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009212ad28
Thu May 17 16:20:04 2001 Jonathan Blandford <jrb@redhat.com> * demos/gtk-demo/main.c (fontify): It's the worlds ugliest highlighting code!!!! The result is okay so long as you don't try to stress it. It also highlights a bug in the TextView so it's in an unproportional font right now until it's fixed. *demos/gtk-demo/*.c: Clean up code a bit to make it ugly-parser(TM) friendly. (-:
219 lines
6.9 KiB
C
219 lines
6.9 KiB
C
/* Menus
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*
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* There are several widgets involved in displaying menus. The
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* GtkMenuBar widget is a horizontal menu bar, which normally appears
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* at the top of an application. The GtkMenu widget is the actual menu
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* that pops up. Both GtkMenuBar and GtkMenu are subclasses of
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* GtkMenuShell; a GtkMenuShell contains menu items
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* (GtkMenuItem). Each menu item contains text and/or images and can
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* be selected by the user.
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*
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* There are several kinds of menu item, including plain GtkMenuItem,
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* GtkCheckMenuItem which can be checked/unchecked, GtkRadioMenuItem
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* which is a check menu item that's in a mutually exclusive group,
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* GtkSeparatorMenuItem which is a separator bar, GtkTearoffMenuItem
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* which allows a GtkMenu to be torn off, and GtkImageMenuItem which
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* can place a GtkImage or other widget next to the menu text.
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*
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* A GtkMenuItem can have a submenu, which is simply a GtkMenu to pop
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* up when the menu item is selected. Typically, all menu items in a menu bar
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* have submenus.
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*
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* The GtkOptionMenu widget is a button that pops up a GtkMenu when clicked.
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* It's used inside dialogs and such.
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*
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* GtkItemFactory provides a higher-level interface for creating menu bars
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* and menus; while you can construct menus manually, most people don't
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* do that. There's a separate demo for GtkItemFactory.
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*
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*/
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#include <gtk/gtk.h>
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#include <gdk/gdkkeysyms.h>
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#include <stdio.h>
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static GtkWidget *
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create_menu (gint depth,
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gboolean tearoff)
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{
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GtkWidget *menu;
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GtkWidget *menuitem;
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GSList *group;
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char buf[32];
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int i, j;
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if (depth < 1)
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return NULL;
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menu = gtk_menu_new ();
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group = NULL;
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if (tearoff)
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{
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menuitem = gtk_tearoff_menu_item_new ();
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
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gtk_widget_show (menuitem);
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}
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for (i = 0, j = 1; i < 5; i++, j++)
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{
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sprintf (buf, "item %2d - %d", depth, j);
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menuitem = gtk_radio_menu_item_new_with_label (group, buf);
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group = gtk_radio_menu_item_group (GTK_RADIO_MENU_ITEM (menuitem));
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
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gtk_widget_show (menuitem);
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if (i == 3)
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gtk_widget_set_sensitive (menuitem, FALSE);
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gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (depth - 1, TRUE));
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}
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return menu;
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}
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GtkWidget *
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do_menus (void)
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{
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static GtkWidget *window = NULL;
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GtkWidget *box1;
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GtkWidget *box2;
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GtkWidget *button;
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GtkWidget *optionmenu;
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GtkWidget *separator;
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if (!window)
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{
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GtkWidget *menubar;
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GtkWidget *menu;
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GtkWidget *menuitem;
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GtkAccelGroup *accel_group;
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_signal_connect (GTK_OBJECT (window), "destroy",
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GTK_SIGNAL_FUNC(gtk_widget_destroyed),
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&window);
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gtk_signal_connect (GTK_OBJECT (window), "delete-event",
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GTK_SIGNAL_FUNC (gtk_true),
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NULL);
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accel_group = gtk_accel_group_new ();
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gtk_accel_group_attach (accel_group, GTK_OBJECT (window));
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gtk_window_set_title (GTK_WINDOW (window), "menus");
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gtk_container_set_border_width (GTK_CONTAINER (window), 0);
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box1 = gtk_vbox_new (FALSE, 0);
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gtk_container_add (GTK_CONTAINER (window), box1);
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gtk_widget_show (box1);
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menubar = gtk_menu_bar_new ();
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gtk_box_pack_start (GTK_BOX (box1), menubar, FALSE, TRUE, 0);
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gtk_widget_show (menubar);
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menu = create_menu (2, TRUE);
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menuitem = gtk_menu_item_new_with_label ("test\nline2");
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gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), menu);
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gtk_menu_bar_append (GTK_MENU_BAR (menubar), menuitem);
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gtk_widget_show (menuitem);
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menuitem = gtk_menu_item_new_with_label ("foo");
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gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (3, TRUE));
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gtk_menu_bar_append (GTK_MENU_BAR (menubar), menuitem);
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gtk_widget_show (menuitem);
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menuitem = gtk_menu_item_new_with_label ("bar");
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gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (4, TRUE));
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gtk_menu_item_right_justify (GTK_MENU_ITEM (menuitem));
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gtk_menu_bar_append (GTK_MENU_BAR (menubar), menuitem);
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gtk_widget_show (menuitem);
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box2 = gtk_vbox_new (FALSE, 10);
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gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
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gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);
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gtk_widget_show (box2);
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menu = create_menu (1, FALSE);
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gtk_menu_set_accel_group (GTK_MENU (menu), accel_group);
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menuitem = gtk_separator_menu_item_new ();
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
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gtk_widget_show (menuitem);
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menuitem = gtk_check_menu_item_new_with_label ("Accelerate Me");
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
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gtk_widget_show (menuitem);
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gtk_widget_add_accelerator (menuitem,
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"activate",
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accel_group,
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GDK_F1,
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0,
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GTK_ACCEL_VISIBLE | GTK_ACCEL_SIGNAL_VISIBLE);
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menuitem = gtk_check_menu_item_new_with_label ("Accelerator Locked");
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
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gtk_widget_show (menuitem);
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gtk_widget_add_accelerator (menuitem,
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"activate",
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accel_group,
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GDK_F2,
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0,
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GTK_ACCEL_VISIBLE | GTK_ACCEL_LOCKED);
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menuitem = gtk_check_menu_item_new_with_label ("Accelerators Frozen");
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
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gtk_widget_show (menuitem);
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gtk_widget_add_accelerator (menuitem,
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"activate",
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accel_group,
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GDK_F2,
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0,
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GTK_ACCEL_VISIBLE);
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gtk_widget_add_accelerator (menuitem,
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"activate",
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accel_group,
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GDK_F3,
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0,
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GTK_ACCEL_VISIBLE);
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gtk_widget_lock_accelerators (menuitem);
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optionmenu = gtk_option_menu_new ();
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gtk_option_menu_set_menu (GTK_OPTION_MENU (optionmenu), menu);
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gtk_option_menu_set_history (GTK_OPTION_MENU (optionmenu), 3);
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gtk_box_pack_start (GTK_BOX (box2), optionmenu, TRUE, TRUE, 0);
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gtk_widget_show (optionmenu);
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separator = gtk_hseparator_new ();
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gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);
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gtk_widget_show (separator);
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box2 = gtk_vbox_new (FALSE, 10);
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gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
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gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);
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gtk_widget_show (box2);
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button = gtk_button_new_with_label ("close");
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gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
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GTK_SIGNAL_FUNC(gtk_widget_destroy),
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GTK_OBJECT (window));
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gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
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GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
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gtk_widget_grab_default (button);
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gtk_widget_show (button);
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}
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if (!GTK_WIDGET_VISIBLE (window))
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{
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gtk_widget_show (window);
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}
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else
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{
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gtk_widget_destroy (window);
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window = NULL;
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}
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return window;
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}
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