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/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#ifndef GDCMEVENT_H
#define GDCMEVENT_H
#include "gdcmTypes.h"
namespace gdcm
{
//-----------------------------------------------------------------------------
/**
* \brief superclass for callback/observer methods
* \see Command Subject
*/
class GDCM_EXPORT Event
{
public :
Event();
Event(const Event&);
virtual ~Event();
/** Create an Event of this type This method work as a Factory for
* creating events of each particular type. */
virtual Event* MakeObject() const = 0;
/** Print Event information. This method can be overridden by
* specific Event subtypes. The default is to print out the type of
* the event. */
virtual void Print(std::ostream& os) const;
/** Return the StringName associated with the event. */
virtual const char * GetEventName(void) const = 0;
/** Check if given event matches or derives from this event. */
virtual bool CheckEvent(const Event*) const = 0;
protected:
private:
void operator=(const Event&); // Not implemented.
};
/// Generic inserter operator for Event and its subclasses.
inline std::ostream& operator<<(std::ostream& os, Event &e)
{
e.Print(os);
return os;
}
/*
* Macro for creating new Events
*/
#define gdcmEventMacro( classname , super ) \
/** \brief classname */ \
class classname : public super { \
public: \
typedef classname Self; \
typedef super Superclass; \
classname() {} \
virtual ~classname() {} \
virtual const char * GetEventName() const { return #classname; } \
virtual bool CheckEvent(const ::gdcm::Event* e) const \
{ return dynamic_cast<const Self*>(e) ? true : false; } \
virtual ::gdcm::Event* MakeObject() const \
{ return new Self; } \
classname(const Self&s) : super(s){}; \
private: \
void operator=(const Self&); \
}
/**
* Define some common GDCM events
*/
gdcmEventMacro( NoEvent , Event );
gdcmEventMacro( AnyEvent , Event );
gdcmEventMacro( StartEvent , AnyEvent );
gdcmEventMacro( EndEvent , AnyEvent );
//gdcmEventMacro( ProgressEvent , AnyEvent );
gdcmEventMacro( ExitEvent , AnyEvent );
gdcmEventMacro( AbortEvent , AnyEvent );
gdcmEventMacro( ModifiedEvent , AnyEvent );
gdcmEventMacro( InitializeEvent , AnyEvent );
gdcmEventMacro( IterationEvent , AnyEvent );
//gdcmEventMacro( AnonymizeEvent , AnyEvent );
gdcmEventMacro( UserEvent , AnyEvent );
} // end namespace gdcm
//-----------------------------------------------------------------------------
#endif //GDCMEVENT_H
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