svl/source/items/cntwall.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
  21 #include <tools/debug.hxx>
  22 #include <tools/stream.hxx>
  23 #include <tools/vcompat.hxx>
  24
  25 #include <svl/cntwall.hxx>
  26
  27 #define CNTWALLPAPERITEM_STREAM_MAGIC   ( (sal_uInt32)0xfefefefe )
  28 #define CNTWALLPAPERITEM_STREAM_SEEKREL (-( (long)( sizeof( sal_uInt32 ) ) ) )
  29
  30 TYPEINIT1( CntWallpaperItem, SfxPoolItem );
  31
  32 // -----------------------------------------------------------------------
  33 CntWallpaperItem::CntWallpaperItem( sal_uInt16 which )
  34     : SfxPoolItem( which ), _nColor( COL_TRANSPARENT ), _nStyle( 0 )
  35 {
  36 }
  37
  38 // -----------------------------------------------------------------------
  39 CntWallpaperItem::CntWallpaperItem( sal_uInt16 which, SvStream& rStream, sal_uInt16 nVersion )
  40     : SfxPoolItem( which ), _nColor( COL_TRANSPARENT ), _nStyle( 0 )
  41 {
  42     sal_uInt32 nMagic = 0;
  43     rStream >> nMagic;
  44     if ( nMagic == CNTWALLPAPERITEM_STREAM_MAGIC )
  45     {
  46         // Okay, data were stored by CntWallpaperItem.
  47
  48         _aURL = readUnicodeString(rStream, nVersion >= 1);
  49         // !!! Color stream operators do not work - they discard any
  50         // transparency info !!!
  51         _nColor.Read( rStream, sal_True );
  52         rStream >> _nStyle;
  53     }
  54     else
  55     {
  56         rStream.SeekRel( CNTWALLPAPERITEM_STREAM_SEEKREL );
  57
  58         // Data were stored by SfxWallpaperItem ( SO < 6.0 ). The only
  59         // thing we can do here is to get the URL and to position the stream.
  60
  61         {
  62             // "Read" Wallpaper member - The version compat object positions
  63             // the stream after the wallpaper data in its dtor. We must use
  64             // this trick here as no VCL must be used here ( No Wallpaper
  65             // object allowed ).
  66             VersionCompat aCompat( rStream, STREAM_READ );
  67         }
  68
  69         // Read SfxWallpaperItem's string member _aURL.
  70         _aURL = readUnicodeString(rStream, false);
  71
  72         // "Read" SfxWallpaperItem's string member _aFilter.
  73         read_lenPrefixed_uInt8s_ToOString<sal_uInt16>(rStream);
  74     }
  75 }
  76
  77 // -----------------------------------------------------------------------
  78 CntWallpaperItem::CntWallpaperItem( const CntWallpaperItem& rItem ) :
  79     SfxPoolItem( rItem ),
  80     _aURL( rItem._aURL ),
  81     _nColor( rItem._nColor ),
  82     _nStyle( rItem._nStyle )
  83 {
  84 }
  85
  86 // -----------------------------------------------------------------------
  87 CntWallpaperItem::~CntWallpaperItem()
  88 {
  89 }
  90
  91 // -----------------------------------------------------------------------
  92 int CntWallpaperItem::operator==( const SfxPoolItem& rItem ) const
  93 {
  94     DBG_ASSERT( SfxPoolItem::operator==( rItem ), "unequal type" );
  95
  96     const CntWallpaperItem& rWallItem = (const CntWallpaperItem&)rItem;
  97
  98     if( ( rWallItem._nStyle == _nStyle ) &&
  99         ( rWallItem._nColor == _nColor ) &&
 100         ( rWallItem._aURL == _aURL ) )
 101         return sal_True;
 102     else
 103         return sal_False;
 104 }
 105
 106 //============================================================================
 107 // virtual
 108 sal_uInt16 CntWallpaperItem::GetVersion(sal_uInt16) const
 109 {
 110     return 1; // because it uses SfxPoolItem::read/writeUnicodeString()
 111 }
 112
 113 // -----------------------------------------------------------------------
 114 SfxPoolItem* CntWallpaperItem::Create( SvStream& rStream, sal_uInt16 nVersion) const
 115 {
 116     return new CntWallpaperItem( Which(), rStream, nVersion );
 117 }
 118
 119 // -----------------------------------------------------------------------
 120 SvStream& CntWallpaperItem::Store( SvStream& rStream, sal_uInt16 ) const
 121 {
 122     rStream << CNTWALLPAPERITEM_STREAM_MAGIC;
 123     writeUnicodeString(rStream, _aURL);
 124     // !!! Color stream operators do not work - they discard any
 125     // transparency info !!!
 126     // ??? Why the hell Color::Write(...) isn't const ???
 127     (const_cast< CntWallpaperItem* >(this))->_nColor.Write( rStream, sal_True );
 128     rStream << _nStyle;
 129
 130     return rStream;
 131 }
 132
 133 // -----------------------------------------------------------------------
 134 SfxPoolItem* CntWallpaperItem::Clone( SfxItemPool* ) const
 135 {
 136     return new CntWallpaperItem( *this );
 137 }
 138
 139 //----------------------------------------------------------------------------
 140 // virtual
 141 bool CntWallpaperItem::QueryValue( com::sun::star::uno::Any&, sal_uInt8) const
 142 {
 143     OSL_FAIL("Not implemented!");
 144     return false;
 145 }
 146
 147 //----------------------------------------------------------------------------
 148 // virtual
 149 bool CntWallpaperItem::PutValue( const com::sun::star::uno::Any&, sal_uInt8)
 150 {
 151     OSL_FAIL("Not implemented!");
 152     return false;
 153 }
 154
 155
 156 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */