1 /* 2 * Copyright (C) 2003, 2006 Apple Computer, Inc. All rights reserved. 3 * 2006 Rob Buis <buis@kde.org> 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef Path_h 28 #define Path_h 29 30 #include "dom/dom_string.h" 31 #include "platform/graphics/FloatPoint.h" 32 #include "platform/graphics/FloatRect.h" 33 #include <QPainterPath> 34 35 typedef QPainterPath PlatformPath; 36 37 namespace WebCore 38 { 39 class AffineTransform; 40 } 41 42 namespace khtml 43 { 44 using WebCore::AffineTransform; 45 using WebCore::FloatPoint; 46 using WebCore::FloatSize; 47 using WebCore::FloatRect; 48 //class String; 49 50 enum WindRule { 51 RULE_NONZERO = 0, 52 RULE_EVENODD = 1 53 }; 54 55 enum PathElementType { 56 PathElementMoveToPoint, 57 PathElementAddLineToPoint, 58 PathElementAddQuadCurveToPoint, 59 PathElementAddCurveToPoint, 60 PathElementCloseSubpath 61 }; 62 63 struct PathElement { 64 PathElementType type; 65 FloatPoint *points; 66 }; 67 68 typedef void (*PathApplierFunction)(void *info, const PathElement *); 69 70 class Path 71 { 72 public: 73 Path(); 74 ~Path(); 75 76 Path(const Path &); 77 Path &operator=(const Path &); 78 79 bool contains(const FloatPoint &, WindRule rule = RULE_NONZERO) const; 80 FloatRect boundingRect() const; 81 82 float length(); 83 FloatPoint pointAtLength(float length, bool &ok); 84 float normalAngleAtLength(float length, bool &ok); 85 86 void clear(); 87 bool isEmpty() const; 88 89 void moveTo(const FloatPoint &); 90 void addLineTo(const FloatPoint &); 91 void addQuadCurveTo(const FloatPoint &controlPoint, const FloatPoint &point); 92 void addBezierCurveTo(const FloatPoint &controlPoint1, const FloatPoint &controlPoint2, const FloatPoint &); 93 void addArcTo(const FloatPoint &, const FloatPoint &, float radius); 94 void closeSubpath(); 95 96 void addArc(const FloatPoint &, float radius, float startAngle, float endAngle, bool anticlockwise); 97 void addRect(const FloatRect &); 98 void addEllipse(const FloatRect &); 99 100 void translate(const FloatSize &); 101 setWindingRule(WindRule rule)102 void setWindingRule(WindRule rule) 103 { 104 m_rule = rule; 105 } windingRule()106 WindRule windingRule() const 107 { 108 return m_rule; 109 } 110 111 DOM::DOMString debugString() const; 112 platformPath()113 PlatformPath *platformPath() const 114 { 115 return m_path; 116 } 117 118 static Path createRoundedRectangle(const FloatRect &, const FloatSize &roundingRadii); 119 static Path createRoundedRectangle(const FloatRect &, const FloatSize &topLeftRadius, const FloatSize &topRightRadius, const FloatSize &bottomLeftRadius, const FloatSize &bottomRightRadius); 120 static Path createRectangle(const FloatRect &); 121 static Path createEllipse(const FloatPoint ¢er, float rx, float ry); 122 static Path createCircle(const FloatPoint ¢er, float r); 123 static Path createLine(const FloatPoint &, const FloatPoint &); 124 125 void apply(void *info, PathApplierFunction) const; 126 void transform(const AffineTransform &); 127 128 private: 129 PlatformPath *m_path; 130 WindRule m_rule; 131 }; 132 133 } 134 135 #endif 136