Initial commit

Lts/Viewer/SituationMap/Rubberbands/drawable_ellipse.cpp

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+
+/**
+**
+** @RDE_HEADER@
+** Definition of ellipse drawable
+** $Id$
+** $HeadURL$
+** $Author$
+*/
+
+#include "drawable_ellipse.h"
+
+#include <MathUtils/math_const.h>
+#include <QtWidgets/QGraphicsEllipseItem>
+
+
+namespace SituationMap { namespace RB
+{
+
+   DrawableEllipse::DrawableEllipse(Esri::ArcGISRuntime::MapGraphicsView * map) : DrawableEllipse(map,map->scene()) {;}
+
+
+   DrawableEllipse::DrawableEllipse(Esri::ArcGISRuntime::MapGraphicsView * map, QGraphicsScene * scene)
+      : RubberbandDrawable(map, scene)
+      , _elliItem(nullptr)
+      , _center()
+      , _radiusX(0)
+      , _radiusY(0)
+      , _elliStyle()
+      , _sinRect(0)
+      , _cosRect(1)
+      , _sectorStart()
+      , _sectorEnd()
+   {
+      _elliItem  = new QGraphicsEllipseItem();
+      _scene -> addItem( _elliItem );
+      makeLineStyle( false, _elliStyle );
+      _elliItem -> setPen( _elliStyle );
+
+      _sectItem  = new QGraphicsEllipseItem();
+      _scene -> addItem( _sectItem );
+      makeLineStyle( false, _elliStyle );
+      _sectItem -> setPen( _elliStyle );
+   } /* DrawableLine::DrawableLine */
+
+
+   DrawableEllipse::~DrawableEllipse()
+   {
+      if (_scene)
+      {
+        if (_elliItem) _scene->removeItem(_elliItem);
+        if (_sectItem) _scene->removeItem(_sectItem);
+        delete _elliItem;
+        delete _sectItem;
+      }
+      _elliItem = nullptr;
+      _sectItem = nullptr;
+   } /*  DrawableEllipse::~DrawableEllipse */
+
+
+   void  DrawableEllipse::updateGraphic()
+   {
+      auto length = []( const QPointF & p ) -> qreal { return sqrt(p.x()*p.x()+p.y()*p.y()); };
+
+      qreal mapRotatePhi = _mapView->mapRotation() * MathConst::pi / 180.0;
+
+      qreal sinMap = sin(mapRotatePhi);
+      qreal cosMap = cos(mapRotatePhi);
+
+      qreal sinPhi = _sinRect * cosMap + _cosRect * sinMap;
+      qreal cosPhi = _cosRect * cosMap - _sinRect * sinMap;
+
+      _center.mapToScene(_mapView);
+
+      QPointF mapCenter( _center._mapCoordinate.x(), _center._mapCoordinate.y() );
+
+      RubberbandCoordinate x0y0(_mapView, convert( mapCenter+QPointF(-_radiusX,-_radiusY), _mapView->map()->spatialReference()) );
+      RubberbandCoordinate x1y0(_mapView, convert( mapCenter+QPointF( _radiusX,-_radiusY), _mapView->map()->spatialReference()) );
+      RubberbandCoordinate x0y1(_mapView, convert( mapCenter+QPointF(-_radiusX, _radiusY), _mapView->map()->spatialReference()) );
+
+      qreal width  = length(x1y0._sceneCoordinate-x0y0._sceneCoordinate);
+      qreal height = length(x0y1._sceneCoordinate-x0y0._sceneCoordinate);
+
+      makeLineStyle( false, _elliStyle );
+
+      QColor fillColor = transparentFillColor();
+      //fillColor.setAlpha(0);
+
+      QPen pen(_drawColor);
+      pen.setWidth(_lineWidth);
+
+      if (_sectorStart != _sectorEnd)
+      {
+         auto getAngle = [](qreal sinPhi, qreal cosPhi) -> int
+         {
+           qreal phi = acos( cosPhi );
+           if (sinPhi < 0) phi = MathConst::pi_two - phi;
+           return int( (phi * 180.0 / MathConst::pi) * 16);
+         }; // getAngle
+
+         int startAngle = getAngle(_sectorStart.y(), _sectorStart.x());
+         int endAngle   = getAngle(  _sectorEnd.y(),   _sectorEnd.x());
+         int spanAngle  = (endAngle > startAngle) ? endAngle-startAngle : 5760-startAngle+endAngle;
+
+         _sectItem -> setRect( -width*0.5, -height*0.5, width, height );
+         _sectItem -> setPen( pen );
+         _sectItem -> setBrush( (fillColor.alpha() > 0) ? QBrush(fillColor) : QBrush() );
+         _sectItem -> setTransform( QTransform( cosPhi, -sinPhi, sinPhi, cosPhi, _center._sceneCoordinate.x(), _center._sceneCoordinate.y() ));
+         _sectItem -> setStartAngle( startAngle );
+         _sectItem -> setSpanAngle( spanAngle );
+         _sectItem -> setVisible( true );
+
+         fillColor.setAlphaF(fillColor.alphaF() * 0.5 );
+      }
+      else _sectItem -> setVisible( false );
+
+      _elliItem -> setRect( -width*0.5, -height*0.5, width, height );
+      _elliItem -> setPen(pen);
+      _elliItem -> setBrush( (fillColor.alpha() > 0) ? QBrush(fillColor) : QBrush() );
+      _elliItem -> setTransform( QTransform( cosPhi, -sinPhi, sinPhi, cosPhi, _center._sceneCoordinate.x(), _center._sceneCoordinate.y() ));
+
+   } /* DrawableEllipse::updateGraphic */
+
+   void DrawableEllipse::adjustCoordinates()            { updateGraphic(); }
+   void DrawableEllipse::adjustWindow( const QRectF& )  { updateGraphic(); }
+
+} } /* namespace SituationMap::RB */