# Εργαλειοθήκη (Vala)

Tiffany Antopolski
tiffany.antopolski@gmail.com 2012
Γραμμή κουμπιών
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

# Εργαλειοθήκη

Η εργαλειοθήκη μπορεί να περιέχει είτε κείμενο ή εικονίδια παρακαταθήκης. Σε αυτό το παράδειγμα χρησιμοποιούμε εικονίδια παρακαταθήκης. Αυτό το παράδειγμα έχει λειτουργικότητα πλήρους οθόνης.

Αυτό το παράδειγμα χρησιμοποιεί SimpleActions (παράθυρο και εφαρμογή). Οι ενέργειες της εφαρμογής μπορούν εύκολα να προστεθούν στο μενού της εφαρμογής.

/* This is the Window */ class MyWindow : Gtk.ApplicationWindow {

/* Instance variables belonging to the window */ Gtk.Toolbar toolbar; Gtk.ToolButton new_button; Gtk.ToolButton open_button; Gtk.ToolButton undo_button; Gtk.ToolButton fullscreen_button; Gtk.ToolButton leave_fullscreen_button;

/* Constructor */ internal MyWindow (MyApplication app) { Object (application: app, title: "Toolbar Example");

this.set_default_size (400, 200); var grid = new Gtk.Grid (); this.add (grid); grid.show ();

create_toolbar (); toolbar.set_hexpand (true); grid.attach (toolbar, 0, 0, 1, 1); toolbar.show ();

/* create the "undo" window action action */ var undo_action = new SimpleAction ("undo", null); undo_action.activate.connect (undo_callback); this.add_action (undo_action);

/* create the "fullscreen" window action */ var fullscreen_action = new SimpleAction ("fullscreen", null); fullscreen_action.activate.connect (fullscreen_callback); this.add_action (fullscreen_action); }

/* This function creates the toolbar, its ToolButtons, * and assigns the actions names to the ToolButtons.*/ void create_toolbar () { toolbar = new Gtk.Toolbar (); toolbar.get_style_context ().add_class (Gtk.STYLE_CLASS_PRIMARY_TOOLBAR);

new_button = new Gtk.ToolButton.from_stock (Gtk.Stock.NEW); new_button.is_important = true; //decides whether to show the label toolbar.add (new_button); new_button.show (); new_button.action_name = "app.new";

open_button = new Gtk.ToolButton.from_stock (Gtk.Stock.OPEN); open_button.is_important = true; toolbar.add (open_button); open_button.show (); open_button.action_name = "app.open";

undo_button = new Gtk.ToolButton.from_stock (Gtk.Stock.UNDO); undo_button.is_important = true; toolbar.add (undo_button); undo_button.show (); undo_button.action_name = "win.undo";

fullscreen_button = new Gtk.ToolButton.from_stock (Gtk.Stock.FULLSCREEN); fullscreen_button.is_important = true; toolbar.add (fullscreen_button); fullscreen_button.show (); fullscreen_button.action_name = "win.fullscreen";

leave_fullscreen_button = new Gtk.ToolButton.from_stock (Gtk.Stock.LEAVE_FULLSCREEN) ; leave_fullscreen_button.is_important = true; toolbar.add (leave_fullscreen_button);

leave_fullscreen_button.action_name = "win.fullscreen"; }

void undo_callback (SimpleAction simple, Variant? parameter) { print ("You clicked \"Undo\".\n"); }

void fullscreen_callback (SimpleAction simple, Variant? parameter) { if ((this.get_window ().get_state () & Gdk.WindowState.FULLSCREEN) != 0) { this.unfullscreen (); leave_fullscreen_button.hide (); fullscreen_button.show (); } else { this.fullscreen (); fullscreen_button.hide (); leave_fullscreen_button.show (); } } }

/* This is the application */ class MyApplication : Gtk.Application { protected override void activate () { new MyWindow (this).show (); }

protected override void startup () { base.startup ();

/* Create the "new" action and add it to the app*/ var new_action = new SimpleAction ("new", null); new_action.activate.connect (new_callback); this.add_action (new_action);

/* Create the "open" action, and add it to the app */ var open_action = new SimpleAction ("open", null); open_action.activate.connect (open_callback); this.add_action (open_action);

/* You could also add the action to the app menu * if you wanted to. */ //var menu = new Menu (); //menu.append ("New", "app.new"); //this.app_menu = menu; }

void new_callback (SimpleAction action, Variant? parameter) { print ("You clicked \"New\".\n"); }

void open_callback (SimpleAction action, Variant? parameter) { print ("You clicked \"Open\".\n"); } }

/* The main function creates the application and runs it. */ int main (string[] args) { return new MyApplication ().run (args); }

Σε αυτό το παράδειγμα χρησιμοποιήσαμε τα παρακάτω:

Gtk.Toolbar

Gtk.Toolbutton

Gtk.Stock