org.simantics.district.network.ui/src/org/simantics/district/network/ui/DistrictDiagramViewer.java

   1 package org.simantics.district.network.ui;
   2
   3 import java.awt.Color;
   4 import java.awt.geom.AffineTransform;
   5 import java.util.Collections;
   6 import java.util.Map;
   7 import java.util.Objects;
   8 import java.util.concurrent.TimeUnit;
   9 import java.util.function.Consumer;
  10 import java.util.function.Supplier;
  11
  12 import org.simantics.datatypes.literal.RGB;
  13 import org.simantics.db.ReadGraph;
  14 import org.simantics.db.Resource;
  15 import org.simantics.db.common.request.PossibleIndexRoot;
  16 import org.simantics.db.common.request.UnaryRead;
  17 import org.simantics.db.exception.DatabaseException;
  18 import org.simantics.db.procedure.Listener;
  19 import org.simantics.diagram.ui.DiagramModelHints;
  20 import org.simantics.district.network.DistrictNetworkUtil;
  21 import org.simantics.district.network.ontology.DistrictNetworkResource;
  22 import org.simantics.district.network.ui.internal.Activator;
  23 import org.simantics.district.network.ui.nodes.DistrictRenderingPreparationNode;
  24 import org.simantics.district.network.ui.nodes.DistrictSelectionNode;
  25 import org.simantics.district.network.ui.participants.DNPointerInteractor;
  26 import org.simantics.district.network.ui.participants.DynamicVisualisationContributionsParticipant;
  27 import org.simantics.district.network.ui.participants.MapRulerPainter;
  28 import org.simantics.district.network.visualisations.DynamicVisualisations;
  29 import org.simantics.district.network.visualisations.model.ColorBarOptions;
  30 import org.simantics.district.network.visualisations.model.DynamicColorContribution;
  31 import org.simantics.district.network.visualisations.model.DynamicSizeContribution;
  32 import org.simantics.district.network.visualisations.model.SizeBarOptions;
  33 import org.simantics.g2d.canvas.ICanvasContext;
  34 import org.simantics.g2d.canvas.impl.CanvasContext;
  35 import org.simantics.g2d.diagram.DiagramHints;
  36 import org.simantics.g2d.diagram.handler.PickRequest.PickFilter;
  37 import org.simantics.g2d.diagram.participant.DelayedBatchElementPainter;
  38 import org.simantics.g2d.diagram.participant.ElementPainter;
  39 import org.simantics.g2d.diagram.participant.ElementPainterConfiguration;
  40 import org.simantics.g2d.diagram.participant.Selection;
  41 import org.simantics.g2d.diagram.participant.ZOrderHandler;
  42 import org.simantics.g2d.participant.BackgroundPainter;
  43 import org.simantics.g2d.participant.GridPainter;
  44 import org.simantics.g2d.participant.PanZoomRotateHandler;
  45 import org.simantics.g2d.participant.RenderingQualityInteractor;
  46 import org.simantics.g2d.participant.TransformUtil;
  47 import org.simantics.g2d.participant.ZoomToAreaHandler;
  48 import org.simantics.g2d.scenegraph.SceneGraphConstants;
  49 import org.simantics.maps.MapScalingTransform;
  50 import org.simantics.maps.eclipse.MapPainter;
  51 import org.simantics.maps.sg.commands.MapCommands;
  52 import org.simantics.modeling.ui.diagramEditor.DiagramViewer;
  53 import org.simantics.scenegraph.g2d.G2DParentNode;
  54 import org.simantics.scenegraph.g2d.events.command.Command;
  55 import org.simantics.scenegraph.g2d.events.command.CommandEvent;
  56 import org.simantics.scenegraph.g2d.events.command.Commands;
  57 import org.simantics.utils.datastructures.hints.IHintContext;
  58 import org.simantics.utils.datastructures.hints.IHintContext.Key;
  59 import org.simantics.utils.datastructures.hints.IHintContext.KeyOf;
  60 import org.slf4j.Logger;
  61 import org.slf4j.LoggerFactory;
  62
  63 public class DistrictDiagramViewer extends DiagramViewer {
  64
  65         private static final Logger LOGGER = LoggerFactory.getLogger(DistrictDiagramViewer.class);
  66
  67     @Override
  68     protected void addDiagramParticipants(ICanvasContext ctx) {
  69         ctx.add(new ZOrderHandler());
  70         ctx.add(new Selection());
  71         ctx.add(new ElementPainter(new ElementPainterConfiguration().selectionNodeClass(DistrictSelectionNode.class)));
  72         ctx.add(new DNPointerInteractor());
  73
  74         AffineTransform tr = new AffineTransform(MapScalingTransform.INSTANCE);
  75         ctx.add(new MapPainter(tr));
  76
  77         DynamicVisualisationContributionsParticipant dynamicVisualisationContributionsParticipant = new DynamicVisualisationContributionsParticipant(tr);
  78         ctx.add(new NetworkDrawingParticipant(dynamicVisualisationContributionsParticipant, tr));
  79         ctx.add(dynamicVisualisationContributionsParticipant);
  80
  81         // Optimize AffineTransform memory allocations during district diagram rendering
  82         G2DParentNode spatialRoot = (G2DParentNode) ctx.getSceneGraph().lookupNode(SceneGraphConstants.SPATIAL_ROOT_NODE_ID);
  83         DistrictRenderingPreparationNode prepNode = new DistrictRenderingPreparationNode();
  84         prepNode.setZIndex(Integer.MIN_VALUE / 2);
  85         spatialRoot.addNode("districtRenderingPrepareNode", prepNode);
  86     }
  87
  88     protected String getPopupId() {
  89         return "#DistrictDiagramPopup";
  90     }
  91
  92     @Override
  93     protected void fillInitialDiagramHints(Resource diagram, IHintContext initialHints) throws DatabaseException {
  94         super.fillInitialDiagramHints(diagram, initialHints);
  95
  96     }
  97
  98     @Override
  99     public void initializeCanvasContext(CanvasContext ctx) {
 100         super.initializeCanvasContext(ctx);
 101         IHintContext h = ctx.getDefaultHintContext();
 102         h.setHint(PanZoomRotateHandler.KEY_ZOOM_IN_LIMIT, 10000.0);
 103         h.setHint(PanZoomRotateHandler.KEY_ZOOM_OUT_LIMIT, 0.01);
 104         h.setHint(DiagramModelHints.KEY_DIAGRAM_RESOURCE, diagramResource);
 105         h.removeHint(DiagramHints.SNAP_ADVISOR);
 106     }
 107
 108     @Override
 109     protected void addPainterParticipants(ICanvasContext ctx) {
 110         ctx.add(new RenderingQualityInteractor());
 111         ctx.add(new DelayedBatchElementPainter(PickFilter.FILTER_MONITORS, 500, TimeUnit.MILLISECONDS));
 112     }
 113
 114     @Override
 115     protected void addGridRulerBackgroundParticipants(CanvasContext ctx) {
 116         ctx.add(new GridPainter());
 117         ctx.add(new MapRulerPainter());
 118         ctx.add(new BackgroundPainter());
 119     }
 120
 121     protected void addViewManipulationParticipants(CanvasContext ctx) {
 122         // Let's replace with our special util
 123         TransformUtil util = ctx.getAtMostOneItemOfClass(TransformUtil.class);
 124         if (util != null)
 125             ctx.remove(util);
 126         ctx.add(new DistrictTransformUtil());
 127         ctx.add(new DistrictPanZoomRotateHandler());
 128         //ctx.add(new MousePanZoomInteractor());
 129         //ctx.add(new MultitouchPanZoomRotateInteractor());
 130         // ctx.add( new OrientationRestorer() );
 131         ctx.add(new ZoomToAreaHandler());
 132     }
 133
 134     @Override
 135     protected void loadPageSettings(ICanvasContext ctx) {
 136         super.loadPageSettings(ctx);
 137         // this might be the wrong place to start such listening but at least
 138         // super.loadPageSettings() does async-db-operations
 139         setupDrawMapEnabled();
 140         setupBackgroundColor();
 141         setupColoringObjects();
 142         setupColorBarOptions();
 143         setupSizingObjects();
 144         setupSizeBarOptions();
 145         setupShowElevationServerBoundingBox();
 146
 147         // add listeners
 148         DistrictDiagramViewerListener[] listeners = Activator.getInstance().getDistrictDiagramViewerListeners();
 149         if (listeners != null) {
 150             for (DistrictDiagramViewerListener listener : listeners) {
 151                 listener.diagramLoaded(getRuntime(), canvasContext);
 152             }
 153         }
 154     }
 155
 156     @Override
 157     public void dispose() {
 158         DistrictDiagramViewerListener[] listeners = Activator.getInstance().getDistrictDiagramViewerListeners();
 159         if (listeners != null) {
 160             Resource runtime = getRuntime();
 161             for (DistrictDiagramViewerListener listener : listeners) {
 162                 listener.diagramDisposed(runtime, canvasContext);
 163             }
 164         }
 165         super.dispose();
 166     }
 167
 168     private void setupDrawMapEnabled() {
 169         sessionContext.getSession().asyncRequest(new DrawMapEnabledRequest(getInputResource()), new DrawMapEnabledListener(
 170                 result -> canvasContext.getEventQueue().queueEvent(new CommandEvent(canvasContext, System.currentTimeMillis(), result ? Commands.MAP_ENABLE : Commands.MAP_DISABLE)),
 171                 () -> DistrictDiagramViewer.this.isDisposed()));
 172     }
 173
 174     private void setupBackgroundColor() {
 175         sessionContext.getSession().asyncRequest(new MapBackgroundColorRequest(getInputResource()), new MapBackgroundColorListener(
 176                 result -> queueBackgroundColorChangeEvent(result),
 177                 () -> DistrictDiagramViewer.this.isDisposed()));
 178     }
 179
 180     private void queueBackgroundColorChangeEvent(RGB.Integer result) {
 181         if (result != null) {
 182             Color backgroundColor = new Color(result.red, result.green, result.blue);
 183             canvasContext.getDefaultHintContext().setHint(MapCommands.KEY_MAP_BACKGROUND_COLOR, backgroundColor);
 184             canvasContext.getEventQueue().queueEvent(new CommandEvent(canvasContext, System.currentTimeMillis(), MapCommands.MAP_BACKGROUND_COLOR_CHANGE));
 185         }
 186     }
 187
 188     private void setupColoringObjects() {
 189         sessionContext.getSession().asyncRequest(new ColoringObjectsRequest(getInputResource()), new ColoringObjectsListener(
 190                 result -> queueColoringObjectsChangeEvent(result),
 191                 () -> DistrictDiagramViewer.this.isDisposed()));
 192     }
 193
 194
 195     private void setupColorBarOptions() {
 196         sessionContext.getSession().asyncRequest(new ColorBarOptionsRequest(getInputResource()), new ColorBarOptionsListener(
 197                 result -> queueColorBarOptionsChangeEvent(result),
 198                 () -> DistrictDiagramViewer.this.isDisposed()));
 199     }
 200
 201     private void setupSizingObjects() {
 202         sessionContext.getSession().asyncRequest(new SizingObjectsRequest(getInputResource()), new SizingObjectsListener(
 203                 result -> queueSizingObjectsChangeEvent(result),
 204                 () -> DistrictDiagramViewer.this.isDisposed()));
 205     }
 206
 207     private void setupSizeBarOptions() {
 208         sessionContext.getSession().asyncRequest(new SizeBarOptionsRequest(getInputResource()), new SizeBarOptionsListener(
 209                 result -> queueSizeBarOptionsChangeEvent(result),
 210                 () -> DistrictDiagramViewer.this.isDisposed()));
 211     }
 212
 213     private void setupShowElevationServerBoundingBox() {
 214         sessionContext.getSession().asyncRequest(new ShowElevationServerRequest(getInputResource()), new ShowElevationServerListener(
 215                 result -> queueShowElevationServerChangeEvent(result),
 216                 () -> DistrictDiagramViewer.this.isDisposed()));
 217     }
 218
 219     public static final Key KEY_MAP_COLOR_BAR_OPTIONS = new KeyOf(ColorBarOptions.class, "colorBarOptions");
 220     public static final Command MAP_COLOR_BAR_OPTIONS_CHANGE = new Command("colorBarOptionsChange");
 221     public static final Key KEY_MAP_SIZE_BAR_OPTIONS = new KeyOf(SizeBarOptions.class, "sizeBarOptions");
 222     public static final Command MAP_SIZE_BAR_OPTIONS_CHANGE = new Command("sizeBarOptionsChange");
 223
 224     public static final Key KEY_MAP_COLORING_OBJECTS = new KeyOf(Map.class, "coloringObjects");
 225     public static final Command MAP_COLORING_OBJECTS_CHANGE = new Command("coloringObjectsChange");
 226
 227     public static final Key KEY_MAP_SIZING_OBJECTS = new KeyOf(Map.class, "sizingObjects");
 228     public static final Command MAP_SIZING_OBJECTS_CHANGE = new Command("sizingObjectsChange");
 229
 230     public static final Key KEY_SHOW_ELEVATION_SERVER = new KeyOf(Boolean.class, "showElevationServer");
 231     public static final Command SHOW_ELEVATION_SERVER_CHANGE = new Command("showElevationServerChange");
 232
 233     private void queueColoringObjectsChangeEvent(Map<String, DynamicColorContribution> result) {
 234         queueEventInternal(KEY_MAP_COLORING_OBJECTS, MAP_COLORING_OBJECTS_CHANGE, result);
 235     }
 236
 237     private void queueColorBarOptionsChangeEvent(ColorBarOptions result) {
 238         queueEventInternal(KEY_MAP_COLOR_BAR_OPTIONS, MAP_COLOR_BAR_OPTIONS_CHANGE, result);
 239     }
 240
 241     private void queueSizingObjectsChangeEvent(Map<String, DynamicSizeContribution> result) {
 242         queueEventInternal(KEY_MAP_SIZING_OBJECTS, MAP_SIZING_OBJECTS_CHANGE, result);
 243     }
 244
 245     private void queueSizeBarOptionsChangeEvent(SizeBarOptions result) {
 246         queueEventInternal(KEY_MAP_SIZE_BAR_OPTIONS, MAP_SIZE_BAR_OPTIONS_CHANGE, result);
 247     }
 248
 249     private void queueShowElevationServerChangeEvent(Boolean result) {
 250         queueEventInternal(KEY_SHOW_ELEVATION_SERVER, SHOW_ELEVATION_SERVER_CHANGE, result);
 251     }
 252
 253     private void queueEventInternal(Key key, Command command, Object result) {
 254         if (result != null && !canvasContext.isDisposed()) {
 255             canvasContext.getThreadAccess().asyncExec(() -> {
 256                 canvasContext.getDefaultHintContext().setHint(key, result);
 257                 canvasContext.getEventQueue().queueEvent(new CommandEvent(canvasContext, System.currentTimeMillis(), command));
 258             });
 259         } else {
 260             LOGGER.info("Result is either null or canvasContext is disposed", String.valueOf(result));
 261         }
 262     }
 263
 264     private static class DrawMapEnabledRequest extends UnaryRead<Resource, Boolean> {
 265
 266         public DrawMapEnabledRequest(Resource diagram) {
 267             super(diagram);
 268         }
 269
 270         @Override
 271         public Boolean perform(ReadGraph graph) throws DatabaseException {
 272             return DistrictNetworkUtil.drawMapEnabled(graph, parameter);
 273         }
 274     }
 275
 276     private static class DrawMapEnabledListener implements Listener<Boolean> {
 277
 278         private static final Logger LOGGER = LoggerFactory.getLogger(DrawMapEnabledListener.class);
 279
 280         private Consumer<Boolean> callback;
 281         private Supplier<Boolean> isDisposed;
 282
 283         private Boolean lastResult;
 284
 285         public DrawMapEnabledListener(Consumer<Boolean> callback, Supplier<Boolean> isDisposed) {
 286             this.callback = callback;
 287             this.isDisposed = isDisposed;
 288         }
 289
 290         @Override
 291         public void execute(Boolean result) {
 292             // Minor optimization
 293             if (!Objects.equals(lastResult, result)) {
 294                 lastResult = result;
 295                 callback.accept(result);
 296             }
 297         }
 298
 299         @Override
 300         public void exception(Throwable t) {
 301             LOGGER.error("Could not listen if draw map is enabled", t);
 302         }
 303
 304         @Override
 305         public boolean isDisposed() {
 306             return isDisposed.get();
 307         }
 308     }
 309
 310     private static class MapBackgroundColorRequest extends UnaryRead<Resource, RGB.Integer> {
 311
 312         public MapBackgroundColorRequest(Resource diagram) {
 313             super(diagram);
 314         }
 315
 316         @Override
 317         public RGB.Integer perform(ReadGraph graph) throws DatabaseException {
 318             return DistrictNetworkUtil.backgroundColor(graph, parameter);
 319         }
 320     }
 321
 322     private static class MapBackgroundColorListener implements Listener<RGB.Integer> {
 323
 324         private static final Logger LOGGER = LoggerFactory.getLogger(MapBackgroundColorListener.class);
 325
 326         private Consumer<RGB.Integer> callback;
 327         private Supplier<Boolean> isDisposed;
 328
 329         private RGB.Integer lastResult;
 330
 331         public MapBackgroundColorListener(Consumer<RGB.Integer> callback, Supplier<Boolean> isDisposed) {
 332             this.callback = callback;
 333             this.isDisposed = isDisposed;
 334         }
 335
 336         @Override
 337         public void execute(RGB.Integer result) {
 338             if (!Objects.equals(lastResult, result)) {
 339                 lastResult = result;
 340                 callback.accept(result);
 341             }
 342         }
 343
 344         @Override
 345         public void exception(Throwable t) {
 346             LOGGER.error("Could not listen map background color", t);
 347         }
 348
 349         @Override
 350         public boolean isDisposed() {
 351             return isDisposed.get();
 352         }
 353     }
 354
 355     private static class ColorBarOptionsRequest extends UnaryRead<Resource, ColorBarOptions> {
 356
 357         public ColorBarOptionsRequest(Resource diagram) {
 358             super(diagram);
 359         }
 360
 361         @Override
 362         public ColorBarOptions perform(ReadGraph graph) throws DatabaseException {
 363             DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 364             Resource model = graph.syncRequest(new PossibleIndexRoot(parameter));
 365             if (model != null) {
 366                 Resource vf = DynamicVisualisations.getVisualisationFolder(graph, model);
 367                 if (vf != null) {
 368                     Resource activeVisualisation = graph.getPossibleObject(vf, DN.Diagram_hasActiveVisualisation);
 369                     if (activeVisualisation != null) {
 370                         return DynamicVisualisations.colorBarOptions(graph, activeVisualisation);
 371                     }
 372                 } else {
 373                     LOGGER.debug("No visualisation folder available for model {}", model);
 374                 }
 375             }
 376             return ColorBarOptions.useDefault();
 377         }
 378     }
 379
 380     private static class ColoringObjectsRequest extends UnaryRead<Resource, Map<String,DynamicColorContribution>> {
 381
 382         public ColoringObjectsRequest(Resource diagram) {
 383             super(diagram);
 384         }
 385
 386         @Override
 387         public Map<String, DynamicColorContribution> perform(ReadGraph graph) throws DatabaseException {
 388             DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 389             Resource model = graph.syncRequest(new PossibleIndexRoot(parameter));
 390             if (model != null) {
 391                 Resource vf = DynamicVisualisations.getVisualisationFolder(graph, model);
 392                 if (vf != null) {
 393                     Resource activeVisualisation = graph.getPossibleObject(vf, DN.Diagram_hasActiveVisualisation);
 394                     if (activeVisualisation != null) {
 395                         return DynamicVisualisations.colorContributions(graph, activeVisualisation);
 396                     }
 397                 } else {
 398                     LOGGER.debug("No visualisation folder available for model {}", model);
 399                 }
 400             }
 401             return Collections.emptyMap();
 402         }
 403     }
 404
 405     private static class ColoringObjectsListener implements Listener<Map<String,DynamicColorContribution>> {
 406
 407         private static final Logger LOGGER = LoggerFactory.getLogger(ColoringObjectsListener.class);
 408
 409         private Consumer<Map<String,DynamicColorContribution>> callback;
 410         private Supplier<Boolean> isDisposed;
 411
 412         //private Map<String, DynamicColorContribution> lastResult
 413
 414         public ColoringObjectsListener(Consumer<Map<String,DynamicColorContribution>> callback, Supplier<Boolean> isDisposed) {
 415             this.callback = callback;
 416             this.isDisposed = isDisposed;
 417         }
 418
 419         @Override
 420         public void execute(Map<String,DynamicColorContribution> result) {
 421             callback.accept(result);
 422         }
 423
 424         @Override
 425         public void exception(Throwable t) {
 426             LOGGER.error("Could not listen ColoringObjects", t);
 427         }
 428
 429         @Override
 430         public boolean isDisposed() {
 431             return isDisposed.get();
 432         }
 433     }
 434
 435     private static class ColorBarOptionsListener implements Listener<ColorBarOptions> {
 436
 437         private static final Logger LOGGER = LoggerFactory.getLogger(ColorBarOptionsListener.class);
 438
 439         private Consumer<ColorBarOptions> callback;
 440         private Supplier<Boolean> isDisposed;
 441
 442         public ColorBarOptionsListener(Consumer<ColorBarOptions> callback, Supplier<Boolean> isDisposed) {
 443             this.callback = callback;
 444             this.isDisposed = isDisposed;
 445         }
 446
 447         @Override
 448         public void execute(ColorBarOptions result) {
 449             callback.accept(result);
 450         }
 451
 452         @Override
 453         public void exception(Throwable t) {
 454             LOGGER.error("Could not listen ColorBarOptions", t);
 455         }
 456
 457         @Override
 458         public boolean isDisposed() {
 459             return isDisposed.get();
 460         }
 461     }
 462
 463     private static class SizeBarOptionsRequest extends UnaryRead<Resource, SizeBarOptions> {
 464
 465         public SizeBarOptionsRequest(Resource diagram) {
 466             super(diagram);
 467         }
 468
 469         @Override
 470         public SizeBarOptions perform(ReadGraph graph) throws DatabaseException {
 471             DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 472             Resource model = graph.syncRequest(new PossibleIndexRoot(parameter));
 473             if (model != null) {
 474                 Resource vf = DynamicVisualisations.getVisualisationFolder(graph, model);
 475                 if (vf != null) {
 476                     Resource activeVisualisation = graph.getPossibleObject(vf, DN.Diagram_hasActiveVisualisation);
 477                     if (activeVisualisation != null) {
 478                         return DynamicVisualisations.sizeBarOptions(graph, activeVisualisation);
 479                     }
 480                 } else {
 481                     LOGGER.debug("No visualisation folder available for model {}", model);
 482                 }
 483             }
 484             return SizeBarOptions.useDefault();
 485         }
 486     }
 487
 488     private static class SizeBarOptionsListener implements Listener<SizeBarOptions> {
 489
 490         private static final Logger LOGGER = LoggerFactory.getLogger(SizeBarOptionsListener.class);
 491
 492         private Consumer<SizeBarOptions> callback;
 493         private Supplier<Boolean> isDisposed;
 494
 495         public SizeBarOptionsListener(Consumer<SizeBarOptions> callback, Supplier<Boolean> isDisposed) {
 496             this.callback = callback;
 497             this.isDisposed = isDisposed;
 498         }
 499
 500         @Override
 501         public void execute(SizeBarOptions result) {
 502             callback.accept(result);
 503         }
 504
 505         @Override
 506         public void exception(Throwable t) {
 507             LOGGER.error("Could not listen SizeBarOptions", t);
 508         }
 509
 510         @Override
 511         public boolean isDisposed() {
 512             return isDisposed.get();
 513         }
 514     }
 515
 516     private static class SizingObjectsRequest extends UnaryRead<Resource, Map<String, DynamicSizeContribution>> {
 517
 518         public SizingObjectsRequest(Resource diagram) {
 519             super(diagram);
 520         }
 521
 522         @Override
 523         public Map<String, DynamicSizeContribution> perform(ReadGraph graph) throws DatabaseException {
 524             DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 525             Resource model = graph.syncRequest(new PossibleIndexRoot(parameter));
 526             if (model != null) {
 527                 Resource vf = DynamicVisualisations.getVisualisationFolder(graph, model);
 528                 if (vf != null) {
 529                     Resource activeVisualisation = graph.getPossibleObject(vf, DN.Diagram_hasActiveVisualisation);
 530                     if (activeVisualisation != null) {
 531                         return DynamicVisualisations.sizeContributions(graph, activeVisualisation);
 532                     }
 533                 } else {
 534                     LOGGER.debug("No visualisation folder available for model {}", model);
 535                 }
 536             }
 537             return Collections.emptyMap();
 538         }
 539     }
 540
 541     private static class SizingObjectsListener implements Listener<Map<String,DynamicSizeContribution>> {
 542
 543         private static final Logger LOGGER = LoggerFactory.getLogger(SizingObjectsListener.class);
 544
 545         private Consumer<Map<String,DynamicSizeContribution>> callback;
 546         private Supplier<Boolean> isDisposed;
 547
 548         public SizingObjectsListener(Consumer<Map<String, DynamicSizeContribution>> callback, Supplier<Boolean> isDisposed) {
 549             this.callback = callback;
 550             this.isDisposed = isDisposed;
 551         }
 552
 553         @Override
 554         public void execute(Map<String, DynamicSizeContribution> result) {
 555             callback.accept(result);
 556         }
 557
 558         @Override
 559         public void exception(Throwable t) {
 560             LOGGER.error("Could not listen SizingObjectsOptions", t);
 561         }
 562
 563         @Override
 564         public boolean isDisposed() {
 565             return isDisposed.get();
 566         }
 567     }
 568
 569     private static class ShowElevationServerRequest extends UnaryRead<Resource, Boolean> {
 570
 571         public ShowElevationServerRequest(Resource diagram) {
 572             super(diagram);
 573         }
 574
 575         @Override
 576         public Boolean perform(ReadGraph graph) throws DatabaseException {
 577             DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 578             Resource model = graph.syncRequest(new PossibleIndexRoot(parameter));
 579             if (model != null) {
 580                 Resource vf = DynamicVisualisations.getVisualisationFolder(graph, model);
 581                 if (vf != null) {
 582                     Resource activeVisualisation = graph.getPossibleObject(vf, DN.Diagram_hasActiveVisualisation);
 583                     if (activeVisualisation != null) {
 584                         return DynamicVisualisations.showElevationServerBoundingBox(graph, activeVisualisation);
 585                     }
 586                 } else {
 587                     LOGGER.debug("No visualisation folder available for model {}", model);
 588                 }
 589             }
 590             return false;
 591         }
 592     }
 593
 594     private static class ShowElevationServerListener implements Listener<Boolean> {
 595
 596         private static final Logger LOGGER = LoggerFactory.getLogger(ShowElevationServerListener.class);
 597
 598         private Consumer<Boolean> callback;
 599         private Supplier<Boolean> isDisposed;
 600
 601         public ShowElevationServerListener(Consumer<Boolean> callback, Supplier<Boolean> isDisposed) {
 602             this.callback = callback;
 603             this.isDisposed = isDisposed;
 604         }
 605
 606         @Override
 607         public void execute(Boolean result) {
 608             callback.accept(result);
 609         }
 610
 611         @Override
 612         public void exception(Throwable t) {
 613             LOGGER.error("Could not listen Show Elevation Server", t);
 614         }
 615
 616         @Override
 617         public boolean isDisposed() {
 618             return isDisposed.get();
 619         }
 620     }
 621 }