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.maps.MapScalingTransform;
  17 import org.simantics.scenegraph.INode;
  18 import org.simantics.scenegraph.ISelectionPainterNode;
  19 import org.simantics.scenegraph.INode.PropertySetter;
  20 import org.simantics.scenegraph.g2d.G2DNode;
  21 import org.simantics.scenegraph.g2d.G2DParentNode;
  22 import org.simantics.scenegraph.g2d.nodes.SVGNode;
  23 import org.simantics.scenegraph.utils.GeometryUtils;
  24 import org.simantics.scenegraph.utils.NodeUtil;
  25
  26 public class DistrictNetworkEdgeNode extends G2DParentNode implements ISelectionPainterNode {
  27
  28     private static final long serialVersionUID = 8049769475036519806L;
  29
  30     private static final BasicStroke STROKE           = new BasicStroke(4, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
  31     private static final Color       SELECTION_COLOR  = new Color(255, 0, 255, 96);
  32
  33     private DistrictNetworkEdge edge;
  34     private Rectangle2D bounds;
  35     private transient Path2D path;
  36
  37     private boolean scaleStroke = true;
  38     private Color color;
  39     private Double stroke;
  40     private transient Color dynamicColor = null;
  41
  42     // Dimensions for shut-off valve symbol
  43     private static final double left = -0.25;
  44     private static final double top = -0.25;
  45     private static final double width = 0.5;
  46     private static final double height = 0.5;
  47
  48     private static final Rectangle2D NORMAL = new Rectangle2D.Double(left, top, width, height);
  49
  50     private transient Point2D centerPoint;
  51     private transient Rectangle2D symbolRect;
  52     private transient AffineTransform symbolTransform;
  53
  54     private boolean hidden = false;
  55
  56     private Double arrowLength;
  57
  58     private static double startX;
  59     private static double startY;
  60     private static double endX;
  61     private static double endY;
  62
  63     @Override
  64     public void init() {
  65     }
  66
  67     @Override
  68     public void render(Graphics2D g2d) {
  69         AffineTransform ot = null;
  70         AffineTransform t = getTransform();
  71         if (t != null && !t.isIdentity()) {
  72             ot = g2d.getTransform();
  73             g2d.transform(getTransform());
  74         }
  75
  76         double scale = 1.0;
  77         if (scaleStroke) {
  78             AffineTransform tr = g2d.getTransform();
  79             scale = DistrictNetworkNodeUtils.getScale(tr);
  80         }
  81
  82         if (!hidden) {
  83             Object aaHint = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
  84             g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  85
  86             Color oldColor = g2d.getColor();
  87             BasicStroke oldStroke = (BasicStroke) g2d.getStroke();
  88
  89             BasicStroke bs = null;
  90             if (scaleStroke) {
  91                 bs = GeometryUtils.scaleStroke(STROKE, getStrokeWidth(scale));
  92             } else {
  93                 bs = STROKE;
  94             }
  95
  96             int zoomLevel = MapScalingTransform.zoomLevel(ot);
  97             path = calculatePath(edge, path, zoomLevel > 15);
  98
  99             if (isSelected()) {
 100                 g2d.setColor(SELECTION_COLOR);
 101                 g2d.setStroke(GeometryUtils.scaleAndOffsetStrokeWidth(bs, 1.f, (float)(2 * STROKE.getLineWidth() / scale)));
 102                 g2d.draw(path);
 103             }
 104
 105             g2d.setColor(dynamicColor != null ? dynamicColor : color);
 106             g2d.setStroke(bs);
 107             g2d.draw(path);
 108
 109             // Draw arrow
 110             if (arrowLength != null) {
 111                 g2d.setColor(Color.BLACK);
 112                 float lw = STROKE.getLineWidth() / (float)scale;
 113                 g2d.setStroke(new BasicStroke(lw, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
 114
 115                 double l = arrowLength;
 116                 double w = 2 * (double) lw * Math.signum(l);
 117                 if (Math.abs(w) > Math.abs(l)) w = l;
 118                 double offset = 2 * (double) lw;
 119
 120                 double centerX = (startX + endX) / 2, centerY = (startY + endY) / 2;
 121                 double deltaX = endX - startX, deltaY = endY - startY;
 122                 double length = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
 123                 deltaX /= length;
 124                 deltaY /= length;
 125
 126                 double x0 = centerX - l/2 * deltaX + offset * deltaY;
 127                 double y0 = centerY - l/2 * deltaY - offset * deltaX;
 128                 double x1 = centerX + (l/2 - w) * deltaX + offset * deltaY;
 129                 double y1 = centerY + (l/2 - w) * deltaY - offset * deltaX;
 130
 131                 g2d.draw(new Line2D.Double(x0, y0, x1, y1));
 132
 133                 Path2D path = new Path2D.Double();
 134                 path.moveTo(x1 + w * deltaX, y1 + w * deltaY);
 135                 path.lineTo(x1 + w * deltaY, y1 - w * deltaX);
 136                 path.lineTo(x1 - w * deltaY, y1 + w * deltaX);
 137                 path.closePath();
 138                 g2d.fill(path);
 139             }
 140
 141             // Reset
 142             g2d.setStroke(oldStroke);
 143             g2d.setColor(oldColor);
 144             g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, aaHint);
 145         }
 146
 147         for (INode nn : getNodes()) {
 148             G2DNode g2dNode = (G2DNode)nn;
 149             if (g2dNode instanceof SVGNode) {
 150                 // Render SVG symbol
 151                 double viewScaleRecip = 10;
 152                 if (scaleStroke) {
 153                     viewScaleRecip /= scale;
 154                 }
 155
 156                 Point2D p = getCenterPoint();
 157                 symbolRect = DistrictNetworkNodeUtils.calculateDrawnGeometry(p, NORMAL, symbolRect, viewScaleRecip);
 158                 symbolTransform = DistrictNetworkNodeUtils.getTransformToRectangle(symbolRect, symbolTransform);
 159
 160                 g2dNode.setTransform(symbolTransform);
 161             }
 162             g2dNode.render(g2d);
 163         }
 164
 165         if (ot != null)
 166             g2d.setTransform(ot);
 167     }
 168
 169     public float getStrokeWidth(AffineTransform tr, boolean selection) {
 170         double scale = DistrictNetworkNodeUtils.getScale(tr);
 171         float width = STROKE.getLineWidth() * getStrokeWidth(scale);
 172         if (selection) width = width + (float) (2 * STROKE.getLineWidth() / scale);
 173         return width;
 174     }
 175
 176     private float getStrokeWidth(double scale) {
 177         if (scaleStroke) {
 178             double str = stroke != null ? Math.abs(stroke) : 1.0;
 179             float strokeWidth = (float) (str / scale);
 180             return strokeWidth;
 181         }
 182         else {
 183             return 1.f;
 184         }
 185     }
 186
 187     public Path2D getPath() {
 188         return path;
 189     }
 190
 191     private Point2D getCenterPoint() {
 192         if (centerPoint == null)
 193             centerPoint = new Point2D.Double();
 194
 195         Rectangle2D bounds = path.getBounds2D();
 196         centerPoint.setLocation(bounds.getCenterX(), bounds.getCenterY());
 197         return centerPoint;
 198     }
 199
 200 //    public static Line2D calculateLine(DistrictNetworkEdge edge, Line2D result) {
 201 //        // Convert to screen coordinates
 202 //        double startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
 203 //        double startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY()); // Invert for Simantics
 204 //        double endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
 205 //        double endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());// Invert for Simantics
 206 //
 207 //        if (result == null)
 208 //            result = new Line2D.Double();
 209 //        result.setLine(startX, startY, endX, endY);
 210 //        return result;
 211 //    }
 212
 213     public static Path2D calculatePath(DistrictNetworkEdge edge, Path2D result, boolean detailed) {
 214         startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
 215         startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY());
 216         endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
 217         endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());
 218
 219         if (result == null) {
 220              result = new Path2D.Double();
 221         } else {
 222              result.reset();
 223         }
 224         result.moveTo(startX, startY);
 225         if (detailed) {
 226             double[] detailedGeometry = edge.getGeometry();
 227             if (detailedGeometry != null && !DistrictNetworkEdgeElementFactory.EMPTY.equals(detailedGeometry)) {
 228                 // ok, lets do this
 229
 230                 for (int i = 0; i < detailedGeometry.length; i += 2) {
 231                     double x = ModelledCRS.longitudeToX(detailedGeometry[i]);
 232                     double y = ModelledCRS.latitudeToY(-detailedGeometry[i+1]);// Invert for Simantics
 233                     result.lineTo(x, y);
 234                 }
 235             }
 236         }
 237         result.lineTo(endX, endY);
 238         return result;
 239     }
 240
 241     private boolean isSelected() {
 242         return NodeUtil.isSelected(this, 1);
 243     }
 244
 245     @Override
 246     public Rectangle2D getBoundsInLocal() {
 247         return bounds;
 248     }
 249
 250     private void updateBounds() {
 251         Rectangle2D oldBounds = bounds;
 252         if (oldBounds == null)
 253             oldBounds = new Rectangle2D.Double();
 254         bounds = calculateBounds(oldBounds);
 255     }
 256
 257     private Rectangle2D calculateBounds(Rectangle2D rect) {
 258         return calculatePath(edge, null, false).getBounds2D();
 259     }
 260
 261     public void setDNEdge(DistrictNetworkEdge edge) {
 262         this.edge = edge;
 263         updateBounds();
 264     }
 265
 266     public void setColor(Color color) {
 267         this.color = color;
 268     }
 269
 270     public Color getColor() {
 271         return color;
 272     }
 273
 274     @PropertySetter(value = "stroke")
 275     public void setStroke(Double stroke) {
 276         this.stroke = stroke;
 277     }
 278
 279     @PropertySetter(value = "dynamicColor")
 280     public void setDynamicColor(Color color) {
 281         this.dynamicColor = color;
 282     }
 283
 284     @PropertySetter(value = "arrowLength")
 285     public void setArroLength(Double length) {
 286         arrowLength = length;
 287     }
 288
 289     @PropertySetter(value = "SVG")
 290     public void setSVG(String value) {
 291         for (INode nn : this.getNodes())
 292             if (nn instanceof SVGNode)
 293                 ((SVGNode)nn).setData(value);
 294     }
 295
 296
 297     @PropertySetter(value = "hidden")
 298     public void setHidden(Boolean value) {
 299         this.hidden = value;
 300     }
 301 }