DLLPlugi.h

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// BC  12/2/2004  \BobL120\Include\DLLPlugi.h

#ifndef __DLLPLUGI_H
#define __DLLPLUGI_H

#ifndef __HASHTIME_H
#include "HashTime.h"
#endif

#ifndef __HHASHOBJ_H
#include "sdk/HHashObj.h"
#endif

#ifndef __PTRMESSA_H
#include "PtrMessa.h"
#endif

class HProperty;
class HTreeObject;

class DLLPlugin {
public:
   HINSTANCE                 m_hresource;
   HTreeObject              *m_treeobject; //for ReassignPtr and so plugin knows owner
                                           //passed to CreatePLUGINTYPE
                                           //so CreatePLUGINTYPE knows plugins owner
                                           //currently CreatePLUGINTYPE must pass this through constructor to set this
                                           //grep for GetProcAddress and set this after creation to take burden off plugin writer
                                           //also expose GetOwner() that returns this
// CONSTRUCTION/DESTRUCTION
                             DLLPlugin() { Init(); }
                             DLLPlugin( HTreeObject *treeobject) { Init(); m_treeobject = treeobject; }
   virtual                  ~DLLPlugin() {}

   void Init();
   
   virtual void              Init( Time time ) {}
   virtual void              Copy( const DLLPlugin &other ) {}
   HTreeObject              *GetOwner() { return m_treeobject; }

// INTERFACE
   virtual UINT              GetIconID() { return 0; }

   virtual UINT              GetNameID() { return 0; }
   virtual char             *GetClassName() { return NULL; }

   virtual HProperty        *GetPropertyAt( int i ) { return NULL; }
   virtual int               GetNumProperties() 
   {
      int c;
      for(c=0; GetPropertyAt(c); c++);
      return c;
   }

// SERIALIZATION
   virtual BOOL              Save( char *&label, char *&value, int count ) { return FALSE; }
   virtual BOOL              ParseArg( const char *label, const char *value ) { return FALSE; }
   virtual BOOL              OnNotifyEndProjectLoad( float productversion ) { return TRUE; }

// POINTER MESSAGES
   virtual HTreeObject     **GetPtrAt( int index ) { return NULL; }
   void                      ReassignPtr( void *ptruplink, HTreeObject *newvalue ) {if (m_treeobject) m_treeobject->ReassignPtr(ptruplink, newvalue);}
   virtual BOOL              OnPtrMessage( PtrMessage ptrmessage, HTreeObject **ptruplink, LONG lparam, Time time=0 ) { return FALSE; }
};

inline void DLLPlugin::Init()
{
   HINSTANCE hlangdll;
   char exename[512];

   GetModuleFileName( AfxGetInstanceHandle(), exename, 512 );
   
#ifdef _OS9    
   char macname[512];
   GetFileTitle(exename, macname, 512);
   strcpy(exename, macname);
#endif   

   char *ptr;
   if (ptr = strrchr( exename, '.' ))
      *ptr = '\0';

   strcat(exename, ".lng");

   if (hlangdll = LoadLibrary(exename)) {
      AfxSetResourceHandle(hlangdll);      
      m_hresource = hlangdll;
   }
   else
      m_hresource = AfxGetInstanceHandle();
}

#endif

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