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 50protected: 51 RectBase() { } 52 RectBase(const RectBase& cloneFrom) 53 : m_top(cloneFrom.m_top ? cloneFrom.m_top->cloneForCSSOM() : 0) 54 , m_right(cloneFrom.m_right ? cloneFrom.m_right->cloneForCSSOM() : 0) 55 , m_bottom(cloneFrom.m_bottom ? cloneFrom.m_bottom->cloneForCSSOM() : 0) 56 , m_left(cloneFrom.m_left ? cloneFrom.m_left->cloneForCSSOM() : 0) 57 { 58 } 59 60 ~RectBase() { } 61 62private: 63 RefPtr<CSSPrimitiveValue> m_top; 64 RefPtr<CSSPrimitiveValue> m_right; 65 RefPtr<CSSPrimitiveValue> m_bottom; 66 RefPtr<CSSPrimitiveValue> m_left; 67}; 68 69class Rect : public RectBase, public RefCounted<Rect> { 70public: 71 static PassRefPtr<Rect> create() { return adoptRef(new Rect); } 72 73 PassRefPtr<Rect> cloneForCSSOM() const { return adoptRef(new Rect(*this)); } 74 75 String cssText() const 76 { 77 return generateCSSString(top()->cssText(), right()->cssText(), bottom()->cssText(), left()->cssText()); 78 } 79 80private: 81 Rect() { } 82 Rect(const Rect& cloneFrom) : RectBase(cloneFrom), RefCounted<Rect>() { } 83 static String generateCSSString(const String& top, const String& right, const String& bottom, const String& left) 84 { 85 return "rect(" + top + ", " + right + ", " + bottom + ", " + left + ')'; 86 } 87}; 88 89class Quad : public RectBase, public RefCounted<Quad> { 90public: 91 static PassRefPtr<Quad> create() { return adoptRef(new Quad); } 92 93 PassRefPtr<Quad> cloneForCSSOM() const { return adoptRef(new Quad(*this)); } 94 95 String cssText() const 96 { 97 return generateCSSString(top()->cssText(), right()->cssText(), bottom()->cssText(), left()->cssText()); 98 } 99 100private: 101 Quad() { } 102 Quad(const Quad& cloneFrom) : RectBase(cloneFrom), RefCounted<Quad>() { } 103 static String generateCSSString(const String& top, const String& right, const String& bottom, const String& left) 104 { 105 StringBuilder result; 106 // reserve space for the four strings, plus three space separator characters. 107 result.reserveCapacity(top.length() + right.length() + bottom.length() + left.length() + 3); 108 result.append(top); 109 if (right != top || bottom != top || left != top) { 110 result.append(' '); 111 result.append(right); 112 if (bottom != top || right != left) { 113 result.append(' '); 114 result.append(bottom); 115 if (left != right) { 116 result.append(' '); 117 result.append(left); 118 } 119 } 120 } 121 return result.toString(); 122 } 123}; 124 125} // namespace WebCore 126 127#endif // Rect_h 128