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palette.cpp

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00001 /*
00002 Copyright (c) 2002 Xavier Trochu
00003 
00004 This software is provided 'as-is', without any express or implied warranty. In no event
00005 will the authors be held liable for any damages arising from the use of this software.
00006 
00007 Permission is granted to anyone to use this software for any purpose, including commercial
00008 applications, and to alter it and redistribute it freely, subject to the following
00009 restrictions:
00010 
00011 1. The origin of this software must not be misrepresented; you must not claim that you
00012    wrote the original software. If you use this software in a product, an acknowledgment
00013    in the product documentation would be appreciated but is not required.
00014 
00015 2. Altered source versions must be plainly marked as such, and must not be misrepresented 
00016    as being the original software.
00017 
00018 3. This notice may not be removed or altered from any source distribution.
00019 */
00020 #include "palette.h"
00021 
00022 using namespace std;
00023 
00024 palette::palette() throw(exception) : _colors(256) {
00025 }
00026 
00027 palette::palette(unsigned char * ptr) throw(exception) : _colors(256) {
00028     for(int i = 0; i < 256; i++) {
00029         _colors[i] = color(ptr[3*i+0], ptr[3*i+1], ptr[3*i+2]);
00030     }
00031 }
00032 
00033 palette::palette(const palette & p) throw(exception) : _colors(256) {
00034     _colors = p._colors;
00035 }
00036 
00037 const color & palette::operator[](int a) const throw(exception) {
00038     return _colors.at(a);
00039 }
00040 
00041 color & palette::operator[](int a) throw(exception) {
00042     return _colors.at(a);
00043 }
00044 
00045 palette & palette::operator=(const palette & p) throw() {
00046     _colors = p._colors;
00047     return *this;
00048 }
00049 
00050 ostream & operator <<(ostream & o, const palette & p) {
00051     o << "PALETTE[" << endl;
00052     for(int i = 0; i < 256; i++)
00053     {
00054         o << "\t" << i << " = " << p[i] << endl;
00055     }
00056     o << "]" << endl;
00057     return o;
00058 }

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