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 : public sigc::trackable
  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 that is the AutomationTimeAxisView that we are on */
  56         TimeAxisView& trackview;
  57         /** TimeAxisView that we are a ghost for */
  58         TimeAxisView& source_trackview;
  59         ArdourCanvas::Group* group;
  60         ArdourCanvas::SimpleRect* base_rect;
  61
  62         static PBD::Signal1<void,GhostRegion*> CatchDeletion;
  63 };
  64
  65 class AudioGhostRegion : public GhostRegion {
  66 public:
  67         AudioGhostRegion(TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos);
  68
  69         void set_samples_per_unit(double spu);
  70         void set_height();
  71         void set_colors();
  72
  73         std::vector<ArdourCanvas::WaveView*> waves;
  74 };
  75
  76 class MidiGhostRegion : public GhostRegion {
  77 public:
  78         class Event : public sigc::trackable {
  79         public:
  80                 Event(ArdourCanvas::CanvasNoteEvent*);
  81                 virtual ~Event() {}
  82
  83                 ArdourCanvas::CanvasNoteEvent* event;
  84         };
  85
  86         class Note : public Event {
  87         public:
  88                 Note(ArdourCanvas::CanvasNote*, ArdourCanvas::Group*);
  89                 ~Note();
  90
  91                 ArdourCanvas::SimpleRect* rect;
  92         };
  93
  94         MidiGhostRegion(TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos);
  95         MidiGhostRegion(MidiStreamView& msv, TimeAxisView& source_tv, double initial_unit_pos);
  96         ~MidiGhostRegion();
  97
  98         MidiStreamView* midi_view();
  99
 100         void set_height();
 101         void set_samples_per_unit(double spu);
 102         void set_colors();
 103
 104         void update_range();
 105
 106         void add_note(ArdourCanvas::CanvasNote*);
 107         void update_note (ArdourCanvas::CanvasNote *);
 108
 109         void clear_events();
 110
 111 private:
 112
 113         MidiGhostRegion::Event* find_event (ArdourCanvas::CanvasNote *);
 114
 115         typedef std::list<MidiGhostRegion::Event*> EventList;
 116         EventList events;
 117         EventList::iterator _optimization_iterator;
 118 };
 119
 120 #endif /* __ardour_gtk_ghost_region_h__ */