65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/*
|
|
* Copyright (C) 2012 Carl Hetherington <carl@carlh.net>
|
|
* Copyright (C) 2013-2014 Paul Davis <paul@linuxaudiosystems.com>
|
|
* Copyright (C) 2015-2016 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_POLY_ITEM_H__
|
|
#define __CANVAS_POLY_ITEM_H__
|
|
|
|
#include "canvas/item.h"
|
|
#include "canvas/outline.h"
|
|
#include "canvas/visibility.h"
|
|
|
|
namespace ArdourCanvas {
|
|
|
|
class LIBCANVAS_API PolyItem : public Item
|
|
{
|
|
public:
|
|
PolyItem (Canvas*);
|
|
PolyItem (Item*);
|
|
|
|
virtual void compute_bounding_box () const;
|
|
|
|
virtual void set (Points const&);
|
|
virtual void add_point (Duple const &);
|
|
virtual void clear ();
|
|
void pop_back();
|
|
Points const& get () const;
|
|
|
|
void dump (std::ostream&) const;
|
|
|
|
protected:
|
|
void render_path (Rect const&, Cairo::RefPtr<Cairo::Context>) const;
|
|
|
|
Points _points;
|
|
|
|
/* these return screen-cordidates of the most recent render_path() */
|
|
Duple const& left_edge () const { return _left; }
|
|
Duple const& right_edge () const { return _right; }
|
|
|
|
private:
|
|
static bool interpolate_line (Duple&, Duple const&, Coord const);
|
|
|
|
mutable Duple _left;
|
|
mutable Duple _right;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|