Use Gtk+ tooltips by default for Gtk+ Emacs.

* lisp/cus-start.el (x-gtk-use-system-tooltips): New variable.

* src/gtkutil.c (hierarchy_ch_cb, qttip_cb, xg_prepare_tooltip)
(xg_show_tooltip, xg_hide_tooltip, xg_free_frame_widgets): New
functions.
(xg_create_frame_widgets): Set ttip_* to 0.  Set a dummy tooltip
text so qttip_cb is called.  Connect query-tooltip to qttip_cb.
Remove code that is commented out.

* src/gtkutil.h (xg_free_frame_widgets, xg_prepare_tooltip)
(xg_show_tooltip, xg_hide_tooltip): Declare.

* src/xfns.c (x_gtk_use_system_tooltips): New variable.
(Fx_show_tip): If USE_GTK and x_gtk_use_system_tooltips, call
new gtkutil tooltip functions to show the tooltip.
(Fx_hide_tip): Call xg_hide_tooltip.
(syms_of_xfns): Defvar x-gtk-use-system-tooltips.

* src/xterm.c (x_clear_frame): Check FRAME_GTK_WIDGET (f) before
calling gtk_widget_queue_draw.
(x_free_frame_resources): Call xg_free_frame_widgets.

* src/xterm.h (struct x_output): Add ttip_widget, ttip_window and
ttip_lbl.

2 files changed, 5 insertions, 0 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index e6d67c13934..5509b1598a4 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,7 @@
+2010-08-01  Jan Djärv  <jan.h.d@swipnet.se>
+
+        * cus-start.el (x-gtk-use-system-tooltips): New variable.
+
 2010-08-01  Chong Yidong  <cyd@stupidchicken.com>
 
         * emacs-lisp/package.el (package--list-packages): Fix column
diff --git a/lisp/cus-start.el b/lisp/cus-start.el
index 4778cf611e5..1e8898290fb 100644
--- a/lisp/cus-start.el
+++ b/lisp/cus-start.el
@@ -358,6 +358,7 @@ since it could result in memory overflow and make Emacs crash."
              (x-gtk-show-hidden-files menu boolean "22.1")
              (x-gtk-file-dialog-help-text menu boolean "22.1")
              (x-gtk-whole-detached-tool-bar x boolean "22.1")
+             (x-gtk-use-system-tooltips tooltip boolean "23.3")
              ;; xterm.c
              (x-use-underline-position-properties display boolean "22.1")
              (x-underline-at-descent-line display boolean "22.1")