Refactor: Use coordinate in API for track selection

Currently no functional changes. Prepares for a change which will
allow to more consistently redo the track selection operator.

3 files changed, 9 insertions, 12 deletions

diff --git a/source/blender/editors/space_clip/clip_intern.h b/source/blender/editors/space_clip/clip_intern.h
index 8e1df133189..ec3d098e68f 100644
--- a/source/blender/editors/space_clip/clip_intern.h
+++ b/source/blender/editors/space_clip/clip_intern.h
@@ -190,7 +190,7 @@ void clip_draw_sfra_efra(struct View2D *v2d, struct Scene *scene);
 /* Find track which can be slid in a proximity of the given event.
  * Uses the same rules w.r.t distance tolerances for track sliding and selection operators. */
 struct MovieTrackingTrack *tracking_find_slidable_track_in_proximity(struct bContext *C,
-                                                                     const struct wmEvent *event);
+                                                                     const float co[2]);
 
 void CLIP_OT_add_marker(struct wmOperatorType *ot);
 void CLIP_OT_add_marker_at_click(struct wmOperatorType *ot);
diff --git a/source/blender/editors/space_clip/tracking_ops.c b/source/blender/editors/space_clip/tracking_ops.c
index 8cddd0ab23b..ca224b04da5 100644
--- a/source/blender/editors/space_clip/tracking_ops.c
+++ b/source/blender/editors/space_clip/tracking_ops.c
@@ -528,11 +528,10 @@ static bool slide_check_corners(float (*corners)[2])
 }
 
 static MovieTrackingTrack *tracking_marker_check_slide(
-    bContext *C, const wmEvent *event, int *r_area, eSlideAction *r_action, int *r_corner)
+    bContext *C, const float co[2], int *r_area, eSlideAction *r_action, int *r_corner)
 {
   const float distance_clip_squared = 12.0f * 12.0f;
   SpaceClip *sc = CTX_wm_space_clip(C);
-  ARegion *region = CTX_wm_region(C);
   MovieClip *clip = ED_space_clip_get_clip(sc);
   ListBase *tracksbase = BKE_tracking_get_active_tracks(&clip->tracking);
   const int framenr = ED_space_clip_get_clip_frame_number(sc);
@@ -549,9 +548,6 @@ static MovieTrackingTrack *tracking_marker_check_slide(
     return NULL;
   }
 
-  float co[2];
-  ED_clip_mouse_pos(sc, region, event->mval, co);
-
   LISTBASE_FOREACH (MovieTrackingTrack *, track, tracksbase) {
     if (!TRACK_VIEW_SELECTED(sc, track) || (track->flag & TRACK_LOCKED)) {
       continue;
@@ -640,9 +636,9 @@ static MovieTrackingTrack *tracking_marker_check_slide(
 }
 
 struct MovieTrackingTrack *tracking_find_slidable_track_in_proximity(struct bContext *C,
-                                                                     const struct wmEvent *event)
+                                                                     const float co[2])
 {
-  return tracking_marker_check_slide(C, event, NULL, NULL, NULL);
+  return tracking_marker_check_slide(C, co, NULL, NULL, NULL);
 }
 
 static void *slide_marker_customdata(bContext *C, const wmEvent *event)
@@ -666,7 +662,7 @@ static void *slide_marker_customdata(bContext *C, const wmEvent *event)
 
   ED_clip_mouse_pos(sc, region, event->mval, co);
 
-  track = tracking_marker_check_slide(C, event, &area, &action, &corner);
+  track = tracking_marker_check_slide(C, co, &area, &action, &corner);
   if (track != NULL) {
     MovieTrackingMarker *marker = BKE_tracking_marker_get(track, framenr);
     customdata = create_slide_marker_data(
diff --git a/source/blender/editors/space_clip/tracking_select.c b/source/blender/editors/space_clip/tracking_select.c
index 1f6ec7de978..db985ae67e5 100644
--- a/source/blender/editors/space_clip/tracking_select.c
+++ b/source/blender/editors/space_clip/tracking_select.c
@@ -402,15 +402,17 @@ static int select_invoke(bContext *C, wmOperator *op, const wmEvent *event)
   SpaceClip *sc = CTX_wm_space_clip(C);
   ARegion *region = CTX_wm_region(C);
 
-  float co[2];
   const bool extend = RNA_boolean_get(op->ptr, "extend");
 
+  float co[2];
+  ED_clip_mouse_pos(sc, region, event->mval, co);
+
   /* Special code which allows to slide a marker which belongs to currently selected but not yet
    * active track. If such track is found activate it and return pass-though so that marker slide
    * operator can be used immediately after.
    * This logic makes it convenient to slide markers when left mouse selection is used. */
   if (!extend) {
-    MovieTrackingTrack *track = tracking_find_slidable_track_in_proximity(C, event);
+    MovieTrackingTrack *track = tracking_find_slidable_track_in_proximity(C, co);
     if (track != NULL) {
       MovieClip *clip = ED_space_clip_get_clip(sc);
 
@@ -423,7 +425,6 @@ static int select_invoke(bContext *C, wmOperator *op, const wmEvent *event)
     }
   }
 
-  ED_clip_mouse_pos(sc, region, event->mval, co);
   RNA_float_set_array(op->ptr, "location", co);
 
   return select_exec(C, op);