QVTKOpenGLWindow.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    QVTKOpenGLWindow.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 QVTKOpenGLWindow_h
#define QVTKOpenGLWindow_h
 
#include <QOpenGLWindow>
#include <QScopedPointer> // for QScopedPointer.
 
#include "QVTKInteractor.h"        // needed for QVTKInteractor
#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 QVTKOpenGLWindow : public QOpenGLWindow
{
  Q_OBJECT
  typedef QOpenGLWindow Superclass;
 
public:
  QVTKOpenGLWindow(
    QOpenGLWindow::UpdateBehavior updateBehavior = NoPartialUpdate, QWindow* parent = nullptr);
  QVTKOpenGLWindow(QOpenGLContext* shareContext,
    QOpenGLWindow::UpdateBehavior updateBehavior = NoPartialUpdate, QWindow* parent = nullptr);
  QVTKOpenGLWindow(vtkGenericOpenGLRenderWindow* renderWindow,
    QOpenGLWindow::UpdateBehavior updateBehavior = NoPartialUpdate, QWindow* parent = nullptr);
  QVTKOpenGLWindow(vtkGenericOpenGLRenderWindow* renderWindow, QOpenGLContext* shareContext,
    QOpenGLWindow::UpdateBehavior updateBehavior = NoPartialUpdate, QWindow* parent = nullptr);
  ~QVTKOpenGLWindow() 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 setDefaultCursor(const QCursor& cursor);
  const QCursor& defaultCursor() const { return this->DefaultCursor; }
 
 
  VTK_LEGACY(void SetRenderWindow(vtkGenericOpenGLRenderWindow* win));
  VTK_LEGACY(void SetRenderWindow(vtkRenderWindow* win));
 
 
  VTK_LEGACY(vtkRenderWindow* GetRenderWindow());
  VTK_LEGACY(QVTKInteractor* GetInteractor());
 
  VTK_LEGACY(QVTKInteractorAdapter* GetInteractorAdapter());
 
  VTK_LEGACY(void setQVTKCursor(const QCursor& cursor));
 
  VTK_LEGACY(void setDefaultQVTKCursor(const QCursor& cursor));
 
signals:
  void windowEvent(QEvent* e);
 
protected slots:
  void cleanupContext();
 
  void updateSize();
 
  friend class QVTKOpenGLStereoWidget;
 
protected:
  bool event(QEvent* evt) override;
  void initializeGL() override;
  void paintGL() override;
  void resizeGL(int w, int h) override;
 
protected:
  vtkSmartPointer<vtkGenericOpenGLRenderWindow> RenderWindow;
  QScopedPointer<QVTKRenderWindowAdapter> RenderWindowAdapter;
 
private:
  Q_DISABLE_COPY(QVTKOpenGLWindow);
  bool EnableHiDPI;
  int UnscaledDPI;
  QCursor DefaultCursor;
};
 
#endif