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 class RegionView : public TimeAxisViewItem
  42 {
  43   public:
  44         RegionView (ArdourCanvas::Group* parent,
  45                     TimeAxisView&        time_view,
  46                     boost::shared_ptr<ARDOUR::Region> region,
  47                     double               samples_per_unit,
  48                     Gdk::Color const &   basic_color);
  49
  50         RegionView (const RegionView& other);
  51         RegionView (const RegionView& other, boost::shared_ptr<ARDOUR::Region> other_region);
  52
  53         ~RegionView ();
  54
  55         virtual void init (Gdk::Color const & base_color, bool wait_for_data);
  56
  57         boost::shared_ptr<ARDOUR::Region> region() const { return _region; }
  58
  59         bool is_valid() const    { return valid; }
  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 (nframes64_t, void*);
  66
  67         void move (double xdelta, double ydelta);
  68
  69         void raise_to_top ();
  70         void lower_to_bottom ();
  71
  72         bool set_position(nframes64_t pos, void* src, double* delta = 0);
  73         void fake_set_opaque (bool yn);
  74
  75         virtual void show_region_editor ();
  76         void hide_region_editor ();
  77
  78         virtual void region_changed (const PBD::PropertyChange&);
  79
  80         virtual GhostRegion* add_ghost (TimeAxisView&) = 0;
  81         void remove_ghost_in (TimeAxisView&);
  82         void remove_ghost (GhostRegion*);
  83
  84         uint32_t get_fill_color ();
  85
  86         virtual void entered (bool) {}
  87         virtual void exited () {}
  88
  89         virtual void enable_display(bool yn) { _enable_display = yn; }
  90         virtual void update_coverage_frames (LayerDisplay);
  91
  92         static PBD::Signal1<void,RegionView*> RegionViewGoingAway;
  93
  94   protected:
  95
  96         /** Allows derived types to specify their visibility requirements
  97      * to the TimeAxisViewItem parent class
  98      */
  99     RegionView (ArdourCanvas::Group *,
 100                 TimeAxisView&,
 101                 boost::shared_ptr<ARDOUR::Region>,
 102                 double samples_per_unit,
 103                 Gdk::Color const & basic_color,
 104                 bool recording,
 105                 TimeAxisViewItem::Visibility);
 106
 107     virtual void region_resized (const PBD::PropertyChange&);
 108     virtual void region_muted ();
 109     void         region_locked ();
 110     void         region_opacity ();
 111     virtual void region_renamed ();
 112     void         region_sync_changed ();
 113
 114     Glib::ustring make_name () const;
 115
 116     static gint _lock_toggle (ArdourCanvas::Item*, GdkEvent*, void*);
 117     void        lock_toggle ();
 118
 119     virtual void set_colors ();
 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     std::vector<ControlPoint *> control_points;
 133     double current_visible_sync_position;
 134
 135     bool    valid; ///< see StreamView::redisplay_diskstream()
 136     bool    _enable_display; ///< see StreamView::redisplay_diskstream()
 137     double  _pixel_width;
 138     bool    in_destructor;
 139
 140     bool wait_for_data;
 141
 142     std::vector<GhostRegion*> ghosts;
 143
 144         /** a list of rectangles which are used in stacked display mode to colour
 145             different bits of regions according to whether or not they are the one
 146             that will be played at any given time.
 147         */
 148         std::list<ArdourCanvas::SimpleRect*> _coverage_frames;
 149
 150         ARDOUR::BeatsFramesConverter _time_converter;
 151 };
 152
 153 #endif /* __gtk_ardour_region_view_h__ */