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             AffineTransform tr = g2d.getTransform();
  82             scale = DistrictNetworkNodeUtils.getScale(tr);
  83             bs = GeometryUtils.scaleStroke(STROKE, getStrokeWidth(scale));
  84         } else {
  85             bs = STROKE;
  86         }
  87         int zoomLevel = MapScalingTransform.zoomLevel(ot);
  88         path = calculatePath(edge, path, zoomLevel > 15);
  89
  90         if (isSelected()) {
  91             g2d.setColor(SELECTION_COLOR);
  92             g2d.setStroke(GeometryUtils.scaleAndOffsetStrokeWidth(bs, 1.f, (float)(2 * STROKE.getLineWidth() / scale)));
  93             g2d.draw(path);
  94         }
  95
  96         g2d.setColor(dynamicColor != null ? dynamicColor : color);
  97         g2d.setStroke(bs);
  98         g2d.draw(path);
  99
 100         // Draw arrow
 101         if (arrowLength != null) {
 102             g2d.setColor(Color.BLACK);
 103             g2d.setStroke(new BasicStroke(bs.getLineWidth(), BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
 104
 105             double l = arrowLength;
 106             double w = 2 * (double) bs.getLineWidth() * Math.signum(l);
 107             if (Math.abs(w) > Math.abs(l)) w = l;
 108             double offset = 2 * (double) bs.getLineWidth();
 109
 110             double centerX = (startX + endX) / 2, centerY = (startY + endY) / 2;
 111             double deltaX = endX - startX, deltaY = endY - startY;
 112             double length = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
 113             deltaX /= length;
 114             deltaY /= length;
 115
 116             double x0 = centerX - l/2 * deltaX + offset * deltaY;
 117             double y0 = centerY - l/2 * deltaY - offset * deltaX;
 118             double x1 = centerX + (l/2 - w) * deltaX + offset * deltaY;
 119             double y1 = centerY + (l/2 - w) * deltaY - offset * deltaX;
 120
 121             g2d.draw(new Line2D.Double(x0, y0, x1, y1));
 122
 123             Path2D path = new Path2D.Double();
 124             path.moveTo(x1 + w * deltaX, y1 + w * deltaY);
 125             path.lineTo(x1 + w * deltaY, y1 - w * deltaX);
 126             path.lineTo(x1 - w * deltaY, y1 + w * deltaX);
 127             path.closePath();
 128             g2d.fill(path);
 129         }
 130
 131         // Reset
 132         g2d.setStroke(oldStroke);
 133         g2d.setColor(oldColor);
 134
 135         // Render SVG symbol
 136         double viewScaleRecip = 10;
 137         if (scaleStroke) {
 138             double scale = GeometryUtils.getScale(g2d.getTransform());
 139             scale = Math.max(10000, Math.min(scale, 50000));
 140             viewScaleRecip /= scale;
 141         }
 142
 143         Point2D p = getCenterPoint();
 144         symbolRect = DistrictNetworkNodeUtils.calculateDrawnGeometry(p, NORMAL, symbolRect, viewScaleRecip);
 145         symbolTransform = DistrictNetworkNodeUtils.getTransformToRectangle(symbolRect, symbolTransform);
 146
 147         for (INode nn : getNodes()) {
 148             G2DNode g2dNode = (G2DNode)nn;
 149             g2dNode.setTransform(symbolTransform);
 150             g2dNode.render(g2d);
 151         }
 152
 153         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, aaHint);
 154
 155         if (ot != null)
 156             g2d.setTransform(ot);
 157     }
 158
 159     public float getStrokeWidth(AffineTransform tr, boolean selection) {
 160         double scale = DistrictNetworkNodeUtils.getScale(tr);
 161         float width = STROKE.getLineWidth() * getStrokeWidth(scale);
 162         if (selection) width = width + (float) (2 * STROKE.getLineWidth() / scale);
 163         return width;
 164     }
 165
 166     private float getStrokeWidth(double scale) {
 167         if (scaleStroke) {
 168             double str = stroke != null ? Math.abs(stroke) : 1.0;
 169             float strokeWidth = (float) (str / scale);
 170             return strokeWidth;
 171         }
 172         else {
 173             return 1.f;
 174         }
 175     }
 176
 177     public Path2D getPath() {
 178         return path;
 179     }
 180
 181     private Point2D getCenterPoint() {
 182         if (centerPoint == null)
 183             centerPoint = new Point2D.Double();
 184
 185         Rectangle2D bounds = path.getBounds2D();
 186         centerPoint.setLocation(bounds.getCenterX(), bounds.getCenterY());
 187         return centerPoint;
 188     }
 189
 190 //    public static Line2D calculateLine(DistrictNetworkEdge edge, Line2D result) {
 191 //        // Convert to screen coordinates
 192 //        double startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
 193 //        double startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY()); // Invert for Simantics
 194 //        double endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
 195 //        double endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());// Invert for Simantics
 196 //
 197 //        if (result == null)
 198 //            result = new Line2D.Double();
 199 //        result.setLine(startX, startY, endX, endY);
 200 //        return result;
 201 //    }
 202
 203     public static Path2D calculatePath(DistrictNetworkEdge edge, Path2D result, boolean detailed) {
 204         startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
 205         startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY());
 206         endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
 207         endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());
 208
 209         if (result == null) {
 210              result = new Path2D.Double();
 211         } else {
 212              result.reset();
 213         }
 214         result.moveTo(startX, startY);
 215         if (detailed) {
 216             double[] detailedGeometry = edge.getGeometry();
 217             if (detailedGeometry != null && !DistrictNetworkEdgeElementFactory.EMPTY.equals(detailedGeometry)) {
 218                 // ok, lets do this
 219
 220                 for (int i = 0; i < detailedGeometry.length; i += 2) {
 221                     double x = ModelledCRS.longitudeToX(detailedGeometry[i]);
 222                     double y = ModelledCRS.latitudeToY(-detailedGeometry[i+1]);// Invert for Simantics
 223                     result.lineTo(x, y);
 224                 }
 225             }
 226         }
 227         result.lineTo(endX, endY);
 228         return result;
 229     }
 230
 231     private boolean isSelected() {
 232         return NodeUtil.isSelected(this, 1);
 233     }
 234
 235     @Override
 236     public Rectangle2D getBoundsInLocal() {
 237         return bounds;
 238     }
 239
 240     private void updateBounds() {
 241         Rectangle2D oldBounds = bounds;
 242         if (oldBounds == null)
 243             oldBounds = new Rectangle2D.Double();
 244         bounds = calculateBounds(oldBounds);
 245     }
 246
 247     private Rectangle2D calculateBounds(Rectangle2D rect) {
 248         return calculatePath(edge, null, false).getBounds2D();
 249     }
 250
 251     public void setDNEdge(DistrictNetworkEdge edge) {
 252         this.edge = edge;
 253         updateBounds();
 254     }
 255
 256     public void setColor(Color color) {
 257         this.color = color;
 258     }
 259
 260     public Color getColor() {
 261         return color;
 262     }
 263
 264     @PropertySetter(value = "stroke")
 265     public void setStroke(Double stroke) {
 266         this.stroke = stroke;
 267     }
 268
 269     @PropertySetter(value = "dynamicColor")
 270     public void setDynamicColor(Color color) {
 271         this.dynamicColor = color;
 272     }
 273
 274     @PropertySetter(value = "arrowLength")
 275     public void setArroLength(Double length) {
 276         arrowLength = length;
 277     }
 278
 279     @PropertySetter(value = "SVG")
 280     public void setSVG(String value) {
 281         for (INode nn : this.getNodes())
 282             if (nn instanceof SVGNode)
 283                 ((SVGNode)nn).setData(value);
 284     }
 285
 286 }