Nodes: sort builtin compositor/shader/texture nodes alphabetically in menus

Reviewed By: lukastoenne, dingto, Severin, carter2422

Differential Revision: https://developer.blender.org/D1957

release/scripts/startup/nodeitems_builtins.py

@@ -24,13 +24,25 @@ from nodeitems_utils import NodeCategory, NodeItem, NodeItemCustom
 
 # Subclasses for standard node types
 
+def alphabetical(items):
+	# for builtin nodes the convention is to sort by name
+    if isinstance(items, list):
+        return sorted(items, key=lambda item: item.label().lower)
+    return items
+
 class CompositorNodeCategory(NodeCategory):
+    def __init__(self, identifier, name, description="", items=None):
+        super().__init__(identifier, name, description, alphabetical(items))
+
     @classmethod
     def poll(cls, context):
         return (context.space_data.tree_type == 'CompositorNodeTree')
 
 
 class ShaderNewNodeCategory(NodeCategory):
+    def __init__(self, identifier, name, description="", items=None):
+        super().__init__(identifier, name, description, alphabetical(items))
+
     @classmethod
     def poll(cls, context):
         return (context.space_data.tree_type == 'ShaderNodeTree' and
@@ -38,6 +50,9 @@ class ShaderNewNodeCategory(NodeCategory):
 
 
 class ShaderOldNodeCategory(NodeCategory):
+    def __init__(self, identifier, name, description="", items=None):
+        super().__init__(identifier, name, description, alphabetical(items))
+
     @classmethod
     def poll(cls, context):
         return (context.space_data.tree_type == 'ShaderNodeTree' and
@@ -45,6 +60,9 @@ class ShaderOldNodeCategory(NodeCategory):
 
 
 class TextureNodeCategory(NodeCategory):
+    def __init__(self, identifier, name, description="", items=None):
+        super().__init__(identifier, name, description, alphabetical(items))
+
     @classmethod
     def poll(cls, context):
         return context.space_data.tree_type == 'TextureNodeTree'