/**
**
** @RDE_HEADER@
** Implementation of base class for rubberband handles
** $Id$
** $HeadURL$
** $Author$
**
** -----------------------------------------------------------------------------------------------
**
** 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 .........:
**
**   27.03.2015, JT  : First edition for use with Qt5
**
** -----------------------------------------------------------------------------------------------
*/

#include "rubberband_drawable.h"


// ESRI
#include <arcgis/Map.h>



namespace SituationMap { namespace RB
{

   Esri::ArcGISRuntime::Point convert(const QPointF &point, const Esri::ArcGISRuntime::SpatialReference& spatialReference)
   {
      return Esri::ArcGISRuntime::Point(point.x(), point.y(), spatialReference);
   } // convert


   RubberbandDrawable::RubberbandDrawable( QGraphicsView * view )
     : _scene((view) ? view->scene() : nullptr)
     , _mapView()
     , _isVisible(true)
     , _lineWidth(1)
     , _zBufferValue((unsigned int) ZBufferPlane::Drawables)
     , _logger(getLogger("RubberbandDrawable"))
     
   {
     doConnecting();
   } /* RubberbandDrawable::RubberbandDrawable */

   RubberbandDrawable::RubberbandDrawable( Esri::ArcGISRuntime::MapGraphicsView * mapView )
      : _scene(mapView->scene())
      , _mapView(mapView)
      , _isVisible(true)
      , _lineWidth(1)
      , _zBufferValue((unsigned int) ZBufferPlane::Drawables)
      , _logger(getLogger("RubberbandDrawable"))
      
   {
      doConnecting();
   } /* RubberbandDrawable::RubberbandDrawable */

   RubberbandDrawable::RubberbandDrawable( Esri::ArcGISRuntime::MapGraphicsView * mapView, QGraphicsScene * scene)
      : _scene(scene)
      , _mapView(mapView)
      , _isVisible(true)
      , _lineWidth(1)
      , _zBufferValue((unsigned int) ZBufferPlane::Drawables)
      , _logger(getLogger("RubberbandDrawable"))
      
   {
      doConnecting();
   } /* RubberbandDrawable::RubberbandDrawable */


#ifdef ADJUST_COORDINATES_EVERY_PAINT_EVENT
   bool RubberbandDrawable::eventFilter( QObject*, QEvent * e )
   {
      if (e)
      {
         if (e->type() == QEvent::Paint)
         {
           /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
            * Sometimes the signals extentChanges and rectChanged of Esri Map Widget are not emitted. In this case
            * the position update of handles and drawabled fails and they are drawn at wrong positions on map. As
            * workaround updates coordinates at every paint event.
            * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
            DEBUG_LOG(_logger) << LOGFUNCTION << " paint event";
            onDo_adjustCoordinates();
         }
      }
      return false;
   } /* RubberbandDrawable::eventFilter */
#endif

   void RubberbandDrawable::doConnecting()
   {
      if (nullptr == _mapView) return;

      #ifdef ADJUST_COORDINATES_EVERY_PAINT_EVENT
         _view -> installEventFilter( this );
      #endif
 
      /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       * It is really important to specify the connnection type as following. Because the onDo_adjustCoordinates
       * should be call as soon as possible to get smooth changes of map. The connection type is DirectConnnection here.
       * The rectChanged signal is some times emitted, when the calculation of screen coordinates to map coordinates
       * and vice versa has not been updated to the new map window size. In this case all calculations provides wrong
       * results. Using the connection type QueuedConnection defers the call of onDo_adjustWindow.
       * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
      // Check Quartz
      connect( _mapView.data(), &Esri::ArcGISRuntime::MapGraphicsView::viewpointChanged,
               this, &RubberbandDrawable::onDo_adjustCoordinates, Qt::ConnectionType::DirectConnection );
      connect( _mapView.data(), &Esri::ArcGISRuntime::MapGraphicsView::rectChanged  ,
               this, &RubberbandDrawable::onDo_adjustWindow     , Qt::ConnectionType::QueuedConnection );

   } /* RubberbandDrawable::doConnecting */


   void RubberbandDrawable::onDo_adjustCoordinates()
   {
     adjustCoordinates();
     forceUpdateViewWidget();
   } /* RubberbandDrawable::onDo_adjustCoordinates */


   void RubberbandDrawable::onDo_adjustWindow( const QRectF &r )
   {
     adjustWindow(r);
     forceUpdateViewWidget();
   } /* RubberbandDrawable::onDo_adjustWindow */


   void RubberbandDrawable::makeLineStyle( bool dottedLine, QPen & lineStyle )
   {
      lineStyle.setColor( _drawColor      );
      lineStyle.setWidth( int(_lineWidth) );

      if (dottedLine) lineStyle.setStyle( Qt::DashDotLine );
      else lineStyle.setStyle( Qt::SolidLine );
   } /* DrawablePainterPathItem::makeLineStyle */


   RubberbandDrawable::~RubberbandDrawable() { if (_mapView) _mapView->removeEventFilter(this); }


} } /* namespace SituationMap::RB */