org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkEdgeNode.java

   1 package org.simantics.district.network.ui.nodes;
   2
   3 import java.awt.BasicStroke;
   4 import java.awt.Color;
   5 import java.awt.Graphics2D;
   6 import java.awt.RenderingHints;
   7 import java.awt.Stroke;
   8 import java.awt.geom.AffineTransform;
   9 import java.awt.geom.Path2D;
  10 import java.awt.geom.Rectangle2D;
  11
  12 import org.simantics.district.network.ModelledCRS;
  13 import org.simantics.district.network.ui.DistrictNetworkEdge;
  14 import org.simantics.scenegraph.g2d.G2DNode;
  15 import org.simantics.scenegraph.utils.GeometryUtils;
  16 import org.simantics.scenegraph.utils.NodeUtil;
  17
  18 public class DistrictNetworkEdgeNode extends G2DNode {
  19
  20     private static final long serialVersionUID = 8049769475036519806L;
  21
  22     private static final Stroke     SELECTION_STROKE = new BasicStroke(1f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER);
  23     private static final Color      SELECTION_COLOR  = new Color(255, 0, 255, 96);
  24
  25     private DistrictNetworkEdge edge;
  26     private Rectangle2D bounds;
  27
  28     private static final Stroke STROKE = new BasicStroke(4, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
  29     private boolean scaleStroke = true;
  30
  31     private Color color;
  32
  33     private Double stroke;
  34
  35     @Override
  36     public void init() {
  37     }
  38
  39     @Override
  40     public void render(Graphics2D g2d) {
  41
  42         AffineTransform ot = null;
  43         AffineTransform t = getTransform();
  44         if (t != null && !t.isIdentity()) {
  45             ot = g2d.getTransform();
  46             g2d.transform(getTransform());
  47         }
  48
  49         Object aaHint = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
  50         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  51
  52         Color oldColor = g2d.getColor();
  53         BasicStroke oldStroke = (BasicStroke) g2d.getStroke();
  54 //        boolean selected = isSelected();
  55 //        if (selected) {
  56 //            Path2D selectionPath = edge.getPath();
  57 //            Shape selectionShape = SELECTION_STROKE.createStrokedShape(selectionPath);
  58 //            g2d.setColor(SELECTION_COLOR);
  59 //            g2d.fill(selectionShape);
  60 //        }
  61 //
  62         g2d.setColor(color);
  63         if (STROKE != null) {
  64             if (scaleStroke && STROKE instanceof BasicStroke) {
  65                 double str;
  66                 if (stroke != null)
  67                     str = Math.abs(stroke);
  68                 else
  69                     str = 1.0;
  70                 BasicStroke bs = GeometryUtils.scaleStroke(STROKE, (float) (str / GeometryUtils.getScale(g2d.getTransform())));
  71                 g2d.setStroke(bs);
  72             } else {
  73                 g2d.setStroke(STROKE);
  74             }
  75         }
  76
  77         g2d.draw(calculatePath(edge));
  78
  79         // Reset
  80         g2d.setStroke(oldStroke);
  81         g2d.setColor(oldColor);
  82         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, aaHint);
  83
  84         if (ot != null)
  85             g2d.setTransform(ot);
  86     }
  87
  88     public static Path2D calculatePath(DistrictNetworkEdge edge) {
  89         // Convert to screen coordinates
  90         double startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
  91         double startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY()); // Invert for Simantics
  92         double endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
  93         double endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());// Invert for Simantics
  94
  95         // render
  96         Path2D path = new Path2D.Double();
  97         path.moveTo(startX, startY);
  98         path.lineTo(endX, endY);
  99         return path;
 100     }
 101
 102     private boolean isSelected() {
 103         return NodeUtil.isSelected(this, 1);
 104     }
 105
 106     @Override
 107     public Rectangle2D getBoundsInLocal() {
 108         return bounds;
 109     }
 110
 111     private void updateBounds() {
 112         Rectangle2D oldBounds = bounds;
 113         if (oldBounds == null)
 114             oldBounds = new Rectangle2D.Double();
 115         bounds = calculateBounds(oldBounds);
 116     }
 117
 118     private Rectangle2D calculateBounds(Rectangle2D rect) {
 119         return calculatePath(edge).getBounds2D();
 120     }
 121
 122     public void setDNEdge(DistrictNetworkEdge edge) {
 123         this.edge = edge;
 124         updateBounds();
 125     }
 126
 127     public void setColor(Color color) {
 128         this.color = color;
 129     }
 130
 131     public Color getColor() {
 132         return color;
 133     }
 134
 135     @PropertySetter(value = "stroke")
 136     public void setStroke(Double stroke) {
 137         this.stroke = stroke;
 138     }
 139
 140 }