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livetrax/libs/canvas/canvas/arc.h

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C++

/*
Copyright (C) 2013 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
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_ARC_H__
#define __CANVAS_ARC_H__
#include "canvas/visibility.h"
#include "canvas/item.h"
#include "canvas/outline.h"
#include "canvas/fill.h"
namespace ArdourCanvas {
class Canvas;
class LIBCANVAS_API Arc : public Item
{
public:
Arc (Canvas*);
Arc (Item*);
void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
void compute_bounding_box () const;
void set_center (Duple const &);
void set_radius (Coord);
void set_arc (double degrees);
void set_start (double degrees);
Duple center() const {
return _center;
}
Coord radius () const {
return _radius;
}
double arc_degrees () const {
return _arc_degrees;
}
double start_degrees () const {
return _start_degrees;
}
bool covers (Duple const &) const;
private:
Duple _center;
Coord _radius;
double _arc_degrees;
double _start_degrees;
};
}
#endif