Merge with trunk r41701soc-2011-carrot

5 files changed, 688 insertions, 93 deletions

diff --git a/source/blender/editors/space_buttons/CMakeLists.txt b/source/blender/editors/space_buttons/CMakeLists.txt
index dbb96b68587..ee118f12062 100644
--- a/source/blender/editors/space_buttons/CMakeLists.txt
+++ b/source/blender/editors/space_buttons/CMakeLists.txt
@@ -38,6 +38,7 @@ set(SRC
 	buttons_context.c
 	buttons_header.c
 	buttons_ops.c
+	buttons_texture.c
 	space_buttons.c
 
 	buttons_intern.h
diff --git a/source/blender/editors/space_buttons/buttons_context.c b/source/blender/editors/space_buttons/buttons_context.c
index 98295f21cd4..9de804d275f 100644
--- a/source/blender/editors/space_buttons/buttons_context.c
+++ b/source/blender/editors/space_buttons/buttons_context.c
@@ -54,7 +54,6 @@
 #include "BKE_screen.h"
 #include "BKE_texture.h"
 
-
 #include "RNA_access.h"
 
 #include "ED_armature.h"
@@ -66,13 +65,6 @@
 
 #include "buttons_intern.h"	// own include
 
-typedef struct ButsContextPath {
-	PointerRNA ptr[8];
-	int len;
-	int flag;
-	int tex_ctx;
-} ButsContextPath;
-
 static int set_pointer_type(ButsContextPath *path, bContextDataResult *result, StructRNA *type)
 {
 	PointerRNA *ptr;
@@ -373,102 +365,141 @@ static int buttons_context_path_brush(ButsContextPath *path)
 	return 0;
 }
 
-static int buttons_context_path_texture(ButsContextPath *path)
+static int buttons_context_path_texture(ButsContextPath *path, ButsContextTexture *ct)
 {
-	Material *ma;
-	Lamp *la;
-	Brush *br;
-	World *wo;
-	ParticleSystem *psys;
-	Tex *tex;
-	PointerRNA *ptr= &path->ptr[path->len-1];
-	int orig_len = path->len;
+	if(ct) {
+		/* new shading system */
+		PointerRNA *ptr= &path->ptr[path->len-1];
+		ID *id;
 
-	/* if we already have a (pinned) texture, we're done */
-	if(RNA_struct_is_a(ptr->type, &RNA_Texture)) {
-		return 1;
-	}
-	/* try brush */
-	if((path->tex_ctx == SB_TEXC_BRUSH) && buttons_context_path_brush(path)) {
-		br= path->ptr[path->len-1].data;
-		
-		if(br) {
-			tex= give_current_brush_texture(br);
+		/* if we already have a (pinned) texture, we're done */
+		if(RNA_struct_is_a(ptr->type, &RNA_Texture))
+			return 1;
 
-			RNA_id_pointer_create(&tex->id, &path->ptr[path->len]);
+		if(!ct->user)
+			return 0;
+		
+		id= ct->user->id;
+
+		if(id) {
+			if(GS(id->name) == ID_BR)
+				buttons_context_path_brush(path);
+			else if(GS(id->name) == ID_MA)
+				buttons_context_path_material(path, 0);
+			else if(GS(id->name) == ID_WO)
+				buttons_context_path_world(path);
+			else if(GS(id->name) == ID_LA)
+				buttons_context_path_data(path, OB_LAMP);
+			else if(GS(id->name) == ID_PA)
+				buttons_context_path_particle(path);
+			else if(GS(id->name) == ID_OB)
+				buttons_context_path_object(path);
+		}
+		
+		if(ct->texture) {
+			RNA_id_pointer_create(&ct->texture->id, &path->ptr[path->len]);
 			path->len++;
-			return 1;
 		}
-	}
-	/* try world */
-	if((path->tex_ctx == SB_TEXC_WORLD) && buttons_context_path_world(path)) {
-		wo= path->ptr[path->len-1].data;
-
-		if(wo && GS(wo->id.name)==ID_WO) {
-			tex= give_current_world_texture(wo);
 
-			RNA_id_pointer_create(&tex->id, &path->ptr[path->len]);
-			path->len++;
+		return 1;
+	}
+	else {
+		/* old shading system */
+		Material *ma;
+		Lamp *la;
+		Brush *br;
+		World *wo;
+		ParticleSystem *psys;
+		Tex *tex;
+		PointerRNA *ptr= &path->ptr[path->len-1];
+		int orig_len = path->len;
+
+		/* if we already have a (pinned) texture, we're done */
+		if(RNA_struct_is_a(ptr->type, &RNA_Texture)) {
 			return 1;
 		}
-	}
-	/* try particles */
-	if((path->tex_ctx == SB_TEXC_PARTICLES) && buttons_context_path_particle(path)) {
-		if(path->ptr[path->len-1].type == &RNA_ParticleSettings) {
-			ParticleSettings *part = path->ptr[path->len-1].data;
+		/* try brush */
+		if((path->tex_ctx == SB_TEXC_BRUSH) && buttons_context_path_brush(path)) {
+			br= path->ptr[path->len-1].data;
+			
+			if(br) {
+				tex= give_current_brush_texture(br);
 
-			tex= give_current_particle_texture(part);
-			RNA_id_pointer_create(&tex->id, &path->ptr[path->len]);
-			path->len++;
-			return 1;
+				RNA_id_pointer_create(&tex->id, &path->ptr[path->len]);
+				path->len++;
+				return 1;
+			}
 		}
-		else {
-			psys= path->ptr[path->len-1].data;
+		/* try world */
+		if((path->tex_ctx == SB_TEXC_WORLD) && buttons_context_path_world(path)) {
+			wo= path->ptr[path->len-1].data;
 
-			if(psys && psys->part && GS(psys->part->id.name)==ID_PA) {
-				tex= give_current_particle_texture(psys->part);
+			if(wo && GS(wo->id.name)==ID_WO) {
+				tex= give_current_world_texture(wo);
 
 				RNA_id_pointer_create(&tex->id, &path->ptr[path->len]);
 				path->len++;
 				return 1;
 			}
 		}
-	}
-	/* try material */
-	if(buttons_context_path_material(path, 1)) {
-		ma= path->ptr[path->len-1].data;
+		/* try particles */
+		if((path->tex_ctx == SB_TEXC_PARTICLES) && buttons_context_path_particle(path)) {
+			if(path->ptr[path->len-1].type == &RNA_ParticleSettings) {
+				ParticleSettings *part = path->ptr[path->len-1].data;
 
-		if(ma) {
-			tex= give_current_material_texture(ma);
+				tex= give_current_particle_texture(part);
+				RNA_id_pointer_create(&tex->id, &path->ptr[path->len]);
+				path->len++;
+				return 1;
+			}
+			else {
+				psys= path->ptr[path->len-1].data;
 
-			RNA_id_pointer_create(&tex->id, &path->ptr[path->len]);
-			path->len++;
-			return 1;
+				if(psys && psys->part && GS(psys->part->id.name)==ID_PA) {
+					tex= give_current_particle_texture(psys->part);
+
+					RNA_id_pointer_create(&tex->id, &path->ptr[path->len]);
+					path->len++;
+					return 1;
+				}
+			}
 		}
-	}
-	/* try lamp */
-	if(buttons_context_path_data(path, OB_LAMP)) {
-		la= path->ptr[path->len-1].data;
+		/* try material */
+		if(buttons_context_path_material(path, 1)) {
+			ma= path->ptr[path->len-1].data;
 
-		if(la) {
-			tex= give_current_lamp_texture(la);
+			if(ma) {
+				tex= give_current_material_texture(ma);
 
-			RNA_id_pointer_create(&tex->id, &path->ptr[path->len]);
-			path->len++;
-			return 1;
+				RNA_id_pointer_create(&tex->id, &path->ptr[path->len]);
+				path->len++;
+				return 1;
+			}
 		}
-	}
-	/* try brushes again in case of no material, lamp, etc */
-	path->len = orig_len;
-	if(buttons_context_path_brush(path)) {
-		br= path->ptr[path->len-1].data;
-		
-		if(br) {
-			tex= give_current_brush_texture(br);
+		/* try lamp */
+		if(buttons_context_path_data(path, OB_LAMP)) {
+			la= path->ptr[path->len-1].data;
+
+			if(la) {
+				tex= give_current_lamp_texture(la);
+
+				RNA_id_pointer_create(&tex->id, &path->ptr[path->len]);
+				path->len++;
+				return 1;
+			}
+		}
+		/* try brushes again in case of no material, lamp, etc */
+		path->len = orig_len;
+		if(buttons_context_path_brush(path)) {
+			br= path->ptr[path->len-1].data;
 			
-			RNA_id_pointer_create(&tex->id, &path->ptr[path->len]);
-			path->len++;
-			return 1;
+			if(br) {
+				tex= give_current_brush_texture(br);
+				
+				RNA_id_pointer_create(&tex->id, &path->ptr[path->len]);
+				path->len++;
+				return 1;
+			}
 		}
 	}
 
@@ -530,7 +561,7 @@ static int buttons_context_path(const bContext *C, ButsContextPath *path, int ma
 			found= buttons_context_path_material(path, 0);
 			break;
 		case BCONTEXT_TEXTURE:
-			found= buttons_context_path_texture(path);
+			found= buttons_context_path_texture(path, sbuts->texuser);
 			break;
 		case BCONTEXT_BONE:
 			found= buttons_context_path_bone(path);
@@ -580,6 +611,8 @@ void buttons_context_compute(const bContext *C, SpaceButs *sbuts)
 	PointerRNA *ptr;
 	int a, pflag= 0, flag= 0;
 
+	buttons_texture_context_compute(C, sbuts);
+
 	if(!sbuts->path)
 		sbuts->path= MEM_callocN(sizeof(ButsContextPath), "ButsContextPath");
 	
@@ -649,7 +682,8 @@ void buttons_context_compute(const bContext *C, SpaceButs *sbuts)
 const char *buttons_context_dir[] = {
 	"world", "object", "mesh", "armature", "lattice", "curve",
 	"meta_ball", "lamp", "speaker", "camera", "material", "material_slot",
-	"texture", "texture_slot", "bone", "edit_bone", "pose_bone", "particle_system", "particle_system_editable",
+	"texture", "texture_slot", "texture_user", "bone", "edit_bone",
+	"pose_bone", "particle_system", "particle_system_editable",
 	"cloth", "soft_body", "fluid", "smoke", "collision", "brush", "dynamic_paint", NULL};
 
 int buttons_context(const bContext *C, const char *member, bContextDataResult *result)
@@ -710,7 +744,17 @@ int buttons_context(const bContext *C, const char *member, bContextDataResult *r
 		return 1;
 	}
 	else if(CTX_data_equals(member, "texture")) {
-		set_pointer_type(path, result, &RNA_Texture);
+		ButsContextTexture *ct= sbuts->texuser;
+
+		if(ct) {
+			/* new shading system */
+			CTX_data_pointer_set(result, &ct->texture->id, &RNA_Texture, ct->texture);
+		}
+		else {
+			/* old shading system */
+			set_pointer_type(path, result, &RNA_Texture);
+		}
+
 		return 1;
 	}
 	else if(CTX_data_equals(member, "material_slot")) {
@@ -729,23 +773,52 @@ int buttons_context(const bContext *C, const char *member, bContextDataResult *r
 
 		return 1;
 	}
-	else if(CTX_data_equals(member, "texture_node")) {
-		PointerRNA *ptr;
+	else if(CTX_data_equals(member, "texture_user")) {
+		ButsContextTexture *ct= sbuts->texuser;
 
-		if((ptr=get_pointer_type(path, &RNA_Material))) {
-			Material *ma= ptr->data;
+		if(!ct)
+			return 0; /* old shading system */
 
-			if(ma) {
-				bNode *node= give_current_material_texture_node(ma);
-				CTX_data_pointer_set(result, &ma->id, &RNA_Node, node);
-			}
+		if(ct->user && ct->user->ptr.data) {
+			ButsTextureUser *user= ct->user; 
+			CTX_data_pointer_set(result, user->ptr.id.data, user->ptr.type, user->ptr.data);
 		}
 
 		return 1;
 	}
+	else if(CTX_data_equals(member, "texture_node")) {
+		ButsContextTexture *ct= sbuts->texuser;
+
+		if(ct) {
+			/* new shading system */
+			if(ct->user && ct->user->node)
+				CTX_data_pointer_set(result, &ct->user->ntree->id, &RNA_Node, ct->user->node);
+
+			return 1;
+		}
+		else {
+			/* old shading system */
+			PointerRNA *ptr;
+
+			if((ptr=get_pointer_type(path, &RNA_Material))) {
+				Material *ma= ptr->data;
+
+				if(ma) {
+					bNode *node= give_current_material_texture_node(ma);
+					CTX_data_pointer_set(result, &ma->id, &RNA_Node, node);
+				}
+			}
+
+			return 1;
+		}
+	}
 	else if(CTX_data_equals(member, "texture_slot")) {
+		ButsContextTexture *ct= sbuts->texuser;
 		PointerRNA *ptr;
 
+		if(ct)
+			return 0; /* new shading system */
+
 		if((ptr=get_pointer_type(path, &RNA_Material))) {
 			Material *ma= ptr->data;
 
diff --git a/source/blender/editors/space_buttons/buttons_intern.h b/source/blender/editors/space_buttons/buttons_intern.h
index 27084488163..aa692a940d8 100644
--- a/source/blender/editors/space_buttons/buttons_intern.h
+++ b/source/blender/editors/space_buttons/buttons_intern.h
@@ -31,14 +31,20 @@
 #ifndef ED_BUTTONS_INTERN_H
 #define ED_BUTTONS_INTERN_H
 
+#include "DNA_listBase.h"
+#include "RNA_types.h"
+
 struct ARegion;
 struct ARegionType;
+struct ID;
+struct SpaceButs;
+struct Tex;
 struct bContext;
 struct bContextDataResult;
-struct SpaceButs;
+struct bNode;
+struct bNodeTree;
 struct uiLayout;
 struct wmOperatorType;
-struct ID;
 
 /* buts->scaflag */		
 #define BUTS_SENS_SEL		1
@@ -53,6 +59,42 @@ struct ID;
 #define BUTS_SENS_STATE		512
 #define BUTS_ACT_STATE		1024
 
+/* context data */
+
+typedef struct ButsContextPath {
+	PointerRNA ptr[8];
+	int len;
+	int flag;
+	int tex_ctx;
+} ButsContextPath;
+
+typedef struct ButsTextureUser {
+	struct ButsTextureUser *next, *prev;
+
+	struct ID *id;
+
+	PointerRNA ptr;
+	PropertyRNA *prop;
+
+	struct bNodeTree *ntree;
+	struct bNode *node;
+
+	const char *category;
+	int icon;
+	const char *name;
+
+	int index;
+} ButsTextureUser;
+
+typedef struct ButsContextTexture {
+	ListBase users;
+
+	struct Tex *texture;
+
+	struct ButsTextureUser *user;
+	int index;
+} ButsContextTexture;
+
 /* internal exports only */
 
 /* buttons_header.c */
@@ -67,6 +109,9 @@ struct ID *buttons_context_id_path(const struct bContext *C);
 
 extern const char *buttons_context_dir[]; /* doc access */
 
+/* buttons_texture.c */
+void buttons_texture_context_compute(const struct bContext *C, struct SpaceButs *sbuts);
+
 /* buttons_ops.c */
 void BUTTONS_OT_file_browse(struct wmOperatorType *ot);
 void BUTTONS_OT_directory_browse(struct wmOperatorType *ot);
diff --git a/source/blender/editors/space_buttons/buttons_texture.c b/source/blender/editors/space_buttons/buttons_texture.c
new file mode 100644
index 00000000000..dd9f3c57896
--- /dev/null
+++ b/source/blender/editors/space_buttons/buttons_texture.c
@@ -0,0 +1,469 @@
+/*
+ * $Id$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version. 
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2009 Blender Foundation.
+ * All rights reserved.
+ *
+ * Contributor(s): Blender Foundation
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/space_buttons/buttons_texture.c
+ *  \ingroup spbuttons
+ */
+
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_listbase.h"
+#include "BLI_string.h"
+#include "BLI_utildefines.h"
+
+#include "DNA_brush_types.h"
+#include "DNA_ID.h"
+#include "DNA_lamp_types.h"
+#include "DNA_material_types.h"
+#include "DNA_node_types.h"
+#include "DNA_object_types.h"
+#include "DNA_object_force.h"
+#include "DNA_particle_types.h"
+#include "DNA_scene_types.h"
+#include "DNA_screen_types.h"
+#include "DNA_space_types.h"
+#include "DNA_world_types.h"
+
+#include "BKE_context.h"
+#include "BKE_material.h"
+#include "BKE_modifier.h"
+#include "BKE_node.h"
+#include "BKE_paint.h"
+#include "BKE_particle.h"
+#include "BKE_scene.h"
+
+#include "RNA_access.h"
+
+#include "UI_interface.h"
+#include "UI_resources.h"
+
+#include "ED_node.h"
+#include "ED_screen.h"
+
+#include "../interface/interface_intern.h"
+
+#include "buttons_intern.h"	// own include
+
+/************************* Texture User **************************/
+
+static void buttons_texture_user_property_add(ListBase *users, ID *id, 
+	PointerRNA ptr, PropertyRNA *prop,
+	const char *category, int icon, const char *name)
+{
+	ButsTextureUser *user = MEM_callocN(sizeof(ButsTextureUser), "ButsTextureUser");
+
+	user->id= id;
+	user->ptr = ptr;
+	user->prop = prop;
+	user->category = category;
+	user->icon = icon;
+	user->name = name;
+	user->index = BLI_countlist(users);
+
+	BLI_addtail(users, user);
+}
+
+static void buttons_texture_user_node_add(ListBase *users, ID *id, 
+	bNodeTree *ntree, bNode *node,
+	const char *category, int icon, const char *name)
+{
+	ButsTextureUser *user = MEM_callocN(sizeof(ButsTextureUser), "ButsTextureUser");
+
+	user->id= id;
+	user->ntree = ntree;
+	user->node = node;
+	user->category = category;
+	user->icon = icon;
+	user->name = name;
+	user->index = BLI_countlist(users);
+
+	BLI_addtail(users, user);
+}
+
+static void buttons_texture_users_find_nodetree(ListBase *users, ID *id,
+	bNodeTree *ntree, const char *category)
+{
+	bNode *node;
+
+	if(ntree) {
+		for(node=ntree->nodes.first; node; node=node->next) {
+			if(node->typeinfo->nclass == NODE_CLASS_TEXTURE) {
+				PointerRNA ptr;
+				PropertyRNA *prop;
+
+				RNA_pointer_create(&ntree->id, &RNA_Node, node, &ptr);
+				prop = RNA_struct_find_property(&ptr, "texture");
+
+				buttons_texture_user_node_add(users, id, ntree, node,
+					category, RNA_struct_ui_icon(ptr.type), node->name);
+			}
+			else if(node->type == NODE_GROUP && node->id) {
+				buttons_texture_users_find_nodetree(users, id, (bNodeTree*)node->id, category);
+			}
+		}
+	}
+}
+
+static void buttons_texture_modifier_foreach(void *userData, Object *ob, ModifierData *md, const char *propname)
+{
+	PointerRNA ptr;
+	PropertyRNA *prop;
+	ListBase *users = userData;
+
+	RNA_pointer_create(&ob->id, &RNA_Modifier, md, &ptr);
+	prop = RNA_struct_find_property(&ptr, propname);
+
+	buttons_texture_user_property_add(users, &ob->id, ptr, prop,
+		"Modifiers", RNA_struct_ui_icon(ptr.type), md->name);
+}
+
+static void buttons_texture_users_from_context(ListBase *users, const bContext *C, SpaceButs *sbuts)
+{
+	Scene *scene= NULL;
+	Object *ob= NULL;
+	Material *ma= NULL;
+	Lamp *la= NULL;
+	World *wrld= NULL;
+	Brush *brush= NULL;
+	ID *pinid = sbuts->pinid;
+
+	/* get data from context */
+	if(pinid) {
+		if(GS(pinid->name) == ID_SCE)
+			scene= (Scene*)pinid;
+		else if(GS(pinid->name) == ID_OB)
+			ob= (Object*)pinid;
+		else if(GS(pinid->name) == ID_LA)
+			la= (Lamp*)pinid;
+		else if(GS(pinid->name) == ID_WO)
+			wrld= (World*)pinid;
+		else if(GS(pinid->name) == ID_MA)
+			ma= (Material*)pinid;
+		else if(GS(pinid->name) == ID_BR)
+			brush= (Brush*)pinid;
+	}
+
+	if(!scene)
+		scene= CTX_data_scene(C);
+	
+	if(!(pinid || pinid == &scene->id)) {
+		ob= (scene->basact)? scene->basact->object: NULL;
+		wrld= scene->world;
+		brush= paint_brush(paint_get_active(scene));
+	}
+
+	if(ob && ob->type == OB_LAMP && !la)
+		la= ob->data;
+	if(ob && !ma)
+		ma= give_current_material(ob, ob->actcol);
+
+	/* fill users */
+	users->first = users->last = NULL;
+
+	if(ma)
+		buttons_texture_users_find_nodetree(users, &ma->id, ma->nodetree, "Material");
+	if(la)
+		buttons_texture_users_find_nodetree(users, &la->id, la->nodetree, "Lamp");
+	if(wrld)
+		buttons_texture_users_find_nodetree(users, &wrld->id, wrld->nodetree, "World");
+
+	if(ob) {
+		ParticleSystem *psys= psys_get_current(ob);
+		MTex *mtex;
+		int a;
+
+		/* modifiers */
+		modifiers_foreachTexLink(ob, buttons_texture_modifier_foreach, users);
+
+		/* particle systems */
+		if(psys) {
+			/* todo: these slots are not in the UI */
+			for(a=0; a<MAX_MTEX; a++) {
+				mtex = psys->part->mtex[a];
+
+				if(mtex) {
+					PointerRNA ptr;
+					PropertyRNA *prop;
+
+					RNA_pointer_create(&psys->part->id, &RNA_ParticleSettingsTextureSlot, mtex, &ptr);
+					prop = RNA_struct_find_property(&ptr, "texture");
+
+					buttons_texture_user_property_add(users, &psys->part->id, ptr, prop,
+						"Particles", RNA_struct_ui_icon(&RNA_ParticleSettings), psys->name);
+				}
+			}
+		}
+
+		/* field */
+		if(ob->pd && ob->pd->forcefield == PFIELD_TEXTURE) {
+			PointerRNA ptr;
+			PropertyRNA *prop;
+
+			RNA_pointer_create(&ob->id, &RNA_FieldSettings, ob->pd, &ptr);
+			prop = RNA_struct_find_property(&ptr, "texture");
+
+			buttons_texture_user_property_add(users, &ob->id, ptr, prop,
+				"Fields", ICON_FORCE_TEXTURE, "Texture Field");
+		}
+	}
+
+	/* brush */
+	if(brush) {
+		PointerRNA ptr;
+		PropertyRNA *prop;
+
+		RNA_pointer_create(&brush->id, &RNA_BrushTextureSlot, &brush->mtex, &ptr);
+		prop= RNA_struct_find_property(&ptr, "texture");
+
+		buttons_texture_user_property_add(users, &brush->id, ptr, prop,
+			"Brush", ICON_BRUSH_DATA, brush->id.name+2);
+	}
+}
+
+void buttons_texture_context_compute(const bContext *C, SpaceButs *sbuts)
+{
+	/* gatheravailable texture users in context. runs on every draw of
+	   properties editor, before the buttons are created. */
+	ButsContextTexture *ct= sbuts->texuser;
+	Scene *scene= CTX_data_scene(C);
+
+	if(!scene_use_new_shading_nodes(scene)) {
+		if(ct) {
+			MEM_freeN(ct);
+			BLI_freelistN(&ct->users);
+			sbuts->texuser= NULL;
+		}
+		
+		return;
+	}
+
+	if(!ct) {
+		ct= MEM_callocN(sizeof(ButsContextTexture), "ButsContextTexture");
+		sbuts->texuser= ct;
+	}
+	else {
+		BLI_freelistN(&ct->users);
+	}
+
+	buttons_texture_users_from_context(&ct->users, C, sbuts);
+
+	/* set one user as active based on active index */
+	if(ct->index >= BLI_countlist(&ct->users))
+		ct->index= 0;
+
+	ct->user = BLI_findlink(&ct->users, ct->index);
+	ct->texture = NULL;
+
+	if(ct->user) {
+		if(ct->user->ptr.data) {
+			PointerRNA texptr;
+			Tex *tex;
+
+			/* get texture datablock pointer if it's a property */
+			texptr = RNA_property_pointer_get(&ct->user->ptr, ct->user->prop);
+			tex = (RNA_struct_is_a(texptr.type, &RNA_Texture))? texptr.data: NULL;
+
+			ct->texture = tex;
+		}
+		else if(ct->user->node && !(ct->user->node->flag & NODE_ACTIVE_TEXTURE)) {
+			ButsTextureUser *user;
+
+			/* detect change of active texture node in same node tree, in that
+			   case we also automatically switch to the other node */
+			for(user=ct->users.first; user; user=user->next) {
+				if(user->ntree == ct->user->ntree && user->node != ct->user->node) {
+					if(user->node->flag & NODE_ACTIVE_TEXTURE) {
+						ct->user = user;
+						ct->index = BLI_findindex(&ct->users, user);
+						break;
+					}
+				}
+			}
+		}
+	}
+}
+
+static void template_texture_select(bContext *C, void *user_p, void *UNUSED(arg))
+{
+	/* callback when selecting a texture user in the menu */
+	SpaceButs *sbuts = CTX_wm_space_buts(C);
+	ButsContextTexture *ct= (sbuts)? sbuts->texuser: NULL;
+	ButsTextureUser *user = (ButsTextureUser*)user_p;
+	PointerRNA texptr;
+	Tex *tex;
+
+	if(!ct)
+		return;
+
+	/* set user as active */
+	if(user->node) {
+		ED_node_set_active(CTX_data_main(C), user->ntree, user->node);
+		ct->texture = NULL;
+	}
+	else {
+		texptr = RNA_property_pointer_get(&user->ptr, user->prop);
+		tex = (RNA_struct_is_a(texptr.type, &RNA_Texture))? texptr.data: NULL;
+
+		ct->texture = tex;
+	}
+
+	ct->user = user;
+	ct->index = user->index;
+}
+
+static void template_texture_user_menu(bContext *C, uiLayout *layout, void *UNUSED(arg))
+{
+	/* callback when opening texture user selection menu, to create buttons. */
+	SpaceButs *sbuts = CTX_wm_space_buts(C);
+	ButsContextTexture *ct= (sbuts)? sbuts->texuser: NULL;
+	ButsTextureUser *user;
+	uiBlock *block = uiLayoutGetBlock(layout);
+	const char *last_category = NULL;
+
+	for(user=ct->users.first; user; user=user->next) {
+		uiBut *but;
+		char name[UI_MAX_NAME_STR];
+
+		/* add label per category */
+		if(!last_category || strcmp(last_category, user->category) != 0) {
+			uiItemL(layout, user->category, ICON_NONE);
+			but= block->buttons.last;
+			but->flag= UI_TEXT_LEFT;
+		}
+
+		/* create button */
+		BLI_snprintf(name, UI_MAX_NAME_STR, "  %s", user->name);
+
+		but = uiDefIconTextBut(block, BUT, 0, user->icon, name, 0, 0, UI_UNIT_X*4, UI_UNIT_Y,
+			NULL, 0.0, 0.0, 0.0, 0.0, "");
+		uiButSetNFunc(but, template_texture_select, MEM_dupallocN(user), NULL);
+
+		last_category = user->category;
+	}
+}
+
+void uiTemplateTextureUser(uiLayout *layout, bContext *C)
+{
+	/* texture user selection dropdown menu. the available users have been
+	   gathered before drawing in ButsContextTexture, we merely need to
+	   display the current item. */
+	SpaceButs *sbuts = CTX_wm_space_buts(C);
+	ButsContextTexture *ct= (sbuts)? sbuts->texuser: NULL;
+	uiBlock *block = uiLayoutGetBlock(layout);
+	uiBut *but;
+	ButsTextureUser *user;
+	char name[UI_MAX_NAME_STR];
+
+	if(!ct)
+		return;
+
+	/* get current user */
+	user= ct->user;
+
+	if(!user) {
+		uiItemL(layout, "No textures in context.", ICON_NONE);
+		return;
+	}
+
+	/* create button */
+	BLI_snprintf(name, UI_MAX_NAME_STR, "%s", user->name);
+
+	if(user->icon) {
+		but= uiDefIconTextMenuBut(block, template_texture_user_menu, NULL,
+			user->icon, name, 0, 0, UI_UNIT_X*4, UI_UNIT_Y, "");
+	}
+	else {
+		but= uiDefMenuBut(block, template_texture_user_menu, NULL,
+			name, 0, 0, UI_UNIT_X*4, UI_UNIT_Y, "");
+	}
+
+	/* some cosmetic tweaks */
+	but->type= MENU;
+	but->flag |= UI_TEXT_LEFT;
+	but->flag &= ~UI_ICON_SUBMENU;
+}
+
+/************************* Texture Show **************************/
+
+static void template_texture_show(bContext *C, void *data_p, void *prop_p)
+{
+	SpaceButs *sbuts = CTX_wm_space_buts(C);
+	ButsContextTexture *ct= (sbuts)? sbuts->texuser: NULL;
+	ButsTextureUser *user;
+
+	if(!ct)
+		return;
+
+	for(user=ct->users.first; user; user=user->next)
+		if(user->ptr.data == data_p && user->prop == prop_p)
+			break;
+	
+	if(user) {
+		/* select texture */
+		template_texture_select(C, user, NULL);
+
+		/* change context */
+		sbuts->mainb= BCONTEXT_TEXTURE;
+		sbuts->mainbuser= sbuts->mainb;
+		sbuts->preview= 1;
+
+		/* redraw editor */
+		ED_area_tag_redraw(CTX_wm_area(C));
+	}
+}
+
+void uiTemplateTextureShow(uiLayout *layout, bContext *C, PointerRNA *ptr, PropertyRNA *prop)
+{
+	/* button to quickly show texture in texture tab */
+	SpaceButs *sbuts = CTX_wm_space_buts(C);
+	ButsContextTexture *ct= (sbuts)? sbuts->texuser: NULL;
+	ButsTextureUser *user;
+
+	/* only show button in other tabs in properties editor */
+	if(!ct || sbuts->mainb == BCONTEXT_TEXTURE)
+		return;
+
+	/* find corresponding texture user */
+	for(user=ct->users.first; user; user=user->next)
+		if(user->ptr.data == ptr->data && user->prop == prop)
+			break;
+	
+	/* draw button */
+	if(user) {
+		uiBlock *block = uiLayoutGetBlock(layout);
+		uiBut *but;
+		
+		but= uiDefIconBut(block, BUT, 0, ICON_BUTS, 0, 0, UI_UNIT_X, UI_UNIT_Y,
+			NULL, 0.0, 0.0, 0.0, 0.0, "Show texture in texture tab");
+		uiButSetFunc(but, template_texture_show, user->ptr.data, user->prop);
+	}
+}
+
diff --git a/source/blender/editors/space_buttons/space_buttons.c b/source/blender/editors/space_buttons/space_buttons.c
index 4c328d174e9..0c326af406f 100644
--- a/source/blender/editors/space_buttons/space_buttons.c
+++ b/source/blender/editors/space_buttons/space_buttons.c
@@ -104,6 +104,12 @@ static void buttons_free(SpaceLink *sl)
 
 	if(sbuts->path)
 		MEM_freeN(sbuts->path);
+	
+	if(sbuts->texuser) {
+		ButsContextTexture *ct= sbuts->texuser;
+		BLI_freelistN(&ct->users);
+		MEM_freeN(ct);
+	}
 }
 
 /* spacetype; init callback */
@@ -127,6 +133,7 @@ static SpaceLink *buttons_duplicate(SpaceLink *sl)
 	/* clear or remove stuff from old */
 	sbutsn->ri= NULL;
 	sbutsn->path= NULL;
+	sbutsn->texuser= NULL;
 	
 	return (SpaceLink *)sbutsn;
 }