Implemented dynamic and multidimensional array support in RNA.

Example code: http://www.pasteall.org/7332/c.
New API functions: http://www.pasteall.org/7330/c.

Maximum number of dimensions is currently limited to 3, but can be increased arbitrarily if needed.

What this means for ID property access:

* MeshFace.verts - dynamic array, size 3 or 4 depending on MFace.v4
* MeshTextureFace.uv - dynamic, 2-dimensional array, size depends on MFace.v4
* Object.matrix - 2-dimensional array

What this means for functions:

* more intuitive API possibility, for example:
  Mesh.add_vertices([(x, y, z), (x, y, z), ...])
  Mesh.add_faces([(1, 2, 3), (4, 5, 6), ...])

Python part is not complete yet, e.g. it is possible to:

MeshFace.verts = (1, 2, 3) # even if Mesh.verts is (1, 2, 3, 4) and vice-versa
MeshTextureFace.uv = [(0.0, 0.0)] * 4 # only if a corresponding MFace is a quad

but the following won't work:

MeshTextureFace.uv[3] = (0.0, 0.0) # setting uv[3] modifies MTFace.uv[1][0] instead of MTFace.uv[3]

5 files changed, 18 insertions, 18 deletions

diff --git a/source/blender/editors/interface/interface.c b/source/blender/editors/interface/interface.c
index 9bd6c2577ff..3c6e12905d6 100644
--- a/source/blender/editors/interface/interface.c
+++ b/source/blender/editors/interface/interface.c
@@ -1089,7 +1089,7 @@ void ui_get_but_vectorf(uiBut *but, float *vec)
 		vec[0]= vec[1]= vec[2]= 0.0f;
 
 		if(RNA_property_type(prop) == PROP_FLOAT) {
-			tot= RNA_property_array_length(prop);
+			tot= RNA_property_array_length(&but->rnapoin, prop);
 			tot= MIN2(tot, 3);
 
 			for(a=0; a<tot; a++)
@@ -1123,7 +1123,7 @@ void ui_set_but_vectorf(uiBut *but, float *vec)
 		prop= but->rnaprop;
 
 		if(RNA_property_type(prop) == PROP_FLOAT) {
-			tot= RNA_property_array_length(prop);
+			tot= RNA_property_array_length(&but->rnapoin, prop);
 			tot= MIN2(tot, 3);
 
 			for(a=0; a<tot; a++)
@@ -1181,19 +1181,19 @@ double ui_get_but_val(uiBut *but)
 
 		switch(RNA_property_type(prop)) {
 			case PROP_BOOLEAN:
-				if(RNA_property_array_length(prop))
+				if(RNA_property_array_length(&but->rnapoin, prop))
 					value= RNA_property_boolean_get_index(&but->rnapoin, prop, but->rnaindex);
 				else
 					value= RNA_property_boolean_get(&but->rnapoin, prop);
 				break;
 			case PROP_INT:
-				if(RNA_property_array_length(prop))
+				if(RNA_property_array_length(&but->rnapoin, prop))
 					value= RNA_property_int_get_index(&but->rnapoin, prop, but->rnaindex);
 				else
 					value= RNA_property_int_get(&but->rnapoin, prop);
 				break;
 			case PROP_FLOAT:
-				if(RNA_property_array_length(prop))
+				if(RNA_property_array_length(&but->rnapoin, prop))
 					value= RNA_property_float_get_index(&but->rnapoin, prop, but->rnaindex);
 				else
 					value= RNA_property_float_get(&but->rnapoin, prop);
@@ -1245,19 +1245,19 @@ void ui_set_but_val(uiBut *but, double value)
 		if(RNA_property_editable(&but->rnapoin, prop)) {
 			switch(RNA_property_type(prop)) {
 				case PROP_BOOLEAN:
-					if(RNA_property_array_length(prop))
+					if(RNA_property_array_length(&but->rnapoin, prop))
 						RNA_property_boolean_set_index(&but->rnapoin, prop, but->rnaindex, value);
 					else
 						RNA_property_boolean_set(&but->rnapoin, prop, value);
 					break;
 				case PROP_INT:
-					if(RNA_property_array_length(prop))
+					if(RNA_property_array_length(&but->rnapoin, prop))
 						RNA_property_int_set_index(&but->rnapoin, prop, but->rnaindex, value);
 					else
 						RNA_property_int_set(&but->rnapoin, prop, value);
 					break;
 				case PROP_FLOAT:
-					if(RNA_property_array_length(prop))
+					if(RNA_property_array_length(&but->rnapoin, prop))
 						RNA_property_float_set_index(&but->rnapoin, prop, but->rnaindex, value);
 					else
 						RNA_property_float_set(&but->rnapoin, prop, value);
@@ -2414,7 +2414,7 @@ uiBut *ui_def_but_rna(uiBlock *block, int type, int retval, char *str, short x1,
 		but->rnapoin= *ptr;
 		but->rnaprop= prop;
 
-		if(RNA_property_array_length(but->rnaprop))
+		if(RNA_property_array_length(&but->rnapoin, but->rnaprop))
 			but->rnaindex= index;
 		else
 			but->rnaindex= 0;
diff --git a/source/blender/editors/interface/interface_anim.c b/source/blender/editors/interface/interface_anim.c
index 2993a1aba15..784d820ea52 100644
--- a/source/blender/editors/interface/interface_anim.c
+++ b/source/blender/editors/interface/interface_anim.c
@@ -217,7 +217,7 @@ void ui_but_anim_menu(bContext *C, uiBut *but)
 		pup= uiPupMenuBegin(C, RNA_property_ui_name(but->rnaprop), 0);
 		layout= uiPupMenuLayout(pup);
 		
-		length= RNA_property_array_length(but->rnaprop);
+		length= RNA_property_array_length(&but->rnapoin, but->rnaprop);
 		
 		if(but->flag & UI_BUT_ANIMATED_KEY) {
 			if(length) {
diff --git a/source/blender/editors/interface/interface_layout.c b/source/blender/editors/interface/interface_layout.c
index 3b4471bd4b9..a52afcb1a92 100644
--- a/source/blender/editors/interface/interface_layout.c
+++ b/source/blender/editors/interface/interface_layout.c
@@ -760,7 +760,7 @@ void uiItemO(uiLayout *layout, char *name, int icon, char *opname)
 
 /* RNA property items */
 
-static void ui_item_rna_size(uiLayout *layout, char *name, int icon, PropertyRNA *prop, int index, int *r_w, int *r_h)
+static void ui_item_rna_size(uiLayout *layout, char *name, int icon, PointerRNA *ptr, PropertyRNA *prop, int index, int *r_w, int *r_h)
 {
 	PropertyType type;
 	PropertySubType subtype;
@@ -769,7 +769,7 @@ static void ui_item_rna_size(uiLayout *layout, char *name, int icon, PropertyRNA
 	/* arbitrary extended width by type */
 	type= RNA_property_type(prop);
 	subtype= RNA_property_subtype(prop);
-	len= RNA_property_array_length(prop);
+	len= RNA_property_array_length(ptr, prop);
 
 	if(ELEM3(type, PROP_STRING, PROP_POINTER, PROP_ENUM) && !name[0])
 		name= "non-empty text";
@@ -819,7 +819,7 @@ void uiItemFullR(uiLayout *layout, char *name, int icon, PointerRNA *ptr, Proper
 
 	/* retrieve info */
 	type= RNA_property_type(prop);
-	len= RNA_property_array_length(prop);
+	len= RNA_property_array_length(ptr, prop);
 
 	/* set name and icon */
 	if(!name)
@@ -846,7 +846,7 @@ void uiItemFullR(uiLayout *layout, char *name, int icon, PointerRNA *ptr, Proper
 	expand= (flag & UI_ITEM_R_EXPAND);
 
 	/* get size */
-	ui_item_rna_size(layout, name, icon, prop, index, &w, &h);
+	ui_item_rna_size(layout, name, icon, ptr, prop, index, &w, &h);
 
 	/* array property */
 	if(index == RNA_NO_INDEX && len > 0)
@@ -1132,7 +1132,7 @@ void uiItemPointerR(uiLayout *layout, char *name, int icon, struct PointerRNA *p
 	/* create button */
 	block= uiLayoutGetBlock(layout);
 
-	ui_item_rna_size(layout, name, icon, prop, 0, &w, &h);
+	ui_item_rna_size(layout, name, icon, ptr, prop, 0, &w, &h);
 	but= ui_item_with_label(layout, block, name, icon, ptr, prop, 0, 0, 0, w, h);
 
 	ui_but_add_search(but, ptr, prop, searchptr, searchprop);
diff --git a/source/blender/editors/interface/interface_templates.c b/source/blender/editors/interface/interface_templates.c
index 56badedaded..4cfc44e56c8 100644
--- a/source/blender/editors/interface/interface_templates.c
+++ b/source/blender/editors/interface/interface_templates.c
@@ -1258,7 +1258,7 @@ void uiTemplateLayers(uiLayout *layout, PointerRNA *ptr, char *propname)
 	 *	  the 'remainder' is added to this, as it will be ok to have first row slightly wider if need be
 	 *	- for now, only split into groups if if group will have at least 5 items
 	 */
-	layers= RNA_property_array_length(prop);
+	layers= RNA_property_array_length(ptr, prop);
 	cols= (layers / 2) + (layers % 2);
 	groups= ((cols / 2) < 5) ? (1) : (cols / 2);
 	
diff --git a/source/blender/editors/interface/interface_utils.c b/source/blender/editors/interface/interface_utils.c
index 997ac8b78c6..5b44f6544d1 100644
--- a/source/blender/editors/interface/interface_utils.c
+++ b/source/blender/editors/interface/interface_utils.c
@@ -72,7 +72,7 @@ uiBut *uiDefAutoButR(uiBlock *block, PointerRNA *ptr, PropertyRNA *prop, int ind
 {
 	uiBut *but=NULL;
 	const char *propname= RNA_property_identifier(prop);
-	int arraylen= RNA_property_array_length(prop);
+	int arraylen= RNA_property_array_length(ptr, prop);
 
 	switch(RNA_property_type(prop)) {
 		case PROP_BOOLEAN: {
@@ -81,7 +81,7 @@ uiBut *uiDefAutoButR(uiBlock *block, PointerRNA *ptr, PropertyRNA *prop, int ind
 			if(arraylen && index == -1)
 				return NULL;
 
-			length= RNA_property_array_length(prop);
+			length= RNA_property_array_length(ptr, prop);
 
 			if(length)
 				value= RNA_property_boolean_get_index(ptr, prop, index);