itom 2.2.1
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00001 /* ******************************************************************** 00002 itom software 00003 URL: http://www.uni-stuttgart.de/ito 00004 Copyright (C) 2016, Institut fuer Technische Optik (ITO), 00005 Universitaet Stuttgart, Germany 00006 00007 This file is part of itom and its software development toolkit (SDK). 00008 00009 itom is free software; you can redistribute it and/or modify it 00010 under the terms of the GNU Library General Public Licence as published by 00011 the Free Software Foundation; either version 2 of the Licence, or (at 00012 your option) any later version. 00013 00014 In addition, as a special exception, the Institut fuer Technische 00015 Optik (ITO) gives you certain additional rights. 00016 These rights are described in the ITO LGPL Exception version 1.0, 00017 which can be found in the file LGPL_EXCEPTION.txt in this package. 00018 00019 itom is distributed in the hope that it will be useful, but 00020 WITHOUT ANY WARRANTY; without even the implied warranty of 00021 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library 00022 General Public Licence for more details. 00023 00024 You should have received a copy of the GNU Library General Public License 00025 along with itom. If not, see <http://www.gnu.org/licenses/>. 00026 *********************************************************************** */ 00027 00028 #ifndef ADDINGRABBER_H 00029 #define ADDINGRABBER_H 00030 00031 #include "addInInterface.h" 00032 00033 #include "../DataObject/dataobj.h" 00034 #include "sharedStructuresQt.h" 00035 #include "sharedStructures.h" 00036 00037 #if !defined(Q_MOC_RUN) || defined(ITOMCOMMONQT_MOC) //only moc this file in itomCommonQtLib but not in other libraries or executables linking against this itomCommonQtLib 00038 00039 namespace ito 00040 { 00041 class AddInGrabberPrivate; 00042 00043 class ITOMCOMMONQT_EXPORT AddInGrabber : public ito::AddInDataIO 00044 { 00045 Q_OBJECT 00046 00047 private: 00049 00055 int m_started; 00056 00057 AddInGrabberPrivate *dd; 00058 00059 protected: 00060 void timerEvent (QTimerEvent *event); 00062 00063 00072 virtual ito::RetVal checkData(ito::DataObject *externalDataObject = NULL); 00073 00075 00082 virtual ito::RetVal retrieveData(ito::DataObject *externalDataObject = NULL) = 0; 00083 00084 ito::RetVal sendDataToListeners(int waitMS); 00086 inline int grabberStartedCount() { return m_started; } 00089 inline void incGrabberStarted() 00090 { 00091 m_started++; 00092 if(m_started == 1) 00093 { 00094 runStatusChanged(true); //now, the device is started -> check if any listener is connected and if so start the auto grabbing timer (if flag is true, too) 00095 } 00096 } 00097 00099 inline void decGrabberStarted() 00100 { 00101 m_started--; 00102 if(m_started == 0) 00103 { 00104 runStatusChanged(false); //now, the device is stopped -> stop any possibly started auto grabbing listener 00105 } 00106 } 00107 00109 inline void setGrabberStarted(int value) 00110 { 00111 m_started = value; 00112 runStatusChanged( value > 0 ); 00113 } 00114 00115 ito::DataObject m_data; 00117 public: 00118 AddInGrabber(); 00119 ~AddInGrabber(); 00120 00121 }; 00122 } //end namespace ito 00123 00124 #endif //#if !defined(Q_MOC_RUN) || defined(ITOMCOMMONQT_MOC) 00125 00126 #endif