phoenix-firestorm/indra/llui/llsdparam.h

105 lines
3.2 KiB
C++

/**
* @file llsdparam.h
* @brief parameter block abstraction for creating complex objects and
* parsing construction parameters from xml and LLSD
*
* $LicenseInfo:firstyear=2008&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLSDPARAM_H
#define LL_LLSDPARAM_H
#include "llinitparam.h"
class LLParamSDParser
: public LLInitParam::Parser
{
LOG_CLASS(LLParamSDParser);
typedef LLInitParam::Parser parser_t;
public:
LLParamSDParser();
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>
static bool writeTypedValue(Parser& parser, const void* val_ptr, const parser_t::name_stack_t& name_stack)
{
LLParamSDParser& sdparser = static_cast<LLParamSDParser&>(parser);
if (!sdparser.mWriteRootSD) return false;
LLSD* sd_to_write = sdparser.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);
static bool writeU32Param(Parser& parser, const void* value_ptr, const parser_t::name_stack_t& name_stack);
static bool writeNoValue(Parser& parser, const void* value_ptr, const parser_t::name_stack_t& name_stack);
static bool readNoValue(Parser& parser, void* val_ptr);
static bool readS32(Parser& parser, void* val_ptr);
static bool readU32(Parser& parser, void* val_ptr);
static bool readF32(Parser& parser, void* val_ptr);
static bool readF64(Parser& parser, void* val_ptr);
static bool readBool(Parser& parser, void* val_ptr);
static bool readString(Parser& parser, void* val_ptr);
static bool readUUID(Parser& parser, void* val_ptr);
static bool readDate(Parser& parser, void* val_ptr);
static bool readURI(Parser& parser, void* val_ptr);
static bool readSD(Parser& parser, void* val_ptr);
Parser::name_stack_t mNameStack;
const LLSD* mCurReadSD;
LLSD* mWriteRootSD;
LLSD* mCurWriteSD;
};
template<typename T>
class LLSDParamAdapter : public T
{
public:
LLSDParamAdapter() {}
LLSDParamAdapter(const LLSD& sd)
{
LLParamSDParser parser;
parser.readSD(sd, *this);
}
LLSDParamAdapter(const T& val)
{
T::operator=(val);
}
};
#endif // LL_LLSDPARAM_H