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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkEventForwarderCommand
* @brief a simple event forwarder command
*
* Use vtkEventForwarderCommand to forward an event to a new object.
* This command will intercept the event, and use InvokeEvent
* on a 'target' as if that object was the one that invoked the event instead
* of the object this command was attached to using AddObserver.
*
* @sa
* vtkCommand
*/
#ifndef vtkEventForwarderCommand_h
#define vtkEventForwarderCommand_h
#include "vtkCommand.h"
#include "vtkCommonCoreModule.h" // For export macro
VTK_ABI_NAMESPACE_BEGIN
class VTKCOMMONCORE_EXPORT vtkEventForwarderCommand : public vtkCommand
{
public:
vtkTypeMacro(vtkEventForwarderCommand, vtkCommand);
static vtkEventForwarderCommand* New() { return new vtkEventForwarderCommand; }
/**
* Satisfy the superclass API for callbacks. Recall that the caller is
* the instance invoking the event; eid is the event id (see
* vtkCommand.h); and calldata is information sent when the callback
* was invoked (e.g., progress value in the vtkCommand::ProgressEvent).
*/
void Execute(vtkObject* caller, unsigned long eid, void* callData) override;
/**
* Methods to set and get client and callback information, and the callback
* function.
*/
virtual void SetTarget(vtkObject* obj) { this->Target = obj; }
virtual void* GetTarget() { return this->Target; }
protected:
vtkObject* Target;
vtkEventForwarderCommand();
~vtkEventForwarderCommand() override = default;
};
VTK_ABI_NAMESPACE_END
#endif /* vtkEventForwarderCommand_h */
// VTK-HeaderTest-Exclude: vtkEventForwarderCommand.h
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