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#pragma once
26
27#include "Color.h"
28#include "RenderStyleConstants.h"
29
30namespace WebCore {
31
32class BorderValue {
33friend class RenderStyle;
34public:
35 BorderValue()
36 : m_style(static_cast<unsigned>(BorderStyle::None))
37 , m_isAuto(static_cast<unsigned>(OutlineIsAuto::Off))
38 {
39 }
40
41 bool nonZero(bool checkStyle = true) const
42 {
43 return width() && (!checkStyle || style() != BorderStyle::None);
44 }
45
46 bool isTransparent() const
47 {
48 return m_color.isValid() && !m_color.isVisible();
49 }
50
51 bool isVisible(bool checkStyle = true) const
52 {
53 return nonZero(checkStyle) && !isTransparent() && (!checkStyle || style() != BorderStyle::Hidden);
54 }
55
56 bool operator==(const BorderValue& o) const
57 {
58 return m_width == o.m_width && m_style == o.m_style && m_color == o.m_color;
59 }
60
61 bool operator!=(const BorderValue& o) const
62 {
63 return !(*this == o);
64 }
65
66 void setColor(const Color& color)
67 {
68 m_color = color;
69 }
70
71 const Color& color() const { return m_color; }
72
73 float width() const { return m_width; }
74 BorderStyle style() const { return static_cast<BorderStyle>(m_style); }
75
76 float boxModelWidth() const;
77
78protected:
79 Color m_color;
80
81 float m_width { 3 };
82
83 unsigned m_style : 4; // BorderStyle
84
85 // This is only used by OutlineValue but moved here to keep the bits packed.
86 unsigned m_isAuto : 1; // OutlineIsAuto
87};
88
89inline float BorderValue::boxModelWidth() const
90{
91 auto style = this->style();
92 if (style == BorderStyle::None || style == BorderStyle::Hidden)
93 return 0;
94
95 return width();
96}
97
98} // namespace WebCore
99