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livetrax/gtk2_ardour/tempo_lines.h

53 lines
1.8 KiB
C++

/*
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 "ardour/beats_samples_converter.h"
#include "ardour/tempo.h"
#include "canvas/line_set.h"
class TempoLines {
public:
TempoLines (ArdourCanvas::Container* group, double screen_height, ARDOUR::BeatsSamplesConverter* bfc);
~TempoLines ();
void tempo_map_changed(samplepos_t new_origin);
void draw (std::vector<ARDOUR::TempoMap::BBTPoint>& grid,
unsigned divisions,
ARDOUR::samplecnt_t leftmost_sample,
ARDOUR::samplecnt_t sample_rate);
void show();
void hide();
private:
void draw_ticks (std::vector<ARDOUR::TempoMap::BBTPoint>& grid,
unsigned divisions,
ARDOUR::samplecnt_t leftmost_sample,
ARDOUR::samplecnt_t sample_rate);
ArdourCanvas::LineSet lines;
ARDOUR::BeatsSamplesConverter* _bfc;
};
#endif /* __ardour_tempo_lines_h__ */