FBX SDK Reference Guide: kfbxeventhandler.h Source File
00001 #ifndef __FBXEVENTS_FBXEVENTHANDLER_H__
00002 #define __FBXEVENTS_FBXEVENTHANDLER_H__
00003 
00004 /**************************************************************************************
00005 
00006  Copyright  2001 - 2008 Autodesk, Inc. and/or its licensors.
00007  All Rights Reserved.
00008 
00009  The coded instructions, statements, computer programs, and/or related material 
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00013  treaties. 
00014  
00015  The Data may not be disclosed or distributed to third parties, in whole or in
00016  part, without the prior written consent of Autodesk, Inc. ("Autodesk").
00017 
00018  THE DATA IS PROVIDED "AS IS" AND WITHOUT WARRANTY.
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00025  
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00036 
00037 **************************************************************************************/
00038 #include <kaydaradef.h>
00039 #ifndef KFBX_DLL 
00040     #define KFBX_DLL K_DLLIMPORT
00041 #endif
00042 
00043 // Local includes
00044 #include <kfbxevents/kfbxevents.h>
00045 
00046 // FBX include
00047 #include <klib/kintrusivelist.h>
00048 
00049 // FBX namespace begin
00050 #include <fbxfilesdk_nsbegin.h>
00051 namespace kfbxevents
00052 {
00053     class KFbxListener;
00054 
00055     //-----------------------------------------------------------------
00056     class KFbxEventHandler
00057     {
00058     public:
00059         enum
00060         {
00061             eNODE_LISTENER = 0,
00062             eNODE_EMITTER,
00063             eNODE_COUNT
00064         };
00065 
00066         KFbxEventHandler(){}
00067         virtual ~KFbxEventHandler(){}
00068 
00069         // Handler handles a certain type of event
00070         virtual int GetHandlerEventType() = 0;
00071         virtual void FunctionCall(const KFbxEventBase& pEvent) = 0;
00072         virtual KFbxListener* GetListener() = 0;
00073 
00074         LISTNODE(KFbxEventHandler, eNODE_COUNT);
00075     };
00076 
00077     //-----------------------------------------------------------------
00078     template <typename EventType, typename ListenerType>
00079     class KFbxMemberFuncEventHandler : public KFbxEventHandler
00080     {
00081     // VC6Note: There's no reason why the callback is a (const EventType*) it is obvious that it should be
00082     //           a (const EventType&) but because of a VC6 template limitation, we put  a pointer. 
00083     typedef void (ListenerType::*CBFunction)(const EventType*);
00084 
00085     public:
00086         KFbxMemberFuncEventHandler(ListenerType* pListenerInstance, CBFunction pFunc) :
00087             mFunc(pFunc),
00088             mListener(pListenerInstance){}
00089 
00090         // From KFbxEventHandler
00091         virtual int GetHandlerEventType(){ return EventType::GetStaticTypeId(); }  
00092         virtual void FunctionCall(const KFbxEventBase& pEvent){ (*mListener.*mFunc)(reinterpret_cast<const EventType*>(&pEvent)); } 
00093         virtual KFbxListener* GetListener(){ return mListener;}
00094     
00095     private:
00096         ListenerType* mListener;
00097 
00098         // The callback function
00099         CBFunction mFunc;
00100     };
00101 
00102     //-----------------------------------------------------------------
00103     template <typename EventType, typename ListenerType>
00104     class KFbxConstMemberFuncEventHandler : public KFbxEventHandler
00105     {
00106     // VC6Note: There's no reason why the callback is a (const EventType*) it is obvious that it should be
00107     //           a (const EventType&) but because of a VC6 template limitation, we put  a pointer. 
00108     typedef void (ListenerType::*CBFunction)(const EventType*)const;
00109 
00110     public:
00111         KFbxConstMemberFuncEventHandler(ListenerType* pListenerInstance, CBFunction pFunc) :
00112             mFunc(pFunc),
00113             mListener(pListenerInstance){}
00114 
00115         // From KFbxEventHandler
00116         virtual int GetHandlerEventType(){ return EventType::GetStaticTypeId(); }    
00117         virtual void FunctionCall(const KFbxEventBase& pEvent){ (*mListener.*mFunc)(reinterpret_cast<const EventType*>(&pEvent)); }
00118         virtual KFbxListener* GetListener(){ return mListener;}
00119 
00120     private:
00121         ListenerType* mListener;
00122 
00123         // The callback function
00124         CBFunction mFunc;
00125     };
00126 
00127     //-----------------------------------------------------------------
00128     template <typename EventType>
00129     class KFbxFuncEventHandler : public KFbxEventHandler
00130     {
00131     // VC6Note: There's no reason why the callback is a (const EventType*,KFbxListener*) it is obvious that it should be
00132     //           a (const EventType&,KFbxListener*) but because of a VC6 template limitation, we put  a pointer.
00133     typedef void (*CBFunction)(const EventType*,KFbxListener*);
00134 
00135     public:
00136         KFbxFuncEventHandler(KFbxListener* pListener, CBFunction pFunc) :
00137             mFunc(pFunc),
00138             mListener(pListener){}
00139 
00140         // From KFbxEventHandler
00141         virtual int GetHandlerEventType(){ return EventType::GetStaticTypeId(); }   
00142         virtual void FunctionCall(const KFbxEventBase& pEvent){ (*mFunc)(reinterpret_cast<const EventType*>(&pEvent),mListener); }
00143         virtual KFbxListener* GetListener(){ return mListener; }
00144 
00145     private:
00146         KFbxListener* mListener;
00147 
00148         // The callback function
00149         CBFunction mFunc;
00150     };
00151 }
00152 // FBX namespace end
00153 #include <fbxfilesdk_nsend.h>
00154 
00155 #endif