gtk2_ardour/ghostregion.h

   1 /*
   2     Copyright (C) 2004 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_ghost_region_h__
  21 #define __ardour_gtk_ghost_region_h__
  22
  23 #include <vector>
  24 #include <libgnomecanvasmm.h>
  25 #include "pbd/signals.h"
  26 #include "canvas.h"
  27
  28 namespace Gnome {
  29         namespace Canvas {
  30                 class CanvasNoteEvent;
  31                 class CanvasNote;
  32                 class CanvasHit;
  33                 class Diamond;
  34         }
  35 }
  36
  37 class MidiStreamView;
  38 class TimeAxisView;
  39
  40 class GhostRegion
  41 {
  42 public:
  43         GhostRegion(ArdourCanvas::Group* parent, TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos);
  44         virtual ~GhostRegion();
  45
  46         virtual void set_samples_per_unit(double spu) = 0;
  47         virtual void set_height();
  48         virtual void set_colors();
  49
  50         void set_duration(double units);
  51
  52         guint source_track_color(unsigned char alpha = 0xff);
  53         bool is_automation_ghost();
  54
  55         TimeAxisView& trackview;
  56         TimeAxisView& source_trackview;
  57         ArdourCanvas::Group* group;
  58         ArdourCanvas::SimpleRect* base_rect;
  59
  60         static PBD::Signal1<void,GhostRegion*> CatchDeletion;
  61 };
  62
  63 class AudioGhostRegion : public GhostRegion {
  64 public:
  65         AudioGhostRegion(TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos);
  66
  67         void set_samples_per_unit(double spu);
  68         void set_height();
  69         void set_colors();
  70
  71         std::vector<ArdourCanvas::WaveView*> waves;
  72 };
  73
  74 class MidiGhostRegion : public GhostRegion {
  75 public:
  76         class Event : public sigc::trackable {
  77         public:
  78                 Event(ArdourCanvas::CanvasNoteEvent*);
  79                 virtual ~Event() {}
  80
  81                 virtual void x_changed() = 0;
  82                 ArdourCanvas::CanvasNoteEvent* event;
  83         };
  84
  85         class Note : public Event {
  86         public:
  87                 Note(ArdourCanvas::CanvasNote*, ArdourCanvas::Group*);
  88                 ~Note();
  89
  90                 void x_changed();
  91                 ArdourCanvas::SimpleRect* rect;
  92         };
  93
  94         class Hit : public Event {
  95         public:
  96                 Hit(ArdourCanvas::CanvasHit*, ArdourCanvas::Group*);
  97                 ~Hit();
  98
  99                 void x_changed();
 100                 ArdourCanvas::Diamond* diamond;
 101         };
 102
 103         MidiGhostRegion(TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos);
 104         MidiGhostRegion(MidiStreamView& msv, TimeAxisView& source_tv, double initial_unit_pos);
 105         ~MidiGhostRegion();
 106
 107         MidiStreamView* midi_view();
 108
 109         void set_height();
 110         void set_samples_per_unit(double spu);
 111         void set_colors();
 112
 113         void update_range();
 114
 115         void add_note(ArdourCanvas::CanvasNote*);
 116         void add_hit(ArdourCanvas::CanvasHit*);
 117
 118         void clear_events();
 119
 120         typedef std::list<MidiGhostRegion::Event*> EventList;
 121         EventList events;
 122 };
 123
 124 #endif /* __ardour_gtk_ghost_region_h__ */