UV Sculpt: improve tool-system integration

In 2.7x UV sculpt was a kind of sub-mode
(a toggle with it's own key-map & drawing code).

Move this to an operator that uses the tool-system,
this simplifies internal logic, especially brush selection
which now matches sculpt and other paint modes.

- Remove toggle used to enable uv sculpt.
- Expose the brush, which was already used but there was no way to
  select different brushes.
- Make UV sculpt use paint paint tool slots
  (using brushes how all other paint mode currently do).
- Move UV Sculpt keymap to the tools keymap.
- Remove Q to toggle UV sculpt mode,
  S/P/G keys to switch tools.

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/paint_toolslots.c b/source/blender/blenkernel/intern/paint_toolslots.c
index 942d5e758f3..fbf586e3f49 100644
--- a/source/blender/blenkernel/intern/paint_toolslots.c
+++ b/source/blender/blenkernel/intern/paint_toolslots.c
@@ -70,6 +70,7 @@ void BKE_paint_toolslots_init_from_main(struct Main *bmain)
     paint_toolslots_init(bmain, &ts->sculpt->paint);
     paint_toolslots_init(bmain, &ts->vpaint->paint);
     paint_toolslots_init(bmain, &ts->wpaint->paint);
+    paint_toolslots_init(bmain, &ts->uvsculpt->paint);
     paint_toolslots_init(bmain, &ts->gp_paint->paint);
   }
 }