6e5de1926c
This adds also a way to differentiate types of horizontal spacing. The underlying implementation (zero-height shape elements) still remains the same.
117 lines
3.4 KiB
C++
117 lines
3.4 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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// ShapeElement
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//---------------------------------------------------------
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struct ShapeElement : public QRectF {
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#ifndef NDEBUG
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const char* text;
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void dump() const;
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ShapeElement(const QRectF& f, const char* t = 0) : QRectF(f), text(t) {}
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#else
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ShapeElement(const QRectF& f) : QRectF(f) {}
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#endif
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};
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//---------------------------------------------------------
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// Shape
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//---------------------------------------------------------
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class Shape : public std::vector<ShapeElement> {
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// class Shape : std::vector<ShapeElement> {
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public:
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enum HorizontalSpacingType {
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SPACING_GENERAL = 0,
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SPACING_LYRICS,
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SPACING_HARMONY,
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};
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Shape() {}
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#ifndef NDEBUG
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Shape(const QRectF& r, const char* s = 0) { add(r, s); }
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#else
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Shape(const QRectF& r) { add(r); }
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#endif
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void add(const Shape& s) { insert(end(), s.begin(), s.end()); }
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#ifndef NDEBUG
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void add(const QRectF& r, const char* t = 0);
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#else
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void add(const QRectF& r) { push_back(r); }
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#endif
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void remove(const QRectF&);
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void remove(const Shape&);
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void addHorizontalSpacing(HorizontalSpacingType type, qreal left, qreal right);
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void translate(const QPointF&);
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void translateX(qreal);
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void translateY(qreal);
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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 topDistance(const QPointF&) const;
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qreal bottomDistance(const QPointF&) 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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size_t size() const { return std::vector<ShapeElement>::size(); }
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bool empty() const { return std::vector<ShapeElement>::empty(); }
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void clear() { std::vector<ShapeElement>::clear(); }
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bool contains(const QPointF&) const;
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bool intersects(const QRectF& rr) const;
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bool intersects(const Shape&) const;
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void paint(QPainter&) const;
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#ifndef NDEBUG
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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
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if (a == b || c == d) // zero height
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return false;
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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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