forked from AuroraMiddleware/gtk
5842311062
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.
641 lines
18 KiB
C
641 lines
18 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "gtkmenu.h"
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#include "gtkmenuitem.h"
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#include "gtkoptionmenu.h"
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#include "gtksignal.h"
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#define CHILD_LEFT_SPACING 5
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#define CHILD_RIGHT_SPACING 1
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#define CHILD_TOP_SPACING 1
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#define CHILD_BOTTOM_SPACING 1
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#define OPTION_INDICATOR_WIDTH 12
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#define OPTION_INDICATOR_HEIGHT 8
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#define OPTION_INDICATOR_SPACING 2
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static void gtk_option_menu_class_init (GtkOptionMenuClass *klass);
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static void gtk_option_menu_init (GtkOptionMenu *option_menu);
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static void gtk_option_menu_destroy (GtkObject *object);
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static void gtk_option_menu_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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static void gtk_option_menu_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_option_menu_paint (GtkWidget *widget,
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GdkRectangle *area);
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static void gtk_option_menu_draw (GtkWidget *widget,
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GdkRectangle *area);
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static gint gtk_option_menu_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static gint gtk_option_menu_button_press (GtkWidget *widget,
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GdkEventButton *event);
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static void gtk_option_menu_deactivate (GtkMenuShell *menu_shell,
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GtkOptionMenu *option_menu);
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static void gtk_option_menu_update_contents (GtkOptionMenu *option_menu);
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static void gtk_option_menu_remove_contents (GtkOptionMenu *option_menu);
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static void gtk_option_menu_calc_size (GtkOptionMenu *option_menu);
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static void gtk_option_menu_position (GtkMenu *menu,
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gint *x,
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gint *y,
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gpointer user_data);
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static void gtk_option_menu_show_all (GtkWidget *widget);
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static void gtk_option_menu_hide_all (GtkWidget *widget);
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static GtkButtonClass *parent_class = NULL;
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guint
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gtk_option_menu_get_type ()
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{
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static guint option_menu_type = 0;
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if (!option_menu_type)
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{
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GtkTypeInfo option_menu_info =
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{
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"GtkOptionMenu",
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sizeof (GtkOptionMenu),
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sizeof (GtkOptionMenuClass),
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(GtkClassInitFunc) gtk_option_menu_class_init,
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(GtkObjectInitFunc) gtk_option_menu_init,
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(GtkArgSetFunc) NULL,
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(GtkArgGetFunc) NULL,
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};
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option_menu_type = gtk_type_unique (gtk_button_get_type (), &option_menu_info);
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}
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return option_menu_type;
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}
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static void
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gtk_option_menu_class_init (GtkOptionMenuClass *class)
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{
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GtkObjectClass *object_class;
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GtkWidgetClass *widget_class;
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GtkButtonClass *button_class;
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object_class = (GtkObjectClass*) class;
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widget_class = (GtkWidgetClass*) class;
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button_class = (GtkButtonClass*) class;
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parent_class = gtk_type_class (gtk_button_get_type ());
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object_class->destroy = gtk_option_menu_destroy;
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widget_class->draw = gtk_option_menu_draw;
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widget_class->draw_focus = NULL;
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widget_class->size_request = gtk_option_menu_size_request;
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widget_class->size_allocate = gtk_option_menu_size_allocate;
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widget_class->expose_event = gtk_option_menu_expose;
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widget_class->button_press_event = gtk_option_menu_button_press;
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widget_class->show_all = gtk_option_menu_show_all;
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widget_class->hide_all = gtk_option_menu_hide_all;
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}
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static void
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gtk_option_menu_init (GtkOptionMenu *option_menu)
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{
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GTK_WIDGET_UNSET_FLAGS (option_menu, GTK_CAN_FOCUS);
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option_menu->menu = NULL;
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option_menu->menu_item = NULL;
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option_menu->width = 0;
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option_menu->height = 0;
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}
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GtkWidget*
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gtk_option_menu_new ()
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{
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return GTK_WIDGET (gtk_type_new (gtk_option_menu_get_type ()));
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}
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GtkWidget*
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gtk_option_menu_get_menu (GtkOptionMenu *option_menu)
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{
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g_return_val_if_fail (option_menu != NULL, NULL);
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g_return_val_if_fail (GTK_IS_OPTION_MENU (option_menu), NULL);
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return option_menu->menu;
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}
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static void
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gtk_option_menu_detacher (GtkWidget *widget,
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GtkMenu *menu)
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{
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GtkOptionMenu *option_menu;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_OPTION_MENU (widget));
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option_menu = GTK_OPTION_MENU (widget);
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g_return_if_fail (option_menu->menu == (GtkWidget*) menu);
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gtk_option_menu_remove_contents (option_menu);
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gtk_signal_disconnect_by_data (GTK_OBJECT (option_menu->menu),
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option_menu);
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option_menu->menu = NULL;
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}
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void
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gtk_option_menu_set_menu (GtkOptionMenu *option_menu,
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GtkWidget *menu)
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{
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g_return_if_fail (option_menu != NULL);
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g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
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g_return_if_fail (menu != NULL);
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g_return_if_fail (GTK_IS_MENU (menu));
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if (option_menu->menu != menu)
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{
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gtk_option_menu_remove_menu (option_menu);
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option_menu->menu = menu;
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gtk_menu_attach_to_widget (GTK_MENU (menu),
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GTK_WIDGET (option_menu),
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gtk_option_menu_detacher);
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gtk_option_menu_calc_size (option_menu);
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gtk_signal_connect (GTK_OBJECT (option_menu->menu), "deactivate",
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(GtkSignalFunc) gtk_option_menu_deactivate,
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option_menu);
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if (GTK_WIDGET (option_menu)->parent)
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gtk_widget_queue_resize (GTK_WIDGET (option_menu));
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gtk_option_menu_update_contents (option_menu);
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}
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}
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void
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gtk_option_menu_remove_menu (GtkOptionMenu *option_menu)
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{
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g_return_if_fail (option_menu != NULL);
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g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
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if (option_menu->menu)
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gtk_menu_detach (GTK_MENU (option_menu->menu));
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}
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void
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gtk_option_menu_set_history (GtkOptionMenu *option_menu,
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gint index)
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{
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GtkWidget *menu_item;
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g_return_if_fail (option_menu != NULL);
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g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
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if (option_menu->menu)
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{
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gtk_menu_set_active (GTK_MENU (option_menu->menu), index);
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menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
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if (menu_item != option_menu->menu_item)
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{
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gtk_option_menu_remove_contents (option_menu);
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gtk_option_menu_update_contents (option_menu);
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}
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}
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}
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static void
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gtk_option_menu_destroy (GtkObject *object)
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{
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GtkOptionMenu *option_menu;
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g_return_if_fail (object != NULL);
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g_return_if_fail (GTK_IS_OPTION_MENU (object));
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option_menu = GTK_OPTION_MENU (object);
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if (option_menu->menu)
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gtk_widget_destroy (option_menu->menu);
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if (GTK_OBJECT_CLASS (parent_class)->destroy)
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(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
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}
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static void
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gtk_option_menu_size_request (GtkWidget *widget,
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GtkRequisition *requisition)
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{
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GtkOptionMenu *option_menu;
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gint tmp;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_OPTION_MENU (widget));
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g_return_if_fail (requisition != NULL);
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option_menu = GTK_OPTION_MENU (widget);
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requisition->width = ((GTK_CONTAINER (widget)->border_width +
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GTK_WIDGET (widget)->style->klass->xthickness) * 2 +
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option_menu->width +
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OPTION_INDICATOR_WIDTH +
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OPTION_INDICATOR_SPACING * 5 +
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CHILD_LEFT_SPACING + CHILD_RIGHT_SPACING);
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requisition->height = ((GTK_CONTAINER (widget)->border_width +
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GTK_WIDGET (widget)->style->klass->ythickness) * 2 +
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option_menu->height +
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CHILD_TOP_SPACING + CHILD_BOTTOM_SPACING);
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tmp = (requisition->height - option_menu->height +
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OPTION_INDICATOR_HEIGHT + OPTION_INDICATOR_SPACING * 2);
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requisition->height = MAX (requisition->height, tmp);
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}
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static void
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gtk_option_menu_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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GtkWidget *child;
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GtkAllocation child_allocation;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_OPTION_MENU (widget));
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g_return_if_fail (allocation != NULL);
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widget->allocation = *allocation;
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if (GTK_WIDGET_REALIZED (widget))
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gdk_window_move_resize (widget->window,
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allocation->x, allocation->y,
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allocation->width, allocation->height);
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child = GTK_BUTTON (widget)->child;
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if (child && GTK_WIDGET_VISIBLE (child))
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{
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child_allocation.x = (GTK_CONTAINER (widget)->border_width +
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GTK_WIDGET (widget)->style->klass->xthickness);
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child_allocation.y = (GTK_CONTAINER (widget)->border_width +
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GTK_WIDGET (widget)->style->klass->ythickness);
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child_allocation.width = (allocation->width - child_allocation.x * 2 -
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OPTION_INDICATOR_WIDTH - OPTION_INDICATOR_SPACING * 5 -
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CHILD_LEFT_SPACING - CHILD_RIGHT_SPACING);
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child_allocation.height = (allocation->height - child_allocation.y * 2 -
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CHILD_TOP_SPACING - CHILD_BOTTOM_SPACING);
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child_allocation.x += CHILD_LEFT_SPACING;
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child_allocation.y += CHILD_RIGHT_SPACING;
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gtk_widget_size_allocate (child, &child_allocation);
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}
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}
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static void
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gtk_option_menu_paint (GtkWidget *widget,
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GdkRectangle *area)
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{
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GdkRectangle restrict_area;
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GdkRectangle new_area;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_OPTION_MENU (widget));
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g_return_if_fail (area != NULL);
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if (GTK_WIDGET_DRAWABLE (widget))
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{
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restrict_area.x = GTK_CONTAINER (widget)->border_width;
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restrict_area.y = GTK_CONTAINER (widget)->border_width;
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restrict_area.width = widget->allocation.width - restrict_area.x * 2;
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restrict_area.height = widget->allocation.height - restrict_area.y * 2;
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if (gdk_rectangle_intersect (area, &restrict_area, &new_area))
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{
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gtk_style_set_background (widget->style, widget->window, GTK_WIDGET_STATE (widget));
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gdk_window_clear_area (widget->window,
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new_area.x, new_area.y,
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new_area.width, new_area.height);
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gtk_draw_shadow (widget->style, widget->window,
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GTK_WIDGET_STATE (widget), GTK_SHADOW_OUT,
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restrict_area.x, restrict_area.y,
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restrict_area.width, restrict_area.height);
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gtk_draw_shadow (widget->style, widget->window,
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GTK_WIDGET_STATE (widget), GTK_SHADOW_OUT,
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restrict_area.x + restrict_area.width - restrict_area.x -
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OPTION_INDICATOR_WIDTH - OPTION_INDICATOR_SPACING * 4,
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restrict_area.y + (restrict_area.height - OPTION_INDICATOR_HEIGHT) / 2,
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OPTION_INDICATOR_WIDTH, OPTION_INDICATOR_HEIGHT);
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}
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}
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}
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static void
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gtk_option_menu_draw (GtkWidget *widget,
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GdkRectangle *area)
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{
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GtkWidget *child;
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GdkRectangle child_area;
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g_return_if_fail (widget != NULL);
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g_return_if_fail (GTK_IS_OPTION_MENU (widget));
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g_return_if_fail (area != NULL);
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if (GTK_WIDGET_DRAWABLE (widget))
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{
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gtk_option_menu_paint (widget, area);
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child = GTK_BUTTON (widget)->child;
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if (child && gtk_widget_intersect (child, area, &child_area))
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gtk_widget_draw (child, &child_area);
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}
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}
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static gint
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gtk_option_menu_expose (GtkWidget *widget,
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GdkEventExpose *event)
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{
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GtkWidget *child;
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GdkEventExpose child_event;
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gint remove_child;
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g_return_val_if_fail (widget != NULL, FALSE);
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g_return_val_if_fail (GTK_IS_OPTION_MENU (widget), FALSE);
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g_return_val_if_fail (event != NULL, FALSE);
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if (GTK_WIDGET_DRAWABLE (widget))
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{
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gtk_option_menu_paint (widget, &event->area);
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remove_child = FALSE;
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child = GTK_BUTTON (widget)->child;
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if (!child)
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{
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if (!GTK_OPTION_MENU (widget)->menu)
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return FALSE;
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gtk_option_menu_update_contents (GTK_OPTION_MENU (widget));
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child = GTK_BUTTON (widget)->child;
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if (!child)
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return FALSE;
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remove_child = TRUE;
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}
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child_event = *event;
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if (GTK_WIDGET_NO_WINDOW (child) &&
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gtk_widget_intersect (child, &event->area, &child_event.area))
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gtk_widget_event (child, (GdkEvent*) &child_event);
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if (remove_child)
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gtk_option_menu_remove_contents (GTK_OPTION_MENU (widget));
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}
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return FALSE;
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}
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static gint
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gtk_option_menu_button_press (GtkWidget *widget,
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GdkEventButton *event)
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{
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GtkOptionMenu *option_menu;
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g_return_val_if_fail (widget != NULL, FALSE);
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g_return_val_if_fail (GTK_IS_OPTION_MENU (widget), FALSE);
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g_return_val_if_fail (event != NULL, FALSE);
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if ((event->type == GDK_BUTTON_PRESS) &&
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(event->button == 1))
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{
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option_menu = GTK_OPTION_MENU (widget);
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gtk_option_menu_remove_contents (option_menu);
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gtk_menu_popup (GTK_MENU (option_menu->menu), NULL, NULL,
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gtk_option_menu_position, option_menu,
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event->button, event->time);
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}
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return FALSE;
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}
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static void
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gtk_option_menu_deactivate (GtkMenuShell *menu_shell,
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GtkOptionMenu *option_menu)
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{
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g_return_if_fail (menu_shell != NULL);
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g_return_if_fail (option_menu != NULL);
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g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
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gtk_option_menu_update_contents (option_menu);
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}
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static void
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gtk_option_menu_update_contents (GtkOptionMenu *option_menu)
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{
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GtkWidget *child;
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g_return_if_fail (option_menu != NULL);
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g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
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if (option_menu->menu)
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{
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gtk_option_menu_remove_contents (option_menu);
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option_menu->menu_item = gtk_menu_get_active (GTK_MENU (option_menu->menu));
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if (option_menu->menu_item)
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{
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gtk_widget_ref (option_menu->menu_item);
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child = GTK_BIN (option_menu->menu_item)->child;
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if (child)
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{
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gtk_container_block_resize (GTK_CONTAINER (option_menu));
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if (GTK_WIDGET (option_menu)->state != child->state)
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gtk_widget_set_state (child, GTK_WIDGET (option_menu)->state);
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gtk_widget_reparent (child, GTK_WIDGET (option_menu));
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gtk_container_unblock_resize (GTK_CONTAINER (option_menu));
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}
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gtk_widget_size_request (child, &child->requisition);
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gtk_widget_size_allocate (GTK_WIDGET (option_menu),
|
|
&(GTK_WIDGET (option_menu)->allocation));
|
|
|
|
if (GTK_WIDGET_DRAWABLE (option_menu))
|
|
gtk_widget_queue_draw (GTK_WIDGET (option_menu));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_option_menu_remove_contents (GtkOptionMenu *option_menu)
|
|
{
|
|
g_return_if_fail (option_menu != NULL);
|
|
g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
|
|
|
|
if (GTK_BUTTON (option_menu)->child)
|
|
{
|
|
gtk_container_block_resize (GTK_CONTAINER (option_menu));
|
|
if (GTK_WIDGET (option_menu->menu_item)->state != GTK_BUTTON (option_menu)->child->state)
|
|
gtk_widget_set_state (GTK_BUTTON (option_menu)->child,
|
|
GTK_WIDGET (option_menu->menu_item)->state);
|
|
gtk_widget_unrealize (GTK_BUTTON (option_menu)->child);
|
|
gtk_widget_reparent (GTK_BUTTON (option_menu)->child, option_menu->menu_item);
|
|
gtk_widget_unref (option_menu->menu_item);
|
|
option_menu->menu_item = NULL;
|
|
gtk_container_unblock_resize (GTK_CONTAINER (option_menu));
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_option_menu_calc_size (GtkOptionMenu *option_menu)
|
|
{
|
|
GtkWidget *child;
|
|
GList *children;
|
|
|
|
g_return_if_fail (option_menu != NULL);
|
|
g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
|
|
|
|
option_menu->width = 0;
|
|
option_menu->height = 0;
|
|
|
|
if (option_menu->menu)
|
|
{
|
|
children = GTK_MENU_SHELL (option_menu->menu)->children;
|
|
while (children)
|
|
{
|
|
child = children->data;
|
|
children = children->next;
|
|
|
|
if (GTK_WIDGET_VISIBLE (child))
|
|
{
|
|
gtk_widget_size_request (child, &child->requisition);
|
|
|
|
option_menu->width = MAX (option_menu->width, child->requisition.width);
|
|
option_menu->height = MAX (option_menu->height, child->requisition.height);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_option_menu_position (GtkMenu *menu,
|
|
gint *x,
|
|
gint *y,
|
|
gpointer user_data)
|
|
{
|
|
GtkOptionMenu *option_menu;
|
|
GtkWidget *active;
|
|
GtkWidget *child;
|
|
GList *children;
|
|
gint shift_menu;
|
|
gint screen_width;
|
|
gint screen_height;
|
|
gint menu_xpos;
|
|
gint menu_ypos;
|
|
gint width;
|
|
gint height;
|
|
|
|
g_return_if_fail (user_data != NULL);
|
|
g_return_if_fail (GTK_IS_OPTION_MENU (user_data));
|
|
|
|
option_menu = GTK_OPTION_MENU (user_data);
|
|
|
|
width = GTK_WIDGET (menu)->allocation.width;
|
|
height = GTK_WIDGET (menu)->allocation.height;
|
|
|
|
active = gtk_menu_get_active (GTK_MENU (option_menu->menu));
|
|
children = GTK_MENU_SHELL (option_menu->menu)->children;
|
|
gdk_window_get_origin (GTK_WIDGET (option_menu)->window, &menu_xpos, &menu_ypos);
|
|
|
|
menu_ypos += GTK_WIDGET (option_menu)->allocation.height / 2 - 2;
|
|
|
|
if (active != NULL)
|
|
menu_ypos -= active->requisition.height / 2;
|
|
|
|
while (children)
|
|
{
|
|
child = children->data;
|
|
|
|
if (active == child)
|
|
break;
|
|
|
|
menu_ypos -= child->allocation.height;
|
|
children = children->next;
|
|
}
|
|
|
|
screen_width = gdk_screen_width ();
|
|
screen_height = gdk_screen_height ();
|
|
|
|
shift_menu = FALSE;
|
|
if (menu_ypos < 0)
|
|
{
|
|
menu_ypos = 0;
|
|
shift_menu = TRUE;
|
|
}
|
|
else if ((menu_ypos + height) > screen_height)
|
|
{
|
|
menu_ypos -= ((menu_ypos + height) - screen_height);
|
|
shift_menu = TRUE;
|
|
}
|
|
|
|
if (shift_menu)
|
|
{
|
|
if ((menu_xpos + GTK_WIDGET (option_menu)->allocation.width + width) <= screen_width)
|
|
menu_xpos += GTK_WIDGET (option_menu)->allocation.width;
|
|
else
|
|
menu_xpos -= width;
|
|
}
|
|
|
|
if (menu_xpos < 0)
|
|
menu_xpos = 0;
|
|
else if ((menu_xpos + width) > screen_width)
|
|
menu_xpos -= ((menu_xpos + width) - screen_width);
|
|
|
|
*x = menu_xpos;
|
|
*y = menu_ypos;
|
|
}
|
|
|
|
|
|
static void
|
|
gtk_option_menu_show_all (GtkWidget *widget)
|
|
{
|
|
GtkContainer *container;
|
|
GtkOptionMenu *option_menu;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_OPTION_MENU (widget));
|
|
container = GTK_CONTAINER (widget);
|
|
option_menu = GTK_OPTION_MENU (widget);
|
|
|
|
gtk_widget_show (widget);
|
|
gtk_container_foreach (container, (GtkCallback) gtk_widget_show_all, NULL);
|
|
if (option_menu->menu)
|
|
gtk_widget_show_all (option_menu->menu);
|
|
if (option_menu->menu_item)
|
|
gtk_widget_show_all (option_menu->menu_item);
|
|
}
|
|
|
|
|
|
static void
|
|
gtk_option_menu_hide_all (GtkWidget *widget)
|
|
{
|
|
GtkContainer *container;
|
|
|
|
g_return_if_fail (widget != NULL);
|
|
g_return_if_fail (GTK_IS_OPTION_MENU (widget));
|
|
container = GTK_CONTAINER (widget);
|
|
|
|
gtk_widget_hide (widget);
|
|
gtk_container_foreach (container, (GtkCallback) gtk_widget_hide_all, NULL);
|
|
}
|
|
|