NLA: Shift-Tab toggles tweakmode AND makes that track solo

To help make it more convenient to edit stashed actions, Shift-Tab
(i.e. holding down the Shift key, which "tabbing" into tweakmode as
usual to edit the action referenced by the active NLA strip) now flags
the NLA Track that the strip occupies as being "solo" too.

This allows you to use the NLA to select a stashed action, then Shift-Tab
to start editing it without any other actions in the NLA stack interfering.
Like the "Next/Previous Layer" tools in the Action Editor, this is designed
to help with checking on stashed actions.

1 files changed, 11 insertions, 0 deletions

diff --git a/source/blender/editors/space_nla/nla_ops.c b/source/blender/editors/space_nla/nla_ops.c
index 43bc4b9df0f..98da10470f8 100644
--- a/source/blender/editors/space_nla/nla_ops.c
+++ b/source/blender/editors/space_nla/nla_ops.c
@@ -306,6 +306,7 @@ static void nla_keymap_main(wmKeyConfig *keyconf, wmKeyMap *keymap)
 void nla_keymap(wmKeyConfig *keyconf)
 {
 	wmKeyMap *keymap;
+	wmKeyMapItem *kmi;
 	
 	/* keymap for all regions ------------------------------------------- */
 	keymap = WM_keymap_find(keyconf, "NLA Generic", SPACE_NLA, 0);
@@ -320,6 +321,16 @@ void nla_keymap(wmKeyConfig *keyconf)
 	WM_keymap_add_item(keymap, "NLA_OT_tweakmode_enter", TABKEY, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "NLA_OT_tweakmode_exit", TABKEY, KM_PRESS, 0, 0);
 	
+	/* tweakmode for stashed actions
+	 * - similar to normal tweakmode, except we mark the tracks as being "solo"
+	 *   too so that the action can be edited in isolation
+	 */
+	kmi = WM_keymap_add_item(keymap, "NLA_OT_tweakmode_enter", TABKEY, KM_PRESS, KM_SHIFT, 0);
+	RNA_boolean_set(kmi->ptr, "isolate_action", true);
+	
+	kmi = WM_keymap_add_item(keymap, "NLA_OT_tweakmode_exit", TABKEY, KM_PRESS, KM_SHIFT, 0);
+	RNA_boolean_set(kmi->ptr, "isolate_action", true);
+	
 	/* find (i.e. a shortcut for setting the name filter) */
 	WM_keymap_add_item(keymap, "ANIM_OT_channels_find", FKEY, KM_PRESS, KM_CTRL, 0);