gtk2_ardour/region_view.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 __gtk_ardour_region_view_h__
  20 #define __gtk_ardour_region_view_h__
  21
  22 #include <vector>
  23
  24 #include <libgnomecanvasmm.h>
  25 #include <libgnomecanvasmm/polygon.h>
  26 #include <sigc++/signal.h>
  27 #include "ardour/region.h"
  28 #include "ardour/beats_frames_converter.h"
  29
  30 #include "time_axis_view_item.h"
  31 #include "automation_line.h"
  32 #include "enums.h"
  33 #include "canvas.h"
  34
  35 class TimeAxisView;
  36 class RegionEditor;
  37 class GhostRegion;
  38 class AutomationTimeAxisView;
  39 class AutomationRegionView;
  40
  41 namespace Gnome { namespace Canvas {
  42         class NoEventText;
  43 } }
  44
  45 class RegionView : public TimeAxisViewItem
  46 {
  47   public:
  48         RegionView (ArdourCanvas::Group* parent,
  49                     TimeAxisView&        time_view,
  50                     boost::shared_ptr<ARDOUR::Region> region,
  51                     double               samples_per_unit,
  52                     Gdk::Color const &   basic_color,
  53                     bool                 automation = false);
  54
  55         RegionView (const RegionView& other);
  56         RegionView (const RegionView& other, boost::shared_ptr<ARDOUR::Region> other_region);
  57
  58         ~RegionView ();
  59
  60         virtual void init (Gdk::Color const & base_color, bool wait_for_data);
  61
  62         boost::shared_ptr<ARDOUR::Region> region() const { return _region; }
  63
  64         bool is_valid() const    { return valid; }
  65
  66         void set_valid (bool yn) { valid = yn; }
  67
  68         virtual void set_height (double);
  69         virtual void set_samples_per_unit (double);
  70         virtual bool set_duration (framecnt_t, void*);
  71
  72         void move (double xdelta, double ydelta);
  73
  74         void raise_to_top ();
  75         void lower_to_bottom ();
  76
  77         bool set_position(framepos_t pos, void* src, double* delta = 0);
  78         void fake_set_opaque (bool yn);
  79
  80         virtual void show_region_editor ();
  81         void hide_region_editor ();
  82
  83         virtual void region_changed (const PBD::PropertyChange&);
  84
  85         virtual GhostRegion* add_ghost (TimeAxisView&) = 0;
  86         void remove_ghost_in (TimeAxisView&);
  87         void remove_ghost (GhostRegion*);
  88
  89         uint32_t get_fill_color ();
  90
  91         virtual void entered (bool) {}
  92         virtual void exited () {}
  93
  94         virtual void enable_display(bool yn) { _enable_display = yn; }
  95         virtual void update_coverage_frames (LayerDisplay);
  96
  97         static PBD::Signal1<void,RegionView*> RegionViewGoingAway;
  98
  99         ARDOUR::BeatsFramesConverter const & time_converter () {
 100                 return _time_converter;
 101         }
 102
 103         /** Called when a front trim is about to begin */
 104         virtual void trim_front_starting () {}
 105
 106         void trim_front (framepos_t, bool);
 107
 108         /** Called when a start trim has finished */
 109         virtual void trim_front_ending () {}
 110
 111         void trim_end (framepos_t, bool);
 112         void trim_contents (framepos_t, bool, bool);
 113         virtual void thaw_after_trim ();
 114
 115         void set_silent_frames (const ARDOUR::AudioIntervalResult&, double threshold);
 116         void drop_silent_frames ();
 117         void hide_silent_frames ();
 118
 119   protected:
 120
 121         /** Allows derived types to specify their visibility requirements
 122          * to the TimeAxisViewItem parent class
 123          */
 124         RegionView (ArdourCanvas::Group *,
 125                     TimeAxisView&,
 126                     boost::shared_ptr<ARDOUR::Region>,
 127                     double samples_per_unit,
 128                     Gdk::Color const & basic_color,
 129                     bool recording,
 130                     TimeAxisViewItem::Visibility);
 131
 132         virtual void region_resized (const PBD::PropertyChange&);
 133         virtual void region_muted ();
 134         void         region_locked ();
 135         void         region_opacity ();
 136         virtual void region_renamed ();
 137         void         region_sync_changed ();
 138
 139         std::string make_name () const;
 140
 141         static gint _lock_toggle (ArdourCanvas::Item*, GdkEvent*, void*);
 142         void        lock_toggle ();
 143
 144         virtual void set_colors ();
 145         virtual void set_frame_color ();
 146         virtual void reset_width_dependent_items (double pixel_width);
 147
 148         virtual void color_handler () {}
 149
 150         boost::shared_ptr<ARDOUR::Region> _region;
 151
 152         ArdourCanvas::Polygon* sync_mark; ///< polgyon for sync position
 153         ArdourCanvas::Line* sync_line; ///< polgyon for sync position
 154
 155         RegionEditor* editor;
 156
 157         std::vector<ControlPoint *> control_points;
 158         double current_visible_sync_position;
 159
 160         bool    valid; ///< see StreamView::redisplay_diskstream()
 161         bool    _enable_display; ///< see StreamView::redisplay_diskstream()
 162         double  _pixel_width;
 163         bool    in_destructor;
 164
 165         bool wait_for_data;
 166
 167         std::vector<GhostRegion*> ghosts;
 168
 169         /** a list of rectangles which are used in stacked display mode to colour
 170             different bits of regions according to whether or not they are the one
 171             that will be played at any given time.
 172         */
 173         std::list<ArdourCanvas::SimpleRect*> _coverage_frames;
 174
 175         /** a list of rectangles used to show silent segments
 176         */
 177         std::list<ArdourCanvas::SimpleRect*> _silent_frames;
 178         /** a list of rectangles used to show the current silence threshold
 179         */
 180         std::list<ArdourCanvas::SimpleRect*> _silent_threshold_frames;
 181         /** a text item to display strip silence statistics
 182          */
 183         ArdourCanvas::NoEventText* _silence_text;
 184
 185         ARDOUR::BeatsFramesConverter _time_converter;
 186 };
 187
 188 #endif /* __gtk_ardour_region_view_h__ */