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/*=========================================================================
Program: DICOMParser
Module: DICOMCallback.h
Language: C++
Copyright (c) 2003 Matt Turek
All rights reserved.
See Copyright.txt 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 __DICOM_CALLBACK_H_
#define __DICOM_CALLBACK_H_
#ifdef _MSC_VER
#pragma warning(disable : 4514)
#pragma warning(disable : 4786)
#pragma warning(disable : 4503)
#pragma warning(disable : 4710)
#pragma warning(disable : 4702)
#pragma warning(push, 3)
#endif
#include "DICOMConfig.h"
#include "DICOMParser.h"
//
// Pure virtual class that specifies the interface
// for a DICOMCallback.
//
// The DICOMParser allows a vector of callbacks to
// be specified for each group element tag. When
// a group, element with a registered callback is
// encountered, the callback is called and passed
// the group, element, type, data, and data length.
//
VTK_ABI_NAMESPACE_BEGIN
class DICOM_EXPORT DICOMCallback
{
public:
virtual ~DICOMCallback() {}
virtual void Execute(DICOMParser* parser, doublebyte group, doublebyte element,
DICOMParser::VRTypes type, unsigned char* val, quadbyte len) = 0;
};
//
// Subclass of DICOMCallback which can be used
// with member functions.
//
template <class T>
class DICOMMemberCallback : public DICOMCallback
{
public:
typedef void (T::*TMemberFunctionPointer)(DICOMParser* parser, doublebyte group,
doublebyte element, DICOMParser::VRTypes type, unsigned char* val, quadbyte len);
//
// Method to set the object and member function pointers
// that will be called in the callback.
//
void SetCallbackFunction(T* object, TMemberFunctionPointer memberFunction)
{
ObjectThis = object;
MemberFunction = memberFunction;
}
//
// Execute method implementation from DICOMCallback.
//
void Execute(DICOMParser* parser, doublebyte group, doublebyte element, DICOMParser::VRTypes type,
unsigned char* val, quadbyte len) override
{
if (MemberFunction)
{
((*ObjectThis).*(MemberFunction))(parser, group, element, type, val, len);
}
}
protected:
T* ObjectThis;
TMemberFunctionPointer MemberFunction;
};
#ifdef _MSC_VER
#pragma warning(pop)
#endif
VTK_ABI_NAMESPACE_END
#endif
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