File indexing completed on 2024-05-05 04:21:07
0001 0002 /* 0003 Copyright (c) 2003-2007 Clarence Dang <dang@kde.org> 0004 All rights reserved. 0005 0006 Redistribution and use in source and binary forms, with or without 0007 modification, are permitted provided that the following conditions 0008 are met: 0009 0010 1. Redistributions of source code must retain the above copyright 0011 notice, this list of conditions and the following disclaimer. 0012 2. Redistributions in binary form must reproduce the above copyright 0013 notice, this list of conditions and the following disclaimer in the 0014 documentation and/or other materials provided with the distribution. 0015 0016 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 0017 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 0018 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 0019 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 0020 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 0021 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 0022 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 0023 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 0024 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 0025 THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 0026 */ 0027 0028 0029 #define DEBUG_KP_COLOR 0 0030 0031 0032 #include "kpColor.h" 0033 0034 0035 static inline int RoundUp2 (int val) 0036 { 0037 return val % 2 ? val + 1 : val; 0038 } 0039 0040 static inline int Bound0_255 (int val) 0041 { 0042 return qBound (0, val, 255); 0043 } 0044 0045 0046 enum 0047 { 0048 BlendDark = 25, 0049 BlendNormal = 50, 0050 BlendLight = 75, 0051 BlendAdd = 100 0052 }; 0053 0054 // Adds the 2 given colors together and then multiplies by the given <percent>. 0055 static inline kpColor Blend (const kpColor &a, const kpColor &b, 0056 int percent = ::BlendNormal) 0057 { 0058 return kpColor (::Bound0_255 (::RoundUp2 (a.red () + b.red ()) * percent / 100), 0059 ::Bound0_255 (::RoundUp2 (a.green () + b.green ()) * percent / 100), 0060 ::Bound0_255 (::RoundUp2 (a.blue () + b.blue ()) * percent / 100)); 0061 } 0062 0063 static inline kpColor Add (const kpColor &a, const kpColor &b) 0064 { 0065 return ::Blend (a, b, ::BlendAdd); 0066 } 0067 0068 0069 // (intentionally _not_ an HSV darkener) 0070 static inline kpColor Dark (const kpColor &color) 0071 { 0072 return ::Blend (color, kpColor::Black); 0073 } 0074 0075 0076 // public static 0077 const int kpColor::Exact = 0; 0078 0079 // public static 0080 const kpColor kpColor::Invalid; // LOTODO: what's wrong with explicitly specifying () constructor? 0081 const kpColor kpColor::Transparent (0, 0, 0, true/*isTransparent*/); 0082 0083 0084 // 0085 // Make our own colors in case weird ones like "Qt::cyan" 0086 // (turquoise) get changed by Qt. 0087 // 0088 0089 0090 const kpColor kpColor::Red (255, 0, 0); 0091 const kpColor kpColor::Green (0, 255, 0); 0092 const kpColor kpColor::Blue (0, 0, 255); 0093 const kpColor kpColor::Black (0, 0, 0); 0094 const kpColor kpColor::White (255, 255, 255); 0095 0096 const kpColor kpColor::Yellow = ::Add (kpColor::Red, kpColor::Green); 0097 const kpColor kpColor::Purple = ::Add (kpColor::Red, kpColor::Blue); 0098 const kpColor kpColor::Aqua = ::Add (kpColor::Green, kpColor::Blue); 0099 0100 const kpColor kpColor::Gray = ::Blend (kpColor::Black, kpColor::White); 0101 const kpColor kpColor::LightGray = ::Blend (kpColor::Gray, kpColor::White); 0102 const kpColor kpColor::Orange = ::Blend (kpColor::Red, kpColor::Yellow); 0103 0104 const kpColor kpColor::Pink = ::Blend (kpColor::Red, kpColor::White); 0105 const kpColor kpColor::LightGreen = ::Blend (kpColor::Green, kpColor::White); 0106 const kpColor kpColor::LightBlue = ::Blend (kpColor::Blue, kpColor::White); 0107 const kpColor kpColor::Tan = ::Blend (kpColor::Yellow, kpColor::White); 0108 0109 const kpColor kpColor::DarkRed = ::Dark (kpColor::Red); 0110 const kpColor kpColor::DarkOrange = ::Dark (kpColor::Orange); 0111 const kpColor kpColor::Brown = kpColor::DarkOrange; 0112 const kpColor kpColor::DarkYellow = ::Dark (kpColor::Yellow); 0113 const kpColor kpColor::DarkGreen = ::Dark (kpColor::Green); 0114 const kpColor kpColor::DarkAqua = ::Dark (kpColor::Aqua); 0115 const kpColor kpColor::DarkBlue = ::Dark (kpColor::Blue); 0116 const kpColor kpColor::DarkPurple = ::Dark (kpColor::Purple); 0117 const kpColor kpColor::DarkGray = ::Dark (kpColor::Gray);