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CEGUIDefaultResourceProvider.cpp

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00001 /************************************************************************
00002         filename:       CEGUIDefaultResourceProvider.cpp
00003         created:        8/7/2004
00004         author:         James '_mental_' O'Sullivan
00005         
00006         purpose:        Implements the Resource Manager common functionality
00007 *************************************************************************/
00008 /*************************************************************************
00009     Crazy Eddie's GUI System (http://www.cegui.org.uk)
00010     Copyright (C)2004 - 2005 Paul D Turner (paul@cegui.org.uk)
00011 
00012     This library is free software; you can redistribute it and/or
00013     modify it under the terms of the GNU Lesser General Public
00014     License as published by the Free Software Foundation; either
00015     version 2.1 of the License, or (at your option) any later version.
00016 
00017     This library is distributed in the hope that it will be useful,
00018     but WITHOUT ANY WARRANTY; without even the implied warranty of
00019     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00020     Lesser General Public License for more details.
00021 
00022     You should have received a copy of the GNU Lesser General Public
00023     License along with this library; if not, write to the Free Software
00024     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00025 *************************************************************************/
00026 #include "CEGUIDefaultResourceProvider.h"
00027 #include "CEGUIExceptions.h"
00028 
00029 #include <xercesc/framework/LocalFileInputSource.hpp>
00030 #include <xercesc/util/XMLString.hpp>
00031 #include <fstream>
00032 
00033 // Start of CEGUI namespace section
00034 namespace CEGUI
00035 {
00036 //    void DefaultResourceProvider::loadInputSourceContainer(const String& filename, InputSourceContainer& output)
00037 //    {
00038 //        if (filename.empty() || (filename == (utf8*)""))
00039 //        {
00040 //            throw InvalidRequestException((utf8*)
00041 //                "DefaultResourceProvider::load - Filename supplied for data loading must be valid");
00042 //        }
00043 //
00044 //        XERCES_CPP_NAMESPACE_USE
00045 //        XMLCh* pval = XMLString::transcode(filename.c_str());
00046 //        InputSource* mInputSource = new LocalFileInputSource(pval);
00047 //        XMLString::release(&pval);
00048 //
00049 //        output.setData(mInputSource);
00050 //    }
00051 
00052     void DefaultResourceProvider::loadRawDataContainer(const String& filename, RawDataContainer& output, const String& resourceGroup)
00053     {
00054         if (filename.empty() || (filename == (utf8*)""))
00055         {
00056             throw InvalidRequestException((utf8*)
00057                 "DefaultResourceProvider::load - Filename supplied for data loading must be valid");
00058         }
00059 
00060         std::ifstream dataFile(filename.c_str(), std::ios::binary|std::ios::ate);
00061         if( dataFile.fail())
00062         {
00063             throw InvalidRequestException((utf8*)
00064                 "DefaultResourceProvider::load - " + filename + " does not exist");
00065         }
00066         std::streampos size = dataFile.tellg();
00067         dataFile.seekg (0, std::ios::beg);
00068 
00069         unsigned char* buffer = new unsigned char [size];
00070 
00071         try {
00072             dataFile.read(reinterpret_cast<char*>(buffer), size);
00073         }
00074         catch(std::ifstream::failure e) {
00075             delete [] buffer;
00076             throw GenericException((utf8*)
00077                 "DefaultResourceProvider::loadRawDataContainer - Problem reading " + filename);
00078         }
00079 
00080         dataFile.close();
00081 
00082         //memcpy(container->getDataPtr(), buffer, size);
00083         output.setData(buffer);
00084         output.setSize(size);
00085         //delete [] buffer;
00086     }
00087 
00088 } // End of  CEGUI namespace section

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