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00001 /***************************************************************************** 00002 * 00003 * This file is part of Mapnik (c++ mapping toolkit) 00004 * 00005 * Copyright (C) 2006 Artem Pavlenko 00006 * 00007 * This library is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * This library is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with this library; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00020 * 00021 *****************************************************************************/ 00022 00023 //$Id$ 00024 00025 #ifndef COLOR_FACTORY_HPP 00026 #define COLOR_FACTORY_HPP 00027 00028 #include <mapnik/config.hpp> 00029 #include <mapnik/css_color_parser.hpp> 00030 #include <mapnik/config_error.hpp> 00031 00032 using namespace boost::spirit; 00033 00034 namespace mapnik { 00035 class MAPNIK_DECL color_factory 00036 { 00037 public: 00038 static Color from_string(char const* css_color) 00039 { 00040 Color color; 00041 actions<Color> a(color); 00042 css_color_grammar<actions<Color> > grammar(a); 00043 parse_info<> info = parse(css_color, grammar, space_p); 00044 if ( ! info.full) { 00045 throw config_error(std::string("Failed to parse color value: ") + 00046 "Expected a color, but got '" + css_color + "'"); 00047 } 00048 return color; 00049 } 00050 private: 00051 color_factory(); 00052 color_factory(color_factory const&); 00053 color_factory& operator=(color_factory const&); 00054 }; 00055 } 00056 00057 #endif //COLOR_FACTORY_HPP