @@ static void borderselect_nla_strips(bAnimContext *ac, rcti rect, short mode, sho
 			if (ale->type == ANIMTYPE_NLATRACK) {
 				NlaTrack *nlt = (NlaTrack *)ale->data;
 				NlaStrip *strip;
-				
+
 				/* only select strips if they fall within the required ranges (if applicable) */
 				for (strip = nlt->strips.first; strip; strip = strip->next) {
 					if ((mode == NLA_BORDERSEL_CHANNELS) ||
@@ -255,18 +255,18 @@ static void borderselect_nla_strips(bAnimContext *ac, rcti rect, short mode, sho
 					{
 						/* set selection */
 						ACHANNEL_SET_FLAG(strip, selectmode, NLASTRIP_FLAG_SELECT);
-						
+
 						/* clear active flag */
 						strip->flag &= ~NLASTRIP_FLAG_ACTIVE;
 					}
 				}
 			}
 		}
-		
+
 		/* set minimum extent to be the maximum of the next channel */
 		ymax = ymin;
 	}
-	
+
 	/* cleanup */
 	ANIM_animdata_freelist(&anim_data);
 }
@@ -280,7 +280,7 @@ static int nlaedit_borderselect_exec(bContext *C, wmOperator *op)
 	short mode = 0, selectmode = 0;
 	const bool select = !RNA_boolean_get(op->ptr, "deselect");
 	const bool extend = RNA_boolean_get(op->ptr, "extend");
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
@@ -302,7 +302,7 @@ static int nlaedit_borderselect_exec(bContext *C, wmOperator *op)
 
 	/* selection 'mode' depends on whether borderselect region only matters on one axis */
 	if (RNA_boolean_get(op->ptr, "axis_range")) {
-		/* mode depends on which axis of the range is larger to determine which axis to use 
+		/* mode depends on which axis of the range is larger to determine which axis to use
 		 *	- checking this in region-space is fine, as it's fundamentally still going to be a different rect size
 		 *	- the frame-range select option is favored over the channel one (x over y), as frame-range one is often
 		 *	  used for tweaking timing when "blocking", while channels is not that useful...
@@ -312,17 +312,17 @@ static int nlaedit_borderselect_exec(bContext *C, wmOperator *op)
 		else
 			mode = NLA_BORDERSEL_CHANNELS;
 	}
-	else 
+	else
 		mode = NLA_BORDERSEL_ALLSTRIPS;
-	
+
 	/* apply borderselect action */
 	borderselect_nla_strips(&ac, rect, mode, selectmode);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_SELECTED, NULL);
-	
+
 	return OPERATOR_FINISHED;
-} 
+}
 
 void NLA_OT_select_border(wmOperatorType *ot)
 {
@@ -330,21 +330,21 @@ void NLA_OT_select_border(wmOperatorType *ot)
 	ot->name = "Border Select";
 	ot->idname = "NLA_OT_select_border";
 	ot->description = "Use box selection to grab NLA-Strips";
-	
+
 	/* api callbacks */
 	ot->invoke = WM_gesture_border_invoke;
 	ot->exec = nlaedit_borderselect_exec;
 	ot->modal = WM_gesture_border_modal;
 	ot->cancel = WM_gesture_border_cancel;
-	
+
 	ot->poll = nlaop_poll_tweakmode_off;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-	
+
 	/* rna */
 	WM_operator_properties_gesture_border_select(ot);
-	
+
 	RNA_def_boolean(ot->srna, "axis_range", 0, "Axis Range", "");
 }
 
@@ -366,24 +366,24 @@ static void nlaedit_select_leftright(bContext *C, bAnimContext *ac, short leftri
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale;
 	int filter;
-	
+
 	Scene *scene = ac->scene;
 	float xmin, xmax;
-	
+
 	/* if currently in tweakmode, exit tweakmode first */
 	if (scene->flag & SCE_NLA_EDIT_ON)
 		WM_operator_name_call(C, "NLA_OT_tweakmode_exit", WM_OP_EXEC_DEFAULT, NULL);
-	
+
 	/* if select mode is replace, deselect all keyframes (and channels) first */
 	if (select_mode == SELECT_REPLACE) {
 		select_mode = SELECT_ADD;
-		
+
 		/* - deselect all other keyframes, so that just the newly selected remain
 		 * - channels aren't deselected, since we don't re-select any as a consequence
 		 */
 		deselect_nla_strips(ac, 0, SELECT_SUBTRACT);
 	}
-	
+
 	/* get range, and get the right flag-setting mode */
 	if (leftright == NLAEDIT_LRSEL_LEFT) {
 		xmin = MINAFRAMEF;
@@ -393,19 +393,19 @@ static void nlaedit_select_leftright(bContext *C, bAnimContext *ac, short leftri
 		xmin = (float)(CFRA - 0.1f);
 		xmax = MAXFRAMEF;
 	}
-	
+
 	select_mode = selmodes_to_flagmodes(select_mode);
-	
-	
+
+
 	/* filter data */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE);
 	ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
-	
+
 	/* select strips on the side where most data occurs */
 	for (ale = anim_data.first; ale; ale = ale->next) {
 		NlaTrack *nlt = (NlaTrack *)ale->data;
 		NlaStrip *strip;
-		
+
 		/* check each strip to see if it is appropriate */
 		for (strip = nlt->strips.first; strip; strip = strip->next) {
 			if (BKE_nlastrip_within_bounds(strip, xmin, xmax)) {
@@ -413,7 +413,7 @@ static void nlaedit_select_leftright(bContext *C, bAnimContext *ac, short leftri
 			}
 		}
 	}
-	
+
 	/* Cleanup */
 	ANIM_animdata_freelist(&anim_data);
 }
@@ -425,28 +425,28 @@ static int nlaedit_select_leftright_exec(bContext *C, wmOperator *op)
 	bAnimContext ac;
 	short leftright = RNA_enum_get(op->ptr, "mode");
 	short selectmode;
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-	
+
 	/* select mode is either replace (deselect all, then add) or add/extend */
 	if (RNA_boolean_get(op->ptr, "extend"))
 		selectmode = SELECT_INVERT;
 	else
 		selectmode = SELECT_REPLACE;
-		
+
 	/* if "test" mode is set, we don't have any info to set this with */
 	if (leftright == NLAEDIT_LRSEL_TEST)
 		return OPERATOR_CANCELLED;
-	
+
 	/* do the selecting now */
 	nlaedit_select_leftright(C, &ac, leftright, selectmode);
-	
+
 	/* set notifier that keyframe selection (and channels too) have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_SELECTED, NULL);
 	WM_event_add_notifier(C, NC_ANIMATION | ND_ANIMCHAN | NA_SELECTED, NULL);
-	
+
 	return OPERATOR_FINISHED;
 }
 
@@ -454,18 +454,18 @@ static int nlaedit_select_leftright_invoke(bContext *C, wmOperator *op, const wm
 {
 	bAnimContext ac;
 	short leftright = RNA_enum_get(op->ptr, "mode");
-	
+
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* handle mode-based testing */
 	if (leftright == NLAEDIT_LRSEL_TEST) {
 		Scene *scene = ac.scene;
 		ARegion *ar = ac.ar;
 		View2D *v2d = &ar->v2d;
 		float x;
-		
+
 		/* determine which side of the current frame mouse is on */
 		x = UI_view2d_region_to_view_x(v2d, event->mval[0]);
 		if (x < CFRA)
@@ -473,7 +473,7 @@ static int nlaedit_select_leftright_invoke(bContext *C, wmOperator *op, const wm
 		else
 			RNA_enum_set(op->ptr, "mode", NLAEDIT_LRSEL_RIGHT);
 	}
-	
+
 	/* perform selection */
 	return nlaedit_select_leftright_exec(C, op);
 }
@@ -481,24 +481,24 @@ static int nlaedit_select_leftright_invoke(bContext *C, wmOperator *op, const wm
 void NLA_OT_select_leftright(wmOperatorType *ot)
 {
 	PropertyRNA *prop;
-	
+
 	/* identifiers */
 	ot->name = "Select Left/Right";
 	ot->idname = "NLA_OT_select_leftright";
 	ot->description = "Select strips to the left or the right of the current frame";
-	
+
 	/* api callbacks  */
 	ot->invoke = nlaedit_select_leftright_invoke;
 	ot->exec = nlaedit_select_leftright_exec;
 	ot->poll = ED_operator_nla_active;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-	
+
 	/* properties */
 	ot->prop = RNA_def_enum(ot->srna, "mode", prop_nlaedit_leftright_select_types, NLAEDIT_LRSEL_TEST, "Mode", "");
 	RNA_def_property_flag(ot->prop, PROP_SKIP_SAVE);
-	
+
 	prop = RNA_def_boolean(ot->srna, "extend", 0, "Extend Select", "");
 	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
 }
@@ -512,7 +512,7 @@ static void mouse_nla_strips(bContext *C, bAnimContext *ac, const int mval[2], s
 	ListBase anim_data = {NULL, NULL};
 	bAnimListElem *ale = NULL;
 	int filter;
-	
+
 	SpaceNla *snla = (SpaceNla *)ac->sl;
 	View2D *v2d = &ac->ar->v2d;
 	Scene *scene = ac->scene;
@@ -520,22 +520,22 @@ static void mouse_nla_strips(bContext *C, bAnimContext *ac, const int mval[2], s
 	int channel_index;
 	float xmin, xmax;
 	float x, y;
-	
-	
+
+
 	/* use View2D to determine the index of the channel (i.e a row in the list) where keyframe was */
 	UI_view2d_region_to_view(v2d, mval[0], mval[1], &x, &y);
 	UI_view2d_listview_view_to_cell(v2d, 0, NLACHANNEL_STEP(snla), 0, (float)NLACHANNEL_HEIGHT_HALF(snla), x, y, NULL, &channel_index);
-	
-	/* x-range to check is +/- 7 (in screen/region-space) on either side of mouse click 
-	 * (that is the size of keyframe icons, so user should be expecting similar tolerances) 
+
+	/* x-range to check is +/- 7 (in screen/region-space) on either side of mouse click
+	 * (that is the size of keyframe icons, so user should be expecting similar tolerances)
 	 */
 	xmin = UI_view2d_region_to_view_x(v2d, mval[0] - 7);
 	xmax = UI_view2d_region_to_view_x(v2d, mval[0] + 7);
-	
+
 	/* filter data */
 	filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_LIST_CHANNELS);
 	ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
-	
+
 	/* try to get channel */
 	ale = BLI_findlink(&anim_data, channel_index);
 	if (ale == NULL) {
@@ -548,65 +548,65 @@ static void mouse_nla_strips(bContext *C, bAnimContext *ac, const int mval[2], s
 		/* found some channel - we only really should do somethign when its an Nla-Track */
 		if (ale->type == ANIMTYPE_NLATRACK) {
 			NlaTrack *nlt = (NlaTrack *)ale->data;
-			
+
 			/* loop over NLA-strips in this track, trying to find one which occurs in the necessary bounds */
 			for (strip = nlt->strips.first; strip; strip = strip->next) {
 				if (BKE_nlastrip_within_bounds(strip, xmin, xmax))
 					break;
 			}
 		}
-		
+
 		/* remove active channel from list of channels for separate treatment (since it's needed later on) */
 		BLI_remlink(&anim_data, ale);
-		
+
 		/* free list of channels, since it's not used anymore */
 		ANIM_animdata_freelist(&anim_data);
 	}
-	
+
 	/* if currently in tweakmode, exit tweakmode before changing selection states
 	 * now that we've found our target...
 	 */
 	if (scene->flag & SCE_NLA_EDIT_ON)
 		WM_operator_name_call(C, "NLA_OT_tweakmode_exit", WM_OP_EXEC_DEFAULT, NULL);
-	
+
 	/* for replacing selection, firstly need to clear existing selection */
 	if (select_mode == SELECT_REPLACE) {
 		/* reset selection mode for next steps */
 		select_mode = SELECT_ADD;
-		
+
 		/* deselect all strips */
 		deselect_nla_strips(ac, 0, SELECT_SUBTRACT);
-		
+
 		/* deselect all other channels first */
 		ANIM_deselect_anim_channels(ac, ac->data, ac->datatype, 0, ACHANNEL_SETFLAG_CLEAR);
 	}
-	
+
 	/* only select strip if we clicked on a valid channel and hit something */
 	if (ale) {
 		/* select the strip accordingly (if a matching one was found) */
 		if (strip) {
 			select_mode = selmodes_to_flagmodes(select_mode);
 			ACHANNEL_SET_FLAG(strip, select_mode, NLASTRIP_FLAG_SELECT);
-			
+
 			/* if we selected it, we can make it active too
-			 *	- we always need to clear the active strip flag though... 
+			 *	- we always need to clear the active strip flag though...
 			 *  - as well as selecting its track...
 			 */
 			deselect_nla_strips(ac, DESELECT_STRIPS_CLEARACTIVE, 0);
-			
+
 			if (strip->flag & NLASTRIP_FLAG_SELECT) {
 				strip->flag |= NLASTRIP_FLAG_ACTIVE;
-				
+
 				/* Highlight NLA-Track */
 				if (ale->type == ANIMTYPE_NLATRACK) {
 					NlaTrack *nlt = (NlaTrack *)ale->data;
-					
+
 					nlt->flag |= NLATRACK_SELECTED;
 					ANIM_set_active_channel(ac, ac->data, ac->datatype, filter, nlt, ANIMTYPE_NLATRACK);
 				}
 			}
 		}
-		
+
 		/* free this channel */
 		MEM_freeN(ale);
 	}
@@ -626,7 +626,7 @@ static int nlaedit_clickselect_invoke(bContext *C, wmOperator *op, const wmEvent
 	/* get editor data */
 	if (ANIM_animdata_get_context(C, &ac) == 0)
 		return OPERATOR_CANCELLED;
-		
+
 	/* get useful pointers from animation context data */
 	/* scene= ac.scene; */ /* UNUSED */
 	/* ar= ac.ar; */ /* UNUSED */
@@ -637,33 +637,33 @@ static int nlaedit_clickselect_invoke(bContext *C, wmOperator *op, const wmEvent
 		selectmode = SELECT_INVERT;
 	else
 		selectmode = SELECT_REPLACE;
-		
+
 	/* select strips based upon mouse position */
 	mouse_nla_strips(C, &ac, event->mval, selectmode);
-	
+
 	/* set notifier that things have changed */
 	WM_event_add_notifier(C, NC_ANIMATION | ND_NLA | NA_SELECTED, NULL);
-	
+
 	/* for tweak grab to work */
 	return OPERATOR_FINISHED | OPERATOR_PASS_THROUGH;
 }
- 
+
 void NLA_OT_click_select(wmOperatorType *ot)
 {
 	PropertyRNA *prop;
-	
+
 	/* identifiers */
 	ot->name = "Mouse Select";
 	ot->idname = "NLA_OT_click_select";
 	ot->description = "Handle clicks to select NLA Strips";
-	
+
 	/* api callbacks - absolutely no exec() this yet... */
 	ot->invoke = nlaedit_clickselect_invoke;
 	ot->poll = ED_operator_nla_active;
-	
+
 	/* flags */
 	ot->flag = OPTYPE_UNDO;
-	
+
 	/* properties */
 	prop = RNA_def_boolean(ot->srna, "extend", 0, "Extend Select", ""); // SHIFTKEY
 	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
diff --git a/source/blender/editors/space_nla/space_nla.c b/source/blender/editors/space_nla/space_nla.c
index 2df8643f850..88ef4a18142 100644
--- a/source/blender/editors/space_nla/space_nla.c
+++ b/source/blender/editors/space_nla/space_nla.c
@@ -75,15 +75,15 @@ ARegion *nla_has_buttons_region(ScrArea *sa)
 
 	/* is error! */
 	if (ar == NULL) return NULL;
-	
+
 	arnew = MEM_callocN(sizeof(ARegion), "buttons for nla");
-	
+
 	BLI_insertlinkafter(&sa->regionbase, ar, arnew);
 	arnew->regiontype = RGN_TYPE_UI;
 	arnew->alignment = RGN_ALIGN_RIGHT;
-	
+
 	arnew->flag = RGN_FLAG_HIDDEN;
-	
+
 	return arnew;
 }
 
@@ -97,58 +97,58 @@ static SpaceLink *nla_new(const bContext *C)
 	ScrArea *sa = CTX_wm_area(C);
 	ARegion *ar;
 	SpaceNla *snla;
-	
+
 	snla = MEM_callocN(sizeof(SpaceNla), "initnla");
 	snla->spacetype = SPACE_NLA;
-	
+
 	/* allocate DopeSheet data for NLA Editor */
 	snla->ads = MEM_callocN(sizeof(bDopeSheet), "NlaEdit DopeSheet");
 	snla->ads->source = (ID *)scene;
-	
+
 	/* set auto-snapping settings */
 	snla->autosnap = SACTSNAP_FRAME;
-	
+
 	/* header */
 	ar = MEM_callocN(sizeof(ARegion), "header for nla");
-	
+
 	BLI_addtail(&snla->regionbase, ar);
 	ar->regiontype = RGN_TYPE_HEADER;
 	ar->alignment = RGN_ALIGN_BOTTOM;
-	
+
 	/* channel list region */
 	ar = MEM_callocN(sizeof(ARegion), "channel list for nla");
 	BLI_addtail(&snla->regionbase, ar);
 	ar->regiontype = RGN_TYPE_CHANNELS;
 	ar->alignment = RGN_ALIGN_LEFT;
-	
+
 	/* only need to set these settings since this will use the 'stack' configuration */
 	ar->v2d.scroll = V2D_SCROLL_BOTTOM;
 	ar->v2d.flag = V2D_VIEWSYNC_AREA_VERTICAL;
-	
+
 	/* ui buttons */
 	ar = MEM_callocN(sizeof(ARegion), "buttons region for nla");
-	
+
 	BLI_addtail(&snla->regionbase, ar);
 	ar->regiontype = RGN_TYPE_UI;
 	ar->alignment = RGN_ALIGN_RIGHT;
 	ar->flag = RGN_FLAG_HIDDEN;
-	
+
 	/* main region */
 	ar = MEM_callocN(sizeof(ARegion), "main region for nla");
-	
+
 	BLI_addtail(&snla->regionbase, ar);
 	ar->regiontype = RGN_TYPE_WINDOW;
-	
+
 	ar->v2d.tot.xmin = (float)(SFRA - 10);
 	ar->v2d.tot.ymin = (float)(-sa->winy) / 3.0f;
 	ar->v2d.tot.xmax = (float)(EFRA + 10);
 	ar->v2d.tot.ymax = 0.0f;
-	
+
 	ar->v2d.cur = ar->v2d.tot;
-	
+
 	ar->v2d.min[0] = 0.0f;
 	ar->v2d.min[1] = 0.0f;
-	
+
 	ar->v2d.max[0] = MAXFRAMEF;
 	ar->v2d.max[1] = 10000.0f;
 
@@ -160,15 +160,15 @@ static SpaceLink *nla_new(const bContext *C)
 	ar->v2d.keepofs = V2D_KEEPOFS_Y;
 	ar->v2d.align = V2D_ALIGN_NO_POS_Y;
 	ar->v2d.flag = V2D_VIEWSYNC_AREA_VERTICAL;
-	
+
 	return (SpaceLink *)snla;
 }
 
 /* not spacelink itself */
 static void nla_free(SpaceLink *sl)
-{	
+{
 	SpaceNla *snla = (SpaceNla *) sl;
-	
+
 	if (snla->ads) {
 		BLI_freelistN(&snla->ads->chanbase);
 		MEM_freeN(snla->ads);
@@ -180,7 +180,7 @@ static void nla_free(SpaceLink *sl)
 static void nla_init(struct wmWindowManager *UNUSED(wm), ScrArea *sa)
 {
 	SpaceNla *snla = (SpaceNla *)sa->spacedata.first;
-	
+
 	/* init dopesheet data if non-existent (i.e. for old files) */
 	if (snla->ads == NULL) {
 		snla->ads = MEM_callocN(sizeof(bDopeSheet), "NlaEdit DopeSheet");
@@ -193,10 +193,10 @@ static void nla_init(struct wmWindowManager *UNUSED(wm), ScrArea *sa)
 static SpaceLink *nla_duplicate(SpaceLink *sl)
 {
 	SpaceNla *snlan = MEM_dupallocN(sl);
-	
+
 	/* clear or remove stuff from old */
 	snlan->ads = MEM_dupallocN(snlan->ads);
-	
+
 	return (SpaceLink *)snlan;
 }
 
@@ -204,12 +204,12 @@ static SpaceLink *nla_duplicate(SpaceLink *sl)
 static void nla_channel_region_init(wmWindowManager *wm, ARegion *ar)
 {
 	wmKeyMap *keymap;
-	
+
 	/* ensure the 2d view sync works - main region has bottom scroller */
 	ar->v2d.scroll = V2D_SCROLL_BOTTOM;
-	
+
 	UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_LIST, ar->winx, ar->winy);
-	
+
 	/* own keymap */
 	/* own channels map first to override some channel keymaps */
 	keymap = WM_keymap_find(wm->defaultconf, "NLA Channels", SPACE_NLA, 0);
@@ -217,7 +217,7 @@ static void nla_channel_region_init(wmWindowManager *wm, ARegion *ar)
 	/* now generic channels map for everything else that can apply */
 	keymap = WM_keymap_find(wm->defaultconf, "Animation Channels", 0, 0);
 	WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
-	
+
 	keymap = WM_keymap_find(wm->defaultconf, "NLA Generic", SPACE_NLA, 0);
 	WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
 }
@@ -228,21 +228,21 @@ static void nla_channel_region_draw(const bContext *C, ARegion *ar)
 	bAnimContext ac;
 	View2D *v2d = &ar->v2d;
 	View2DScrollers *scrollers;
-	
+
 	/* clear and setup matrix */
 	UI_ThemeClearColor(TH_BACK);
 	glClear(GL_COLOR_BUFFER_BIT);
-	
+
 	UI_view2d_view_ortho(v2d);
-	
+
 	/* data */
 	if (ANIM_animdata_get_context(C, &ac)) {
 		draw_nla_channel_list(C, &ac, ar);
 	}
-	
+
 	/* reset view matrix */
 	UI_view2d_view_restore(C);
-	
+
 	/* scrollers */
 	scrollers = UI_view2d_scrollers_calc(C, v2d, V2D_ARG_DUMMY, V2D_ARG_DUMMY, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
 	UI_view2d_scrollers_draw(C, v2d, scrollers);
@@ -254,9 +254,9 @@ static void nla_channel_region_draw(const bContext *C, ARegion *ar)
 static void nla_main_region_init(wmWindowManager *wm, ARegion *ar)
 {
 	wmKeyMap *keymap;
-	
+
 	UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_CUSTOM, ar->winx, ar->winy);
-	
+
 	/* own keymap */
 	keymap = WM_keymap_find(wm->defaultconf, "NLA Editor", SPACE_NLA, 0);
 	WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
@@ -273,52 +273,52 @@ static void nla_main_region_draw(const bContext *C, ARegion *ar)
 	View2DGrid *grid;
 	View2DScrollers *scrollers;
 	short unit = 0, flag = 0;
-	
+
 	/* clear and setup matrix */
 	UI_ThemeClearColor(TH_BACK);
 	glClear(GL_COLOR_BUFFER_BIT);
-	
+
 	UI_view2d_view_ortho(v2d);
-	
+
 	/* time grid */
 	unit = (snla->flag & SNLA_DRAWTIME) ? V2D_UNIT_SECONDS : V2D_UNIT_FRAMES;
 	grid = UI_view2d_grid_calc(CTX_data_scene(C), v2d, unit, V2D_GRID_CLAMP, V2D_ARG_DUMMY, V2D_ARG_DUMMY, ar->winx, ar->winy);
 	UI_view2d_grid_draw(v2d, grid, V2D_GRIDLINES_ALL);
 	UI_view2d_grid_free(grid);
-	
+
 	ED_region_draw_cb_draw(C, ar, REGION_DRAW_PRE_VIEW);
 
 	/* data */
 	if (ANIM_animdata_get_context(C, &ac)) {
 		/* strips and backdrops */
 		draw_nla_main_data(&ac, snla, ar);
-		
+
 		/* text draw cached, in pixelspace now */
 		UI_view2d_text_cache_draw(ar);
 	}
-	
+
 	UI_view2d_view_ortho(v2d);
-	
+
 	/* current frame */
 	if (snla->flag & SNLA_DRAWTIME) flag |= DRAWCFRA_UNIT_SECONDS;
 	if ((snla->flag & SNLA_NODRAWCFRANUM) == 0) flag |= DRAWCFRA_SHOW_NUMBOX;
 	ANIM_draw_cfra(C, v2d, flag);
-	
+
 	/* markers */
 	UI_view2d_view_orthoSpecial(ar, v2d, 1);
 	ED_markers_draw(C, DRAW_MARKERS_MARGIN);
-	
+
 	/* preview range */
 	UI_view2d_view_ortho(v2d);
 	ANIM_draw_previewrange(C, v2d, 0);
-	
+
 	/* callback */
 	UI_view2d_view_ortho(v2d);
 	ED_region_draw_cb_draw(C, ar, REGION_DRAW_POST_VIEW);
 
 	/* reset view matrix */
 	UI_view2d_view_restore(C);
-	
+
 	/* scrollers */
 	scrollers = UI_view2d_scrollers_calc(C, v2d, unit, V2D_GRID_CLAMP, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
 	UI_view2d_scrollers_draw(C, v2d, scrollers);
@@ -341,9 +341,9 @@ static void nla_header_region_draw(const bContext *C, ARegion *ar)
 static void nla_buttons_region_init(wmWindowManager *wm, ARegion *ar)
 {
 	wmKeyMap *keymap;
-	
+
 	ED_region_panels_init(wm, ar);
-	
+
 	keymap = WM_keymap_find(wm->defaultconf, "NLA Generic", SPACE_NLA, 0);
 	WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
 }
@@ -505,7 +505,7 @@ static void nla_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn)
 static void nla_id_remap(ScrArea *UNUSED(sa), SpaceLink *slink, ID *old_id, ID *new_id)
 {
 	SpaceNla *snla = (SpaceNla *)slink;
-	
+
 	if (snla->ads) {
 		if ((ID *)snla->ads->filter_grp == old_id) {
 			snla->ads->filter_grp = (Group *)new_id;
@@ -521,10 +521,10 @@ void ED_spacetype_nla(void)
 {
 	SpaceType *st = MEM_callocN(sizeof(SpaceType), "spacetype nla");
 	ARegionType *art;
-	
+
 	st->spaceid = SPACE_NLA;
 	strncpy(st->name, "NLA", BKE_ST_MAXNAME);
-	
+
 	st->new = nla_new;
 	st->free = nla_free;
 	st->init = nla_init;
@@ -543,30 +543,30 @@ void ED_spacetype_nla(void)
 	art->keymapflag = ED_KEYMAP_VIEW2D | ED_KEYMAP_MARKERS | ED_KEYMAP_ANIMATION | ED_KEYMAP_FRAMES;
 
 	BLI_addhead(&st->regiontypes, art);
-	
+
 	/* regions: header */
 	art = MEM_callocN(sizeof(ARegionType), "spacetype nla region");
 	art->regionid = RGN_TYPE_HEADER;
 	art->prefsizey = HEADERY;
 	art->keymapflag = ED_KEYMAP_UI | ED_KEYMAP_VIEW2D | ED_KEYMAP_FRAMES | ED_KEYMAP_HEADER;
-	
+
 	art->init = nla_header_region_init;
 	art->draw = nla_header_region_draw;
-	
+
 	BLI_addhead(&st->regiontypes, art);
-	
+
 	/* regions: channels */
 	art = MEM_callocN(sizeof(ARegionType), "spacetype nla region");
 	art->regionid = RGN_TYPE_CHANNELS;
 	art->prefsizex = 200;
 	art->keymapflag = ED_KEYMAP_UI | ED_KEYMAP_VIEW2D | ED_KEYMAP_FRAMES;
-	
+
 	art->init = nla_channel_region_init;
 	art->draw = nla_channel_region_draw;
 	art->listener = nla_channel_region_listener;
-	
+
 	BLI_addhead(&st->regiontypes, art);
-	
+
 	/* regions: UI buttons */
 	art = MEM_callocN(sizeof(ARegionType), "spacetype nla region");
 	art->regionid = RGN_TYPE_UI;
@@ -575,11 +575,11 @@ void ED_spacetype_nla(void)
 	art->listener = nla_region_listener;
 	art->init = nla_buttons_region_init;
 	art->draw = nla_buttons_region_draw;
-	
+
 	BLI_addhead(&st->regiontypes, art);
 
 	nla_buttons_register(art);
-	
-	
+
+
 	BKE_spacetype_register(st);
 }