Reduce GTK tool-bar switching delay by avoiding selective show/hide of widgets.

* src/gtkutil.c (xg_get_tool_bar_widgets): Use NULL for a missing
image or label in the container.
(xg_make_tool_item): Replace VERT_ONLY arg with HORIZ, TEXT_IMAGE.
(xg_show_toolbar_item): Function deleted.
(xg_tool_item_stale_p): New function.
(update_frame_tool_bar): Calculate tool-bar style once per call.
Instead of hiding text labels, omit them.  Don't use
xg_show_toolbar_item; create new GtkToolItems from scratch if
necessary, instead of trying to re-use them.  This avoids an
annoying animation when changing tool-bars.

1 files changed, 13 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index e0201b2ab1a..d03b16a7092 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,16 @@
+2011-01-01  Chong Yidong  <cyd@stupidchicken.com>
+
+        * gtkutil.c (xg_get_tool_bar_widgets): Use NULL for a missing
+        image or label in the container.
+        (xg_make_tool_item): Replace VERT_ONLY arg with HORIZ, TEXT_IMAGE.
+        (xg_show_toolbar_item): Function deleted.
+        (xg_tool_item_stale_p): New function.
+        (update_frame_tool_bar): Calculate tool-bar style once per call.
+        Instead of hiding text labels, omit them.  Don't use
+        xg_show_toolbar_item; create new GtkToolItems from scratch if
+        necessary, instead of trying to re-use them.  This avoids an
+        annoying animation when changing tool-bars.
+
 2010-12-31  Jan Djärv  <jan.h.d@swipnet.se>
 
         * nsfns.m (ns_set_name_as_filename): Always use buffer name for