/** * @file llsdparam.h * @brief parameter block abstraction for creating complex objects and * parsing construction parameters from xml and LLSD * * $LicenseInfo:firstyear=2008&license=viewergpl$ * * Copyright (c) 2008-2009, Linden Research, Inc. * * Second Life Viewer Source Code * The source code in this file ("Source Code") is provided by Linden Lab * to you under the terms of the GNU General Public License, version 2.0 * ("GPL"), unless you have obtained a separate licensing agreement * ("Other License"), formally executed by you and Linden Lab. Terms of * the GPL can be found in doc/GPL-license.txt in this distribution, or * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 * * There are special exceptions to the terms and conditions of the GPL as * it is applied to this Source Code. View the full text of the exception * in the file doc/FLOSS-exception.txt in this software distribution, or * online at * http://secondlifegrid.net/programs/open_source/licensing/flossexception * * By copying, modifying or distributing this software, you acknowledge * that you have read and understood your obligations described above, * and agree to abide by those obligations. * * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, * COMPLETENESS OR PERFORMANCE. * $/LicenseInfo$ */ #ifndef LL_LLSDPARAM_H #define LL_LLSDPARAM_H #include "llinitparam.h" class LLParamSDParser : public LLInitParam::Parser, public LLSingleton<LLParamSDParser> { LOG_CLASS(LLParamSDParser); typedef LLInitParam::Parser parser_t; protected: LLParamSDParser(); friend class LLSingleton<LLParamSDParser>; public: void readSD(const LLSD& sd, LLInitParam::BaseBlock& block, bool silent = false); void writeSD(LLSD& sd, const LLInitParam::BaseBlock& block); /*virtual*/ std::string getCurrentElementName(); private: void readSDValues(const LLSD& sd, LLInitParam::BaseBlock& block); template<typename T> bool readTypedValue(void* val_ptr, boost::function<T(const LLSD&)> parser_func) { if (!mCurReadSD) return false; *((T*)val_ptr) = parser_func(*mCurReadSD); return true; } template<typename T> bool writeTypedValue(const void* val_ptr, const parser_t::name_stack_t& name_stack) { if (!mWriteSD) return false; LLSD* sd_to_write = getSDWriteNode(name_stack); if (!sd_to_write) return false; sd_to_write->assign(*((const T*)val_ptr)); return true; } LLSD* getSDWriteNode(const parser_t::name_stack_t& name_stack); bool readSDParam(void* value_ptr); bool writeU32Param(const void* value_ptr, const parser_t::name_stack_t& name_stack); Parser::name_stack_t mNameStack; const LLSD* mCurReadSD; LLSD* mWriteSD; }; template<typename T> class LLSDParamAdapter : public T { public: LLSDParamAdapter() {} LLSDParamAdapter(const LLSD& sd) { LLParamSDParser::instance().readSD(sd, *this); } LLSDParamAdapter(const T& val) { T::operator=(val); } }; #endif // LL_LLSDPARAM_H