QVTKOpenGLWidget.h

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

  Program:   Visualization Toolkit
  Module:    QVTKOpenGLWidget.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.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 notice for more information.

=========================================================================*/
#ifndef QVTKOpenGLWidget_h
#define QVTKOpenGLWidget_h

#include "vtkGUISupportQtModule.h" // For export macro

#include <QWidget>

// Forward Qt class declarations
class QSurfaceFormat;
class QOpenGLContext;

//class QVTKInteractor;
class QVTKInteractorAdapter;
class QVTKOpenGLWindow;
class vtkGenericOpenGLRenderWindow;
class vtkRenderWindow;
class vtkRenderWindowInteractor;

class VTKGUISUPPORTQT_EXPORT QVTKOpenGLWidget : public QWidget
{
  Q_OBJECT
  typedef QWidget Superclass;
public:
  QVTKOpenGLWidget(QWidget* parent = Q_NULLPTR,
    Qt::WindowFlags f = Qt::WindowFlags());
  QVTKOpenGLWidget(QOpenGLContext *shareContext, QWidget* parent = Q_NULLPTR,
    Qt::WindowFlags f = Qt::WindowFlags());
  QVTKOpenGLWidget(vtkGenericOpenGLRenderWindow* w,
    QWidget* parent = Q_NULLPTR, Qt::WindowFlags f = Qt::WindowFlags());
  QVTKOpenGLWidget(vtkGenericOpenGLRenderWindow* w, QOpenGLContext *shareContext,
    QWidget* parent = Q_NULLPTR, Qt::WindowFlags f = Qt::WindowFlags());
  ~QVTKOpenGLWidget() override;

  void SetRenderWindow(vtkGenericOpenGLRenderWindow* win);
  void SetRenderWindow(vtkRenderWindow* win);

  virtual vtkRenderWindow* GetRenderWindow();

  virtual vtkRenderWindowInteractor* GetInteractor();

  virtual QVTKInteractorAdapter* GetInteractorAdapter();

  static QSurfaceFormat defaultFormat();

  void setFormat(const QSurfaceFormat& format);

  virtual void setEnableHiDPI(bool enable);
  virtual bool enableHiDPI() { return this->EnableHiDPI; }

  void setQVTKCursor(const QCursor &cursor);

  virtual bool isValid();

  virtual bool testingEvent(QEvent* e);

  QImage grabFramebuffer();

signals:
  void mouseEvent(QMouseEvent* event);

  void resized();

  void widgetEvent(QEvent* e);

private slots:
  void windowEvent(QEvent* event);

protected:
  virtual void resizeEvent(QResizeEvent* event) Q_DECL_OVERRIDE;
  virtual bool event(QEvent* e) Q_DECL_OVERRIDE;

  bool EnableHiDPI = true;

private:
  QVTKOpenGLWindow* qVTKOpenGLWindowInternal;
};

#endif