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     @Override
  39     public void render(Graphics2D g2d) {
  40
  41         AffineTransform ot = null;
  42         AffineTransform t = getTransform();
  43         if (t != null && !t.isIdentity()) {
  44             ot = g2d.getTransform();
  45             g2d.transform(getTransform());
  46         }
  47
  48         Object aaHint = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
  49         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  50
  51         Color oldColor = g2d.getColor();
  52         BasicStroke oldStroke = (BasicStroke) g2d.getStroke();
  53 //        boolean selected = isSelected();
  54 //        if (selected) {
  55 //            Path2D selectionPath = edge.getPath();
  56 //            Shape selectionShape = SELECTION_STROKE.createStrokedShape(selectionPath);
  57 //            g2d.setColor(SELECTION_COLOR);
  58 //            g2d.fill(selectionShape);
  59 //        }
  60 //
  61         g2d.setColor(color);
  62         if (STROKE != null) {
  63             if (scaleStroke && STROKE instanceof BasicStroke) {
  64                 BasicStroke bs = GeometryUtils.scaleStroke(STROKE, (float) (1.0 / GeometryUtils.getScale(g2d.getTransform())));
  65                 g2d.setStroke(bs);
  66             } else {
  67                 g2d.setStroke(STROKE);
  68             }
  69         }
  70
  71         g2d.draw(calculatePath(edge));
  72
  73         // Reset
  74         g2d.setStroke(oldStroke);
  75         g2d.setColor(oldColor);
  76         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, aaHint);
  77
  78         if (ot != null)
  79             g2d.setTransform(ot);
  80     }
  81
  82     public static Path2D calculatePath(DistrictNetworkEdge edge) {
  83         // Convert to screen coordinates
  84         double startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
  85         double startY = ModelledCRS.latitudeToY(edge.getStartPoint().getY());
  86         double endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
  87         double endY = ModelledCRS.latitudeToY(edge.getEndPoint().getY());
  88
  89         // render
  90         Path2D path = new Path2D.Double();
  91         path.moveTo(startX, startY);
  92         path.lineTo(endX, endY);
  93         return path;
  94     }
  95
  96     private boolean isSelected() {
  97         return NodeUtil.isSelected(this, 1);
  98     }
  99
 100     @Override
 101     public Rectangle2D getBoundsInLocal() {
 102         return bounds;
 103     }
 104
 105     private void updateBounds() {
 106         Rectangle2D oldBounds = bounds;
 107         if (oldBounds == null)
 108             oldBounds = new Rectangle2D.Double();
 109         bounds = calculateBounds(oldBounds);
 110     }
 111
 112     private Rectangle2D calculateBounds(Rectangle2D rect) {
 113         return calculatePath(edge).getBounds2D();
 114     }
 115
 116     public void setDNEdge(DistrictNetworkEdge edge) {
 117         this.edge = edge;
 118         updateBounds();
 119     }
 120
 121     public void setColor(Color color) {
 122         this.color = color;
 123     }
 124
 125     public Color getColor() {
 126         return color;
 127     }
 128
 129 }