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.district.network.ui.adapters.DistrictNetworkEdgeElementFactory;
  16 import org.simantics.scenegraph.INode;
  17 import org.simantics.scenegraph.ISelectionPainterNode;
  18 import org.simantics.scenegraph.g2d.G2DNode;
  19 import org.simantics.scenegraph.g2d.G2DParentNode;
  20 import org.simantics.scenegraph.g2d.G2DRenderingHints;
  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 static 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 boolean hidden = false;
  54
  55     private Double arrowLength;
  56
  57     private static double startX;
  58     private static double startY;
  59     private static double endX;
  60     private static double endY;
  61
  62     @Override
  63     public void init() {
  64     }
  65
  66     @Override
  67     public void render(Graphics2D g2d) {
  68         AffineTransform ot = null;
  69         AffineTransform t = getTransform();
  70         double scale = scaleStroke ? (Double) g2d.getRenderingHint(DistrictRenderingHints.KEY_VIEW_SCALE_UNDER_SPATIAL_ROOT) : 1.0;
  71         if (t != null && !t.isIdentity()) {
  72             //ot = g2d.getTransform();
  73             ot = (AffineTransform) g2d.getRenderingHint(G2DRenderingHints.KEY_TRANSFORM_UNDER_SPATIAL_ROOT);
  74             if (ot == null)
  75                 ot = g2d.getTransform();
  76             g2d.transform(t);
  77             if (scaleStroke) {
  78                 AffineTransform work = DistrictNetworkNodeUtils.sharedTransform.get();
  79                 work.setTransform(ot);
  80                 work.concatenate(t);
  81                 scale = DistrictNetworkNodeUtils.getScale(work);
  82             }
  83         }
  84
  85         if (!hidden) {
  86             Object aaHint = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
  87             g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  88
  89             Color oldColor = g2d.getColor();
  90             BasicStroke oldStroke = (BasicStroke) g2d.getStroke();
  91
  92             BasicStroke bs = null;
  93             if (scaleStroke) {
  94                 bs = GeometryUtils.scaleStroke(STROKE, getStrokeWidth(scale));
  95             } else {
  96                 bs = STROKE;
  97             }
  98
  99             int zoomLevel = (Integer) g2d.getRenderingHint(DistrictRenderingHints.KEY_VIEW_ZOOM_LEVEL);
 100             path = calculatePath(edge, path, zoomLevel > 13);
 101
 102             if (isSelected()) {
 103                 g2d.setColor(SELECTION_COLOR);
 104                 g2d.setStroke(GeometryUtils.scaleAndOffsetStrokeWidth(bs, 1.f, (float)(2 * STROKE.getLineWidth() / scale)));
 105                 g2d.draw(path);
 106             }
 107
 108             g2d.setColor(dynamicColor != null ? dynamicColor : color);
 109             g2d.setStroke(bs);
 110             g2d.draw(path);
 111
 112             // Draw arrow
 113             if (arrowLength != null) {
 114                 g2d.setColor(Color.BLACK);
 115                 float lw = STROKE.getLineWidth() / (float)scale;
 116                 g2d.setStroke(new BasicStroke(lw, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
 117
 118                 double l = arrowLength;
 119                 double w = 2 * (double) lw * Math.signum(l);
 120                 if (Math.abs(w) > Math.abs(l)) w = l;
 121                 double offset = 2 * (double) lw;
 122
 123                 double centerX = (startX + endX) / 2, centerY = (startY + endY) / 2;
 124                 double deltaX = endX - startX, deltaY = endY - startY;
 125                 double length = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
 126                 deltaX /= length;
 127                 deltaY /= length;
 128
 129                 double x0 = centerX - l/2 * deltaX + offset * deltaY;
 130                 double y0 = centerY - l/2 * deltaY - offset * deltaX;
 131                 double x1 = centerX + (l/2 - w) * deltaX + offset * deltaY;
 132                 double y1 = centerY + (l/2 - w) * deltaY - offset * deltaX;
 133
 134                 g2d.draw(new Line2D.Double(x0, y0, x1, y1));
 135
 136                 Path2D path = new Path2D.Double();
 137                 path.moveTo(x1 + w * deltaX, y1 + w * deltaY);
 138                 path.lineTo(x1 + w * deltaY, y1 - w * deltaX);
 139                 path.lineTo(x1 - w * deltaY, y1 + w * deltaX);
 140                 path.closePath();
 141                 g2d.fill(path);
 142             }
 143
 144             // Reset
 145             g2d.setStroke(oldStroke);
 146             g2d.setColor(oldColor);
 147             g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, aaHint);
 148         }
 149
 150         for (INode nn : getNodes()) {
 151             G2DNode g2dNode = (G2DNode)nn;
 152             if (g2dNode instanceof SVGNode) {
 153                 // Render SVG symbol
 154                 double viewScaleRecip = 10;
 155                 if (scaleStroke) {
 156                     viewScaleRecip /= scale;
 157                 }
 158
 159                 // If the node is hidden from the start, then the center point cannot be calculated yet.
 160                 Point2D p = getCenterPoint();
 161                 if (p == null)
 162                     break;
 163
 164                 symbolRect = DistrictNetworkNodeUtils.calculateDrawnGeometry(p, NORMAL, symbolRect, viewScaleRecip);
 165                 symbolTransform = DistrictNetworkNodeUtils.getTransformToRectangle(symbolRect, symbolTransform);
 166
 167                 g2dNode.setTransform(symbolTransform);
 168             }
 169             g2dNode.render(g2d);
 170         }
 171
 172         if (ot != null)
 173             g2d.setTransform(ot);
 174     }
 175
 176     public float getStrokeWidth(AffineTransform tr, boolean selection) {
 177         double scale = DistrictNetworkNodeUtils.getScale(tr);
 178         float width = STROKE.getLineWidth() * getStrokeWidth(scale);
 179         if (selection) width = width + (float) (2 * STROKE.getLineWidth() / scale);
 180         return width;
 181     }
 182
 183     private float getStrokeWidth(double scale) {
 184         if (scaleStroke) {
 185             double str = stroke != null ? Math.abs(stroke) : 1.0;
 186             float strokeWidth = (float) (str / scale);
 187             return strokeWidth;
 188         }
 189         else {
 190             return 1.f;
 191         }
 192     }
 193
 194     public Path2D getPath() {
 195         return path;
 196     }
 197
 198     private Point2D getCenterPoint() {
 199         if (path == null)
 200             return null;
 201         if (centerPoint == null)
 202             centerPoint = new Point2D.Double();
 203         Rectangle2D bounds = path.getBounds2D();
 204         centerPoint.setLocation(bounds.getCenterX(), bounds.getCenterY());
 205         return centerPoint;
 206     }
 207
 208 //    public static Line2D calculateLine(DistrictNetworkEdge edge, Line2D result) {
 209 //        // Convert to screen coordinates
 210 //        double startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
 211 //        double startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY()); // Invert for Simantics
 212 //        double endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
 213 //        double endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());// Invert for Simantics
 214 //
 215 //        if (result == null)
 216 //            result = new Line2D.Double();
 217 //        result.setLine(startX, startY, endX, endY);
 218 //        return result;
 219 //    }
 220
 221     public static Path2D calculatePath(DistrictNetworkEdge edge, Path2D result, boolean detailed) {
 222         startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
 223         startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY());
 224         endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
 225         endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());
 226
 227         if (result == null) {
 228              result = new Path2D.Double();
 229         } else {
 230              result.reset();
 231         }
 232         result.moveTo(startX, startY);
 233         if (detailed) {
 234             double[] detailedGeometry = edge.getGeometry();
 235             if (detailedGeometry != null && !DistrictNetworkEdgeElementFactory.EMPTY.equals(detailedGeometry)) {
 236                 // ok, lets do this
 237
 238                 for (int i = 0; i < detailedGeometry.length; i += 2) {
 239                     double x = ModelledCRS.longitudeToX(detailedGeometry[i]);
 240                     double y = ModelledCRS.latitudeToY(-detailedGeometry[i+1]);// Invert for Simantics
 241                     result.lineTo(x, y);
 242                 }
 243             }
 244         }
 245         result.lineTo(endX, endY);
 246         return result;
 247     }
 248
 249     private boolean isSelected() {
 250         return NodeUtil.isSelected(this, 1);
 251     }
 252
 253     @Override
 254     public Rectangle2D getBoundsInLocal() {
 255         return bounds;
 256     }
 257
 258     private void updateBounds() {
 259         Rectangle2D oldBounds = bounds;
 260         if (oldBounds == null)
 261             oldBounds = new Rectangle2D.Double();
 262         bounds = calculateBounds(oldBounds);
 263     }
 264
 265     private Rectangle2D calculateBounds(Rectangle2D rect) {
 266         return calculatePath(edge, null, false).getBounds2D();
 267     }
 268
 269     public void setDNEdge(DistrictNetworkEdge edge) {
 270         this.edge = edge;
 271         updateBounds();
 272     }
 273
 274     public void setColor(Color color) {
 275         this.color = color;
 276     }
 277
 278     public Color getColor() {
 279         return color;
 280     }
 281
 282     @PropertySetter(value = "stroke")
 283     public void setStroke(Double stroke) {
 284         this.stroke = stroke;
 285     }
 286
 287     @PropertySetter(value = "dynamicColor")
 288     public void setDynamicColor(Color color) {
 289         this.dynamicColor = color;
 290     }
 291
 292     @PropertySetter(value = "arrowLength")
 293     public void setArrowLength(Double length) {
 294         arrowLength = length;
 295     }
 296
 297     @PropertySetter(value = "SVG")
 298     public void setSVG(String value) {
 299         for (INode nn : this.getNodes())
 300             if (nn instanceof SVGNode)
 301                 ((SVGNode)nn).setData(value);
 302     }
 303
 304
 305     @PropertySetter(value = "hidden")
 306     public void setHidden(Boolean value) {
 307         this.hidden = value;
 308     }
 309 }