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