Keymaps: replace select / action mouse system

For Blender builtin configurations the option to choose the select mouse remains
and is now also in the splash screen. It works by changing the keymap dynamically
in the script, rather than using special events.

The system of automatic switching of events was not flexible enough to deal with
side effects that require further keymap changes, so it is now under more manual
control in the script.

This breaks compatibility for some scripts and exported key configurations.
These can be fixed by replacing SELECTMOUSE, ACTIONMOUSE, EVT_TWEAK_S and
EVT_TWEAK_A with appropriate LEFTMOUSE, RIGHTMOUSE, EVT_TWEAK_L and
EVT_TWEAK_R events.

Other than that, there should be no functional changes.

1 files changed, 7 insertions, 2 deletions

diff --git a/source/blender/makesdna/DNA_windowmanager_types.h b/source/blender/makesdna/DNA_windowmanager_types.h
index e51933f5a22..26ab24d8f9d 100644
--- a/source/blender/makesdna/DNA_windowmanager_types.h
+++ b/source/blender/makesdna/DNA_windowmanager_types.h
@@ -355,13 +355,18 @@ typedef struct wmKeyConfig {
 	char basename[64];  /* idname of configuration this is derives from, "" if none */
 
 	ListBase keymaps;
-	int actkeymap, flag;
+	int actkeymap;
+	short flag;
+
+	/* Supports select mouse switching? */
+	char has_select_mouse;  /* may remove in favor of custom properties. */
+	char _pad0;
 } wmKeyConfig;
 
 /* wmKeyConfig.flag */
 enum {
 	KEYCONF_USER          = (1 << 1),  /* And what about (1 << 0)? */
-	KEYCONF_INIT_DEFAULT  = (1 << 2),
+	KEYCONF_INIT_DEFAULT  = (1 << 2),  /* Has default keymap been initialized? */
 };
 
 /* this one is the operator itself, stored in files for macros etc */