gtk2_ardour/control_point.h

   1 /*
   2     Copyright (C) 2002-2007 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_control_point_h__
  21 #define __ardour_control_point_h__
  22
  23 #include <sys/types.h>
  24
  25 #include "ardour/automation_list.h"
  26
  27 #include "canvas.h"
  28 #include "simplerect.h"
  29 #include "selectable.h"
  30
  31 class AutomationLine;
  32 class ControlPoint;
  33 class PointSelection;
  34 class TimeAxisView;
  35 class AutomationTimeAxisView;
  36 class Selectable;
  37 class Selection;
  38
  39 namespace Gnome {
  40         namespace Canvas {
  41                 class SimpleRect;
  42                 class Diamond;
  43         }
  44 }
  45
  46 class ControlPoint : public Selectable
  47 {
  48   public:
  49         ControlPoint (AutomationLine& al);
  50         ControlPoint (const ControlPoint&, bool dummy_arg_to_force_special_copy_constructor);
  51         virtual ~ControlPoint ();
  52
  53         enum ShapeType {
  54                 Full,
  55                 Start,
  56                 End
  57         };
  58
  59         void move_to (double x, double y, ShapeType);
  60         void reset (double x, double y, ARDOUR::AutomationList::iterator, uint32_t, ShapeType);
  61         double get_x() const { return _x; }
  62         double get_y() const { return _y; }
  63
  64         void hide ();
  65         void show ();
  66         void set_color ();
  67
  68         double size () const {
  69                 return _size;
  70         }
  71
  72         void set_size (double);
  73         void set_visible (bool);
  74         bool visible () const;
  75
  76         bool     can_slide() const          { return _can_slide; }
  77         void     set_can_slide(bool yn)     { _can_slide = yn; }
  78         uint32_t view_index() const         { return _view_index; }
  79         void     set_view_index(uint32_t i) { _view_index = i; }
  80
  81         void i2w (double &, double &) const;
  82
  83         ARDOUR::AutomationList::iterator model() const { return _model; }
  84         AutomationLine&                  line()  const { return _line; }
  85
  86   private:
  87         ArdourCanvas::SimpleRect* _item;
  88
  89         AutomationLine& _line;
  90
  91         ARDOUR::AutomationList::iterator _model;
  92         uint32_t _view_index;
  93         bool     _can_slide;
  94
  95         virtual bool event_handler (GdkEvent*);
  96
  97         double    _x;
  98         double    _y;
  99         double    _size;
 100         ShapeType _shape;
 101 };
 102
 103
 104 #endif /* __ardour_control_point_h__ */
 105