ghostregion.h

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/*
 * Copyright (C) 2005-2017 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
 * Copyright (C) 2006-2015 Tim Mayberry <mojofunk@gmail.com>
 * Copyright (C) 2008-2014 David Robillard <d@drobilla.net>
 * Copyright (C) 2009-2011 Carl Hetherington <carl@carlh.net>
 * Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org>
 * Copyright (C) 2016-2017 Nick Mainsbridge <mainsbridge@gmail.com>
 *
 * 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
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#ifndef __ardour_gtk_ghost_region_h__
#define __ardour_gtk_ghost_region_h__
 
#include <vector>
#include <boost/unordered_map.hpp>
 
#include "evoral/Note.h"
#include "pbd/signals.h"
 
#include "gtkmm2ext/colors.h"
 
namespace ArdourWaveView {
        class WaveView;
}
 
namespace ArdourCanvas {
        class Container;
        class Rectangle;
        class Item;
        class Polygon;
}
 
class NoteBase;
class Note;
class Hit;
class MidiStreamView;
class TimeAxisView;
class RegionView;
class MidiRegionView;
 
class GhostRegion : virtual public sigc::trackable
{
public:
        GhostRegion(RegionView& rv,
                    ArdourCanvas::Container* parent,
                    TimeAxisView& tv,
                    TimeAxisView& source_tv,
                    double initial_unit_pos);
 
        virtual ~GhostRegion();
 
        virtual void set_samples_per_pixel (double) = 0;
        virtual void set_height();
        virtual void set_colors();
 
        void set_duration(double units);
 
        virtual void set_selected (bool) {}
 
        guint source_track_color(unsigned char alpha = 0xff);
        bool is_automation_ghost();
 
        RegionView& parent_rv;
        TimeAxisView& trackview;
        TimeAxisView& source_trackview;
        ArdourCanvas::Container* group;
        ArdourCanvas::Rectangle* base_rect;
};
 
class AudioGhostRegion : public GhostRegion {
public:
        AudioGhostRegion(RegionView& rv,
                         TimeAxisView& tv,
                         TimeAxisView& source_tv,
                         double initial_unit_pos);
 
        void set_samples_per_pixel (double);
        void set_height();
        void set_colors();
 
        std::vector<ArdourWaveView::WaveView*> waves;
};
 
class MidiGhostRegion : public GhostRegion {
public:
        class GhostEvent : public sigc::trackable
        {
        public:
                GhostEvent (::NoteBase *, ArdourCanvas::Container *);
                GhostEvent (::NoteBase *, ArdourCanvas::Container *, ArdourCanvas::Item* i);
                virtual ~GhostEvent ();
 
                NoteBase* event;
                ArdourCanvas::Item* item;
                bool is_hit;
                int velocity_while_editing;
        };
 
        MidiGhostRegion(MidiRegionView& rv,
                        TimeAxisView& tv,
                        TimeAxisView& source_tv,
                        double initial_unit_pos);
 
        ~MidiGhostRegion();
        MidiStreamView* midi_view();
 
        void set_height();
        void set_samples_per_pixel (double spu);
        void set_colors();
 
        virtual void update_contents_height();
 
        virtual void add_note(NoteBase*);
        virtual void update_note (GhostEvent* note);
        virtual void update_hit (GhostEvent* hit);
        virtual void remove_note (NoteBase*);
        virtual void note_selected (NoteBase*) {}
 
        void model_changed();
        void view_changed();
        void clear_events();
 
  protected:
        ArdourCanvas::Container* _note_group;
        Gtkmm2ext::Color _outline;
        ArdourCanvas::Rectangle* _tmp_rect;
        ArdourCanvas::Polygon* _tmp_poly;
 
        MidiRegionView& parent_mrv;
        /* must match typedef in NoteBase */
        typedef Evoral::Note<Temporal::Beats> NoteType;
        MidiGhostRegion::GhostEvent* find_event (std::shared_ptr<NoteType>);
 
        typedef boost::unordered_map<std::shared_ptr<NoteType>, MidiGhostRegion::GhostEvent* > EventList;
        EventList events;
        EventList::iterator _optimization_iterator;
};
 
#endif /* __ardour_gtk_ghost_region_h__ */