1/* 2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) 3 * (C) 2000 Antti Koivisto (koivisto@kde.org) 4 * (C) 2000 Dirk Mueller (mueller@kde.org) 5 * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. 6 * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com) 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public License 19 * along with this library; see the file COPYING.LIB. If not, write to 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 21 * Boston, MA 02110-1301, USA. 22 * 23 */ 24 25#ifndef BorderValue_h 26#define BorderValue_h 27 28#include "Color.h" 29#include "RenderStyleConstants.h" 30 31namespace WebCore { 32 33class BorderValue { 34friend class RenderStyle; 35public: 36 BorderValue() 37 : m_width(3) 38 , m_color(0) 39 , m_colorIsValid(false) 40 , m_style(BNONE) 41 , m_isAuto(AUTO_OFF) 42 { 43 } 44 45 bool nonZero(bool checkStyle = true) const 46 { 47 return width() && (!checkStyle || m_style != BNONE); 48 } 49 50 bool isTransparent() const 51 { 52 return m_colorIsValid && !alphaChannel(m_color); 53 } 54 55 bool isVisible(bool checkStyle = true) const 56 { 57 return nonZero(checkStyle) && !isTransparent() && (!checkStyle || m_style != BHIDDEN); 58 } 59 60 bool operator==(const BorderValue& o) const 61 { 62 return m_width == o.m_width && m_style == o.m_style && m_color == o.m_color && m_colorIsValid == o.m_colorIsValid; 63 } 64 65 bool operator!=(const BorderValue& o) const 66 { 67 return !(*this == o); 68 } 69 70 void setColor(const Color& color) 71 { 72 m_color = color.rgb(); 73 m_colorIsValid = color.isValid(); 74 } 75 76 Color color() const { return Color(m_color, m_colorIsValid); } 77 78 float width() const { return m_width; } 79 EBorderStyle style() const { return static_cast<EBorderStyle>(m_style); } 80 81protected: 82 float m_width; 83 RGBA32 m_color; 84 unsigned m_colorIsValid : 1; 85 86 unsigned m_style : 4; // EBorderStyle 87 88 // This is only used by OutlineValue but moved here to keep the bits packed. 89 unsigned m_isAuto : 1; // OutlineIsAuto 90}; 91 92} // namespace WebCore 93 94#endif // BorderValue_h 95