Initial commit

Lts/Viewer/SituationMap/Rubberbands/drawable_smooth_path.cpp

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+
+/**
+**
+** @RDE_HEADER@
+** Implementation of line drawables
+** $Id$
+** $HeadURL$
+** $Author$
+**
+** -----------------------------------------------------------------------------------------------
+**
+** 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 .........:
+**
+**   06.08.2015, JT  : First edition for use with Qt5
+**
+** -----------------------------------------------------------------------------------------------
+*/
+
+#include "drawable_smooth_path.h"
+
+#include <QPainterPath>
+#include <QGraphicsPathItem>
+
+#include <MathUtils/curve.h>
+#include <MathUtils/path_rasterer.h>
+
+
+namespace SituationMap { namespace RB
+{
+
+   DrawableSmoothPath::DrawableSmoothPath(Esri::ArcGISRuntime::MapGraphicsView * map)
+      : DrawablePainterPath(map)
+      , _smoothLine( new SituationMap::MathUtils::SmoothLine() )
+   {
+      _pathRasterer = _smoothLine->createPathRaster();
+   } /* DrawableSmoothPath::DrawableLine */
+
+
+   DrawableSmoothPath::DrawableSmoothPath(Esri::ArcGISRuntime::MapGraphicsView * map, QGraphicsScene * scene)
+      : DrawablePainterPath(map, scene)
+      , _smoothLine( new SituationMap::MathUtils::SmoothLine() )
+   {
+      _pathRasterer = _smoothLine->createPathRaster();
+   } /* DrawableSmoothLine::DrawableLine */
+
+
+   DrawableSmoothPath::~DrawableSmoothPath()
+   {
+      delete _pathRasterer;
+      delete _smoothLine;
+      _pathRasterer = nullptr;
+      _smoothLine   = nullptr;
+   } /* DrawableSmoothPath::~DrawableSmoothPath */
+
+
+   void DrawableSmoothPath::setPath( const QVector<RubberbandDrawable::RubberbandCoordinate> & vertexVector )
+   {
+     _pathCoordinates = vertexVector;
+      updateGraphic();
+   } /* DrawableSmoothPath::setPath */
+
+
+   void  DrawableSmoothPath::updateGraphic()
+   {
+      if (_pathCoordinates.size() > 2)
+      {
+         makeLineStyle( _dottedPath, _lineStyle );
+
+         _painterPathItem -> setPen( _lineStyle );
+         _painterPathItem -> setVisible( _isVisible );
+
+         if (_closedLine)
+         {
+         const QColor &fillColor = transparentFillColor();
+            _painterPathItem -> setBrush( (fillColor.alpha() > 0) ? QBrush(fillColor) : QBrush() );
+         }
+         else _painterPathItem -> setBrush( QBrush() );
+
+         QVector<QPointF>  vertexVector;
+         vertexVector.reserve( _pathCoordinates.size() );
+
+         for (auto vertex : qAsConst(_pathCoordinates))
+         {
+            vertex.mapToScene(_mapView);
+            vertexVector.append( vertex._sceneCoordinate );
+         }
+
+         _smoothLine   -> vertexVector( vertexVector, _closedLine );
+         _pathRasterer -> epsilon( 2 );
+         _pathRasterer -> maxVertexCount( 1000 );
+         _pathRasterer -> rasterize(  _smoothLine->minimumCurveParameter(), _smoothLine->maximumCurveParameter(), vertexVector );
+
+         QPainterPath path;
+
+         if (vertexVector.size() > 1)
+         {
+            QVector<QPointF>::const_iterator vit = vertexVector.constBegin();
+
+            path.moveTo( *vit );
+            for (++vit; vit != vertexVector.end(); ++vit)
+            {
+               path.lineTo( *vit );
+            }
+            if (_closedLine)  path.lineTo( QPointF(path.elementAt(0)) );
+         }
+         _painterPathItem->setPath(path);
+      }
+      else _painterPathItem ->setVisible(false);
+
+   } /* DrawableSmoothPath::updateGraphic */
+
+
+   void DrawableSmoothPath::adjustCoordinates()            { updateGraphic(); }
+   void DrawableSmoothPath::adjustWindow( const QRectF& )  { updateGraphic(); }
+
+} } /* namespace SituationMap::RB */