livetrax/gtk2_ardour/automation_region_view.h

/*
    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; }

	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 entered();
	void exited();

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

#endif /* __gtk_ardour_automation_region_view_h__ */