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/* example-start menu menu.c */
#include <gtk/gtk.h>
static gint button_press (GtkWidget *, GdkEvent *);
static void menuitem_response (gchar *);
int main( int argc,
char *argv[] )
{
GtkWidget *window;
GtkWidget *menu;
GtkWidget *menu_bar;
GtkWidget *root_menu;
GtkWidget *menu_items;
GtkWidget *vbox;
GtkWidget *button;
char buf[128];
int i;
gtk_init (&argc, &argv);
/* create a new window */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_widget_set_usize (GTK_WIDGET (window), 200, 100);
gtk_window_set_title (GTK_WINDOW (window), "GTK Menu Test");
gtk_signal_connect (GTK_OBJECT (window), "delete_event",
(GtkSignalFunc) gtk_main_quit, NULL);
/* Init the menu-widget, and remember -- never
* gtk_show_widget() the menu widget!!
* This is the menu that holds the menu items, the one that
* will pop up when you click on the "Root Menu" in the app */
menu = gtk_menu_new ();
/* Next we make a little loop that makes three menu-entries for "test-menu".
* Notice the call to gtk_menu_append. Here we are adding a list of
* menu items to our menu. Normally, we'd also catch the "clicked"
* signal on each of the menu items and setup a callback for it,
* but it's omitted here to save space. */
for (i = 0; i < 3; i++)
{
/* Copy the names to the buf. */
sprintf (buf, "Test-undermenu - %d", i);
/* Create a new menu-item with a name... */
menu_items = gtk_menu_item_new_with_label (buf);
/* ...and add it to the menu. */
gtk_menu_append (GTK_MENU (menu), menu_items);
/* Do something interesting when the menuitem is selected */
gtk_signal_connect_object (GTK_OBJECT (menu_items), "activate",
GTK_SIGNAL_FUNC (menuitem_response), (gpointer) g_strdup (buf));
/* Show the widget */
gtk_widget_show (menu_items);
}
/* This is the root menu, and will be the label
* displayed on the menu bar. There won't be a signal handler attached,
* as it only pops up the rest of the menu when pressed. */
root_menu = gtk_menu_item_new_with_label ("Root Menu");
gtk_widget_show (root_menu);
/* Now we specify that we want our newly created "menu" to be the menu
* for the "root menu" */
gtk_menu_item_set_submenu (GTK_MENU_ITEM (root_menu), menu);
/* A vbox to put a menu and a button in: */
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_widget_show (vbox);
/* Create a menu-bar to hold the menus and add it to our main window */
menu_bar = gtk_menu_bar_new ();
gtk_box_pack_start (GTK_BOX (vbox), menu_bar, FALSE, FALSE, 2);
gtk_widget_show (menu_bar);
/* Create a button to which to attach menu as a popup */
button = gtk_button_new_with_label ("press me");
gtk_signal_connect_object (GTK_OBJECT (button), "event",
GTK_SIGNAL_FUNC (button_press), GTK_OBJECT (menu));
gtk_box_pack_end (GTK_BOX (vbox), button, TRUE, TRUE, 2);
gtk_widget_show (button);
/* And finally we append the menu-item to the menu-bar -- this is the
* "root" menu-item I have been raving about =) */
gtk_menu_bar_append (GTK_MENU_BAR (menu_bar), root_menu);
/* always display the window as the last step so it all splashes on
* the screen at once. */
gtk_widget_show (window);
gtk_main ();
return(0);
}
/* Respond to a button-press by posting a menu passed in as widget.
*
* Note that the "widget" argument is the menu being posted, NOT
* the button that was pressed.
*/
static gint button_press( GtkWidget *widget,
GdkEvent *event )
{
if (event->type == GDK_BUTTON_PRESS) {
GdkEventButton *bevent = (GdkEventButton *) event;
gtk_menu_popup (GTK_MENU (widget), NULL, NULL, NULL, NULL,
bevent->button, bevent->time);
/* Tell calling code that we have handled this event; the buck
* stops here. */
return TRUE;
}
/* Tell calling code that we have not handled this event; pass it on. */
return FALSE;
}
/* Print a string when a menu item is selected */
static void menuitem_response( gchar *string )
{
printf ("%s\n", string);
}
/* example-end */
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