QmitkVideoBackground.h

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/*=========================================================================
 
Program:   Medical Imaging & Interaction Toolkit
Language:  C++
Date:      $Date$
Version:   $Revision$
 
Copyright (c) German Cancer Research Center, Division of Medical and
Biological Informatics. All rights reserved.
See MITKCopyright.txt or https://www.mitk.org/copyright.html 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 _Qmitk_Video_Background_h_
#define _Qmitk_Video_Background_h_

#include "mitkVideoSource.h"
#include "QmitkExtExports.h"

// Q-Timer
#include "qobject.h"
class QTimer;
class QTime;

class vtkRenderer;
class vtkRenderWindow;
class vtkImageActor;
class vtkImageImport;
class vtkActor2D;
class vtkVideoSizeCallback;


namespace mitk 
{

  struct VideoBackgroundVectorInfo
  {
    vtkRenderWindow*  renWin;
    vtkRenderer*      videoRenderer;
    vtkImageActor*    videoActor;
    vtkImageImport*   videoImport;
  };

}

class QmitkExt_EXPORT QmitkVideoBackground : public QObject
{
  Q_OBJECT

public:
  QmitkVideoBackground(mitk::VideoSource* v, int TimerDelay = 25); // TimerDelay = refresh rate of video in ms.
   ~QmitkVideoBackground();

  void AddRenderWindow(vtkRenderWindow* renderWindow);
  void RemoveRenderWindow(vtkRenderWindow* renderWindow);
  bool IsRenderWindowIncluded(vtkRenderWindow* renderWindow);

  void SetTimerDelay(int ms)
  {
    m_TimerDelay = ms;
    ResetVideoBackground();
  }
  void Enable();
  void Disable();
  bool IsEnabled();

  mitk::VideoSource* GetVideoSource() { return m_VideoSource; }
  int GetTimerDelay() { return m_TimerDelay; }
  
  public slots:
    void UpdateVideo();
  signals:
    void NewFrameAvailable(mitk::VideoSource*);

protected:
  void ResetVideoBackground();

  void Modified();

  typedef std::vector<mitk::VideoBackgroundVectorInfo> RenderWindowVectorInfoType;
  RenderWindowVectorInfoType      m_renderWindowVectorInfo;
 
  //for framegrabbing
  QTimer*                     m_QTimer;

  //VideoSource
  mitk::VideoSource*          m_VideoSource;

  int m_TimerDelay;
};

#endif