2.5: Screen/Scene New/Delete operators.

Implementation Note:
* Moved the scene copy/unlink code back into blenkernel, with
  the exception of the copy single user stuff which is still in
  object_edit.c.
* Uses SCREENDELETE notifier like SCREENBROWSE, seems only clean
  way to do this now.

7 files changed, 195 insertions, 2 deletions

diff --git a/source/blender/blenkernel/BKE_animsys.h b/source/blender/blenkernel/BKE_animsys.h
index 2447d1823af..cabbaa7aa0f 100644
--- a/source/blender/blenkernel/BKE_animsys.h
+++ b/source/blender/blenkernel/BKE_animsys.h
@@ -66,6 +66,9 @@ void BKE_keyingset_add_destination(struct KeyingSet *ks, struct ID *id, const ch
 
 struct KS_Path *BKE_keyingset_find_destination(struct KeyingSet *ks, struct ID *id, const char group_name[], const char rna_path[], int array_index, int group_mode);
 
+/* Copy all KeyingSets in the given list */
+void BKE_keyingsets_copy(struct ListBase *newlist, struct ListBase *list);
+
 /* Free data for KeyingSet but not set itself */
 void BKE_keyingset_free(struct KeyingSet *ks);
 
diff --git a/source/blender/blenkernel/BKE_node.h b/source/blender/blenkernel/BKE_node.h
index 87ee8f9cab3..183cdaff0e6 100644
--- a/source/blender/blenkernel/BKE_node.h
+++ b/source/blender/blenkernel/BKE_node.h
@@ -47,6 +47,7 @@ struct rctf;
 struct ListBase;
 struct RenderData;
 struct Scene;
+struct Main;
 struct Tex;
 struct GPUMaterial;
 struct GPUNode;
@@ -432,4 +433,8 @@ char* ntreeTexOutputMenu(struct bNodeTree *ntree);
 void init_nodesystem(void);
 void free_nodesystem(void);
 
+/**/
+
+void clear_scene_in_nodes(struct Main *bmain, struct Scene *sce);
+
 #endif
diff --git a/source/blender/blenkernel/BKE_scene.h b/source/blender/blenkernel/BKE_scene.h
index 9bb246f88cc..12a13a2b50c 100644
--- a/source/blender/blenkernel/BKE_scene.h
+++ b/source/blender/blenkernel/BKE_scene.h
@@ -40,6 +40,12 @@ struct AviCodecData;
 struct QuicktimeCodecData;
 struct RenderData;
 struct Text;
+struct Main;
+
+#define SCE_COPY_EMPTY		0
+#define SCE_COPY_LINK_OB	1
+#define SCE_COPY_LINK_DATA	2
+#define SCE_COPY_FULL		3
 
 /* note; doesn't work when scene is empty */
 #define SETLOOPER(s, b) sce= s, b= (Base*)sce->base.first; b; b= (Base*)(b->next?b->next:sce->set?(sce=sce->set)->base.first:NULL)
@@ -48,13 +54,16 @@ struct Text;
 void free_avicodecdata(struct AviCodecData *acd);
 void free_qtcodecdata(struct QuicktimeCodecData *acd);
 
-void free_scene(struct Scene *me);
+void free_scene(struct Scene *sce);
 struct Scene *add_scene(char *name);
 struct Base *object_in_scene(struct Object *ob, struct Scene *sce);
 
 void set_scene_bg(struct Scene *sce);
 void set_scene_name(char *name);
 
+struct Scene *copy_scene(struct Main *bmain, struct Scene *sce, int type);
+void unlink_scene(struct Main *bmain, struct Scene *sce, struct Scene *newsce);
+
 int next_object(struct Scene *scene, int val, struct Base **base, struct Object **ob);
 struct Object *scene_find_camera(struct Scene *sc);
 
diff --git a/source/blender/blenkernel/BKE_sequence.h b/source/blender/blenkernel/BKE_sequence.h
index 35cff5c9422..f72617c8312 100644
--- a/source/blender/blenkernel/BKE_sequence.h
+++ b/source/blender/blenkernel/BKE_sequence.h
@@ -184,3 +184,7 @@ int shuffle_seq(struct ListBase * seqbasep, struct Sequence *test);
 void free_imbuf_seq(struct ListBase * seqbasep, int check_mem_usage);
 
 void seq_update_sound(struct Sequence *seq);
+
+void clear_scene_in_allseqs(struct Scene *sce);
+
+
diff --git a/source/blender/blenkernel/intern/anim_sys.c b/source/blender/blenkernel/intern/anim_sys.c
index 983f1ecc31c..204935cc38d 100644
--- a/source/blender/blenkernel/intern/anim_sys.c
+++ b/source/blender/blenkernel/intern/anim_sys.c
@@ -342,6 +342,21 @@ void BKE_keyingset_add_destination (KeyingSet *ks, ID *id, const char group_name
 	BLI_addtail(&ks->paths, ksp);
 }	
 
+/* Copy all KeyingSets in the given list */
+void BKE_keyingsets_copy(ListBase *newlist, ListBase *list)
+{
+	KeyingSet *ksn;
+	KS_Path *kspn;
+
+	BLI_duplicatelist(newlist, list);
+
+	for(ksn=newlist->first; ksn; ksn=ksn->next) {
+		BLI_duplicatelist(&ksn->paths, &ksn->paths);
+
+		for(kspn=ksn->paths.first; kspn; kspn=kspn->next)
+			kspn->rna_path= MEM_dupallocN(kspn->rna_path);
+	}
+}
 
 /* Freeing Tools --------------------------- */
 
diff --git a/source/blender/blenkernel/intern/node.c b/source/blender/blenkernel/intern/node.c
index 0f42ba0d2e2..836f4281eb9 100644
--- a/source/blender/blenkernel/intern/node.c
+++ b/source/blender/blenkernel/intern/node.c
@@ -3112,3 +3112,29 @@ void free_nodesystem(void)
 	BLI_freelistN(&node_all_shaders);
 	BLI_freelistN(&node_all_textures);
 }
+
+/* called from unlink_scene, when deleting a scene goes over all scenes
+ * other than the input, checks if they have render layer nodes referencing
+ * the to-be-deleted scene, and resets them to NULL. */
+
+/* XXX needs to get current scene then! */
+void clear_scene_in_nodes(Main *bmain, Scene *sce)
+{
+	Scene *sce1;
+	bNode *node;
+
+	for(sce1= bmain->scene.first; sce1; sce1=sce1->id.next) {
+		if(sce1!=sce) {
+			if(sce1->nodetree) {
+				for(node= sce1->nodetree->nodes.first; node; node= node->next) {
+					if(node->type==CMP_NODE_R_LAYERS) {
+						Scene *nodesce= (Scene *)node->id;
+						
+						if (nodesce==sce) node->id = NULL;
+					}
+				}
+			}
+		}
+	}
+}
+
diff --git a/source/blender/blenkernel/intern/scene.c b/source/blender/blenkernel/intern/scene.c
index 0e987850acd..83b1976aabe 100644
--- a/source/blender/blenkernel/intern/scene.c
+++ b/source/blender/blenkernel/intern/scene.c
@@ -54,6 +54,7 @@
 #include "DNA_meta_types.h"
 #include "DNA_object_types.h"
 #include "DNA_scene_types.h"
+#include "DNA_screen_types.h"
 #include "DNA_texture_types.h"
 #include "DNA_userdef_types.h"
 
@@ -125,7 +126,113 @@ void free_qtcodecdata(QuicktimeCodecData *qcd)
 	}
 }
 
-/* copy_scene moved to src/header_info.c... should be back */
+Scene *copy_scene(Main *bmain, Scene *sce, int type)
+{
+	Scene *scen;
+	ToolSettings *ts;
+	Base *base, *obase;
+	
+	if(type == SCE_COPY_EMPTY) {
+		ListBase lb;
+		scen= add_scene(sce->id.name+2);
+		
+		lb= scen->r.layers;
+		scen->r= sce->r;
+		scen->r.layers= lb;
+	}
+	else {
+		scen= copy_libblock(sce);
+		BLI_duplicatelist(&(scen->base), &(sce->base));
+		
+		clear_id_newpoins();
+		
+		id_us_plus((ID *)scen->world);
+		id_us_plus((ID *)scen->set);
+		id_us_plus((ID *)scen->ima);
+		id_us_plus((ID *)scen->gm.dome.warptext);
+
+		scen->ed= NULL;
+		scen->theDag= NULL;
+		scen->obedit= NULL;
+		scen->toolsettings= MEM_dupallocN(sce->toolsettings);
+
+		ts= scen->toolsettings;
+		if(ts) {
+			if(ts->vpaint) {
+				ts->vpaint= MEM_dupallocN(ts->vpaint);
+				ts->vpaint->paintcursor= NULL;
+				ts->vpaint->vpaint_prev= NULL;
+				ts->vpaint->wpaint_prev= NULL;
+				id_us_plus((ID *)ts->vpaint->brush);
+			}
+			if(ts->wpaint) {
+				ts->wpaint= MEM_dupallocN(ts->wpaint);
+				ts->wpaint->paintcursor= NULL;
+				ts->wpaint->vpaint_prev= NULL;
+				ts->wpaint->wpaint_prev= NULL;
+				id_us_plus((ID *)ts->wpaint->brush);
+			}
+			if(ts->sculpt) {
+				ts->sculpt= MEM_dupallocN(ts->sculpt);
+				ts->sculpt->session= NULL;
+				id_us_plus((ID *)ts->sculpt->brush);
+			}
+
+			id_us_plus((ID *)ts->imapaint.brush);
+			ts->imapaint.paintcursor= NULL;
+
+			ts->particle.paintcursor= NULL;
+		}
+		
+		BLI_duplicatelist(&(scen->markers), &(sce->markers));
+		BLI_duplicatelist(&(scen->transform_spaces), &(sce->transform_spaces));
+		BLI_duplicatelist(&(scen->r.layers), &(sce->r.layers));
+		BKE_keyingsets_copy(&(scen->keyingsets), &(sce->keyingsets));
+		
+		scen->nodetree= ntreeCopyTree(sce->nodetree, 0);
+		
+		obase= sce->base.first;
+		base= scen->base.first;
+		while(base) {
+			id_us_plus(&base->object->id);
+			if(obase==sce->basact) scen->basact= base;
+	
+			obase= obase->next;
+			base= base->next;
+		}
+	}
+	
+	/* make a private copy of the avicodecdata */
+	if(sce->r.avicodecdata) {
+		scen->r.avicodecdata = MEM_dupallocN(sce->r.avicodecdata);
+		scen->r.avicodecdata->lpFormat = MEM_dupallocN(scen->r.avicodecdata->lpFormat);
+		scen->r.avicodecdata->lpParms = MEM_dupallocN(scen->r.avicodecdata->lpParms);
+	}
+	
+	/* make a private copy of the qtcodecdata */
+	if(sce->r.qtcodecdata) {
+		scen->r.qtcodecdata = MEM_dupallocN(sce->r.qtcodecdata);
+		scen->r.qtcodecdata->cdParms = MEM_dupallocN(scen->r.qtcodecdata->cdParms);
+	}
+	
+	/* NOTE: part of SCE_COPY_LINK_DATA and SCE_COPY_FULL operations
+	 * are done outside of blenkernel with ED_objects_single_users! */
+
+    /*  camera */
+	if(type == SCE_COPY_LINK_DATA || type == SCE_COPY_FULL) {
+	    ID_NEW(scen->camera);
+	}
+
+	/* world */
+	if(type == SCE_COPY_FULL) {
+        if(scen->world) {
+            id_us_plus((ID *)scen->world);
+            scen->world= copy_world(scen->world);
+        }
+	}
+
+	return scen;
+}
 
 /* do not free scene itself */
 void free_scene(Scene *sce)
@@ -413,6 +520,30 @@ void set_scene_name(char *name)
 	//XXX error("Can't find scene: %s", name);
 }
 
+void unlink_scene(Main *bmain, Scene *sce, Scene *newsce)
+{
+	Scene *sce1;
+	bScreen *sc;
+
+	/* check all sets */
+	for(sce1= bmain->scene.first; sce1; sce1= sce1->id.next)
+		if(sce1->set == sce)
+			sce1->set= NULL;
+	
+	/* check all sequences */
+	clear_scene_in_allseqs(sce);
+
+	/* check render layer nodes in other scenes */
+	clear_scene_in_nodes(bmain, sce);
+	
+	/* al screens */
+	for(sc= bmain->screen.first; sc; sc= sc->id.next)
+		if(sc->scene == sce)
+			sc->scene= newsce;
+
+	free_libblock(&bmain->scene, sce);
+}
+
 /* used by metaballs
  * doesnt return the original duplicated object, only dupli's
  */