itkImageViewer.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkImageViewer.h,v $
  Language:  C++
  Date:      $Date: 2002/10/17 03:36:25 $
  Version:   $Revision: 1.4 $

  Copyright (c) 2002 Insight Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

  Portions of this code are covered under the VTK copyright.
  See VTKCopyright.txt or http://www.kitware.com/VTKCopyright.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 notices for more information.

=========================================================================*/
#ifndef __itkImageViewer_h
#define __itkImageViewer_h

#include "itkProcessObject.h"
#include "itkImageViewerWindow.h"
#include "itkMinimumMaximumImageCalculator.h"


namespace itk
{

template <class TInputImage>
class ITK_EXPORT ImageViewer : public ProcessObject
{
public:
  typedef ImageViewer          Self;
  typedef ProcessObject   Superclass;
  typedef SmartPointer<Self>  Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  typedef TInputImage InputImageType;
  typedef typename InputImageType::Pointer      InputImagePointer;
  typedef typename InputImageType::PixelType    PixelType;
  typedef ImageViewerWindow::BufferPixelType    BufferPixelType;
  typedef itk::MinimumMaximumImageCalculator<
                                InputImageType> CalculatorType;
  
  itkNewMacro(Self);

  itkTypeMacro(ImageViewer,ProcessObject);

  void SetInput(const TInputImage *input);

  const InputImageType * GetInput(void);

  static void StartInteraction();
  
  void Show();

  void Update();

  void NextSlice();
  void PreviousSlice();
  itkSetMacro( SliceNumber, unsigned int );
  itkSetMacro( Direction, unsigned int );
  itkGetMacro( SliceNumber, unsigned int );
  itkGetMacro( Direction, unsigned int );
    
  virtual void  SetLabel(const char *label );

  void KeyPressedCallback();

  void MouseCallback();

protected:
  ImageViewer();
  virtual ~ImageViewer();
  void PrintSelf(std::ostream& os, Indent indent) const;

  void GenerateOutputInformation(void);

  void GenerateData(void);
  
  void PrepareBuffer();
 
private:
  ImageViewer(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  ImageViewerWindow  * m_Window;

  unsigned int         m_Direction;
  unsigned int         m_SliceNumber;
  
  typename CalculatorType::Pointer  m_Calculator;
  
  PixelType                m_Minimum;
  PixelType                m_Maximum;
  unsigned long            m_LastImageModifiedTime;

};

} // end namespace itk
  
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkImageViewer.txx"
#endif

#endif
  

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