mitk: mitkSceneReader.cpp Source File

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00001 /*=========================================================================
00002 
00003 Program:   Medical Imaging & Interaction Toolkit
00004 Language:  C++
00005 Date:      $Date$
00006 Version:   $Revision: 18127 $
00007 
00008 Copyright (c) German Cancer Research Center, Division of Medical and
00009 Biological Informatics. All rights reserved.
00010 See MITKCopyright.txt or https://www.mitk.org/copyright.html for details.
00011 
00012 This software is distributed WITHOUT ANY WARRANTY; without even
00013 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00014 PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 
00018 #include "mitkSceneReader.h"
00019 
00020 bool mitk::SceneReader::LoadScene( TiXmlDocument& document, const std::string& workingDirectory, DataStorage* storage )
00021 {
00022   // find version node --> note version in some variable
00023   int fileVersion = 1;
00024   TiXmlElement* versionObject = document.FirstChildElement("Version");
00025   if (versionObject)
00026   {
00027     if ( versionObject->QueryIntAttribute( "FileVersion", &fileVersion ) != TIXML_SUCCESS )
00028     {
00029       MITK_ERROR << "Scene file " << workingDirectory + "/index.xml" << " does not contain version information! Trying version 1 format." << std::endl;
00030     }
00031   }
00032   
00033   std::stringstream sceneReaderClassName;
00034   sceneReaderClassName << "SceneReaderV" << fileVersion;
00035 
00036   std::list<itk::LightObject::Pointer> sceneReaders = itk::ObjectFactoryBase::CreateAllInstance(sceneReaderClassName.str().c_str());
00037   if (sceneReaders.size() < 1)
00038   {
00039     MITK_ERROR << "No scene reader found for scene file version " << fileVersion;
00040   }
00041   if (sceneReaders.size() > 1)
00042   {
00043     MITK_WARN << "Multiple scene readers found for scene file version " << fileVersion << ". Using arbitrary first one.";
00044   }
00045 
00046   for ( std::list<itk::LightObject::Pointer>::iterator iter = sceneReaders.begin();
00047         iter != sceneReaders.end();
00048         ++iter )
00049   {
00050     if (SceneReader* reader = dynamic_cast<SceneReader*>( iter->GetPointer() ) )
00051     {
00052       if ( !reader->LoadScene( document, workingDirectory, storage ) )
00053       {
00054         MITK_ERROR << "There were errors while loding scene file " << workingDirectory + "/index.xml. Your data may be corrupted";
00055         return false;
00056       }
00057       else
00058       {
00059         return true;
00060       }
00061     }
00062   }
00063   return false;
00064 }