xmloff/source/style/shadwhdl.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 "shadwhdl.hxx"
  21 #include <com/sun/star/uno/Any.hxx>
  22 #include <rtl/ustrbuf.hxx>
  23
  24
  25 #include <com/sun/star/table/ShadowFormat.hpp>
  26 #include <o3tl/safeint.hxx>
  27 #include <tools/color.hxx>
  28 #include <sax/tools/converter.hxx>
  29 #include <xmloff/xmluconv.hxx>
  30 #include <xmloff/xmltoken.hxx>
  31
  32 using namespace ::com::sun::star;
  33 using namespace ::xmloff::token;
  34
  35
  36
  37
  38 XMLShadowPropHdl::~XMLShadowPropHdl()
  39 {
  40     // nothing to do
  41 }
  42
  43 bool XMLShadowPropHdl::importXML( const OUString& rStrImpValue, uno::Any& rValue, const SvXMLUnitConverter& rUnitConverter ) const
  44 {
  45     bool bRet = false;
  46     table::ShadowFormat aShadow;
  47     aShadow.Location = table::ShadowLocation_BOTTOM_RIGHT;
  48
  49     bool bColorFound = false;
  50     bool bOffsetFound = false;
  51     SvXMLTokenEnumerator aTokenEnum( rStrImpValue );
  52     Color aColor( 128,128, 128 );
  53     OUString aToken;
  54
  55     while( aTokenEnum.getNextToken( aToken ) )
  56     {
  57         if( IsXMLToken( aToken, XML_NONE ) )
  58         {
  59             aShadow.Location = table::ShadowLocation_NONE;
  60             bRet = true;
  61             break;
  62         }
  63         else if( !bColorFound && aToken.startsWith("#") )
  64         {
  65             bRet = ::sax::Converter::convertColor( aColor, aToken );
  66             if( !bRet )
  67                 return false;
  68             bColorFound = true;
  69         }
  70         else if( !bOffsetFound )
  71         {
  72             sal_Int32 nX = 0, nY = 0;
  73
  74             bRet = rUnitConverter.convertMeasureToCore( nX, aToken );
  75             if( bRet && aTokenEnum.getNextToken( aToken ) )
  76                 bRet = rUnitConverter.convertMeasureToCore( nY, aToken );
  77
  78             if( bRet )
  79             {
  80                 if( nX < 0 )
  81                 {
  82                     if( nY < 0 )
  83                         aShadow.Location = table::ShadowLocation_TOP_LEFT;
  84                     else
  85                         aShadow.Location = table::ShadowLocation_BOTTOM_LEFT;
  86                 }
  87                 else
  88                 {
  89                     if( nY < 0 )
  90                         aShadow.Location = table::ShadowLocation_TOP_RIGHT;
  91                     else
  92                         aShadow.Location = table::ShadowLocation_BOTTOM_RIGHT;
  93                 }
  94
  95                 if (nX < 0)
  96                     nX = o3tl::saturating_toggle_sign(nX);
  97                 if (nY < 0)
  98                     nY = o3tl::saturating_toggle_sign(nY);
  99
 100                 sal_Int32 nWidth;
 101                 bRet = !o3tl::checked_add(nX, nY, nWidth);
 102                 if (bRet)
 103                     aShadow.ShadowWidth = sal::static_int_cast<sal_Int16>(nWidth >> 1);
 104             }
 105         }
 106     }
 107
 108     if( bRet && ( bColorFound || bOffsetFound ) )
 109     {
 110         aShadow.IsTransparent = aColor.GetTransparency() > 0;
 111         aShadow.Color = sal_Int32(aColor);
 112         bRet = true;
 113     }
 114
 115     rValue <<= aShadow;
 116
 117     return bRet;
 118 }
 119
 120 bool XMLShadowPropHdl::exportXML( OUString& rStrExpValue, const uno::Any& rValue, const SvXMLUnitConverter& rUnitConverter ) const
 121 {
 122     bool bRet = false;
 123     table::ShadowFormat aShadow;
 124
 125     if( rValue >>= aShadow )
 126     {
 127         sal_Int32 nX = 1, nY = 1;
 128
 129         switch( aShadow.Location )
 130         {
 131             case table::ShadowLocation_TOP_LEFT:
 132                 nX = -1;
 133                 nY = -1;
 134                 break;
 135             case table::ShadowLocation_TOP_RIGHT:
 136                 nY = -1;
 137                 break;
 138             case table::ShadowLocation_BOTTOM_LEFT:
 139                 nX = -1;
 140                 break;
 141             case table::ShadowLocation_BOTTOM_RIGHT:
 142                 break;
 143             case table::ShadowLocation_NONE:
 144             default:
 145                 rStrExpValue = GetXMLToken(XML_NONE);
 146                 return true;
 147         }
 148
 149         nX *= aShadow.ShadowWidth;
 150         nY *= aShadow.ShadowWidth;
 151
 152         OUStringBuffer aOut;
 153         ::sax::Converter::convertColor( aOut, aShadow.Color );
 154         aOut.append( ' ' );
 155         rUnitConverter.convertMeasureToXML( aOut, nX );
 156         aOut.append( ' ' );
 157         rUnitConverter.convertMeasureToXML( aOut, nY );
 158
 159         rStrExpValue = aOut.makeStringAndClear();
 160
 161         bRet = true;
 162     }
 163
 164     return bRet;
 165 }
 166
 167 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */