presets for operators, re-using same preset system as render, cloth etc use.

- operators need to enable the option OPTYPE_PRESET or 'PRESET' in python.
- hidden properties are not written.
- currently this only works in the file selector (enabled for FBX/OBJ export)
- currently the menu label doesnt change when presets are selected, this is a TODO, not so simple since the UI is defined in C and the label in python.
- presets save in "scripts/presets/operators/*id*/*.py"

release/scripts/op/io_scene_fbx/__init__.py

@@ -34,6 +34,7 @@ class ExportFBX(bpy.types.Operator, ExportHelper):
     '''Selection to an ASCII Autodesk FBX'''
     bl_idname = "export_scene.fbx"
     bl_label = "Export FBX"
+    bl_options = {'PRESET'}
 
     filename_ext = ".fbx"
     filter_glob = StringProperty(default="*.fbx", options={'HIDDEN'})

release/scripts/op/io_scene_obj/__init__.py

@@ -65,6 +65,7 @@ class ExportOBJ(bpy.types.Operator, ExportHelper):
 
     bl_idname = "export_scene.obj"
     bl_label = 'Export OBJ'
+    bl_options = {'PRESET'}
 
     filename_ext = ".obj"
     filter_glob = StringProperty(default="*.obj;*.mtl", options={'HIDDEN'})

release/scripts/op/presets.py

@@ -301,6 +301,57 @@ class AddPresetKeyconfig(AddPresetBase, bpy.types.Operator):
             keyconfigs.remove(keyconfigs.active)
 
 
+class AddPresetOperator(AddPresetBase, bpy.types.Operator):
+    '''Add an Application Interaction Preset'''
+    bl_idname = "wm.operator_preset_add"
+    bl_label = "Operator Preset"
+    preset_menu = "WM_MT_operator_presets"
+
+    operator = bpy.props.StringProperty(name="Operator", maxlen=64, options={'HIDDEN'})
+
+    # XXX, not ideal
+    preset_defines = [
+        "op = bpy.context.space_data.operator",
+    ]
+
+    @property
+    def preset_subdir(self):
+        return __class__.operator_path(self.operator)
+
+    @property
+    def preset_values(self):
+        properties_blacklist = bpy.types.Operator.bl_rna.properties.keys()
+
+        prefix, suffix = self.operator.split("_OT_", 1)
+        operator_rna = getattr(getattr(bpy.ops, prefix.lower()), suffix).get_rna().bl_rna
+
+        ret = []
+        for prop_id, prop in operator_rna.properties.items():
+            if (not prop.is_hidden) and prop_id not in properties_blacklist:
+                    ret.append("op.%s" % prop_id)
+
+        return ret
+
+    @staticmethod
+    def operator_path(operator):
+        import os
+        prefix, suffix = operator.split("_OT_", 1)
+        return os.path.join("operator", "%s.%s" % (prefix.lower(), suffix))
+
+
+class WM_MT_operator_presets(bpy.types.Menu):
+    bl_label = "Operator Presets"
+
+    def draw(self, context):
+        self.operator = context.space_data.operator.bl_idname
+        bpy.types.Menu.draw_preset(self, context)
+
+    @property
+    def preset_subdir(self):
+        return AddPresetOperator.operator_path(self.operator)
+
+    preset_operator = "script.execute_preset"
+
 def register():
     pass
 

source/blender/editors/interface/interface_layout.c

@@ -2702,7 +2702,26 @@ void uiLayoutOperatorButs(const bContext *C, uiLayout *layout, wmOperator *op,in
 		int empty;
 
 		RNA_pointer_create(&wm->id, op->type->srna, op->properties, &ptr);
-		
+
+		/* menu */
+		if(op->type->flag & OPTYPE_PRESET) {
+			/* XXX, no simple way to get WM_MT_operator_presets.bl_label from python! Label remains the same always! */
+			PointerRNA op_ptr;
+			uiLayout *row;
+
+			row= uiLayoutRow(layout, TRUE);
+			uiItemM(row, (bContext *)C, "WM_MT_operator_presets", NULL, ICON_NULL);
+
+			WM_operator_properties_create(&op_ptr, "WM_OT_operator_preset_add");
+			RNA_string_set(&op_ptr, "operator", op->type->idname);
+			op_ptr= uiItemFullO(row, "WM_OT_operator_preset_add", "", ICON_ZOOMIN, op_ptr.data, WM_OP_INVOKE_DEFAULT, 0);
+
+			WM_operator_properties_create(&op_ptr, "WM_OT_operator_preset_add");
+			RNA_string_set(&op_ptr, "operator", op->type->idname);
+			RNA_boolean_set(&op_ptr, "remove_active", 1);
+			op_ptr= uiItemFullO(row, "WM_OT_operator_preset_add", "", ICON_ZOOMOUT, op_ptr.data, WM_OP_INVOKE_DEFAULT, 0);
+		}
+
 		/* main draw call */
 		empty= uiDefAutoButsRNA(layout, &ptr, check_prop, label_align) == 0;
 

source/blender/makesrna/intern/rna_wm.c

@@ -265,6 +265,7 @@ EnumPropertyItem operator_flag_items[] = {
 		{OPTYPE_BLOCKING, "BLOCKING", 0, "Finished", ""},
 		{OPTYPE_MACRO, "MACRO", 0, "Macro", ""},
 		{OPTYPE_GRAB_POINTER, "GRAB_POINTER", 0, "Grab Pointer", ""},
+		{OPTYPE_PRESET, "PRESET", 0, "Preset", ""},
 		{0, NULL, 0, NULL, NULL}};
 
 EnumPropertyItem operator_return_items[] = {

source/blender/windowmanager/WM_types.h

@@ -55,6 +55,7 @@ struct ImBuf;
 #define OPTYPE_BLOCKING		4	/* let blender grab all input from the WM (X11) */
 #define OPTYPE_MACRO		8
 #define OPTYPE_GRAB_POINTER	16	/* */
+#define OPTYPE_PRESET		32	/* show preset menu */
 
 /* context to call operator in for WM_operator_name_call */
 /* rna_ui.c contains EnumPropertyItem's of these, keep in sync */