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