LibreOffice Module reportdesign (master)  1
conditionupdater.cxx
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18  */
19 #include <conditionupdater.hxx>
20 #include <reportformula.hxx>
21 
22 #include <com/sun/star/report/XFormatCondition.hpp>
23 
24 #include <tools/diagnose_ex.h>
25 
26 
27 namespace rptui
28 {
29 
30 
31  using ::com::sun::star::beans::PropertyChangeEvent;
32  using ::com::sun::star::uno::Reference;
33  using ::com::sun::star::report::XReportControlModel;
34  using ::com::sun::star::uno::UNO_QUERY;
35  using ::com::sun::star::report::XFormatCondition;
36  using ::com::sun::star::uno::UNO_QUERY_THROW;
37  using ::com::sun::star::uno::Exception;
38 
39 
40  //= ConditionUpdater
41 
42 
44  {
45  }
46 
47 
49  {
50  }
51 
52 
53  void ConditionUpdater::notifyPropertyChange( const PropertyChangeEvent& _rEvent )
54  {
56 
57  Reference< XReportControlModel > xRptControlModel( _rEvent.Source, UNO_QUERY );
58  if ( xRptControlModel.is() && _rEvent.PropertyName == "DataField" )
59  {
60  OUString sOldDataSource, sNewDataSource;
61  OSL_VERIFY( _rEvent.OldValue >>= sOldDataSource );
62  OSL_VERIFY( _rEvent.NewValue >>= sNewDataSource );
63  impl_adjustFormatConditions_nothrow( xRptControlModel, sOldDataSource, sNewDataSource );
64  }
65  }
66 
67 
69  {
70  if ( !m_aConditionalExpressions.empty() )
71  return;
72 
74  }
75 
76 
78  const OUString& _rOldDataSource, const OUString& _rNewDataSource )
79  {
80  try
81  {
82  ReportFormula aOldContentFormula( _rOldDataSource );
83  OUString sOldUnprefixed( aOldContentFormula.getBracketedFieldOrExpression() );
84  ReportFormula aNewContentFormula( _rNewDataSource );
85  OUString sNewUnprefixed( aNewContentFormula.getBracketedFieldOrExpression() );
86 
87  sal_Int32 nCount( _rxRptControlModel->getCount() );
88  Reference< XFormatCondition > xFormatCondition;
89  OUString sFormulaExpression, sLHS, sRHS;
90  for ( sal_Int32 i=0; i<nCount; ++i )
91  {
92  xFormatCondition.set( _rxRptControlModel->getByIndex( i ), UNO_QUERY_THROW );
93  sFormulaExpression = ReportFormula(xFormatCondition->getFormula()).getExpression();
94 
95  for (const auto& rEntry : m_aConditionalExpressions)
96  {
97  if ( !rEntry.second->matchExpression( sFormulaExpression, sOldUnprefixed, sLHS, sRHS ) )
98  continue;
99 
100  // the expression matches -> translate it to the new data source of the report control model
101  sFormulaExpression = rEntry.second->assembleExpression( sNewUnprefixed, sLHS, sRHS );
102  ReportFormula aFormula(ReportFormula(ReportFormula::Expression, sFormulaExpression));
103  xFormatCondition->setFormula(aFormula.getCompleteFormula());
104  break;
105  }
106  }
107  }
108  catch( const Exception& )
109  {
110  DBG_UNHANDLED_EXCEPTION("reportdesign");
111  }
112  }
113 
114 
115 } // namespace rptui
116 
117 
118 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
void impl_lateInit_nothrow()
does late initializations, return whether or not successful
OUString getBracketedFieldOrExpression() const
returns a bracketed field name of the formula denotes a field reference, or the undecorated expressio...
static size_t getKnownConditionalExpressions(ConditionalExpressions &_out_rCondExp)
fills the given map with all ConditionalExpressions which we know
void impl_adjustFormatConditions_nothrow(const css::uno::Reference< css::report::XReportControlModel > &_rxRptControlModel, const OUString &_rOldDataSource, const OUString &_rNewDataSource)
int nCount
ConditionalExpressions m_aConditionalExpressions
#define DBG_UNHANDLED_EXCEPTION(...)
int i
void notifyPropertyChange(const css::beans::PropertyChangeEvent &_rEvent)
notifies the object about the change of a property value, somewhere in the report definition ...
OUString getExpression(const sal_Unicode *&rpcString, const sal_Unicode *pcEnd, sal_Unicode cEndChar)
const OUString & getCompleteFormula() const
returns the complete formula represented by the object