Accelerators can be confusing. There are 2 ways to do them, one
reasonably well documented, the other not documented at all (AFAIK).
Here is a sample of the undocumented (and really more complicated) way.
HTH
I have removed some redundant code, but this should show you the basic
steps.
Chuck Crisler
class HelloWorld : public Gtk::Window
{
public:
HelloWorld();
virtual ~HelloWorld();
protected:
//Signal Handlers
virtual void on_button_clicked();
virtual void on_fileopen_activated();
virtual void on_fileclose_activated();
...
//Member widgets.
Gtk::Button m_button;
Gtk::VBox m_VBox;
Gtk::MenuBar m_MainMenu;
Gtk::Menu m_FileMenu;
Gtk::Menu m_EditMenu;
Gtk::MenuItem m_RootMenu1;
Gtk::MenuItem m_RootMenu2;
Gtk::MenuItem m_FileOpenItem;
Gtk::MenuItem m_FileCloseItem;
...
Glib::RefPtr<Gtk::AccelGroup> m_oAccelGroup;
};
HelloWorld::HelloWorld() : m_button(Gtk::Stock::OK)
{
//Set border width for window
set_border_width( 10 );
set_title( "Menu Test Window" );
// Create the accelerator group for the window.
m_oAccelGroup = Gtk::AccelGroup::create( );
// Add that group to the window so that accelerators can be added.
add_accel_group( m_oAccelGroup );
Glib::ustring strAccelSignal = "activate";
...
// Setup the file menu options.
m_FileOpenItem.add_label("Open", false, Gtk::ALIGN_LEFT,
Gtk::ALIGN_TOP);
m_FileCloseItem.add_label("Close", false, Gtk::ALIGN_LEFT,
Gtk::ALIGN_TOP);
...
m_FileExit.signal_activate().connect(sigc::mem_fun(*this,
&HelloWorld::on_fileexit_activated));
// Setup the accelerators
m_FileOpenItem.add_accelerator( strAccelSignal, m_oAccelGroup, GDK_O,
Gdk::CONTROL_MASK, Gtk::ACCEL_MASK );
m_FileCloseItem.add_accelerator( strAccelSignal, m_oAccelGroup, GDK_C,
Gdk::CONTROL_MASK, Gtk::ACCEL_MASK );
...
m_FileMenu.append(m_FileOpenItem);
m_FileMenu.append(m_FileCloseItem);
...
m_RootMenu1.add_label("File", false, Gtk::ALIGN_LEFT, Gtk::ALIGN_TOP);
m_RootMenu2.add_label("Edit", false, Gtk::ALIGN_LEFT, Gtk::ALIGN_TOP);
m_RootMenu1.set_submenu(m_FileMenu);
m_RootMenu2.set_submenu(m_EditMenu);
m_RootMenu1.show();
m_RootMenu2.show();
m_MainMenu.append(m_RootMenu1);
m_MainMenu.append(m_RootMenu2);
m_MainMenu.show();
m_VBox.add(m_MainMenu);
...
m_Window.set_size_request( 780, 550 );
m_Window.show();
m_VBox.add(m_Window);
m_VBox.show();
add(m_VBox);
set_default_size( 800, 600 );
show_all_children();
show();
}
...
void HelloWorld::on_fileopen_activated()
{
std::cout << "Hello World! FileOpen activated." << std::endl;
}
void HelloWorld::on_fileclose_activated()
{
std::cout << "Hello World! FileClose activated." << std::endl;
}
void HelloWorld::on_fileexit_activated()
{
std::cout << "Hello World! FileExit activated." << std::endl;
// Terminate the application.
Gtk::Main::quit();
}
...
int main(int argc, char *argv[])
{
Gtk::Main kit(argc, argv);
HelloWorld helloworld;
//Shows the window and returns when it is closed.
Gtk::Main::run();
return (0);
}
On Mon, 2009-05-25 at 10:41 -0400, dhk wrote:
> Are accelerators only for menu items? I've seen a lot of examples with
> accelerators and the all seem to connect to a menu item. I've been
> having a difficult time getting accelerators to work even with the
> examples. I think I'm missing something.
>
> One thing I would like is to just have an accelerator execute a function
> or a callback. Maybe if I could just print "Hello World" to the
> terminal when pressing Alt-F4 would help prove the concept.
>
> Can someone help?
>
> Thanks,
>
> dhk
> _______________________________________________
> gtk-app-devel-list mailing list
> gtk-app-devel-list@gnome.org
> http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
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