/**
**
** @RDE_HEADER@
** Definition of rubberband class to define moving, scale and rotating transforms
** $Id$
** $HeadURL$
** $Author$
**
** -----------------------------------------------------------------------------------------------
**
** Hardware-Environment: Intel-PC
** Software-Environment: Windows 7, Qt 5.4. ArcGIS 10.2.5
**
** Language ........: C++ 11
**
** -----------------------------------------------------------------------------------------------
**
** Author ...........: Jörg Turla, SPD G, Tel. 3132
**
** -----------------------------------------------------------------------------------------------
**
** Notes .........:
**
**   22.06.2016, JT  : First edition for use with Qt5
**
** -----------------------------------------------------------------------------------------------
*/

#pragma once

#include "rubberband_rectangle.h"

namespace SituationMap { namespace RB
{

   /**
     @class RubberbandTransform rubberband_transform.h
     @brief Implementation of a rubberband to move, scale and rotate features
     @see Rubberband
   */
   class SITUATIONMAP_EXPORT RubberbandTransform : public RubberbandRectangle
   {
      Q_OBJECT

         friend class RubberbandFactory;

         friend class RubberbandTransformMove;
         friend class RubberbandTransformRotate;
         friend class RubberbandTransformScale;


         /**
            @name Construction & Destruction
            @}
         */

         explicit RubberbandTransform(  SituationMap::Map * map, QObject * parent = nullptr );

       public:

         ~RubberbandTransform();
         /** @} */

         /**
           Provides the transformation matrix
         */
         const MathUtils::Matrix2D & transformMatrix() const;

      signals:

         /**
           The updatePreview signal is emitted before the rubbberband itself will be redrawn. Connecting this signal can be
           used to draw an preview e.g in case of transform rubberbands.

            @param rbnd  pointer to this Rubberband
            @param mat   transformation matrix to transform features for preview
            @see Rubberband
         */
         void updatePreview( Rubberband * rbnd, const MathUtils::Matrix2D & mat );

      protected:

         /*
            Forward declaration of InternalData to hold private member variables. Becareful the base class Rubberband
            has similary a class for internal data member with name "InternalData". Don't be confused it is not the same.
          */
         struct InternalData;

         InternalData * _internal;

         void update() override;

      private:

        void setButtonPosition();

   }; /* RubberbandTransform */

} } /* namespace SituationMap::RB */