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/*
* Copyright 2019 elementary, Inc. (https://elementary.io)
* Copyright 2011-2013 Maxwell Barvian <maxwell@elementaryos.org>
* SPDX-License-Identifier: LGPL-3.0-or-later
*/
using Gtk;
using Gdk;
namespace Granite.Widgets {
/**
* CompositedWindow is an invisible window without decorations or background.
*
* It is useful for handling different situations where the user has to
* "pick" something or select an area on the screen, although it can be used in other scenarios too.
* Most of the times the window will act as a surface to receive mouse / key press events from the user.
*
* CompositedWindow does not and will not try to set any default size. You are responsible to
* set it's size to e.g: the window's //screen// size to have the window cover the enire //screen// area.
*
* Note that you should provide a way for the user to exit the window since it's invisible.
* You can do that by connecting to {@link Gtk.Widget.key_press_event} signal and seeing if
* e.g: the user pressed an Escape key. You should always {@link Gtk.Widget.destroy} the window after
* it's not needed.
*
* Do not forget to call {@link Gtk.Widget.show_all} to actually start receiving events.
*/
[Version (deprecated = true, deprecated_since = "5.5.0", replacement = "Gtk.Window")]
public class CompositedWindow : Gtk.Window, Gtk.Buildable {
private const string STYLESHEET = ".composited { background-color: rgba (0,0,0,0); }";
construct {
// Window properties
app_paintable = true;
decorated = false;
resizable = false;
set_visual (get_screen ().get_rgba_visual ());
// Set up css provider
Utils.set_theming (
this,
STYLESHEET,
StyleClass.COMPOSITED,
Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION
);
}
}
}
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