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 <osl/diagnose.h>
  22 #include <tools/debug.hxx>
  23 #include <tools/stream.hxx>
  24 #include <tools/vcompat.hxx>
  25
  26 #include <svl/cntwall.hxx>
  27 #include <stringio.hxx>
  28
  29 #define CNTWALLPAPERITEM_STREAM_MAGIC   ( (sal_uInt32)0xfefefefe )
  30 #define CNTWALLPAPERITEM_STREAM_SEEKREL (-( (long)( sizeof( sal_uInt32 ) ) ) )
  31
  32 TYPEINIT1( CntWallpaperItem, SfxPoolItem );
  33
  34
  35 CntWallpaperItem::CntWallpaperItem( sal_uInt16 which )
  36     : SfxPoolItem( which ), _nColor( COL_TRANSPARENT ), _nStyle( 0 )
  37 {
  38 }
  39
  40
  41 CntWallpaperItem::CntWallpaperItem( sal_uInt16 which, SvStream& rStream, sal_uInt16 nVersion )
  42     : SfxPoolItem( which ), _nColor( COL_TRANSPARENT ), _nStyle( 0 )
  43 {
  44     sal_uInt32 nMagic = 0;
  45     rStream.ReadUInt32( nMagic );
  46     if ( nMagic == CNTWALLPAPERITEM_STREAM_MAGIC )
  47     {
  48         // Okay, data were stored by CntWallpaperItem.
  49
  50         _aURL = readUnicodeString(rStream, nVersion >= 1);
  51         // !!! Color stream operators do not work - they discard any
  52         // transparency info !!!
  53         _nColor.Read( rStream, true );
  54         rStream.ReadUInt16( _nStyle );
  55     }
  56     else
  57     {
  58         rStream.SeekRel( CNTWALLPAPERITEM_STREAM_SEEKREL );
  59
  60         // Data were stored by SfxWallpaperItem ( SO < 6.0 ). The only
  61         // thing we can do here is to get the URL and to position the stream.
  62
  63         {
  64             // "Read" Wallpaper member - The version compat object positions
  65             // the stream after the wallpaper data in its dtor. We must use
  66             // this trick here as no VCL must be used here ( No Wallpaper
  67             // object allowed ).
  68             VersionCompat aCompat( rStream, StreamMode::READ );
  69         }
  70
  71         // Read SfxWallpaperItem's string member _aURL.
  72         _aURL = readUnicodeString(rStream, false);
  73
  74         // "Read" SfxWallpaperItem's string member _aFilter.
  75         read_uInt16_lenPrefixed_uInt8s_ToOString(rStream);
  76     }
  77 }
  78
  79
  80 CntWallpaperItem::CntWallpaperItem( const CntWallpaperItem& rItem ) :
  81     SfxPoolItem( rItem ),
  82     _aURL( rItem._aURL ),
  83     _nColor( rItem._nColor ),
  84     _nStyle( rItem._nStyle )
  85 {
  86 }
  87
  88
  89 CntWallpaperItem::~CntWallpaperItem()
  90 {
  91 }
  92
  93
  94 bool CntWallpaperItem::operator==( const SfxPoolItem& rItem ) const
  95 {
  96     DBG_ASSERT( SfxPoolItem::operator==( rItem ), "unequal type" );
  97
  98     const CntWallpaperItem& rWallItem = static_cast<const CntWallpaperItem&>(rItem);
  99
 100     return ( rWallItem._nStyle == _nStyle ) &&
 101         ( rWallItem._nColor == _nColor ) &&
 102         ( rWallItem._aURL == _aURL );
 103 }
 104
 105 // virtual
 106 sal_uInt16 CntWallpaperItem::GetVersion(sal_uInt16) const
 107 {
 108     return 1; // because it uses SfxPoolItem::read/writeUnicodeString()
 109 }
 110
 111
 112 SfxPoolItem* CntWallpaperItem::Create( SvStream& rStream, sal_uInt16 nVersion) const
 113 {
 114     return new CntWallpaperItem( Which(), rStream, nVersion );
 115 }
 116
 117
 118 SvStream& CntWallpaperItem::Store( SvStream& rStream, sal_uInt16 ) const
 119 {
 120     rStream.WriteUInt32( CNTWALLPAPERITEM_STREAM_MAGIC );
 121     writeUnicodeString(rStream, _aURL);
 122     // !!! Color stream operators do not work - they discard any
 123     // transparency info !!!
 124     // ??? Why the hell Color::Write(...) isn't const ???
 125     (const_cast< CntWallpaperItem* >(this))->_nColor.Write( rStream, true );
 126     rStream.WriteUInt16( _nStyle );
 127
 128     return rStream;
 129 }
 130
 131
 132 SfxPoolItem* CntWallpaperItem::Clone( SfxItemPool* ) const
 133 {
 134     return new CntWallpaperItem( *this );
 135 }
 136
 137 // virtual
 138 bool CntWallpaperItem::QueryValue( com::sun::star::uno::Any&, sal_uInt8) const
 139 {
 140     OSL_FAIL("Not implemented!");
 141     return false;
 142 }
 143
 144 // virtual
 145 bool CntWallpaperItem::PutValue( const com::sun::star::uno::Any&, sal_uInt8)
 146 {
 147     OSL_FAIL("Not implemented!");
 148     return false;
 149 }
 150
 151
 152 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */