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Diffstat (limited to 'chart2/source/inc/ModifyListenerHelper.hxx')
| -rw-r--r-- | chart2/source/inc/ModifyListenerHelper.hxx | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/chart2/source/inc/ModifyListenerHelper.hxx b/chart2/source/inc/ModifyListenerHelper.hxx new file mode 100644 index 000000000000..d46eba5cb44a --- /dev/null +++ b/chart2/source/inc/ModifyListenerHelper.hxx @@ -0,0 +1,310 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ +#ifndef CHART2_MODIFYLISTENERHELPER_HXX +#define CHART2_MODIFYLISTENERHELPER_HXX + +#include <cppuhelper/interfacecontainer.hxx> +#include <com/sun/star/util/XModifyListener.hpp> +#include <com/sun/star/util/XModifyBroadcaster.hpp> +#include <com/sun/star/util/XModifiable.hpp> +#include <com/sun/star/uno/XWeak.hpp> +#include <cppuhelper/implbase1.hxx> +#include <cppuhelper/compbase2.hxx> +#include <cppuhelper/weakref.hxx> + +#include "MutexContainer.hxx" +#include "charttoolsdllapi.hxx" + +#include <list> +#include <algorithm> +#include <functional> +#include <utility> + +namespace com { namespace sun { namespace star { +namespace chart2 +{ + class XChartDocument; +}}}} + +namespace chart +{ +namespace ModifyListenerHelper +{ + +OOO_DLLPUBLIC_CHARTTOOLS ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener > createModifyEventForwarder(); + +// ================================================================================ + +/** This helper class serves as forwarder of modify events. It can be used + whenever an object has to send modify events after it gets a modify event of + one of its children. + + <p>The listeners are held as WeakReferences if they support XWeak. Thus the + life time of the listeners is independent of the broadcaster's lifetime in + this case.</p> + */ +class ModifyEventForwarder : + public MutexContainer, + public ::cppu::WeakComponentImplHelper2< + ::com::sun::star::util::XModifyBroadcaster, + ::com::sun::star::util::XModifyListener > +{ +public: + ModifyEventForwarder(); + + void FireEvent( const ::com::sun::star::lang::EventObject & rEvent ); + + void AddListener( + const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener >& aListener ); + void RemoveListener( + const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener >& aListener ); + +protected: + // ____ XModifyBroadcaster ____ + virtual void SAL_CALL addModifyListener( + const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener >& aListener ) + throw (::com::sun::star::uno::RuntimeException); + virtual void SAL_CALL removeModifyListener( + const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener >& aListener ) + throw (::com::sun::star::uno::RuntimeException); + + // ____ XModifyListener ____ + virtual void SAL_CALL modified( + const ::com::sun::star::lang::EventObject& aEvent ) + throw (::com::sun::star::uno::RuntimeException); + + // ____ XEventListener (base of XModifyListener) ____ + virtual void SAL_CALL disposing( + const ::com::sun::star::lang::EventObject& Source ) + throw (::com::sun::star::uno::RuntimeException); + + // ____ WeakComponentImplHelperBase ____ + virtual void SAL_CALL disposing(); + +private: + /// call disposing() at all listeners and remove all listeners + void DisposeAndClear( const ::com::sun::star::uno::Reference< + ::com::sun::star::uno::XWeak > & xSource ); + +// ::osl::Mutex & m_rMutex; + ::cppu::OBroadcastHelper m_aModifyListeners; + + typedef ::std::list< + ::std::pair< + ::com::sun::star::uno::WeakReference< ::com::sun::star::util::XModifyListener >, + ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener > > > + tListenerMap; + + tListenerMap m_aListenerMap; +}; + +// ================================================================================ + +namespace impl +{ + +template< class InterfaceRef > +struct addListenerFunctor : public ::std::unary_function< InterfaceRef, void > +{ + explicit addListenerFunctor( const ::com::sun::star::uno::Reference< + ::com::sun::star::util::XModifyListener > & xListener ) : + m_xListener( xListener ) + {} + + void operator() ( const InterfaceRef & xObject ) + { + ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster > + xBroadcaster( xObject, ::com::sun::star::uno::UNO_QUERY ); + if( xBroadcaster.is() && m_xListener.is()) + xBroadcaster->addModifyListener( m_xListener ); + } +private: + ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener > m_xListener; +}; + +template< class InterfaceRef > +struct removeListenerFunctor : public ::std::unary_function< InterfaceRef, void > +{ + explicit removeListenerFunctor( const ::com::sun::star::uno::Reference< + ::com::sun::star::util::XModifyListener > & xListener ) : + m_xListener( xListener ) + {} + + void operator() ( const InterfaceRef & xObject ) + { + ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster > + xBroadcaster( xObject, ::com::sun::star::uno::UNO_QUERY ); + if( xBroadcaster.is() && m_xListener.is()) + xBroadcaster->removeModifyListener( m_xListener ); + } +private: + ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener > m_xListener; +}; + +template< class Pair > +struct addListenerToMappedElementFunctor : public ::std::unary_function< Pair, void > +{ + explicit addListenerToMappedElementFunctor( const ::com::sun::star::uno::Reference< + ::com::sun::star::util::XModifyListener > & xListener ) : + m_xListener( xListener ) + {} + + void operator() ( const Pair & aPair ) + { + ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster > + xBroadcaster( aPair.second, ::com::sun::star::uno::UNO_QUERY ); + if( xBroadcaster.is() && m_xListener.is()) + xBroadcaster->addModifyListener( m_xListener ); + } +private: + ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener > m_xListener; +}; + +template< class Pair > +struct removeListenerFromMappedElementFunctor : public ::std::unary_function< Pair, void > +{ + explicit removeListenerFromMappedElementFunctor( const ::com::sun::star::uno::Reference< + ::com::sun::star::util::XModifyListener > & xListener ) : + m_xListener( xListener ) + {} + + void operator() ( const Pair & aPair ) + { + ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster > + xBroadcaster( aPair.second, ::com::sun::star::uno::UNO_QUERY ); + if( xBroadcaster.is() && m_xListener.is()) + xBroadcaster->removeModifyListener( m_xListener ); + } +private: + ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener > m_xListener; +}; + +} // namespace impl + +// -------------------------------------------------------------------------------- + + +template< class InterfaceRef > +void addListener( + const InterfaceRef & xObject, + const ::com::sun::star::uno::Reference< + ::com::sun::star::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + { + impl::addListenerFunctor< InterfaceRef > aFunctor( xListener ); + aFunctor( xObject ); + } +} + +template< class Container > +void addListenerToAllElements( + const Container & rContainer, + const ::com::sun::star::uno::Reference< + ::com::sun::star::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + ::std::for_each( rContainer.begin(), rContainer.end(), + impl::addListenerFunctor< typename Container::value_type >( xListener )); +} + +template< class Container > +void addListenerToAllMapElements( + const Container & rContainer, + const ::com::sun::star::uno::Reference< + ::com::sun::star::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + ::std::for_each( rContainer.begin(), rContainer.end(), + impl::addListenerToMappedElementFunctor< typename Container::value_type >( xListener )); +} + +template< typename T > +void addListenerToAllSequenceElements( + const ::com::sun::star::uno::Sequence< T > & rSequence, + const ::com::sun::star::uno::Reference< + ::com::sun::star::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + ::std::for_each( rSequence.getConstArray(), rSequence.getConstArray() + rSequence.getLength(), + impl::addListenerFunctor< T >( xListener )); +} + +template< class InterfaceRef > +void removeListener( + const InterfaceRef & xObject, + const ::com::sun::star::uno::Reference< + ::com::sun::star::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + { + impl::removeListenerFunctor< InterfaceRef > aFunctor( xListener ); + aFunctor( xObject ); + } +} + +template< class Container > +void removeListenerFromAllElements( + const Container & rContainer, + const ::com::sun::star::uno::Reference< + ::com::sun::star::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + ::std::for_each( rContainer.begin(), rContainer.end(), + impl::removeListenerFunctor< typename Container::value_type >( xListener )); +} + +template< class Container > +void removeListenerFromAllMapElements( + const Container & rContainer, + const ::com::sun::star::uno::Reference< + ::com::sun::star::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + ::std::for_each( rContainer.begin(), rContainer.end(), + impl::removeListenerFromMappedElementFunctor< typename Container::value_type >( xListener )); +} + +template< typename T > +void removeListenerFromAllSequenceElements( + const ::com::sun::star::uno::Sequence< T > & rSequence, + const ::com::sun::star::uno::Reference< + ::com::sun::star::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + ::std::for_each( rSequence.getConstArray(), rSequence.getConstArray() + rSequence.getLength(), + impl::removeListenerFunctor< T >( xListener )); +} + +} // namespace ModifyListenerHelper +} // namespace chart + +// CHART2_MODIFYLISTENERHELPER_HXX +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |