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67 lines
2.3 KiB
67 lines
2.3 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkOldStyleCallbackCommand.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 vtkOldStyleCallbackCommand - supports legacy function callbacks for VTK
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// .SECTION Description
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// vtkOldStyleCallbackCommand is a callback that supports the legacy callback
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// methods found in VTK. For example, the legacy method
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// vtkProcessObject::SetStartMethod() is actually invoked using the
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// command/observer design pattern of VTK, and the vtkOldStyleCallbackCommand
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// is used to provide the legacy functionality. The callback function should
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// have the form void func(void *clientdata), where clientdata is special data
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// that should is associated with this instance of vtkCallbackCommand.
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//
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// .SECTION Caveats
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// This is legacy glue. Please do not use; it will be eventually eliminated.
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// .SECTION See Also
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// vtkCommand vtkCallbackCommand
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#ifndef __vtkOldStyleCallbackCommand_h
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#define __vtkOldStyleCallbackCommand_h
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#include "vtkCommand.h"
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// the old style void fund(void *) callbacks
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class VTK_COMMON_EXPORT vtkOldStyleCallbackCommand : public vtkCommand
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{
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public:
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static vtkOldStyleCallbackCommand *New()
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{return new vtkOldStyleCallbackCommand;};
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// Description:
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// Satisfy the superclass API for callbacks.
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void Execute(vtkObject *invoker, unsigned long eid, void *calldata);
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// Description:
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// Methods to set and get client and callback information.
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void SetClientData(void *cd)
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{this->ClientData = cd;};
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void SetCallback(void (*f)(void *clientdata))
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{this->Callback = f;};
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void SetClientDataDeleteCallback(void (*f)(void *))
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{this->ClientDataDeleteCallback = f;};
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void *ClientData;
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void (*Callback)(void *);
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void (*ClientDataDeleteCallback)(void *);
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protected:
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vtkOldStyleCallbackCommand();
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~vtkOldStyleCallbackCommand();
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};
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#endif /* __vtkOldStyleCallbackCommand_h */
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