/usr/share/gtk-3.0/demo/menus.c is in gtk-3-examples 3.4.2-0ubuntu0.9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 | /* Menus
*
* There are several widgets involved in displaying menus. The
* GtkMenuBar widget is a menu bar, which normally appears horizontally
* at the top of an application, but can also be layed out vertically.
* The GtkMenu widget is the actual menu that pops up. Both GtkMenuBar
* and GtkMenu are subclasses of GtkMenuShell; a GtkMenuShell contains
* menu items (GtkMenuItem). Each menu item contains text and/or images
* and can be selected by the user.
*
* There are several kinds of menu item, including plain GtkMenuItem,
* GtkCheckMenuItem which can be checked/unchecked, GtkRadioMenuItem
* which is a check menu item that's in a mutually exclusive group,
* GtkSeparatorMenuItem which is a separator bar, GtkTearoffMenuItem
* which allows a GtkMenu to be torn off, and GtkImageMenuItem which
* can place a GtkImage or other widget next to the menu text.
*
* A GtkMenuItem can have a submenu, which is simply a GtkMenu to pop
* up when the menu item is selected. Typically, all menu items in a menu bar
* have submenus.
*
* GtkUIManager provides a higher-level interface for creating menu bars
* and menus; while you can construct menus manually, most people don't
* do that. There's a separate demo for GtkUIManager.
*/
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <stdio.h>
static GtkWidget *
create_menu (gint depth)
{
GtkWidget *menu;
GtkWidget *menuitem;
GSList *group;
char buf[32];
int i, j;
if (depth < 1)
return NULL;
menu = gtk_menu_new ();
group = NULL;
for (i = 0, j = 1; i < 5; i++, j++)
{
sprintf (buf, "item %2d - %d", depth, j);
menuitem = gtk_radio_menu_item_new_with_label (group, buf);
group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (menuitem));
gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
gtk_widget_show (menuitem);
if (i == 3)
gtk_widget_set_sensitive (menuitem, FALSE);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (depth - 1));
}
return menu;
}
static void
change_orientation (GtkWidget *button,
GtkWidget *menubar)
{
GtkWidget *parent;
GtkOrientation orientation;
parent = gtk_widget_get_parent (menubar);
orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (parent));
gtk_orientable_set_orientation (GTK_ORIENTABLE (parent), 1 - orientation);
if (orientation == GTK_ORIENTATION_VERTICAL)
g_object_set (menubar, "pack-direction", GTK_PACK_DIRECTION_TTB, NULL);
else
g_object_set (menubar, "pack-direction", GTK_PACK_DIRECTION_LTR, NULL);
}
static GtkWidget *window = NULL;
GtkWidget *
do_menus (GtkWidget *do_widget)
{
GtkWidget *box;
GtkWidget *box1;
GtkWidget *box2;
GtkWidget *button;
if (!window)
{
GtkWidget *menubar;
GtkWidget *menu;
GtkWidget *menuitem;
GtkAccelGroup *accel_group;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_screen (GTK_WINDOW (window),
gtk_widget_get_screen (do_widget));
gtk_window_set_title (GTK_WINDOW (window), "Menus");
g_signal_connect (window, "destroy",
G_CALLBACK(gtk_widget_destroyed), &window);
accel_group = gtk_accel_group_new ();
gtk_window_add_accel_group (GTK_WINDOW (window), accel_group);
gtk_container_set_border_width (GTK_CONTAINER (window), 0);
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_container_add (GTK_CONTAINER (window), box);
gtk_widget_show (box);
box1 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (box), box1);
gtk_widget_show (box1);
menubar = gtk_menu_bar_new ();
gtk_box_pack_start (GTK_BOX (box1), menubar, FALSE, TRUE, 0);
gtk_widget_show (menubar);
menu = create_menu (2);
menuitem = gtk_menu_item_new_with_label ("test\nline2");
gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), menu);
gtk_menu_shell_append (GTK_MENU_SHELL (menubar), menuitem);
gtk_widget_show (menuitem);
menuitem = gtk_menu_item_new_with_label ("foo");
gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (3));
gtk_menu_shell_append (GTK_MENU_SHELL (menubar), menuitem);
gtk_widget_show (menuitem);
menuitem = gtk_menu_item_new_with_label ("bar");
gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (4));
gtk_menu_shell_append (GTK_MENU_SHELL (menubar), menuitem);
gtk_widget_show (menuitem);
box2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);
gtk_widget_show (box2);
button = gtk_button_new_with_label ("Flip");
g_signal_connect (button, "clicked",
G_CALLBACK (change_orientation), menubar);
gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
gtk_widget_show (button);
button = gtk_button_new_with_label ("Close");
g_signal_connect_swapped (button, "clicked",
G_CALLBACK(gtk_widget_destroy), window);
gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
gtk_widget_set_can_default (button, TRUE);
gtk_widget_grab_default (button);
gtk_widget_show (button);
}
if (!gtk_widget_get_visible (window))
{
gtk_widget_show (window);
}
else
{
gtk_widget_destroy (window);
window = NULL;
}
return window;
}
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