org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/NetworkDrawingNode.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.Stroke;
   7 import java.awt.geom.AffineTransform;
   8 import java.awt.geom.Path2D;
   9 import java.awt.geom.Point2D;
  10 import java.awt.geom.Rectangle2D;
  11 import java.util.ArrayList;
  12 import java.util.Iterator;
  13 import java.util.List;
  14 import java.util.concurrent.TimeUnit;
  15
  16 import org.simantics.Simantics;
  17 import org.simantics.db.Resource;
  18 import org.simantics.db.WriteGraph;
  19 import org.simantics.db.common.request.WriteRequest;
  20 import org.simantics.db.exception.DatabaseException;
  21 import org.simantics.db.request.Write;
  22 import org.simantics.diagram.elements.DiagramNodeUtil;
  23 import org.simantics.diagram.ui.DiagramModelHints;
  24 import org.simantics.district.network.DNEdgeBuilder;
  25 import org.simantics.district.network.DistrictNetworkUtil;
  26 import org.simantics.district.network.ModelledCRS;
  27 import org.simantics.district.network.ontology.DistrictNetworkResource;
  28 import org.simantics.district.network.ui.NetworkDrawingParticipant;
  29 import org.simantics.g2d.canvas.Hints;
  30 import org.simantics.g2d.canvas.ICanvasContext;
  31 import org.simantics.g2d.canvas.IToolMode;
  32 import org.simantics.g2d.diagram.IDiagram;
  33 import org.simantics.maps.elevation.server.SingletonTiffTileInterface;
  34 import org.simantics.maps.elevation.server.prefs.MapsElevationServerPreferences;
  35 import org.simantics.scenegraph.g2d.G2DNode;
  36 import org.simantics.scenegraph.g2d.events.EventTypes;
  37 import org.simantics.scenegraph.g2d.events.KeyEvent.KeyPressedEvent;
  38 import org.simantics.scenegraph.g2d.events.MouseEvent;
  39 import org.simantics.scenegraph.g2d.events.MouseEvent.MouseClickEvent;
  40 import org.simantics.scenegraph.g2d.events.MouseEvent.MouseDoubleClickedEvent;
  41 import org.simantics.scenegraph.g2d.events.MouseEvent.MouseMovedEvent;
  42 import org.simantics.scenegraph.utils.GeometryUtils;
  43 import org.simantics.scenegraph.utils.NodeUtil;
  44 import org.simantics.utils.threads.ThreadUtils;
  45 import org.slf4j.Logger;
  46 import org.slf4j.LoggerFactory;
  47
  48 public class NetworkDrawingNode extends G2DNode {
  49
  50     private static final Logger LOGGER = LoggerFactory.getLogger(NetworkDrawingNode.class);
  51
  52     static class DrawingNode {
  53
  54         private List<Point2D> routeNodes = new ArrayList<>();
  55     }
  56
  57     private static final long serialVersionUID = -3475301184009620573L;
  58
  59     private Point2D currentMousePos = null;
  60
  61     private List<DrawingNode> nodes = new ArrayList<>();
  62     private DrawingNode currentRouteNode = null;
  63
  64     private Resource diagramResource;
  65
  66     private NetworkDrawingParticipant participant;
  67
  68     private IDiagram diagram;
  69
  70     private static final Stroke DASHED_STROKE = new BasicStroke(2.0f,
  71             BasicStroke.CAP_ROUND,
  72             BasicStroke.JOIN_ROUND,
  73             4.0f, new float[]{4.0f}, 0.0f);
  74
  75     private static final Color BLUE_ALPHA = new Color(0, 0, 255, 100);
  76     private static final Color RED_ALPHA = new Color(255, 0, 0, 100);
  77
  78     private boolean scaleStroke = true;
  79
  80     @Override
  81     public void init() {
  82         super.init();
  83         addEventHandler(this);
  84     }
  85
  86     public void setNetworkDrawingParticipant(NetworkDrawingParticipant participant) {
  87         this.participant = participant;
  88     }
  89
  90     public void setDiagram(IDiagram diagram) {
  91         if (diagram != null) {
  92             this.diagram = diagram;
  93             this.diagramResource = diagram.getHint(DiagramModelHints.KEY_DIAGRAM_RESOURCE);
  94         }
  95     }
  96
  97     @Override
  98     public void render(Graphics2D g2d) {
  99         if (nodes.isEmpty())
 100             return;
 101
 102         Color old = g2d.getColor();
 103         Stroke oldStroke = g2d.getStroke();
 104
 105         Iterator<DrawingNode> dnodeIterator = nodes.iterator();
 106         while (dnodeIterator.hasNext()) {
 107             Path2D path = new Path2D.Double();
 108             DrawingNode dnode = dnodeIterator.next();
 109             Iterator<Point2D> nodeIter = dnode.routeNodes.iterator();
 110             if (nodeIter.hasNext()) {
 111                 Point2D node = nodeIter.next();
 112                 path.moveTo(node.getX(), node.getY());
 113             }
 114             while (nodeIter.hasNext()) {
 115                 Point2D node = nodeIter.next();
 116                 path.lineTo(node.getX(), node.getY());
 117             }
 118             if (!dnodeIterator.hasNext()) {
 119                 if (currentMousePos != null)
 120                     path.lineTo(currentMousePos.getX(), currentMousePos.getY());
 121             }
 122
 123             if (DASHED_STROKE != null) {
 124                 if (scaleStroke && DASHED_STROKE instanceof BasicStroke) {
 125                     BasicStroke bs = GeometryUtils.scaleStroke(DASHED_STROKE, (float) (1.0 / GeometryUtils.getScale(g2d.getTransform())));
 126                     g2d.setStroke(bs);
 127                 } else {
 128                     g2d.setStroke(DASHED_STROKE);
 129                 }
 130             }
 131
 132             g2d.setColor(BLUE_ALPHA);
 133             g2d.draw(path);
 134
 135             g2d.setColor(RED_ALPHA);
 136             BasicStroke stroke = GeometryUtils.scaleStroke(DASHED_STROKE, (float) (1.0 / GeometryUtils.getScale(g2d.getTransform())));
 137             g2d.setStroke(stroke);
 138             Point2D currentPoint = path.getCurrentPoint();
 139             g2d.draw(new Rectangle2D.Double(currentPoint.getX() - 0.0001 / 2, currentPoint.getY() - 0.0001 / 2, 0.0001, 0.0001));
 140         }
 141
 142         g2d.setStroke(oldStroke);
 143         g2d.setColor(old);
 144     }
 145
 146     @Override
 147     public Rectangle2D getBoundsInLocal() {
 148         return null;
 149     }
 150
 151     @Override
 152     public int getEventMask() {
 153         return EventTypes.AnyMask;
 154     }
 155
 156     @Override
 157     protected boolean mouseDoubleClicked(MouseDoubleClickedEvent e) {
 158         // nodes to path2d
 159         IToolMode mode = getToolMode();
 160         if (mode == Hints.CONNECTTOOL || e.hasAnyModifier(MouseEvent.ALT_MASK | MouseEvent.ALT_GRAPH_MASK)) {
 161             // ok, new routenode starts from here
 162             Point2D localPos = NodeUtil.worldToLocal(this, e.controlPosition, new Point2D.Double());
 163             Point2D.Double pos = new Point2D.Double(localPos.getX(), localPos.getY());
 164             if (currentRouteNode != null) {
 165                 //currentRouteNode.routeNodes.add(pos);
 166                 currentRouteNode = new DrawingNode();
 167                 currentRouteNode.routeNodes.add(pos);
 168                 nodes.add(currentRouteNode);
 169             } else {
 170                 // ok, this must be creation of dh_point
 171                 double scale = getTransform().getScaleY();
 172                 double x = ModelledCRS.xToLongitude(pos.getX() / scale);
 173                 double y = ModelledCRS.yToLatitude(-pos.getY() / scale);
 174
 175                 double elevation = 0;
 176                 if (MapsElevationServerPreferences.useElevationServer()) {
 177                     // ok! we use new elevation API to resolve possible elevations for the starting points
 178                     try {
 179                         elevation = SingletonTiffTileInterface.lookup(x, y).doubleValue();
 180                     } catch (Exception ee) {
 181                         LOGGER.error("Could not get elevation from tiff interface", ee);
 182                     }
 183                 }
 184                 final double felevation = elevation;
 185
 186                 boolean leftButton = e.button == MouseEvent.LEFT_BUTTON;
 187
 188                 ThreadUtils.getNonBlockingWorkExecutor().schedule(() -> {
 189                     Simantics.getSession().asyncRequest(new Write() {
 190
 191                         @Override
 192                         public void perform(WriteGraph graph) throws DatabaseException {
 193                             graph.markUndoPoint();
 194                             Resource mapping = null;
 195                             if (leftButton) {
 196                                 mapping = graph.getSingleObject(diagramResource, DistrictNetworkResource.getInstance(graph).LeftClickDefaultMapping);
 197                             } else {
 198                                 mapping = graph.getSingleObject(diagramResource, DistrictNetworkResource.getInstance(graph).RightClickDefaultMapping);
 199                             }
 200                             if (mapping == null) {
 201                                 mapping = graph.getSingleObject(diagramResource, DistrictNetworkResource.getInstance(graph).VertexDefaultMapping);
 202                             }
 203                             DistrictNetworkUtil.createVertex(graph, diagramResource, new double[] { x, y }, felevation, mapping);
 204                         }
 205                     });
 206                 }, 100, TimeUnit.MILLISECONDS);
 207             }
 208             repaint();
 209             return true;
 210         }
 211         return super.mouseDoubleClicked(e);
 212     }
 213
 214     private void createEdge(DrawingNode node) {
 215
 216         Point2D start = node.routeNodes.get(0);
 217         Point2D end = node.routeNodes.get(node.routeNodes.size() - 1);
 218
 219         double currentPadding = DistrictNetworkVertexNode.width;
 220         AffineTransform test = getTransform();
 221         ICanvasContext ctx = DiagramNodeUtil.getCanvasContext(this);
 222         AffineTransform tr = ctx.getHintStack().getHint(Hints.KEY_CANVAS_TRANSFORM);
 223         AffineTransform testing = new AffineTransform(tr);
 224         testing.concatenate(test);
 225         double calculateScaleRecip = DistrictNetworkNodeUtils.calculateScaleRecip(testing);
 226         double padding = currentPadding * calculateScaleRecip;
 227         /*
 228          *  To convert y-coordinates to map coordinates in ruler, use:
 229          *    double val = (y-offsetY)/scaleY;
 230          *    val = Math.toDegrees(Math.atan(Math.sinh(Math.toRadians(val))));
 231          *    String str = formatValue(val);
 232          */
 233         // TODO: fix scale
 234         double scaleY = getTransform().getScaleY();
 235         double scaleX = getTransform().getScaleX();
 236
 237         double startLat = ModelledCRS.yToLatitude(-start.getY() / scaleY);
 238         double startLon = ModelledCRS.xToLongitude(start.getX() / scaleX);
 239
 240         double endLat = ModelledCRS.yToLatitude(-end.getY() / scaleY);
 241         double endLon = ModelledCRS.xToLongitude(end.getX() / scaleX);
 242
 243         double[] startCoords = new double[] { startLon, startLat };
 244         double[] endCoords = new double[] { endLon, endLat };
 245
 246         double[] detailedGeometryCoords = new double[node.routeNodes.size() * 2];
 247         int i = 0;
 248         for (Point2D p : node.routeNodes) {
 249             double lat = ModelledCRS.yToLatitude(-p.getY() / scaleY);
 250             double lon = ModelledCRS.xToLongitude(p.getX() / scaleX);
 251             detailedGeometryCoords[i++] = lon;
 252             detailedGeometryCoords[i++] = lat;
 253         }
 254
 255         double startElevation = 0;
 256         double endElevation = 0;
 257         if (MapsElevationServerPreferences.useElevationServer()) {
 258             // ok! we use new elevation API to resolve possible elevations for the starting points
 259             try {
 260                 startElevation = SingletonTiffTileInterface.lookup(startLat, startLon).doubleValue();
 261                 endElevation = SingletonTiffTileInterface.lookup(endLat, endLon).doubleValue();
 262             } catch (Exception e) {
 263                 LOGGER.error("Could not get elevation from tiff interface", e);
 264             }
 265         }
 266         final double se = startElevation;
 267         final double ee = endElevation;
 268         DNEdgeBuilder builder = new DNEdgeBuilder(diagramResource, diagram);
 269         Simantics.getSession().asyncRequest(new WriteRequest() {
 270
 271             @Override
 272             public void perform(WriteGraph graph) throws DatabaseException {
 273                 builder.create(graph, startCoords, se, endCoords, ee, detailedGeometryCoords, padding);
 274             }
 275         });
 276
 277     }
 278
 279     @Override
 280     protected boolean mouseClicked(MouseClickEvent e) {
 281         // check ToolMode
 282         IToolMode mode = getToolMode();
 283         if (mode == Hints.CONNECTTOOL || e.hasAnyModifier(MouseEvent.ALT_MASK | MouseEvent.ALT_GRAPH_MASK)) {
 284             if (e.button == MouseEvent.RIGHT_BUTTON && !nodes.isEmpty()) {
 285                 nodes.remove(nodes.size() - 1);
 286             } else if (e.button == MouseEvent.LEFT_BUTTON) {
 287                 Point2D localPos = NodeUtil.worldToLocal(this, e.controlPosition, new Point2D.Double());
 288                 if (currentRouteNode == null && canStartEdge(localPos)) {
 289                     // ok, we can start from here
 290                     currentRouteNode = new DrawingNode();
 291                     currentRouteNode.routeNodes.add(new Point2D.Double(localPos.getX(), localPos.getY()));
 292                     nodes.add(currentRouteNode);
 293                 } else if (currentRouteNode != null && canStartEdge(localPos)) {
 294                     // let's commit our new routenode
 295                     currentRouteNode.routeNodes.add(new Point2D.Double(localPos.getX(), localPos.getY()));
 296                     Iterator<DrawingNode> nodeIter = nodes.iterator();
 297                     while (nodeIter.hasNext()) {
 298                         createEdge(nodeIter.next());
 299                     }
 300                     currentRouteNode = null;
 301                     nodes.clear();
 302                 } else if (currentRouteNode != null) {
 303                     currentRouteNode.routeNodes.add(new Point2D.Double(localPos.getX(), localPos.getY()));
 304                 }
 305             }
 306             repaint();
 307             return true;
 308         }
 309         return super.mouseClicked(e);
 310     }
 311
 312     private boolean canStartEdge(Point2D currentPos) {
 313         return participant.isHoveringOverNode(currentPos);
 314     }
 315
 316     private IToolMode getToolMode() {
 317         return participant.getHint(Hints.KEY_TOOL);
 318     }
 319
 320     @Override
 321     protected boolean mouseMoved(MouseMovedEvent e) {
 322         IToolMode mode = getToolMode();
 323         boolean repaint = false;
 324         Point2D p = NodeUtil.worldToLocal(this, e.controlPosition, new Point2D.Double());
 325         boolean isConnectionTool = mode == Hints.CONNECTTOOL || e.hasAnyModifier(MouseEvent.ALT_MASK | MouseEvent.ALT_GRAPH_MASK);
 326         if (participant.pickHoveredElement(p, isConnectionTool)) {
 327             repaint = true;
 328         }
 329         if (!nodes.isEmpty()) {
 330             currentMousePos = p;
 331
 332             repaint();
 333             return true;
 334         }
 335         currentMousePos = null;
 336         if (repaint == true)
 337             repaint();
 338         return super.mouseMoved(e);
 339     }
 340
 341     @Override
 342     protected boolean keyPressed(KeyPressedEvent e) {
 343         if (e.keyCode == java.awt.event.KeyEvent.VK_ESCAPE) {
 344             currentRouteNode = null;
 345             nodes.clear();
 346             repaint();
 347             return true;
 348         }
 349         return super.keyPressed(e);
 350
 351     }
 352 }