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/*=========================================================================
Program: Visualization Toolkit
Module: vtkOldStyleCallbackCommand.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm 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.
=========================================================================*/
/**
* @class vtkOldStyleCallbackCommand
* @brief supports legacy function callbacks for VTK
*
* vtkOldStyleCallbackCommand is a callback that supports the legacy callback
* methods found in VTK. For example, the legacy method
* vtkProcessObject::SetStartMethod() is actually invoked using the
* command/observer design pattern of VTK, and the vtkOldStyleCallbackCommand
* is used to provide the legacy functionality. The callback function should
* have the form void func(void *clientdata), where clientdata is special data
* that should is associated with this instance of vtkCallbackCommand.
*
* @warning
* This is legacy glue. Please do not use; it will be eventually eliminated.
*
* @sa
* vtkCommand vtkCallbackCommand
*/
#ifndef vtkOldStyleCallbackCommand_h
#define vtkOldStyleCallbackCommand_h
#include "vtkCommonCoreModule.h" // For export macro
#include "vtkCommand.h"
// the old style void fund(void *) callbacks
class VTKCOMMONCORE_EXPORT vtkOldStyleCallbackCommand : public vtkCommand
{
public:
vtkTypeMacro(vtkOldStyleCallbackCommand,vtkCommand);
static vtkOldStyleCallbackCommand *New()
{return new vtkOldStyleCallbackCommand;};
/**
* Satisfy the superclass API for callbacks.
*/
void Execute(vtkObject *invoker,
unsigned long eid,
void *calldata) VTK_OVERRIDE;
//@{
/**
* Methods to set and get client and callback information.
*/
void SetClientData(void *cd)
{this->ClientData = cd;};
void SetCallback(void (*f)(void *clientdata))
{this->Callback = f;};
void SetClientDataDeleteCallback(void (*f)(void *))
{this->ClientDataDeleteCallback = f;};
//@}
void *ClientData;
void (*Callback)(void *);
void (*ClientDataDeleteCallback)(void *);
protected:
vtkOldStyleCallbackCommand();
~vtkOldStyleCallbackCommand() VTK_OVERRIDE;
};
#endif /* vtkOldStyleCallbackCommand_h */
// VTK-HeaderTest-Exclude: vtkOldStyleCallbackCommand.h
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