Thu Nov 29 21:35:56 2001 Kristian Rietveld <kristian@planet.nl>
* gtk/gtkmenu.c (gtk_menu_motion_notify): add checks for
empty menu items to behave like insensitive items (#59456)
* gtk/gtkmenuitem.c (gtk_real_menu_item_activate_item): select
next item if the first item in the menu is a tear off item
(#59456-2, suggestion by Matthias Clasen)
* gtk/gtkmenushell.c (gtk_menu_shell_button_press),
(gtk_menu_shell_button_release), (gtk_menu_shell_entry_notify),
(gtk_menu_shell_leave_notify), (gtk_real_menu_shell_move_current),
(gtk_real_menu_shell_activate_current): add check, so empty
menu items behave like insensitive items (#59456)
* gtk/gtkmenuitem.[ch]: add _gtk_menu_item_is_selectable to make
the checks more readable ...
* gtk/gtkmenushell.c (gtk_menu_shell_button_press),
(gtk_menu_shell_button_release): causes the menu to dropdown if the
caption is clicked again (#64977)
Fri Nov 16 00:16:40 2001 Owen Taylor <otaylor@redhat.com>
* gtk/{gtkmenuitem.[ch],gtkcheckmenuitem.c,gtkimagemenuitem.c,
gtkradiomenuitem.c,gtktearoffmenuitem.c}: Make Menu items
NO_WINDOW widgets.
* gtk/gtk{h,v,}paned.[ch]: Make NO_WINDOW widgets, some
cleanup.
* gtk/gtkstyle.c (gtk_default_draw_handle): Don't assume
we are drawing in a window when drawing the paned handle.
Mon Nov 12 23:06:38 2001 Tim Janik <timj@gtk.org>
* added gtkaccelmap.sgml. other updates.
Mon Nov 12 23:08:37 2001 Tim Janik <timj@gtk.org>
* gtk/maketypes.awk: fix type utils generation on unix.
* gtk/gtkaccelmap.[hc]: new files, implementing a global accelerator
registry.
* gtk/gtkaccelgroup.[hc]: major API/implementation revamp:
removed GTK_ACCEL_SIGNAL_VISIBLE, gtk_accel_group_get_default,
gtk_accel_group_get_entry, gtk_accel_group_(un)lock_entry,
gtk_accel_group_add/remove, gtk_accel_group_handle_add/remove,
gtk_accel_group_create_add/remove, gtk_accel_group_entries_from_object.
introduced ::accel_changed signal for change notification, and
gtk_accel_group_connect/disconnect to connect closures to accel groups.
made gtk_accel_group_attach/detach and gtk_accel_group_activate private
functions.
deprecated gtk_accel_group_ref/unref.
* gtk/gtkaccellabel.[hc]: changes to make accellabels pay attention
to accel group changed notification and basically operate on closures.
removed gtk_accel_label_get_accel_object and
gtk_accel_label_set_accel_object.
introduced gtk_accel_label_set_accel_closure, and for convenience,
gtk_accel_label_set_accel_widget.
* gtk/gtkitemfactory.[hc]: removed accelerator propagation code
which mostly moved into gtkaccelmap.[hc].
removed gtk_item_factory_parse_rc*, gtk_item_factory_dump_*
and gtk_item_factory_print_func.
* gtk/gtkmain.c: call _gtk_accel_map_init().
* gtk/gtkmenuitem.[hc]: introduced gtk_menu_item_set_accel_path(),
that associates an accelerator path with menu items, through which
persistent accelerator settings on menu items are enabled.
* gtk/gtkmenu.[hc]: added gtk_menu_set_accel_path() so accelerator
paths of menu item can be default constructed to allow installation
of accelerators on menu items that don't come with an accelerator
binding by default.
* gtk/gtksettings.c: fix STRING type rc settings by special casing
them appropriately in the parser.
* gtk/gtksignal.[hc]: allow a class function offset of 0 for
gtk_signal_newv().
* gtk/gtkwidget.[hc]: accelerator API revamp.
removed ::accelerator_add/remove signals, gtk_widget_accelerator_signal,
gtk_widget_accelerators_locked, gtk_widget_remove_accelerators and
gtk_widget_(un)lock_accelerators.
accelerators maintained through gtk_widget_add/remove_accelerator()
are not runtime changable now, the correct sequence to setup a
widget for runtime changable accelerators is now:
gtk_accel_map_add_entry(accel_path, key, mods);
_gtk_widget_set_accel_path(widget, accel_path, accel_group);
* gtk/gtkwindow.[hc]: accelerator changes, proxy and coalesce accel
group changes (as well as mnemonic changes) through the new signal
::accels_changed.
Sat Nov 10 12:08:56 2001 Tim Janik <timj@gtk.org>
* gtk/gtksettings.c (_gtk_settings_parse_convert): properly handle
GString->string conversions.
Sun Aug 26 20:00:00 2001 Owen Taylor <otaylor@redhat.com>
* configure.in acinclude.m4: Use autoconf 2.13/2.50 compat
macro.
(patch from ERDI Gergo <cactus@cactus.rulez.org>, #58920)
* gtk/gtkmenuitem.c (gtk_menu_item_set_right_justified): Change
interface to be a standard setter from gtk_menu_item_right_justify.
(gtk_menu_item_get_right_justified): a getter to go with the setter
* gtk/gtkmenuitem.h: Add a deprecated compat macro for
gtk_menu_item_right_justify.
* demos/gtk-demo/menus.c tests/testgtk.c: Switch to
gtk_menu_item_set_right_justified.
Fri Aug 24 22:12:32 2001 Owen Taylor <otaylor@redhat.com>
* gtk/gtkmenuitem.[ch]: Remove unused and useless function
gtk_menu_item_configure(). (#58925)
Sun Jun 24 11:29:35 2001 Owen Taylor <otaylor@redhat.com>
* gdk/x11/gdkimage-x11.c (gdk_image_new): Fix stupid error
introduced last night that was making things decidedly not work.
* gtk/*.[ch]: Patch from Kristian Rietveld adding 80 getters
so that we have getter/setter pairing everywhere it makes
sense. (#55767)
* gtk/gtkradiobutton.[ch] gtk/gtktoolbar.c tests/testgtk.:
Rename gtk_radio_button_group to gtk_radio_button_get_group, add a
deprecated compat macro. (#55516)
* gtk/gtklabel.[ch]: Add functions
gtk_label_set/get_use_underline(), gtk_label_set/get_use_markup(),
gtk_label_set_label(), which mirror the property API for GtkLabel.
Make gtk_label_get_attributes() only reflect the attributes
set by gtk_label_set_attributes.
* gtk/gtknotebook.c (gtk_notebook_set_current_page) gtk/gtkcompat.h: Rename
from gtk_notebook_set_page().
2001-06-05 Havoc Pennington <hp@redhat.com>
* gtk/gtkcolorsel.c: Use new mnemonic convenience functions
Applying patch from Jeff Franks, with function docs added.
* gtk/gtkcheckbutton.c (gtk_check_button_new_with_mnemonic):
remove call to set_mnemonic_widget, change docs a bit.
* gtk/gtkimagemenuitem.c (gtk_image_menu_item_new_with_mnemonic):
new function
* gtk/gtkcheckmenuitem.c (gtk_check_menu_item_new_with_mnemonic):
new function
* gtk/gtkmenuitem.c (gtk_menu_item_new_with_mnemonic): new function
* gtk/gtkradiobutton.c (gtk_radio_button_new_with_mnemonic): new
function
(gtk_radio_button_new_with_mnemonic_from_widget): new function
* gtk/gtkradiomenuitem.c (gtk_radio_menu_item_new_with_mnemonic):
new function
* gtk/gtktogglebutton.c (gtk_toggle_button_new_with_mnemonic): new
function
* gtk/gtklabel.c (gtk_label_new_with_mnemonic): Improve docs on
auto-selection of mnemonic widget.
2001-03-16 Havoc Pennington <hp@redhat.com>
* Applied patch from Nils Barth (bug # 51041) to
replace "gint" with "gboolean" and 0/1 with TRUE/FALSE
in various places.
2001-02-12 Havoc Pennington <hp@pobox.com>
* gdk/gdkpango.c (gdk_pango_get_gc): fix bug where
it always set the foreground, even if we were only using
a stipple.
(gdk_draw_layout_line_with_colors): new function, allow
override colors
(gdk_draw_layout_with_colors): new function, allow override
colors
(gdk_pango_layout_line_get_clip_region): function to get the clip
region for a logical text range
(gdk_pango_layout_get_clip_region): get the clip region for a
logical text range
* gdk/x11/gdkcolor-x11.c: forward declare gdk_colormap_sync(),
(gdk_colormap_new): fix call to gdk_colormap_sync() so it has
the right number of arguments.
* gtk/gtktextbtree.c (gtk_text_btree_node_check_consistency):
enhance the function to check that node data corresponds to a
view still belonging to the tree.
* gtk/gtktreeview.c (gtk_tree_view_changed): we were leaking the
GtkTreePath
(gtk_tree_view_inserted): ditto
(gtk_tree_view_child_toggled): ditto
* gtk/gtktreemodel.c (gtk_tree_path_append_index): use realloc to
simplify this code.
* gtk/gtkcellrenderertext.c (get_layout): fix leak of
a PangoAttrList
* demos/gtk-demo/main.c (load_file): Fix leak of a GString
* gtk/gtkentry.c (gtk_entry_realize): Fix leak of a GdkCursor
* gtk/gtkmenubar.c (gtk_menu_bar_size_request): consider toggle
size in the size request
(gtk_menu_bar_size_allocate): consider toggle size here
* gtk/gtkimagemenuitem.h, gtkimagemenuitem.c: Menu item
that displays a widget in the toggle slot
* gtk/testgtk.c: test GtkImageMenuItem
* gtk/Makefile.am, gtk/gtk.h: Add GtkImageMenuItem
* gtk/gtkmenuitem.h: Use "gint" not "guint16" for toggle size
request and allocation
* gtk/gtkmenu.c (gtk_menu_size_request): use gint not guint16
* gtk/gtkcheckmenuitem.c
(gtk_check_menu_item_toggle_size_request): ditto
2000-11-08 Alexander Larsson <alexl@redhat.com>
* docs/Changes-2.0.txt: Add note about GtkMenuPositionFunc
API changes.
* gtk/gtkmenu.c: Add support for scrolling menus.
Remove gtk_menu_append/prepend/insert, these have been moved to
gtkcompat.h as #defines.
* gtk/gtkcompat.h.in:
Add compatibility #defines for gtk_menu_append/prepend/insert
* gtk/gtkmenu.h: Add data needed for scrolling menus.
GtkMenuPositionFunc gets an extra argument push_in.
gtk_menu_append/prepend/insert removed.
* gtk/gtkmenuitem.c (gtk_menu_item_position_menu): Change menu
positioning behaviour to fit to scrolling menus.
* gtk/gtkmenuitem.c (gtk_menu_item_forall): Don't recurse
into menuitem->submeny. That is wrong, and broke torn
off submenus of torn off menus, since they were unrealized
when the first menu was unrealized.
* gtk/gtkmenushell.[ch]: Virtualize gtk_menu_shell_insert() and
gtk_menu_shell_select_item() since these need to be overridden in
GtkMenu.
* gtk/gtkoptionmenu.c (gtk_opttion_menu_position): Change menu
positioning behaviour to fit to scrolling menus.
(gtk_option_menu_key_press, gtk_option_menu_button_press): Select
the current item so that it is prelighted when the menu pops up.
This is a workaround to the fact that the menu doesn't get the
initial enter event (due to grabs).
* gtk/gtkfilesel.c, gtk/gtkinputdialog.c, gtk/testgtk.c:
s/gtk_menu_append/gtk_menu_shell_append/
* gtk/gtknotebook.c:
s/gtk_menu_insert/gtk_menu_shell_insert/
* gtk/testgtk.c (create_menu, create_menus):
Create the first menu with 50 items so that menu scrolling
can be tested.
Patch from Jonathan Blandford <jrb@redhat.com>
* gtk/gtkmenuitem.[ch] (gtk_menu_item_toggle_size_request): new
system to handle size requests. First, we ask what the size of
the toggle is. Then, when allocating the size, we allocate the
toggle_size first. This way we can have multiple menu-item
classes w/o needing a seperate class for each.
* gtk/gtkmenu.c (gtk_menu_size_request): Actually use the new system.
* gtk/gtkmenu.c (gtk_menu_size_allocate): Use the new system.
* gtk/gtkcheckmenuitem.c
(gtk_check_menu_item_toggle_size_request): New function to handle
the toggle size-request.
Wed Jul 26 12:59:31 2000 Tim Janik <timj@gtk.org>
* *.[hc]: applied patch from Andreas Persenius <ndap@swipnet.se> that
updates the license headers to the GNU Lesser General Public License,
as well as updating the copyright year to 2000.
Sun Feb 13 08:54:45 2000 Tim Janik <timj@gtk.org>
* gdk/gdkcursor.h (struct _GdkCursor): s/refcount/ref_count/.
* gdk/x11/gdkcursor-x11.c (gdk_cursor_new_from_pixmap):
* gdk/x11/gdkcursor-x11.c (_gdk_cursor_destroy):
* gdk/gdkcursor.c (gdk_cursor_ref): insert assertments for the
parameters given and cursor->ref_count. coding style fixups.
* gtk/gtksocket.c (gtk_socket_class_init): parent class is GtkContainer,
not GtkWidget.
* gtk/*.h: applied patch from Mathieu Lacage <lacage@email.enst.fr> to
fix up widget macros and add _GET_CLASS() variant.
* gtk/*.c: some GtkType fixups.
Wed Oct 7 05:15:36 1998 Tim Janik <timj@gtk.org>
* gtk/gtk*.h:
* gdk/gdk.h: removed all occourances of #pragma } and #pragma {
which were in place to fixup emacs' cc-mode indentation.
putting (c-set-offset 'inextern-lang 0) into ~/.emacs is the
proper way to achive this and doesn't produce problems for
stupid pragma-related compiler bugs. ;)
Tue Jul 21 12:42:01 1998 Owen Taylor <otaylor@redhat.com>
* gdk/gdk.h gdk/gdkfont.c: Added gdk_text/string_extents() -
too calculate all the metrics at once of a string, including
things which weren't calculated before.
* gtk/Makefile.am gtk/gtk.h gtk/gtktearoffmenu.[ch]: New
MenuItem type, that when put as the first thing in a
menu, makes the menu tearoff. Currently drawn as a
dashed line.
* gtk/gtkmenuitem.h gtk/gtkcheckmenuitem.c: Added a flag
"hide_on_activate" to the MenuItem class structure to allow
check and radio buttons to be changed with <Space> without
hiding the menu.
* gtk/gtkaccellabel.[ch]: Added new capabilities to set
a underline_group and underline_mods for the label -
accelerators added in the underline group matching
underline_mods will be displayed as an underline character.
This doesn't work - Save As needs to be underlined
as Save _As.
* gtk/gtkitemfactory.c:
- Create a AccelGroup for each MenuShell we create.
- If an '&' appears before a character 'c' in the path,
then make 'c' an accelerator in the menu's accel group,
and if the menuitem is menubar <alt>C an accelerator
in the itemfactory's accel group.
* gtk/gtklabel.[ch]: Add support for a pattern arg -
which is a string. If an '_' appears in this string,
the corresponding position in the label is underlined.
Add gtk_label_parse_uline() convenience function which
takes a string with embedded underlines, sets the
pattern and label, and returns the accelerator keyval.
* gtk/gtkmenu.[ch]: Make menus no longer a toplevel widget.
Instead, they create a GtkWindow and add themselves
to that. (When torn off, another new feature, they
create another GtkWindow to hold the torn off menu)
New function gtk_menu_set_tearoff_state()
* gtk/gtkenums.h gtk/gtkmenushell.[ch] gtk/gtkenums.h:
Added action signals for keyboard navigation of menus.
* gtk/gtkmenushell.c: Key press handler which activates
bindings for navigation, and accelerators, for handling
underline accelerators. Exported functions to select
and activate menu items in a menushell.
* gtk/testgtk.c: Added a new "Item Factory" test which
tests GtkItemFactory and the new keyboard navigation
of menus.
yeppers, accelerator changes to fix the gimp.
commit message dedicated to sopwith ;)
Thu Jun 18 03:30:06 1998 Tim Janik <timj@gtk.org>
* gtk/gtkaccellabel.h:
* gtk/gtkaccellabel.c: new function gtk_accel_label_accelerator_width to
request the size of the accelerator portion of an accel label.
(gtk_accel_label_size_request): don't request for the accelerators size.
(gtk_accel_label_expose_event): only draw the accelerator if we got
enough extra space.
* gtk/gtkmenuitem.c (gtk_menu_item_size_request): request accelerator
width from children.
* gtk/gtkmenu.c (gtk_menu_key_press): when adding an accelerator to an
object (after removal has been requested) check if there is still an
accelerator remaining to avoid adding two accelerators on an object.
this can happen for locked accelerators (or accelerator-frozen widgets).
(gtk_menu_size_request): feature childrens accelerator width in size
requests.
* gtk/gtknotebook.c (gtk_notebook_menu_item_create): use
gtk_widget_freeze_accelerators() for dynamically created menu items.
* gtk/gtksignal.h:
* gtk/gtksignal.c: new function gtk_signal_handler_pending_by_func()
which will return a handler_id > 0 if the specified function is pending
for `signal_id'.
* gtk/gtkwidget.h:
* gtk/gtkwidget.c: remove gtk_widget_stop_accelerator, which was just
a signal handler function to stop accelerator addition.
added gtk_widget_freeze_accelerators and gtk_widget_thaw_accelerators
which will prevent (undo) any accelerators from being added to or
removed from a widget.
Sat Jun 6 06:01:24 1998 Tim Janik <timj@gtk.org>
* gtk/gtksignal.c (gtk_signal_emitv): fixed an assertment.
* gtk/makeenums.awk: a script to generate the GtkEnumValue arrays from,
this should eventually be done by gentypeinfo.el somewhen.
* gtk/gtkenumvalues.c: new generated file to hold GtkEnumValue arrays.
* gtk/gtktypeutils.h: new function gtk_enum_values() to retrive all the
enum values of an enum type.
* gtk/gtk.defs:
* gtk/gtkcurve.h:
* gtk/gtkobject.h:
* gtk/gtkprivate.h:
* gtk/gtkwidget.h:
* gtk/gtkenums.h:
brought enum/flags definitions in sync, added a few more enum
definitions for bindings and pattern matching.
* some more macro and GtkType fixups in various places.
* gdk/gdktypes.h (enum): added a new value GDK_AFTER_MASK, which is used
as a key-release modifier for the binding system.
Fri Jun 5 06:06:06 1998 Tim Janik <timj@gtk.org>
* gtk/gtkmenu.h (struct _GtkMenu): removed GList*children, since it
was a stale list pointer that is already present in GtkMenuShell.
* gtk/gtkmenushell.h (struct _GtkMenuShellClass): added a signal
GtkMenuShell::selection_done which is emitted after the menu shell
poped down again and all possible menu items have been activated.
Thu Jun 4 02:20:42 1998 Tim Janik <timj@gtk.org>
* gtk/gtkmenushell.c (gtk_menu_shell_button_release): flush the x-queue
before activation of the menuitem, so the menu is actually taken off the
screen prior to any menu item activation.
* gtk/gtkctree.c (gtk_ctree_get_row_data): allow function invokation
for NULL nodes.
* gtk/gtkwidget.h:
* gtk/gtkwidget.c: new function gtk_widget_stop_accelerator to stop
the emission of the "add-accelerator" signal on a widget. this is
usefull to prevent accelerator installation on certain widgets.
* gtk/gtknotebook.c (gtk_notebook_menu_item_create): keep the menu
labels left justified, by setting their alignment. stop accelerator
installation for the menu items, since we use dynamic menus.
Wed Jun 3 06:41:22 1998 Tim Janik <timj@gtk.org>
* gtk/gtkmenufactory.c: adaptions to use the new accel groups. people
should *really* use GtkItemFactory. this is only for preserving source
compatibility where possible, use of GtkMenuFactory is deprecated as of
now.
* gtk/gtkobject.h (gtk_object_class_add_user_signal): new function
to create user signals of type GTK_RUN_NO_RECURSE. don't know why i
missed this possibility when i added gtk_object_class_add_user_signal
in late january.
* gtk/gtkmain.c (gtk_init): ignore subsequent function calls.
Sun May 31 07:31:09 1998 Tim Janik <timj@gtk.org>
* gtk/gtkaccelgroup.h:
* gtk/gtkaccelgroup.c: new implementation of the accelerator concept.
* gtk/gtkaccellabel.h:
* gtk/gtkaccellabel.c: new widget derived from GtkLabel whitch features
display of the accelerators associated with a certain widget.
* gtk/gtkitemfactory.h:
* gtk/gtkitemfactory.c: new widget, item factory with automatic rc
parsing and accelerator handling.
* gtk/gtkmenu.c (gtk_menu_reposition): new function to care for
positioning a menu.
(gtk_menu_map): removed the allocation code.
(gtk_menu_size_allocate): care for redrawing of children and resize
our widget->window correctly.
(gtk_menu_key_press): feature the new accelerator groups.
* gtk/gtkmenuitem.c (gtk_menu_item_size_allocate): reposition the
submenu if neccessary.
* gtk/gtkmenuitem.c:
* gtk/gtkcheckmenuitem.c:
* gtk/gtkradiomenuitem.c: use GtkAccelLabel in the *_new_with_label()
function variants.
* gdk/gdk.c:
(gdk_keyval_from_name):
(gdk_keyval_name): new functions for keyval<->key-name associations.
(gdk_keyval_to_upper):
(gdk_keyval_to_lower):
(gdk_keyval_is_upper):
(gdk_keyval_is_lower): new functions to check/translate keyvalues with
regards to their cases.
Wed May 27 00:48:10 1998 Tim Janik <timj@gtk.org>
* gtk/gtkwidget.c (gtk_widget_class_path): new function to calculate a
widget's class path.
(gtk_widget_path): new function to calculate a widget's name path.
* gtk/gtkrc.c: newly introduced GtkPatternSpec structures to speed up
pattern matching, features reversed pattern matches.
Mon Mar 9 15:48:10 1998 Tim Janik <timj@gimp.org>
* Signal signedness and naming corrections, plus GtkType fixes:
* gtk/gtkadjustment.c:
* gtk/gtkbutton.c:
* gtk/gtkcheckmenuitem.c:
* gtk/gtkclist.c:
* gtk/gtkcolorsel.c:
* gtk/gtkcontainer.c:
* gtk/gtkcurve.c:
* gtk/gtkdata.c:
* gtk/gtkeditable.c:
* gtk/gtkentry.c:
* gtk/gtkhandlebox.c:
* gtk/gtkinputdialog.c:
* gtk/gtkitem.c:
* gtk/gtklist.c:
* gtk/gtkmenuitem.c:
* gtk/gtkmenushell.c:
* gtk/gtknotebook.c:
* gtk/gtkstatusbar.c:
* gtk/gtktoolbar.c:
* gtk/gtktree.c:
* gtk/gtktreeitem.c:
* gtk/gtkwidget.c:
* gtk/gtktogglebutton.c:
* gtk/gtkwindow.c:
made the <widget>_signals[] arrays of type guint rather than gint.
* gtk/gtkwidget.c (gtk_widget_get_ancestor): made widget_type a GtkType.
* gtk/gtkcombo.h:
handler ids need to be of type guint (entry_change_id, list_change_id).
* gtk/gtkaccelerator.c:
changed signal_num to signal_id and typed it guint.
* gtk/gtkmain.c: made gtk_ndebug_keys a guint.
* gtk/gtkmenu.h:
* gtk/gtkmenu.c:
(gtk_menu_popup): made button a guint.
(gtk_menu_set_active): made index a guint.
* gtk/gtkmenuitem.h:
* gtk/gtkmenuitem.c:
made accelerator_signal a guint.
* gtk/gtkoptionmenu.h:
* gtk/gtkoptionmenu.c:
(gtk_option_menu_set_history): made index a guint.
* gtk/gtksignal.h:
* gtk/gtksignal.c:
* gtk/gtkobject.h:
* gtk/gtkobject.c: changed a bunch of prototypes to take guints rather
than gints. also made some conversions from guint to GtkType, left over
from when the fundamental-types system was introduced.
* gtk/gtkobject.h:
* gtk/gtkobject.c: made object_data_id_index and obj_count guints.
made *signals and nsignals guints in GtkObjectClass.
Tue Feb 3 15:09:55 1998 Tim Janik <timj@gimp.org>
* gtk/testgtk.c: don't add the same menu to different menuitems/
optionmenus.
* gtk/gtkmenuitem.h:
* gtk/gtkmenuitem.c: new function gtk_menu_item_remove_submenu ro
be consistent with optionmenu. use gtk_menu_attach_to_widget/
gtk_menu_detach for setting/removing the submenu.
invoke gtk_widget_destroy(submenu) in destructor to be consistent
with other destructors.
* gtk/gtkoptionmenu.h:
* gtk/gtkoptionmenu.c: attach/detach to menu widget via
gtk_menu_attach_to_widget/gtk_menu_detach.
invoke gtk_widget_destroy(menu) in destructor to be consistent
with other destructors.
