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diff --git a/forms/source/xforms/propertysetbase.cxx b/forms/source/xforms/propertysetbase.cxx
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+/* -*- 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 "propertysetbase.hxx"
+
+#include <com/sun/star/beans/XMultiPropertySet.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+
+using com::sun::star::uno::Any;
+using com::sun::star::uno::Reference;
+using com::sun::star::uno::Exception;
+using com::sun::star::lang::IllegalArgumentException;
+using com::sun::star::beans::Property;
+using com::sun::star::beans::XPropertySetInfo;
+
+PropertyAccessorBase::~PropertyAccessorBase()
+{
+}
+
+PropertySetBase::PropertySetBase( )
+{
+}
+
+PropertySetBase::~PropertySetBase( )
+{
+}
+
+cppu::IPropertyArrayHelper& SAL_CALL PropertySetBase::getInfoHelper()
+{
+ if ( !m_pProperties )
+ {
+ OSL_ENSURE( !m_aProperties.empty(), "PropertySetBase::getInfoHelper: no registered properties!" );
+ m_pProperties.reset(new cppu::OPropertyArrayHelper( m_aProperties.data(), m_aProperties.size(), false ));
+ }
+ return *m_pProperties;
+}
+
+Reference< XPropertySetInfo > SAL_CALL PropertySetBase::getPropertySetInfo( )
+{
+ return cppu::OPropertySetHelper::createPropertySetInfo( getInfoHelper() );
+}
+
+void PropertySetBase::registerProperty( const Property& rProperty,
+ const ::rtl::Reference< PropertyAccessorBase >& rAccessor )
+{
+ OSL_ENSURE(rAccessor,
+ "PropertySetBase::registerProperty: invalid property accessor, this will crash!");
+ m_aAccessors.emplace( rProperty.Handle, rAccessor );
+
+ OSL_ENSURE( rAccessor->isWriteable()
+ == ( ( rProperty.Attributes & css::beans::PropertyAttribute::READONLY ) == 0 ),
+ "PropertySetBase::registerProperty: inconsistence!" );
+
+ m_aProperties.push_back( rProperty );
+}
+
+void PropertySetBase::notifyAndCachePropertyValue( sal_Int32 nHandle )
+{
+ ::osl::ClearableMutexGuard aGuard( GetMutex() );
+
+ PropertyValueCache::iterator aPos = m_aCache.find( nHandle );
+ if ( aPos == m_aCache.end() )
+ { // method has never before been invoked for this property
+ try
+ {
+ // determine the type of this property
+ ::cppu::IPropertyArrayHelper& rPropertyMetaData = getInfoHelper();
+ OUString sPropName;
+ OSL_VERIFY( rPropertyMetaData.fillPropertyMembersByHandle( &sPropName, nullptr, nHandle ) );
+ Property aProperty = rPropertyMetaData.getPropertyByName( sPropName );
+ // default construct a value of this type
+ Any aEmptyValue( nullptr, aProperty.Type );
+ // insert into the cache
+ aPos = m_aCache.emplace( nHandle, aEmptyValue ).first;
+ }
+ catch( const Exception& )
+ {
+ OSL_FAIL( "PropertySetBase::notifyAndCachePropertyValue: this is not expected to fail!" );
+ }
+ }
+ Any aOldValue = aPos->second;
+ // determine the current value
+ Any aNewValue;
+ getFastPropertyValue( aNewValue, nHandle );
+ // remember the old value
+ aPos->second = aNewValue;
+
+ aGuard.clear();
+ if ( aNewValue != aOldValue )
+ firePropertyChange( nHandle, aNewValue, aOldValue );
+}
+
+void PropertySetBase::initializePropertyValueCache( sal_Int32 nHandle )
+{
+ Any aCurrentValue;
+ getFastPropertyValue( aCurrentValue, nHandle );
+
+ ::std::pair< PropertyValueCache::iterator, bool > aInsertResult =
+ m_aCache.emplace( nHandle, aCurrentValue );
+ OSL_ENSURE( aInsertResult.second, "PropertySetBase::initializePropertyValueCache: already cached a value for this property!" );
+}
+
+PropertyAccessorBase& PropertySetBase::locatePropertyHandler( sal_Int32 nHandle ) const
+{
+ PropertyAccessors::const_iterator aPropertyPos = m_aAccessors.find( nHandle );
+ OSL_ENSURE( aPropertyPos != m_aAccessors.end() && aPropertyPos->second,
+ "PropertySetBase::locatePropertyHandler: accessor map is corrupted!" );
+ // neither should this be called for handles where there is no accessor, nor should a
+ // NULL accessor be in the map
+ return *aPropertyPos->second;
+}
+
+sal_Bool SAL_CALL PropertySetBase::convertFastPropertyValue( Any& rConvertedValue, Any& rOldValue, sal_Int32 nHandle,
+ const Any& rValue )
+{
+ PropertyAccessorBase& rAccessor = locatePropertyHandler( nHandle );
+ if ( !rAccessor.approveValue( rValue ) )
+ throw IllegalArgumentException( OUString(), *this, 0 );
+
+ rAccessor.getValue( rOldValue );
+ if ( rOldValue != rValue )
+ {
+ rConvertedValue = rValue; // no conversion at all
+ return true;
+ }
+ return false;
+}
+
+void SAL_CALL PropertySetBase::setFastPropertyValue_NoBroadcast( sal_Int32 nHandle, const Any& rValue )
+{
+ PropertyAccessorBase& rAccessor = locatePropertyHandler( nHandle );
+ rAccessor.setValue( rValue );
+}
+
+void SAL_CALL PropertySetBase::getFastPropertyValue( Any& rValue, sal_Int32 nHandle ) const
+{
+ PropertyAccessorBase& rAccessor = locatePropertyHandler( nHandle );
+ rAccessor.getValue( rValue );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */