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Diffstat (limited to 'comphelper/source/property/propertystatecontainer.cxx')
| -rw-r--r-- | comphelper/source/property/propertystatecontainer.cxx | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/comphelper/source/property/propertystatecontainer.cxx b/comphelper/source/property/propertystatecontainer.cxx new file mode 100644 index 000000000..e19e78733 --- /dev/null +++ b/comphelper/source/property/propertystatecontainer.cxx @@ -0,0 +1,183 @@ +/* -*- 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 <sal/config.h> + +#include <string_view> + +#include <comphelper/propertystatecontainer.hxx> + + +namespace comphelper +{ + + + using namespace ::com::sun::star::uno; + using namespace ::com::sun::star::beans; + using namespace ::com::sun::star::lang; + + namespace + { + OUString lcl_getUnknownPropertyErrorMessage( std::u16string_view _rPropertyName ) + { + // TODO: perhaps it's time to think about resources in the comphelper module? + // Would be nice to have localized exception strings (a simply resource file containing + // strings only would suffice, and could be realized with a UNO service, so we do not + // need the dependency to the Tools project) + return OUString::Concat("The property \"") + _rPropertyName + "\" is unknown."; + } + } + + OPropertyStateContainer::OPropertyStateContainer( ::cppu::OBroadcastHelper& _rBHelper ) + :OPropertyContainer( _rBHelper ) + { + } + + + Any SAL_CALL OPropertyStateContainer::queryInterface( const Type& _rType ) + { + Any aReturn = OPropertyContainer::queryInterface( _rType ); + if ( !aReturn.hasValue() ) + aReturn = OPropertyStateContainer_TBase::queryInterface( _rType ); + return aReturn; + } + + + IMPLEMENT_FORWARD_XTYPEPROVIDER2( OPropertyStateContainer, OPropertyContainer, OPropertyStateContainer_TBase ) + + + sal_Int32 OPropertyStateContainer::getHandleForName( const OUString& _rPropertyName ) + { + // look up the handle for the name + ::cppu::IPropertyArrayHelper& rPH = getInfoHelper(); + sal_Int32 nHandle = rPH.getHandleByName( _rPropertyName ); + + if ( -1 == nHandle ) + throw UnknownPropertyException( lcl_getUnknownPropertyErrorMessage( _rPropertyName ), static_cast< XPropertyState* >( this ) ); + + return nHandle; + } + + + PropertyState SAL_CALL OPropertyStateContainer::getPropertyState( const OUString& _rPropertyName ) + { + return getPropertyStateByHandle( getHandleForName( _rPropertyName ) ); + } + + + Sequence< PropertyState > SAL_CALL OPropertyStateContainer::getPropertyStates( const Sequence< OUString >& _rPropertyNames ) + { + sal_Int32 nProperties = _rPropertyNames.getLength(); + Sequence< PropertyState> aStates( nProperties ); + if ( !nProperties ) + return aStates; + +#ifdef DBG_UTIL + // precondition: property sequence is sorted (the algorithm below relies on this) + { + const OUString* pNames = _rPropertyNames.getConstArray(); + const OUString* pNamesCompare = pNames + 1; + const OUString* pNamesEnd = _rPropertyNames.getConstArray() + _rPropertyNames.getLength(); + for ( ; pNamesCompare != pNamesEnd; ++pNames, ++pNamesCompare ) + OSL_PRECOND( pNames->compareTo( *pNamesCompare ) < 0, + "OPropertyStateContainer::getPropertyStates: property sequence not sorted!" ); + } +#endif + + const OUString* pLookup = _rPropertyNames.getConstArray(); + const OUString* pLookupEnd = pLookup + nProperties; + PropertyState* pStates = aStates.getArray(); + + cppu::IPropertyArrayHelper& rHelper = getInfoHelper(); + Sequence< Property> aAllProperties = rHelper.getProperties(); + sal_Int32 nAllProperties = aAllProperties.getLength(); + const Property* pAllProperties = aAllProperties.getConstArray(); + const Property* pAllPropertiesEnd = pAllProperties + nAllProperties; + + osl::MutexGuard aGuard( rBHelper.rMutex ); + for ( ; ( pAllProperties != pAllPropertiesEnd ) && ( pLookup != pLookupEnd ); ++pAllProperties ) + { +#ifdef DBG_UTIL + if ( pAllProperties < pAllPropertiesEnd - 1 ) + OSL_ENSURE( pAllProperties->Name.compareTo( (pAllProperties + 1)->Name ) < 0, + "OPropertyStateContainer::getPropertyStates: all-properties not sorted!" ); +#endif + if ( pAllProperties->Name == *pLookup ) + { + *pStates++ = getPropertyState( *pLookup ); + ++pLookup; + } + } + + if ( pLookup != pLookupEnd ) + // we run out of properties from the IPropertyArrayHelper, but still have properties to lookup + // -> we were asked for a nonexistent property + throw UnknownPropertyException( lcl_getUnknownPropertyErrorMessage( *pLookup ), static_cast< XPropertyState* >( this ) ); + + return aStates; + } + + + void SAL_CALL OPropertyStateContainer::setPropertyToDefault( const OUString& _rPropertyName ) + { + setPropertyToDefaultByHandle( getHandleForName( _rPropertyName ) ); + } + + + Any SAL_CALL OPropertyStateContainer::getPropertyDefault( const OUString& _rPropertyName ) + { + Any aDefault; + getPropertyDefaultByHandle( getHandleForName( _rPropertyName ), aDefault ); + return aDefault; + } + + + PropertyState OPropertyStateContainer::getPropertyStateByHandle( sal_Int32 _nHandle ) const + { + // simply compare the current and the default value + Any aCurrentValue; + getFastPropertyValue( aCurrentValue, _nHandle ); + Any aDefaultValue; + getPropertyDefaultByHandle( _nHandle, aDefaultValue ); + + bool bEqual = uno_type_equalData( + const_cast< void* >( aCurrentValue.getValue() ), aCurrentValue.getValueType().getTypeLibType(), + const_cast< void* >( aDefaultValue.getValue() ), aDefaultValue.getValueType().getTypeLibType(), + reinterpret_cast< uno_QueryInterfaceFunc >(cpp_queryInterface), + reinterpret_cast< uno_ReleaseFunc >(cpp_release) + ); + if ( bEqual ) + return PropertyState_DEFAULT_VALUE; + else + return PropertyState_DIRECT_VALUE; + } + + + void OPropertyStateContainer::setPropertyToDefaultByHandle( sal_Int32 _nHandle ) + { + Any aDefault; + getPropertyDefaultByHandle( _nHandle, aDefault ); + setFastPropertyValue( _nHandle, aDefault ); + } + + +} // namespace comphelper + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |