58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
/*
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* Copyright (C) 2006-2014 David Robillard <d@drobilla.net>
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* Copyright (C) 2007 Doug McLain <doug@nostar.net>
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* Copyright (C) 2008-2017 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2009-2012 Carl Hetherington <carl@carlh.net>
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* Copyright (C) 2016-2017 Robin Gareus <robin@gareus.org>
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*
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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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*
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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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __gtk2_ardour_view_background_h__
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#define __gtk2_ardour_view_background_h__
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#include <cstdint>
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#include "gtkmm2ext/colors.h"
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namespace ArdourCanvas {
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class Item;
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}
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/** A class that provides limited context for a View
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*/
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class ViewBackground
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{
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public:
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ViewBackground ();
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virtual ~ViewBackground ();
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virtual double height() const { return 0.; }
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virtual double width() const { return 0.; }
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virtual double contents_height() const { return 0.; }
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/** @return y position, or -1 if hidden */
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virtual double y_position () const { return 0.; }
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protected:
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virtual void update_contents_height () {}
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virtual void color_handler () {}
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virtual void parameter_changed (std::string const &) {}
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};
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#endif /* __gtk2_ardour_view_background_h__ */
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