UI: Gizmo Tooltip Positioning

Position Gizmo tooltips below their bounds so they do not obscure the content.

Differential Revision: https://developer.blender.org/D9793

Reviewed by Julian Eisel

2 files changed, 6 insertions, 0 deletions

diff --git a/source/blender/windowmanager/gizmo/WM_gizmo_types.h b/source/blender/windowmanager/gizmo/WM_gizmo_types.h
index 8f84c02be12..0588fd2b2ce 100644
--- a/source/blender/windowmanager/gizmo/WM_gizmo_types.h
+++ b/source/blender/windowmanager/gizmo/WM_gizmo_types.h
@@ -371,6 +371,9 @@ typedef struct wmGizmoType {
    */
   wmGizmoFnMatrixBasisGet matrix_basis_get;
 
+  /** Returns screen-space bounding box. Needed for nice tooltip placement. */
+  wmGizmoFnScreenBoundsGet screen_bounds_get;
+
   /** Activate a gizmo state when the user clicks on it. */
   wmGizmoFnInvoke invoke;
 
diff --git a/source/blender/windowmanager/gizmo/wm_gizmo_fn.h b/source/blender/windowmanager/gizmo/wm_gizmo_fn.h
index 418e848e35b..4eea7cc6dcf 100644
--- a/source/blender/windowmanager/gizmo/wm_gizmo_fn.h
+++ b/source/blender/windowmanager/gizmo/wm_gizmo_fn.h
@@ -59,6 +59,9 @@ typedef int (*wmGizmoFnModal)(struct bContext *,
                               eWM_GizmoFlagTweak);
 typedef void (*wmGizmoFnPropertyUpdate)(struct wmGizmo *, struct wmGizmoProperty *);
 typedef void (*wmGizmoFnMatrixBasisGet)(const struct wmGizmo *, float[4][4]);
+typedef void (*wmGizmoFnScreenBoundsGet)(struct bContext *,
+                                         struct wmGizmo *,
+                                         rcti *r_bounding_box);
 typedef int (*wmGizmoFnInvoke)(struct bContext *, struct wmGizmo *, const struct wmEvent *);
 typedef void (*wmGizmoFnExit)(struct bContext *, struct wmGizmo *, const bool);
 typedef int (*wmGizmoFnCursorGet)(struct wmGizmo *);