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livetrax/libs/canvas/canvas/line_set.h

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1.8 KiB
C++

/*
* Copyright (C) 2012 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2013-2014 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __CANVAS_LINESET_H__
#define __CANVAS_LINESET_H__
#include <vector>
#include "canvas/item.h"
#include "canvas/visibility.h"
namespace ArdourCanvas {
class LIBCANVAS_API LineSet : public Item
{
public:
enum Orientation {
Vertical,
Horizontal
};
LineSet (Canvas*, Orientation o = Vertical);
LineSet (Item*, Orientation o = Vertical);
void compute_bounding_box () const;
void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
bool covers (Duple const &) const;
void set_extent (Distance);
Distance extent() const { return _extent; }
void add_coord (Coord, Distance, Gtkmm2ext::Color);
void clear ();
struct Line {
Line (Coord p, Distance width_, Gtkmm2ext::Color color_) : pos (p), width (width_), color (color_) {}
Coord pos;
Distance width;
Gtkmm2ext::Color color;
};
private:
std::vector<Line> _lines;
Distance _extent;
Orientation _orientation;
};
}
#endif /* __CANVAS_LINESET_H__ */