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61 lines
2.0 KiB
61 lines
2.0 KiB
2 years ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkEventForwarderCommand.h,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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// .NAME vtkEventForwarderCommand - a simple event forwarder command
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// .SECTION Description
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// Use vtkEventForwarderCommand to forward an event to a new object.
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// This command will intercept the event, and use InvokeEvent
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// on a 'target' as if that object was the one that invoked the event instead
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// of the object this commmand was attached to using AddObserver.
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//
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// .SECTION See Also
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// vtkCommand
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#ifndef __vtkEventForwarderCommand_h
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#define __vtkEventForwarderCommand_h
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#include "vtkCommand.h"
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class VTK_COMMON_EXPORT vtkEventForwarderCommand : public vtkCommand
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{
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public:
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static vtkEventForwarderCommand *New()
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{return new vtkEventForwarderCommand;};
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// Description:
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// Satisfy the superclass API for callbacks. Recall that the caller is
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// the instance invoking the event; eid is the event id (see
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// vtkCommand.h); and calldata is information sent when the callback
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// was invoked (e.g., progress value in the vtkCommand::ProgressEvent).
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void Execute(vtkObject *caller, unsigned long eid, void *callData);
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// Description:
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// Methods to set and get client and callback information, and the callback
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// function.
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virtual void SetTarget(vtkObject *obj)
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{ this->Target = obj; }
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virtual void* GetTarget()
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{ return this->Target; }
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protected:
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vtkObject *Target;
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vtkEventForwarderCommand();
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~vtkEventForwarderCommand() {};
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};
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#endif /* __vtkEventForwarderCommand_h */
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