1/* 2 * Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org) 3 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21#ifndef Rect_h 22#define Rect_h 23 24#include "bindings/core/v8/ScriptWrappable.h" 25#include "core/css/CSSPrimitiveValue.h" 26#include "wtf/RefPtr.h" 27#include "wtf/text/StringBuilder.h" 28 29namespace blink { 30 31class RectBase : public RefCountedWillBeGarbageCollected<RectBase>, public ScriptWrappableBase { 32 DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(RectBase); 33public: 34 CSSPrimitiveValue* top() const { return m_top.get(); } 35 CSSPrimitiveValue* right() const { return m_right.get(); } 36 CSSPrimitiveValue* bottom() const { return m_bottom.get(); } 37 CSSPrimitiveValue* left() const { return m_left.get(); } 38 39 void setTop(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> top) { m_top = top; } 40 void setRight(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> right) { m_right = right; } 41 void setBottom(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> bottom) { m_bottom = bottom; } 42 void setLeft(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> left) { m_left = left; } 43 44 bool equals(const RectBase& other) const 45 { 46 return compareCSSValuePtr(m_top, other.m_top) 47 && compareCSSValuePtr(m_right, other.m_right) 48 && compareCSSValuePtr(m_left, other.m_left) 49 && compareCSSValuePtr(m_bottom, other.m_bottom); 50 } 51 52 void trace(Visitor*); 53 54protected: 55 RectBase() { } 56 RectBase(const RectBase& cloneFrom) 57 : m_top(cloneFrom.m_top ? cloneFrom.m_top->cloneForCSSOM() : nullptr) 58 , m_right(cloneFrom.m_right ? cloneFrom.m_right->cloneForCSSOM() : nullptr) 59 , m_bottom(cloneFrom.m_bottom ? cloneFrom.m_bottom->cloneForCSSOM() : nullptr) 60 , m_left(cloneFrom.m_left ? cloneFrom.m_left->cloneForCSSOM() : nullptr) 61 { 62 } 63 64private: 65 RefPtrWillBeMember<CSSPrimitiveValue> m_top; 66 RefPtrWillBeMember<CSSPrimitiveValue> m_right; 67 RefPtrWillBeMember<CSSPrimitiveValue> m_bottom; 68 RefPtrWillBeMember<CSSPrimitiveValue> m_left; 69}; 70 71class Rect : public RectBase { 72public: 73 static PassRefPtrWillBeRawPtr<Rect> create() { return adoptRefWillBeNoop(new Rect); } 74 75 PassRefPtrWillBeRawPtr<Rect> cloneForCSSOM() const { return adoptRefWillBeNoop(new Rect(*this)); } 76 77 String cssText() const 78 { 79 return generateCSSString(top()->cssText(), right()->cssText(), bottom()->cssText(), left()->cssText()); 80 } 81 82private: 83 Rect() { } 84 Rect(const Rect& cloneFrom) : RectBase(cloneFrom) { } 85 static String generateCSSString(const String& top, const String& right, const String& bottom, const String& left) 86 { 87 return "rect(" + top + ' ' + right + ' ' + bottom + ' ' + left + ')'; 88 } 89 90 // NOTE: If adding fields to this class please make the RectBase trace 91 // method virtual and add a trace method in this subclass tracing the new 92 // fields. 93}; 94 95class Quad : public RectBase { 96public: 97 static PassRefPtrWillBeRawPtr<Quad> create() { return adoptRefWillBeNoop(new Quad); } 98 99 PassRefPtrWillBeRawPtr<Quad> cloneForCSSOM() const { return adoptRefWillBeNoop(new Quad(*this)); } 100 101 String cssText() const 102 { 103 return generateCSSString(top()->cssText(), right()->cssText(), bottom()->cssText(), left()->cssText()); 104 } 105 106private: 107 Quad() { } 108 Quad(const Quad& cloneFrom) : RectBase(cloneFrom) { } 109 static String generateCSSString(const String& top, const String& right, const String& bottom, const String& left) 110 { 111 StringBuilder result; 112 // reserve space for the four strings, plus three space separator characters. 113 result.reserveCapacity(top.length() + right.length() + bottom.length() + left.length() + 3); 114 result.append(top); 115 if (right != top || bottom != top || left != top) { 116 result.append(' '); 117 result.append(right); 118 if (bottom != top || right != left) { 119 result.append(' '); 120 result.append(bottom); 121 if (left != right) { 122 result.append(' '); 123 result.append(left); 124 } 125 } 126 } 127 return result.toString(); 128 } 129 130 // NOTE: If adding fields to this class please make the RectBase trace 131 // method virtual and add a trace method in this subclass tracing the new 132 // fields. 133}; 134 135} // namespace blink 136 137#endif // Rect_h 138