QtExaminerViewer.hh

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//=============================================================================
//
//  CLASS QtExaminerViewer
//
//=============================================================================

#ifndef ACG_QTEXAMINERVIEWER_HH
#define ACG_QTEXAMINERVIEWER_HH


//== INCLUDES =================================================================


#include "QtBaseViewer.hh"

#include <QElapsedTimer>
#include <QTime>
#include <QMouseEvent>
#include <QWheelEvent>
#include <QKeyEvent>


//== NAMESPACES ===============================================================


namespace ACG {
namespace QtWidgets {
  

//== FORWARDDECLARATIONS ======================================================


class QWheel; 
class QtQGLWidget_Internal;
class QtSceneGraphWidget;


//== CLASS DEFINITION =========================================================


class ACGDLLEXPORT QtExaminerViewer : public QtBaseViewer
{
Q_OBJECT

public:


  QtExaminerViewer( QWidget* _parent=0, 
                    const char* _name=0, 
                    QStatusBar *_statusBar=0, 
                    const QGLFormat* _format=0,
                    const QtBaseViewer* _share=0,
                    Options _options=DefaultOptions );
 
  // Destructor.
  virtual ~QtExaminerViewer() {}


  void allowRotation( bool _mode ) { allowRotation_ = _mode; };


public:
  double wheelZoomFactor();
  double wheelZoomFactorShift();
  void setWheelZoomFactor(double _factor);
  void setWheelZoomFactorShift(double _factor);
private:
  double wZoomFactor_;
  double wZoomFactorShift_;


private slots:

  void slotAnimation();


protected:

  virtual bool viewKeyPressEvent(QKeyEvent* /* _event */ ) override { return false; }
  virtual void viewWheelEvent(QWheelEvent* _event) override;
  virtual void viewMouseEvent(QMouseEvent* _event) override;
  virtual void lightMouseEvent(QMouseEvent* _event) override;


protected:

  // mouse interaction
  QPoint   lastPoint2D_;


private:

  bool mapToSphere(const QPoint& _p, Vec3d& _result) const;


  // mouse interaction
  Vec3d    lastPoint3D_;
  bool     lastPoint_hitSphere_;
  bool     allowRotation_;


  // animation stuff
  Vec3d                        lastRotationAxis_;
  double                       lastRotationAngle_;
  QElapsedTimer                lastMoveTime_;
  QTimer*                      timer_;
};


//=============================================================================
} // namespace QtWidgets
} // namespace ACG
//=============================================================================
#endif // ACG_QTEXAMINERWIDGET_HH defined
//=============================================================================