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# iutil/eventhandlers.h

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    00001 /*
    00002   Copyright (C) 2005 by Adam D. Bradley <artdodge@cs.bu.edu>
    00003
    00004   This library is free software; you can redistribute it and/or
    00005   modify it under the terms of the GNU Library General Public
    00006   License as published by the Free Software Foundation; either
    00007   version 2 of the License, or (at your option) any later version.
    00008
    00009   This library is distributed in the hope that it will be useful,
    00010   but WITHOUT ANY WARRANTY; without even the implied warranty of
    00011   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00012   Library General Public License for more details.
    00013
    00014   You should have received a copy of the GNU Library General Public
    00015   License along with this library; if not, write to the Free
    00016   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    00017 */
    00018
    00019 #ifndef __CS_IUTIL_EVENTHANDLERS_H__
    00020 #define __CS_IUTIL_EVENTHANDLERS_H__
    00021
    00022 #include "csutil/strset.h"
    00023
    00032 typedef csStringID csHandlerID;
    00033 #define CS_HANDLER_INVALID csInvalidStringID
    00034 #define CS_HANDLERLIST_END csInvalidStringID
    00035
    00036 #ifndef CSHASHCOMPUTER_EVENTENGINE_IDS
    00037 #define CSHASHCOMPUTER_EVENTENGINE_IDS
    00038 CS_SPECIALIZE_TEMPLATE
    00039 class csHashComputer<const csHandlerID>
    00040 {
    00041 public:
    00042   static uint ComputeHash (const csHandlerID &mid)
    00043   {
    00044     return (uint) mid;
    00045   }
    00046 };
    00047 #endif // CSHASHCOMPUTER_EVENTENGINE_IDS
    00048
    00049 struct iEventHandler;
    00050
    00058 struct iEventHandlerRegistry : public virtual iBase
    00059 {
    00060   SCF_INTERFACE(iEventHandlerRegistry, 1, 1, 0);
    00061
    00067   virtual CS_CONST_METHOD csHandlerID GetGenericID (const csString &) = 0;
    00068   virtual CS_CONST_METHOD csHandlerID GetGenericPreBoundID (csHandlerID) = 0;
    00069   virtual CS_CONST_METHOD csHandlerID GetGenericPostBoundID (csHandlerID) = 0;
    00074   virtual csHandlerID GetID (iEventHandler *) = 0;
    00078   virtual void ReleaseID (csHandlerID id) = 0;
    00082   virtual void ReleaseID (iEventHandler *) = 0;
    00088   virtual CS_CONST_METHOD iEventHandler *GetHandler (csHandlerID id) = 0;
    00094   virtual CS_CONST_METHOD bool const IsInstanceOf (csHandlerID instanceid, csHandlerID genericid) = 0;
    00098   virtual CS_CONST_METHOD bool const IsInstance (csHandlerID id) = 0;
    00102   virtual CS_CONST_METHOD csHandlerID const GetGeneric (csHandlerID id) = 0;
    00106   virtual CS_CONST_METHOD const char *GetString (csHandlerID id) = 0;
    00107 };
    00108
    00111 #endif // __CS_IUTIL_EVENTHANDLERS_H__