Source code for this example is also available in the file tearoffmenu.c
/*
*File name: tearoffmenu.c
*/
#include <gtk/gtk.h>
#include <glib.h>
/*-- This function allows the program to exit properly when the window is closed --*/
gint destroyapp (GtkWidget *widget, gpointer gdata)
{
g_print ("Quitting...\n");
gtk_main_quit();
return (FALSE);
}
/*-- This function allows the program to exit properly when the window is closed --*/
gint ClosingAppWindow (GtkWidget *widget, gpointer gdata)
{
g_print ("Quitting...\n");
gtk_main_quit();
return (FALSE);
}
int main (int argc, char *argv[])
{
/*-- Declare the GTK Widgets used in the program --*/
GtkWidget *window;
GtkWidget *menuFile;
GtkWidget *menuEdit;
GtkWidget *menuView;
GtkWidget *menuHelp;
GtkWidget *menubar;
GtkWidget *menu;
GtkWidget *menuitem;
GtkWidget *vbox;
GtkWidget *text;
gchar *buffer = "Go to the file menu and select Exit to close the application.";
/*-- Initialize GTK --*/
gtk_init (&argc, &argv);
/*-- Create the new window --*/
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
/*-- Create the vbox --*/
vbox = gtk_vbox_new(FALSE, 0);
/*-- Create a text area --*/
text = gtk_text_new(NULL, NULL);
/*-- Set text area to be editable --*/
gtk_text_set_editable(GTK_TEXT (text), TRUE);
/*-- Connect the window to the destroyapp function --*/
gtk_signal_connect(GTK_OBJECT(window), "delete_event", GTK_SIGNAL_FUNC(destroyapp), NULL);
/*-- Create the menu bar --*/
menubar = gtk_menu_bar_new();
/*-- Add the menubar to the vbox --*/
gtk_box_pack_start(GTK_BOX(vbox), menubar, FALSE, TRUE, 0);
gtk_widget_show(menubar);
/*-- Add the text area to the window --*/
gtk_container_add(GTK_CONTAINER(vbox), text);
/*-- Add the vbox to the main window --*/
gtk_container_add(GTK_CONTAINER(window), vbox);
/*---------------- Create File menu items ------------------*/
menuFile = gtk_menu_item_new_with_label ("File");
gtk_menu_bar_append (GTK_MENU_BAR(menubar), menuFile);
gtk_widget_show(menuFile);
/*-- Create File submenu --*/
menu = gtk_menu_new();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuFile), menu);
/*-- Create New menu item under File submenu --*/
menuitem = gtk_menu_item_new_with_label ("New");
gtk_menu_append(GTK_MENU(menu), menuitem);
gtk_widget_show (menuitem);
/*-- Create Open menu item under File submenu --*/
menuitem = gtk_menu_item_new_with_label ("Open");
gtk_menu_append(GTK_MENU(menu), menuitem);
gtk_widget_show (menuitem);
/*-- Create Exit menu item under File submenu --*/
menuitem = gtk_menu_item_new_with_label ("Exit");
gtk_menu_append(GTK_MENU(menu), menuitem);
gtk_signal_connect(GTK_OBJECT (menuitem), "activate", GTK_SIGNAL_FUNC (ClosingAppWindow), NULL);
gtk_widget_show (menuitem);
/*---------------- End File menu declarations ----------------*/
/*---------------- Create Edit menu items --------------------*/
menuEdit = gtk_menu_item_new_with_label ("Edit");
gtk_menu_bar_append (GTK_MENU_BAR(menubar), menuEdit);
gtk_widget_show(menuEdit);
/*-- Create File submenu --*/
menu = gtk_menu_new();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuEdit), menu);
/*-- Create Undo menu item under Edit submenu --*/
menuitem = gtk_menu_item_new_with_label ("Undo");
gtk_menu_append(GTK_MENU(menu), menuitem);
gtk_widget_show (menuitem);
/*-- Create Copy menu item under File submenu --*/
menuitem = gtk_menu_item_new_with_label ("Copy");
gtk_menu_append(GTK_MENU(menu), menuitem);
gtk_widget_show (menuitem);
/*-- Create Cut menu item under File submenu --*/
menuitem = gtk_menu_item_new_with_label ("Cut");
gtk_menu_append(GTK_MENU(menu), menuitem);
gtk_widget_show (menuitem);
/*---------------- End Edit menu declarations ----------------*/
/*---------------- Create View menu items --------------------*/
menuView = gtk_menu_item_new_with_label ("View");
gtk_menu_bar_append (GTK_MENU_BAR(menubar), menuView);
gtk_widget_show(menuView);
/*-- Create View submenu --*/
menu = gtk_menu_new();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuView), menu);
/*-- Create tearoff menu item under File submenu --*/
menuitem = gtk_tearoff_menu_item_new();
gtk_menu_append(GTK_MENU(menu), menuitem);
gtk_widget_show (menuitem);
/*-- Create Refresh menu item under File submenu --*/
menuitem = gtk_menu_item_new_with_label ("Refresh");
gtk_menu_append(GTK_MENU(menu), menuitem);
gtk_widget_show (menuitem);
/*-- Create Menubar item under Edit submenu --*/
menuitem = gtk_check_menu_item_new_with_label ("View Menubar");
gtk_menu_append(GTK_MENU(menu), menuitem);
gtk_widget_show (menuitem);
/*-- Create Toolbar item under File submenu --*/
menuitem = gtk_check_menu_item_new_with_label ("View Toolbar");
gtk_menu_append(GTK_MENU(menu), menuitem);
gtk_widget_show (menuitem);
/*---------------- End Edit menu declarations ----------------*/
/*---------------- Start Help menu declarations ----------------*/
menuHelp = gtk_menu_item_new_with_label ("Help");
gtk_menu_bar_append (GTK_MENU_BAR(menubar), menuHelp);
gtk_widget_show(menuHelp);
/*-- Create Help submenu --*/
menu = gtk_menu_new();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuHelp), menu);
/*-- Create About menu item under Help submenu --*/
menuitem = gtk_menu_item_new_with_label ("About");
gtk_menu_append(GTK_MENU(menu), menuitem);
gtk_widget_show (menuitem);
/*---------------- End Help menu declarations ----------------*/
/*-- Add some text to the window --*/
gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL, buffer, strlen(buffer));
/*-- Set window border to zero so that text area takes up the whole window --*/
gtk_container_border_width (GTK_CONTAINER (window), 0);
/*-- Set the window to be 640 x 480 pixels --*/
gtk_window_set_default_size (GTK_WINDOW(window), 640, 200);
/*-- Set the window title --*/
gtk_window_set_title(GTK_WINDOW (window), "Menu");
/*-- Display the widgets --*/
gtk_widget_show(text);
gtk_widget_show(menuitem);
gtk_widget_show(menuFile);
gtk_widget_show(menuEdit);
gtk_widget_show(menuView);
gtk_widget_show(menuHelp);
gtk_widget_show(vbox);
gtk_widget_show(window);
/*-- Start the GTK event loop --*/
gtk_main();
/*-- Return 0 if exit is successful --*/
return 0;
}
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