QGLWidgetAsOsgContext.h

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/******************************************************************************
** Copyright (c) 2023 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvOsgQt/vrvOsgQt.h>

#include <osgViewer/Viewer>
#include <QtOpenGL/QGLWidget>

QT_BEGIN_NAMESPACE
class QOpenGLContext;
class QSurface;
QT_END_NAMESPACE

namespace makVrv
{
   class DtDe;

   class DT_DLL_VRVOSGQT QGLWidgetAsOsgContext : public osgViewer::GraphicsWindowEmbedded
   {
   public:

      QGLWidgetAsOsgContext(DtDe& de, QGLWidget* qtgl,
         osg::GraphicsContext::Traits* traits, QOpenGLContext* openGLContext);

      virtual QGLWidget* widget();
      virtual void setWidget(QGLWidget* widget);
      virtual bool valid() const;

      virtual bool realizeImplementation();

      virtual bool isRealizedImplementation() const;

      virtual void closeImplementation();

      virtual void grabFocus();

      virtual void grabFocusIfPointerInWindow();

      virtual bool makeCurrentImplementation();

      virtual bool releaseContextImplementation();

      virtual void swapBuffersImplementation();

      virtual void requestWarpPointer(float x, float y);

      virtual void useCursor(bool onOff);

      virtual QOpenGLContext* singleVrvOpenGLContext();

   public:
      static QGLWidget* lastCurrentWidget(void);
   protected:
      QGLWidget* myWidget;
      DtDe& myDe;
      bool myRealizeCalled;

      // The VRV single opengl context.
      QOpenGLContext* myOpenGLContext;

      // The target suface that is being drawn to.
      QSurface* myTargetSurface;

      static QGLWidget* theLastCurrentWidget;
   };
}