/**
**
** @RDE_HEADER@
** Implementation of rubberband class to define moving 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 .........:
**
**   07.04.2015, JT  : First edition for use with Qt5
**
** -----------------------------------------------------------------------------------------------
*/

#include "rubberband_transform.h"

#include "rubberband_internal.h"

#include <MathUtils/math_const.h>


namespace SituationMap { namespace RB
{

   struct RubberbandTransform::InternalData
   {
         Q_DISABLE_COPY(InternalData)
         MathUtils::Matrix2D  _transformCoordinates;
         LOGGER_T             _logger;

         InternalData()
           : _transformCoordinates()
           , _logger(getLogger("RubberbandTransform"))
         {
         } /* InternalData */
   }; /* RubberbandTransform::InternalData */




   RubberbandTransform::RubberbandTransform( SituationMap::Map * map, QObject * parent )
     : RubberbandRectangle(map,parent)
     , _internal(new InternalData())
   {
   } /* RubberbandTransform::RubberbandTransform */


   RubberbandTransform::~RubberbandTransform()
   {
     delete _internal;
     _internal = nullptr;
   } /* RubberbandTransform::~RubberbandTransform */


   const MathUtils::Matrix2D & RubberbandTransform::transformMatrix() const { return _internal->_transformCoordinates; }


   void RubberbandTransform::update()
   {
     /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      * It is importent here to call RubberbandRectangle::update(); first to do an update, because
      * in other case the RubberbandRectangle::_lastCoordinateChange variable will have wrong values.
      * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
      RubberbandRectangle::update();

      if (!_lastCoordinateChange.isIdentity())
      {
         _internal->_transformCoordinates = _lastCoordinateChange * _internal->_transformCoordinates;
      }
      
      emit updatePreview( this, _lastCoordinateChange );
      
      _lastCoordinateChange.setToIdentity();              // reset matrix

   } /* RubberbandTransform::update */

} } /* namespace SituationMap::RB */