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/*
Copyright (C) 2013 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __libgtkmm2ext_visibility_tracker__
#define __libgtkmm2ext_visibility_tracker__
#include <gdk/gdkevents.h>
#include "gtkmm2ext/visibility.h"
namespace GTK {
class Window;
}
namespace Gtkmm2ext {
class LIBGTKMM2EXT_API VisibilityTracker : public virtual sigc::trackable {
public:
VisibilityTracker (Gtk::Window&);
virtual ~VisibilityTracker() {}
void cycle_visibility ();
bool fully_visible() const;
bool not_visible() const;
bool partially_visible() const;
Gtk::Window& window () const { return _window; }
private:
Gtk::Window& _window;
GdkVisibilityState _visibility;
bool handle_visibility_notify_event (GdkEventVisibility*);
};
}
#endif /* __libgtkmm2ext_visibility_tracker__ */
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