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.geom.AffineTransform;
   8 import java.awt.geom.Line2D;
   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.INode;
  16 import org.simantics.scenegraph.ISelectionPainterNode;
  17 import org.simantics.scenegraph.g2d.G2DNode;
  18 import org.simantics.scenegraph.g2d.G2DParentNode;
  19 import org.simantics.scenegraph.g2d.nodes.SVGNode;
  20 import org.simantics.scenegraph.utils.GeometryUtils;
  21 import org.simantics.scenegraph.utils.NodeUtil;
  22
  23 public class DistrictNetworkEdgeNode extends G2DParentNode implements ISelectionPainterNode {
  24
  25     private static final long serialVersionUID = 8049769475036519806L;
  26
  27     private static final BasicStroke STROKE           = new BasicStroke(4, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
  28     private static final Color       SELECTION_COLOR  = new Color(255, 0, 255, 96);
  29
  30     private DistrictNetworkEdge edge;
  31     private Rectangle2D bounds;
  32     private transient Line2D path;
  33
  34     private boolean scaleStroke = true;
  35     private Color color;
  36     private Double stroke;
  37     private transient Color dynamicColor = null;
  38
  39     // Dimensions for shut-off valve symbol
  40     private static final double left = -0.25;
  41     private static final double top = -0.25;
  42     private static final double width = 0.5;
  43     private static final double height = 0.5;
  44
  45     private static final Rectangle2D NORMAL = new Rectangle2D.Double(left, top, width, height);
  46
  47     private transient Point2D centerPoint;
  48     private transient Rectangle2D symbolRect;
  49     private transient AffineTransform symbolTransform;
  50
  51     @Override
  52     public void init() {
  53     }
  54
  55     @Override
  56     public void render(Graphics2D g2d) {
  57         AffineTransform ot = null;
  58         AffineTransform t = getTransform();
  59         if (t != null && !t.isIdentity()) {
  60             ot = g2d.getTransform();
  61             g2d.transform(getTransform());
  62         }
  63
  64         Object aaHint = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
  65         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  66
  67         Color oldColor = g2d.getColor();
  68         BasicStroke oldStroke = (BasicStroke) g2d.getStroke();
  69
  70         BasicStroke bs = null;
  71         if (scaleStroke) {
  72             double scale = GeometryUtils.getScale(g2d.getTransform());
  73             scale = Math.max(10000, Math.min(scale, 50000));
  74             double str = stroke != null ? Math.abs(stroke) : 1.0;
  75             bs = GeometryUtils.scaleStroke(STROKE, (float) (str / scale));
  76         } else {
  77             bs = STROKE;
  78         }
  79
  80         path = calculateLine(edge, path);
  81
  82         if (isSelected()) {
  83             g2d.setColor(SELECTION_COLOR);
  84             g2d.setStroke(GeometryUtils.scaleStroke(bs, 4f));
  85             g2d.draw(path);
  86         }
  87
  88         g2d.setColor(dynamicColor != null ? dynamicColor : color);
  89         g2d.setStroke(bs);
  90         g2d.draw(path);
  91
  92         // Reset
  93         g2d.setStroke(oldStroke);
  94         g2d.setColor(oldColor);
  95
  96         // Render SVG symbol
  97         double viewScaleRecip = 10;
  98         if (scaleStroke) {
  99             double scale = GeometryUtils.getScale(g2d.getTransform());
 100             scale = Math.max(10000, Math.min(scale, 50000));
 101             viewScaleRecip /= scale;
 102         }
 103
 104         Point2D p = getCenterPoint();
 105         symbolRect = DistrictNetworkNodeUtils.calculateDrawnGeometry(p, NORMAL, symbolRect, viewScaleRecip);
 106         symbolTransform = DistrictNetworkNodeUtils.getTransformToRectangle(symbolRect, symbolTransform);
 107
 108         for (INode nn : getNodes()) {
 109             G2DNode g2dNode = (G2DNode)nn;
 110             g2dNode.setTransform(symbolTransform);
 111             g2dNode.render(g2d);
 112         }
 113
 114         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, aaHint);
 115
 116         if (ot != null)
 117             g2d.setTransform(ot);
 118     }
 119
 120     private Point2D getCenterPoint() {
 121         if (centerPoint == null)
 122             centerPoint = new Point2D.Double();
 123
 124         Rectangle2D bounds = path.getBounds2D();
 125         centerPoint.setLocation(bounds.getCenterX(), bounds.getCenterY());
 126         return centerPoint;
 127     }
 128
 129     public static Line2D calculateLine(DistrictNetworkEdge edge, Line2D result) {
 130         // Convert to screen coordinates
 131         double startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
 132         double startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY()); // Invert for Simantics
 133         double endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
 134         double endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());// Invert for Simantics
 135
 136         if (result == null)
 137             result = new Line2D.Double();
 138         result.setLine(startX, startY, endX, endY);
 139         return result;
 140     }
 141
 142     public static Path2D calculatePath(DistrictNetworkEdge edge, Path2D result) {
 143         // Convert to screen coordinates
 144         double startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
 145         double startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY()); // Invert for Simantics
 146         double endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
 147         double endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());// Invert for Simantics
 148
 149         if (result == null) {
 150              result = new Path2D.Double();
 151         } else {
 152              result.reset();
 153         }
 154         result.moveTo(startX, startY);
 155         result.lineTo(endX, endY);
 156         return result;
 157     }
 158
 159     private boolean isSelected() {
 160         return NodeUtil.isSelected(this, 1);
 161     }
 162
 163     @Override
 164     public Rectangle2D getBoundsInLocal() {
 165         return bounds;
 166     }
 167
 168     private void updateBounds() {
 169         Rectangle2D oldBounds = bounds;
 170         if (oldBounds == null)
 171             oldBounds = new Rectangle2D.Double();
 172         bounds = calculateBounds(oldBounds);
 173     }
 174
 175     private Rectangle2D calculateBounds(Rectangle2D rect) {
 176         return calculatePath(edge, null).getBounds2D();
 177     }
 178
 179     public void setDNEdge(DistrictNetworkEdge edge) {
 180         this.edge = edge;
 181         updateBounds();
 182     }
 183
 184     public void setColor(Color color) {
 185         this.color = color;
 186     }
 187
 188     public Color getColor() {
 189         return color;
 190     }
 191
 192     @PropertySetter(value = "stroke")
 193     public void setStroke(Double stroke) {
 194         this.stroke = stroke;
 195     }
 196
 197     @PropertySetter(value = "dynamicColor")
 198     public void setDynamicColor(Color color) {
 199         this.dynamicColor = color;
 200     }
 201
 202     @PropertySetter(value = "SVG")
 203     public void setSVG(String value) {
 204         for (INode nn : this.getNodes())
 205             if (nn instanceof SVGNode)
 206                 ((SVGNode)nn).setData(value);
 207     }
 208
 209 }