1 /* 2 * Copyright (C) 2003, 2006, 2009 Apple Inc. All rights reserved. 3 * Copyright (C) 2010 Google Inc. All rights reserved. 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 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 19 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 22 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef RoundedRect_h 28 #define RoundedRect_h 29 30 #include "core/platform/graphics/FloatQuad.h" 31 #include "core/platform/graphics/IntRect.h" 32 33 namespace WebCore { 34 35 36 class RoundedRect { 37 public: 38 class Radii { 39 public: 40 Radii() {} 41 Radii(const IntSize& topLeft, const IntSize& topRight, const IntSize& bottomLeft, const IntSize& bottomRight) 42 : m_topLeft(topLeft) 43 , m_topRight(topRight) 44 , m_bottomLeft(bottomLeft) 45 , m_bottomRight(bottomRight) 46 { 47 } 48 49 void setTopLeft(const IntSize& size) { m_topLeft = size; } 50 void setTopRight(const IntSize& size) { m_topRight = size; } 51 void setBottomLeft(const IntSize& size) { m_bottomLeft = size; } 52 void setBottomRight(const IntSize& size) { m_bottomRight = size; } 53 const IntSize& topLeft() const { return m_topLeft; } 54 const IntSize& topRight() const { return m_topRight; } 55 const IntSize& bottomLeft() const { return m_bottomLeft; } 56 const IntSize& bottomRight() const { return m_bottomRight; } 57 58 bool isZero() const; 59 60 void includeLogicalEdges(const Radii& edges, bool isHorizontal, bool includeLogicalLeftEdge, bool includeLogicalRightEdge); 61 void excludeLogicalEdges(bool isHorizontal, bool excludeLogicalLeftEdge, bool excludeLogicalRightEdge); 62 63 void scale(float factor); 64 void expand(int topWidth, int bottomWidth, int leftWidth, int rightWidth); 65 void expand(int size) { expand(size, size, size, size); } 66 void shrink(int topWidth, int bottomWidth, int leftWidth, int rightWidth) { expand(-topWidth, -bottomWidth, -leftWidth, -rightWidth); } 67 void shrink(int size) { shrink(size, size, size, size); } 68 69 private: 70 IntSize m_topLeft; 71 IntSize m_topRight; 72 IntSize m_bottomLeft; 73 IntSize m_bottomRight; 74 }; 75 76 explicit RoundedRect(const IntRect&, const Radii& = Radii()); 77 RoundedRect(int x, int y, int width, int height); 78 RoundedRect(const IntRect&, const IntSize& topLeft, const IntSize& topRight, const IntSize& bottomLeft, const IntSize& bottomRight); 79 80 const IntRect& rect() const { return m_rect; } 81 const Radii& radii() const { return m_radii; } 82 bool isRounded() const { return !m_radii.isZero(); } 83 bool isEmpty() const { return m_rect.isEmpty(); } 84 85 // Returns a quickly computed rect enclosed by the rounded rect. 86 IntRect radiusCenterRect() const; 87 88 void setRect(const IntRect& rect) { m_rect = rect; } 89 void setRadii(const Radii& radii) { m_radii = radii; } 90 91 void move(const IntSize& size) { m_rect.move(size); } 92 void inflate(int size) { m_rect.inflate(size); } 93 void inflateWithRadii(int size); 94 void expandRadii(int size) { m_radii.expand(size); } 95 void shrinkRadii(int size) { m_radii.shrink(size); } 96 97 void includeLogicalEdges(const Radii& edges, bool isHorizontal, bool includeLogicalLeftEdge, bool includeLogicalRightEdge); 98 void excludeLogicalEdges(bool isHorizontal, bool excludeLogicalLeftEdge, bool excludeLogicalRightEdge); 99 100 bool isRenderable() const; 101 void adjustRadii(); 102 103 // Tests whether the quad intersects any part of this rounded rectangle. 104 // This only works for convex quads. 105 bool intersectsQuad(const FloatQuad&) const; 106 107 private: 108 IntRect m_rect; 109 Radii m_radii; 110 }; 111 112 inline bool operator==(const RoundedRect::Radii& a, const RoundedRect::Radii& b) 113 { 114 return a.topLeft() == b.topLeft() && a.topRight() == b.topRight() && a.bottomLeft() == b.bottomLeft() && a.bottomRight() == b.bottomRight(); 115 } 116 117 inline bool operator!=(const RoundedRect::Radii& a, const RoundedRect::Radii& b) 118 { 119 return !(a == b); 120 } 121 122 inline bool operator==(const RoundedRect& a, const RoundedRect& b) 123 { 124 return a.rect() == b.rect() && a.radii() == b.radii(); 125 } 126 127 128 } // namespace WebCore 129 130 #endif // RoundedRect_h 131
