Outliner: Move mode toggling to left column

Add a column of icons in the left gutter of the outliner for controlling
the interaction modes of objects. When an object is in a mode other than
object mode, the mode icon will draw to the left of that object. Any
other objects that are valid to be added or swapped into the mode are
drawn with a dot to the left of the object.

Clicking the dot to the left of an object will swap that object with the
current active object in the interaction mode. For edit and pose modes,
ctrl clicking the dot will add that object to the current mode.

Clicking the mode icon next to the active object removes it and all
other objects from the current mode.

The behavior is nearly identical to the previous edit/pose mode toggling
by selecting the mesh and armature datablocks, with additional support
for all interaction modes.

Currently two undo steps are pushed to prevent an assert.

Part of T77408

Manifest Task: https://developer.blender.org/T68498

Differential Revision: https://developer.blender.org/D8641

1 files changed, 6 insertions, 1 deletions

diff --git a/source/blender/editors/space_outliner/outliner_intern.h b/source/blender/editors/space_outliner/outliner_intern.h
index 7e7fdf4bab2..e02e6118152 100644
--- a/source/blender/editors/space_outliner/outliner_intern.h
+++ b/source/blender/editors/space_outliner/outliner_intern.h
@@ -222,7 +222,6 @@ typedef enum TreeItemSelectAction {
   OL_ITEM_ACTIVATE = (1 << 2),    /* Activate the item */
   OL_ITEM_EXTEND = (1 << 3),      /* Extend the current selection */
   OL_ITEM_RECURSIVE = (1 << 4),   /* Select recursively */
-  OL_ITEM_TOGGLE_MODE = (1 << 5)  /* Temporary */
 } TreeItemSelectAction;
 
 /* outliner_tree.c ----------------------------------------------- */
@@ -289,6 +288,12 @@ void outliner_object_mode_toggle(struct bContext *C,
 
 bool outliner_item_is_co_over_name_icons(const TreeElement *te, float view_co_x);
 bool outliner_item_is_co_within_close_toggle(const TreeElement *te, float view_co_x);
+bool outliner_is_co_within_mode_column(SpaceOutliner *space_outliner, const float view_mval[2]);
+
+void outliner_item_mode_toggle(struct bContext *C,
+                               TreeViewContext *tvc,
+                               TreeElement *te,
+                               const bool do_extend);
 
 /* outliner_edit.c ---------------------------------------------- */
 typedef void (*outliner_operation_fn)(struct bContext *C,