master 1e16fc2 05/35: Prefer XMoveResizeWindow to XMoveWindow for resizing xwidgets

[Lars Ingebrigtsen]

branch: master
commit 1e16fc26342213e4aabaa1a491a23ccea5894bf0
Author: Po Lu <luangruo@yahoo.com>
Commit: Lars Ingebrigtsen <larsi@gnus.org>

    Prefer XMoveResizeWindow to XMoveWindow for resizing xwidgets
    
    * src/xwidget.c (x_draw_xwidget_glyph_string): Prefer
    XMoveResizeWindow to avoid extra expose events.
---
 src/xwidget.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/xwidget.c b/src/xwidget.c
index b25f95c..d4196bc 100644
--- a/src/xwidget.c
+++ b/src/xwidget.c
@@ -868,7 +868,11 @@ x_draw_xwidget_glyph_string (struct glyph_string *s)
   if (moved)
     {
 #ifdef USE_GTK
-      XMoveWindow (xv->dpy, xv->wdesc, x + clip_left, y + clip_top);
+      XMoveResizeWindow (xv->dpy, xv->wdesc, x + clip_left, y + clip_top,
+                        clip_right - clip_left, clip_bottom - clip_top);
+      XFlush (xv->dpy);
+      cairo_xlib_surface_set_size (xv->cr_surface, clip_right - clip_left,
+                                  clip_bottom - clip_top);
 #elif defined NS_IMPL_COCOA
       nsxwidget_move_view (xv, x + clip_left, y + clip_top);
 #endif
@@ -884,7 +888,7 @@ x_draw_xwidget_glyph_string (struct glyph_string *s)
       || xv->clip_top != clip_top || xv->clip_left != clip_left)
     {
 #ifdef USE_GTK
-      if (!wdesc_was_none)
+      if (!wdesc_was_none && !moved)
        {
          XResizeWindow (xv->dpy, xv->wdesc, clip_right - clip_left,
                         clip_bottom - clip_top);