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 CollapsedBorderValue_h
26#define CollapsedBorderValue_h
27
28#include "BorderValue.h"
29
30namespace WebCore {
31
32class CollapsedBorderValue {
33friend class RenderStyle;
34public:
35    CollapsedBorderValue()
36        : m_border(0)
37        , m_precedence(BOFF)
38    {
39    }
40
41    CollapsedBorderValue(const BorderValue* b, Color c, EBorderPrecedence p)
42        : m_border(b)
43        , m_borderColor(c)
44        , m_precedence(p)
45    {
46    }
47
48    int width() const { return m_border && m_border->nonZero() ? m_border->width() : 0; }
49    EBorderStyle style() const { return m_border ? m_border->style() : BHIDDEN; }
50    bool exists() const { return m_border; }
51    const Color& color() const { return m_borderColor; }
52    bool isTransparent() const { return m_border ? m_border->isTransparent() : true; }
53    EBorderPrecedence precedence() const { return m_precedence; }
54
55    bool operator==(const CollapsedBorderValue& o) const
56    {
57        if (!m_border)
58            return !o.m_border;
59        if (!o.m_border)
60            return false;
61        return *m_border == *o.m_border && m_borderColor == o.m_borderColor && m_precedence == o.m_precedence;
62    }
63
64private:
65    const BorderValue* m_border;
66    Color m_borderColor;
67    EBorderPrecedence m_precedence;
68};
69
70} // namespace WebCore
71
72#endif // CollapsedBorderValue_h
73