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PowerPointDocumentExtractor.hpp

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/*==========================================================================
 * Copyright (c) 2003-2004 University of Massachusetts.  All Rights Reserved.
 *
 * Use of the Lemur Toolkit for Language Modeling and Information Retrieval
 * is subject to the terms of the software license set forth in the LICENSE
 * file included with this software, and also available at
 * http://www.lemurproject.org/license.html
 *
 *==========================================================================
*/


//
// PowerPointDocumentExtractor
//
// 14 June 2004 -- tds
//

#ifndef INDRI_POWERPOINTDOCUMENTEXTRACTOR_HPP
#define INDRI_POWERPOINTDOCUMENTEXTRACTOR_HPP
#ifdef WIN32
#include <string>
#include "indri/Buffer.hpp"
#include "indri/UnparsedDocument.hpp"
#undef WIN32_LEAN_AND_MEAN
#undef NOGDI
#include <windows.h>
#include <unknwn.h>
#include <oaidl.h>
#include "indri/DocumentIterator.hpp"

class PowerPointDocumentExtractor : public DocumentIterator {
private:
  IUnknown* _powerPointUnknown;
  IDispatch* _powerPointDispatch;
  IDispatch* _presentationsDispatch;
  UnparsedDocument _unparsedDocument;

  std::string _documentPath;
  Buffer _documentBuffer;
  bool _documentWaiting;

public:
  PowerPointDocumentExtractor();
  ~PowerPointDocumentExtractor();

  void open( const std::string& filename );
  UnparsedDocument* nextDocument();
  void close();
};
#endif // WIN32
#endif // INDRI_POWERPOINTDOCUMENTEXTRACTOR_HPP

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