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/*
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_TYPES_H__
#define __CANVAS_TYPES_H__
#include <iostream>
#include <vector>
#include <stdint.h>
#include <boost/optional.hpp>
#include <cairomm/refptr.h>
namespace Cairo {
struct Context;
}
namespace ArdourCanvas
{
typedef double Coord;
typedef double Distance;
typedef uint32_t Color;
extern Coord const COORD_MAX;
struct Duple
{
Duple ()
: x (0)
, y (0)
{}
Duple (Coord x_, Coord y_)
: x (x_)
, y (y_)
{}
Coord x;
Coord y;
Duple translate (Duple) const;
};
extern Duple operator- (Duple const &);
extern Duple operator+ (Duple const &, Duple const &);
extern bool operator== (Duple const &, Duple const &);
extern Duple operator- (Duple const &, Duple const &);
extern Duple operator/ (Duple const &, double);
extern std::ostream & operator<< (std::ostream &, Duple const &);
struct Rect
{
Rect ()
: x0 (0)
, y0 (0)
, x1 (0)
, y1 (0)
{}
Rect (Coord x0_, Coord y0_, Coord x1_, Coord y1_)
: x0 (x0_)
, y0 (y0_)
, x1 (x1_)
, y1 (y1_)
{}
Coord x0;
Coord y0;
Coord x1;
Coord y1;
boost::optional<Rect> intersection (Rect const &) const;
Rect extend (Rect const &) const;
Rect translate (Duple) const;
Rect expand (Distance) const;
bool contains (Duple) const;
Rect fix () const;
Rect convert_to_device (Cairo::RefPtr<Cairo::Context>) const;
Rect convert_to_user (Cairo::RefPtr<Cairo::Context>) const;
Distance width () const {
return x1 - x0;
}
Distance height () const {
return y1 - y0;
}
};
extern std::ostream & operator<< (std::ostream &, Rect const &);
typedef std::vector<Duple> Points;
}
#endif
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