livetrax/gtk2_ardour/region_gain_line.h

/*
    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_gtk_region_gain_line_h__
#define __ardour_gtk_region_gain_line_h__

#include <ardour/ardour.h>
#include <libgnomecanvasmm.h>

#include "automation_line.h"

namespace ARDOUR {
	class Session;
}

class TimeAxisView;
class AudioRegionView;

class AudioRegionGainLine : public AutomationLine
{
  public:
  AudioRegionGainLine (const string & name, ARDOUR::Session&, AudioRegionView&, ArdourCanvas::Group& parent, boost::shared_ptr<ARDOUR::AutomationList>);
	
	void view_to_model_y (double&);
	void model_to_view_y (double&);

	void start_drag (ControlPoint*, nframes_t x, float fraction);
	void end_drag (ControlPoint*);

	void remove_point (ControlPoint&);


  private:
	ARDOUR::Session& session;
	AudioRegionView& rv;

	UndoAction get_memento();
};


#endif /* __ardour_gtk_region_gain_line_h__ */