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Diffstat (limited to 'forms/source/xforms/propertysetbase.cxx')
| -rw-r--r-- | forms/source/xforms/propertysetbase.cxx | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/forms/source/xforms/propertysetbase.cxx b/forms/source/xforms/propertysetbase.cxx new file mode 100644 index 000000000..0b0787c49 --- /dev/null +++ b/forms/source/xforms/propertysetbase.cxx @@ -0,0 +1,158 @@ +/* -*- 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: */ |