QVTKOpenGLNativeWidget.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    QVTKOpenGLNativeWidget.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 QVTKOpenGLNativeWidget_h
#define QVTKOpenGLNativeWidget_h
 
#include <QOpenGLWidget>
#include <QScopedPointer> // for QScopedPointer.
 
#include "QVTKInteractor.h"        // needed for QVTKInteractor
#include "vtkDeprecation.h"        // For VTK_DEPRECATED_IN_9_0_0
#include "vtkGUISupportQtModule.h" // for export macro
#include "vtkNew.h"                // needed for vtkNew
#include "vtkSmartPointer.h"       // needed for vtkSmartPointer
 
class QVTKInteractor;
class QVTKInteractorAdapter;
class QVTKRenderWindowAdapter;
class vtkGenericOpenGLRenderWindow;
 
class VTKGUISUPPORTQT_EXPORT QVTKOpenGLNativeWidget : public QOpenGLWidget
{
  Q_OBJECT
  typedef QOpenGLWidget Superclass;
 
public:
  QVTKOpenGLNativeWidget(QWidget* parent = nullptr, Qt::WindowFlags f = Qt::WindowFlags());
  QVTKOpenGLNativeWidget(vtkGenericOpenGLRenderWindow* window, QWidget* parent = nullptr,
    Qt::WindowFlags f = Qt::WindowFlags());
  ~QVTKOpenGLNativeWidget() override;
 
 
  void setRenderWindow(vtkGenericOpenGLRenderWindow* win);
  void setRenderWindow(vtkRenderWindow* win);
 
  vtkRenderWindow* renderWindow() const;
 
  QVTKInteractor* interactor() const;
 
  static QSurfaceFormat defaultFormat(bool stereo_capable = false);
 
 
  void setEnableHiDPI(bool enable);
  bool enableHiDPI() const { return this->EnableHiDPI; }
 
 
  void setUnscaledDPI(int);
  int unscaledDPI() const { return this->UnscaledDPI; }
 
 
  void setCustomDevicePixelRatio(double cdpr);
  double customDevicePixelRatio() const { return this->CustomDevicePixelRatio; }
  double effectiveDevicePixelRatio() const;
 
 
  void setDefaultCursor(const QCursor& cursor);
  const QCursor& defaultCursor() const { return this->DefaultCursor; }
 
 
  VTK_DEPRECATED_IN_9_0_0("Use QVTKOpenGLNativeWidget::setRenderWindow")
  void SetRenderWindow(vtkGenericOpenGLRenderWindow* win);
  VTK_DEPRECATED_IN_9_0_0("Use QVTKOpenGLNativeWidget::setRenderWindow")
  void SetRenderWindow(vtkRenderWindow* win);
 
 
  VTK_DEPRECATED_IN_9_0_0("Use QVTKOpenGLNativeWidget::renderWindow")
  vtkRenderWindow* GetRenderWindow();
  VTK_DEPRECATED_IN_9_0_0("Removed in 9.0.0 (internal)")
  QVTKInteractor* GetInteractor();
 
  VTK_DEPRECATED_IN_9_0_0("Removed in 9.0.0 (internal)")
  QVTKInteractorAdapter* GetInteractorAdapter();
 
  VTK_DEPRECATED_IN_9_0_0("Use QWidget::setCursor")
  void setQVTKCursor(const QCursor& cursor);
 
  VTK_DEPRECATED_IN_9_0_0("Use QWidget::setDefaultCursor")
  void setDefaultQVTKCursor(const QCursor& cursor);
 
protected Q_SLOTS:
  virtual void cleanupContext();
 
  void updateSize();
 
protected:
  bool event(QEvent* evt) override;
  void initializeGL() override;
  void paintGL() override;
 
protected:
  vtkSmartPointer<vtkGenericOpenGLRenderWindow> RenderWindow;
  QScopedPointer<QVTKRenderWindowAdapter> RenderWindowAdapter;
 
private:
  Q_DISABLE_COPY(QVTKOpenGLNativeWidget);
 
  bool EnableHiDPI;
  int UnscaledDPI;
  double CustomDevicePixelRatio;
  QCursor DefaultCursor;
};
 
#endif