reportdesign/source/core/misc/conditionupdater.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 #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
  43     ConditionUpdater::ConditionUpdater()
  44     {
  45     }
  46
  47
  48     ConditionUpdater::~ConditionUpdater()
  49     {
  50     }
  51
  52
  53     void ConditionUpdater::notifyPropertyChange( const PropertyChangeEvent& _rEvent )
  54     {
  55         impl_lateInit_nothrow();
  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
  68     void ConditionUpdater::impl_lateInit_nothrow()
  69     {
  70         if ( !m_aConditionalExpressions.empty() )
  71             return;
  72
  73         ConditionalExpressionFactory::getKnownConditionalExpressions( m_aConditionalExpressions );
  74     }
  75
  76
  77     void ConditionUpdater::impl_adjustFormatConditions_nothrow( const Reference< XReportControlModel >& _rxRptControlModel,
  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: */