ardour/libs/canvas/canvas/line_set.h
2013-12-27 16:24:58 -05:00

58 lines
1.4 KiB
C++

/*
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.
*/
#include "canvas/visibility.h"
#include "canvas/item.h"
namespace ArdourCanvas {
class LIBCANVAS_API LineSet : public Item
{
public:
enum Orientation {
Vertical,
Horizontal
};
LineSet (Group *);
void compute_bounding_box () const;
void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
bool covers (Duple const &) const;
void set_height (Distance);
void add (Coord, Distance, Color);
void clear ();
struct Line {
Line (Coord y_, Distance width_, Color color_) : y (y_), width (width_), color (color_) {}
Coord y;
Distance width;
Color color;
};
private:
std::list<Line> _lines;
Distance _height;
};
}