gtk2_ardour/boolean_automation_line.cc

   1 /*
   2     Copyright (C) 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 #include "boolean_automation_line.h"
  21 #include "time_axis_view.h"
  22 #include "public_editor.h"
  23
  24 using namespace std;
  25 using namespace sigc;
  26 using namespace ARDOUR;
  27 using namespace PBD;
  28
  29 void
  30 BooleanAutomationLine::model_to_view_y (double& y)
  31 {
  32         if (y > 0.5) {
  33                 y = 1.0;
  34         } else {
  35                 y = 0.0;
  36         }
  37 }
  38
  39 void
  40 BooleanAutomationLine::view_to_model_y (double& y)
  41 {
  42         if (y > 0.5) {
  43                 y = 1.0;
  44         } else {
  45                 y = 0.0;
  46         }
  47 }
  48
  49 void
  50 BooleanAutomationLine::add_model_point (AutomationLine::ALPoints& tmp_points, double frame, double yfract)
  51 {
  52         /* add two points, one to represent "on" and one to represent "off" */
  53
  54         double x = trackview.editor.frame_to_unit (frame);
  55
  56         tmp_points.push_back (ALPoint (x > 0 ? x - 1 : 0, _height > 4 ? 2 : 0));
  57         tmp_points.push_back (ALPoint (x + 1, _height > 2 ? _height - 2 : _height));
  58 }
  59