Add printer_compare() function for comparing printers according
to their names and locations. It is possible to search by multiple
keys separated by space or tabulator using logical conjunction.

Based on patch by William Hua.

https://bugzilla.gnome.org/show_bug.cgi?id=692931

https://bugzilla.gnome.org/show_bug.cgi?id=704456

Use gtk_dialog_add_button() which adds the button to
the message dialog correctly and uses gtk_widget_show() on it.

This code is ugly but it seems to do the work

When using header bars, make the default button in
GtkDialog use the suggested-action style.

Signed-off-by: Yosef Or Boczko <yoseforb@src.gnome.org>

Signed-off-by: Yosef Or Boczko <yoseforb@src.gnome.org>

This reverts commit 6fa703b5.

This did not work after all - we're trying to load the theme
css by its name, and the alias makes that not work.

The previous commit was misapplied.

https://bugzilla.gnome.org/show_bug.cgi?id=665928

https://bugzilla.gnome.org/show_bug.cgi?id=634793

Fixes: https://bugzilla.gnome.org/show_bug.cgi?id=636594

This removes one instance of gtk_dialog_get_action_area.

There were a few uses of gtk_widget_get_root_window that
need to be removed.

The root window is a fairly X-centric concept, and it
really has no place in the GtkWidget API. Plus, this
is a rarely-used one-line convenience function with
poor documentation.

This function is just a one-line convenience function that
is about to be deprecated.

Put dialogs and utility windows in the same level as normal and
toolbar windows so that Gtk can control their stacking instead of
forcing them, rather unnaturally, to be on top of all other windows,
even other application windows, even when another application has
focus.

Based on a patch by Garrett Regier in bug 699224.

Signed-off-by: Garrett Regier <garrett@yorba.org>

https://bugzilla.gnome.org/show_bug.cgi?id=699224

Instead of setting "use-header-bar" from gtk_about_dialog_new(),
override its default value by inspecting the properties at constructor()
time. This makes it work from bindings as well, since they don't use the
convenience C constructor.

https://bugzilla.gnome.org/show_bug.cgi?id=722574

GtkWindow has 4 (!) APIs for setting window icons, and we
have to try them all in the right order to find the right
icon. This commit makes it so, and keeps the icon list
manipulation inside gtkwindow.c by adding a private API
for getting a single icon at the right size.

https://bugzilla.gnome.org/show_bug.cgi?id=722515

And make gtk-default.css an alias to it.

This is needed to show the gtk3-demo icon and is needed for the "Multiple
Views" demo to work.  Hmm, why couldn't I do a for loop for a batch in a
property sheet ? :|

-"Install" the newly-added public gtkpopover.h
-Make the gtk3-demo projects up-to-date