/*
    Copyright (C) 2011-2013 Paul Davis
    Author: Carl Hetherington <cth@carlh.net>

    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 __CANVAS_POLYGON_H__
#define __CANVAS_POLYGON_H__

#include "canvas/visibility.h"
#include "canvas/poly_item.h"
#include "canvas/outline.h"
#include "canvas/fill.h"

namespace ArdourCanvas {

class LIBCANVAS_API Polygon : public PolyItem
{
public:
	Polygon (Canvas*);
	Polygon (Item*);
        virtual ~Polygon();

	void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
	void compute_bounding_box () const;
        bool covers (Duple const &) const;

  protected:
    mutable float* multiple;
    mutable float* constant;
    mutable Points::size_type cached_size;

    void cache_shape_computation () const;
};

}

#endif