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