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00001 #ifndef COIN_SOEVENTCALLBACK_H 00002 #define COIN_SOEVENTCALLBACK_H 00003 00004 /**************************************************************************\ 00005 * 00006 * This file is part of the Coin 3D visualization library. 00007 * Copyright (C) 1998-2007 by Systems in Motion. All rights reserved. 00008 * 00009 * This library is free software; you can redistribute it and/or 00010 * modify it under the terms of the GNU General Public License 00011 * ("GPL") version 2 as published by the Free Software Foundation. 00012 * See the file LICENSE.GPL at the root directory of this source 00013 * distribution for additional information about the GNU GPL. 00014 * 00015 * For using Coin with software that can not be combined with the GNU 00016 * GPL, and for taking advantage of the additional benefits of our 00017 * support services, please contact Systems in Motion about acquiring 00018 * a Coin Professional Edition License. 00019 * 00020 * See http://www.coin3d.org/ for more information. 00021 * 00022 * Systems in Motion, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY. 00023 * http://www.sim.no/ sales@sim.no coin-support@coin3d.org 00024 * 00025 \**************************************************************************/ 00026 00027 #include <Inventor/nodes/SoSubNode.h> 00028 #include <Inventor/lists/SbList.h> 00029 00030 #ifndef COIN_INTERNAL 00031 // Added for Inventor compliance 00032 #include <Inventor/actions/SoHandleEventAction.h> 00033 #endif // !COIN_INTERNAL 00034 00035 class SoEventCallback; 00036 class SoPath; 00037 class SoEvent; 00038 class SoPickedPoint; 00039 class SoHandleEventAction; 00040 00041 typedef void SoEventCallbackCB(void * userdata, SoEventCallback * node); 00042 00043 class COIN_DLL_API SoEventCallback : public SoNode { 00044 typedef SoNode inherited; 00045 00046 SO_NODE_HEADER(SoEventCallback); 00047 00048 public: 00049 static void initClass(void); 00050 SoEventCallback(void); 00051 00052 void setPath(SoPath * path); 00053 const SoPath * getPath(void); 00054 00055 void addEventCallback(SoType eventtype, SoEventCallbackCB * f, 00056 void * userdata = NULL); 00057 void removeEventCallback(SoType eventtype, SoEventCallbackCB * f, 00058 void * userdata = NULL); 00059 00060 SoHandleEventAction * getAction(void) const; 00061 const SoEvent * getEvent(void) const; 00062 const SoPickedPoint * getPickedPoint(void) const; 00063 00064 void setHandled(void); 00065 SbBool isHandled(void) const; 00066 00067 void grabEvents(void); 00068 void releaseEvents(void); 00069 00070 protected: 00071 virtual ~SoEventCallback(); 00072 00073 virtual void handleEvent(SoHandleEventAction * action); 00074 00075 private: 00076 00077 struct CallbackInfo { 00078 SoEventCallbackCB * func; 00079 SoType eventtype; 00080 void * userdata; 00081 00082 // AIX native compiler xlC needs equality and inequality operators 00083 // to compile templates where these operators are referenced (even 00084 // if they are actually never used). 00085 00086 SbBool operator==(const CallbackInfo & cbi) { 00087 return this->func == cbi.func && this->eventtype == cbi.eventtype && this->userdata == cbi.userdata; 00088 } 00089 SbBool operator!=(const CallbackInfo & cbi) { 00090 return !(*this == cbi); 00091 } 00092 }; 00093 00094 SbList<CallbackInfo> callbacks; 00095 SoHandleEventAction * heaction; 00096 SoPath * path; 00097 00098 }; 00099 00100 #endif // !COIN_SOEVENTCALLBACK_H
Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.
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