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libsfml  1.6+dfsg2
Color.cpp
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00001 
00002 //
00003 // SFML - Simple and Fast Multimedia Library
00004 // Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
00005 //
00006 // This software is provided 'as-is', without any express or implied warranty.
00007 // In no event will the authors be held liable for any damages arising from the use of this software.
00008 //
00009 // Permission is granted to anyone to use this software for any purpose,
00010 // including commercial applications, and to alter it and redistribute it freely,
00011 // subject to the following restrictions:
00012 //
00013 // 1. The origin of this software must not be misrepresented;
00014 //    you must not claim that you wrote the original software.
00015 //    If you use this software in a product, an acknowledgment
00016 //    in the product documentation would be appreciated but is not required.
00017 //
00018 // 2. Altered source versions must be plainly marked as such,
00019 //    and must not be misrepresented as being the original software.
00020 //
00021 // 3. This notice may not be removed or altered from any source distribution.
00022 //
00024 
00026 // Headers
00028 #include <SFML/Graphics/Color.hpp>
00029 #include <algorithm>
00030 
00031 
00032 namespace sf
00033 {
00035 // Static member data
00037 const Color Color::Black(0, 0, 0);
00038 const Color Color::White(255, 255, 255);
00039 const Color Color::Red(255, 0, 0);
00040 const Color Color::Green(0, 255, 0);
00041 const Color Color::Blue(0, 0, 255);
00042 const Color Color::Yellow(255, 255, 0);
00043 const Color Color::Magenta(255, 0, 255);
00044 const Color Color::Cyan(0, 255, 255);
00045 
00046 
00050 Color::Color() :
00051 r(0),
00052 g(0),
00053 b(0),
00054 a(255)
00055 {
00056 
00057 }
00058 
00059 
00063 Color::Color(Uint8 R, Uint8 G, Uint8 B, Uint8 A) :
00064 r(R),
00065 g(G),
00066 b(B),
00067 a(A)
00068 {
00069 
00070 }
00071 
00072 
00076 Color& Color::operator +=(const Color& Other)
00077 {
00078     r = static_cast<Uint8>(std::min(r + Other.r, 255));
00079     g = static_cast<Uint8>(std::min(g + Other.g, 255));
00080     b = static_cast<Uint8>(std::min(b + Other.b, 255));
00081     a = static_cast<Uint8>(std::min(a + Other.a, 255));
00082 
00083     return *this;
00084 }
00085 
00086 
00090 Color& Color::operator *=(const Color& Other)
00091 {
00092     r = static_cast<Uint8>(r * Other.r / 255);
00093     g = static_cast<Uint8>(g * Other.g / 255);
00094     b = static_cast<Uint8>(b * Other.b / 255);
00095     a = static_cast<Uint8>(a * Other.a / 255);
00096 
00097     return *this;
00098 }
00099 
00100 
00104 bool Color::operator ==(const Color& Other) const
00105 {
00106     return (r == Other.r) && (g == Other.g) && (b == Other.b) && (a == Other.a);
00107 }
00108 
00109 
00113 bool Color::operator !=(const Color& Other) const
00114 {
00115     return (r != Other.r) || (g != Other.g) || (b != Other.b) || (a != Other.a);
00116 }
00117 
00118 
00122 Color operator +(const Color& Color1, const Color& Color2)
00123 {
00124     Color c = Color1;
00125     c += Color2;
00126 
00127     return c;
00128 }
00129 
00130 
00134 Color operator *(const Color& Color1, const Color& Color2)
00135 {
00136     Color c = Color1;
00137     c *= Color2;
00138 
00139     return c;
00140 }
00141 
00142 } // namespace sf