Cleanup: strip trailing space in editors

1 files changed, 146 insertions, 146 deletions

diff --git a/source/blender/editors/space_node/node_draw.c b/source/blender/editors/space_node/node_draw.c
index 58034f23351..d1374aab02c 100644
--- a/source/blender/editors/space_node/node_draw.c
+++ b/source/blender/editors/space_node/node_draw.c
@@ -95,7 +95,7 @@ static bNodeTree *node_tree_from_ID(ID *id)
 {
 	if (id) {
 		short idtype = GS(id->name);
-	
+
 		switch (idtype) {
 			case ID_NT:
 				return (bNodeTree *)id;
@@ -113,7 +113,7 @@ static bNodeTree *node_tree_from_ID(ID *id)
 				return ((FreestyleLineStyle *)id)->nodetree;
 		}
 	}
-	
+
 	return NULL;
 }
 
@@ -132,7 +132,7 @@ void ED_node_tag_update_id(ID *id)
 
 	if (ntree->type == NTREE_SHADER) {
 		DAG_id_tag_update(id, 0);
-		
+
 		if (GS(id->name) == ID_MA)
 			WM_main_add_notifier(NC_MATERIAL | ND_SHADING, id);
 		else if (GS(id->name) == ID_LA)
@@ -186,7 +186,7 @@ static bool compare_nodes(const bNode *a, const bNode *b)
 	 */
 	bool a_select = (a->flag & NODE_SELECT) != 0, b_select = (b->flag & NODE_SELECT) != 0;
 	bool a_active = (a->flag & NODE_ACTIVE) != 0, b_active = (b->flag & NODE_ACTIVE) != 0;
-	
+
 	/* if one is an ancestor of the other */
 	/* XXX there might be a better sorting algorithm for stable topological sort, this is O(n^2) worst case */
 	for (parent = a->parent; parent; parent = parent->parent) {
@@ -215,13 +215,13 @@ static bool compare_nodes(const bNode *a, const bNode *b)
 		return 0;
 	else if (!(a->flag & NODE_BACKGROUND) && (b->flag & NODE_BACKGROUND))
 		return 1;
-	
+
 	/* if one has a higher selection state (active > selected > nothing) */
 	if (!b_active && a_active)
 		return 1;
 	else if (!b_select && (a_active || a_select))
 		return 1;
-	
+
 	return 0;
 }
 
@@ -234,11 +234,11 @@ void ED_node_sort(bNodeTree *ntree)
 	bNode *first_a, *first_b, *node_a, *node_b, *tmp;
 	int totnodes = BLI_listbase_count(&ntree->nodes);
 	int k, a, b;
-	
+
 	k = 1;
 	while (k < totnodes) {
 		first_a = first_b = ntree->nodes.first;
-		
+
 		do {
 			/* setup first_b pointer */
 			for (b = 0; b < k && first_b; ++b) {
@@ -247,7 +247,7 @@ void ED_node_sort(bNodeTree *ntree)
 			/* all batches merged? */
 			if (first_b == NULL)
 				break;
-			
+
 			/* merge batches */
 			node_a = first_a;
 			node_b = first_b;
@@ -276,7 +276,7 @@ void ED_node_sort(bNodeTree *ntree)
 			}
 			first_a = first_b;
 		} while (first_b);
-		
+
 		k = k << 1;
 	}
 }
@@ -295,9 +295,9 @@ static void node_uiblocks_init(const bContext *C, bNodeTree *ntree)
 {
 	bNode *node;
 	char uiblockstr[32];
-	
+
 	/* add node uiBlocks in drawing order - prevents events going to overlapping nodes */
-	
+
 	for (node = ntree->nodes.first; node; node = node->next) {
 		/* ui block */
 		BLI_snprintf(uiblockstr, sizeof(uiblockstr), "node buttons %p", (void *)node);
@@ -339,52 +339,52 @@ static void node_update_basis(const bContext *C, bNodeTree *ntree, bNode *node)
 	float locx, locy;
 	float dy;
 	int buty;
-	
+
 	RNA_pointer_create(&ntree->id, &RNA_Node, node, &nodeptr);
-	
+
 	/* get "global" coords */
 	node_to_view(node, 0.0f, 0.0f, &locx, &locy);
 	dy = locy;
-	
+
 	/* header */
 	dy -= NODE_DY;
-	
+
 	/* little bit space in top */
 	if (node->outputs.first)
 		dy -= NODE_DYS / 2;
-	
+
 	/* output sockets */
 	bool add_output_space = false;
 
 	for (nsock = node->outputs.first; nsock; nsock = nsock->next) {
 		if (nodeSocketIsHidden(nsock))
 			continue;
-		
+
 		RNA_pointer_create(&ntree->id, &RNA_NodeSocket, nsock, &sockptr);
-		
+
 		layout = UI_block_layout(
 		        node->block, UI_LAYOUT_VERTICAL, UI_LAYOUT_PANEL,
 		        locx + NODE_DYS, dy, NODE_WIDTH(node) - NODE_DY, NODE_DY, 0, UI_style_get());
 		/* context pointers for current node and socket */
 		uiLayoutSetContextPointer(layout, "node", &nodeptr);
 		uiLayoutSetContextPointer(layout, "socket", &sockptr);
-		
+
 		/* align output buttons to the right */
 		row = uiLayoutRow(layout, 1);
 		uiLayoutSetAlignment(row, UI_LAYOUT_ALIGN_RIGHT);
-		
+
 		nsock->typeinfo->draw((bContext *)C, row, &sockptr, &nodeptr, IFACE_(nsock->name));
-		
+
 		UI_block_align_end(node->block);
 		UI_block_layout_resolve(node->block, NULL, &buty);
-		
+
 		/* ensure minimum socket height in case layout is empty */
 		buty = min_ii(buty, dy - NODE_DY);
-		
+
 		nsock->locx = locx + NODE_WIDTH(node);
 		/* place the socket circle in the middle of the layout */
 		nsock->locy = 0.5f * (dy + buty);
-		
+
 		dy = buty;
 		if (nsock->next)
 			dy -= NODE_SOCKDY;
@@ -402,28 +402,28 @@ static void node_update_basis(const bContext *C, bNodeTree *ntree, bNode *node)
 	/* preview rect? */
 	if (node->flag & NODE_PREVIEW) {
 		float aspect = 1.0f;
-		
-		if (node->preview_xsize && node->preview_ysize) 
+
+		if (node->preview_xsize && node->preview_ysize)
 			aspect = (float)node->preview_ysize / (float)node->preview_xsize;
-		
+
 		dy -= NODE_DYS / 2;
 		node->prvr.ymax = dy;
-		
+
 		if (aspect <= 1.0f)
 			node->prvr.ymin = dy - aspect * (NODE_WIDTH(node) - NODE_DY);
 		else {
 			/* width correction of image */
 			/* XXX huh? (ton) */
 			float dx = (NODE_WIDTH(node) - NODE_DYS) - (NODE_WIDTH(node) - NODE_DYS) / aspect;
-			
+
 			node->prvr.ymin = dy - (NODE_WIDTH(node) - NODE_DY);
-			
+
 			node->prvr.xmin += 0.5f * dx;
 			node->prvr.xmax -= 0.5f * dx;
 		}
-		
+
 		dy = node->prvr.ymin - NODE_DYS / 2;
-		
+
 		/* make sure that maximums are bigger or equal to minimums */
 		if (node->prvr.xmax < node->prvr.xmin) SWAP(float, node->prvr.xmax, node->prvr.xmin);
 		if (node->prvr.ymax < node->prvr.ymin) SWAP(float, node->prvr.ymax, node->prvr.ymin);
@@ -438,18 +438,18 @@ static void node_update_basis(const bContext *C, bNodeTree *ntree, bNode *node)
 		node->butr.xmax = NODE_WIDTH(node) - 2 * NODE_DYS;
 		node->butr.ymin = 0;
 		node->butr.ymax = 0;
-		
-			
+
+
 		layout = UI_block_layout(
 		        node->block, UI_LAYOUT_VERTICAL, UI_LAYOUT_PANEL,
 		        locx + NODE_DYS, dy, node->butr.xmax, 0, 0, UI_style_get());
 		uiLayoutSetContextPointer(layout, "node", &nodeptr);
-		
+
 		node->typeinfo->draw_buttons(layout, (bContext *)C, &nodeptr);
-		
+
 		UI_block_align_end(node->block);
 		UI_block_layout_resolve(node->block, NULL, &buty);
-			
+
 		dy = buty - NODE_DYS / 2;
 	}
 
@@ -457,35 +457,35 @@ static void node_update_basis(const bContext *C, bNodeTree *ntree, bNode *node)
 	for (nsock = node->inputs.first; nsock; nsock = nsock->next) {
 		if (nodeSocketIsHidden(nsock))
 			continue;
-		
+
 		RNA_pointer_create(&ntree->id, &RNA_NodeSocket, nsock, &sockptr);
-		
+
 		layout = UI_block_layout(
 		        node->block, UI_LAYOUT_VERTICAL, UI_LAYOUT_PANEL,
 		        locx + NODE_DYS, dy, NODE_WIDTH(node) - NODE_DY, NODE_DY, 0, UI_style_get());
 		/* context pointers for current node and socket */
 		uiLayoutSetContextPointer(layout, "node", &nodeptr);
 		uiLayoutSetContextPointer(layout, "socket", &sockptr);
-		
+
 		row = uiLayoutRow(layout, 1);
-		
+
 		nsock->typeinfo->draw((bContext *)C, row, &sockptr, &nodeptr, IFACE_(nsock->name));
-		
+
 		UI_block_align_end(node->block);
 		UI_block_layout_resolve(node->block, NULL, &buty);
-		
+
 		/* ensure minimum socket height in case layout is empty */
 		buty = min_ii(buty, dy - NODE_DY);
-		
+
 		nsock->locx = locx;
 		/* place the socket circle in the middle of the layout */
 		nsock->locy = 0.5f * (dy + buty);
-		
+
 		dy = buty;
 		if (nsock->next)
 			dy -= NODE_SOCKDY;
 	}
-	
+
 	/* little bit space in end */
 	if (node->inputs.first || (node->flag & (NODE_OPTIONS | NODE_PREVIEW)) == 0)
 		dy -= NODE_DYS / 2;
@@ -494,7 +494,7 @@ static void node_update_basis(const bContext *C, bNodeTree *ntree, bNode *node)
 	node->totr.xmax = locx + NODE_WIDTH(node);
 	node->totr.ymax = locy;
 	node->totr.ymin = min_ff(dy, locy - 2 * NODE_DY);
-	
+
 	/* Set the block bounds to clip mouse events from underlying nodes.
 	 * Add a margin for sockets on each side.
 	 */
@@ -513,7 +513,7 @@ static void node_update_hidden(bNode *node)
 	float locx, locy;
 	float rad, drad, hiddenrad = HIDDEN_RAD;
 	int totin = 0, totout = 0, tot;
-	
+
 	/* get "global" coords */
 	node_to_view(node, 0.0f, 0.0f, &locx, &locy);
 
@@ -524,20 +524,20 @@ static void node_update_hidden(bNode *node)
 	for (nsock = node->outputs.first; nsock; nsock = nsock->next)
 		if (!nodeSocketIsHidden(nsock))
 			totout++;
-	
+
 	tot = MAX2(totin, totout);
 	if (tot > 4) {
 		hiddenrad += 5.0f * (float)(tot - 4);
 	}
-	
+
 	node->totr.xmin = locx;
 	node->totr.xmax = locx + 3 * hiddenrad + node->miniwidth;
 	node->totr.ymax = locy + (hiddenrad - 0.5f * NODE_DY);
 	node->totr.ymin = node->totr.ymax - 2 * hiddenrad;
-	
+
 	/* output sockets */
 	rad = drad = (float)M_PI / (1.0f + (float)totout);
-	
+
 	for (nsock = node->outputs.first; nsock; nsock = nsock->next) {
 		if (!nodeSocketIsHidden(nsock)) {
 			nsock->locx = node->totr.xmax - hiddenrad + sinf(rad) * hiddenrad;
@@ -545,10 +545,10 @@ static void node_update_hidden(bNode *node)
 			rad += drad;
 		}
 	}
-	
+
 	/* input sockets */
 	rad = drad = -(float)M_PI / (1.0f + (float)totin);
-	
+
 	for (nsock = node->inputs.first; nsock; nsock = nsock->next) {
 		if (!nodeSocketIsHidden(nsock)) {
 			nsock->locx = node->totr.xmin + hiddenrad + sinf(rad) * hiddenrad;
@@ -664,7 +664,7 @@ void node_socket_draw(const bContext *C, bNodeTree *ntree, bNode *node, bNodeSoc
 {
 	PointerRNA ptr, node_ptr;
 	float color[4];
-	
+
 	RNA_pointer_create((ID *)ntree, &RNA_NodeSocket, sock, &ptr);
 	RNA_pointer_create((ID *)ntree, &RNA_Node, node, &node_ptr);
 	sock->typeinfo->draw_color((bContext *)C, &ptr, &node_ptr, color);
@@ -729,12 +729,12 @@ void node_socket_draw(const bContext *C, bNodeTree *ntree, bNode *node, bNodeSoc
 static void node_draw_preview_background(float tile, rctf *rect)
 {
 	float x, y;
-	
+
 	/* draw checkerboard backdrop to show alpha */
 	glColor3ub(120, 120, 120);
 	glRectf(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
 	glColor3ub(160, 160, 160);
-	
+
 	for (y = rect->ymin; y < rect->ymax; y += tile * 2) {
 		for (x = rect->xmin; x < rect->xmax; x += tile * 2) {
 			float tilex = tile, tiley = tile;
@@ -770,7 +770,7 @@ static void node_draw_preview(bNodePreview *preview, rctf *prv)
 	float yscale = yrect / ((float)preview->ysize);
 	float scale;
 	rctf draw_rect;
-	
+
 	/* uniform scale and offset */
 	draw_rect = *prv;
 	if (xscale < yscale) {
@@ -785,17 +785,17 @@ static void node_draw_preview(bNodePreview *preview, rctf *prv)
 		draw_rect.xmax -= offset;
 		scale = yscale;
 	}
-	
+
 	node_draw_preview_background(BLI_rctf_size_x(prv) / 10.0f, &draw_rect);
-	
+
 	glEnable(GL_BLEND);
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);  /* premul graphics */
-	
+
 	glColor4f(1.0, 1.0, 1.0, 1.0);
 	glPixelZoom(scale, scale);
 	glaDrawPixelsTex(draw_rect.xmin, draw_rect.ymin, preview->xsize, preview->ysize, GL_RGBA, GL_UNSIGNED_BYTE, GL_LINEAR, preview->rect);
 	glPixelZoom(1.0f, 1.0f);
-	
+
 	glDisable(GL_BLEND);
 
 	UI_ThemeColorShadeAlpha(TH_BACK, -15, +100);
@@ -807,23 +807,23 @@ static void node_toggle_button_cb(struct bContext *C, void *node_argv, void *op_
 {
 	bNode *node = (bNode *)node_argv;
 	const char *opname = (const char *)op_argv;
-	
+
 	/* select & activate only the button's node */
 	node_select_single(C, node);
-	
+
 	WM_operator_name_call(C, opname, WM_OP_INVOKE_DEFAULT, NULL);
 }
 
 void node_draw_shadow(SpaceNode *snode, bNode *node, float radius, float alpha)
 {
 	rctf *rct = &node->totr;
-	
+
 	UI_draw_roundbox_corner_set(UI_CNR_ALL);
 	if (node->parent == NULL)
 		ui_draw_dropshadow(rct, radius, snode->aspect, alpha, node->flag & SELECT);
 	else {
 		const float margin = 3.0f;
-		
+
 		glColor4f(0.0f, 0.0f, 0.0f, 0.33f);
 		glEnable(GL_BLEND);
 		UI_draw_roundbox(rct->xmin - margin, rct->ymin - margin,
@@ -843,21 +843,21 @@ static void node_draw_basis(const bContext *C, ARegion *ar, SpaceNode *snode, bN
 	int color_id = node_get_colorid(node);
 	char showname[128]; /* 128 used below */
 	View2D *v2d = &ar->v2d;
-	
+
 	/* XXX hack: copy values from linked ID data where displayed as sockets */
 	if (node->block)
 		nodeSynchronizeID(node, false);
-	
+
 	/* skip if out of view */
 	if (BLI_rctf_isect(&node->totr, &ar->v2d.cur, NULL) == false) {
 		UI_block_end(C, node->block);
 		node->block = NULL;
 		return;
 	}
-	
+
 	/* shadow */
 	node_draw_shadow(snode, node, BASIS_RAD, 1.0f);
-	
+
 	/* header uses color from backdrop, but we make it opaqie */
 	if (color_id == TH_NODE) {
 		float col[3];
@@ -866,19 +866,19 @@ static void node_draw_basis(const bContext *C, ARegion *ar, SpaceNode *snode, bN
 	}
 	else
 		UI_ThemeColor(color_id);
-	
+
 	if (node->flag & NODE_MUTED)
 		UI_ThemeColorBlend(color_id, TH_REDALERT, 0.5f);
-	
+
 
 	glLineWidth(1.0f);
 
 	UI_draw_roundbox_corner_set(UI_CNR_TOP_LEFT | UI_CNR_TOP_RIGHT);
 	UI_draw_roundbox(rct->xmin, rct->ymax - NODE_DY, rct->xmax, rct->ymax, BASIS_RAD);
-	
+
 	/* show/hide icons */
 	iconofs = rct->xmax - 0.35f * U.widget_unit;
-	
+
 	/* preview */
 	if (node->typeinfo->flag & NODE_PREVIEW) {
 		uiBut *but;
@@ -905,13 +905,13 @@ static void node_draw_basis(const bContext *C, ARegion *ar, SpaceNode *snode, bN
 		UI_but_func_set(but, node_toggle_button_cb, node, (void *)"NODE_OT_group_edit");
 		UI_block_emboss_set(node->block, UI_EMBOSS);
 	}
-	
+
 	/* title */
-	if (node->flag & SELECT) 
+	if (node->flag & SELECT)
 		UI_ThemeColor(TH_SELECT);
 	else
 		UI_ThemeColorBlendShade(TH_TEXT, color_id, 0.4f, 10);
-	
+
 	/* open/close entirely? */
 	{
 		uiBut *but;
@@ -923,24 +923,24 @@ static void node_draw_basis(const bContext *C, ARegion *ar, SpaceNode *snode, bN
 		               but_size, but_size, NULL, 0, 0, 0, 0, "");
 		UI_but_func_set(but, node_toggle_button_cb, node, (void *)"NODE_OT_hide_toggle");
 		UI_block_emboss_set(node->block, UI_EMBOSS);
-		
+
 		/* custom draw function for this button */
 		UI_draw_icon_tri(rct->xmin + 0.5f * U.widget_unit, rct->ymax - NODE_DY / 2.0f, 'v');
 	}
-	
+
 	/* this isn't doing anything for the label, so commenting out */
 #if 0
-	if (node->flag & SELECT) 
+	if (node->flag & SELECT)
 		UI_ThemeColor(TH_TEXT_HI);
 	else
 		UI_ThemeColor(TH_TEXT);
 #endif
-	
+
 	nodeLabel(ntree, node, showname, sizeof(showname));
-	
+
 	//if (node->flag & NODE_MUTED)
 	//	BLI_snprintf(showname, sizeof(showname), "[%s]", showname); /* XXX - don't print into self! */
-	
+
 	uiDefBut(node->block, UI_BTYPE_LABEL, 0, showname,
 	         (int)(rct->xmin + (NODE_MARGIN_X)), (int)(rct->ymax - NODE_DY),
 	         (short)(iconofs - rct->xmin - 18.0f), (short)NODE_DY,
@@ -960,43 +960,43 @@ static void node_draw_basis(const bContext *C, ARegion *ar, SpaceNode *snode, bN
 
 	/* outline active and selected emphasis */
 	if (node->flag & SELECT) {
-		
+
 		glEnable(GL_BLEND);
 		glEnable(GL_LINE_SMOOTH);
-		
+
 		if (node->flag & NODE_ACTIVE)
 			UI_ThemeColorShadeAlpha(TH_ACTIVE, 0, -40);
 		else
 			UI_ThemeColorShadeAlpha(TH_SELECT, 0, -40);
-		
+
 		UI_draw_roundbox_corner_set(UI_CNR_ALL);
 		UI_draw_roundbox_gl_mode(GL_LINE_LOOP, rct->xmin, rct->ymin, rct->xmax, rct->ymax, BASIS_RAD);
-		
+
 		glDisable(GL_LINE_SMOOTH);
 		glDisable(GL_BLEND);
 	}
-	
+
 	/* disable lines */
 	if (node->flag & NODE_MUTED)
 		node_draw_mute_line(v2d, snode, node);
 
-	
+
 	/* socket inputs, buttons */
 	for (sock = node->inputs.first; sock; sock = sock->next) {
 		if (nodeSocketIsHidden(sock))
 			continue;
-		
+
 		node_socket_draw(C, ntree, node, sock, NODE_SOCKSIZE, sock->flag & SELECT);
 	}
-	
+
 	/* socket outputs */
 	for (sock = node->outputs.first; sock; sock = sock->next) {
 		if (nodeSocketIsHidden(sock))
 			continue;
-		
+
 		node_socket_draw(C, ntree, node, sock, NODE_SOCKSIZE, sock->flag & SELECT);
 	}
-	
+
 	/* preview */
 	if (node->flag & NODE_PREVIEW && previews) {
 		bNodePreview *preview = BKE_node_instance_hash_lookup(previews, key);
@@ -1006,9 +1006,9 @@ static void node_draw_basis(const bContext *C, ARegion *ar, SpaceNode *snode, bN
 			}
 		}
 	}
-	
+
 	UI_ThemeClearColor(color_id);
-		
+
 	UI_block_end(C, node->block);
 	UI_block_draw(C, node->block);
 	node->block = NULL;
@@ -1023,7 +1023,7 @@ static void node_draw_hidden(const bContext *C, ARegion *ar, SpaceNode *snode, b
 	float socket_size = NODE_SOCKSIZE;
 	int color_id = node_get_colorid(node);
 	char showname[128]; /* 128 is used below */
-	
+
 	/* shadow */
 	node_draw_shadow(snode, node, hiddenrad, 1.0f);
 
@@ -1033,18 +1033,18 @@ static void node_draw_hidden(const bContext *C, ARegion *ar, SpaceNode *snode, b
 		UI_ThemeColorBlend(color_id, TH_REDALERT, 0.5f);
 
 	UI_draw_roundbox(rct->xmin, rct->ymin, rct->xmax, rct->ymax, hiddenrad);
-	
+
 	/* outline active and selected emphasis */
 	if (node->flag & SELECT) {
 		glEnable(GL_BLEND);
 		glEnable(GL_LINE_SMOOTH);
-		
+
 		if (node->flag & NODE_ACTIVE)
 			UI_ThemeColorShadeAlpha(TH_ACTIVE, 0, -40);
 		else
 			UI_ThemeColorShadeAlpha(TH_SELECT, 0, -40);
 		UI_draw_roundbox_gl_mode(GL_LINE_LOOP, rct->xmin, rct->ymin, rct->xmax, rct->ymax, hiddenrad);
-		
+
 		glDisable(GL_LINE_SMOOTH);
 		glDisable(GL_BLEND);
 	}
@@ -1062,11 +1062,11 @@ static void node_draw_hidden(const bContext *C, ARegion *ar, SpaceNode *snode, b
 	}
 
 	/* title */
-	if (node->flag & SELECT) 
+	if (node->flag & SELECT)
 		UI_ThemeColor(TH_SELECT);
 	else
 		UI_ThemeColorBlendShade(TH_TEXT, color_id, 0.4f, 10);
-	
+
 	/* open entirely icon */
 	{
 		uiBut *but;
@@ -1078,20 +1078,20 @@ static void node_draw_hidden(const bContext *C, ARegion *ar, SpaceNode *snode, b
 		               but_size, but_size, NULL, 0, 0, 0, 0, "");
 		UI_but_func_set(but, node_toggle_button_cb, node, (void *)"NODE_OT_hide_toggle");
 		UI_block_emboss_set(node->block, UI_EMBOSS);
-		
+
 		/* custom draw function for this button */
 		UI_draw_icon_tri(rct->xmin + 10.0f, centy, 'h');
 	}
-	
+
 	/* disable lines */
 	if (node->flag & NODE_MUTED)
 		node_draw_mute_line(&ar->v2d, snode, node);
-	
-	if (node->flag & SELECT) 
+
+	if (node->flag & SELECT)
 		UI_ThemeColor(TH_SELECT);
 	else
 		UI_ThemeColor(TH_TEXT);
-	
+
 	if (node->miniwidth > 0.0f) {
 		nodeLabel(ntree, node, showname, sizeof(showname));
 
@@ -1109,7 +1109,7 @@ static void node_draw_hidden(const bContext *C, ARegion *ar, SpaceNode *snode, b
 	dx = 10.0f;
 	fdrawline(rct->xmax - dx, centy - 4.0f, rct->xmax - dx, centy + 4.0f);
 	fdrawline(rct->xmax - dx - 3.0f * snode->aspect, centy - 4.0f, rct->xmax - dx - 3.0f * snode->aspect, centy + 4.0f);
-	
+
 	UI_ThemeColorShade(color_id, +30);
 	dx -= snode->aspect;
 	fdrawline(rct->xmax - dx, centy - 4.0f, rct->xmax - dx, centy + 4.0f);
@@ -1121,13 +1121,13 @@ static void node_draw_hidden(const bContext *C, ARegion *ar, SpaceNode *snode, b
 			node_socket_draw(C, ntree, node, sock, socket_size, sock->flag & SELECT);
 		}
 	}
-	
+
 	for (sock = node->outputs.first; sock; sock = sock->next) {
 		if (!nodeSocketIsHidden(sock)) {
 			node_socket_draw(C, ntree, node, sock, socket_size, sock->flag & SELECT);
 		}
 	}
-	
+
 	UI_block_end(C, node->block);
 	UI_block_draw(C, node->block);
 	node->block = NULL;
@@ -1151,7 +1151,7 @@ void node_set_cursor(wmWindow *win, SpaceNode *snode, float cursor[2])
 	bNode *node;
 	bNodeSocket *sock;
 	int wmcursor = CURSOR_STD;
-	
+
 	if (ntree) {
 		if (node_find_indicated_socket(snode, &node, &sock, cursor, SOCK_IN | SOCK_OUT)) {
 			/* pass */
@@ -1168,7 +1168,7 @@ void node_set_cursor(wmWindow *win, SpaceNode *snode, float cursor[2])
 			}
 		}
 	}
-	
+
 	WM_cursor_set(win, wmcursor);
 }
 
@@ -1189,10 +1189,10 @@ static void node_update(const bContext *C, bNodeTree *ntree, bNode *node)
 void node_update_nodetree(const bContext *C, bNodeTree *ntree)
 {
 	bNode *node;
-	
+
 	/* make sure socket "used" tags are correct, for displaying value buttons */
 	ntreeTagUsedSockets(ntree);
-	
+
 	/* update nodes front to back, so children sizes get updated before parents */
 	for (node = ntree->nodes.last; node; node = node->prev) {
 		node_update(C, ntree, node);
@@ -1212,7 +1212,7 @@ void node_draw_nodetree(const bContext *C, ARegion *ar, SpaceNode *snode, bNodeT
 	bNode *node;
 	bNodeLink *link;
 	int a;
-	
+
 	if (ntree == NULL) return;      /* groups... */
 
 #ifdef USE_DRAW_TOT_UPDATE
@@ -1238,7 +1238,7 @@ void node_draw_nodetree(const bContext *C, ARegion *ar, SpaceNode *snode, bNodeT
 		node->nr = a;        /* index of node in list, used for exec event code */
 		node_draw(C, ar, snode, ntree, node, key);
 	}
-	
+
 	/* node lines */
 	glEnable(GL_BLEND);
 	glEnable(GL_LINE_SMOOTH);
@@ -1248,7 +1248,7 @@ void node_draw_nodetree(const bContext *C, ARegion *ar, SpaceNode *snode, bNodeT
 	}
 	glDisable(GL_LINE_SMOOTH);
 	glDisable(GL_BLEND);
-	
+
 	/* draw foreground nodes, last nodes in front */
 	for (a = 0, node = ntree->nodes.first; node; node = node->next, a++) {
 		bNodeInstanceKey key;
@@ -1265,9 +1265,9 @@ void node_draw_nodetree(const bContext *C, ARegion *ar, SpaceNode *snode, bNodeT
 static void draw_tree_path(SpaceNode *snode)
 {
 	char info[256];
-	
+
 	ED_node_tree_path_get_fixedbuf(snode, info, sizeof(info));
-	
+
 	UI_ThemeColor(TH_TEXT_HI);
 	BLF_draw_default(1.5f * UI_UNIT_X, 1.5f * UI_UNIT_Y, 0.0f, info, sizeof(info));
 }
@@ -1275,11 +1275,11 @@ static void draw_tree_path(SpaceNode *snode)
 static void snode_setup_v2d(SpaceNode *snode, ARegion *ar, const float center[2])
 {
 	View2D *v2d = &ar->v2d;
-	
+
 	/* shift view to node tree center */
 	UI_view2d_center_set(v2d, center[0], center[1]);
 	UI_view2d_view_ortho(v2d);
-	
+
 	/* aspect+font, set each time */
 	snode->aspect = BLI_rctf_size_x(&v2d->cur) / (float)ar->winx;
 	// XXX snode->curfont = uiSetCurFont_ext(snode->aspect);
@@ -1301,14 +1301,14 @@ static void draw_group_overlay(const bContext *C, ARegion *ar)
 	View2D *v2d = &ar->v2d;
 	rctf rect = v2d->cur;
 	uiBlock *block;
-	
+
 	/* shade node groups to separate them visually */
 	UI_ThemeColorShadeAlpha(TH_NODE_GROUP, 0, -70);
 	glEnable(GL_BLEND);
 	UI_draw_roundbox_corner_set(UI_CNR_NONE);
 	UI_draw_roundbox_gl_mode(GL_POLYGON, rect.xmin, rect.ymin, rect.xmax, rect.ymax, 0);
 	glDisable(GL_BLEND);
-	
+
 	/* set the block bounds to clip mouse events from underlying nodes */
 	block = UI_block_begin(C, ar, "node tree bounds block", UI_EMBOSS);
 	UI_block_bounds_set_explicit(block, rect.xmin, rect.ymin, rect.xmax, rect.ymax);
@@ -1327,22 +1327,22 @@ void drawnodespace(const bContext *C, ARegion *ar)
 	glClear(GL_COLOR_BUFFER_BIT);
 
 	UI_view2d_view_ortho(v2d);
-	
+
 	/* XXX snode->cursor set in coordspace for placing new nodes, used for drawing noodles too */
 	UI_view2d_region_to_view(&ar->v2d, win->eventstate->x - ar->winrct.xmin, win->eventstate->y - ar->winrct.ymin,
 	                         &snode->cursor[0], &snode->cursor[1]);
 	snode->cursor[0] /= UI_DPI_FAC;
 	snode->cursor[1] /= UI_DPI_FAC;
-	
+
 	ED_region_draw_cb_draw(C, ar, REGION_DRAW_PRE_VIEW);
 
 	/* only set once */
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 	glEnable(GL_MAP1_VERTEX_3);
-	
+
 	/* nodes */
 	snode_set_context(C);
-	
+
 	/* draw parent node trees */
 	if (snode->treepath.last) {
 		static const int max_depth = 2;
@@ -1352,56 +1352,56 @@ void drawnodespace(const bContext *C, ARegion *ar)
 		bNodeTree *ntree;
 		bNodeLinkDrag *nldrag;
 		LinkData *linkdata;
-		
+
 		path = snode->treepath.last;
-		
+
 		/* update tree path name (drawn in the bottom left) */
 		ID *name_id = (path->nodetree && path->nodetree != snode->nodetree) ? &path->nodetree->id : snode->id;
 
 		if (name_id && UNLIKELY(!STREQ(path->node_name, name_id->name + 2))) {
 			BLI_strncpy(path->node_name, name_id->name + 2, sizeof(path->node_name));
 		}
-		
+
 		/* current View2D center, will be set temporarily for parent node trees */
 		UI_view2d_center_get(v2d, &center[0], &center[1]);
-		
+
 		/* store new view center in path and current edittree */
 		copy_v2_v2(path->view_center, center);
 		if (snode->edittree)
 			copy_v2_v2(snode->edittree->view_center, center);
-		
+
 		depth = 0;
 		while (path->prev && depth < max_depth) {
 			path = path->prev;
 			++depth;
 		}
-		
+
 		/* parent node trees in the background */
 		for (curdepth = depth; curdepth > 0; path = path->next, --curdepth) {
 			ntree = path->nodetree;
 			if (ntree) {
 				snode_setup_v2d(snode, ar, path->view_center);
-				
+
 				draw_nodetree(C, ar, ntree, path->parent_key);
-				
+
 				draw_group_overlay(C, ar);
 			}
 		}
-		
+
 		/* top-level edit tree */
 		ntree = path->nodetree;
 		if (ntree) {
 			snode_setup_v2d(snode, ar, center);
-			
+
 			/* grid, uses theme color based on node path depth */
 			UI_view2d_multi_grid_draw(v2d, (depth > 0 ? TH_NODE_GROUP : TH_BACK), ED_node_grid_size(), NODE_GRID_STEPS, 2);
-			
+
 			/* backdrop */
 			draw_nodespace_back_pix(C, ar, snode, path->parent_key);
-			
+
 			draw_nodetree(C, ar, ntree, path->parent_key);
 		}
-		
+
 		/* temporary links */
 		glEnable(GL_BLEND);
 		glEnable(GL_LINE_SMOOTH);
@@ -1411,7 +1411,7 @@ void drawnodespace(const bContext *C, ARegion *ar)
 		}
 		glDisable(GL_LINE_SMOOTH);
 		glDisable(GL_BLEND);
-		
+
 		if (snode->flag & SNODE_SHOW_GPENCIL) {
 			/* draw grease-pencil ('canvas' strokes) */
 			ED_gpencil_draw_view2d(C, true);
@@ -1420,16 +1420,16 @@ void drawnodespace(const bContext *C, ARegion *ar)
 	else {
 		/* default grid */
 		UI_view2d_multi_grid_draw(v2d, TH_BACK, ED_node_grid_size(), NODE_GRID_STEPS, 2);
-		
+
 		/* backdrop */
 		draw_nodespace_back_pix(C, ar, snode, NODE_INSTANCE_KEY_NONE);
 	}
-	
+
 	ED_region_draw_cb_draw(C, ar, REGION_DRAW_POST_VIEW);
-	
+
 	/* reset view matrix */
 	UI_view2d_view_restore(C);
-	
+
 	if (snode->treepath.last) {
 		if (snode->flag & SNODE_SHOW_GPENCIL) {
 			/* draw grease-pencil (screen strokes, and also paintbuffer) */
@@ -1439,7 +1439,7 @@ void drawnodespace(const bContext *C, ARegion *ar)
 
 	/* tree path info */
 	draw_tree_path(snode);
-	
+
 	/* scrollers */
 	scrollers = UI_view2d_scrollers_calc(C, v2d, 10, V2D_GRID_CLAMP, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
 	UI_view2d_scrollers_draw(C, v2d, scrollers);