Cleanup: Rename ARegion variables from ar to region

The old convention was easy to confuse with ScrArea.
Part of https://developer.blender.org/T74432.

This is mostly a batch rename with some manual fixing. Only single word
variable names are changed, no prefixed/suffixed names.

Brecht van Lommel and Campbell Barton both gave me a green light for
this convention change.

Also ran clan clang format on affected files.

1 files changed, 12 insertions, 12 deletions

diff --git a/source/blender/editors/mask/mask_select.c b/source/blender/editors/mask/mask_select.c
index 9e1aaa5e6f4..15b3ab047ee 100644
--- a/source/blender/editors/mask/mask_select.c
+++ b/source/blender/editors/mask/mask_select.c
@@ -387,11 +387,11 @@ static int select_exec(bContext *C, wmOperator *op)
 static int select_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 {
   ScrArea *sa = CTX_wm_area(C);
-  ARegion *ar = CTX_wm_region(C);
+  ARegion *region = CTX_wm_region(C);
 
   float co[2];
 
-  ED_mask_mouse_pos(sa, ar, event->mval, co);
+  ED_mask_mouse_pos(sa, region, event->mval, co);
 
   RNA_float_set_array(op->ptr, "location", co);
 
@@ -437,7 +437,7 @@ void MASK_OT_select(wmOperatorType *ot)
 static int box_select_exec(bContext *C, wmOperator *op)
 {
   ScrArea *sa = CTX_wm_area(C);
-  ARegion *ar = CTX_wm_region(C);
+  ARegion *region = CTX_wm_region(C);
 
   Mask *mask = CTX_data_edit_mask(C);
 
@@ -455,8 +455,8 @@ static int box_select_exec(bContext *C, wmOperator *op)
   /* get rectangle from operator */
   WM_operator_properties_border_to_rcti(op, &rect);
 
-  ED_mask_point_pos(sa, ar, rect.xmin, rect.ymin, &rectf.xmin, &rectf.ymin);
-  ED_mask_point_pos(sa, ar, rect.xmax, rect.ymax, &rectf.xmax, &rectf.ymax);
+  ED_mask_point_pos(sa, region, rect.xmin, rect.ymin, &rectf.xmin, &rectf.ymin);
+  ED_mask_point_pos(sa, region, rect.xmax, rect.ymax, &rectf.xmax, &rectf.ymax);
 
   /* do actual selection */
   for (MaskLayer *mask_layer = mask->masklayers.first; mask_layer; mask_layer = mask_layer->next) {
@@ -527,7 +527,7 @@ static bool do_lasso_select_mask(bContext *C,
                                  const eSelectOp sel_op)
 {
   ScrArea *sa = CTX_wm_area(C);
-  ARegion *ar = CTX_wm_region(C);
+  ARegion *region = CTX_wm_region(C);
 
   Mask *mask = CTX_data_edit_mask(C);
 
@@ -567,7 +567,7 @@ static bool do_lasso_select_mask(bContext *C,
 
         /* point in screen coords */
         ED_mask_point_pos__reverse(sa,
-                                   ar,
+                                   region,
                                    point_deform->bezt.vec[1][0],
                                    point_deform->bezt.vec[1][1],
                                    &screen_co[0],
@@ -653,7 +653,7 @@ static int mask_spline_point_inside_ellipse(BezTriple *bezt,
 static int circle_select_exec(bContext *C, wmOperator *op)
 {
   ScrArea *sa = CTX_wm_area(C);
-  ARegion *ar = CTX_wm_region(C);
+  ARegion *region = CTX_wm_region(C);
 
   Mask *mask = CTX_data_edit_mask(C);
   int i;
@@ -669,13 +669,13 @@ static int circle_select_exec(bContext *C, wmOperator *op)
 
   /* compute ellipse and position in unified coordinates */
   ED_mask_get_size(sa, &width, &height);
-  ED_mask_zoom(sa, ar, &zoomx, &zoomy);
+  ED_mask_zoom(sa, region, &zoomx, &zoomy);
   width = height = max_ii(width, height);
 
   ellipse[0] = width * zoomx / radius;
   ellipse[1] = height * zoomy / radius;
 
-  ED_mask_point_pos(sa, ar, x, y, &offset[0], &offset[1]);
+  ED_mask_point_pos(sa, region, x, y, &offset[0], &offset[1]);
 
   const eSelectOp sel_op = ED_select_op_modal(RNA_enum_get(op->ptr, "mode"),
                                               WM_gesture_is_modal_first(op->customdata));
@@ -750,7 +750,7 @@ void MASK_OT_select_circle(wmOperatorType *ot)
 static int mask_select_linked_pick_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 {
   ScrArea *sa = CTX_wm_area(C);
-  ARegion *ar = CTX_wm_region(C);
+  ARegion *region = CTX_wm_region(C);
 
   Mask *mask = CTX_data_edit_mask(C);
   MaskLayer *mask_layer;
@@ -761,7 +761,7 @@ static int mask_select_linked_pick_invoke(bContext *C, wmOperator *op, const wmE
   const float threshold = 19;
   bool changed = false;
 
-  ED_mask_mouse_pos(sa, ar, event->mval, co);
+  ED_mask_mouse_pos(sa, region, event->mval, co);
 
   point = ED_mask_point_find_nearest(C, mask, co, threshold, &mask_layer, &spline, NULL, NULL);