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Diffstat (limited to 'comphelper/source/property/property.cxx')
| -rw-r--r-- | comphelper/source/property/property.cxx | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/comphelper/source/property/property.cxx b/comphelper/source/property/property.cxx new file mode 100644 index 0000000000..7d57baeb39 --- /dev/null +++ b/comphelper/source/property/property.cxx @@ -0,0 +1,206 @@ +/* -*- 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 <comphelper/property.hxx> +#include <comphelper/sequence.hxx> +#include <osl/diagnose.h> +#include <sal/log.hxx> +#include <comphelper/diagnose_ex.hxx> + +#if OSL_DEBUG_LEVEL > 0 + #include <cppuhelper/exc_hlp.hxx> + #include <com/sun/star/lang/XServiceInfo.hpp> + #include <typeinfo> +#endif +#include <com/sun/star/beans/PropertyAttribute.hpp> +#include <com/sun/star/beans/XPropertySet.hpp> +#include <com/sun/star/lang/IllegalArgumentException.hpp> +#include <rtl/ustrbuf.hxx> +#include <algorithm> + + +namespace comphelper +{ + + using ::com::sun::star::uno::Reference; + using ::com::sun::star::beans::XPropertySet; + using ::com::sun::star::beans::XPropertySetInfo; + using ::com::sun::star::beans::Property; + using ::com::sun::star::uno::Sequence; + using ::com::sun::star::uno::Exception; + using ::com::sun::star::uno::Any; + using ::com::sun::star::uno::Type; + using ::com::sun::star::uno::cpp_queryInterface; + using ::com::sun::star::uno::cpp_acquire; + using ::com::sun::star::uno::cpp_release; +#if OSL_DEBUG_LEVEL > 0 + using ::com::sun::star::lang::XServiceInfo; +#endif + using ::com::sun::star::uno::UNO_QUERY; + + namespace PropertyAttribute = ::com::sun::star::beans::PropertyAttribute; + + +void copyProperties(const Reference<XPropertySet>& _rxSource, + const Reference<XPropertySet>& _rxDest) +{ + if (!_rxSource.is() || !_rxDest.is()) + { + OSL_FAIL("copyProperties: invalid arguments !"); + return; + } + + Reference< XPropertySetInfo > xSourceProps = _rxSource->getPropertySetInfo(); + Reference< XPropertySetInfo > xDestProps = _rxDest->getPropertySetInfo(); + + const Sequence< Property > aSourceProps = xSourceProps->getProperties(); + Property aDestProp; + for (const Property& rSourceProp : aSourceProps) + { + if ( xDestProps->hasPropertyByName(rSourceProp.Name) ) + { + try + { + aDestProp = xDestProps->getPropertyByName(rSourceProp.Name); + if (0 == (aDestProp.Attributes & PropertyAttribute::READONLY) ) + { + const Any aSourceValue = _rxSource->getPropertyValue(rSourceProp.Name); + if ( 0 != (aDestProp.Attributes & PropertyAttribute::MAYBEVOID) || aSourceValue.hasValue() ) + _rxDest->setPropertyValue(rSourceProp.Name, aSourceValue); + } + } + catch (Exception&) + { +#if OSL_DEBUG_LEVEL > 0 + TOOLS_WARN_EXCEPTION("comphelper", "Caught exception copying properties"); + + OUStringBuffer aBuffer( + "::comphelper::copyProperties: could not copy property '" + + rSourceProp.Name + + "' to the destination set (a '" ); + + Reference< XServiceInfo > xSI( _rxDest, UNO_QUERY ); + if ( xSI.is() ) + { + aBuffer.append( xSI->getImplementationName() ); + } + else + { + aBuffer.appendAscii( typeid( *_rxDest ).name() ); + } + aBuffer.append( "' implementation).\n" ); + + Any aException( ::cppu::getCaughtException() ); + aBuffer.append( "Caught an exception of type '" + + aException.getValueTypeName() + + "'" ); + + Exception aBaseException; + if ( ( aException >>= aBaseException ) && !aBaseException.Message.isEmpty() ) + { + aBuffer.append( ", saying '" + + aBaseException.Message + + "'" ); + } + aBuffer.append( "." ); + + SAL_WARN( "comphelper", aBuffer.makeStringAndClear() ); +#endif + } + } + } +} + + +bool hasProperty(const OUString& _rName, const Reference<XPropertySet>& _rxSet) +{ + if (_rxSet.is()) + { + // XPropertySetInfoRef xInfo(rxSet->getPropertySetInfo()); + return _rxSet->getPropertySetInfo()->hasPropertyByName(_rName); + } + return false; +} + + +void RemoveProperty(Sequence<Property>& _rProps, const OUString& _rPropName) +{ + // binary search + Property aNameProp(_rPropName, 0, Type(), 0); + const Property* pResult = std::lower_bound(std::cbegin(_rProps), std::cend(_rProps), aNameProp, PropertyCompareByName()); + + if ( pResult != std::cend(_rProps) && pResult->Name == _rPropName) + { + removeElementAt(_rProps, pResult - std::cbegin(_rProps)); + } +} + + +void ModifyPropertyAttributes(Sequence<Property>& seqProps, const OUString& sPropName, sal_Int16 nAddAttrib, sal_Int16 nRemoveAttrib) +{ + // binary search + auto [begin, end] = asNonConstRange(seqProps); + Property aNameProp(sPropName, 0, Type(), 0); + Property* pResult = std::lower_bound(begin, end, aNameProp, PropertyCompareByName()); + + if ( (pResult != end) && (pResult->Name == sPropName) ) + { + pResult->Attributes |= nAddAttrib; + pResult->Attributes &= ~nRemoveAttrib; + } +} + + +bool tryPropertyValue(Any& _rConvertedValue, Any& _rOldValue, const Any& _rValueToSet, const Any& _rCurrentValue, const Type& _rExpectedType) +{ + bool bModified(false); + if (_rCurrentValue.getValue() != _rValueToSet.getValue()) + { + if ( _rValueToSet.hasValue() && ( !_rExpectedType.equals( _rValueToSet.getValueType() ) ) ) + { + _rConvertedValue = Any( nullptr, _rExpectedType.getTypeLibType() ); + + if ( !uno_type_assignData( + const_cast< void* >( _rConvertedValue.getValue() ), _rConvertedValue.getValueType().getTypeLibType(), + const_cast< void* >( _rValueToSet.getValue() ), _rValueToSet.getValueType().getTypeLibType(), + reinterpret_cast< uno_QueryInterfaceFunc >( + cpp_queryInterface), + reinterpret_cast< uno_AcquireFunc >(cpp_acquire), + reinterpret_cast< uno_ReleaseFunc >(cpp_release) + ) + ) + throw css::lang::IllegalArgumentException(); + } + else + _rConvertedValue = _rValueToSet; + + if ( _rCurrentValue != _rConvertedValue ) + { + _rOldValue = _rCurrentValue; + bModified = true; + } + } + return bModified; +} + + +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |