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https://github.com/Ardour/ardour.git
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e24d1d069d
This new inheritance heirarchy lets us share (a very small piece of) code between streamviews in the Editor and the nascent piano roll object on the cue page.
55 lines
1.7 KiB
C++
55 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 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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