Whole document tree
| The GNOME Panel Libraries | |||
|---|---|---|---|
| <<< Previous Page | Home | Up | Next Page >>> |
The Applet's Context Menu
When the user right clicks on the applet, a menu appears, this is all handeled by the panel, so in order to add items to it you use a special interface to "add callbacks" to the menu. A very simple example would be (making our hello applet even more feature full):
Example 4. hello_applet with menu items
#include <config.h>
#include <applet-widget.h>
static void
hello_there (AppletWidget *applet, gpointer data)
{
g_print(_("Hello There"));
}
int
main (int argc, char **argv)
{
GtkWidget *applet;
GtkWidget *label;
/* Initialize the i18n stuff */
bindtextdomain (PACKAGE, GNOMELOCALEDIR);
textdomain (PACKAGE);
/* intialize, this will basically set up the applet, corba and
call gnome_init */
applet_widget_init("hello_applet", NULL, argc, argv, NULL, 0, NULL);
/* create a new applet_widget */
applet = applet_widget_new("hello_applet");
/* in the rare case that the communication with the panel
failed, error out */
if (!applet)
g_error("Can't create applet!\n");
/* create the widget we are going to put on the applet */
label = gtk_label_new(_("Hello There!"));
gtk_widget_show(label);
/* add the widget to the applet-widget, and thereby actually
putting it "onto" the panel */
applet_widget_add (APPLET_WIDGET (applet), label);
gtk_widget_show (applet);
/* add an item to the applet menu */
applet_widget_register_callback(APPLET_WIDGET(applet),
"hello",
_("Hello There"),
hello_there,
NULL);
/* special corba main loop */
applet_widget_gtk_main ();
return 0;
}
|
Now the user will see a "Hello There" menu item on the applet menu, and when selected, the applet will print "Hello There". Useful huh?
Note that the second argument to the register_callback is just a string identifier of this callback, and can really be whatever you want. But it should NOT be translated as the label (the 3rd argument) should be.