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 "waveview.h"
  33 #include "canvas.h"
  34
  35 class TimeAxisView;
  36 class RegionEditor;
  37 class GhostRegion;
  38 class AutomationTimeAxisView;
  39
  40 class RegionView : public TimeAxisViewItem
  41 {
  42   public:
  43         RegionView (ArdourCanvas::Group* parent,
  44                     TimeAxisView&        time_view,
  45                     boost::shared_ptr<ARDOUR::Region> region,
  46                     double               samples_per_unit,
  47                     Gdk::Color&          basic_color);
  48
  49         RegionView (const RegionView& other);
  50         RegionView (const RegionView& other, boost::shared_ptr<ARDOUR::Region> other_region);
  51
  52         ~RegionView ();
  53
  54         virtual void init (Gdk::Color& base_color, bool wait_for_data);
  55
  56         boost::shared_ptr<ARDOUR::Region> region() const { return _region; }
  57
  58         bool is_valid() const    { return valid; }
  59
  60
  61         void set_valid (bool yn) { valid = yn; }
  62
  63         virtual void set_height (double);
  64         virtual void set_samples_per_unit (double);
  65         virtual bool set_duration (nframes_t, void*);
  66
  67         void move (double xdelta, double ydelta);
  68
  69         void raise ();
  70         void raise_to_top ();
  71         void lower ();
  72         void lower_to_bottom ();
  73
  74         bool set_position(nframes_t pos, void* src, double* delta = 0);
  75         void fake_set_opaque (bool yn);
  76
  77         virtual void show_region_editor () = 0;
  78         virtual void hide_region_editor();
  79
  80         virtual void region_changed (ARDOUR::Change);
  81
  82         virtual GhostRegion* add_ghost (AutomationTimeAxisView&) = 0;
  83         void                 remove_ghost (GhostRegion*);
  84
  85         uint32_t get_fill_color ();
  86
  87         virtual void entered () {}
  88         virtual void exited () {}
  89
  90         static sigc::signal<void,RegionView*> RegionViewGoingAway;
  91         sigc::signal<void>                    GoingAway;
  92
  93   protected:
  94
  95         /** Allows derived types to specify their visibility requirements
  96      * to the TimeAxisViewItem parent class
  97      */
  98     RegionView (ArdourCanvas::Group *,
  99                 TimeAxisView&,
 100                 boost::shared_ptr<ARDOUR::Region>,
 101                 double      samples_per_unit,
 102                 Gdk::Color& basic_color,
 103                 bool recording,
 104                 TimeAxisViewItem::Visibility);
 105
 106     virtual void region_resized (ARDOUR::Change);
 107     void         region_moved (void *);
 108     virtual void region_muted ();
 109     void         region_locked ();
 110         void         region_opacity ();
 111     void         region_layered ();
 112     void         region_renamed ();
 113     void         region_sync_changed ();
 114
 115     static gint _lock_toggle (ArdourCanvas::Item*, GdkEvent*, void*);
 116     void        lock_toggle ();
 117
 118     virtual void set_colors ();
 119     virtual void compute_colors (Gdk::Color&);
 120     virtual void set_frame_color ();
 121     virtual void reset_width_dependent_items (double pixel_width);
 122
 123     virtual void color_handler () {}
 124
 125     boost::shared_ptr<ARDOUR::Region> _region;
 126
 127     ArdourCanvas::Polygon* sync_mark; ///< polgyon for sync position
 128     ArdourCanvas::Line* sync_line; ///< polgyon for sync position
 129
 130     RegionEditor* editor;
 131
 132     vector<ControlPoint *> control_points;
 133     double current_visible_sync_position;
 134
 135     bool     valid; ///< see StreamView::redisplay_diskstream()
 136     double  _pixel_width;
 137     double  _height;
 138     bool    in_destructor;
 139
 140     bool             wait_for_data;
 141     sigc::connection data_ready_connection;
 142
 143     vector<GhostRegion*> ghosts;
 144 };
 145
 146 #endif /* __gtk_ardour_region_view_h__ */