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