reportdesign/source/core/misc/conditionupdater.cxx

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  30
  31 #include "conditionupdater.hxx"
  32 #include "reportformula.hxx"
  33
  34 /** === begin UNO includes === **/
  35 #include <com/sun/star/report/XFormatCondition.hpp>
  36 /** === end UNO includes === **/
  37
  38 #include <tools/diagnose_ex.h>
  39
  40 //........................................................................
  41 namespace rptui
  42 {
  43 //........................................................................
  44
  45     /** === begin UNO using === **/
  46     using ::com::sun::star::beans::PropertyChangeEvent;
  47     using ::com::sun::star::uno::Reference;
  48     using ::com::sun::star::report::XReportControlModel;
  49     using ::com::sun::star::uno::UNO_QUERY;
  50     using ::com::sun::star::report::XFormatCondition;
  51     using ::com::sun::star::uno::UNO_QUERY_THROW;
  52     using ::com::sun::star::uno::Exception;
  53     /** === end UNO using === **/
  54
  55     //====================================================================
  56     //= ConditionUpdater
  57     //====================================================================
  58     //--------------------------------------------------------------------
  59     ConditionUpdater::ConditionUpdater()
  60     {
  61     }
  62
  63     //--------------------------------------------------------------------
  64     ConditionUpdater::~ConditionUpdater()
  65     {
  66     }
  67
  68     //--------------------------------------------------------------------
  69     void ConditionUpdater::notifyPropertyChange( const PropertyChangeEvent& _rEvent )
  70     {
  71         if ( !impl_lateInit_nothrow() )
  72             return;
  73
  74         Reference< XReportControlModel > xRptControlModel( _rEvent.Source, UNO_QUERY );
  75         if ( xRptControlModel.is() && _rEvent.PropertyName.equalsAscii( "DataField" ) )
  76         {
  77             ::rtl::OUString sOldDataSource, sNewDataSource;
  78             OSL_VERIFY( _rEvent.OldValue >>= sOldDataSource );
  79             OSL_VERIFY( _rEvent.NewValue >>= sNewDataSource );
  80             impl_adjustFormatConditions_nothrow( xRptControlModel, sOldDataSource, sNewDataSource );
  81         }
  82     }
  83
  84     //--------------------------------------------------------------------
  85     bool ConditionUpdater::impl_lateInit_nothrow()
  86     {
  87         if ( !m_aConditionalExpressions.empty() )
  88             return true;
  89
  90         ConditionalExpressionFactory::getKnownConditionalExpressions( m_aConditionalExpressions );
  91         return true;
  92     }
  93
  94     //--------------------------------------------------------------------
  95     void ConditionUpdater::impl_adjustFormatConditions_nothrow( const Reference< XReportControlModel >& _rxRptControlModel,
  96         const ::rtl::OUString& _rOldDataSource, const ::rtl::OUString& _rNewDataSource )
  97     {
  98         try
  99         {
 100             ReportFormula aOldContentFormula( _rOldDataSource );
 101             ::rtl::OUString sOldUnprefixed( aOldContentFormula.getBracketedFieldOrExpression() );
 102             ReportFormula aNewContentFormula( _rNewDataSource );
 103             ::rtl::OUString sNewUnprefixed( aNewContentFormula.getBracketedFieldOrExpression() );
 104
 105             sal_Int32 nCount( _rxRptControlModel->getCount() );
 106             Reference< XFormatCondition > xFormatCondition;
 107             ::rtl::OUString sFormulaExpression, sLHS, sRHS;
 108             for ( sal_Int32 i=0; i<nCount; ++i )
 109             {
 110                 xFormatCondition.set( _rxRptControlModel->getByIndex( i ), UNO_QUERY_THROW );
 111                 ReportFormula aFormula( xFormatCondition->getFormula() );
 112                 sFormulaExpression = aFormula.getExpression();
 113
 114                 for (   ConditionalExpressions::const_iterator loop = m_aConditionalExpressions.begin();
 115                         loop != m_aConditionalExpressions.end();
 116                         ++loop
 117                     )
 118                 {
 119                     if ( !loop->second->matchExpression( sFormulaExpression, sOldUnprefixed, sLHS, sRHS ) )
 120                         continue;
 121
 122                     // the expression matches -> translate it to the new data source of the report control model
 123                     sFormulaExpression = loop->second->assembleExpression( sNewUnprefixed, sLHS, sRHS );
 124                     aFormula = ReportFormula( ReportFormula::Expression, sFormulaExpression );
 125                     xFormatCondition->setFormula( aFormula.getCompleteFormula() );
 126                     break;
 127                 }
 128             }
 129         }
 130         catch( const Exception& )
 131         {
 132             DBG_UNHANDLED_EXCEPTION();
 133         }
 134     }
 135
 136 //........................................................................
 137 } // namespace rptui
 138 //........................................................................