automation_region_view.h

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/*
    Copyright (C) 2007 Paul Davis
    Author: David Robillard

    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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#ifndef __gtk_ardour_automation_region_view_h__
#define __gtk_ardour_automation_region_view_h__

#include "ardour/types.h"

#include "region_view.h"
#include "automation_time_axis.h"
#include "automation_line.h"
#include "enums.h"

namespace ARDOUR {
        class AutomationList;
        class Parameter;
};

class TimeAxisView;

class AutomationRegionView : public RegionView
{
public:
        AutomationRegionView(ArdourCanvas::Container*,
                             AutomationTimeAxisView&,
                             boost::shared_ptr<ARDOUR::Region>,
                             const Evoral::Parameter& parameter,
                             boost::shared_ptr<ARDOUR::AutomationList>,
                             double initial_samples_per_pixel,
                             uint32_t basic_color);

        ~AutomationRegionView();

        void init (bool wfd);

        bool paste (framepos_t                                      pos,
                    unsigned                                        paste_count,
                    float                                           times,
                    boost::shared_ptr<const ARDOUR::AutomationList> slist);

        ARDOUR::DoubleBeatsFramesConverter const & region_relative_time_converter () const {
                return _region_relative_time_converter;
        }

        ARDOUR::DoubleBeatsFramesConverter const & source_relative_time_converter () const {
                return _source_relative_time_converter;
        }

        inline AutomationTimeAxisView* automation_view() const
                { return dynamic_cast<AutomationTimeAxisView*>(&trackview); }

        boost::shared_ptr<AutomationLine> line() { return _line; }

        // We are a ghost.  Meta ghosts?  Crazy talk.
        virtual GhostRegion* add_ghost(TimeAxisView&) { return 0; }

        uint32_t get_fill_color() const;

        void set_height (double);
        void reset_width_dependent_items(double pixel_width);

protected:
        void create_line(boost::shared_ptr<ARDOUR::AutomationList> list);
        bool set_position(framepos_t pos, void* src, double* ignored);
        void region_resized (const PBD::PropertyChange&);
        bool canvas_group_event(GdkEvent* ev);
        void add_automation_event (GdkEvent* event, framepos_t when, double y, bool with_guard_points);
        void mouse_mode_changed ();
        void entered();
        void exited();

private:
        ARDOUR::DoubleBeatsFramesConverter _region_relative_time_converter;
        ARDOUR::DoubleBeatsFramesConverter _source_relative_time_converter;
        Evoral::Parameter                  _parameter;
        boost::shared_ptr<AutomationLine>  _line;
        PBD::ScopedConnection              _mouse_mode_connection;
};

#endif /* __gtk_ardour_automation_region_view_h__ */