QVTKOpenGLWindow.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#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

VTK_ABI_NAMESPACE_BEGIN
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 setEnableTouchEventProcessing(bool enable);
  bool enableTouchEventProcessing() const { return this->EnableTouchEventProcessing; }


  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; }

Q_SIGNALS:
  void windowEvent(QEvent* e);

protected Q_SLOTS:
  void cleanupContext();

  void updateSize();

  friend class QVTKOpenGLStereoWidget;

protected: // NOLINT(readability-redundant-access-specifiers)
  bool event(QEvent* evt) override;
  void initializeGL() override;
  void paintGL() override;
  void resizeGL(int w, int h) override;

  vtkSmartPointer<vtkGenericOpenGLRenderWindow> RenderWindow;
  QScopedPointer<QVTKRenderWindowAdapter> RenderWindowAdapter;

private:
  Q_DISABLE_COPY(QVTKOpenGLWindow);
  bool EnableTouchEventProcessing = true;
  bool EnableHiDPI;
  int UnscaledDPI;
  double CustomDevicePixelRatio;
  QCursor DefaultCursor;
};

VTK_ABI_NAMESPACE_END
#endif