From: Michael Stapelberg <michael@stapelberg.de>
Date: Sun, 10 Jul 2011 18:08:40 +0000 (+0200)
Subject: x: set the contents of a decoration window immediately after changing its size
X-Git-Tag: tree-pr4~50
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=afef42a4acbc6c4808fef6c0ae128f01be0e1271;p=i3%2Fi3

x: set the contents of a decoration window immediately after changing its size

Reduces flickering. A window loses its contents when being resized, so we have
to restore them as fast as possible.
---

diff --git a/src/x.c b/src/x.c
index 061984f6..492442a7 100644
--- a/src/x.c
+++ b/src/x.c
@@ -585,7 +585,14 @@ void x_push_node(Con *con) {
         }
 
         DLOG("setting rect (%d, %d, %d, %d)\n", rect.x, rect.y, rect.width, rect.height);
+        /* flush to ensure that the following commands are sent in a single
+         * buffer and will be processed directly afterwards (the contents of a
+         * window get lost when resizing it, therefore we want to provide it as
+         * fast as possible) */
+        xcb_flush(conn);
         xcb_set_window_rect(conn, con->frame, rect);
+        xcb_copy_area(conn, con->pixmap, con->frame, con->pm_gc, 0, 0, 0, 0, con->rect.width, con->rect.height);
+        xcb_flush(conn);
 
         memcpy(&(state->rect), &rect, sizeof(Rect));
         fake_notify = true;