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
  29 #include "time_axis_view_item.h"
  30 #include "automation_line.h"
  31 #include "enums.h"
  32 #include "canvas.h"
  33
  34 class TimeAxisView;
  35 class RegionEditor;
  36 class GhostRegion;
  37 class AutomationTimeAxisView;
  38
  39 class RegionView : public TimeAxisViewItem
  40 {
  41   public:
  42         RegionView (ArdourCanvas::Group* parent,
  43                     TimeAxisView&        time_view,
  44                     boost::shared_ptr<ARDOUR::Region> region,
  45                     double               samples_per_unit,
  46                     Gdk::Color&          basic_color);
  47
  48         RegionView (const RegionView& other);
  49         RegionView (const RegionView& other, boost::shared_ptr<ARDOUR::Region> other_region);
  50
  51         ~RegionView ();
  52
  53         virtual void init (Gdk::Color& base_color, bool wait_for_data);
  54
  55         boost::shared_ptr<ARDOUR::Region> region() const { return _region; }
  56
  57         bool is_valid() const    { return valid; }
  58
  59
  60         void set_valid (bool yn) { valid = yn; }
  61
  62         virtual void set_height (double);
  63         virtual void set_samples_per_unit (double);
  64         virtual bool set_duration (nframes_t, void*);
  65
  66         void move (double xdelta, double ydelta);
  67
  68         void raise ();
  69         void raise_to_top ();
  70         void lower ();
  71         void lower_to_bottom ();
  72
  73         bool set_position(nframes_t pos, void* src, double* delta = 0);
  74         void fake_set_opaque (bool yn);
  75
  76         virtual void show_region_editor () = 0;
  77         virtual void hide_region_editor();
  78
  79         virtual void region_changed (ARDOUR::Change);
  80
  81         virtual GhostRegion* add_ghost (AutomationTimeAxisView&) = 0;
  82         void                 remove_ghost (GhostRegion*);
  83
  84         uint32_t get_fill_color ();
  85
  86         virtual void entered () {}
  87         virtual void exited () {}
  88
  89         static sigc::signal<void,RegionView*> RegionViewGoingAway;
  90         sigc::signal<void>                    GoingAway;
  91
  92   protected:
  93
  94         /** Allows derived types to specify their visibility requirements
  95      * to the TimeAxisViewItem parent class
  96      */
  97     RegionView (ArdourCanvas::Group *,
  98                 TimeAxisView&,
  99                 boost::shared_ptr<ARDOUR::Region>,
 100                 double      samples_per_unit,
 101                 Gdk::Color& basic_color,
 102                 bool recording,
 103                 TimeAxisViewItem::Visibility);
 104
 105     virtual void region_resized (ARDOUR::Change);
 106     void         region_moved (void *);
 107     virtual void region_muted ();
 108     void         region_locked ();
 109         void         region_opacity ();
 110     void         region_layered ();
 111     void         region_renamed ();
 112     void         region_sync_changed ();
 113
 114     static gint _lock_toggle (ArdourCanvas::Item*, GdkEvent*, void*);
 115     void        lock_toggle ();
 116
 117     virtual void set_colors ();
 118     virtual void compute_colors (Gdk::Color&);
 119     virtual void set_frame_color ();
 120     virtual void reset_width_dependent_items (double pixel_width);
 121
 122     virtual void color_handler () {}
 123
 124     boost::shared_ptr<ARDOUR::Region> _region;
 125
 126     ArdourCanvas::Polygon* sync_mark; ///< polgyon for sync position
 127     ArdourCanvas::Line* sync_line; ///< polgyon for sync position
 128
 129     RegionEditor* editor;
 130
 131     vector<ControlPoint *> control_points;
 132     double current_visible_sync_position;
 133
 134     bool     valid; ///< see StreamView::redisplay_diskstream()
 135     double  _pixel_width;
 136     bool    in_destructor;
 137
 138     bool             wait_for_data;
 139     sigc::connection data_ready_connection;
 140
 141     vector<GhostRegion*> ghosts;
 142 };
 143
 144 #endif /* __gtk_ardour_region_view_h__ */