include/package/Deflater.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
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  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_PACKAGE_DEFLATER_HXX
  21 #define INCLUDED_PACKAGE_DEFLATER_HXX
  22
  23 #include <com/sun/star/uno/Sequence.hxx>
  24 #include <package/packagedllapi.hxx>
  25 #include <memory>
  26
  27 struct z_stream_s;
  28
  29 namespace ZipUtils {
  30
  31 class DLLPUBLIC_PACKAGE Deflater final
  32 {
  33     typedef struct z_stream_s z_stream;
  34
  35     css::uno::Sequence< sal_Int8 > sInBuffer;
  36     bool                    bFinish;
  37     bool                    bFinished;
  38     sal_Int64               nOffset, nLength;
  39     std::unique_ptr<z_stream> pStream;
  40
  41     void init (sal_Int32 nLevel, bool bNowrap);
  42     sal_Int32 doDeflateBytes (css::uno::Sequence < sal_Int8 > &rBuffer, sal_Int32 nNewOffset, sal_Int32 nNewLength);
  43
  44 public:
  45     ~Deflater();
  46     Deflater(sal_Int32 nSetLevel, bool bNowrap);
  47     void setInputSegment( const css::uno::Sequence< sal_Int8 >& rBuffer );
  48     bool needsInput() const;
  49     void finish(  );
  50     bool finished() const { return bFinished;}
  51     sal_Int32 doDeflateSegment( css::uno::Sequence< sal_Int8 >& rBuffer, sal_Int32 nNewLength );
  52     sal_Int64 getTotalIn() const;
  53     sal_Int64 getTotalOut() const;
  54     void reset(  );
  55     void end(  );
  56 };
  57
  58 }
  59
  60 #endif
  61
  62 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */