Fix inset rectangle corners when sides aren't drawn (bug#51251)

* src/nsterm.m (ns_draw_relief): Make the inner rectangle line up with
the outer rectangle's edges where the edges aren't drawn.

diff --git a/src/nsterm.m b/src/nsterm.m
index c6f80f803502668b52e21a657c6b76e36c7e3081..aa29c13eb22bb8f63a6f3f98a42990773a3225b9 100644 (file)
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -3512,7 +3512,12 @@ ns_draw_relief (NSRect outer, int hthickness, int vthickness, char raised_p,
     }
 
   /* Calculate the inner rectangle.  */
-  inner = NSInsetRect (outer, hthickness, vthickness);
+  inner = NSMakeRect (NSMinX (outer) + (left_p ? hthickness : 0),
+                      NSMinY (outer) + (top_p ? vthickness : 0),
+                      NSWidth (outer) - (left_p ? hthickness : 0)
+                                      - (right_p ? hthickness : 0),
+                      NSHeight (outer) - (top_p ? vthickness : 0)
+                                       - (bottom_p ? vthickness : 0));
 
   [(raised_p ? lightCol : darkCol) set];