gtk2_ardour/streamview.h

   1 /*
   2     Copyright (C) 2001, 2006 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 #ifndef __ardour_streamview_h__
  20 #define __ardour_streamview_h__
  21
  22 #include <list>
  23 #include <cmath>
  24
  25 #include "ardour/location.h"
  26 #include "enums.h"
  27 #include "simplerect.h"
  28 #include "canvas.h"
  29
  30 namespace Gdk {
  31         class Color;
  32 }
  33
  34 namespace ARDOUR {
  35         class Route;
  36         class Diskstream;
  37         class Crossfade;
  38         class PeakData;
  39         class Region;
  40         class Source;
  41 }
  42
  43 struct RecBoxInfo {
  44         ArdourCanvas::SimpleRect* rectangle;
  45         nframes_t                 start;
  46         nframes_t                 length;
  47 };
  48
  49 class Selectable;
  50 class RouteTimeAxisView;
  51 class RegionView;
  52 class RegionSelection;
  53 class CrossfadeView;
  54 class Selection;
  55
  56 class StreamView : public sigc::trackable
  57 {
  58 public:
  59         virtual ~StreamView ();
  60
  61         RouteTimeAxisView&       trackview()       { return _trackview; }
  62         const RouteTimeAxisView& trackview() const { return _trackview; }
  63
  64         void attach ();
  65
  66         void set_zoom_all();
  67
  68         int set_position (gdouble x, gdouble y);
  69         virtual int set_height (double);
  70
  71         virtual int set_samples_per_unit (gdouble spp);
  72         gdouble     get_samples_per_unit () { return _samples_per_unit; }
  73
  74         void set_layer_display (LayerDisplay);
  75         LayerDisplay layer_display () const { return _layer_display; }
  76
  77         ArdourCanvas::Group* background_group() { return _background_group; }
  78         ArdourCanvas::Group* canvas_item() { return canvas_group; }
  79
  80         enum ColorTarget {
  81                 RegionColor,
  82                 StreamBaseColor
  83         };
  84
  85         Gdk::Color get_region_color () const { return region_color; }
  86         void       apply_color (Gdk::Color&, ColorTarget t);
  87
  88         RegionView*  find_view (boost::shared_ptr<const ARDOUR::Region>);
  89         void         foreach_regionview (sigc::slot<void,RegionView*> slot);
  90
  91         void set_selected_regionviews (RegionSelection&);
  92         void get_selectables (nframes_t, nframes_t, double, double, std::list<Selectable* >&);
  93         void get_inverted_selectables (Selection&, std::list<Selectable* >& results);
  94
  95         virtual void update_contents_metrics(boost::shared_ptr<ARDOUR::Region>) {}
  96
  97         void add_region_view_weak (boost::weak_ptr<ARDOUR::Region> r);
  98         void add_region_view (boost::shared_ptr<ARDOUR::Region>);
  99
 100         void region_layered (RegionView*);
 101         virtual void update_contents_height ();
 102
 103         virtual void redisplay_diskstream () = 0;
 104         double child_height () const;
 105         ARDOUR::layer_t layers () const { return _layers; }
 106
 107         virtual RegionView* create_region_view (boost::shared_ptr<ARDOUR::Region>, bool, bool) {
 108                 return 0;
 109         }
 110
 111         sigc::signal<void,RegionView*> RegionViewAdded;
 112         sigc::signal<void> HeightChanged;
 113
 114 protected:
 115         StreamView (RouteTimeAxisView&, ArdourCanvas::Group* group = NULL);
 116
 117         void         transport_changed();
 118         void         transport_looped();
 119         void         rec_enable_changed();
 120         void         sess_rec_enable_changed();
 121         virtual void setup_rec_box () = 0;
 122         void         update_rec_box ();
 123
 124         virtual RegionView* add_region_view_internal (boost::shared_ptr<ARDOUR::Region>,
 125                       bool wait_for_waves, bool recording = false) = 0;
 126         virtual void remove_region_view (boost::weak_ptr<ARDOUR::Region> );
 127
 128         void         display_diskstream (boost::shared_ptr<ARDOUR::Diskstream>);
 129         virtual void undisplay_diskstream ();
 130         void         diskstream_changed ();
 131         void         layer_regions ();
 132
 133         virtual void playlist_changed_weak (boost::weak_ptr<ARDOUR::Diskstream>);
 134         virtual void playlist_changed (boost::shared_ptr<ARDOUR::Diskstream>);
 135         virtual void playlist_modified_weak (boost::weak_ptr<ARDOUR::Diskstream>);
 136         virtual void playlist_modified (boost::shared_ptr<ARDOUR::Diskstream>);
 137
 138         virtual void color_handler () = 0;
 139
 140         RouteTimeAxisView&        _trackview;
 141         bool                      owns_canvas_group;
 142         ArdourCanvas::Group*      _background_group;
 143         ArdourCanvas::Group*      canvas_group;
 144         ArdourCanvas::SimpleRect* canvas_rect; /* frame around the whole thing */
 145
 146         typedef std::list<RegionView* > RegionViewList;
 147         RegionViewList  region_views;
 148
 149         double _samples_per_unit;
 150
 151         sigc::connection       screen_update_connection;
 152         std::vector<RecBoxInfo>     rec_rects;
 153         std::list< std::pair<boost::shared_ptr<ARDOUR::Region>,RegionView* > > rec_regions;
 154         bool                   rec_updating;
 155         bool                   rec_active;
 156         bool                   use_rec_regions;
 157
 158         Gdk::Color region_color;      ///< Contained region color
 159         uint32_t   stream_base_color; ///< Background color
 160
 161         std::vector<sigc::connection> playlist_connections;
 162         sigc::connection         playlist_change_connection;
 163
 164         ARDOUR::layer_t _layers;
 165         LayerDisplay    _layer_display;
 166
 167         double height;
 168
 169         std::list<sigc::connection> rec_data_ready_connections;
 170         nframes_t                   last_rec_data_frame;
 171
 172 private:
 173         void update_coverage_frames ();
 174 };
 175
 176 #endif /* __ardour_streamview_h__ */
 177