* xterm.c (x_draw_relief_rect): Clear corner pixels.

2 files changed, 14 insertions, 3 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 151e0daa29d..3b3f20fb737 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,7 @@
+2010-10-09  Chong Yidong  <cyd@stupidchicken.com>
+
+        * xterm.c (x_draw_relief_rect): Clear corner pixels.
+
 2010-10-08  Michael Albinus  <michael.albinus@gmx.de>
 
         * keyboard.c: Revert last change; it was not intended to be
diff --git a/src/xterm.c b/src/xterm.c
index 8b28b1afa27..d9d908d4396 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -1967,6 +1967,9 @@ x_draw_relief_rect (struct frame *f,
       if (width == 1)
         XDrawLine (dpy, window, gc, left_x, top_y + 1, left_x, bottom_y);
 
+      XClearArea (dpy, window, left_x, top_y, 1, 1, False);
+      XClearArea (dpy, window, left_x, bottom_y, 1, 1, False);
+
       for (i = (width > 1 ? 1 : 0); i < width; ++i)
         XDrawLine (dpy, window, gc,
                    left_x + i, top_y + i, left_x + i, bottom_y - i + 1);
@@ -2006,9 +2009,13 @@ x_draw_relief_rect (struct frame *f,
 
   /* Right.  */
   if (right_p)
-    for (i = 0; i < width; ++i)
-      XDrawLine (dpy, window, gc,
-                 right_x - i, top_y + i + 1, right_x - i, bottom_y - i);
+    {
+      XClearArea (dpy, window, right_x, top_y, 1, 1, False);
+      XClearArea (dpy, window, right_x, bottom_y, 1, 1, False);
+      for (i = 0; i < width; ++i)
+        XDrawLine (dpy, window, gc,
+                   right_x - i, top_y + i + 1, right_x - i, bottom_y - i);
+    }
 
   XSetClipMask (dpy, gc, None);
 }