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