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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>wg_color.cpp Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.2.18 --><center><a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Data Structures</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="functions.html">Data Fields</a> </center><hr><h1>wg_color.cpp</h1><div class="fragment"><pre>00001 <span class="comment">// wg_color.cpp</span>00002 <span class="comment">//</span>00003 <span class="comment">// CRGBColor class</span>00004 <span class="comment">//</span>00005 <span class="comment">//</span>00006 <span class="comment">// Copyright (c) 2002 Rob Wiskow</span>00007 <span class="comment">// rob-dev@boxedchaos.com</span>00008 <span class="comment">//</span>00009 <span class="comment">// This library is free software; you can redistribute it and/or</span>00010 <span class="comment">// modify it under the terms of the GNU Lesser General Public</span>00011 <span class="comment">// License as published by the Free Software Foundation; either</span>00012 <span class="comment">// version 2.1 of the License, or (at your option) any later version.</span>00013 <span class="comment">//</span>00014 <span class="comment">// This library is distributed in the hope that it will be useful,</span>00015 <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span>00016 <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>00017 <span class="comment">// Lesser General Public License for more details.</span>00018 <span class="comment">//</span>00019 <span class="comment">// You should have received a copy of the GNU Lesser General Public</span>00020 <span class="comment">// License along with this library; if not, write to the Free Software</span>00021 <span class="comment">// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>00022 <span class="comment">//</span>00023 00024 00025 <span class="preprocessor">#include "wgui_include_config.h"</span>00026 <span class="preprocessor">#include "wg_color.h"</span>00027 00028 00029 <span class="keyword">namespace </span>wGui00030 {00031 <a name="l00032"></a><a class="code" href="classwGui_1_1CRGBColor.html#a1">00032</a> CRGBColor::CRGBColor(<span class="keyword">const</span> Uint32* pColorValue, <span class="keyword">const</span> SDL_PixelFormat* pFormat)00033 {00034 <a class="code" href="classwGui_1_1CRGBColor.html#m0">red</a> = static_cast<unsigned char>((pFormat->Rmask & *pColorValue) >> pFormat->Rshift);00035 <a class="code" href="classwGui_1_1CRGBColor.html#m1">green</a> = static_cast<unsigned char>((pFormat->Gmask & *pColorValue) >> pFormat->Gshift);00036 <a class="code" href="classwGui_1_1CRGBColor.html#m2">blue</a> = static_cast<unsigned char>((pFormat->Bmask & *pColorValue) >> pFormat->Bshift);00037 <a class="code" href="classwGui_1_1CRGBColor.html#m3">alpha</a> = static_cast<unsigned char>((pFormat->Amask & *pColorValue) >> pFormat->Ashift);00038 }00039 00040 <a name="l00041"></a><a class="code" href="classwGui_1_1CRGBColor.html#a5">00041</a> <a class="code" href="classwGui_1_1CRGBColor.html">CRGBColor</a>& CRGBColor::operator=(<span class="keyword">const</span> <a class="code" href="classwGui_1_1CRGBColor.html">CRGBColor</a>& c)00042 {00043 <a class="code" href="classwGui_1_1CRGBColor.html#m0">red</a> = c.<a class="code" href="classwGui_1_1CRGBColor.html#m0">red</a>;00044 <a class="code" href="classwGui_1_1CRGBColor.html#m1">green</a> = c.<a class="code" href="classwGui_1_1CRGBColor.html#m1">green</a>;00045 <a class="code" href="classwGui_1_1CRGBColor.html#m2">blue</a> = c.<a class="code" href="classwGui_1_1CRGBColor.html#m2">blue</a>;00046 <a class="code" href="classwGui_1_1CRGBColor.html#m3">alpha</a> = c.<a class="code" href="classwGui_1_1CRGBColor.html#m3">alpha</a>;00047 <span class="keywordflow">return</span> *<span class="keyword">this</span>;00048 }00049 00050 <a name="l00051"></a><a class="code" href="classwGui_1_1CRGBColor.html#a6">00051</a> <a class="code" href="classwGui_1_1CRGBColor.html">CRGBColor</a> CRGBColor::operator+(<span class="keyword">const</span> <a class="code" href="classwGui_1_1CRGBColor.html">CRGBColor</a>& c)<span class="keyword"> const</span>00052 <span class="keyword"></span>{00053 <span class="keywordtype">double</span> fg_ratio = static_cast<double>(c.<a class="code" href="classwGui_1_1CRGBColor.html#m3">alpha</a>) / 0xFF;00054 <span class="keywordtype">double</span> bg_ratio = static_cast<double>(0xFF - c.<a class="code" href="classwGui_1_1CRGBColor.html#m3">alpha</a>) / 0xFF;00055 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> new_red = static_cast<unsigned char>(<a class="code" href="classwGui_1_1CRGBColor.html#m0">red</a> * bg_ratio + c.<a class="code" href="classwGui_1_1CRGBColor.html#m0">red</a> * fg_ratio);00056 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> new_green = static_cast<unsigned char>(<a class="code" href="classwGui_1_1CRGBColor.html#m1">green</a> * bg_ratio + c.<a class="code" href="classwGui_1_1CRGBColor.html#m1">green</a> * fg_ratio);00057 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> new_blue = static_cast<unsigned char>(<a class="code" href="classwGui_1_1CRGBColor.html#m2">blue</a> * bg_ratio + c.<a class="code" href="classwGui_1_1CRGBColor.html#m2">blue</a> * fg_ratio);00058 <span class="keywordflow">return</span> <a class="code" href="classwGui_1_1CRGBColor.html#a0">CRGBColor</a>(new_red, new_green, new_blue, <a class="code" href="classwGui_1_1CRGBColor.html#m3">alpha</a>);00059 }00060 00061 <a name="l00062"></a><a class="code" href="classwGui_1_1CRGBColor.html#a7">00062</a> <a class="code" href="classwGui_1_1CRGBColor.html">CRGBColor</a> CRGBColor::operator|(<span class="keyword">const</span> <a class="code" href="classwGui_1_1CRGBColor.html">CRGBColor</a>& c)<span class="keyword"> const</span>00063 <span class="keyword"></span>{00064 <span class="keywordflow">return</span> <a class="code" href="classwGui_1_1CRGBColor.html#a0">CRGBColor</a>(<a class="code" href="classwGui_1_1CRGBColor.html#m0">red</a> | c.<a class="code" href="classwGui_1_1CRGBColor.html#m0">red</a>, <a class="code" href="classwGui_1_1CRGBColor.html#m1">green</a> | c.<a class="code" href="classwGui_1_1CRGBColor.html#m1">green</a>, <a class="code" href="classwGui_1_1CRGBColor.html#m2">blue</a> | c.<a class="code" href="classwGui_1_1CRGBColor.html#m2">blue</a>, <a class="code" href="classwGui_1_1CRGBColor.html#m3">alpha</a> | c.<a class="code" href="classwGui_1_1CRGBColor.html#m3">alpha</a>);00065 }00066 00067 <a name="l00068"></a><a class="code" href="classwGui_1_1CRGBColor.html#a8">00068</a> <a class="code" href="classwGui_1_1CRGBColor.html">CRGBColor</a> CRGBColor::operator&(<span class="keyword">const</span> <a class="code" href="classwGui_1_1CRGBColor.html">CRGBColor</a>& c)<span class="keyword"> const</span>00069 <span class="keyword"></span>{00070 <span class="keywordflow">return</span> <a class="code" href="classwGui_1_1CRGBColor.html#a0">CRGBColor</a>(<a class="code" href="classwGui_1_1CRGBColor.html#m0">red</a> & c.<a class="code" href="classwGui_1_1CRGBColor.html#m0">red</a>, <a class="code" href="classwGui_1_1CRGBColor.html#m1">green</a> & c.<a class="code" href="classwGui_1_1CRGBColor.html#m1">green</a>, <a class="code" href="classwGui_1_1CRGBColor.html#m2">blue</a> & c.<a class="code" href="classwGui_1_1CRGBColor.html#m2">blue</a>, <a class="code" href="classwGui_1_1CRGBColor.html#m3">alpha</a> & c.<a class="code" href="classwGui_1_1CRGBColor.html#m3">alpha</a>);00071 }00072 00073 <a name="l00074"></a><a class="code" href="classwGui_1_1CRGBColor.html#a9">00074</a> <a class="code" href="classwGui_1_1CRGBColor.html">CRGBColor</a> CRGBColor::operator^(<span class="keyword">const</span> <a class="code" href="classwGui_1_1CRGBColor.html">CRGBColor</a>& c)<span class="keyword"> const</span>00075 <span class="keyword"></span>{00076 <span class="keywordflow">return</span> <a class="code" href="classwGui_1_1CRGBColor.html#a0">CRGBColor</a>(<a class="code" href="classwGui_1_1CRGBColor.html#m0">red</a> ^ c.<a class="code" href="classwGui_1_1CRGBColor.html#m0">red</a>, <a class="code" href="classwGui_1_1CRGBColor.html#m1">green</a> ^ c.<a class="code" href="classwGui_1_1CRGBColor.html#m1">green</a>, <a class="code" href="classwGui_1_1CRGBColor.html#m2">blue</a> ^ c.<a class="code" href="classwGui_1_1CRGBColor.html#m2">blue</a>, <a class="code" href="classwGui_1_1CRGBColor.html#m3">alpha</a> ^ c.<a class="code" href="classwGui_1_1CRGBColor.html#m3">alpha</a>);00077 }00078 00079 00080 CRGBColor DEFAULT_BG_COLOR = CRGBColor(0x60, 0x60, 0x60);00081 CRGBColor DEFAULT_FG_COLOR = CRGBColor(0xA0, 0xA0, 0xA0);00082 CRGBColor DEFAULT_LINE_COLOR = CRGBColor(0x00, 0x00, 0x00);00083 CRGBColor DEFAULT_DISABLED_LINE_COLOR = CRGBColor(0x40, 0x40, 0x40);00084 CRGBColor COLOR_TRANSPARENT = CRGBColor(0x00, 0x00, 0x00, 0x00);00085 CRGBColor COLOR_WHITE = CRGBColor(0xFF, 0xFF, 0xFF);00086 CRGBColor COLOR_LIGHTGRAY = CRGBColor(0xC0, 0xC0, 0xC0);00087 CRGBColor COLOR_GRAY = CRGBColor(0x80, 0x80, 0x80);00088 CRGBColor COLOR_DARKGRAY = CRGBColor(0x40, 0x40, 0x40);00089 CRGBColor COLOR_BLACK = CRGBColor(0x00, 0x00, 0x00);00090 CRGBColor COLOR_BLUE = CRGBColor(0x00, 0x00, 0xFF);00091 CRGBColor COLOR_RED = CRGBColor(0xFF, 0x00, 0x00);00092 CRGBColor COLOR_GREEN = CRGBColor(0x00, 0xFF, 0x00);00093 CRGBColor COLOR_YELLOW = CRGBColor(0xFF, 0xFF, 0x00);00094 00095 }00096 00097 </pre></div><hr><address style="align: right;"><small>Generated on Sat Oct 25 12:43:22 2003 for wGui by<a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border=0 width=110 height=53></a>1.2.18 </small></address></body></html>⌨️ 快捷键说明
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