OpenWalnut  1.4.0
WModuleOutputConnector.cpp
00001 //---------------------------------------------------------------------------
00002 //
00003 // Project: OpenWalnut ( http://www.openwalnut.org )
00004 //
00005 // Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS
00006 // For more information see http://www.openwalnut.org/copying
00007 //
00008 // This file is part of OpenWalnut.
00009 //
00010 // OpenWalnut is free software: you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as published by
00012 // the Free Software Foundation, either version 3 of the License, or
00013 // (at your option) any later version.
00014 //
00015 // OpenWalnut is distributed in the hope that it will be useful,
00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00018 // GNU Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public License
00021 // along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>.
00022 //
00023 //---------------------------------------------------------------------------
00024 
00025 #include <string>
00026 
00027 #include <boost/signals2/signal.hpp>
00028 #include <boost/signals2/connection.hpp>
00029 
00030 #include "WModuleInputConnector.h"
00031 #include "WModuleConnectorSignals.h"
00032 
00033 #include "WModuleOutputConnector.h"
00034 
00035 WModuleOutputConnector::WModuleOutputConnector( boost::shared_ptr< WModule > module, std::string name, std::string description ):
00036     WModuleConnector( module, name, description )
00037 {
00038     // initialize members
00039 }
00040 
00041 WModuleOutputConnector::~WModuleOutputConnector()
00042 {
00043     // cleanup
00044 }
00045 
00046 bool WModuleOutputConnector::connectable( boost::shared_ptr<WModuleConnector> con )
00047 {
00048     // output connectors are just allowed to get connected with input connectors
00049     if( dynamic_cast<WModuleInputConnector*>( con.get() ) )  // NOLINT - since we really need them here
00050     {
00051         return true;
00052     }
00053 
00054     return false;
00055 }
00056 
00057 boost::signals2::connection WModuleOutputConnector::subscribeSignal( MODULE_CONNECTOR_SIGNAL signal,
00058                                                                      t_GenericSignalHandlerType notifier )
00059 {
00060     // connect DataChanged signal
00061     switch( signal )
00062     {
00063         case DATA_CHANGED:
00064             return signal_DataChanged.connect( notifier );
00065         default:    // we do not know this signal: maybe the base class knows it
00066             return WModuleConnector::subscribeSignal( signal, notifier );
00067     }
00068 }
00069 
00070 void WModuleOutputConnector::propagateDataChange()
00071 {
00072     signal_DataChanged( boost::shared_ptr<WModuleConnector>(), shared_from_this() );
00073 }
00074 
00075 bool WModuleOutputConnector::isInputConnector() const
00076 {
00077     return false;
00078 }
00079 
00080 bool WModuleOutputConnector::isOutputConnector() const
00081 {
00082     return true;
00083 }