# Ραδιοπλήκτρο (RadioButton) (Vala)

Tiffany Antopolski
tiffany.antopolski@gmail.com 2012
Μια επιλογή από πολλαπλά πλήκτρα ελέγχου (CheckButtons).
Ελληνική μεταφραστική ομάδα GNOME
team@gnome.gr 2012-2015
Δημήτρης Σπίγγος
dmtrs32@gmail.com 2012, 2013
Μαρία Θουκιδίδου
marablack3@gmail.com 2014
Θάνος Τρυφωνίδης
tomtryf@gmail.com 2014, 2015

# Ράδιοπλήκτρο (RadioButton)

Αυτά τα ραδιοπλήκτρα αναφέρουν τη δραστηριότητά τους στο τερματικό.

public class MyWindow : Gtk.ApplicationWindow { internal MyWindow (MyApplication app) { Object (application: app, title: "RadioButton Example");

this.border_width = 20; this.set_default_size (250, 100);

/* We demonstrate 3 different RadioButton creation methods */

//Create a Radio Button var button1 = new Gtk.RadioButton (null); button1.set_label ("Button 1");

//Create a RadioButton with a label, and add it to the same group as button1. var button2 = new Gtk.RadioButton.with_label (button1.get_group(),"Button 2");

//Create a RadioButton with a label, adding it to button1's group. var button3 = new Gtk.RadioButton.with_label_from_widget (button1, "Button 3");

//Attach the buttons to a grid. var grid = new Gtk.Grid (); grid.attach (button1, 0, 0, 1, 1); grid.attach (button2, 0, 1, 1, 1); grid.attach (button3, 0, 2, 1, 1);

//Add the button to the window. this.add (grid);

//Connect the signal handlers (aka. callback functions) to the buttons. button1.toggled.connect (button_toggled_cb); button2.toggled.connect (button_toggled_cb); button3.toggled.connect (button_toggled_cb); }

void button_toggled_cb (Gtk.ToggleButton button) { var state = "unknown";

if (button.get_active ()) state = "on"; else { state = "off"; print ("\n"); } print (button.get_label() + " was turned " + state + "\n"); } }

public class MyApplication : Gtk.Application { protected override void activate () {

//Show all of the things. new MyWindow (this).show_all (); }

internal MyApplication () { Object (application_id: "org.example.MyApplication"); } }

public int main (string[] args) { return new MyApplication ().run (args); }

Σε αυτό το παράδειγμα χρησιμοποιήσαμε τα παρακάτω:

Gtk.RadioButton