svl/source/items/lckbitem.cxx

   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 #include <svl/lckbitem.hxx>
  21 #include <svl/poolitem.hxx>
  22 #include <osl/diagnose.h>
  23 #include <com/sun/star/uno/Any.hxx>
  24 #include <com/sun/star/uno/Sequence.hxx>
  25
  26
  27
  28 TYPEINIT1_AUTOFACTORY(SfxLockBytesItem, SfxPoolItem);
  29
  30
  31
  32 SfxLockBytesItem::SfxLockBytesItem()
  33 {
  34 }
  35
  36
  37
  38 SfxLockBytesItem::SfxLockBytesItem( sal_uInt16 nW, SvStream &rStream )
  39 :   SfxPoolItem( nW )
  40 {
  41     rStream.Seek( 0L );
  42     _xVal = new SvLockBytes( new SvMemoryStream(), true );
  43
  44     SvStream aLockBytesStream( _xVal );
  45     rStream.ReadStream( aLockBytesStream );
  46 }
  47
  48
  49
  50 SfxLockBytesItem::SfxLockBytesItem( const SfxLockBytesItem& rItem )
  51 :   SfxPoolItem( rItem ),
  52     _xVal( rItem._xVal )
  53 {
  54 }
  55
  56
  57
  58 SfxLockBytesItem::~SfxLockBytesItem()
  59 {
  60 }
  61
  62
  63
  64 bool SfxLockBytesItem::operator==( const SfxPoolItem& rItem ) const
  65 {
  66     return static_cast<const SfxLockBytesItem&>(rItem)._xVal == _xVal;
  67 }
  68
  69
  70
  71 SfxPoolItem* SfxLockBytesItem::Clone(SfxItemPool *) const
  72 {
  73     return new SfxLockBytesItem( *this );
  74 }
  75
  76
  77
  78 #define MAX_BUF 32000
  79
  80 SfxPoolItem* SfxLockBytesItem::Create( SvStream &rStream, sal_uInt16 ) const
  81 {
  82     sal_uInt32 nSize = 0;
  83     sal_uLong nActRead = 0;
  84     sal_Char cTmpBuf[MAX_BUF];
  85     SvMemoryStream aNewStream;
  86     rStream.ReadUInt32( nSize );
  87
  88     do {
  89         sal_uLong nToRead;
  90         if( (nSize - nActRead) > MAX_BUF )
  91             nToRead = MAX_BUF;
  92         else
  93             nToRead = nSize - nActRead;
  94         nActRead += rStream.Read( cTmpBuf, nToRead );
  95         aNewStream.Write( cTmpBuf, nToRead );
  96     } while( nSize > nActRead );
  97
  98     return new SfxLockBytesItem( Which(), aNewStream );
  99 }
 100
 101
 102
 103 SvStream& SfxLockBytesItem::Store(SvStream &rStream, sal_uInt16 ) const
 104 {
 105     SvStream aLockBytesStream( _xVal );
 106     sal_uInt32 nSize = aLockBytesStream.Seek( STREAM_SEEK_TO_END );
 107     aLockBytesStream.Seek( 0L );
 108
 109     rStream.WriteUInt32( nSize );
 110     rStream.WriteStream( aLockBytesStream );
 111
 112     return rStream;
 113 }
 114
 115 // virtual
 116 bool SfxLockBytesItem::PutValue( const com::sun::star::uno::Any& rVal, sal_uInt8 )
 117 {
 118     com::sun::star::uno::Sequence< sal_Int8 > aSeq;
 119     if ( rVal >>= aSeq )
 120     {
 121         if ( aSeq.getLength() )
 122         {
 123             SvMemoryStream* pStream = new SvMemoryStream();
 124             pStream->Write( (void*)aSeq.getConstArray(), aSeq.getLength() );
 125             pStream->Seek(0);
 126
 127             _xVal = new SvLockBytes( pStream, true );
 128         }
 129         else
 130             _xVal = NULL;
 131
 132         return true;
 133     }
 134
 135     OSL_FAIL( "SfxLockBytesItem::PutValue - Wrong type!" );
 136     return true;
 137 }
 138
 139 // virtual
 140 bool SfxLockBytesItem::QueryValue( com::sun::star::uno::Any& rVal, sal_uInt8 ) const
 141 {
 142     if ( _xVal.Is() )
 143     {
 144         sal_uInt32 nLen;
 145         SvLockBytesStat aStat;
 146
 147         if ( _xVal->Stat( &aStat, SVSTATFLAG_DEFAULT ) == ERRCODE_NONE )
 148             nLen = aStat.nSize;
 149         else
 150             return false;
 151
 152         sal_uLong nRead = 0;
 153         com::sun::star::uno::Sequence< sal_Int8 > aSeq( nLen );
 154
 155         _xVal->ReadAt( 0, aSeq.getArray(), nLen, &nRead );
 156         rVal <<= aSeq;
 157     }
 158     else
 159     {
 160         com::sun::star::uno::Sequence< sal_Int8 > aSeq( 0 );
 161         rVal <<= aSeq;
 162     }
 163
 164     return true;
 165 }
 166
 167 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */