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gtk2/gtk/gtkmenuitem.c
CST 1999 Shawn T. Amundson 279e878bdd Added notice to look in AUTHORS and ChangeLog files for a list of changes. 
Wed Feb 24 01:22:39 CST 1999 Shawn T. Amundson <amundson@gtk.org>

        * *.[ch]: Added notice to look in AUTHORS and ChangeLog files
	  for a list of changes.
1999-02-24 07:37:18 +00:00

824 lines
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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <string.h>
#include "gtkaccellabel.h"
#include "gtkmain.h"
#include "gtkmenu.h"
#include "gtkmenubar.h"
#include "gtkmenuitem.h"
#include "gtksignal.h"
#define BORDER_SPACING 3
#define SELECT_TIMEOUT 75
#define MENU_ITEM_CLASS(w) GTK_MENU_ITEM_CLASS (GTK_OBJECT (w)->klass)
enum {
ACTIVATE,
ACTIVATE_ITEM,
LAST_SIGNAL
};
static void gtk_menu_item_class_init (GtkMenuItemClass *klass);
static void gtk_menu_item_init (GtkMenuItem *menu_item);
static void gtk_menu_item_destroy (GtkObject *object);
static void gtk_menu_item_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_menu_item_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_menu_item_paint (GtkWidget *widget,
GdkRectangle *area);
static void gtk_menu_item_draw (GtkWidget *widget,
GdkRectangle *area);
static gint gtk_menu_item_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_real_menu_item_select (GtkItem *item);
static void gtk_real_menu_item_deselect (GtkItem *item);
static void gtk_real_menu_item_activate_item (GtkMenuItem *item);
static gint gtk_menu_item_select_timeout (gpointer data);
static void gtk_menu_item_position_menu (GtkMenu *menu,
gint *x,
gint *y,
gpointer user_data);
static void gtk_menu_item_show_all (GtkWidget *widget);
static void gtk_menu_item_hide_all (GtkWidget *widget);
static void gtk_menu_item_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static GtkItemClass *parent_class;
static guint menu_item_signals[LAST_SIGNAL] = { 0 };
static guint32 last_submenu_deselect_time = 0;
GtkType
gtk_menu_item_get_type (void)
{
static GtkType menu_item_type = 0;
if (!menu_item_type)
{
static const GtkTypeInfo menu_item_info =
{
"GtkMenuItem",
sizeof (GtkMenuItem),
sizeof (GtkMenuItemClass),
(GtkClassInitFunc) gtk_menu_item_class_init,
(GtkObjectInitFunc) gtk_menu_item_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
menu_item_type = gtk_type_unique (gtk_item_get_type (), &menu_item_info);
gtk_type_set_chunk_alloc (menu_item_type, 16);
}
return menu_item_type;
}
static void
gtk_menu_item_class_init (GtkMenuItemClass *klass)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
GtkItemClass *item_class;
object_class = (GtkObjectClass*) klass;
widget_class = (GtkWidgetClass*) klass;
container_class = (GtkContainerClass*) klass;
item_class = (GtkItemClass*) klass;
parent_class = gtk_type_class (gtk_item_get_type ());
menu_item_signals[ACTIVATE] =
gtk_signal_new ("activate",
GTK_RUN_FIRST | GTK_RUN_ACTION,
object_class->type,
GTK_SIGNAL_OFFSET (GtkMenuItemClass, activate),
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
menu_item_signals[ACTIVATE_ITEM] =
gtk_signal_new ("activate_item",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkMenuItemClass, activate_item),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, menu_item_signals, LAST_SIGNAL);
object_class->destroy = gtk_menu_item_destroy;
widget_class->activate_signal = menu_item_signals[ACTIVATE];
widget_class->size_request = gtk_menu_item_size_request;
widget_class->size_allocate = gtk_menu_item_size_allocate;
widget_class->draw = gtk_menu_item_draw;
widget_class->expose_event = gtk_menu_item_expose;
widget_class->show_all = gtk_menu_item_show_all;
widget_class->hide_all = gtk_menu_item_hide_all;
container_class->forall = gtk_menu_item_forall;
item_class->select = gtk_real_menu_item_select;
item_class->deselect = gtk_real_menu_item_deselect;
klass->activate = NULL;
klass->activate_item = gtk_real_menu_item_activate_item;
klass->toggle_size = 0;
klass->hide_on_activate = TRUE;
}
static void
gtk_menu_item_init (GtkMenuItem *menu_item)
{
menu_item->submenu = NULL;
menu_item->accelerator_signal = menu_item_signals[ACTIVATE];
menu_item->toggle_size = 0;
menu_item->accelerator_width = 0;
menu_item->show_toggle_indicator = FALSE;
menu_item->show_submenu_indicator = FALSE;
menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
menu_item->submenu_placement = GTK_TOP_BOTTOM;
menu_item->right_justify = FALSE;
menu_item->timer = 0;
}
GtkWidget*
gtk_menu_item_new (void)
{
return GTK_WIDGET (gtk_type_new (gtk_menu_item_get_type ()));
}
GtkWidget*
gtk_menu_item_new_with_label (const gchar *label)
{
GtkWidget *menu_item;
GtkWidget *accel_label;
menu_item = gtk_menu_item_new ();
accel_label = gtk_accel_label_new (label);
gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
gtk_container_add (GTK_CONTAINER (menu_item), accel_label);
gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), menu_item);
gtk_widget_show (accel_label);
return menu_item;
}
static void
gtk_menu_item_destroy (GtkObject *object)
{
GtkMenuItem *menu_item;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (object));
menu_item = GTK_MENU_ITEM (object);
if (menu_item->submenu)
gtk_widget_destroy (menu_item->submenu);
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
static void
gtk_menu_item_detacher (GtkWidget *widget,
GtkMenu *menu)
{
GtkMenuItem *menu_item;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (widget));
menu_item = GTK_MENU_ITEM (widget);
g_return_if_fail (menu_item->submenu == (GtkWidget*) menu);
menu_item->submenu = NULL;
}
void
gtk_menu_item_set_submenu (GtkMenuItem *menu_item,
GtkWidget *submenu)
{
g_return_if_fail (menu_item != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
if (menu_item->submenu != submenu)
{
gtk_menu_item_remove_submenu (menu_item);
menu_item->submenu = submenu;
gtk_menu_attach_to_widget (GTK_MENU (submenu),
GTK_WIDGET (menu_item),
gtk_menu_item_detacher);
if (GTK_WIDGET (menu_item)->parent)
gtk_widget_queue_resize (GTK_WIDGET (menu_item));
}
}
void
gtk_menu_item_remove_submenu (GtkMenuItem *menu_item)
{
g_return_if_fail (menu_item != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
if (menu_item->submenu)
gtk_menu_detach (GTK_MENU (menu_item->submenu));
}
void
gtk_menu_item_set_placement (GtkMenuItem *menu_item,
GtkSubmenuPlacement placement)
{
g_return_if_fail (menu_item != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
menu_item->submenu_placement = placement;
}
void
gtk_menu_item_configure (GtkMenuItem *menu_item,
gint show_toggle_indicator,
gint show_submenu_indicator)
{
g_return_if_fail (menu_item != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
menu_item->show_toggle_indicator = (show_toggle_indicator == TRUE);
menu_item->show_submenu_indicator = (show_submenu_indicator == TRUE);
}
void
gtk_menu_item_select (GtkMenuItem *menu_item)
{
g_return_if_fail (menu_item != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
gtk_item_select (GTK_ITEM (menu_item));
}
void
gtk_menu_item_deselect (GtkMenuItem *menu_item)
{
g_return_if_fail (menu_item != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
gtk_item_deselect (GTK_ITEM (menu_item));
}
void
gtk_menu_item_activate (GtkMenuItem *menu_item)
{
g_return_if_fail (menu_item != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
gtk_signal_emit (GTK_OBJECT (menu_item), menu_item_signals[ACTIVATE]);
}
static void
gtk_menu_item_accel_width_foreach (GtkWidget *widget,
gpointer data)
{
guint *width = data;
if (GTK_IS_ACCEL_LABEL (widget))
{
guint w;
w = gtk_accel_label_get_accel_width (GTK_ACCEL_LABEL (widget));
*width = MAX (*width, w);
}
else if (GTK_IS_CONTAINER (widget))
gtk_container_foreach (GTK_CONTAINER (widget),
gtk_menu_item_accel_width_foreach,
data);
}
static void
gtk_menu_item_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkMenuItem *menu_item;
GtkBin *bin;
guint accel_width;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (widget));
g_return_if_fail (requisition != NULL);
bin = GTK_BIN (widget);
menu_item = GTK_MENU_ITEM (widget);
requisition->width = (GTK_CONTAINER (widget)->border_width +
widget->style->klass->xthickness +
BORDER_SPACING) * 2;
requisition->height = (GTK_CONTAINER (widget)->border_width +
widget->style->klass->ythickness) * 2;
if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
{
GtkRequisition child_requisition;
gtk_widget_size_request (bin->child, &child_requisition);
requisition->width += child_requisition.width;
requisition->height += child_requisition.height;
}
if (menu_item->submenu && menu_item->show_submenu_indicator)
requisition->width += 21;
accel_width = 0;
gtk_container_foreach (GTK_CONTAINER (menu_item),
gtk_menu_item_accel_width_foreach,
&accel_width);
menu_item->accelerator_width = accel_width;
}
static void
gtk_menu_item_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkMenuItem *menu_item;
GtkBin *bin;
GtkAllocation child_allocation;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (widget));
g_return_if_fail (allocation != NULL);
menu_item = GTK_MENU_ITEM (widget);
bin = GTK_BIN (widget);
widget->allocation = *allocation;
if (bin->child)
{
child_allocation.x = (GTK_CONTAINER (widget)->border_width +
widget->style->klass->xthickness +
BORDER_SPACING);
child_allocation.y = (GTK_CONTAINER (widget)->border_width +
widget->style->klass->ythickness);
child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
child_allocation.x += GTK_MENU_ITEM (widget)->toggle_size;
child_allocation.width -= GTK_MENU_ITEM (widget)->toggle_size;
if (menu_item->submenu && menu_item->show_submenu_indicator)
child_allocation.width -= 21;
gtk_widget_size_allocate (bin->child, &child_allocation);
}
if (GTK_WIDGET_REALIZED (widget))
gdk_window_move_resize (widget->window,
allocation->x, allocation->y,
allocation->width, allocation->height);
if (menu_item->submenu)
gtk_menu_reposition (GTK_MENU (menu_item->submenu));
}
static void
gtk_menu_item_paint (GtkWidget *widget,
GdkRectangle *area)
{
GtkMenuItem *menu_item;
GtkStateType state_type;
GtkShadowType shadow_type;
gint width, height;
gint x, y;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (widget));
if (GTK_WIDGET_DRAWABLE (widget))
{
menu_item = GTK_MENU_ITEM (widget);
state_type = widget->state;
x = GTK_CONTAINER (menu_item)->border_width;
y = GTK_CONTAINER (menu_item)->border_width;
width = widget->allocation.width - x * 2;
height = widget->allocation.height - y * 2;
if ((state_type == GTK_STATE_PRELIGHT) &&
(GTK_BIN (menu_item)->child))
gtk_paint_box (widget->style,
widget->window,
GTK_STATE_PRELIGHT,
GTK_SHADOW_OUT,
area, widget, "menuitem",
x, y, width, height);
else
{
gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
gdk_window_clear_area (widget->window, area->x, area->y, area->width, area->height);
}
if (menu_item->submenu && menu_item->show_submenu_indicator)
{
shadow_type = GTK_SHADOW_OUT;
if (state_type == GTK_STATE_PRELIGHT)
shadow_type = GTK_SHADOW_IN;
gtk_paint_arrow (widget->style, widget->window,
state_type, shadow_type,
area, widget, "menuitem",
GTK_ARROW_RIGHT, TRUE,
x + width - 15, y + height / 2 - 5, 10, 10);
}
else if (!GTK_BIN (menu_item)->child)
{
gtk_paint_hline (widget->style, widget->window, GTK_STATE_NORMAL,
area, widget, "menuitem",
0, widget->allocation.width, 0);
}
}
}
static void
gtk_menu_item_draw (GtkWidget *widget,
GdkRectangle *area)
{
GtkBin *bin;
GdkRectangle child_area;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (widget));
g_return_if_fail (area != NULL);
if (GTK_WIDGET_DRAWABLE (widget))
{
gtk_menu_item_paint (widget, area);
bin = GTK_BIN (widget);
if (bin->child)
{
if (gtk_widget_intersect (bin->child, area, &child_area))
gtk_widget_draw (bin->child, &child_area);
}
}
}
static gint
gtk_menu_item_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkBin *bin;
GdkEventExpose child_event;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_MENU_ITEM (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_WIDGET_DRAWABLE (widget))
{
gtk_menu_item_paint (widget, &event->area);
bin = GTK_BIN (widget);
if (bin->child)
{
child_event = *event;
if (GTK_WIDGET_NO_WINDOW (bin->child) &&
gtk_widget_intersect (bin->child, &event->area, &child_event.area))
gtk_widget_event (bin->child, (GdkEvent*) &child_event);
}
}
return FALSE;
}
static void
gtk_real_menu_item_select (GtkItem *item)
{
GtkMenuItem *menu_item;
g_return_if_fail (item != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (item));
menu_item = GTK_MENU_ITEM (item);
/* if (menu_item->submenu && !GTK_WIDGET_VISIBLE (menu_item->submenu))*/
if (menu_item->submenu)
{
guint32 etime;
GdkEvent *event = gtk_get_current_event ();
etime = event ? gdk_event_get_time (event) : GDK_CURRENT_TIME;
if (etime >= last_submenu_deselect_time &&
last_submenu_deselect_time + SELECT_TIMEOUT > etime)
menu_item->timer = gtk_timeout_add (SELECT_TIMEOUT - (etime - last_submenu_deselect_time),
gtk_menu_item_select_timeout,
menu_item);
else
gtk_menu_item_select_timeout (menu_item);
if(event) gdk_event_free(event);
}
gtk_widget_set_state (GTK_WIDGET (menu_item), GTK_STATE_PRELIGHT);
gtk_widget_draw (GTK_WIDGET (menu_item), NULL);
}
static void
gtk_real_menu_item_deselect (GtkItem *item)
{
GtkMenuItem *menu_item;
g_return_if_fail (item != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (item));
menu_item = GTK_MENU_ITEM (item);
if (menu_item->submenu)
{
guint32 etime;
GdkEvent *event = gtk_get_current_event ();
if (menu_item->timer)
{
gtk_timeout_remove (menu_item->timer);
menu_item->timer = 0;
}
else
gtk_menu_popdown (GTK_MENU (menu_item->submenu));
etime = event ? gdk_event_get_time (event) : GDK_CURRENT_TIME;
if (etime > last_submenu_deselect_time)
last_submenu_deselect_time = etime;
if(event) gdk_event_free(event);
}
gtk_widget_set_state (GTK_WIDGET (menu_item), GTK_STATE_NORMAL);
gtk_widget_draw (GTK_WIDGET (menu_item), NULL);
}
static void
gtk_real_menu_item_activate_item (GtkMenuItem *menu_item)
{
GtkWidget *widget;
g_return_if_fail (menu_item != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
widget = GTK_WIDGET (menu_item);
if (widget->parent &&
GTK_IS_MENU_SHELL (widget->parent))
{
if (menu_item->submenu == NULL)
gtk_menu_shell_activate_item (GTK_MENU_SHELL (widget->parent),
widget, TRUE);
else
{
GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget->parent);
if (!menu_shell->active)
{
gtk_grab_add (GTK_WIDGET (menu_shell));
menu_shell->have_grab = TRUE;
menu_shell->active = TRUE;
}
gtk_menu_shell_select_item (GTK_MENU_SHELL (widget->parent), widget);
}
}
}
static gint
gtk_menu_item_select_timeout (gpointer data)
{
GtkMenuItem *menu_item;
GDK_THREADS_ENTER ();
menu_item = GTK_MENU_ITEM (data);
menu_item->timer = 0;
if (GTK_WIDGET_IS_SENSITIVE (menu_item->submenu))
{
gtk_menu_popup (GTK_MENU (menu_item->submenu),
GTK_WIDGET (menu_item)->parent,
GTK_WIDGET (menu_item),
gtk_menu_item_position_menu,
menu_item,
GTK_MENU_SHELL (GTK_WIDGET (menu_item)->parent)->button,
0);
/* This is a bit of a hack - we want to select the first item
* of menus hanging of a menu bar, but not for cascading submenus
*/
if (GTK_IS_MENU_BAR (GTK_WIDGET (menu_item)->parent))
{
GtkMenuShell *submenu = GTK_MENU_SHELL (menu_item->submenu);
if (submenu->children)
gtk_menu_shell_select_item (submenu, submenu->children->data);
}
}
GDK_THREADS_LEAVE ();
return FALSE;
}
static void
gtk_menu_item_position_menu (GtkMenu *menu,
gint *x,
gint *y,
gpointer user_data)
{
GtkMenuItem *menu_item;
GtkWidget *parent_menu_item;
gint screen_width;
gint screen_height;
gint twidth, theight;
gint tx, ty;
g_return_if_fail (menu != NULL);
g_return_if_fail (x != NULL);
g_return_if_fail (y != NULL);
menu_item = GTK_MENU_ITEM (user_data);
twidth = GTK_WIDGET (menu)->requisition.width;
theight = GTK_WIDGET (menu)->requisition.height;
screen_width = gdk_screen_width ();
screen_height = gdk_screen_height ();
if (!gdk_window_get_origin (GTK_WIDGET (menu_item)->window, &tx, &ty))
{
g_warning ("Menu not on screen");
return;
}
switch (menu_item->submenu_placement)
{
case GTK_TOP_BOTTOM:
if ((ty + GTK_WIDGET (menu_item)->allocation.height + theight) <= screen_height)
ty += GTK_WIDGET (menu_item)->allocation.height;
else if ((ty - theight) >= 0)
ty -= theight;
else
ty += GTK_WIDGET (menu_item)->allocation.height;
if ((tx + twidth) > screen_width)
{
tx -= ((tx + twidth) - screen_width);
if (tx < 0)
tx = 0;
}
break;
case GTK_LEFT_RIGHT:
menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
parent_menu_item = GTK_MENU (GTK_WIDGET (menu_item)->parent)->parent_menu_item;
if (parent_menu_item)
menu_item->submenu_direction = GTK_MENU_ITEM (parent_menu_item)->submenu_direction;
switch (menu_item->submenu_direction)
{
case GTK_DIRECTION_LEFT:
if ((tx - twidth) >= 0)
tx -= twidth;
else
{
menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
tx += GTK_WIDGET (menu_item)->allocation.width - 5;
}
break;
case GTK_DIRECTION_RIGHT:
if ((tx + GTK_WIDGET (menu_item)->allocation.width + twidth - 5) <= screen_width)
tx += GTK_WIDGET (menu_item)->allocation.width - 5;
else
{
menu_item->submenu_direction = GTK_DIRECTION_LEFT;
tx -= twidth;
}
break;
}
if ((ty + GTK_WIDGET (menu_item)->allocation.height / 4 + theight) <= screen_height)
ty += GTK_WIDGET (menu_item)->allocation.height / 4;
else
{
ty -= ((ty + theight) - screen_height);
if (ty < 0)
ty = 0;
}
break;
}
*x = tx;
*y = ty;
}
void
gtk_menu_item_right_justify(GtkMenuItem *menuitem)
{
g_return_if_fail (menuitem != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (menuitem));
menuitem->right_justify = 1;
}
static void
gtk_menu_item_show_all (GtkWidget *widget)
{
GtkMenuItem *menu_item;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (widget));
menu_item = GTK_MENU_ITEM (widget);
/* show children including submenu */
if (menu_item->submenu)
gtk_widget_show_all (menu_item->submenu);
gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL);
gtk_widget_show (widget);
}
static void
gtk_menu_item_hide_all (GtkWidget *widget)
{
GtkMenuItem *menu_item;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (widget));
gtk_widget_hide (widget);
menu_item = GTK_MENU_ITEM (widget);
/* hide children including submenu */
gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_hide_all, NULL);
if (menu_item->submenu)
gtk_widget_hide_all (menu_item->submenu);
}
static void
gtk_menu_item_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkBin *bin;
GtkMenuItem *menu_item;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_MENU_ITEM (container));
g_return_if_fail (callback != NULL);
bin = GTK_BIN (container);
menu_item = GTK_MENU_ITEM (container);
if (bin->child)
(* callback) (bin->child, callback_data);
if (include_internals && menu_item->submenu)
(* callback) (menu_item->submenu, callback_data);
}
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