CollapsedBorderValue.h   [plain text]

/*
 * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
 *           (C) 2000 Antti Koivisto (koivisto@kde.org)
 *           (C) 2000 Dirk Mueller (mueller@kde.org)
 * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
 * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 */

#ifndef CollapsedBorderValue_h
#define CollapsedBorderValue_h

#include "BorderValue.h"

namespace WebCore {

class CollapsedBorderValue {
public:
    CollapsedBorderValue()
        : m_precedence(BOFF)
    {
    }

    // This copy constructor is for preventing GCC (x86) from creating an
    // unexpected one as written in <http://webkit.org/b/81502>.
    CollapsedBorderValue(const CollapsedBorderValue& other)
        : m_border(other.m_border)
        , m_borderColor(other.m_borderColor)
        , m_precedence(other.m_precedence)
    {
    }

    CollapsedBorderValue(const BorderValue& b, Color c, EBorderPrecedence p)
        : m_border(b)
        , m_borderColor(c)
        , m_precedence(p)
    {
    }

    int width() const { return m_border.nonZero() ? m_border.width() : 0; }
    EBorderStyle style() const { return m_border.style(); }
    bool exists() const { return m_precedence != BOFF; }
    const Color& color() const { return m_borderColor; }
    bool isTransparent() const { return m_border.isTransparent(); }
    EBorderPrecedence precedence() const { return m_precedence; }

    bool isSameIgnoringColor(const CollapsedBorderValue& o) const
    {
        return m_border.width() == o.m_border.width() && m_border.style() == o.m_border.style() && m_precedence == o.m_precedence;
    }

private:
    BorderValue m_border;
    Color m_borderColor;
    EBorderPrecedence m_precedence;
};

} // namespace WebCore

#endif // CollapsedBorderValue_h