chart2/source/tools/RelativeSizeHelper.cxx

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  28
  29 #include "RelativeSizeHelper.hxx"
  30 #include "macros.hxx"
  31
  32 #include <vector>
  33 #include <algorithm>
  34
  35 using namespace ::com::sun::star::awt;
  36 using namespace ::com::sun::star::beans;
  37 using namespace ::std;
  38
  39 using ::com::sun::star::uno::Reference;
  40 using ::com::sun::star::uno::makeAny;
  41 using ::com::sun::star::uno::Exception;
  42 using ::rtl::OUString;
  43
  44 namespace chart
  45 {
  46
  47 double RelativeSizeHelper::calculate(
  48     double fValue,
  49     const Size & rOldReferenceSize,
  50     const Size & rNewReferenceSize )
  51 {
  52     if( rOldReferenceSize.Width <= 0 ||
  53         rOldReferenceSize.Height <= 0 )
  54         return fValue;
  55
  56     return min(
  57         static_cast< double >( rNewReferenceSize.Width )  / static_cast< double >( rOldReferenceSize.Width ),
  58         static_cast< double >( rNewReferenceSize.Height ) / static_cast< double >( rOldReferenceSize.Height ))
  59         * fValue;
  60 }
  61
  62 void RelativeSizeHelper::adaptFontSizes(
  63     const Reference< XPropertySet > & xTargetProperties,
  64     const Size & rOldReferenceSize,
  65     const Size & rNewReferenceSize )
  66 {
  67     if( ! xTargetProperties.is())
  68         return;
  69
  70     float fFontHeight = 0;
  71
  72     vector< OUString > aProperties;
  73     aProperties.push_back( OUString( RTL_CONSTASCII_USTRINGPARAM( "CharHeight" )));
  74     aProperties.push_back( OUString( RTL_CONSTASCII_USTRINGPARAM( "CharHeightAsian" )));
  75     aProperties.push_back( OUString( RTL_CONSTASCII_USTRINGPARAM( "CharHeightComplex" )));
  76
  77     for( vector< OUString >::const_iterator aIt = aProperties.begin();
  78          aIt != aProperties.end(); ++aIt )
  79     {
  80         try
  81         {
  82             if( xTargetProperties->getPropertyValue( *aIt ) >>= fFontHeight )
  83             {
  84                 xTargetProperties->setPropertyValue(
  85                     *aIt,
  86                     makeAny( static_cast< float >(
  87                                  calculate( fFontHeight, rOldReferenceSize, rNewReferenceSize ))));
  88             }
  89         }
  90         catch( const Exception & ex )
  91         {
  92             ASSERT_EXCEPTION( ex );
  93         }
  94     }
  95 }
  96
  97 } //  namespace chart
  98
  99 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */