KHtml

ColorDistance.h
1 /*
2  Copyright (C) 2007 Eric Seidel <[email protected]>
3 
4  This file is part of the WebKit project
5 
6  This library is free software; you can redistribute it and/or
7  modify it under the terms of the GNU Library General Public
8  License as published by the Free Software Foundation; either
9  version 2 of the License, or (at your option) any later version.
10 
11  This library is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  Library General Public License for more details.
15 
16  You should have received a copy of the GNU Library General Public License
17  along with this library; see the file COPYING.LIB. If not, write to
18  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19  Boston, MA 02110-1301, USA.
20  */
21 
22 #ifndef ColorDistance_h
23 #define ColorDistance_h
24 #if ENABLE(SVG)
25 
26 namespace WebCore
27 {
28 
29 class Color;
30 
31 class ColorDistance
32 {
33 public:
34  ColorDistance();
35  ColorDistance(const Color &fromColor, const Color &toColor);
36  ColorDistance(int redDiff, int blueDiff, int greenDiff);
37 
38  ColorDistance scaledDistance(float scaleFactor) const;
39  Color addToColorAndClamp(const Color &) const;
40 
41  static Color addColorsAndClamp(const Color &, const Color &);
42 
43  bool isZero() const;
44 
45  float distance() const;
46 
47 private:
48  short m_redDiff;
49  short m_greenDiff;
50  short m_blueDiff;
51 };
52 }
53 
54 #endif // ENABLE(SVG)
55 #endif // ColorDistance_h
int distance(const GeoCoordinates &coord1, const GeoCoordinates &coord2)
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