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 "pbd/signals.h"
  26
  27 #include "ardour/location.h"
  28 #include "enums.h"
  29 #include "simplerect.h"
  30 #include "canvas.h"
  31
  32 namespace Gdk {
  33         class Color;
  34 }
  35
  36 namespace ARDOUR {
  37         class Route;
  38         class Crossfade;
  39         class PeakData;
  40         class Region;
  41         class Source;
  42         class Track;
  43 }
  44
  45 struct RecBoxInfo {
  46         ArdourCanvas::SimpleRect*  rectangle;
  47         framepos_t                 start;
  48         ARDOUR::framecnt_t         length;
  49 };
  50
  51 class Selectable;
  52 class RouteTimeAxisView;
  53 class RegionView;
  54 class RegionSelection;
  55 class CrossfadeView;
  56 class Selection;
  57
  58 class StreamView : public sigc::trackable, public PBD::ScopedConnectionList
  59 {
  60 public:
  61         virtual ~StreamView ();
  62
  63         RouteTimeAxisView&       trackview()       { return _trackview; }
  64         const RouteTimeAxisView& trackview() const { return _trackview; }
  65
  66         void attach ();
  67
  68         void set_zoom_all();
  69
  70         int set_position (gdouble x, gdouble y);
  71         virtual int set_height (double);
  72
  73         virtual int set_samples_per_unit (gdouble spp);
  74         gdouble     get_samples_per_unit () { return _samples_per_unit; }
  75         virtual void horizontal_position_changed () {}
  76
  77         void set_layer_display (LayerDisplay);
  78         LayerDisplay layer_display () const { return _layer_display; }
  79
  80         ArdourCanvas::Group* background_group() { return _background_group; }
  81         ArdourCanvas::Group* canvas_item() { return _canvas_group; }
  82
  83         enum ColorTarget {
  84                 RegionColor,
  85                 StreamBaseColor
  86         };
  87
  88         Gdk::Color get_region_color () const { return region_color; }
  89         void       apply_color (Gdk::Color&, ColorTarget t);
  90
  91         uint32_t     num_selected_regionviews () const;
  92
  93         RegionView*  find_view (boost::shared_ptr<const ARDOUR::Region>);
  94         void         foreach_regionview (sigc::slot<void,RegionView*> slot);
  95         void         foreach_selected_regionview (sigc::slot<void,RegionView*> slot);
  96
  97         void set_selected_regionviews (RegionSelection&);
  98         void get_selectables (ARDOUR::framepos_t, ARDOUR::framepos_t, double, double, std::list<Selectable* >&);
  99         void get_inverted_selectables (Selection&, std::list<Selectable* >& results);
 100
 101         virtual void update_contents_metrics(boost::shared_ptr<ARDOUR::Region>) {}
 102
 103         void add_region_view (boost::weak_ptr<ARDOUR::Region>);
 104
 105         void region_layered (RegionView*);
 106         virtual void update_contents_height ();
 107
 108         virtual void redisplay_track () = 0;
 109         double child_height () const;
 110         ARDOUR::layer_t layers () const { return _layers; }
 111
 112         virtual RegionView* create_region_view (boost::shared_ptr<ARDOUR::Region>, bool, bool) {
 113                 return 0;
 114         }
 115
 116         void check_record_layers (boost::shared_ptr<ARDOUR::Region>, ARDOUR::framepos_t);
 117
 118         sigc::signal<void, RegionView*> RegionViewAdded;
 119         sigc::signal<void> RegionViewRemoved;
 120
 121 protected:
 122         StreamView (RouteTimeAxisView&, ArdourCanvas::Group* background_group = 0, ArdourCanvas::Group* canvas_group = 0);
 123
 124         void         transport_changed();
 125         void         transport_looped();
 126         void         rec_enable_changed();
 127         void         sess_rec_enable_changed();
 128         virtual void setup_rec_box () = 0;
 129         virtual void update_rec_box ();
 130
 131         virtual RegionView* add_region_view_internal (boost::shared_ptr<ARDOUR::Region>,
 132                       bool wait_for_waves, bool recording = false) = 0;
 133         virtual void remove_region_view (boost::weak_ptr<ARDOUR::Region> );
 134
 135         void         display_track (boost::shared_ptr<ARDOUR::Track>);
 136         virtual void undisplay_track ();
 137         void         diskstream_changed ();
 138         void         layer_regions ();
 139
 140         virtual void playlist_switched (boost::weak_ptr<ARDOUR::Track>);
 141         virtual void playlist_layered (boost::weak_ptr<ARDOUR::Track>);
 142
 143         virtual void color_handler () = 0;
 144
 145         RouteTimeAxisView&        _trackview;
 146         bool                      owns_background_group;
 147         bool                      owns_canvas_group;
 148         ArdourCanvas::Group*      _background_group;
 149         ArdourCanvas::Group*      _canvas_group;
 150         ArdourCanvas::SimpleRect* canvas_rect; /* frame around the whole thing */
 151
 152         typedef std::list<RegionView* > RegionViewList;
 153         RegionViewList  region_views;
 154
 155         double _samples_per_unit;
 156
 157         sigc::connection       screen_update_connection;
 158         std::vector<RecBoxInfo>     rec_rects;
 159         std::list< std::pair<boost::shared_ptr<ARDOUR::Region>,RegionView* > > rec_regions;
 160         bool                   rec_updating;
 161         bool                   rec_active;
 162
 163         Gdk::Color region_color;      ///< Contained region color
 164         uint32_t   stream_base_color; ///< Background color
 165
 166         PBD::ScopedConnectionList playlist_connections;
 167         PBD::ScopedConnection playlist_switched_connection;
 168
 169         ARDOUR::layer_t _layers;
 170         LayerDisplay    _layer_display;
 171
 172         double height;
 173
 174         PBD::ScopedConnectionList rec_data_ready_connections;
 175         framepos_t                last_rec_data_frame;
 176
 177         /* When recording, the session time at which a new layer must be created for the region
 178            being recorded, or max_framepos if not applicable.
 179         */
 180         framepos_t _new_rec_layer_time;
 181         void setup_new_rec_layer_time (boost::shared_ptr<ARDOUR::Region>);
 182
 183 private:
 184         void update_coverage_frames ();
 185 };
 186
 187 #endif /* __ardour_streamview_h__ */
 188