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     @Override
  35     public void init() {
  36
  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                 BasicStroke bs = GeometryUtils.scaleStroke(STROKE, (float) (1.0 / GeometryUtils.getScale(g2d.getTransform())));
  66                 g2d.setStroke(bs);
  67             } else {
  68                 g2d.setStroke(STROKE);
  69             }
  70         }
  71
  72         g2d.draw(calculatePath(edge));
  73
  74         // Reset
  75         g2d.setStroke(oldStroke);
  76         g2d.setColor(oldColor);
  77         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, aaHint);
  78
  79         if (ot != null)
  80             g2d.setTransform(ot);
  81     }
  82
  83     public static Path2D calculatePath(DistrictNetworkEdge edge) {
  84         // Convert to screen coordinates
  85         double startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
  86         double startY = ModelledCRS.latitudeToY(edge.getStartPoint().getY());
  87         double endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
  88         double endY = ModelledCRS.latitudeToY(edge.getEndPoint().getY());
  89
  90         // render
  91         Path2D path = new Path2D.Double();
  92         path.moveTo(startX, startY);
  93         path.lineTo(endX, endY);
  94         return path;
  95     }
  96
  97     private boolean isSelected() {
  98         return NodeUtil.isSelected(this, 1);
  99     }
 100
 101     @Override
 102     public Rectangle2D getBoundsInLocal() {
 103         return bounds;
 104     }
 105
 106     private void updateBounds() {
 107         Rectangle2D oldBounds = bounds;
 108         if (oldBounds == null)
 109             oldBounds = new Rectangle2D.Double();
 110         bounds = calculateBounds(oldBounds);
 111     }
 112
 113     private Rectangle2D calculateBounds(Rectangle2D rect) {
 114         return calculatePath(edge).getBounds2D();
 115     }
 116
 117     public void setDNEdge(DistrictNetworkEdge edge) {
 118         this.edge = edge;
 119         updateBounds();
 120     }
 121
 122     public void setColor(Color color) {
 123         this.color = color;
 124     }
 125
 126     public Color getColor() {
 127         return color;
 128     }
 129
 130 }