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.Rectangle2D;
  10
  11 import org.simantics.district.network.ui.DistrictNetworkEdge;
  12 import org.simantics.scenegraph.g2d.G2DNode;
  13 import org.simantics.scenegraph.utils.GeometryUtils;
  14 import org.simantics.scenegraph.utils.NodeUtil;
  15
  16 public class DistrictNetworkEdgeNode extends G2DNode {
  17
  18     private static final long serialVersionUID = 8049769475036519806L;
  19
  20     private static final Stroke     SELECTION_STROKE = new BasicStroke(1f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER);
  21     private static final Color      SELECTION_COLOR  = new Color(255, 0, 255, 96);
  22
  23     private DistrictNetworkEdge edge;
  24     private Rectangle2D bounds;
  25
  26     private static final Stroke STROKE = new BasicStroke(4, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
  27     private boolean scaleStroke = true;
  28
  29     private Color color;
  30
  31     @Override
  32     public void init() {
  33
  34     }
  35
  36     @Override
  37     public void render(Graphics2D g2d) {
  38
  39         AffineTransform ot = null;
  40         AffineTransform t = getTransform();
  41         if (t != null && !t.isIdentity()) {
  42             ot = g2d.getTransform();
  43             g2d.transform(getTransform());
  44         }
  45
  46         Object aaHint = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
  47         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  48
  49         Color oldColor = g2d.getColor();
  50         BasicStroke oldStroke = (BasicStroke) g2d.getStroke();
  51 //        boolean selected = isSelected();
  52 //        if (selected) {
  53 //            Path2D selectionPath = edge.getPath();
  54 //            Shape selectionShape = SELECTION_STROKE.createStrokedShape(selectionPath);
  55 //            g2d.setColor(SELECTION_COLOR);
  56 //            g2d.fill(selectionShape);
  57 //        }
  58 //
  59         g2d.setColor(color);
  60         if (STROKE != null) {
  61             if (scaleStroke && STROKE instanceof BasicStroke) {
  62                 BasicStroke bs = GeometryUtils.scaleStroke(STROKE, (float) (1.0 / GeometryUtils.getScale(g2d.getTransform())));
  63                 g2d.setStroke(bs);
  64             } else {
  65                 g2d.setStroke(STROKE);
  66             }
  67         }
  68         // render
  69         g2d.draw(edge.getPath());
  70
  71         // Reset
  72         g2d.setStroke(oldStroke);
  73         g2d.setColor(oldColor);
  74         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, aaHint);
  75
  76         if (ot != null)
  77             g2d.setTransform(ot);
  78     }
  79
  80     private boolean isSelected() {
  81         return NodeUtil.isSelected(this, 1);
  82     }
  83
  84     @Override
  85     public Rectangle2D getBoundsInLocal() {
  86         return bounds;
  87     }
  88
  89     private void updateBounds() {
  90         Rectangle2D oldBounds = bounds;
  91         if (oldBounds == null)
  92             oldBounds = new Rectangle2D.Double();
  93         bounds = calculateBounds(oldBounds);
  94     }
  95
  96     private Rectangle2D calculateBounds(Rectangle2D rect) {
  97         return edge.getBounds(rect);
  98     }
  99
 100     public void setDNEdge(DistrictNetworkEdge edge) {
 101         this.edge = edge;
 102         updateBounds();
 103     }
 104
 105     public void setColor(Color color) {
 106         this.color = color;
 107     }
 108
 109     public Color getColor() {
 110         return color;
 111     }
 112
 113 }