Fix T62875: Tooltips behave erratically with view gizmos

Improvements to behavior for gizmo tool-tips.

- 2D gizmos no longer cancel tool-tips on cursor motion
  (matching the behavior of UI widgets).

- 3D gizmos still close on motion since 3D gizmos may have a large
  on-screen area which would cause them to stay visible even after the
  cursor has been moved a large distance. The motion threshold is used
  so they don't close on unintended cursor motion.

- Changing highlighted gizmo now cancels the tool-tip & resets the timer.

1 files changed, 2 insertions, 0 deletions

diff --git a/source/blender/windowmanager/WM_types.h b/source/blender/windowmanager/WM_types.h
index c725b9f51c9..51c75430271 100644
--- a/source/blender/windowmanager/WM_types.h
+++ b/source/blender/windowmanager/WM_types.h
@@ -787,6 +787,8 @@ typedef struct wmTooltipState {
                           bool *r_exit_on_event);
   /** Exit on any event, not needed for buttons since their highlight state is used. */
   bool exit_on_event;
+  /** Cursor location at the point of tooltip creation. */
+  int event_xy[2];
   /** Pass, use when we want multiple tips, count down to zero. */
   int pass;
 } wmTooltipState;