1 /* 2 Copyright (C) 2007 Eric Seidel <eric (at) webkit.org> 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 class Color; 29 30 class ColorDistance { 31 public: 32 ColorDistance(); 33 ColorDistance(const Color& fromColor, const Color& toColor); 34 ColorDistance(int redDiff, int blueDiff, int greenDiff); 35 36 ColorDistance scaledDistance(float scaleFactor) const; 37 Color addToColorAndClamp(const Color&) const; 38 39 static Color addColorsAndClamp(const Color&, const Color&); 40 41 bool isZero() const; 42 43 float distance() const; 44 45 private: 46 short m_redDiff; 47 short m_greenDiff; 48 short m_blueDiff; 49 }; 50 } 51 52 #endif // ENABLE(SVG) 53 #endif // ColorDistance_h 54
