1 files changed, 118 insertions, 0 deletions
diff --git a/reportdesign/source/core/misc/conditionupdater.cxx b/reportdesign/source/core/misc/conditionupdater.cxx
new file mode 100644
index 000000000..428c3b3e7
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+++ b/reportdesign/source/core/misc/conditionupdater.cxx
@@ -0,0 +1,118 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#include <conditionupdater.hxx>
+#include <reportformula.hxx>
+
+#include <com/sun/star/report/XFormatCondition.hpp>
+
+#include <tools/diagnose_ex.h>
+
+
+namespace rptui
+{
+
+
+    using ::com::sun::star::beans::PropertyChangeEvent;
+    using ::com::sun::star::uno::Reference;
+    using ::com::sun::star::report::XReportControlModel;
+    using ::com::sun::star::uno::UNO_QUERY;
+    using ::com::sun::star::report::XFormatCondition;
+    using ::com::sun::star::uno::UNO_QUERY_THROW;
+    using ::com::sun::star::uno::Exception;
+
+
+    //= ConditionUpdater
+
+
+    ConditionUpdater::ConditionUpdater()
+    {
+    }
+
+
+    ConditionUpdater::~ConditionUpdater()
+    {
+    }
+
+
+    void ConditionUpdater::notifyPropertyChange( const PropertyChangeEvent& _rEvent )
+    {
+        impl_lateInit_nothrow();
+
+        Reference< XReportControlModel > xRptControlModel( _rEvent.Source, UNO_QUERY );
+        if ( xRptControlModel.is() && _rEvent.PropertyName == "DataField" )
+        {
+            OUString sOldDataSource, sNewDataSource;
+            OSL_VERIFY( _rEvent.OldValue >>= sOldDataSource );
+            OSL_VERIFY( _rEvent.NewValue >>= sNewDataSource );
+            impl_adjustFormatConditions_nothrow( xRptControlModel, sOldDataSource, sNewDataSource );
+        }
+    }
+
+
+    void ConditionUpdater::impl_lateInit_nothrow()
+    {
+        if ( !m_aConditionalExpressions.empty() )
+            return;
+
+        ConditionalExpressionFactory::getKnownConditionalExpressions( m_aConditionalExpressions );
+    }
+
+
+    void ConditionUpdater::impl_adjustFormatConditions_nothrow( const Reference< XReportControlModel >& _rxRptControlModel,
+        const OUString& _rOldDataSource, const OUString& _rNewDataSource )
+    {
+        try
+        {
+            ReportFormula aOldContentFormula( _rOldDataSource );
+            OUString sOldUnprefixed( aOldContentFormula.getBracketedFieldOrExpression() );
+            ReportFormula aNewContentFormula( _rNewDataSource );
+            OUString sNewUnprefixed( aNewContentFormula.getBracketedFieldOrExpression() );
+
+            sal_Int32 nCount( _rxRptControlModel->getCount() );
+            Reference< XFormatCondition > xFormatCondition;
+            OUString sFormulaExpression, sLHS, sRHS;
+            for ( sal_Int32 i=0; i<nCount; ++i )
+            {
+                xFormatCondition.set( _rxRptControlModel->getByIndex( i ), UNO_QUERY_THROW );
+                sFormulaExpression = ReportFormula(xFormatCondition->getFormula()).getExpression();
+
+                for (const auto& rEntry : m_aConditionalExpressions)
+                {
+                    if ( !rEntry.second->matchExpression( sFormulaExpression, sOldUnprefixed, sLHS, sRHS ) )
+                        continue;
+
+                    // the expression matches -> translate it to the new data source of the report control model
+                    sFormulaExpression = rEntry.second->assembleExpression( sNewUnprefixed, sLHS, sRHS );
+                    ReportFormula aFormula(ReportFormula(ReportFormula::Expression, sFormulaExpression));
+                    xFormatCondition->setFormula(aFormula.getCompleteFormula());
+                    break;
+                }
+            }
+        }
+        catch( const Exception& )
+        {
+            DBG_UNHANDLED_EXCEPTION("reportdesign");
+        }
+    }
+
+
+} // namespace rptui
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */