org.simantics.district.network.ui/src/org/simantics/district/network/ui/contributions/ChangeRoutePointToVertexHandler.java

   1 package org.simantics.district.network.ui.contributions;
   2
   3 import java.awt.geom.AffineTransform;
   4 import java.awt.geom.NoninvertibleTransformException;
   5 import java.awt.geom.Point2D;
   6 import java.lang.reflect.InvocationTargetException;
   7 import java.util.List;
   8 import java.util.Optional;
   9 import java.util.concurrent.TimeUnit;
  10
  11 import javax.inject.Named;
  12
  13 import org.eclipse.core.commands.ParameterizedCommand;
  14 import org.eclipse.e4.core.di.annotations.CanExecute;
  15 import org.eclipse.e4.core.di.annotations.Execute;
  16 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  17 import org.eclipse.e4.ui.services.IServiceConstants;
  18 import org.eclipse.jface.viewers.ISelection;
  19 import org.eclipse.ui.IEditorPart;
  20 import org.simantics.Simantics;
  21 import org.simantics.databoard.Bindings;
  22 import org.simantics.db.ReadGraph;
  23 import org.simantics.db.Resource;
  24 import org.simantics.db.WriteGraph;
  25 import org.simantics.db.common.request.ReadRequest;
  26 import org.simantics.db.common.request.WriteRequest;
  27 import org.simantics.db.exception.DatabaseException;
  28 import org.simantics.db.layer0.SelectionHints;
  29 import org.simantics.db.layer0.util.RemoverUtil;
  30 import org.simantics.db.request.Read;
  31 import org.simantics.diagram.stubs.DiagramResource;
  32 import org.simantics.district.network.DistrictNetworkUtil;
  33 import org.simantics.district.network.ModelledCRS;
  34 import org.simantics.district.network.ontology.DistrictNetworkResource;
  35 import org.simantics.district.network.ui.DNEdgeBuilder;
  36 import org.simantics.district.network.ui.DistrictDiagramEditor;
  37 import org.simantics.district.network.ui.NetworkDrawingParticipant;
  38 import org.simantics.g2d.canvas.ICanvasContext;
  39 import org.simantics.g2d.participant.MouseUtil;
  40 import org.simantics.g2d.participant.MouseUtil.MouseInfo;
  41 import org.simantics.maps.elevation.server.SingletonTiffTileInterface;
  42 import org.simantics.maps.elevation.server.prefs.MapsElevationServerPreferences;
  43 import org.simantics.ui.workbench.e4.E4WorkbenchUtils;
  44 import org.simantics.utils.threads.ThreadUtils;
  45 import org.simantics.utils.ui.ISelectionUtils;
  46 import org.slf4j.Logger;
  47 import org.slf4j.LoggerFactory;
  48
  49 public class ChangeRoutePointToVertexHandler {
  50
  51     private static final Logger LOGGER = LoggerFactory.getLogger(ChangeRoutePointToVertexHandler.class);
  52     static List<Resource> elements;
  53     static boolean cut = true;
  54
  55     @CanExecute
  56     public boolean canExecute(@Named(IServiceConstants.ACTIVE_SELECTION) ISelection selection) {
  57         List<Resource> elements = ISelectionUtils.getPossibleKeys(selection, SelectionHints.KEY_MAIN, Resource.class);
  58         if (elements.size() != 1)
  59             return false;
  60         try {
  61             return Simantics.getSession().syncRequest(new Read<Boolean>() {
  62
  63                 @Override
  64                 public Boolean perform(ReadGraph graph) throws DatabaseException {
  65                     DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
  66                     for (Resource selection : elements) {
  67                         if (!graph.isInstanceOf(selection, DN.Edge)) {
  68                             return false;
  69                         }
  70                     }
  71                     return true;
  72                 }
  73             });
  74         } catch (DatabaseException e) {
  75             LOGGER.error("Could not evaluate if mapping can be changed for selection {}", elements, e);
  76             return false;
  77         }
  78     }
  79
  80     @Execute
  81     public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart mActiveEditorPart, @Named(IServiceConstants.ACTIVE_SELECTION) Object selection, ParameterizedCommand command) {
  82         final List<Resource> elements = ISelectionUtils.getPossibleKeys(selection, SelectionHints.KEY_MAIN, Resource.class);
  83
  84         Resource edge = elements.get(0);
  85         try {
  86             Point2D mouseClicked = mouseClickedOnEditor(mActiveEditorPart);
  87             if (mouseClicked != null) {
  88
  89                 IEditorPart activeEditorPart = E4WorkbenchUtils.getActiveIEditorPart(mActiveEditorPart);
  90                 if (activeEditorPart == null)
  91                     return;
  92                 if (!(activeEditorPart instanceof DistrictDiagramEditor))
  93                     return;
  94                 DistrictDiagramEditor editor = (DistrictDiagramEditor) activeEditorPart;
  95                 Resource diagram = editor.getInputResource();
  96
  97                 Simantics.getSession().asyncRequest(new ReadRequest() {
  98
  99                     @Override
 100                     public void run(ReadGraph graph) throws DatabaseException {
 101                         DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 102                         double[] detailedGeom = graph.getPossibleRelatedValue(edge, DN.Edge_HasGeometry, Bindings.DOUBLE_ARRAY);
 103                         if (detailedGeom != null) {
 104                             double closestDistance = Double.MAX_VALUE;
 105                             Point2D closestPoint = null;
 106                             int j = 0;
 107                             for (int i = 0; i < detailedGeom.length; i += 2) {
 108                                 double x = detailedGeom[i];
 109                                 double y = detailedGeom[i + 1];
 110                                 Point2D currentPoint = new Point2D.Double(x, y);
 111                                 double currentDistance = mouseClicked.distance(currentPoint);
 112                                 if (currentDistance < closestDistance) {
 113                                     closestDistance = currentDistance;
 114                                     closestPoint = currentPoint;
 115                                     j = i;
 116                                 }
 117                             }
 118
 119                             final Point2D finalClosestPoint = closestPoint;
 120
 121                             DiagramResource DIA = DiagramResource.getInstance(graph);
 122                             Resource currentStartVertex = graph.getSingleObject(edge, DN.HasStartVertex);
 123                             double[] currentStartVertexCoords = graph.getRelatedValue(currentStartVertex, DIA.HasLocation, Bindings.DOUBLE_ARRAY);
 124                             Resource currentEndVertex = graph.getSingleObject(edge, DN.HasEndVertex);
 125                             double[] currentEndVertexCoords = graph.getRelatedValue(currentEndVertex, DIA.HasLocation, Bindings.DOUBLE_ARRAY);
 126
 127                             double[] detailedLeftEdgeGeometryCoords = new double[j];
 128                             for (int k = 0; k < j; k += 2) {
 129                                 double x = detailedGeom[k];
 130                                 double y = detailedGeom[k + 1];
 131                                 detailedLeftEdgeGeometryCoords[k] = x;
 132                                 detailedLeftEdgeGeometryCoords[k + 1] = y;
 133                             }
 134
 135                             double[] detailedRightEdgeGeometryCoords = new double[detailedGeom.length - j - 2];
 136                             int i = 0;
 137                             for (int k = j + 2; k < detailedGeom.length; k += 2) {
 138                                 double x = detailedGeom[k];
 139                                 double y = detailedGeom[k + 1];
 140                                 detailedRightEdgeGeometryCoords[i++] = x;
 141                                 detailedRightEdgeGeometryCoords[i++] = y;
 142                             }
 143
 144                             Simantics.getSession().asyncRequest(new WriteRequest() {
 145
 146                                 @Override
 147                                 public void perform(WriteGraph graph) throws DatabaseException {
 148                                     RemoverUtil.remove(graph, edge);
 149
 150                                     ThreadUtils.getNonBlockingWorkExecutor().schedule(() -> {
 151                                         Simantics.getSession().asyncRequest(new WriteRequest() {
 152
 153                                             @Override
 154                                             public void perform(WriteGraph graph) throws DatabaseException {
 155                                                 // we might have closest point
 156                                                 if (finalClosestPoint != null) {
 157                                                     Resource mapping = graph.getSingleObject(diagram, DistrictNetworkResource.getInstance(graph).VertexDefaultMapping);
 158                                                     double x = finalClosestPoint.getX();
 159                                                     double y = finalClosestPoint.getY();
 160                                                     double[] midVertexCoords = new double[] { x, y };
 161
 162                                                     double elevation = 0;
 163                                                     if (MapsElevationServerPreferences.useElevationServer()) {
 164                                                         // ok! we use new elevation API to resolve possible elevations for the starting points
 165                                                         try {
 166                                                             elevation = SingletonTiffTileInterface.lookup(x, y).doubleValue();
 167                                                         } catch (Exception ee) {
 168                                                             LOGGER.error("Could not get elevation from tiff interface", ee);
 169                                                         }
 170                                                     }
 171
 172                                                     Resource createdVertex = DistrictNetworkUtil.createVertex(graph, diagram, midVertexCoords, elevation, mapping);
 173
 174                                                     Optional<Resource> leftEdge = DNEdgeBuilder.create(graph, diagram, currentStartVertexCoords, 0, midVertexCoords, 0, detailedLeftEdgeGeometryCoords, 0.001);
 175                                                     Optional<Resource> rightEdge = DNEdgeBuilder.create(graph, diagram, midVertexCoords, 0, currentEndVertexCoords, 0, detailedRightEdgeGeometryCoords, 0.001);
 176
 177                                                 }
 178                                             }
 179                                         });
 180                                     }, 500, TimeUnit.MILLISECONDS);
 181
 182                                 }
 183                             });
 184
 185                         } else {
 186                             // no can do - or it would be possible to split the edge here in to two different edges
 187                         }
 188                     }
 189                 });
 190             } else {
 191                 LOGGER.warn("No mouseClicked for editor {}", mActiveEditorPart);
 192             }
 193         } catch (InvocationTargetException e) {
 194             LOGGER.error("Could not change route point to vertex", e);
 195         }
 196     }
 197
 198     private static Point2D mouseClickedOnEditor(MPart mActiveEditorPart) throws InvocationTargetException {
 199         IEditorPart activeEditorPart = E4WorkbenchUtils.getActiveIEditorPart(mActiveEditorPart);
 200         if (activeEditorPart == null)
 201             return null;
 202         if (!(activeEditorPart instanceof DistrictDiagramEditor))
 203             return null;
 204         DistrictDiagramEditor editor = (DistrictDiagramEditor) activeEditorPart;
 205
 206         ICanvasContext ctx = editor.getAdapter(ICanvasContext.class);
 207         NetworkDrawingParticipant drawingParticipant = ctx.getAtMostOneItemOfClass(NetworkDrawingParticipant.class);
 208         AffineTransform drawingTransform = drawingParticipant.getTransform();
 209         MouseUtil util = ctx.getAtMostOneItemOfClass(MouseUtil.class);
 210         MouseInfo mouseInfo = util.getMousePressedInfo(0);
 211         if (mouseInfo == null) {
 212             return null;
 213         }
 214         Point2D canvasPosition = mouseInfo.canvasPosition;
 215         Point2D transformed = null;
 216         try {
 217             transformed = drawingTransform.inverseTransform(canvasPosition, new Point2D.Double());
 218         } catch (NoninvertibleTransformException e) {
 219             LOGGER.error("Could not create inverse transform of {}", drawingTransform, e);
 220             throw new InvocationTargetException(e);
 221         }
 222         double x = ModelledCRS.xToLongitude(transformed.getX());
 223         double y = ModelledCRS.yToLatitude(-transformed.getY());
 224         return new Point2D.Double(x, y);
 225     }
 226 }