ardour/libs/canvas/canvas/lollipop.h

70 lines
1.9 KiB
C++

/*
* Copyright (C) 2012 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2013-2014 Paul Davis <paul@linuxaudiosystems.com>
*
* 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_LOLLIPOP_H__
#define __CANVAS_LOLLIPOP_H__
#include "canvas/item.h"
#include "canvas/outline.h"
#include "canvas/poly_line.h"
#include "canvas/visibility.h"
namespace ArdourCanvas {
/* A line with a circle of radius _radius drawn at (x, max (y0,y1))
*/
class LIBCANVAS_API Lollipop : public Item
{
public:
Lollipop (Canvas*);
Lollipop (Item*);
void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
void compute_bounding_box () const;
bool covers (Duple const &) const;
void set_radius (Coord);
Coord radius() const { return _radius; }
void set_length (Coord);
Coord length() const { return _length; }
/* Set origin, length, radius in one pass */
void set (Duple const &, Coord, Coord);
void set_x (Coord);
Coord x () const { return _center.x; }
Coord y0 () const { return _center.y; }
Coord y1 () const { return _center.y + _length; }
void set_bounding_parent (Item*);
private:
Duple _center;
Coord _radius;
Coord _length;
Item* bounding_parent;
bool line_color_is_fill;
};
}
#endif