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/interface/interface_eyedropper_color.c b/source/blender/editors/interface/interface_eyedropper_color.c
index 2b5cf2ed6b9..0dabe453ce4 100644
--- a/source/blender/editors/interface/interface_eyedropper_color.c
+++ b/source/blender/editors/interface/interface_eyedropper_color.c
@@ -143,34 +143,34 @@ void eyedropper_color_sample_fl(bContext *C, int mx, int my, float r_col[3])
 
   if (sa) {
     if (sa->spacetype == SPACE_IMAGE) {
-      ARegion *ar = BKE_area_find_region_xy(sa, RGN_TYPE_WINDOW, mx, my);
-      if (ar) {
+      ARegion *region = BKE_area_find_region_xy(sa, RGN_TYPE_WINDOW, mx, my);
+      if (region) {
         SpaceImage *sima = sa->spacedata.first;
-        int mval[2] = {mx - ar->winrct.xmin, my - ar->winrct.ymin};
+        int mval[2] = {mx - region->winrct.xmin, my - region->winrct.ymin};
 
-        if (ED_space_image_color_sample(sima, ar, mval, r_col)) {
+        if (ED_space_image_color_sample(sima, region, mval, r_col)) {
           return;
         }
       }
     }
     else if (sa->spacetype == SPACE_NODE) {
-      ARegion *ar = BKE_area_find_region_xy(sa, RGN_TYPE_WINDOW, mx, my);
-      if (ar) {
+      ARegion *region = BKE_area_find_region_xy(sa, RGN_TYPE_WINDOW, mx, my);
+      if (region) {
         SpaceNode *snode = sa->spacedata.first;
-        int mval[2] = {mx - ar->winrct.xmin, my - ar->winrct.ymin};
+        int mval[2] = {mx - region->winrct.xmin, my - region->winrct.ymin};
 
-        if (ED_space_node_color_sample(bmain, snode, ar, mval, r_col)) {
+        if (ED_space_node_color_sample(bmain, snode, region, mval, r_col)) {
           return;
         }
       }
     }
     else if (sa->spacetype == SPACE_CLIP) {
-      ARegion *ar = BKE_area_find_region_xy(sa, RGN_TYPE_WINDOW, mx, my);
-      if (ar) {
+      ARegion *region = BKE_area_find_region_xy(sa, RGN_TYPE_WINDOW, mx, my);
+      if (region) {
         SpaceClip *sc = sa->spacedata.first;
-        int mval[2] = {mx - ar->winrct.xmin, my - ar->winrct.ymin};
+        int mval[2] = {mx - region->winrct.xmin, my - region->winrct.ymin};
 
-        if (ED_space_clip_color_sample(sc, ar, mval, r_col)) {
+        if (ED_space_clip_color_sample(sc, region, mval, r_col)) {
           return;
         }
       }