# CheckButton (Vala)

Tiffany Antopolski
tiffany.antopolski@gmail.com 2012
Créer des éléments graphiques avec un bouton d'inversion discret

# CaseAcocher

Cette CaseAcocher inverse le titre.

/* 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); }

Dans cet exemple, les éléments suivants sont utilisés :

Gtk.CheckButton