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    Copyright (C) 2001, 2006 Paul Davis 

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

#ifndef __ardour_streamview_h__
#define __ardour_streamview_h__

#include <list>
#include <map>
#include <cmath>

#include <ardour/location.h>
#include "enums.h"
#include "simplerect.h"
#include "canvas.h"

namespace Gdk {
      class Color;

namespace ARDOUR {
      class Route;
      class Diskstream;
      class Crossfade;
      class PeakData;
      class Region;
      class Source;

struct RecBoxInfo {
      ArdourCanvas::SimpleRect* rectangle;
      nframes_t            start;
      nframes_t            length;

class PublicEditor;
class Selectable;
class RouteTimeAxisView;
class RegionView;
class RegionSelection;
class CrossfadeView;
class Selection;

class StreamView : public sigc::trackable
      virtual ~StreamView ();

      RouteTimeAxisView& trackview() { return _trackview; }

      void attach ();

      void set_zoom_all();

      int set_position (gdouble x, gdouble y);
      virtual int set_height (gdouble);

      virtual int set_samples_per_unit (gdouble spp);
      gdouble     get_samples_per_unit () { return _samples_per_unit; }

      ArdourCanvas::Group* background_group() { return _background_group; }
      ArdourCanvas::Group* canvas_item() { return canvas_group; }

      enum ColorTarget {

      Gdk::Color get_region_color () const { return region_color; }
      void       apply_color (Gdk::Color&, ColorTarget t);

      RegionView*  find_view (boost::shared_ptr<const ARDOUR::Region>);
      void         foreach_regionview (sigc::slot<void,RegionView*> slot);

      void set_selected_regionviews (RegionSelection&);
      void get_selectables (nframes_t start, nframes_t end, list<Selectable* >&);
      void get_inverted_selectables (Selection&, list<Selectable* >& results);

      void add_region_view (boost::shared_ptr<ARDOUR::Region>);
      void region_layered (RegionView*);
      sigc::signal<void,RegionView*> RegionViewAdded;

      StreamView (RouteTimeAxisView&);
//private: (FIXME?)

      void         transport_changed();
      void         transport_looped();
      void         rec_enable_changed();
      void         sess_rec_enable_changed();
      virtual void setup_rec_box () = 0;
      void         update_rec_box ();
      virtual void update_rec_regions () = 0;
      virtual void add_region_view_internal (boost::shared_ptr<ARDOUR::Region>, bool wait_for_waves, bool recording = false) = 0;
      virtual void remove_region_view (boost::weak_ptr<ARDOUR::Region> );
      //void         remove_rec_region (boost::shared_ptr<ARDOUR::Region>); (unused)

      void         display_diskstream (boost::weak_ptr<ARDOUR::Diskstream>);
      virtual void undisplay_diskstream ();
      virtual void redisplay_diskstream () = 0;
      void         diskstream_changed ();
      virtual void playlist_changed (boost::weak_ptr<ARDOUR::Diskstream>);
      virtual void playlist_modified ();
      virtual void color_handler () = 0;

      RouteTimeAxisView&        _trackview;
      ArdourCanvas::Group*      _background_group;
      ArdourCanvas::Group*      canvas_group;
      ArdourCanvas::SimpleRect* canvas_rect; /* frame around the whole thing */

      typedef list<RegionView* > RegionViewList;
      RegionViewList  region_views;

      double _samples_per_unit;

      sigc::connection       screen_update_connection;
      vector<RecBoxInfo>     rec_rects;
      list<boost::shared_ptr<ARDOUR::Region> > rec_regions;
      bool                   rec_updating;
      bool                   rec_active;
      bool                   use_rec_regions;
      Gdk::Color region_color;      ///< Contained region color
      uint32_t   stream_base_color; ///< Background color

      vector<sigc::connection> playlist_connections;
      sigc::connection         playlist_change_connection;

#endif /* __ardour_streamview_h__ */

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