75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
//=============================================================================
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// MuseScore
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// Music Composition & Notation
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//
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// Copyright (C) 2016 Werner Schweer
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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 version 2
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// as published by the Free Software Foundation and appearing in
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// the file LICENCE.GPL
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//=============================================================================
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#ifndef __SHAPE_H__
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#define __SHAPE_H__
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namespace Ms {
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#ifndef NDEBUG
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//#define DEBUG_SHAPES // enable shape debugging
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#endif
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class Segment;
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//---------------------------------------------------------
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// Shape
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//---------------------------------------------------------
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class Shape : std::vector<QRectF> {
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public:
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Shape() {}
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Shape(const QRectF& r) { add(r); }
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void draw(QPainter*) const;
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void add(const Shape& s) { insert(end(), s.begin(), s.end()); }
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void add(const QRectF& r) { push_back(r); }
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void remove(const QRectF&);
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void remove(const Shape&);
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void translate(const QPointF&);
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Shape translated(const QPointF&) const;
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qreal minHorizontalDistance(const Shape&) const;
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qreal minVerticalDistance(const Shape&) const;
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qreal left() const;
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qreal right() const;
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qreal top() const;
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qreal bottom() const;
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int size() const { return std::vector<QRectF>::size(); }
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bool empty() const { return std::vector<QRectF>::empty(); }
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void clear() { std::vector<QRectF>::clear(); }
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#ifdef DEBUG_SHAPES
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void dump(const char*) const;
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#endif
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};
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//---------------------------------------------------------
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// intersects
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//---------------------------------------------------------
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inline static bool intersects(qreal a, qreal b, qreal c, qreal d)
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{
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// return (a >= c && a < d) || (b >= c && b < d) || (a < c && b >= b);
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// return (std::max(a,b) > std::min(c,d)) && (std::min(a,b) < std::max(c,d));
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// if we can assume a <= b and c <= d (reduces layout from 116
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return (b > c) && (a < d);
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}
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#ifdef DEBUG_SHAPES
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extern void testShapes();
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#endif
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} // namespace Ms
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#endif
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