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.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     public 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     private transient Path2D detailedPath;
  36
  37     private transient int zoomLevel = 0;
  38
  39     static final boolean scaleStroke = true;
  40     private Color color;
  41     private Double stroke;
  42     private transient Color dynamicColor = null;
  43
  44     // Dimensions for shut-off valve symbol
  45     private static final double left = -0.25;
  46     private static final double top = -0.25;
  47     private static final double width = 0.5;
  48     private static final double height = 0.5;
  49
  50     private static final Rectangle2D NORMAL = new Rectangle2D.Double(left, top, width, height);
  51
  52     private transient Point2D centerPoint;
  53     private transient Point2D detailedCenterPoint;
  54     private transient Point2D direction;
  55     private transient Point2D detailedDirection;
  56
  57     private transient Rectangle2D symbolRect;
  58     private transient AffineTransform symbolTransform;
  59
  60     private boolean hidden = false;
  61
  62     private static double startX;
  63     private static double startY;
  64     private static double endX;
  65     private static double endY;
  66
  67     @Override
  68     public void init() {
  69     }
  70
  71     @Override
  72     public void render(Graphics2D g2d) {
  73         AffineTransform ot = null;
  74         AffineTransform t = getTransform();
  75         double scale = scaleStroke ? (Double) g2d.getRenderingHint(DistrictRenderingHints.KEY_VIEW_SCALE_UNDER_SPATIAL_ROOT) : 1.0;
  76         if (t != null && !t.isIdentity()) {
  77             //ot = g2d.getTransform();
  78             ot = (AffineTransform) g2d.getRenderingHint(G2DRenderingHints.KEY_TRANSFORM_UNDER_SPATIAL_ROOT);
  79             if (ot == null)
  80                 ot = g2d.getTransform();
  81             g2d.transform(t);
  82             if (scaleStroke) {
  83                 AffineTransform work = DistrictNetworkNodeUtils.sharedTransform.get();
  84                 work.setTransform(ot);
  85                 work.concatenate(t);
  86                 scale = DistrictNetworkNodeUtils.getScale(work);
  87             }
  88         }
  89
  90         zoomLevel = (Integer) g2d.getRenderingHint(DistrictRenderingHints.KEY_VIEW_ZOOM_LEVEL);
  91
  92         if (!hidden) {
  93             Object aaHint = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
  94             g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  95
  96             Color oldColor = g2d.getColor();
  97             BasicStroke oldStroke = (BasicStroke) g2d.getStroke();
  98
  99             BasicStroke bs = null;
 100             if (scaleStroke) {
 101                 bs = GeometryUtils.scaleStroke(STROKE, getStrokeWidth(scale));
 102             } else {
 103                 bs = STROKE;
 104             }
 105
 106             Path2D path = renderDetailed(zoomLevel) ? this.detailedPath : this.path;
 107
 108             if (isSelected()) {
 109                 g2d.setColor(SELECTION_COLOR);
 110                 g2d.setStroke(GeometryUtils.scaleAndOffsetStrokeWidth(bs, 1.f, (float)(2 * STROKE.getLineWidth() / scale)));
 111                 g2d.draw(path);
 112             }
 113
 114             g2d.setColor(dynamicColor != null ? dynamicColor : color);
 115             g2d.setStroke(bs);
 116             g2d.draw(path);
 117
 118             // Reset
 119             g2d.setStroke(oldStroke);
 120             g2d.setColor(oldColor);
 121             g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, aaHint);
 122         }
 123
 124         Point2D centerP = getCenterPoint(zoomLevel);
 125         for (INode nn : getNodes()) {
 126             G2DNode g2dNode = (G2DNode) nn;
 127             if (g2dNode instanceof SVGNode) {
 128                 // If the node is hidden from the start, then the center point cannot be calculated yet.
 129                 if (!isDefined(centerP))
 130                     break;
 131
 132                 // Render SVG symbol
 133                 double viewScaleRecip = scaleStroke ? 10 / scale : 10;
 134                 symbolRect = DistrictNetworkNodeUtils.calculateDrawnGeometry(centerP, NORMAL, symbolRect, viewScaleRecip);
 135                 symbolTransform = DistrictNetworkNodeUtils.getTransformToRectangle(symbolRect, symbolTransform);
 136                 g2dNode.setTransform(symbolTransform);
 137             }
 138             g2dNode.render(g2d);
 139         }
 140
 141         if (ot != null)
 142             g2d.setTransform(ot);
 143     }
 144
 145     static boolean isDefined(Point2D p) {
 146         return p != null && !(Double.isNaN(p.getX()) || Double.isNaN(p.getY()));
 147     }
 148
 149     boolean renderDetailed(int zoomLevel) {
 150         return zoomLevel > 13;
 151     }
 152
 153     public float getStrokeWidth(AffineTransform tr, boolean selection) {
 154         double scale = DistrictNetworkNodeUtils.getScale(tr);
 155         float width = STROKE.getLineWidth() * getStrokeWidth(scale);
 156         if (selection) width = width + (float) (2 * STROKE.getLineWidth() / scale);
 157         return width;
 158     }
 159
 160     private float getStrokeWidth(double scale) {
 161         if (scaleStroke) {
 162             double str = stroke != null ? Math.abs(stroke) : 1.0;
 163             float strokeWidth = (float) (str / scale);
 164             return strokeWidth;
 165         }
 166         else {
 167             return 1.f;
 168         }
 169     }
 170
 171     public Path2D getPath() {
 172         return renderDetailed(zoomLevel) ? detailedPath : path;
 173     }
 174
 175     public Point2D getCenterPoint(int zoomLevel) {
 176         return renderDetailed(zoomLevel) ? detailedCenterPoint : centerPoint;
 177     }
 178
 179     public Point2D getDirection(int zoomLevel) {
 180         return renderDetailed(zoomLevel) ? detailedDirection : direction;
 181     }
 182
 183     public static Path2D calculatePath(DistrictNetworkEdge edge, Path2D result, boolean detailed) {
 184         startX = ModelledCRS.longitudeToX(edge.getStartPoint().getX());
 185         startY = ModelledCRS.latitudeToY(-edge.getStartPoint().getY());
 186         endX = ModelledCRS.longitudeToX(edge.getEndPoint().getX());
 187         endY = ModelledCRS.latitudeToY(-edge.getEndPoint().getY());
 188
 189         if (result == null) {
 190              result = new Path2D.Double();
 191         } else {
 192              result.reset();
 193         }
 194         result.moveTo(startX, startY);
 195         if (detailed) {
 196             double[] detailedGeometry = edge.getGeometry();
 197             if (detailedGeometry != null && !DistrictNetworkEdgeElementFactory.EMPTY.equals(detailedGeometry)) {
 198                 // ok, lets do this
 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     /**
 227      * Calculates conservative bounds of the node provided by
 228      * <code>detailedPath</code>. These might be larger than the simplified bounds
 229      * of <code>path</code> but the conservative bounds ensure that spatial
 230      * optimizations work properly.
 231      */
 232     private Rectangle2D calculateBounds(Rectangle2D rect) {
 233         if (detailedPath == null)
 234             detailedPath = calculatePath(edge, detailedPath, true);
 235         return detailedPath.getBounds2D();
 236     }
 237
 238     public void setDNEdge(DistrictNetworkEdge edge) {
 239         this.edge = edge;
 240         path = calculatePath(edge, path, false);
 241         detailedPath = calculatePath(edge, detailedPath, true);
 242
 243         centerPoint = new Point2D.Double();
 244         detailedCenterPoint = new Point2D.Double();
 245         direction = new Point2D.Double();
 246         detailedDirection = new Point2D.Double();
 247
 248         DistrictNetworkNodeUtils.calculateCenterPointAndDirection(path, centerPoint, direction);
 249         DistrictNetworkNodeUtils.calculateCenterPointAndDirection(detailedPath, detailedCenterPoint, detailedDirection);
 250
 251         updateBounds();
 252     }
 253
 254     public void setColor(Color color) {
 255         this.color = color;
 256     }
 257
 258     public Color getColor() {
 259         return color;
 260     }
 261
 262     @PropertySetter(value = "stroke")
 263     public void setStroke(Double stroke) {
 264         this.stroke = stroke;
 265     }
 266
 267     @PropertySetter(value = "dynamicColor")
 268     public void setDynamicColor(Color color) {
 269         this.dynamicColor = color;
 270     }
 271
 272     @PropertySetter(value = "arrowLength")
 273     public void setArrowLength(Double length) {
 274         // find if there is a child deferred arrow node
 275         DistrictNetworkEdgeArrayNode child = getOrCreateNode(DistrictNetworkEdgeArrayNode.NODE_KEY, DistrictNetworkEdgeArrayNode.class);
 276         child.setEdgeNode(this);
 277         child.setArrowLength(length);
 278         //arrowLength = length;
 279     }
 280
 281     @PropertySetter(value = "SVG")
 282     public void setSVG(String value) {
 283         for (INode nn : this.getNodes())
 284             if (nn instanceof SVGNode)
 285                 ((SVGNode)nn).setData(value);
 286     }
 287
 288     @PropertySetter(value = "hidden")
 289     public void setHidden(Boolean value) {
 290         this.hidden = value;
 291     }
 292
 293 }