David Robillard
95d82d7a16
Tempo line updating done immediately/directly rather than in an idle handler. Looking for feedback how this works for other people, performance wise... Feel-wise, the obvious lag between scrolling and tempo lines being drawn is now gone. git-svn-id: svn://localhost/ardour2/branches/3.0@3799 d708f5d6-7413-0410-9779-e7cbd77b26cf
58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
/*
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Copyright (C) 2000-2007 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 __ardour_tempo_lines_h__
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#define __ardour_tempo_lines_h__
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#include <map>
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#include <boost/pool/pool.hpp>
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#include <boost/pool/pool_alloc.hpp>
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#include <ardour/tempo.h>
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#include "canvas.h"
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#include "simpleline.h"
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typedef boost::fast_pool_allocator<
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std::pair<double, ArdourCanvas::SimpleLine>,
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boost::default_user_allocator_new_delete,
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boost::details::pool::null_mutex,
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8192>
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MapAllocator;
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class TempoLines {
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public:
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TempoLines(ArdourCanvas::Canvas& canvas, ArdourCanvas::Group* group);
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void tempo_map_changed();
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void draw(ARDOUR::TempoMap::BBTPointList& points, double frames_per_unit);
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void show();
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void hide();
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private:
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typedef std::map<double, ArdourCanvas::SimpleLine*, std::less<double>, MapAllocator> Lines;
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Lines _lines;
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ArdourCanvas::Canvas& _canvas;
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ArdourCanvas::Group* _group;
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double _clean_left;
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double _clean_right;
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};
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#endif /* __ardour_tempo_lines_h__ */
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