ossimCallback2wRet< P1, P2, RT > Class Template Reference

Usage example, note template params can be anything: More...

#include <ossimCallback2wRet.h>

Public Member Functions
	ossimCallback2wRet ()
virtual	~ossimCallback2wRet ()
virtual RT	operator() (P1 p1, P2 p2) const =0

Detailed Description

template<class P1, class P2, class RT>
class ossimCallback2wRet< P1, P2, RT >

Usage example, note template params can be anything:

Caller interface to register callback:

void registerCallback(ossimCallback2wRet<const ossimFilename&, bool&, bool>* cb);

Callee creation of call back mechanism:

class ProcessFileCB: public ossimCallback2wRet<const ossimFilename&, bool&, bool>
{
public:
   ProcessFileCB(
      ossimImageElevationDatabase* obj,
      bool (ossimImageElevationDatabase::*func)(const ossimFilename&, bool&))
      :
      m_obj(obj),
      m_func(func)
   {}
      
   virtual bool operator()(const ossimFilename& file, bool& flag) const
   {
      return ( m_obj->*m_func)(file, flag);
   }

private:
   ossimImageElevationDatabase* m_obj;
   bool (ossimImageElevationDatabase::*m_func)(const ossimFilename& file, bool& flag);
};

Making/registering a callback.

ossimFileWalker* fw = new ossimFileWalker();

ossimCallback2wRet<const ossimFilename&, bool&, bool>* cb =
   new ProcessFileCB(this, &ossimImageElevationDatabase::processFile);

fw->registerProcessFileCallback(cb);

Definition at line 74 of file ossimCallback2wRet.h.

Constructor & Destructor Documentation

ossimCallback2wRet()

template<class P1, class P2, class RT>

ossimCallback2wRet< P1, P2, RT >::ossimCallback2wRet ( )

inline

Definition at line 77 of file ossimCallback2wRet.h.

{}

~ossimCallback2wRet()

template<class P1, class P2, class RT>

virtual ossimCallback2wRet< P1, P2, RT >::~ossimCallback2wRet ( )

inlinevirtual

Definition at line 78 of file ossimCallback2wRet.h.

{}

Member Function Documentation

operator()()

template<class P1, class P2, class RT>

virtual RT ossimCallback2wRet< P1, P2, RT >::operator() ( P1  p1, P2  p2  ) const

pure virtual

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The documentation for this class was generated from the following file:

• ossimCallback2wRet.h