chart2/source/tools/RelativeSizeHelper.cxx

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  27
  28 // MARKER(update_precomp.py): autogen include statement, do not remove
  29 #include "precompiled_chart2.hxx"
  30 #include "RelativeSizeHelper.hxx"
  31 #include "macros.hxx"
  32
  33 #include <vector>
  34 #include <algorithm>
  35
  36 using namespace ::com::sun::star::awt;
  37 using namespace ::com::sun::star::beans;
  38 using namespace ::std;
  39
  40 using ::com::sun::star::uno::Reference;
  41 using ::com::sun::star::uno::makeAny;
  42 using ::com::sun::star::uno::Exception;
  43 using ::rtl::OUString;
  44
  45 namespace chart
  46 {
  47
  48 // static
  49 double RelativeSizeHelper::calculate(
  50     double fValue,
  51     const Size & rOldReferenceSize,
  52     const Size & rNewReferenceSize )
  53 {
  54     if( rOldReferenceSize.Width <= 0 ||
  55         rOldReferenceSize.Height <= 0 )
  56         return fValue;
  57
  58     return min(
  59         static_cast< double >( rNewReferenceSize.Width )  / static_cast< double >( rOldReferenceSize.Width ),
  60         static_cast< double >( rNewReferenceSize.Height ) / static_cast< double >( rOldReferenceSize.Height ))
  61         * fValue;
  62 }
  63
  64 // static
  65 void RelativeSizeHelper::adaptFontSizes(
  66     const Reference< XPropertySet > & xTargetProperties,
  67     const Size & rOldReferenceSize,
  68     const Size & rNewReferenceSize )
  69 {
  70     if( ! xTargetProperties.is())
  71         return;
  72
  73     float fFontHeight = 0;
  74
  75     vector< OUString > aProperties;
  76     aProperties.push_back( OUString( RTL_CONSTASCII_USTRINGPARAM( "CharHeight" )));
  77     aProperties.push_back( OUString( RTL_CONSTASCII_USTRINGPARAM( "CharHeightAsian" )));
  78     aProperties.push_back( OUString( RTL_CONSTASCII_USTRINGPARAM( "CharHeightComplex" )));
  79
  80     for( vector< OUString >::const_iterator aIt = aProperties.begin();
  81          aIt != aProperties.end(); ++aIt )
  82     {
  83         try
  84         {
  85             if( xTargetProperties->getPropertyValue( *aIt ) >>= fFontHeight )
  86             {
  87                 xTargetProperties->setPropertyValue(
  88                     *aIt,
  89                     makeAny( static_cast< float >(
  90                                  calculate( fFontHeight, rOldReferenceSize, rNewReferenceSize ))));
  91             }
  92         }
  93         catch( const Exception & ex )
  94         {
  95             ASSERT_EXCEPTION( ex );
  96         }
  97     }
  98 }
  99
 100 } //  namespace chart