RNA

* Enums can now be dynamically created in the _itemf callback,
  using RNA_enum_item(s)_add, RNA_enum_item_end. All places asking
  for enum items now need to potentially free the items.
* This callback now also gets context, this was added specifically
  for operators. This doesn't fit design well at all, needed to do
  some ugly hacks, but can't find a good solution at the moment.
* All enums must have a default list of items too, even with an
  _itemf callback, for docs and fallback in case there is no context.

* Used by MESH_OT_merge, MESH_OT_select_similar, TFM_OT_select_orientation.
* Also changes some operator properties that were enums to booleas
  (unselected, deselect), to make them consistent with other ops.

1 files changed, 35 insertions, 1 deletions

diff --git a/source/blender/makesrna/intern/rna_define.c b/source/blender/makesrna/intern/rna_define.c
index 2b414adf05b..07515d3ad56 100644
--- a/source/blender/makesrna/intern/rna_define.c
+++ b/source/blender/makesrna/intern/rna_define.c
@@ -1112,7 +1112,7 @@ void RNA_def_property_enum_items(PropertyRNA *prop, const EnumPropertyItem *item
 	switch(prop->type) {
 		case PROP_ENUM: {
 			EnumPropertyRNA *eprop= (EnumPropertyRNA*)prop;
-			eprop->item= item;
+			eprop->item= (EnumPropertyItem*)item;
 			eprop->totitem= 0;
 			for(i=0; item[i].identifier; i++) {
 				eprop->totitem++;
@@ -2262,3 +2262,37 @@ int rna_parameter_size(PropertyRNA *parm)
 	return sizeof(void *);
 }
 
+/* Dynamic Enums */
+
+void RNA_enum_item_add(EnumPropertyItem **items, int *totitem, EnumPropertyItem *item)
+{
+	EnumPropertyItem *newitems;
+	int tot= *totitem;
+
+	if(tot == 0) {
+		*items= MEM_callocN(sizeof(EnumPropertyItem)*8, "RNA_enum_items_add");
+	}
+	else if(tot >= 8 && (tot&(tot-1)) == 0){
+		/* power of two > 8 */
+		newitems= MEM_callocN(sizeof(EnumPropertyItem)*tot*2, "RNA_enum_items_add");
+		memcpy(newitems, *items, sizeof(EnumPropertyItem)*tot);
+		MEM_freeN(*items);
+		*items= newitems;
+	}
+
+	(*items)[tot]= *item;
+	*totitem= tot+1;
+}
+
+void RNA_enum_items_add(EnumPropertyItem **items, int *totitem, EnumPropertyItem *item)
+{
+	for(; item->identifier; item++)
+		RNA_enum_item_add(items, totitem, item);
+}
+
+void RNA_enum_item_end(EnumPropertyItem **items, int *totitem)
+{
+	static EnumPropertyItem empty = {0, NULL, 0, NULL, NULL};
+	RNA_enum_item_add(items, totitem, &empty);
+}
+