LCOV - code coverage report
Current view: top level - libreoffice/solver/unxlngi6.pro/inc/oox/helper - binaryoutputstream.hxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 13 14 92.9 %
Date: 2012-12-27 Functions: 15 19 78.9 %
Legend: Lines: hit not hit

          Line data    Source code
       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             :  * 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             : 
      20             : #ifndef OOX_HELPER_BINARYOUTPUTSTREAM_HXX
      21             : #define OOX_HELPER_BINARYOUTPUTSTREAM_HXX
      22             : 
      23             : #include "oox/helper/binarystreambase.hxx"
      24             : 
      25             : namespace com { namespace sun { namespace star {
      26             :     namespace io { class XOutputStream; }
      27             : } } }
      28             : 
      29             : namespace oox {
      30             : 
      31             : // ============================================================================
      32             : 
      33             : /** Interface for binary output stream classes.
      34             : 
      35             :     The binary data in the stream is written in little-endian format.
      36             :  */
      37         154 : class BinaryOutputStream : public virtual BinaryStreamBase
      38             : {
      39             : public:
      40             :     /** Derived classes implement writing the contents of the passed data
      41             :         sequence.
      42             : 
      43             :         @param nAtomSize
      44             :             The size of the elements in the memory block, if available. Derived
      45             :             classes may be interested in this information.
      46             :      */
      47             :     virtual void        writeData( const StreamDataSequence& rData, size_t nAtomSize = 1 ) = 0;
      48             : 
      49             :     /** Derived classes implement writing the contents of the (preallocated!)
      50             :         memory buffer pMem.
      51             : 
      52             :         @param nAtomSize
      53             :             The size of the elements in the memory block, if available. Derived
      54             :             classes may be interested in this information.
      55             :      */
      56             :     virtual void        writeMemory( const void* pMem, sal_Int32 nBytes, size_t nAtomSize = 1 ) = 0;
      57             : 
      58             :     /** Writes a value to the stream and converts it to platform byte order.
      59             :         All data types supported by the ByteOrderConverter class can be used.
      60             :      */
      61             :     template< typename Type >
      62             :     void                writeValue( Type nValue );
      63             : 
      64             :     template< typename Type >
      65             :     void writeArray( Type* opnArray, sal_Int32 nElemCount );
      66             : 
      67             :     /** Stream operator for all data types supported by the writeValue() function. */
      68             :     template< typename Type >
      69          12 :     inline BinaryOutputStream& operator<<( Type nValue ) { writeValue( nValue ); return *this; }
      70             : 
      71             :     void writeCompressedUnicodeArray( const ::rtl::OUString& rString, bool bCompressed, bool bAllowNulChars = false );
      72             : 
      73             :     void writeCharArrayUC( const ::rtl::OUString& rString, rtl_TextEncoding eTextEnc, bool bAllowNulChars = false );
      74             : 
      75             :     void writeUnicodeArray( const ::rtl::OUString& rString, bool bAllowNulChars = false );
      76             : 
      77             : protected:
      78             :     /** This dummy default c'tor will never call the c'tor of the virtual base
      79             :         class BinaryStreamBase as this class cannot be instanciated directly. */
      80         154 :     inline explicit     BinaryOutputStream() : BinaryStreamBase( false ) {}
      81             : };
      82             : 
      83             : template< typename Type >
      84           1 : void BinaryOutputStream::writeArray( Type* opnArray, sal_Int32 nElemCount )
      85             : {
      86           1 :     sal_Int32 nWriteSize = getLimitedValue< sal_Int32, sal_Int32 >( nElemCount, 0, SAL_MAX_INT32 / sizeof( Type ) ) * sizeof( Type );
      87           1 :     ByteOrderConverter::convertLittleEndianArray( opnArray, static_cast< size_t >( nWriteSize ) );
      88           1 :     writeMemory( opnArray, nWriteSize, sizeof( Type ) );
      89           1 : }
      90             : 
      91             : typedef ::boost::shared_ptr< BinaryOutputStream > BinaryOutputStreamRef;
      92             : 
      93             : // ----------------------------------------------------------------------------
      94             : 
      95             : template< typename Type >
      96          32 : void BinaryOutputStream::writeValue( Type nValue )
      97             : {
      98          32 :     ByteOrderConverter::convertLittleEndian( nValue );
      99          32 :     writeMemory( &nValue, static_cast< sal_Int32 >( sizeof( Type ) ), sizeof( Type ) );
     100          32 : }
     101             : 
     102             : // ============================================================================
     103             : 
     104             : /** Wraps a UNO output stream and provides convenient access functions.
     105             : 
     106             :     The binary data in the stream is written in little-endian format.
     107             :  */
     108             : class BinaryXOutputStream : public BinaryXSeekableStream, public BinaryOutputStream
     109             : {
     110             : public:
     111             :     /** Constructs the wrapper object for the passed output stream.
     112             : 
     113             :         @param rxOutStream
     114             :             The com.sun.star.io.XOutputStream interface of the output stream to
     115             :             be wrapped.
     116             : 
     117             :         @param bAutoClose
     118             :             True = automatically close the wrapped output stream on destruction
     119             :             of this wrapper or when close() is called.
     120             :      */
     121             :     explicit            BinaryXOutputStream(
     122             :                             const ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream >& rxOutStrm,
     123             :                             bool bAutoClose );
     124             : 
     125             :     virtual             ~BinaryXOutputStream();
     126             : 
     127             :     /** Flushes and closes the output stream. Does also close the wrapped UNO
     128             :         output stream if bAutoClose has been set to true in the constructor. */
     129             :     void                close();
     130             : 
     131             :     /** Writes the passed data sequence. */
     132             :     virtual void        writeData( const StreamDataSequence& rData, size_t nAtomSize = 1 );
     133             : 
     134             :     /** Write nBytes bytes from the (preallocated!) buffer pMem. */
     135             :     virtual void        writeMemory( const void* pMem, sal_Int32 nBytes, size_t nAtomSize = 1 );
     136             : 
     137             :     /** Stream operator for all data types supported by the writeValue() function. */
     138             :     template< typename Type >
     139           1 :     inline BinaryXOutputStream& operator<<( Type nValue ) { writeValue( nValue ); return *this; }
     140             : 
     141             :     /** Returns the XOutputStream interface of the wrapped output stream. */
     142             :     inline ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream >
     143             :                         getXOutputStream() const { return mxOutStrm; }
     144             : 
     145             : private:
     146             :     StreamDataSequence  maBuffer;       ///< Data buffer used in writeMemory() function.
     147             :     ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream >
     148             :                         mxOutStrm;      ///< Reference to the output stream.
     149             :     bool                mbAutoClose;    ///< True = automatically close stream on destruction.
     150             : };
     151             : 
     152             : // ============================================================================
     153             : 
     154             : /** Wraps a StreamDataSequence and provides convenient access functions.
     155             : 
     156             :     The binary data in the stream is written in little-endian format. After
     157             :     construction, the stream points to the beginning of the passed data
     158             :     sequence. The data sequence is expanded automatically while writing to it.
     159             :  */
     160           0 : class OOX_DLLPUBLIC SequenceOutputStream : public SequenceSeekableStream, public BinaryOutputStream
     161             : {
     162             : public:
     163             :     /** Constructs the wrapper object for the passed data sequence.
     164             : 
     165             :         @attention
     166             :             The passed data sequence MUST live at least as long as this stream
     167             :             wrapper. The data sequence MUST NOT be changed from outside as long
     168             :             as this stream wrapper is used to write to it.
     169             :      */
     170             :     explicit            SequenceOutputStream( StreamDataSequence& rData );
     171             : 
     172             :     /** Writes the passed data sequence. */
     173             :     virtual void        writeData( const StreamDataSequence& rData, size_t nAtomSize = 1 );
     174             : 
     175             :     /** Write nBytes bytes from the (preallocated!) buffer pMem. */
     176             :     virtual void        writeMemory( const void* pMem, sal_Int32 nBytes, size_t nAtomSize = 1 );
     177             : 
     178             :     /** Stream operator for all data types supported by the writeValue() function. */
     179             :     template< typename Type >
     180             :     inline SequenceOutputStream& operator<<( Type nValue ) { writeValue( nValue ); return *this; }
     181             : };
     182             : 
     183             : // ============================================================================
     184             : 
     185             : } // namespace oox
     186             : 
     187             : #endif
     188             : 
     189             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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