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 "CSSPrimitiveValue.h" 25#include <wtf/RefPtr.h> 26#include <wtf/text/StringBuilder.h> 27 28namespace WebCore { 29 30class RectBase { 31public: 32 CSSPrimitiveValue* top() const { return m_top.get(); } 33 CSSPrimitiveValue* right() const { return m_right.get(); } 34 CSSPrimitiveValue* bottom() const { return m_bottom.get(); } 35 CSSPrimitiveValue* left() const { return m_left.get(); } 36 37 void setTop(PassRefPtr<CSSPrimitiveValue> top) { m_top = top; } 38 void setRight(PassRefPtr<CSSPrimitiveValue> right) { m_right = right; } 39 void setBottom(PassRefPtr<CSSPrimitiveValue> bottom) { m_bottom = bottom; } 40 void setLeft(PassRefPtr<CSSPrimitiveValue> left) { m_left = left; } 41 42 bool equals(const RectBase& other) const 43 { 44 return compareCSSValuePtr(m_top, other.m_top) 45 && compareCSSValuePtr(m_right, other.m_right) 46 && compareCSSValuePtr(m_left, other.m_left) 47 && compareCSSValuePtr(m_bottom, other.m_bottom); 48 } 49 50#if ENABLE(CSS_VARIABLES) 51 bool hasVariableReference() const 52 { 53 return m_top->hasVariableReference() 54 || m_right->hasVariableReference() 55 || m_bottom->hasVariableReference() 56 || m_left->hasVariableReference(); 57 } 58#endif 59 60protected: 61 RectBase() { } 62 RectBase(const RectBase& cloneFrom) 63 : m_top(cloneFrom.m_top ? cloneFrom.m_top->cloneForCSSOM() : 0) 64 , m_right(cloneFrom.m_right ? cloneFrom.m_right->cloneForCSSOM() : 0) 65 , m_bottom(cloneFrom.m_bottom ? cloneFrom.m_bottom->cloneForCSSOM() : 0) 66 , m_left(cloneFrom.m_left ? cloneFrom.m_left->cloneForCSSOM() : 0) 67 { 68 } 69 70 ~RectBase() { } 71 72private: 73 RefPtr<CSSPrimitiveValue> m_top; 74 RefPtr<CSSPrimitiveValue> m_right; 75 RefPtr<CSSPrimitiveValue> m_bottom; 76 RefPtr<CSSPrimitiveValue> m_left; 77}; 78 79class Rect : public RectBase, public RefCounted<Rect> { 80public: 81 static PassRefPtr<Rect> create() { return adoptRef(new Rect); } 82 83 PassRefPtr<Rect> cloneForCSSOM() const { return adoptRef(new Rect(*this)); } 84 85 String cssText() const 86 { 87 return generateCSSString(top()->cssText(), right()->cssText(), bottom()->cssText(), left()->cssText()); 88 } 89 90#if ENABLE(CSS_VARIABLES) 91 String serializeResolvingVariables(const HashMap<AtomicString, String>& variables) const 92 { 93 return generateCSSString(top()->customSerializeResolvingVariables(variables), 94 right()->customSerializeResolvingVariables(variables), 95 bottom()->customSerializeResolvingVariables(variables), 96 left()->customSerializeResolvingVariables(variables)); 97 } 98#endif 99 100private: 101 Rect() { } 102 Rect(const Rect& cloneFrom) : RectBase(cloneFrom), RefCounted<Rect>() { } 103 static String generateCSSString(const String& top, const String& right, const String& bottom, const String& left) 104 { 105 return "rect(" + top + ' ' + right + ' ' + bottom + ' ' + left + ')'; 106 } 107}; 108 109class Quad : public RectBase, public RefCounted<Quad> { 110public: 111 static PassRefPtr<Quad> create() { return adoptRef(new Quad); } 112 113 PassRefPtr<Quad> cloneForCSSOM() const { return adoptRef(new Quad(*this)); } 114 115 String cssText() const 116 { 117 return generateCSSString(top()->cssText(), right()->cssText(), bottom()->cssText(), left()->cssText()); 118 } 119 120#if ENABLE(CSS_VARIABLES) 121 String serializeResolvingVariables(const HashMap<AtomicString, String>& variables) const 122 { 123 return generateCSSString(top()->customSerializeResolvingVariables(variables), 124 right()->customSerializeResolvingVariables(variables), 125 bottom()->customSerializeResolvingVariables(variables), 126 left()->customSerializeResolvingVariables(variables)); 127 } 128#endif 129 130private: 131 Quad() { } 132 Quad(const Quad& cloneFrom) : RectBase(cloneFrom), RefCounted<Quad>() { } 133 static String generateCSSString(const String& top, const String& right, const String& bottom, const String& left) 134 { 135 StringBuilder result; 136 // reserve space for the four strings, plus three space separator characters. 137 result.reserveCapacity(top.length() + right.length() + bottom.length() + left.length() + 3); 138 result.append(top); 139 if (right != top || bottom != top || left != top) { 140 result.append(' '); 141 result.append(right); 142 if (bottom != top || right != left) { 143 result.append(' '); 144 result.append(bottom); 145 if (left != right) { 146 result.append(' '); 147 result.append(left); 148 } 149 } 150 } 151 return result.toString(); 152 } 153}; 154 155} // namespace WebCore 156 157#endif // Rect_h 158