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.Line2D;
  10 import java.awt.geom.Path2D;
  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.ISelectionPainterNode;
  16 import org.simantics.scenegraph.g2d.G2DNode;
  17 import org.simantics.scenegraph.utils.GeometryUtils;
  18 import org.simantics.scenegraph.utils.NodeUtil;
  19
  20 public class DistrictNetworkEdgeNode extends G2DNode implements ISelectionPainterNode {
  21
  22     private static final long serialVersionUID = 8049769475036519806L;
  23
  24     private static final Stroke     SELECTION_STROKE = new BasicStroke(1f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER);
  25     private static final Color      SELECTION_COLOR  = new Color(255, 0, 255, 96);
  26
  27     private DistrictNetworkEdge edge;
  28     private Rectangle2D bounds;
  29     private Line2D path;
  30
  31     private static final BasicStroke STROKE = new BasicStroke(4, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
  32     private boolean scaleStroke = true;
  33
  34     private Color color;
  35
  36     private Double stroke;
  37
  38     @Override
  39     public void init() {
  40     }
  41
  42     @Override
  43     public void render(Graphics2D g2d) {
  44         AffineTransform ot = null;
  45         AffineTransform t = getTransform();
  46         if (t != null && !t.isIdentity()) {
  47             ot = g2d.getTransform();
  48             g2d.transform(getTransform());
  49         }
  50
  51         Object aaHint = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
  52         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  53
  54         Color oldColor = g2d.getColor();
  55         BasicStroke oldStroke = (BasicStroke) g2d.getStroke();
  56
  57         g2d.setColor(color);
  58         BasicStroke bs = null;
  59         if (scaleStroke) {
  60             double scale = GeometryUtils.getScale(g2d.getTransform());
  61             scale = Math.max(10000, Math.min(scale, 50000));
  62             double str = stroke != null ? Math.abs(stroke) : 1.0;
  63             bs = GeometryUtils.scaleStroke(STROKE, (float) (str / scale));
  64         } else {
  65             bs = STROKE;
  66         }
  67
  68         path = calculateLine(edge, path);
  69
  70         if (isSelected()) {
  71             g2d.setColor(SELECTION_COLOR);
  72             g2d.setStroke(GeometryUtils.scaleStroke(bs, 4f));
  73             g2d.draw(path);
  74         }
  75
  76         g2d.setStroke(bs);
  77         g2d.draw(path);
  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 Line2D calculateLine(DistrictNetworkEdge edge, Line2D result) {
  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         if (result == null)
  96             result = new Line2D.Double();
  97         result.setLine(startX, startY, endX, endY);
  98         return result;
  99     }
 100
 101     public static Path2D calculatePath(DistrictNetworkEdge edge, Path2D result) {
 102         // Convert to screen coordinates
 103         double startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
 104         double startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY()); // Invert for Simantics
 105         double endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
 106         double endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());// Invert for Simantics
 107
 108         if (result == null) {
 109              result = new Path2D.Double();
 110         } else {
 111              result.reset();
 112         }
 113         result.moveTo(startX, startY);
 114         result.lineTo(endX, endY);
 115         return result;
 116     }
 117
 118     private boolean isSelected() {
 119         return NodeUtil.isSelected(this, 1);
 120     }
 121
 122     @Override
 123     public Rectangle2D getBoundsInLocal() {
 124         return bounds;
 125     }
 126
 127     private void updateBounds() {
 128         Rectangle2D oldBounds = bounds;
 129         if (oldBounds == null)
 130             oldBounds = new Rectangle2D.Double();
 131         bounds = calculateBounds(oldBounds);
 132     }
 133
 134     private Rectangle2D calculateBounds(Rectangle2D rect) {
 135         return calculatePath(edge, null).getBounds2D();
 136     }
 137
 138     public void setDNEdge(DistrictNetworkEdge edge) {
 139         this.edge = edge;
 140         updateBounds();
 141     }
 142
 143     public void setColor(Color color) {
 144         this.color = color;
 145     }
 146
 147     public Color getColor() {
 148         return color;
 149     }
 150
 151     @PropertySetter(value = "stroke")
 152     public void setStroke(Double stroke) {
 153         this.stroke = stroke;
 154     }
 155
 156 }