writerperfect/inc/WPXSvInputStream.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   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
  10 #pragma once
  11
  12 #include <librevenge-stream/librevenge-stream.h>
  13 #include <com/sun/star/uno/Reference.h>
  14 #include <tools/long.hxx>
  15 #include "writerperfectdllapi.h"
  16 #include <memory>
  17 #include <tools/stream.hxx>
  18 #include <sot/storage.hxx>
  19
  20 namespace com::sun::star::io
  21 {
  22 class XInputStream;
  23 class XSeekable;
  24 }
  25
  26 namespace writerperfect
  27 {
  28 struct OLEStorageImpl;
  29 struct ZipStorageImpl;
  30
  31 class SAL_DLLPUBLIC_RTTI WPXSvInputStream final : public librevenge::RVNGInputStream
  32 {
  33 public:
  34     WRITERPERFECT_DLLPUBLIC
  35     WPXSvInputStream(css::uno::Reference<css::io::XInputStream> const& xStream);
  36     WRITERPERFECT_DLLPUBLIC virtual ~WPXSvInputStream() override;
  37
  38     virtual bool isStructured() override;
  39     virtual unsigned subStreamCount() override;
  40     virtual const char* subStreamName(unsigned id) override;
  41     virtual bool existsSubStream(const char* name) override;
  42     virtual librevenge::RVNGInputStream* getSubStreamByName(const char* name) override;
  43     virtual librevenge::RVNGInputStream* getSubStreamById(unsigned id) override;
  44
  45     WRITERPERFECT_DLLPUBLIC virtual const unsigned char* read(unsigned long numBytes,
  46                                                               unsigned long& numBytesRead) override;
  47     WRITERPERFECT_DLLPUBLIC virtual int seek(long offset,
  48                                              librevenge::RVNG_SEEK_TYPE seekType) override;
  49     virtual long tell() override;
  50     virtual bool isEnd() override;
  51
  52 private:
  53     tools::Long tellImpl();
  54     int seek(tools::Long offset);
  55     bool isOLE();
  56     void ensureOLEIsInitialized();
  57     bool isZip();
  58     void ensureZipIsInitialized();
  59     static librevenge::RVNGInputStream*
  60     createWPXStream(const rtl::Reference<SotStorageStream>& rxStorage);
  61     static librevenge::RVNGInputStream*
  62     createWPXStream(const css::uno::Reference<css::io::XInputStream>& rxStream);
  63
  64     css::uno::Reference<css::io::XInputStream> mxStream;
  65     css::uno::Reference<css::io::XSeekable> mxSeekable;
  66     css::uno::Sequence<sal_Int8> maData;
  67     std::unique_ptr<OLEStorageImpl> mpOLEStorage;
  68     std::unique_ptr<ZipStorageImpl> mpZipStorage;
  69     sal_Int64 mnLength;
  70     unsigned long mnReadBufferPos;
  71     bool mbCheckedOLE;
  72     bool mbCheckedZip;
  73 };
  74 }
  75
  76 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */