parametermap.inl

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/*
    toxic - A Global Illumination Renderer
    Copyright (C) 2003-2004 Francois Beaune
    Contact: http://toxicengine.sourceforge.net/

    This file is part of toxic.

    toxic is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    toxic 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with toxic; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

template<typename T> inline
T ParameterMap::GetValue(const std::string &name) const {
    return sheep::StringUtils::FromString<T>(Find(name));
}

template<> inline
std::string ParameterMap::GetValue<std::string>(const std::string &name) const
    throw(InvalidKeyException, sheep::StringUtils::ConversionErrorException)
{
    return Find(name);
}

template<> inline
bool ParameterMap::GetValue<bool>(const std::string &name) const
    throw(InvalidKeyException, sheep::StringUtils::ConversionErrorException)
{
    const std::string value = Find(name);

    if(!sheep::StringUtils::CompareNoCase(value, "true"))
        return true;
    else if(!sheep::StringUtils::CompareNoCase(value, "false"))
        return false;
    else throw sheep::StringUtils::ConversionErrorException();
}

template<typename T> inline
T ParameterMap::GetOptionalValue(const std::string &name, const T &default_value) const {
    try {
        return GetValue<T>(name);
    }
    catch(InvalidKeyException) {
        return default_value;
    }
}

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