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.
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   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         if ( !impl_lateInit_nothrow() )
  56             return;
  57
  58         Reference< XReportControlModel > xRptControlModel( _rEvent.Source, UNO_QUERY );
  59         if ( xRptControlModel.is() && _rEvent.PropertyName == "DataField" )
  60         {
  61             OUString sOldDataSource, sNewDataSource;
  62             OSL_VERIFY( _rEvent.OldValue >>= sOldDataSource );
  63             OSL_VERIFY( _rEvent.NewValue >>= sNewDataSource );
  64             impl_adjustFormatConditions_nothrow( xRptControlModel, sOldDataSource, sNewDataSource );
  65         }
  66     }
  67
  68
  69     bool ConditionUpdater::impl_lateInit_nothrow()
  70     {
  71         if ( !m_aConditionalExpressions.empty() )
  72             return true;
  73
  74         ConditionalExpressionFactory::getKnownConditionalExpressions( m_aConditionalExpressions );
  75         return true;
  76     }
  77
  78
  79     void ConditionUpdater::impl_adjustFormatConditions_nothrow( const Reference< XReportControlModel >& _rxRptControlModel,
  80         const OUString& _rOldDataSource, const OUString& _rNewDataSource )
  81     {
  82         try
  83         {
  84             ReportFormula aOldContentFormula( _rOldDataSource );
  85             OUString sOldUnprefixed( aOldContentFormula.getBracketedFieldOrExpression() );
  86             ReportFormula aNewContentFormula( _rNewDataSource );
  87             OUString sNewUnprefixed( aNewContentFormula.getBracketedFieldOrExpression() );
  88
  89             sal_Int32 nCount( _rxRptControlModel->getCount() );
  90             Reference< XFormatCondition > xFormatCondition;
  91             OUString sFormulaExpression, sLHS, sRHS;
  92             for ( sal_Int32 i=0; i<nCount; ++i )
  93             {
  94                 xFormatCondition.set( _rxRptControlModel->getByIndex( i ), UNO_QUERY_THROW );
  95                 ReportFormula aFormula( xFormatCondition->getFormula() );
  96                 sFormulaExpression = aFormula.getExpression();
  97
  98                 for (   ConditionalExpressions::const_iterator loop = m_aConditionalExpressions.begin();
  99                         loop != m_aConditionalExpressions.end();
 100                         ++loop
 101                     )
 102                 {
 103                     if ( !loop->second->matchExpression( sFormulaExpression, sOldUnprefixed, sLHS, sRHS ) )
 104                         continue;
 105
 106                     // the expression matches -> translate it to the new data source of the report control model
 107                     sFormulaExpression = loop->second->assembleExpression( sNewUnprefixed, sLHS, sRHS );
 108                     aFormula = ReportFormula( ReportFormula::Expression, sFormulaExpression );
 109                     xFormatCondition->setFormula( aFormula.getCompleteFormula() );
 110                     break;
 111                 }
 112             }
 113         }
 114         catch( const Exception& )
 115         {
 116             DBG_UNHANDLED_EXCEPTION();
 117         }
 118     }
 119
 120
 121 } // namespace rptui
 122
 123
 124 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */