xmloff/source/style/XMLBackgroundImageExport.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 <com/sun/star/style/GraphicLocation.hpp>
  22 #include <com/sun/star/graphic/XGraphic.hpp>
  23
  24 #include <sax/tools/converter.hxx>
  25
  26 #include <xmloff/xmlnamespace.hxx>
  27 #include <xmloff/xmltoken.hxx>
  28 #include <rtl/ustrbuf.hxx>
  29 #include <xmloff/xmlexp.hxx>
  30 #include <XMLBackgroundImageExport.hxx>
  31
  32
  33 using namespace ::com::sun::star;
  34 using namespace ::com::sun::star::uno;
  35 using namespace ::com::sun::star::style;
  36 using namespace ::xmloff::token;
  37
  38 XMLBackgroundImageExport::XMLBackgroundImageExport( SvXMLExport& rExp ) :
  39     rExport( rExp )
  40 {
  41 }
  42
  43 XMLBackgroundImageExport::~XMLBackgroundImageExport()
  44 {
  45 }
  46
  47 void XMLBackgroundImageExport::exportXML( const Any& rGraphicAny,
  48             const Any *pPos,
  49             const Any *pFilter,
  50             const Any *pTransparency,
  51             sal_uInt16 nPrefix,
  52             const OUString& rLocalName )
  53 {
  54     GraphicLocation ePos;
  55     if( !(pPos && ((*pPos) >>= ePos)) )
  56         ePos = GraphicLocation_AREA;
  57
  58     uno::Reference<graphic::XGraphic> xGraphic;
  59     if (rGraphicAny.has<uno::Reference<graphic::XGraphic>>())
  60         xGraphic = rGraphicAny.get<uno::Reference<graphic::XGraphic>>();
  61
  62     if (xGraphic.is() && GraphicLocation_NONE != ePos)
  63     {
  64         OUString sUsedMimeType;
  65         OUString sInternalURL(GetExport().AddEmbeddedXGraphic(xGraphic, sUsedMimeType));
  66
  67         if (!sInternalURL.isEmpty())
  68         {
  69             GetExport().AddAttribute(XML_NAMESPACE_XLINK, XML_HREF, sInternalURL);
  70             GetExport().AddAttribute(XML_NAMESPACE_XLINK, XML_TYPE, XML_SIMPLE );
  71             GetExport().AddAttribute(XML_NAMESPACE_XLINK, XML_ACTUATE, XML_ONLOAD);
  72         }
  73
  74         OUStringBuffer aOut;
  75         switch( ePos )
  76         {
  77         case GraphicLocation_LEFT_TOP:
  78         case GraphicLocation_MIDDLE_TOP:
  79         case GraphicLocation_RIGHT_TOP:
  80             aOut.append( GetXMLToken(XML_TOP) );
  81             break;
  82         case GraphicLocation_LEFT_MIDDLE:
  83         case GraphicLocation_MIDDLE_MIDDLE:
  84         case GraphicLocation_RIGHT_MIDDLE:
  85             aOut.append( GetXMLToken(XML_CENTER) );
  86             break;
  87         case GraphicLocation_LEFT_BOTTOM:
  88         case GraphicLocation_MIDDLE_BOTTOM:
  89         case GraphicLocation_RIGHT_BOTTOM:
  90             aOut.append( GetXMLToken(XML_BOTTOM) );
  91             break;
  92         default:
  93             break;
  94         }
  95
  96         if( !aOut.isEmpty() )
  97         {
  98             aOut.append( ' ' );
  99
 100             switch( ePos )
 101             {
 102             case GraphicLocation_LEFT_TOP:
 103             case GraphicLocation_LEFT_BOTTOM:
 104             case GraphicLocation_LEFT_MIDDLE:
 105                 aOut.append( GetXMLToken(XML_LEFT) );
 106                 break;
 107             case GraphicLocation_MIDDLE_TOP:
 108             case GraphicLocation_MIDDLE_MIDDLE:
 109             case GraphicLocation_MIDDLE_BOTTOM:
 110                 aOut.append( GetXMLToken(XML_CENTER) );
 111                 break;
 112             case GraphicLocation_RIGHT_MIDDLE:
 113             case GraphicLocation_RIGHT_TOP:
 114             case GraphicLocation_RIGHT_BOTTOM:
 115                 aOut.append( GetXMLToken(XML_RIGHT) );
 116                 break;
 117             default:
 118                 break;
 119             }
 120         }
 121         if( !aOut.isEmpty() )
 122             GetExport().AddAttribute( XML_NAMESPACE_STYLE,
 123                                   XML_POSITION, aOut.makeStringAndClear() );
 124
 125         if( GraphicLocation_AREA == ePos )
 126         {
 127             aOut.append( GetXMLToken(XML_STRETCH) );
 128         }
 129         else if( GraphicLocation_NONE != ePos && GraphicLocation_TILED != ePos  )
 130         {
 131             aOut.append( GetXMLToken(XML_BACKGROUND_NO_REPEAT) );
 132         }
 133         if( !aOut.isEmpty() )
 134             GetExport().AddAttribute( XML_NAMESPACE_STYLE, XML_REPEAT,
 135                           aOut.makeStringAndClear() );
 136
 137         if( pFilter )
 138         {
 139             OUString sFilter;
 140             (*pFilter) >>= sFilter;
 141             if( !sFilter.isEmpty() )
 142                 GetExport().AddAttribute( XML_NAMESPACE_STYLE, XML_FILTER_NAME,
 143                                           sFilter );
 144         }
 145
 146         if( pTransparency )
 147         {
 148             sal_Int8 nTransparency = sal_Int8();
 149             if( (*pTransparency) >>= nTransparency )
 150             {
 151                 OUStringBuffer aTransOut;
 152                 ::sax::Converter::convertPercent(aTransOut, 100-nTransparency);
 153                 GetExport().AddAttribute( XML_NAMESPACE_DRAW, XML_OPACITY,
 154                                           aTransOut.makeStringAndClear() );
 155             }
 156         }
 157     }
 158
 159     {
 160         SvXMLElementExport aElem(GetExport(), nPrefix, rLocalName, true, true);
 161         if (xGraphic.is() && GraphicLocation_NONE != ePos)
 162         {
 163             // optional office:binary-data
 164             GetExport().AddEmbeddedXGraphicAsBase64(xGraphic);
 165         }
 166     }
 167 }
 168
 169 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */