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Diffstat (limited to 'chart2/source/tools/ModifyListenerCallBack.cxx')
-rw-r--r-- | chart2/source/tools/ModifyListenerCallBack.cxx | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/chart2/source/tools/ModifyListenerCallBack.cxx b/chart2/source/tools/ModifyListenerCallBack.cxx new file mode 100644 index 000000000..037ee7a78 --- /dev/null +++ b/chart2/source/tools/ModifyListenerCallBack.cxx @@ -0,0 +1,111 @@ +/* -*- 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 <ModifyListenerCallBack.hxx> +#include <comphelper/compbase.hxx> + +using namespace ::com::sun::star; +using ::com::sun::star::uno::Reference; + +namespace chart { + +typedef comphelper::WeakComponentImplHelper< css::util::XModifyListener > + ModifyListenerCallBack_Base; + +class ModifyListenerCallBack_impl + : public ModifyListenerCallBack_Base +{ +public: + explicit ModifyListenerCallBack_impl( const Link<void*,void>& rCallBack ); + + void startListening( const Reference< util::XModifyBroadcaster >& xBroadcaster ); + void stopListening(); + + //XModifyListener + virtual void SAL_CALL modified( const lang::EventObject& aEvent ) override; + + //XEventListener + virtual void SAL_CALL disposing( const lang::EventObject& Source ) override; + + using ::comphelper::WeakComponentImplHelperBase::disposing; + +private: + Link<void*,void> m_aLink;//will be called on modify + Reference< util::XModifyBroadcaster > m_xBroadcaster;//broadcaster to listen at +}; + +ModifyListenerCallBack_impl::ModifyListenerCallBack_impl( const Link<void*,void>& rCallBack ) + : m_aLink( rCallBack ) +{ +} + +//XModifyListener +void SAL_CALL ModifyListenerCallBack_impl::modified( const lang::EventObject& /*aEvent*/ ) +{ + m_aLink.Call(nullptr); +} + +//XEventListener +void SAL_CALL ModifyListenerCallBack_impl::disposing( const lang::EventObject& /*Source*/ ) +{ + m_xBroadcaster.clear(); +} + +void ModifyListenerCallBack_impl::startListening( const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >& xBroadcaster ) +{ + if( m_xBroadcaster == xBroadcaster ) + return; + + stopListening(); + m_xBroadcaster = xBroadcaster; + if( m_xBroadcaster.is() ) + m_xBroadcaster->addModifyListener( this ); +} +void ModifyListenerCallBack_impl::stopListening() +{ + if( m_xBroadcaster.is() ) + { + m_xBroadcaster->removeModifyListener( this ); + m_xBroadcaster.clear(); + } +} + +ModifyListenerCallBack::ModifyListenerCallBack( const Link<void*,void>& rCallBack ) + : pModifyListener_impl( new ModifyListenerCallBack_impl(rCallBack) ) + , m_xModifyListener( pModifyListener_impl ) +{ +} + +ModifyListenerCallBack::~ModifyListenerCallBack() +{ + stopListening(); +} + +void ModifyListenerCallBack::startListening( const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >& xBroadcaster ) +{ + pModifyListener_impl->startListening( xBroadcaster ); +} +void ModifyListenerCallBack::stopListening() +{ + pModifyListener_impl->stopListening(); +} + +} // namespace chart + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |