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                 boolean leftButton = e.button == MouseEvent.LEFT_BUTTON;
 176
 177                 ThreadUtils.getNonBlockingWorkExecutor().schedule(() -> {
 178                     Simantics.getSession().asyncRequest(new Write() {
 179
 180                         @Override
 181                         public void perform(WriteGraph graph) throws DatabaseException {
 182                             graph.markUndoPoint();
 183                             Resource mapping = null;
 184                             if (leftButton) {
 185                                 mapping = graph.getSingleObject(diagramResource, DistrictNetworkResource.getInstance(graph).LeftClickDefaultMapping);
 186                             } else {
 187                                 mapping = graph.getSingleObject(diagramResource, DistrictNetworkResource.getInstance(graph).RightClickDefaultMapping);
 188                             }
 189                             if (mapping == null) {
 190                                 mapping = graph.getSingleObject(diagramResource, DistrictNetworkResource.getInstance(graph).VertexDefaultMapping);
 191                             }
 192                             DistrictNetworkUtil.createVertex(graph, diagramResource, new double[] { x, y }, Double.MAX_VALUE, mapping);
 193                         }
 194                     });
 195                 }, 100, TimeUnit.MILLISECONDS);
 196             }
 197             repaint();
 198             return true;
 199         }
 200         return super.mouseDoubleClicked(e);
 201     }
 202
 203     private void createEdge(DrawingNode node) {
 204
 205         Point2D start = node.routeNodes.get(0);
 206         Point2D end = node.routeNodes.get(node.routeNodes.size() - 1);
 207
 208         double currentPadding = DistrictNetworkVertexNode.width;
 209         AffineTransform test = getTransform();
 210         ICanvasContext ctx = DiagramNodeUtil.getCanvasContext(this);
 211         AffineTransform tr = ctx.getHintStack().getHint(Hints.KEY_CANVAS_TRANSFORM);
 212         AffineTransform testing = new AffineTransform(tr);
 213         testing.concatenate(test);
 214         double calculateScaleRecip = DistrictNetworkNodeUtils.calculateScaleRecip(testing);
 215         double padding = currentPadding * calculateScaleRecip;
 216         /*
 217          *  To convert y-coordinates to map coordinates in ruler, use:
 218          *    double val = (y-offsetY)/scaleY;
 219          *    val = Math.toDegrees(Math.atan(Math.sinh(Math.toRadians(val))));
 220          *    String str = formatValue(val);
 221          */
 222         // TODO: fix scale
 223         double scaleY = getTransform().getScaleY();
 224         double scaleX = getTransform().getScaleX();
 225
 226         double startLat = ModelledCRS.yToLatitude(-start.getY() / scaleY);
 227         double startLon = ModelledCRS.xToLongitude(start.getX() / scaleX);
 228
 229         double endLat = ModelledCRS.yToLatitude(-end.getY() / scaleY);
 230         double endLon = ModelledCRS.xToLongitude(end.getX() / scaleX);
 231
 232         double[] startCoords = new double[] { startLon, startLat };
 233         double[] endCoords = new double[] { endLon, endLat };
 234
 235         double[] detailedGeometryCoords = new double[node.routeNodes.size() * 2];
 236         int i = 0;
 237         for (Point2D p : node.routeNodes) {
 238             double lat = ModelledCRS.yToLatitude(-p.getY() / scaleY);
 239             double lon = ModelledCRS.xToLongitude(p.getX() / scaleX);
 240             detailedGeometryCoords[i++] = lon;
 241             detailedGeometryCoords[i++] = lat;
 242         }
 243
 244         DNEdgeBuilder builder = new DNEdgeBuilder(diagramResource, diagram);
 245         Simantics.getSession().asyncRequest(new WriteRequest() {
 246
 247             @Override
 248             public void perform(WriteGraph graph) throws DatabaseException {
 249                 builder.create(graph, startCoords, Double.MAX_VALUE, endCoords, Double.MAX_VALUE, detailedGeometryCoords, padding);
 250             }
 251         });
 252
 253     }
 254
 255     @Override
 256     protected boolean mouseClicked(MouseClickEvent e) {
 257         // check ToolMode
 258         IToolMode mode = getToolMode();
 259         if (mode == Hints.CONNECTTOOL || e.hasAnyModifier(MouseEvent.ALT_MASK | MouseEvent.ALT_GRAPH_MASK)) {
 260             if (e.button == MouseEvent.RIGHT_BUTTON && !nodes.isEmpty()) {
 261                 nodes.remove(nodes.size() - 1);
 262             } else if (e.button == MouseEvent.LEFT_BUTTON) {
 263                 Point2D localPos = NodeUtil.worldToLocal(this, e.controlPosition, new Point2D.Double());
 264                 if (currentRouteNode == null && canStartEdge(localPos)) {
 265                     // ok, we can start from here
 266                     currentRouteNode = new DrawingNode();
 267                     currentRouteNode.routeNodes.add(new Point2D.Double(localPos.getX(), localPos.getY()));
 268                     nodes.add(currentRouteNode);
 269                 } else if (currentRouteNode != null && canStartEdge(localPos)) {
 270                     // let's commit our new routenode
 271                     currentRouteNode.routeNodes.add(new Point2D.Double(localPos.getX(), localPos.getY()));
 272                     Iterator<DrawingNode> nodeIter = nodes.iterator();
 273                     while (nodeIter.hasNext()) {
 274                         createEdge(nodeIter.next());
 275                     }
 276                     currentRouteNode = null;
 277                     nodes.clear();
 278                 } else if (currentRouteNode != null) {
 279                     currentRouteNode.routeNodes.add(new Point2D.Double(localPos.getX(), localPos.getY()));
 280                 }
 281             }
 282             repaint();
 283             return true;
 284         }
 285         return super.mouseClicked(e);
 286     }
 287
 288     private boolean canStartEdge(Point2D currentPos) {
 289         return participant.isHoveringOverNode(currentPos);
 290     }
 291
 292     private IToolMode getToolMode() {
 293         return participant.getHint(Hints.KEY_TOOL);
 294     }
 295
 296     @Override
 297     protected boolean mouseMoved(MouseMovedEvent e) {
 298         IToolMode mode = getToolMode();
 299         boolean repaint = false;
 300         Point2D p = NodeUtil.worldToLocal(this, e.controlPosition, new Point2D.Double());
 301         boolean isConnectionTool = mode == Hints.CONNECTTOOL || e.hasAnyModifier(MouseEvent.ALT_MASK | MouseEvent.ALT_GRAPH_MASK);
 302         // To boost pan perf hovering is only considered if no mouse button is pressed)
 303         if (e.buttons == 0 && participant.pickHoveredElement(p, isConnectionTool)) {
 304             repaint = true;
 305         }
 306         if (!nodes.isEmpty()) {
 307             currentMousePos = p;
 308
 309             repaint();
 310             return true;
 311         }
 312         currentMousePos = null;
 313         if (repaint == true)
 314             repaint();
 315         return super.mouseMoved(e);
 316     }
 317
 318     @Override
 319     protected boolean keyPressed(KeyPressedEvent e) {
 320         if (e.keyCode == java.awt.event.KeyEvent.VK_ESCAPE) {
 321             currentRouteNode = null;
 322             nodes.clear();
 323             repaint();
 324             return true;
 325         }
 326         return super.keyPressed(e);
 327
 328     }
 329 }