gtk2_ardour/region_gain_line.h

   1 /*
   2     Copyright (C) 2000-2007 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifndef __ardour_gtk_region_gain_line_h__
  21 #define __ardour_gtk_region_gain_line_h__
  22
  23 #include <ardour/ardour.h>
  24 #include <libgnomecanvasmm.h>
  25
  26 #include "automation_line.h"
  27
  28 namespace ARDOUR {
  29         class Session;
  30 }
  31
  32 class TimeAxisView;
  33 class AudioRegionView;
  34
  35 class AudioRegionGainLine : public AutomationLine
  36 {
  37   public:
  38   AudioRegionGainLine (const string & name, ARDOUR::Session&, AudioRegionView&, ArdourCanvas::Group& parent, ARDOUR::Curve&);
  39
  40         void view_to_model_y (double&);
  41         void model_to_view_y (double&);
  42
  43         void start_drag (ControlPoint*, nframes_t x, float fraction);
  44         void end_drag (ControlPoint*);
  45
  46         void remove_point (ControlPoint&);
  47
  48
  49   private:
  50         ARDOUR::Session& session;
  51         AudioRegionView& rv;
  52 };
  53
  54
  55 #endif /* __ardour_gtk_region_gain_line_h__ */