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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, 2009 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 ShadowData_h
26 #define ShadowData_h
27 
28 #include "platform/geometry/FloatPoint.h"
29 #include "platform/graphics/Color.h"
30 
31 namespace blink {
32 
33 enum ShadowStyle { Normal, Inset };
34 
35 // This class holds information about shadows for the text-shadow and box-shadow properties.
36 class ShadowData {
37     WTF_MAKE_FAST_ALLOCATED;
38 public:
ShadowData(const FloatPoint & location,float blur,float spread,ShadowStyle style,const Color & color)39     ShadowData(const FloatPoint& location, float blur, float spread, ShadowStyle style, const Color& color)
40         : m_location(location)
41         , m_blur(blur)
42         , m_spread(spread)
43         , m_color(color)
44         , m_style(style)
45     {
46     }
47 
48     bool operator==(const ShadowData&) const;
49     bool operator!=(const ShadowData& o) const { return !(*this == o); }
50 
51     ShadowData blend(const ShadowData& from, double progress) const;
52 
x()53     float x() const { return m_location.x(); }
y()54     float y() const { return m_location.y(); }
location()55     FloatPoint location() const { return m_location; }
blur()56     float blur() const { return m_blur; }
spread()57     float spread() const { return m_spread; }
style()58     ShadowStyle style() const { return m_style; }
color()59     const Color& color() const { return m_color; }
60 
61 private:
62     FloatPoint m_location;
63     float m_blur;
64     float m_spread;
65     // FIXME: We should use StyleColor here to allow currentColor to work correctly with visited links
66     Color m_color;
67     ShadowStyle m_style;
68 };
69 
70 } // namespace blink
71 
72 #endif // ShadowData_h
73