package/inc/ByteChucker.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.
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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
  13  *   with this work for additional information regarding copyright
  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 #ifndef INCLUDED_PACKAGE_INC_BYTECHUCKER_HXX
  20 #define INCLUDED_PACKAGE_INC_BYTECHUCKER_HXX
  21
  22 #include <com/sun/star/uno/Sequence.h>
  23 #include <com/sun/star/uno/Reference.h>
  24 #include <com/sun/star/io/BufferSizeExceededException.hpp>
  25 #include <com/sun/star/io/IOException.hpp>
  26 #include <com/sun/star/io/NotConnectedException.hpp>
  27 #include <com/sun/star/uno/RuntimeException.hpp>
  28 #include <com/sun/star/lang/IllegalArgumentException.hpp>
  29
  30 namespace com { namespace sun { namespace star {
  31     namespace io { class XSeekable; class XOutputStream; }
  32 } } }
  33 class ByteChucker final
  34 {
  35     css::uno::Reference < css::io::XOutputStream > xStream;
  36     css::uno::Reference < css::io::XSeekable > xSeek;
  37     css::uno::Sequence < sal_Int8 > a2Sequence, a4Sequence;
  38     sal_Int8 * const p2Sequence, * const p4Sequence;
  39
  40 public:
  41     ByteChucker (css::uno::Reference<css::io::XOutputStream> const & xOstream);
  42     ~ByteChucker();
  43
  44     /// @throws css::io::NotConnectedException
  45     /// @throws css::io::BufferSizeExceededException
  46     /// @throws css::io::IOException
  47     /// @throws css::uno::RuntimeException
  48     void WriteBytes( const css::uno::Sequence< sal_Int8 >& aData );
  49
  50     /// @throws css::io::IOException
  51     /// @throws css::uno::RuntimeException
  52     sal_Int64 GetPosition();
  53
  54     void WriteInt16(sal_Int16 nInt16)
  55     {
  56         p2Sequence[0] = static_cast< sal_Int8 >((nInt16 >>  0 ) & 0xFF);
  57         p2Sequence[1] = static_cast< sal_Int8 >((nInt16 >>  8 ) & 0xFF);
  58         WriteBytes( a2Sequence );
  59     }
  60
  61     void WriteInt32(sal_Int32 nInt32)
  62     {
  63         p4Sequence[0] = static_cast< sal_Int8 >((nInt32 >>  0 ) & 0xFF);
  64         p4Sequence[1] = static_cast< sal_Int8 >((nInt32 >>  8 ) & 0xFF);
  65         p4Sequence[2] = static_cast< sal_Int8 >((nInt32 >> 16 ) & 0xFF);
  66         p4Sequence[3] = static_cast< sal_Int8 >((nInt32 >> 24 ) & 0xFF);
  67         WriteBytes( a4Sequence );
  68     }
  69
  70     void WriteUInt32(sal_uInt32 nuInt32)
  71     {
  72         p4Sequence[0] = static_cast < sal_Int8 > ((nuInt32 >>  0 ) & 0xFF);
  73         p4Sequence[1] = static_cast < sal_Int8 > ((nuInt32 >>  8 ) & 0xFF);
  74         p4Sequence[2] = static_cast < sal_Int8 > ((nuInt32 >> 16 ) & 0xFF);
  75         p4Sequence[3] = static_cast < sal_Int8 > ((nuInt32 >> 24 ) & 0xFF);
  76         WriteBytes( a4Sequence );
  77     }
  78 };
  79
  80 #endif
  81
  82 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */