DtOsgAdapterQtWidget.h

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/******************************************************************************
** Copyright (c) 2015 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/



#include <vrvOsgQt/vrvOsgQt.h>

#include <vrvUtil/DtVirtualBaseClass.h>

//We use winsock2, but QGLWidget includes windows.h so we have to get ws2 in first
#ifdef _WIN32
#include <WinSock2.h>
#endif

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

#include <boost/signal.hpp>

namespace osg
{
   class GraphicsContext;
}

namespace makVrv
{
   class DtWindow;

   class DtChannel;
   class DtOsgAdapterQtWidgetLogic;


   class DT_DLL_VRVOSGQT DtOsgAdapterQtWidget : public QGLWidget
   {
      Q_OBJECT;
   public:

      DtOsgAdapterQtWidget( DtDe& de, osg::GraphicsContext::Traits* contextTraits,
         const QGLFormat& format,
         QWidget * parent = 0, 
         Qt::WindowFlags f = 0 );

      virtual ~DtOsgAdapterQtWidget();

      osgViewer::GraphicsWindow* graphicsWindow();

      void setView(DtWindow* window);
      DtWindow* view() const;
      
      osgGA::GUIEventAdapter::KeySymbol osgKeyFromQtKeyEvent( QKeyEvent* event );

      void processKeyPressEvent( QKeyEvent* keyEvent );
      
      void processKeyReleaseEvent( QKeyEvent* keyEvent );
      
      virtual void mouseMoveEvent( QMouseEvent* event );
      
      virtual void focusInEvent( QFocusEvent * event );
      virtual void focusOutEvent( QFocusEvent * event );
      
      static QGLFormat createFormatFromTraits(
         const osg::GraphicsContext::Traits* contextTraits);

      virtual QSize sizeHint();
      
      virtual void slot_onRightClickTerrainMenuRequest( double mouseX, 
         double mouseY, DtChannel* channel );
      
      virtual void slot_onRightClickSelectionMenuRequest( double mouseX, 
         double mouseY, DtChannel* channel );
      
      boost::signal<void (DtOsgAdapterQtWidget*)> signal_mouseEnter;
      boost::signal<void (DtOsgAdapterQtWidget*)> signal_mouseExit;

   protected:
      void init();

      virtual bool channelInThisWidget( const DtChannel& channel );

      virtual void resizeEvent( QResizeEvent* event);
      virtual void keyPressEvent(QKeyEvent *);
      virtual void keyReleaseEvent(QKeyEvent *);
      virtual void mousePressEvent( QMouseEvent* event );
      virtual void mouseReleaseEvent( QMouseEvent* event );
      virtual void enterEvent( QEvent* event );
      virtual void leaveEvent( QEvent* event );

      int qtButtonToOsgButton( QMouseEvent* event);
      virtual void mouseDoubleClickEvent(QMouseEvent* event);
      virtual void wheelEvent(QWheelEvent *);
      virtual void closeEvent(QCloseEvent*);     
      virtual void slot_ctrlEnterPressed( const DtChannel& channel );
       
   protected:

      osg::ref_ptr<osgViewer::GraphicsWindowEmbedded> myEmbeddedWindow;

      DtDe& myDe;
      DtWindow* myWindow;     
      DtOsgAdapterQtWidgetLogic* myLogic;
      
      // These are here to work around a bug in Qt 4.5 (and other versions??) where
      // a doubleclick mouse event is followed by a stray release event.
      bool myLeftPressed;
      bool myMiddlePressed;
      bool myRightPressed;
   };

   class DT_DLL_VRVOSGQT DtOsgAdapterQtWidgetCreator : public DtVirtualBaseClass
   {

   public:
      static DtOsgAdapterQtWidgetCreator& instance(DtDe& de);

      static void registerInstance(DtDe& de, DtOsgAdapterQtWidgetCreator* creator);     

      virtual DtOsgAdapterQtWidget* create( DtDe& de, 
         osg::GraphicsContext::Traits* contextTraits, const QGLFormat& format,  
         QWidget * parent = 0, Qt::WindowFlags f = 0);
   };
                                    
}