Tool System: experimental fallback tool support

Implement T66304 as an experimental option,
available under the preferences "Experimental" section.

- When enabled most tools in the 3D view have a gizmo.
- Dragging outside the gizmo uses the 'fallback' tool.
- The fallback tool can be changed or disabled in the tool options
  or from a pie menu (Alt-W).

1 files changed, 10 insertions, 1 deletions

diff --git a/source/blender/makesdna/DNA_scene_types.h b/source/blender/makesdna/DNA_scene_types.h
index 54ae38f608c..5336ea381c3 100644
--- a/source/blender/makesdna/DNA_scene_types.h
+++ b/source/blender/makesdna/DNA_scene_types.h
@@ -1509,7 +1509,10 @@ typedef struct ToolSettings {
   /* XXX: these sculpt_paint_* fields are deprecated, use the
    * unified_paint_settings field instead! */
   short sculpt_paint_settings DNA_DEPRECATED;
-  char _pad5[2];
+
+  char workspace_tool_type;
+
+  char _pad5[1];
   int sculpt_paint_unified_size DNA_DEPRECATED;
   float sculpt_paint_unified_unprojected_radius DNA_DEPRECATED;
   float sculpt_paint_unified_alpha DNA_DEPRECATED;
@@ -2042,6 +2045,12 @@ enum {
   SCE_OBJECT_MODE_LOCK = (1 << 0),
 };
 
+/* ToolSettings.workspace_tool_flag */
+enum {
+  SCE_WORKSPACE_TOOL_FALLBACK = 0,
+  SCE_WORKSPACE_TOOL_DEFAULT = 1,
+};
+
 /* ToolSettings.snap_flag */
 #define SCE_SNAP (1 << 0)
 #define SCE_SNAP_ROTATE (1 << 1)