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.Point2D;
  11 import java.awt.geom.Rectangle2D;
  12
  13 import org.simantics.district.network.ModelledCRS;
  14 import org.simantics.district.network.ui.DistrictNetworkEdge;
  15 import org.simantics.scenegraph.g2d.G2DNode;
  16 import org.simantics.scenegraph.utils.GeometryUtils;
  17 import org.simantics.scenegraph.utils.NodeUtil;
  18
  19 public class DistrictNetworkEdgeNode extends G2DNode {
  20
  21     private static final long serialVersionUID = 8049769475036519806L;
  22
  23     private static final Stroke     SELECTION_STROKE = new BasicStroke(1f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER);
  24     private static final Color      SELECTION_COLOR  = new Color(255, 0, 255, 96);
  25
  26     private DistrictNetworkEdge edge;
  27     private Rectangle2D bounds;
  28
  29     private static final Stroke STROKE = new BasicStroke(4, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
  30     private boolean scaleStroke = true;
  31
  32     private Color color;
  33
  34     private Double stroke;
  35
  36     @Override
  37     public void init() {
  38     }
  39
  40     @Override
  41     public void render(Graphics2D g2d) {
  42
  43         AffineTransform ot = null;
  44         AffineTransform t = getTransform();
  45         if (t != null && !t.isIdentity()) {
  46             ot = g2d.getTransform();
  47             g2d.transform(getTransform());
  48         }
  49
  50         Object aaHint = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
  51         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  52
  53         Color oldColor = g2d.getColor();
  54         BasicStroke oldStroke = (BasicStroke) g2d.getStroke();
  55 //        boolean selected = isSelected();
  56 //        if (selected) {
  57 //            Path2D selectionPath = edge.getPath();
  58 //            Shape selectionShape = SELECTION_STROKE.createStrokedShape(selectionPath);
  59 //            g2d.setColor(SELECTION_COLOR);
  60 //            g2d.fill(selectionShape);
  61 //        }
  62 //
  63         g2d.setColor(color);
  64         if (STROKE != null) {
  65             if (scaleStroke && STROKE instanceof BasicStroke) {
  66                 double str;
  67                 if (stroke != null)
  68                     str = Math.abs(stroke);
  69                 else
  70                     str = 1.0;
  71                 BasicStroke bs = GeometryUtils.scaleStroke(STROKE, (float) (str / GeometryUtils.getScale(g2d.getTransform())));
  72                 g2d.setStroke(bs);
  73             } else {
  74                 g2d.setStroke(STROKE);
  75             }
  76         }
  77
  78         g2d.draw(calculatePath(edge));
  79
  80         // Reset
  81         g2d.setStroke(oldStroke);
  82         g2d.setColor(oldColor);
  83         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, aaHint);
  84
  85         if (ot != null)
  86             g2d.setTransform(ot);
  87     }
  88
  89     public static Path2D calculatePath(DistrictNetworkEdge edge) {
  90         // Convert to screen coordinates
  91         double startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
  92         double startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY()); // Invert for Simantics
  93         double endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
  94         double endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());// Invert for Simantics
  95
  96         // render
  97         Path2D path = new Path2D.Double();
  98         path.moveTo(startX, startY);
  99         path.lineTo(endX, endY);
 100         return path;
 101     }
 102
 103     private boolean isSelected() {
 104         return NodeUtil.isSelected(this, 1);
 105     }
 106
 107     @Override
 108     public Rectangle2D getBoundsInLocal() {
 109         return bounds;
 110     }
 111
 112     private void updateBounds() {
 113         Rectangle2D oldBounds = bounds;
 114         if (oldBounds == null)
 115             oldBounds = new Rectangle2D.Double();
 116         bounds = calculateBounds(oldBounds);
 117     }
 118
 119     private Rectangle2D calculateBounds(Rectangle2D rect) {
 120         return calculatePath(edge).getBounds2D();
 121     }
 122
 123     public void setDNEdge(DistrictNetworkEdge edge) {
 124         this.edge = edge;
 125         updateBounds();
 126     }
 127
 128     public void setColor(Color color) {
 129         this.color = color;
 130     }
 131
 132     public Color getColor() {
 133         return color;
 134     }
 135
 136     @PropertySetter(value = "stroke")
 137     public void setStroke(Double stroke) {
 138         this.stroke = stroke / 100;
 139     }
 140
 141 }