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6a67a6bcc4
a collection of rectangles, conceptually similar to LineSet this avoids keeping around N different Canvas::Rectangles and instead collapses a related set of them down to a single item
68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
/*
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* Copyright (C) 2012 Carl Hetherington <carl@carlh.net>
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* Copyright (C) 2013-2014 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __CANVAS_RECTSET_H__
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#define __CANVAS_RECTSET_H__
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#include <vector>
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#include "canvas/item.h"
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#include "canvas/visibility.h"
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namespace ArdourCanvas {
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class LIBCANVAS_API RectSet : public Item
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{
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public:
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RectSet (Canvas*);
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RectSet (Item*);
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void compute_bounding_box () const;
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void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
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bool covers (Duple const &) const;
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void begin_add ();
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void end_add ();
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struct ResetRAII {
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ResetRAII (RectSet& rs) : rects (rs) { rects.clear(); rects.begin_add(); }
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~ResetRAII () { rects.end_add (); }
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RectSet& rects;
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};
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void add_rect (int index, Rect const &, Gtkmm2ext::Color);
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void clear ();
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struct ColoredRectangle : Rect {
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ColoredRectangle (int i, Rect const & ra, Gtkmm2ext::Color color_) : Rect (ra), index (i), color (color_) {}
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int index;
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Gtkmm2ext::Color color;
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};
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std::vector<ColoredRectangle> const & rects() const { return _rects; }
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private:
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std::vector<ColoredRectangle> _rects;
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};
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}
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#endif /* __CANVAS_RECTSET_H__ */
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