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Diffstat (limited to 'slideshow/source/inc/listenercontainerimpl.hxx')
| -rw-r--r-- | slideshow/source/inc/listenercontainerimpl.hxx | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/slideshow/source/inc/listenercontainerimpl.hxx b/slideshow/source/inc/listenercontainerimpl.hxx deleted file mode 100644 index cecffec7b..000000000 --- a/slideshow/source/inc/listenercontainerimpl.hxx +++ /dev/null @@ -1,227 +0,0 @@ -/* -*- 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 INCLUDED_SLIDESHOW_LISTENERCONTAINERIMPL_HXX -#define INCLUDED_SLIDESHOW_LISTENERCONTAINERIMPL_HXX - -#include <sal/config.h> -#include <boost/weak_ptr.hpp> - -namespace slideshow { -namespace internal { - -//////////////////////////////////////////////////////////////////////////// - -struct EmptyBase -{ - struct EmptyGuard{ explicit EmptyGuard(EmptyBase) {} }; - struct EmptyClearableGuard - { - explicit EmptyClearableGuard(EmptyBase) {} - void clear() {} - void reset() {} - }; - - typedef EmptyGuard Guard; - typedef EmptyClearableGuard ClearableGuard; -}; - -class MutexBase -{ -public: - struct Guard : public osl::MutexGuard - { - explicit Guard(MutexBase const& rBase) : - osl::MutexGuard(rBase.maMutex) - {} - }; - struct ClearableGuard : public osl::ClearableMutexGuard - { - explicit ClearableGuard(MutexBase const& rBase) : - osl::ClearableMutexGuard(rBase.maMutex) - {} - }; - - mutable osl::Mutex maMutex; -}; - -//////////////////////////////////////////////////////////////////////////// - -template< typename result_type, typename ListenerTargetT > struct FunctionApply -{ - template<typename FuncT> static bool apply( - FuncT func, - ListenerTargetT const& rArg ) - { - return func(rArg); - } -}; - -template<typename ListenerTargetT> struct FunctionApply<void,ListenerTargetT> -{ - template<typename FuncT> static bool apply( - FuncT func, - ListenerTargetT const& rArg ) - { - func(rArg); - return true; - } -}; - -//////////////////////////////////////////////////////////////////////////// - -template< typename ListenerT > struct ListenerOperations -{ - /// Notify a single one of the listeners - template< typename ContainerT, - typename FuncT > - static bool notifySingleListener( ContainerT& rContainer, - FuncT func ) - { - const typename ContainerT::const_iterator aEnd( rContainer.end() ); - - // true: a handler in this queue processed the event - // false: no handler in this queue finally processed the event - return (std::find_if( rContainer.begin(), - aEnd, - func ) != aEnd); - } - - /// Notify all listeners - template< typename ContainerT, - typename FuncT > - static bool notifyAllListeners( ContainerT& rContainer, - FuncT func ) - { - bool bRet(false); - typename ContainerT::const_iterator aCurr( rContainer.begin() ); - typename ContainerT::const_iterator const aEnd ( rContainer.end() ); - while( aCurr != aEnd ) - { - if( FunctionApply< typename FuncT::result_type, - typename ContainerT::value_type >::apply( - func, - *aCurr) ) - { - bRet = true; - } - - ++aCurr; - } - - // true: at least one handler returned true - // false: not a single handler returned true - return bRet; - } - - /// Prune container from deceased listeners - template< typename ContainerT > - static void pruneListeners( ContainerT&, size_t ) - { - } -}; - -// specializations for weak_ptr -// ---------------------------- -template< typename ListenerTargetT > -struct ListenerOperations< boost::weak_ptr<ListenerTargetT> > -{ - template< typename ContainerT, - typename FuncT > - static bool notifySingleListener( ContainerT& rContainer, - FuncT func ) - { - typename ContainerT::const_iterator aCurr( rContainer.begin() ); - typename ContainerT::const_iterator const aEnd ( rContainer.end() ); - while( aCurr != aEnd ) - { - boost::shared_ptr<ListenerTargetT> pListener( aCurr->lock() ); - - if( pListener && func(pListener) ) - return true; - - ++aCurr; - } - - return false; - } - - template< typename ContainerT, - typename FuncT > - static bool notifyAllListeners( ContainerT& rContainer, - FuncT func ) - { - bool bRet(false); - typename ContainerT::const_iterator aCurr( rContainer.begin() ); - typename ContainerT::const_iterator const aEnd ( rContainer.end() ); - while( aCurr != aEnd ) - { - boost::shared_ptr<ListenerTargetT> pListener( aCurr->lock() ); - - if( pListener.get() && - FunctionApply< typename FuncT::result_type, - boost::shared_ptr<ListenerTargetT> >::apply(func,pListener) ) - { - bRet = true; - } - - ++aCurr; - } - - return bRet; - } - - template< typename ContainerT > - static void pruneListeners( ContainerT& rContainer, - size_t nSizeThreshold ) - { - if( rContainer.size() <= nSizeThreshold ) - return; - - ContainerT aAliveListeners; - aAliveListeners.reserve(rContainer.size()); - - typename ContainerT::const_iterator aCurr( rContainer.begin() ); - typename ContainerT::const_iterator const aEnd ( rContainer.end() ); - while( aCurr != aEnd ) - { - if( !aCurr->expired() ) - aAliveListeners.push_back( *aCurr ); - - ++aCurr; - } - - std::swap( rContainer, aAliveListeners ); - } -}; - -} // namespace internal -} // namespace Presentation - -#endif /* INCLUDED_SLIDESHOW_LISTENERCONTAINERIMPL_HXX */ - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |