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csutil/plugldr.h

00001 /*
00002     Copyright (C) 1998-2001 by Jorrit Tyberghein
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_PLUGLDR_H__
00020 #define __CS_PLUGLDR_H__
00021 
00022 #include "csextern.h"
00023 #include "parray.h"
00024 #include "util.h"
00025 
00026 struct iObjectRegistry;
00027 
00029 struct csPluginLoadRec
00030 {
00031   char* Tag;
00032   char* ClassID;
00033   iBase* plugin;
00034 
00035   csPluginLoadRec (const char* iTag, const char* iClassID)
00036   { Tag = csStrNew (iTag); ClassID = csStrNew (iClassID); }
00037   ~csPluginLoadRec ()
00038   { delete [] ClassID; delete [] Tag; }
00039 };
00040 
00042 class CS_CSUTIL_EXPORT csPluginList : public csPDelArray<csPluginLoadRec>
00043 {
00044 public:
00045   bool Sort (iObjectRegistry* object_reg);
00046 private:
00047   bool RecurseSort (iObjectRegistry*, int row, int *order, int *loop,
00048     bool *matrix);
00049 };
00050 
00055 class CS_CSUTIL_EXPORT csPluginLoader
00056 {
00057   friend class csPluginList;
00058 
00059 private:
00060   // The object registry.
00061   iObjectRegistry* object_reg;
00062   // Requested plugins.
00063   csPluginList requested_plugins;
00064 
00065 public:
00067   csPluginLoader (iObjectRegistry* object_reg);
00069   virtual ~csPluginLoader ();
00070 
00081   void RequestPlugin (const char* pluginName, const char* tagName);
00082 
00084   bool LoadPlugins ();
00085 };
00086 
00087 #endif // __CS_PLUGLDR_H__
00088 

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