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00001 /******************************************************************************** 00002 * * 00003 * Atomic data target * 00004 * * 00005 ********************************************************************************* 00006 * Copyright (C) 2003 by Mathew Robertson. All Rights Reserved. * 00007 ********************************************************************************* 00008 * This library is free software; you can redistribute it and/or * 00009 * modify it under the terms of the GNU Lesser General Public * 00010 * License as published by the Free Software Foundation; either * 00011 * version 2.1 of the License, or (at your option) any later version. * 00012 * * 00013 * This library is distributed in the hope that it will be useful, * 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00016 * Lesser General Public License for more details. * 00017 * * 00018 * You should have received a copy of the GNU Lesser General Public * 00019 * License along with this library; if not, write to the Free Software * 00020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. * 00021 *********************************************************************************/ 00022 #ifndef FXATOMICDATATARGET_H 00023 #define FXATOMICDATATARGET_H 00024 00025 #ifndef FXDATATARGET_H 00026 #include <fox/FXDataTarget.h> 00027 using namespace FX; 00028 #endif 00029 namespace FXEX { 00030 00031 /** 00032 * FXAtomicDataTarget is very similar to a normal FXDataTarget. Except that it is 00033 * wrapped up in an FXAtomic so that multiple threads can access the values in the 00034 * valuator widgets (just like a normal data target). 00035 * 00036 * This allows you to create a worker thread (either by using the FXThreadFunction or 00037 * FXThread objects) which continually posts updates to widget values, without requiring 00038 * the programmer to create any glue code. 00039 */ 00040 class FXAPI FXAtomicIntDataTarget : public FXDataTarget { 00041 FXDECLARE(FXAtomicIntDataTarget) 00042 00043 public: 00044 enum { 00045 DT_ATOMIC_INT=FXDataTarget::DT_LAST, 00046 DT_LAST 00047 }; 00048 00049 public: 00050 long onCmdValue(FXObject*,FXSelector,void*); 00051 long onUpdValue(FXObject*,FXSelector,void*); 00052 long onCmdOption(FXObject*,FXSelector,void*); 00053 long onUpdOption(FXObject*,FXSelector,void*); 00054 00055 public: 00056 /// Create an atomic DataTarget 00057 FXAtomicIntDataTarget(FXObject *tgt=NULL,FXSelector sel=0); 00058 00059 /// Create an atomic DataTarget, and connect it 00060 FXAtomicIntDataTarget(FXAtomicInt &a,FXObject *tgt=NULL,FXSelector sel=0); 00061 00062 /// Associate with / connect to an atomic int 00063 void connect(FXAtomicInt &a); 00064 00065 /// dtor 00066 virtual ~FXAtomicIntDataTarget() {} 00067 }; 00068 00069 } // namespace FXEX 00070 #endif // FXATOMICDATATARGET_H 00071