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