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, 4 insertions, 4 deletions

diff --git a/source/blender/editors/armature/pose_slide.c b/source/blender/editors/armature/pose_slide.c
index 4c64f9c7248..8463f0ef827 100644
--- a/source/blender/editors/armature/pose_slide.c
+++ b/source/blender/editors/armature/pose_slide.c
@@ -88,7 +88,7 @@ typedef struct tPoseSlideOp {
   /** area that we're operating in (needed for modal()) */
   ScrArea *sa;
   /** region that we're operating in (needed for modal()) */
-  ARegion *ar;
+  ARegion *region;
   /** len of the PoseSlideObject array. */
   uint objects_len;
 
@@ -197,8 +197,8 @@ static int pose_slide_init(bContext *C, wmOperator *op, ePoseSlide_Modes mode)
 
   /* get info from context */
   pso->scene = CTX_data_scene(C);
-  pso->sa = CTX_wm_area(C);   /* only really needed when doing modal() */
-  pso->ar = CTX_wm_region(C); /* only really needed when doing modal() */
+  pso->sa = CTX_wm_area(C);       /* only really needed when doing modal() */
+  pso->region = CTX_wm_region(C); /* only really needed when doing modal() */
 
   pso->cframe = pso->scene->r.cfra;
   pso->mode = mode;
@@ -1004,7 +1004,7 @@ static void pose_slide_mouse_update_percentage(tPoseSlideOp *pso,
                                                wmOperator *op,
                                                const wmEvent *event)
 {
-  pso->percentage = (event->x - pso->ar->winrct.xmin) / ((float)pso->ar->winx);
+  pso->percentage = (event->x - pso->region->winrct.xmin) / ((float)pso->region->winx);
   RNA_float_set(op->ptr, "percentage", pso->percentage);
 }