Menu UI feature common in other widget sets:

 Automatically assign menu keys based on name, alternative to pressing number 0-9 on menus items.

 keys are assigned by first giving each menu item the first character of any word, if that fails any key in the name is used.

- active key is shown underlined.
- only ascii keys are assigned currently.
- can run operators, open menu items.
- currently this only works in cases where number buttons were used (UI_BLOCK_NUMSELECT), but could be enabled for file menu, splash etc by removing this check.

1 files changed, 3 insertions, 2 deletions

diff --git a/source/blender/editors/interface/interface_intern.h b/source/blender/editors/interface/interface_intern.h
index a7c03a6b95d..72f6e72cd5d 100644
--- a/source/blender/editors/interface/interface_intern.h
+++ b/source/blender/editors/interface/interface_intern.h
@@ -237,9 +237,10 @@ struct uiBut {
 	struct IDProperty *opproperties;
 	struct PointerRNA *opptr;
 	short opcontext;
-	
+	unsigned char menu_key; /* 'a'-'z', always lower case */
+
 	/* Draggable data, type is WM_DRAG_... */
-	short dragtype;
+	char dragtype;
 	void *dragpoin;
 	struct ImBuf *imb;
 	float imb_scale;