gerrit.simantics Code Review - simantics/district.git/blob

   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.district.network.ui.adapters.DistrictNetworkEdgeElementFactory;
  16 import org.simantics.maps.MapScalingTransform;
  17 import org.simantics.scenegraph.INode;
  18 import org.simantics.scenegraph.ISelectionPainterNode;
  19 import org.simantics.scenegraph.g2d.G2DNode;
  20 import org.simantics.scenegraph.g2d.G2DParentNode;
  21 import org.simantics.scenegraph.g2d.nodes.SVGNode;
  22 import org.simantics.scenegraph.utils.GeometryUtils;
  23 import org.simantics.scenegraph.utils.NodeUtil;
  24
  25 public class DistrictNetworkEdgeNode extends G2DParentNode implements ISelectionPainterNode {
  26
  27     private static final long serialVersionUID = 8049769475036519806L;
  28
  29     private static final BasicStroke STROKE           = new BasicStroke(4, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
  30     private static final Color       SELECTION_COLOR  = new Color(255, 0, 255, 96);
  31
  32     private DistrictNetworkEdge edge;
  33     private Rectangle2D bounds;
  34     private transient Path2D path;
  35
  36     private boolean scaleStroke = true;
  37     private Color color;
  38     private Double stroke;
  39     private transient Color dynamicColor = null;
  40
  41     // Dimensions for shut-off valve symbol
  42     private static final double left = -0.25;
  43     private static final double top = -0.25;
  44     private static final double width = 0.5;
  45     private static final double height = 0.5;
  46
  47     private static final Rectangle2D NORMAL = new Rectangle2D.Double(left, top, width, height);
  48
  49     private transient Point2D centerPoint;
  50     private transient Rectangle2D symbolRect;
  51     private transient AffineTransform symbolTransform;
  52
  53     private Double arrowLength;
  54
  55     private static double startX;
  56     private static double startY;
  57     private static double endX;
  58     private static double endY;
  59
  60     @Override
  61     public void init() {
  62     }
  63
  64     @Override
  65     public void render(Graphics2D g2d) {
  66         AffineTransform ot = null;
  67         AffineTransform t = getTransform();
  68         if (t != null && !t.isIdentity()) {
  69             ot = g2d.getTransform();
  70             g2d.transform(getTransform());
  71         }
  72
  73         Object aaHint = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
  74         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  75
  76         Color oldColor = g2d.getColor();
  77         BasicStroke oldStroke = (BasicStroke) g2d.getStroke();
  78
  79         BasicStroke bs = null;
  80         if (scaleStroke) {
  81             double scale = GeometryUtils.getScale(g2d.getTransform());
  82             scale = Math.max(10000, Math.min(scale, 50000));
  83             double str = stroke != null ? Math.abs(stroke) : 1.0;
  84             bs = GeometryUtils.scaleStroke(STROKE, (float) (str / scale));
  85         } else {
  86             bs = STROKE;
  87         }
  88         int zoomLevel = MapScalingTransform.zoomLevel(ot);
  89         path = calculatePath(edge, path, zoomLevel > 15);
  90
  91         if (isSelected()) {
  92             g2d.setColor(SELECTION_COLOR);
  93             g2d.setStroke(GeometryUtils.scaleStroke(bs, 4f));
  94             g2d.draw(path);
  95         }
  96
  97         g2d.setColor(dynamicColor != null ? dynamicColor : color);
  98         g2d.setStroke(bs);
  99         g2d.draw(path);
 100
 101         // Draw arrow
 102         if (arrowLength != null) {
 103             g2d.setColor(Color.BLACK);
 104             g2d.setStroke(new BasicStroke(bs.getLineWidth(), BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
 105
 106             double l = arrowLength;
 107             double w = 2 * (double) bs.getLineWidth() * Math.signum(l);
 108             if (Math.abs(w) > Math.abs(l)) w = l;
 109             double offset = 2 * (double) bs.getLineWidth();
 110
 111             double centerX = (startX + endX) / 2, centerY = (startY + endY) / 2;
 112             double deltaX = endX - startX, deltaY = endY - startY;
 113             double length = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
 114             deltaX /= length;
 115             deltaY /= length;
 116
 117             double x0 = centerX - l/2 * deltaX + offset * deltaY;
 118             double y0 = centerY - l/2 * deltaY - offset * deltaX;
 119             double x1 = centerX + (l/2 - w) * deltaX + offset * deltaY;
 120             double y1 = centerY + (l/2 - w) * deltaY - offset * deltaX;
 121
 122             g2d.draw(new Line2D.Double(x0, y0, x1, y1));
 123
 124             Path2D path = new Path2D.Double();
 125             path.moveTo(x1 + w * deltaX, y1 + w * deltaY);
 126             path.lineTo(x1 + w * deltaY, y1 - w * deltaX);
 127             path.lineTo(x1 - w * deltaY, y1 + w * deltaX);
 128             path.closePath();
 129             g2d.fill(path);
 130         }
 131
 132         // Reset
 133         g2d.setStroke(oldStroke);
 134         g2d.setColor(oldColor);
 135
 136         // Render SVG symbol
 137         double viewScaleRecip = 10;
 138         if (scaleStroke) {
 139             double scale = GeometryUtils.getScale(g2d.getTransform());
 140             scale = Math.max(10000, Math.min(scale, 50000));
 141             viewScaleRecip /= scale;
 142         }
 143
 144         Point2D p = getCenterPoint();
 145         symbolRect = DistrictNetworkNodeUtils.calculateDrawnGeometry(p, NORMAL, symbolRect, viewScaleRecip);
 146         symbolTransform = DistrictNetworkNodeUtils.getTransformToRectangle(symbolRect, symbolTransform);
 147
 148         for (INode nn : getNodes()) {
 149             G2DNode g2dNode = (G2DNode)nn;
 150             g2dNode.setTransform(symbolTransform);
 151             g2dNode.render(g2d);
 152         }
 153
 154         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, aaHint);
 155
 156         if (ot != null)
 157             g2d.setTransform(ot);
 158     }
 159
 160     private Point2D getCenterPoint() {
 161         if (centerPoint == null)
 162             centerPoint = new Point2D.Double();
 163
 164         Rectangle2D bounds = path.getBounds2D();
 165         centerPoint.setLocation(bounds.getCenterX(), bounds.getCenterY());
 166         return centerPoint;
 167     }
 168
 169 //    public static Line2D calculateLine(DistrictNetworkEdge edge, Line2D result) {
 170 //        // Convert to screen coordinates
 171 //        double startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
 172 //        double startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY()); // Invert for Simantics
 173 //        double endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
 174 //        double endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());// Invert for Simantics
 175 //
 176 //        if (result == null)
 177 //            result = new Line2D.Double();
 178 //        result.setLine(startX, startY, endX, endY);
 179 //        return result;
 180 //    }
 181
 182     public static Path2D calculatePath(DistrictNetworkEdge edge, Path2D result, boolean detailed) {
 183         startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
 184         startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY());
 185         endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
 186         endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());
 187
 188         if (result == null) {
 189              result = new Path2D.Double();
 190         } else {
 191              result.reset();
 192         }
 193         result.moveTo(startX, startY);
 194         if (detailed) {
 195             double[] detailedGeometry = edge.getGeometry();
 196             if (detailedGeometry != null && !DistrictNetworkEdgeElementFactory.EMPTY.equals(detailedGeometry)) {
 197                 // ok, lets do this
 198
 199                 for (int i = 0; i < detailedGeometry.length; i += 2) {
 200                     double x = ModelledCRS.longitudeToX(detailedGeometry[i]);
 201                     double y = ModelledCRS.latitudeToY(-detailedGeometry[i+1]);// Invert for Simantics
 202                     result.lineTo(x, y);
 203                 }
 204             }
 205         }
 206         result.lineTo(endX, endY);
 207         return result;
 208     }
 209
 210     private boolean isSelected() {
 211         return NodeUtil.isSelected(this, 1);
 212     }
 213
 214     @Override
 215     public Rectangle2D getBoundsInLocal() {
 216         return bounds;
 217     }
 218
 219     private void updateBounds() {
 220         Rectangle2D oldBounds = bounds;
 221         if (oldBounds == null)
 222             oldBounds = new Rectangle2D.Double();
 223         bounds = calculateBounds(oldBounds);
 224     }
 225
 226     private Rectangle2D calculateBounds(Rectangle2D rect) {
 227         return calculatePath(edge, null, false).getBounds2D();
 228     }
 229
 230     public void setDNEdge(DistrictNetworkEdge edge) {
 231         this.edge = edge;
 232         updateBounds();
 233     }
 234
 235     public void setColor(Color color) {
 236         this.color = color;
 237     }
 238
 239     public Color getColor() {
 240         return color;
 241     }
 242
 243     @PropertySetter(value = "stroke")
 244     public void setStroke(Double stroke) {
 245         this.stroke = stroke;
 246     }
 247
 248     @PropertySetter(value = "dynamicColor")
 249     public void setDynamicColor(Color color) {
 250         this.dynamicColor = color;
 251     }
 252
 253     @PropertySetter(value = "arrowLength")
 254     public void setArroLength(Double length) {
 255         arrowLength = length;
 256     }
 257
 258     @PropertySetter(value = "SVG")
 259     public void setSVG(String value) {
 260         for (INode nn : this.getNodes())
 261             if (nn instanceof SVGNode)
 262                 ((SVGNode)nn).setData(value);
 263     }
 264
 265 }