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/*
Copyright (C) 2000-2007 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 __ardour_tempo_lines_h__
#define __ardour_tempo_lines_h__
#include <map>
#include <boost/pool/pool.hpp>
#include <boost/pool/pool_alloc.hpp>
#include "ardour/tempo.h"
#include "canvas.h"
#include "simpleline.h"
typedef boost::fast_pool_allocator<
std::pair<const double, ArdourCanvas::SimpleLine*>,
boost::default_user_allocator_new_delete,
boost::details::pool::null_mutex,
8192>
MapAllocator;
class TempoLines {
public:
TempoLines(ArdourCanvas::Canvas& canvas, ArdourCanvas::Group* group, double screen_height);
void tempo_map_changed();
void draw(const ARDOUR::TempoMap::BBTPointList::const_iterator& begin,
const ARDOUR::TempoMap::BBTPointList::const_iterator& end,
double frames_per_unit);
void show();
void hide();
private:
typedef std::map<double, ArdourCanvas::SimpleLine*, std::less<double>, MapAllocator> Lines;
Lines _lines;
ArdourCanvas::Canvas& _canvas;
ArdourCanvas::Group* _group;
double _clean_left;
double _clean_right;
double _height;
};
#endif /* __ardour_tempo_lines_h__ */
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