dragComponent.h

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/******************************************************************************
** Copyright (c) 1992-2010 VT MAK
** All rights reserved.
******************************************************************************/


#ifndef dragComponent_H_
#define dragComponent_H_

#include "lgrGui.h"
#include <QtCore/QPoint>

class QMouseEvent;

namespace MAKLogger
{

   class DT_DLL_LGRGUI DtDragComponent
   {
   public:

      DtDragComponent();

      virtual ~DtDragComponent();

      void registerMousePress(const QMouseEvent& e);

      void registerMouseRelease(const QMouseEvent& e);

      void registerMouseMove(const QMouseEvent& e);

      QPoint absolutePosition() const;

      QPoint relativePosition() const;

      QPoint relativeVelocity() const;

      bool currentlyDragging() const;

   protected:
      QPoint myFirstPosition;
      QPoint myLastPosition;
      QPoint myCurrentPosition;

      bool myDownFlag;
   };

}

#endif