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/* A window in the application */
class MyWindow : Gtk.ApplicationWindow {
/* The constructor */
internal MyWindow (MyApplication app) {
Object (application: app, title: "CheckButton Example");
this.set_default_size (300, 100);
this.border_width = 10;
var checkbutton = new Gtk.CheckButton.with_label ("Show Title");
/* Connect the checkbutton to the
* callback function (aka. signal handler).
*/
checkbutton.toggled.connect (this.toggled_cb);
/* Add the button to the this window */
this.add (checkbutton);
checkbutton.set_active (true);
checkbutton.show ();
}
/* The signal handler for the 'toggled' signal of the checkbutton. */
void toggled_cb (Gtk.ToggleButton checkbutton) {
if (checkbutton.get_active())
this.set_title ("CheckButton Example");
else
this.set_title ("");
}
}
/* This is the application */
class MyApplication : Gtk.Application {
/* The constructor */
internal MyApplication () {
Object (application_id: "org.example.checkbutton");
}
/* Override the activate signal of GLib.Application */
protected override void activate () {
new MyWindow (this).show ();
}
}
/* main creates and runs the application */
int main (string[] args) {
return new MyApplication ().run (args);
}
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