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 
30 namespace WebCore {
31 
32 class CollapsedBorderValue {
33 friend class RenderStyle;
34 public:
CollapsedBorderValue()35     CollapsedBorderValue()
36         : m_border(0)
37         , m_precedence(BOFF)
38     {
39     }
40 
CollapsedBorderValue(const BorderValue * b,Color c,EBorderPrecedence p)41     CollapsedBorderValue(const BorderValue* b, Color c, EBorderPrecedence p)
42         : m_border(b)
43         , m_borderColor(c)
44         , m_precedence(p)
45     {
46     }
47 
width()48     int width() const { return m_border && m_border->nonZero() ? m_border->width() : 0; }
style()49     EBorderStyle style() const { return m_border ? m_border->style() : BHIDDEN; }
exists()50     bool exists() const { return m_border; }
color()51     const Color& color() const { return m_borderColor; }
isTransparent()52     bool isTransparent() const { return m_border ? m_border->isTransparent() : true; }
precedence()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 
64 private:
65     const BorderValue* m_border;
66     Color m_borderColor;
67     EBorderPrecedence m_precedence;
68 };
69 
70 } // namespace WebCore
71 
72 #endif // CollapsedBorderValue_h
73