gerrit.simantics Code Review - simantics/district.git/blob

   1 package org.simantics.district.selection.ui.parts;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collection;
   5 import java.util.Collections;
   6 import java.util.Comparator;
   7 import java.util.HashMap;
   8 import java.util.HashSet;
   9 import java.util.List;
  10 import java.util.Map;
  11 import java.util.Set;
  12 import java.util.UUID;
  13 import java.util.function.Consumer;
  14
  15 import javax.inject.Inject;
  16
  17 import org.eclipse.core.runtime.IStatus;
  18 import org.eclipse.core.runtime.Status;
  19 import org.eclipse.jface.dialogs.Dialog;
  20 import org.eclipse.jface.dialogs.ErrorDialog;
  21 import org.eclipse.jface.layout.GridDataFactory;
  22 import org.eclipse.jface.layout.GridLayoutFactory;
  23 import org.eclipse.jface.layout.RowDataFactory;
  24 import org.eclipse.jface.layout.RowLayoutFactory;
  25 import org.eclipse.jface.resource.ImageDescriptor;
  26 import org.eclipse.jface.resource.JFaceResources;
  27 import org.eclipse.jface.resource.LocalResourceManager;
  28 import org.eclipse.jface.resource.ResourceLocator;
  29 import org.eclipse.swt.SWT;
  30 import org.eclipse.swt.events.SelectionAdapter;
  31 import org.eclipse.swt.events.SelectionEvent;
  32 import org.eclipse.swt.widgets.Button;
  33 import org.eclipse.swt.widgets.Combo;
  34 import org.eclipse.swt.widgets.Composite;
  35 import org.eclipse.swt.widgets.Control;
  36 import org.eclipse.swt.widgets.Label;
  37 import org.eclipse.swt.widgets.Shell;
  38 import org.eclipse.swt.widgets.Text;
  39 import org.eclipse.swt.widgets.Widget;
  40 import org.simantics.Simantics;
  41 import org.simantics.db.ReadGraph;
  42 import org.simantics.db.Resource;
  43 import org.simantics.db.WriteGraph;
  44 import org.simantics.db.common.request.IndexRoot;
  45 import org.simantics.db.common.request.ReadRequest;
  46 import org.simantics.db.common.request.WriteRequest;
  47 import org.simantics.db.exception.DatabaseException;
  48 import org.simantics.db.exception.RuntimeDatabaseException;
  49 import org.simantics.db.layer0.QueryIndexUtils;
  50 import org.simantics.db.layer0.request.ActiveModels;
  51 import org.simantics.db.layer0.request.PropertyInfo;
  52 import org.simantics.db.layer0.request.PropertyInfoRequest;
  53 import org.simantics.db.layer0.util.Layer0Utils;
  54 import org.simantics.db.request.Read;
  55 import org.simantics.diagram.stubs.DiagramResource;
  56 import org.simantics.district.network.ontology.DistrictNetworkResource;
  57 import org.simantics.district.region.ontology.DiagramRegionsResource;
  58 import org.simantics.district.route.ontology.RouteResource;
  59 import org.simantics.district.selection.ElementSelectionResource;
  60 import org.simantics.district.selection.ElementSelectionUtils;
  61 import org.simantics.district.selection.ElementSelector;
  62 import org.simantics.district.selection.ElementSelector.AggregateCondition;
  63 import org.simantics.district.selection.ElementSelector.AggregateCondition.Type;
  64 import org.simantics.district.selection.ElementSelector.All;
  65 import org.simantics.district.selection.ElementSelector.Condition;
  66 import org.simantics.district.selection.ElementSelector.DiagramGenerator;
  67 import org.simantics.district.selection.ElementSelector.ExplicitGenerator;
  68 import org.simantics.district.selection.ElementSelector.Generator;
  69 import org.simantics.district.selection.ElementSelector.ModelGenerator;
  70 import org.simantics.district.selection.ElementSelector.PropertyCondition;
  71 import org.simantics.district.selection.ElementSelector.PropertySelector;
  72 import org.simantics.district.selection.ElementSelector.RegionCondition;
  73 import org.simantics.district.selection.ElementSelector.RouteCondition;
  74 import org.simantics.district.selection.ElementSelector.Selector;
  75 import org.simantics.layer0.Layer0;
  76 import org.simantics.layer0.utils.direct.GraphUtils;
  77 import org.simantics.modeling.ModelingResources;
  78 import org.simantics.structural.stubs.StructuralResource2;
  79 import org.simantics.utils.datastructures.Arrays;
  80 import org.simantics.utils.datastructures.Pair;
  81 import org.slf4j.Logger;
  82 import org.slf4j.LoggerFactory;
  83
  84 public class EditSelectorDialog extends Dialog {
  85
  86         private static final RowLayoutFactory ROW_LAYOUT = RowLayoutFactory.fillDefaults().wrap(false);
  87         private static final ImageDescriptor CROSS_IMAGE = ResourceLocator.imageDescriptorFromBundle("com.famfamfam.silk", "icons/cross.png").get();
  88         private static final ImageDescriptor PLUS_IMAGE = ResourceLocator.imageDescriptorFromBundle("com.famfamfam.silk", "icons/add.png").get();
  89
  90         private static Logger LOGGER = LoggerFactory.getLogger(EditSelectorDialog.class);
  91
  92         private ElementSelector elementSelector;
  93
  94         // Currently selected elements
  95         Collection<Resource> currentSelection;
  96
  97         // Data for comboboxes
  98         private List<Resource> diagrams;
  99         private ArrayList<String> diagramNames;
 100
 101         private String[] regionNames;
 102         private Resource[] regionResources;
 103
 104         private String[] routeNames;
 105         private Resource[] routeResources;
 106
 107         private List<Resource> componentTypes;
 108         private List<String> componentTypeNames;
 109
 110         private List<String> propertyNames;
 111         private List<String> propertyLabels;
 112
 113         private Composite conditionPanel;
 114
 115         // Dialog fields
 116         private int generatorIndex;
 117         private Combo sourceField;
 118
 119         private String name;
 120         private Text nameField;
 121
 122         private Resource diagram;
 123         private Combo diagramField;
 124
 125         private int selectorIndex;
 126         private Combo selectorField;
 127
 128         private Resource componentType;
 129         private Combo componentTypeField;
 130
 131         private String propertyName;
 132         private Combo propertyField;
 133
 134         private int numberOfItems;
 135         private Text nField;
 136
 137         private Condition condition;
 138
 139         // Dialog area component
 140         private Composite content;
 141
 142         private int diagramIndex;
 143
 144         private LocalResourceManager resourceManager;
 145
 146         // Function type for updating condition objects with optional validation
 147         static interface Updater {
 148                 // If 'validate' is true, a runtime exception may be thrown for invalid values
 149                 void update(boolean validate);
 150         }
 151
 152         final static Updater NULL_UPDATE = validate -> {};
 153
 154         // Called to read values from controls into conditions
 155         Updater updater = NULL_UPDATE;
 156
 157         @Inject
 158         public EditSelectorDialog(Shell shell, ElementSelector elementSelector, Collection<Resource> currentSelection) {
 159                 super(shell);
 160
 161                 this.elementSelector = elementSelector;
 162                 if (elementSelector != null) {
 163                         try {
 164                                 Simantics.getSession().sync(new ReadRequest() {
 165                                         @Override
 166                                         public void run(ReadGraph graph) throws DatabaseException {
 167                                                 elementSelector.buildSelection(graph);
 168                                         }
 169                                 });
 170                         } catch (DatabaseException e1) {
 171                                 LOGGER.error("Failed to read element selector resource " + elementSelector.getResource(), e1);
 172                                 throw new RuntimeDatabaseException(e1);
 173                         }
 174                 }
 175
 176                 this.currentSelection = currentSelection;
 177
 178                 Map<Resource, String> diagramMap = ElementSelector.findDiagrams();
 179                 diagrams = new ArrayList<Resource>(diagramMap.size());
 180                 diagramNames = new ArrayList<String>(diagramMap.size());
 181                 diagramMap.entrySet()
 182                         .stream()
 183                         .sorted(Comparator.comparing(e -> e.getValue()))
 184                         .forEachOrdered(e -> {
 185                                 diagrams.add(e.getKey());
 186                                 diagramNames.add(e.getValue());
 187                         });
 188
 189                 final Map<Resource, String> regions = new HashMap<>();
 190                 final Map<Resource, String> routes = new HashMap<>();
 191
 192                 try {
 193                         Simantics.getSession().syncRequest(new Read<Void>() {
 194                                 @Override
 195                                 public Void perform(ReadGraph graph) throws DatabaseException {
 196                                         Resource model = ActiveModels.getPossibleActiveModel(graph, Simantics.getProjectResource());
 197                                         List<Resource> regionCollection = QueryIndexUtils.searchByType(graph, model, DiagramRegionsResource.getInstance(graph).Region);
 198                                         for (Resource r : regionCollection) {
 199                                                 String name = graph.getRelatedValue(r, Layer0.getInstance(graph).HasName);
 200                                                 regions.put(r, name);
 201                                         }
 202
 203                                         List<Resource> routeCollection = QueryIndexUtils.searchByType(graph, model, RouteResource.getInstance(graph).Route);
 204                                         for (Resource r : routeCollection) {
 205                                                 String name = graph.getRelatedValue(r, Layer0.getInstance(graph).HasName);
 206                                                 routes.put(r, name);
 207                                         }
 208                                         return null;
 209                                 }
 210                         });
 211                 } catch (DatabaseException e) {
 212                         LOGGER.error("Failed to read routes and/or regions in the model", e);
 213                 }
 214
 215                 regionNames = regions.values().toArray(new String[regions.size()]);
 216                 regionResources = regions.keySet().toArray(new Resource[regions.size()]);
 217
 218                 routeNames = routes.values().toArray(new String[routes.size()]);
 219                 routeResources = routes.keySet().toArray(new Resource[routes.size()]);
 220
 221                 try {
 222                         Simantics.getSession().syncRequest(new ReadRequest() {
 223                                 @Override
 224                                 public void run(ReadGraph graph) throws DatabaseException {
 225                                         Layer0 L0 = Layer0.getInstance(graph);
 226                                         List<Resource> types = findComponentTypes(graph);
 227
 228                                         componentTypes = new ArrayList<>(types.size() + 1);
 229                                         componentTypeNames = new ArrayList<>(types.size() + 1);
 230
 231                                         componentTypes.add(null);
 232                                         componentTypeNames.add("Any type");
 233                                         componentTypes.addAll(types);
 234                                         for (Resource t : types) {
 235                                                 componentTypeNames.add(graph.getValue2(t, L0.HasName));
 236                                         }
 237                                 }
 238                         });
 239                 } catch (DatabaseException e) {
 240                         LOGGER.error("Failed to read district component types", e);
 241                 }
 242
 243                 componentType = elementSelector.getSelector().componentType;
 244
 245                 propertyNames = new ArrayList<>();
 246                 propertyLabels = new ArrayList<>();
 247
 248                 try {
 249                         updatePropertyList();
 250                 } catch (DatabaseException e) {
 251                         LOGGER.error("Failed to read district component properties", e);
 252                 }
 253
 254                 name = elementSelector != null ? elementSelector.getName() : "";
 255                 propertyName = "";
 256                 numberOfItems = 1;
 257                 generatorIndex = 0;
 258                 selectorIndex = 0;
 259                 diagram = null;
 260                 condition = null;
 261
 262                 if (elementSelector != null) {
 263                         Generator generator = elementSelector.getGenerator();
 264                         if (generator instanceof ModelGenerator) {
 265                                 generatorIndex = 0;
 266                         }
 267                         else if (generator instanceof DiagramGenerator) {
 268                                 generatorIndex = 1;
 269                                 diagram = ((DiagramGenerator)generator).diagram;
 270                         }
 271                         else if (generator instanceof ExplicitGenerator) {
 272                                 generatorIndex = 2;
 273                         }
 274                         else {
 275                                 throw new IllegalStateException("Unknown generator type " + generator.getClass().getName());
 276                         }
 277
 278                         Selector selector = elementSelector.getSelector();
 279                         if (selector instanceof All) {
 280                                 selectorIndex = 0;
 281                         }
 282                         else if (selector instanceof PropertySelector) {
 283                                 PropertySelector propertySelector = (PropertySelector)selector;
 284                                 selectorIndex = propertySelector.smallest ? 1 : 2;
 285                                 propertyName = propertySelector.propertyName;
 286                                 numberOfItems = propertySelector.resultCount;
 287                         }
 288                         else {
 289                                 throw new IllegalStateException("Unknwon selector type " + selector.getClass().getName());
 290                         }
 291
 292                         condition = elementSelector.getCondition();
 293                 }
 294         }
 295
 296         private void updateDialog() {
 297                 updater.update(false);
 298                 updater = updateConditionPanel();
 299
 300                 content.layout(true, true);
 301                 getShell().pack();
 302         }
 303
 304         @Override
 305         protected void okPressed() {
 306                 generatorIndex = sourceField.getSelectionIndex();
 307                 if (generatorIndex == 1) {
 308                         int selectionIndex = diagramField.getSelectionIndex();
 309                         if (selectionIndex < 0) {
 310                                 ErrorDialog.openError(getShell(), "Error", "Please select a diagram", new Status(IStatus.ERROR, "org.simantics.district.selection.ui", "No diagram selected"));
 311                                 return;
 312                         }
 313
 314                         diagram = diagrams.get(selectionIndex);
 315                 }
 316
 317                 name = nameField.getText();
 318                 componentType = componentTypes.get(componentTypeField.getSelectionIndex());
 319                 selectorIndex = selectorField.getSelectionIndex();
 320                 int propertyIndex = propertyField.getSelectionIndex();
 321                 propertyName = propertyIndex >= 0 ? propertyNames.get(propertyIndex) : propertyField.getText();
 322
 323                 // Try to parse number of items
 324                 if (useNumberOfItems()) {
 325                         try {
 326                                 numberOfItems = Integer.parseInt(nField.getText());
 327                         } catch (RuntimeException e) {
 328                                 nField.selectAll();
 329                                 nField.forceFocus();
 330                                 return;
 331                         }
 332                 }
 333
 334                 // To to update condition definitions
 335                 try {
 336                         updater.update(true);
 337                 } catch (RuntimeException e) {
 338                         return;
 339                 }
 340
 341                 super.okPressed();
 342         }
 343
 344         public void writeSelection() throws DatabaseException {
 345                 Simantics.getSession().syncRequest(new WriteRequest() {
 346                         @Override
 347                         public void perform(WriteGraph graph) throws DatabaseException {
 348                                 Layer0 L0 = Layer0.getInstance(graph);
 349                                 ElementSelectionResource ES = ElementSelectionResource.getInstance(graph);
 350                                 ModelingResources MOD = ModelingResources.getInstance(graph);
 351                                 DiagramResource DIA = DiagramResource.getInstance(graph);
 352
 353                                 graph.markUndoPoint();
 354                                 Layer0Utils.addCommentMetadata(graph, "Created new element selection");
 355
 356                                 Resource lib = ElementSelectionUtils.ensureSelectionLibrary(graph);
 357
 358                                 // Selection
 359                                 Resource selection;
 360                                 if (elementSelector != null) {
 361                                         selection = elementSelector.getResource();
 362                                         graph.deny(selection);
 363                                 }
 364                                 else {
 365                                         selection = graph.newResource();
 366                                 }
 367
 368                                 graph.claim(selection, L0.InstanceOf, ES.Selection);
 369                                 graph.claimLiteral(selection, L0.HasName, L0.String, UUID.randomUUID().toString());
 370                                 graph.claimLiteral(selection, L0.HasLabel, L0.String, name);
 371                                 graph.claim(selection, L0.PartOf, lib);
 372
 373                                 // Generator
 374                                 Resource generator = graph.newResource();
 375                                 Resource generatorType;
 376                                 switch (generatorIndex) {
 377                                 case 0:
 378                                         generatorType = ES.Generator_Model;
 379                                         break;
 380                                 case 1:
 381                                         generatorType = ES.Generator_Diagram;
 382                                         Resource composite = graph.getPossibleObject(diagram, MOD.DiagramToComposite);
 383                                         graph.claim(generator, ES.Generator_HasDiagram, composite != null ? composite : diagram);
 384                                         break;
 385                                 case 2:
 386                                         generatorType = ES.Generator_Explicit;
 387                                         for (Resource r : currentSelection) {
 388                                                 // No connections
 389                                                 if (graph.isInstanceOf(r, DIA.Connection))
 390                                                         continue;
 391                                                 if (!graph.isInstanceOf(r, DIA.Element)) {
 392                                                         if (!graph.hasStatement(r, MOD.ComponentToElement))
 393                                                                 continue;
 394
 395                                                         r = graph.getPossibleObject(r, MOD.ComponentToElement);
 396                                                         if (r == null)
 397                                                                 continue;
 398                                                 }
 399
 400                                                 graph.claim(generator, ES.Generator_HasSelectedElement, r);
 401                                         }
 402                                         break;
 403                                 default: throw new IllegalStateException("Invalid source index " + generatorIndex);
 404                                 }
 405                                 graph.claim(generator, L0.InstanceOf, generatorType);
 406                                 graph.claim(selection, ES.Selection_HasGenerator, generator);
 407
 408                                 // Selector
 409                                 Resource selector = graph.newResource();
 410                                 Resource selectorType;
 411                                 switch (selectorIndex) {
 412                                 case 0: selectorType = ES.Selector_All; break;
 413                                 case 1: selectorType = ES.Selector_NLowest; break;
 414                                 case 2: selectorType = ES.Selector_NHighest; break;
 415                                 default: throw new IllegalStateException("Invalid selector index " + selectorIndex);
 416                                 }
 417                                 graph.claim(selector, L0.InstanceOf, selectorType);
 418                                 graph.claim(selection, ES.Selection_HasSelector, selector);
 419                                 graph.deny(selector, ES.Selector_HasMapping);
 420                                 if (componentType != null)
 421                                         graph.claim(selector, ES.Selector_HasMapping, componentType);
 422
 423                                 if (selectorIndex > 0) {
 424                                         graph.claimLiteral(selector, ES.PropertySelector_HasSelectionPropertyName, L0.String, propertyName);
 425                                         graph.claimLiteral(selector, ES.PropertySelector_HasResultCount, L0.Integer, numberOfItems);
 426                                 }
 427
 428                                 // Condition
 429                                 if (condition != null) {
 430                                         Resource conditionResource = condition.update(graph);
 431                                         graph.claim(selection, ES.Selection_HasCondition, conditionResource);
 432                                 }
 433                         }
 434                 });
 435         }
 436
 437         private boolean isDiagramFieldVisible() {
 438                 return generatorIndex == 1;
 439         }
 440
 441         private boolean useNumberOfItems() {
 442                 return selectorIndex != 0;
 443         }
 444
 445         @Override
 446         protected Control createDialogArea(Composite parent) {
 447                 this.resourceManager = new LocalResourceManager(JFaceResources.getResources(), parent);
 448
 449                 // Set dialog title
 450                 getShell().setText("Edit element selector");
 451
 452                 content = new Composite(parent, SWT.NONE);
 453                 GridLayoutFactory.swtDefaults().numColumns(2).applyTo(content);
 454
 455                 // Name
 456                 Label nameLabel = new Label(content, SWT.NONE);
 457                 nameLabel.setText("Name");
 458                 GridDataFactory.swtDefaults().applyTo(nameLabel);
 459
 460                 nameField = new Text(content, SWT.BORDER);
 461                 nameField.setEditable(true);
 462                 nameField.setText(name);
 463                 GridDataFactory.swtDefaults().hint(200, SWT.DEFAULT).applyTo(nameField);
 464
 465                 // Selector
 466                 Label selectorLabel = new Label(content, SWT.NONE);
 467                 selectorLabel.setText("Select");
 468                 GridDataFactory.swtDefaults().applyTo(selectorLabel);
 469
 470                 Composite selectorComposite = new Composite(content, SWT.NONE);
 471                 GridDataFactory.swtDefaults().applyTo(selectorComposite);
 472                 RowLayoutFactory.swtDefaults().applyTo(selectorComposite);
 473
 474                 nField = new Text(selectorComposite, SWT.BORDER);
 475                 RowDataFactory.swtDefaults().hint(40, SWT.DEFAULT).applyTo(nField);
 476                 if (useNumberOfItems())
 477                         nField.setText(Integer.toString(numberOfItems));
 478                 nField.setEnabled(useNumberOfItems());
 479
 480                 componentTypeField = new Combo(selectorComposite, SWT.READ_ONLY);
 481                 RowDataFactory.swtDefaults().applyTo(componentTypeField);
 482                 componentTypeField.setItems(componentTypeNames.toArray(new String[] {}));
 483                 {
 484                         int index = componentTypes.indexOf(componentType);
 485                         componentTypeField.select(index >= 0 ? index : 0);
 486                 }
 487
 488                 new Label(selectorComposite, SWT.NONE).setText("with");
 489
 490                 selectorField = new Combo(selectorComposite, SWT.BORDER | SWT.READ_ONLY);
 491                 selectorField.setItems("All", "Lowest", "Highest");
 492                 selectorField.select(selectorIndex);
 493                 RowDataFactory.swtDefaults().hint(40, SWT.DEFAULT).applyTo(selectorField);
 494
 495                 propertyField = new Combo(selectorComposite, SWT.NONE);
 496                 RowDataFactory.swtDefaults().hint(80, SWT.DEFAULT).applyTo(propertyField);
 497                 propertyField.setItems(propertyLabels.toArray(new String[] {}));
 498                 {
 499                         int index = propertyName != null ? propertyNames.indexOf(propertyName) : -1;
 500                         if (index >= 0)
 501                                 propertyField.select(index);
 502                         else
 503                                 propertyField.setText(propertyName != null ? propertyName : "");
 504                 }
 505                 propertyField.setEnabled(useNumberOfItems());
 506
 507                 selectorField.addSelectionListener(new SelectionAdapter() {
 508                         @Override
 509                         public void widgetSelected(SelectionEvent e) {
 510                                 selectorIndex = selectorField.getSelectionIndex();
 511
 512                                 boolean enable = useNumberOfItems();
 513                                 nField.setEnabled(enable);
 514                                 propertyField.setEnabled(enable);
 515
 516                                 nField.setText(enable ? Integer.toString(numberOfItems) : "");
 517                         }
 518                 });
 519
 520                 // Source
 521                 Label sourceLabel = new Label(content, SWT.NONE);
 522                 sourceLabel.setText("from");
 523                 GridDataFactory.swtDefaults().align(SWT.BEGINNING, SWT.CENTER).applyTo(sourceLabel);
 524
 525                 Composite sourceComposite = new Composite(content, SWT.NONE);
 526                 GridDataFactory.swtDefaults().applyTo(sourceComposite);
 527                 RowLayoutFactory.swtDefaults().applyTo(sourceComposite);
 528
 529                 sourceField = new Combo(sourceComposite, SWT.BORDER | SWT.READ_ONLY);
 530                 RowDataFactory.swtDefaults().applyTo(sourceField);
 531                 sourceField.setItems("Whole model", "Diagram", "Current selection");
 532                 sourceField.select(generatorIndex);
 533
 534                 diagramField = new Combo(sourceComposite, SWT.BORDER | SWT.READ_ONLY);
 535                 RowDataFactory.swtDefaults().applyTo(diagramField);
 536                 diagramField.setItems(diagramNames.toArray(new String[diagramNames.size()]));
 537                 diagramField.setEnabled(isDiagramFieldVisible());
 538
 539                 diagramIndex = diagram != null ? diagrams.indexOf(diagram) : -1;
 540                 diagramField.select(diagramIndex);
 541
 542                 sourceField.addSelectionListener(new SelectionAdapter() {
 543                         @Override
 544                         public void widgetSelected(SelectionEvent e) {
 545                                 generatorIndex = sourceField.getSelectionIndex();
 546                                 boolean enabled = isDiagramFieldVisible();
 547                                 if (!enabled) {
 548                                         diagramIndex = diagramField.getSelectionIndex();
 549                                         diagramField.clearSelection();
 550                                 } else {
 551                                         if (diagramIndex >= 0)
 552                                                 diagramField.select(diagramIndex);
 553                                         else
 554                                                 diagramField.clearSelection();
 555                                 }
 556                                 diagramField.setEnabled(enabled);
 557                         }
 558                 });
 559
 560                 sourceField.select(generatorIndex);
 561
 562                 // Condition
 563                 Label label = new Label(content, SWT.NONE);
 564                 GridDataFactory.swtDefaults().align(SWT.BEGINNING, SWT.CENTER).applyTo(label);
 565                 label.setText("where");
 566
 567                 conditionPanel = new Composite(content, SWT.NONE);
 568                 GridDataFactory.swtDefaults().span(1, 2).minSize(400, SWT.DEFAULT).grab(true, false).applyTo(conditionPanel);
 569                 GridLayoutFactory.fillDefaults().numColumns(2).applyTo(conditionPanel);
 570
 571                 updater = updateConditionPanel();
 572
 573                 return content;
 574         }
 575
 576         private Updater updateConditionPanel() {
 577                 // Erase contents
 578                 for (Widget c : conditionPanel.getChildren())
 579                         c.dispose();
 580
 581                 return createConditionPanelFor(conditionPanel, condition, cond -> condition = cond);
 582         }
 583
 584         private Updater createConditionPanelFor(final Composite parent, final Condition condition, final Consumer<Condition> consumer) {
 585                 // Create new contents
 586                 Button notCheck = new Button(parent, SWT.CHECK);
 587                 GridDataFactory.swtDefaults().align(SWT.BEGINNING, SWT.BEGINNING).applyTo(notCheck);
 588                 notCheck.setText("not");
 589                 notCheck.setSelection(condition.isInverse);
 590
 591                 Composite conditionComp = new Composite(parent, SWT.NONE);
 592                 GridDataFactory.fillDefaults().applyTo(conditionComp);
 593
 594                 Combo typeCombo = new Combo(conditionComp, SWT.BORDER | SWT.READ_ONLY);
 595                 typeCombo.setItems(
 596                                 "No condition",
 597                                 "Property",
 598                                 "In region",
 599                                 "On route",
 600                                 "All of",
 601                                 "Any of"
 602                         );
 603
 604                 final Updater updater;
 605                 if (condition instanceof PropertyCondition) {
 606                         typeCombo.select(1);
 607                         updater = createPropertyConditionPanel(conditionComp, (PropertyCondition)condition);
 608                 } else if (condition instanceof RegionCondition) {
 609                         typeCombo.select(2);
 610                         updater = createRegionConditionPanel(conditionComp, (RegionCondition)condition);
 611                 } else if (condition instanceof RouteCondition) {
 612                         typeCombo.select(3);
 613                         updater = createRouteConditionPanel(conditionComp, (RouteCondition)condition);
 614                 } else if (condition instanceof AggregateCondition) {
 615                         AggregateCondition cond = (AggregateCondition) condition;
 616                         typeCombo.select(cond.type.equals(Type.CONJUNCTION) ? 4 : 5);
 617                         updater = createAggregateConditionPanel(conditionComp, cond);
 618                 } else {
 619                         ROW_LAYOUT.applyTo(conditionComp);
 620                         notCheck.setEnabled(false);
 621                         typeCombo.select(0);
 622                         updater = validate -> {};
 623                 }
 624
 625                 typeCombo.addSelectionListener(new ConditionTypeSelectionListener(typeCombo, consumer, condition));
 626
 627                 return validate -> {
 628                         updater.update(validate);
 629                         condition.isInverse = notCheck.getSelection();
 630                 };
 631         }
 632
 633         private final class ConditionTypeSelectionListener extends SelectionAdapter {
 634                 private final Combo typeCombo;
 635                 private final Consumer<Condition> consumer;
 636                 private final Condition finalCondition;
 637
 638                 private ConditionTypeSelectionListener(Combo typeCombo, Consumer<Condition> consumer, Condition finalCondition) {
 639                         this.typeCombo = typeCombo;
 640                         this.consumer = consumer;
 641                         this.finalCondition = finalCondition;
 642                 }
 643
 644                 @Override
 645                 public void widgetSelected(SelectionEvent e) {
 646                         int index = typeCombo.getSelectionIndex();
 647                         Condition newCondition = finalCondition;
 648                         switch (index) {
 649                         case 0:
 650                                 newCondition = null;
 651                                 break;
 652                         case 1:
 653                                 newCondition = createPropertyCondition("", null, null);
 654                                 break;
 655                         case 2:
 656                                 newCondition = createRegionCondition(null);
 657                                 break;
 658                         case 3:
 659                                 newCondition = createRouteCondition(null);
 660                                 break;
 661                         case 4:
 662                                 if (newCondition instanceof AggregateCondition)
 663                                         ((AggregateCondition)newCondition).type = Type.CONJUNCTION;
 664                                 else
 665                                         newCondition = createAggregateCondition(null, new ArrayList<>(), true, false);
 666                                 break;
 667                         case 5:
 668                                 if (newCondition instanceof AggregateCondition)
 669                                         ((AggregateCondition)newCondition).type = Type.DISJUNCTION;
 670                                 else
 671                                         newCondition = createAggregateCondition(null, new ArrayList<>(), false, false);
 672                                 break;
 673                         }
 674
 675                         consumer.accept(newCondition);
 676
 677                         updateDialog();
 678                 }
 679         }
 680
 681         private Updater createAggregateConditionPanel(Composite conditionComp, AggregateCondition cond) {
 682                 GridLayoutFactory.fillDefaults().numColumns(2).applyTo(conditionComp);
 683                 new Label(conditionComp, SWT.NONE); // Eat extra column
 684
 685                 int n = cond.conditions.size();
 686                 final Updater[] updates = new Updater[n];
 687                 for (int i = 0; i < n; i++) {
 688                         updates[i] = createConditionRowPanel(conditionComp, cond, i);
 689                 }
 690
 691                 Button addButton = new Button(conditionComp, SWT.PUSH);
 692                 GridDataFactory.swtDefaults().applyTo(addButton);
 693                 addButton.setImage(resourceManager.createImage(PLUS_IMAGE));
 694
 695                 addButton.addSelectionListener(new SelectionAdapter() {
 696                         @Override
 697                         public void widgetSelected(SelectionEvent e) {
 698                                 cond.conditions.add(createPropertyCondition("property", null, null));
 699                                 updateDialog();
 700                         }
 701                 });
 702
 703                 return validate -> {
 704                         for (Updater updater : updates)
 705                                 updater.update(validate);
 706                 };
 707         }
 708
 709         private Updater createConditionRowPanel(Composite parent, AggregateCondition parentCondition, final int i) {
 710                 GridLayoutFactory conditionLayout = GridLayoutFactory.fillDefaults().numColumns(2);
 711                 GridDataFactory swtDefaults = GridDataFactory.swtDefaults();
 712
 713                 Condition c = parentCondition.conditions.get(i);
 714
 715                 Composite row = new Composite(parent, SWT.NONE);
 716                 conditionLayout.applyTo(row);
 717                 swtDefaults.applyTo(row);
 718
 719                 Consumer<Condition> update = cd -> {
 720                         if (cd != null)
 721                                 parentCondition.conditions.set(i, cd);
 722                         else
 723                                 parentCondition.conditions.remove(i);
 724                 };
 725
 726                 Updater updater = createConditionPanelFor(row, c, update);
 727
 728                 Button removeButton = new Button(parent, SWT.PUSH);
 729                 swtDefaults.align(SWT.BEGINNING, SWT.BEGINNING).applyTo(removeButton);
 730                 removeButton.setImage(resourceManager.createImage(CROSS_IMAGE));
 731
 732                 removeButton.addSelectionListener(new SelectionAdapter() {
 733                         @Override
 734                         public void widgetSelected(SelectionEvent e) {
 735                                 parentCondition.conditions.remove(i);
 736                                 updateDialog();
 737                         }
 738                 });
 739
 740                 return updater;
 741         }
 742
 743         private Updater createRouteConditionPanel(Composite conditionComp, RouteCondition condition) {
 744                 ROW_LAYOUT.applyTo(conditionComp);
 745
 746                 // Create combo-box
 747                 Combo routeCombo = new Combo(conditionComp, SWT.READ_ONLY);
 748                 RowDataFactory.swtDefaults().applyTo(routeCombo);
 749                 routeCombo.setItems(routeNames);
 750
 751                 // Set current selection
 752                 int index = Arrays.indexOf(routeResources, condition.routeResource);
 753                 if (index >= 0)
 754                         routeCombo.select(index);
 755
 756                 // Register update
 757                 return validate -> {
 758                         int i = routeCombo.getSelectionIndex();
 759                         condition.routeResource = i >= 0 ? routeResources[i] : null;
 760                 };
 761         }
 762
 763         private Updater createRegionConditionPanel(Composite conditionComp, RegionCondition condition) {
 764                 ROW_LAYOUT.applyTo(conditionComp);
 765
 766                 // Create combo-box
 767                 Combo regionCombo = new Combo(conditionComp, SWT.READ_ONLY);
 768                 RowDataFactory.swtDefaults().applyTo(regionCombo);
 769                 regionCombo.setItems(regionNames);
 770
 771                 // Set current selection
 772                 int index = Arrays.indexOf(regionResources, condition.regionResource);
 773                 if (index >= 0)
 774                         regionCombo.select(index);
 775
 776                 // Register update
 777                 return validate -> {
 778                         int i = regionCombo.getSelectionIndex();
 779                         condition.regionResource = i >= 0 ? regionResources[i] : null;
 780                 };
 781         }
 782
 783         private Updater createPropertyConditionPanel(Composite conditionComp, PropertyCondition condition) {
 784                 ROW_LAYOUT.applyTo(conditionComp);
 785
 786                 Text lowerLimitText = new Text(conditionComp, SWT.BORDER);
 787                 RowDataFactory.swtDefaults().applyTo(lowerLimitText);
 788                 lowerLimitText.setText(condition.lowerLimit != null ? Double.toString(condition.lowerLimit) : "");
 789
 790                 new Label(conditionComp, SWT.NONE).setText("\u2264");
 791
 792                 Combo propertyNameText = new Combo(conditionComp, SWT.NONE);
 793                 RowDataFactory.swtDefaults().applyTo(propertyNameText);
 794                 propertyNameText.setItems(propertyLabels.toArray(new String[] {}));
 795                 int index = propertyNames.indexOf(condition.propertyName);
 796                 if (index >= 0)
 797                         propertyNameText.select(index);
 798                 else
 799                         propertyNameText.setText(condition.propertyName);
 800
 801                 new Label(conditionComp, SWT.NONE).setText("\u2264");
 802
 803                 Text upperLimitText = new Text(conditionComp, SWT.BORDER);
 804                 RowDataFactory.swtDefaults().applyTo(upperLimitText);
 805                 upperLimitText.setText(condition.upperLimit != null ? Double.toString(condition.upperLimit) : "");
 806
 807                 // Register update
 808                 return validate ->  {
 809                         try {
 810                                 String text = lowerLimitText.getText();
 811                                 condition.lowerLimit = text.isEmpty() ? null : Double.parseDouble(text);
 812                         } catch (NumberFormatException e) {
 813                                 if (validate) {
 814                                         lowerLimitText.selectAll();
 815                                         lowerLimitText.forceFocus();
 816                                         throw e;
 817                                 }
 818                         }
 819
 820                         try {
 821                                 String text = upperLimitText.getText();
 822                                 condition.upperLimit = text.isEmpty() ? null : Double.parseDouble(text);
 823                         } catch (NumberFormatException e) {
 824                                 if (validate) {
 825                                         upperLimitText.selectAll();
 826                                         upperLimitText.forceFocus();
 827                                         throw e;
 828                                 }
 829                         }
 830
 831                         int ind = propertyNameText.getSelectionIndex();
 832                         String name;
 833                         if (ind >= 0)
 834                                 name = propertyNames.get(ind);
 835                         else
 836                                 name = propertyNameText.getText();
 837
 838                         if (validate && name.isEmpty()) {
 839                                 propertyNameText.forceFocus();
 840                                 throw new RuntimeException();
 841                         } else {
 842                                 condition.propertyName = name;
 843                         }
 844                 };
 845         }
 846
 847         private static Condition createPropertyCondition(String propertyName, Double lowerLimit, Double upperLimit) {
 848                 return new PropertyCondition(null, propertyName, lowerLimit, upperLimit);
 849         }
 850
 851         private static Condition createRegionCondition(Resource regionResource) {
 852                 return new RegionCondition(null, regionResource, null);
 853         }
 854
 855         private static Condition createRouteCondition(Resource route) {
 856                 return new RouteCondition(null, route, null);
 857         }
 858
 859         private static Condition createAggregateCondition(Resource existingResource, List<Condition> subConditions, boolean isConjunction, boolean isInverse) {
 860                 Type type = isConjunction ? Type.CONJUNCTION : Type.DISJUNCTION;
 861                 AggregateCondition condition = new AggregateCondition(null, type, subConditions);
 862                 condition.isInverse = isInverse;
 863                 return condition;
 864         }
 865
 866         /*
 867         class ConditionDialog extends Dialog {
 868                 // Resource of the edited condition
 869                 private Resource existingResource;
 870
 871                 // Inverse condition button
 872                 private boolean isInverse;
 873                 private Button inverseField;
 874
 875                 // Condition type
 876                 private int typeIndex;
 877                 private Combo typeField;
 878
 879                 // Type-specific control panels under a stack layout
 880                 private Composite stackPanel;
 881                 private StackLayout stack;
 882
 883                 private Composite propertyPanel;
 884                 private Composite regionPanel;
 885                 private Composite routePanel;
 886                 private Composite aggregatePanel;
 887
 888                 // Property condition
 889                 private Double lowerLimit;
 890                 private Double upperLimit;
 891                 private String propertyName;
 892
 893                 private Text propertyNameField;
 894                 private Text lowerLimitField;
 895                 private Text upperLimitField;
 896
 897                 // Region condition
 898                 private Resource region;
 899                 private Combo regionField;
 900
 901                 // Route condition
 902                 private Resource route;
 903                 private Combo routeField;
 904
 905                 // Aggregate condition
 906                 private List<Condition> subConditions;
 907                 private boolean isConjunction;
 908
 909                 private org.eclipse.swt.widgets.List subConditionField;
 910                 private Combo operatorField;
 911
 912                 public ConditionDialog(Shell shell, Condition condition) {
 913                         super(shell);
 914
 915                         typeIndex = 0;
 916                         isInverse = false;
 917                         propertyName = "";
 918                         upperLimit = null;
 919                         lowerLimit = null;
 920                         subConditions = new ArrayList<>();
 921
 922                         existingResource = condition != null ? condition.resource : null;
 923
 924                         if (condition != null) {
 925                                 if (condition instanceof PropertyCondition) {
 926                                         typeIndex = 0;
 927                                         PropertyCondition propertyCondition = (PropertyCondition)condition;
 928                                         propertyName = propertyCondition.propertyName;
 929                                         upperLimit = propertyCondition.upperLimit;
 930                                         lowerLimit = propertyCondition.lowerLimit;
 931                                 }
 932                                 else if (condition instanceof RegionCondition) {
 933                                         typeIndex = 1;
 934                                         region = ((RegionCondition)condition).regionResource;
 935                                 }
 936                                 else if (condition instanceof RouteCondition) {
 937                                         typeIndex = 2;
 938                                         route = ((RouteCondition)condition).routeResource;
 939                                 }
 940                                 else if (condition instanceof AggregateCondition) {
 941                                         typeIndex = 3;
 942                                         subConditions = new ArrayList<>(((AggregateCondition)condition).conditions);
 943                                         isConjunction = ((AggregateCondition)condition).type == Type.CONJUNCTION;
 944                                         isInverse = ((AggregateCondition)condition).type == Type.NEGATION;
 945                                 }
 946                         }
 947                 }
 948
 949                 @Override
 950                 protected Control createDialogArea(Composite parent) {
 951                         getShell().setText("Edit selector condition");
 952
 953                         Composite content = (Composite)super.createDialogArea(parent);
 954                         GridLayoutFactory.swtDefaults().numColumns(1).applyTo(content);
 955
 956                         GridDataFactory defaultWidth = GridDataFactory.swtDefaults().hint(200, SWT.DEFAULT);
 957
 958                         // Is inverse
 959                         inverseField = new Button(content, SWT.CHECK);
 960                         inverseField.setText("Is inverse");
 961                         inverseField.setSelection(isInverse);
 962
 963                         // Condition type
 964                         typeField = new Combo(content, SWT.BORDER | SWT.READ_ONLY);
 965                         typeField.setItems("Property value", "In region", "On route", "Combination");
 966                         typeField.select(typeIndex);
 967
 968                         // Type-dependent stacked panels
 969                         stackPanel = new Composite(content, SWT.NONE);
 970                         stack = new StackLayout();
 971                         stackPanel.setLayout(stack);
 972
 973                         // Property condition panel
 974                         propertyPanel = new Composite(stackPanel, SWT.NONE);
 975                         GridLayoutFactory.swtDefaults().numColumns(2).applyTo(propertyPanel);
 976
 977                         new Label(propertyPanel, SWT.NONE).setText("Property name");
 978                         propertyNameField = new Text(propertyPanel, SWT.BORDER);
 979                         propertyNameField.setText(propertyName);
 980                         defaultWidth.applyTo(propertyNameField);
 981
 982                         new Label(propertyPanel, SWT.NONE).setText("Lower limit");
 983                         lowerLimitField = new Text(propertyPanel, SWT.BORDER);
 984                         defaultWidth.applyTo(lowerLimitField);
 985                         if (lowerLimit != null) lowerLimitField.setText(lowerLimit.toString());
 986
 987                         new Label(propertyPanel, SWT.NONE).setText("Upper limit");
 988                         upperLimitField = new Text(propertyPanel, SWT.BORDER);
 989                         defaultWidth.applyTo(upperLimitField);
 990                         if (upperLimit != null) upperLimitField.setText(upperLimit.toString());
 991
 992                         // Region condition panel
 993                         regionPanel = new Composite(stackPanel, SWT.NONE);
 994                         GridLayoutFactory.swtDefaults().numColumns(2).applyTo(regionPanel);
 995
 996                         new Label(regionPanel, SWT.NONE).setText("Region");
 997                         regionField = new Combo(regionPanel, SWT.BORDER | SWT.READ_ONLY);
 998                         regionField.setItems(regionNames);
 999                         defaultWidth.applyTo(regionField);
1000
1001                         if (region != null) {
1002                                 int regionIndex = Arrays.indexOf(regionResources, region);
1003                                 regionField.select(regionIndex);
1004                         }
1005                         else {
1006                                 regionField.select(0);
1007                         }
1008
1009                         // Route condition panel
1010                         routePanel = new Composite(stackPanel, SWT.NONE);
1011                         GridLayoutFactory.swtDefaults().numColumns(2).applyTo(routePanel);
1012
1013                         new Label(routePanel, SWT.NONE).setText("Route");
1014                         routeField = new Combo(routePanel, SWT.BORDER | SWT.READ_ONLY);
1015                         routeField.setItems(routeNames);
1016                         defaultWidth.applyTo(routeField);
1017
1018                         if (route != null) {
1019                                 int routeIndex = Arrays.indexOf(routeResources, route);
1020                                 routeField.select(routeIndex);
1021                         }
1022                         else {
1023                                 routeField.select(0);
1024                         }
1025
1026                         // Aggregate condition panel
1027                         aggregatePanel = new Composite(stackPanel, SWT.NONE);
1028                         GridLayoutFactory.swtDefaults().numColumns(2).applyTo(aggregatePanel);
1029
1030                         new Label(aggregatePanel, SWT.NONE).setText("Operator");
1031                         operatorField = new Combo(aggregatePanel, SWT.READ_ONLY);
1032                         operatorField.setItems("And", "Or");
1033                         operatorField.select(isConjunction ? 0 : 1);
1034
1035                         new Label(aggregatePanel, SWT.NONE).setText("Sub-conditions");
1036                         Composite buttons = new Composite(aggregatePanel, SWT.NONE);
1037                         RowLayoutFactory.swtDefaults().justify(true).fill(true).extendedMargins(0, 0, 0, 0).type(SWT.HORIZONTAL).applyTo(buttons);
1038
1039                         Button addButton = new Button(buttons, SWT.PUSH);
1040                         addButton.setText("Add");
1041                         Button removeButton = new Button(buttons, SWT.PUSH);
1042                         removeButton.setText("Remove");
1043                         Button editButton = new Button(buttons, SWT.PUSH);
1044                         editButton.setText("Edit");
1045
1046                         new Label(aggregatePanel, SWT.NONE);
1047                         subConditionField = new org.eclipse.swt.widgets.List(aggregatePanel, SWT.BORDER);
1048                         GridDataFactory.swtDefaults().hint(200, 150).applyTo(subConditionField);
1049                         if (subConditions != null) {
1050                                 Session session = Simantics.getSession();
1051                                 List<String> items = new ArrayList<>();
1052                                 for (Condition c : subConditions) {
1053                                         try {
1054                                                 items.add(ElementSelector.getExpression(session, c.resource));
1055                                         } catch (DatabaseException e1) {
1056                                                 LOGGER.error("Condition expression read failed", e1);
1057                                                 items.add("<Unknown expression>");
1058                                         }
1059                                 }
1060
1061                                 subConditionField.setItems(items.toArray(new String[items.size()]));
1062                         }
1063
1064                         addButton.addSelectionListener(new SelectionAdapter() {
1065                                 @Override
1066                                 public void widgetSelected(SelectionEvent e) {
1067                                         ConditionDialog conditionDialog = new ConditionDialog(getShell(), null);
1068                                         if (conditionDialog.open() == Window.OK) {
1069                                                 Condition condition;
1070                                                 try {
1071                                                         condition = conditionDialog.createCondition();
1072                                                         subConditions.add(condition);
1073
1074                                                         try {
1075                                                                 subConditionField.add(ElementSelector.getExpression(Simantics.getSession(), condition.resource));
1076                                                         } catch (DatabaseException e1) {
1077                                                                 LOGGER.error("Condition expression read failed", e1);
1078                                                                 subConditionField.add("<Unknown expression>");
1079                                                         }
1080                                                 } catch (DatabaseException e2) {
1081                                                         LOGGER.error("Create condition failed", e2);
1082                                                 }
1083                                         }
1084                                 }
1085                         });
1086
1087                         removeButton.addSelectionListener(new SelectionAdapter() {
1088                                 @Override
1089                                 public void widgetSelected(SelectionEvent e) {
1090                                         int index = subConditionField.getSelectionIndex();
1091                                         if (index >= 0) {
1092                                                 subConditionField.deselectAll();
1093                                                 subConditionField.remove(index);
1094                                                 subConditions.remove(index);
1095
1096                                                 if (index < subConditions.size())
1097                                                         subConditionField.setSelection(index);
1098                                         }
1099
1100                                         boolean selected = subConditionField.getSelectionIndex() >= 0;
1101                                         removeButton.setEnabled(selected);
1102                                         editButton.setEnabled(selected);
1103                                 }
1104                         });
1105
1106                         editButton.addSelectionListener(new SelectionAdapter() {
1107                                 @Override
1108                                 public void widgetSelected(SelectionEvent e) {
1109                                         int index = subConditionField.getSelectionIndex();
1110                                         if (index >= 0) {
1111                                                 Condition condition = subConditions.get(index);
1112                                                 ConditionDialog conditionDialog = new ConditionDialog(getShell(), condition);
1113                                                 if (conditionDialog.open() == Window.OK) {
1114                                                         try {
1115                                                                 condition = conditionDialog.createCondition();
1116                                                                 subConditions.set(index, condition);
1117
1118                                                                 try {
1119                                                                         subConditionField.setItem(index, ElementSelector.getExpression(Simantics.getSession(), condition.resource));
1120                                                                 } catch (DatabaseException e1) {
1121                                                                         LOGGER.error("Condition expression read failed", e1);
1122                                                                         subConditionField.setItem(index, "<Unknown expression>");
1123                                                                 }
1124                                                         } catch (DatabaseException e2) {
1125                                                                 LOGGER.error("Create condition failed", e2);
1126                                                         }
1127                                                 }
1128                                         }
1129                                 }
1130                         });
1131
1132                         subConditionField.addSelectionListener(new SelectionAdapter() {
1133                                 @Override
1134                                 public void widgetSelected(SelectionEvent e) {
1135                                         boolean selected = subConditionField.getSelectionIndex() >= 0;
1136                                         removeButton.setEnabled(selected);
1137                                         editButton.setEnabled(selected);
1138                                 }
1139                         });
1140
1141                         // Stack layout update
1142                         typeField.addSelectionListener(new SelectionAdapter() {
1143                                 @Override
1144                                 public void widgetSelected(SelectionEvent e) {
1145                                         updateStack();
1146                                 }
1147                         });
1148
1149                         updateStack();
1150
1151                         return content;
1152                 }
1153
1154                 @Override
1155                 protected void okPressed() {
1156                         isInverse = inverseField.getSelection();
1157
1158                         switch (typeIndex) {
1159                         case 0: // Property condition
1160                                 propertyName = propertyNameField.getText();
1161                                 try {
1162                                         String lowerLimitText = lowerLimitField.getText();
1163                                         lowerLimit = lowerLimitText.equals("") ? null : Double.valueOf(lowerLimitText);
1164                                         String upperLimitText = upperLimitField.getText();
1165                                         upperLimit = upperLimitText.equals("") ? null : Double.valueOf(upperLimitText);
1166                                 }
1167                                 catch (NumberFormatException e) {
1168                                         ErrorDialog.openError(getShell(), "Error", "Invalid numeric value: " + e.getMessage(), new Status(OK, "org.simantics.district.selection.ui", e.getMessage()));
1169                                         return;
1170                                 }
1171                                 break;
1172                         case 1: { // Region condition
1173                                 int selectionIndex = regionField.getSelectionIndex();
1174                                 if (selectionIndex < 0) {
1175                                         ErrorDialog.openError(getShell(), "Error", "Please select a region", new Status(OK, "org.simantics.district.selection.ui", "No region selection"));
1176                                         return;
1177                                 }
1178                                 region = regionResources[selectionIndex];
1179                                 break;
1180                         }
1181                         case 2: // Route condition
1182                                 route = routeResources[routeField.getSelectionIndex()];
1183                                 break;
1184                         case 3: // Aggregate condition
1185                                 isConjunction = operatorField.getSelectionIndex() == 0;
1186                                 break;
1187                         }
1188
1189                         super.okPressed();
1190                 }
1191
1192                 protected Condition createCondition() throws DatabaseException {
1193                         if (isInverse && !(typeIndex == 3 && !isConjunction)) {
1194                                 Resource resource0 = createCondition0(typeIndex);
1195
1196                                 // Create a negation
1197                                 Resource resource = Simantics.getSession().syncRequest(new WriteResult<Resource>() {
1198                                         @Override
1199                                         public Resource perform(WriteGraph graph) throws DatabaseException {
1200                                                 ElementSelectionResource ES = ElementSelectionResource.getInstance(graph);
1201                                                 Layer0 L0 = Layer0.getInstance(graph);
1202
1203                                                 Resource r = graph.newResource();
1204                                                 graph.claim(r, L0.InstanceOf, ES.Negation);
1205                                                 graph.claim(r, ES.HasSubcondition, resource0);
1206                                                 return r;
1207                                         }
1208                                 });
1209
1210                                 return ElementSelector.getCondition(Simantics.getSession(), resource);
1211                         }
1212                         else {
1213                                 return ElementSelector.getCondition(Simantics.getSession(), createCondition0(typeIndex));
1214                         }
1215                 }
1216
1217                 private Resource createCondition0(int index) throws DatabaseException {
1218                         switch (index) {
1219                         case 0: return createPropertyCondition();
1220                         case 1: return createRegionCondition();
1221                         case 2: return createRouteCondition();
1222                         case 3: return createAggregateCondition();
1223                         default: throw new IllegalStateException("Invalid condition type code " + index);
1224                         }
1225                 }
1226
1227                 private Resource createPropertyCondition() throws DatabaseException {
1228                         return Simantics.getSession().syncRequest(new WriteResult<Resource>() {
1229                                 @Override
1230                                 public Resource perform(WriteGraph graph) throws DatabaseException {
1231                                         ElementSelectionResource ES = ElementSelectionResource.getInstance(graph);
1232                                         Layer0 L0 = Layer0.getInstance(graph);
1233
1234                                         Resource r = graph.newResource();
1235                                         graph.claim(r, L0.InstanceOf, ES.PropertyCondition);
1236                                         graph.claimLiteral(r, ES.PropertyCondition_HasPropertyName, propertyName);
1237                                         if (lowerLimit != null)
1238                                                 graph.claimLiteral(r, ES.PropertyCondition_HasLowerLimit, L0.Double, lowerLimit);
1239                                         if (upperLimit != null)
1240                                                 graph.claimLiteral(r, ES.PropertyCondition_HasUpperLimit, L0.Double, upperLimit);
1241
1242                                         return r;
1243                                 }
1244                         });
1245                 }
1246
1247                 private Resource createAggregateCondition() throws DatabaseException {
1248                         return Simantics.getSession().syncRequest(new WriteResult<Resource>() {
1249                                 @Override
1250                                 public Resource perform(WriteGraph graph) throws DatabaseException {
1251                                         ElementSelectionResource ES = ElementSelectionResource.getInstance(graph);
1252                                         Layer0 L0 = Layer0.getInstance(graph);
1253
1254                                         Resource r;
1255                                         if (existingResource != null) {
1256                                                 // Reuse existing resource
1257                                                 r = existingResource;
1258                                                 // Clear any previous statements
1259                                                 graph.deny(existingResource);
1260                                         }
1261                                         else {
1262                                                 r = graph.newResource();
1263                                         }
1264
1265                                         Resource type;
1266                                         type = isConjunction ? ES.Conjunction : isInverse ? ES.Negation : ES.Disjunction;
1267
1268                                         graph.claim(r, L0.InstanceOf, type);
1269                                         for (Condition c : subConditions) {
1270                                                 graph.claim(r, ES.HasSubcondition, c.resource);
1271                                         }
1272
1273                                         return r;
1274                                 }
1275                         });
1276                 }
1277
1278                 private Resource createRouteCondition() throws DatabaseException {
1279                         return Simantics.getSession().syncRequest(new WriteResult<Resource>() {
1280                                 @Override
1281                                 public Resource perform(WriteGraph graph) throws DatabaseException {
1282                                         ElementSelectionResource ES = ElementSelectionResource.getInstance(graph);
1283                                         Layer0 L0 = Layer0.getInstance(graph);
1284
1285                                         Resource r = graph.newResource();
1286                                         graph.claim(r, L0.InstanceOf, ES.RouteCondition);
1287                                         graph.claim(r, ES.RouteCondition_HasRoute, route);
1288                                         return r;
1289                                 }
1290                         });
1291                 }
1292
1293                 private Resource createRegionCondition() throws DatabaseException {
1294                         return Simantics.getSession().syncRequest(new WriteResult<Resource>() {
1295                                 @Override
1296                                 public Resource perform(WriteGraph graph) throws DatabaseException {
1297                                         ElementSelectionResource ES = ElementSelectionResource.getInstance(graph);
1298                                         Layer0 L0 = Layer0.getInstance(graph);
1299
1300                                         Resource r = graph.newResource();
1301                                         graph.claim(r, L0.InstanceOf, ES.RegionCondition);
1302                                         graph.claim(r, ES.RegionCondition_HasRegion, region);
1303                                         return r;
1304                                 }
1305                         });
1306                 }
1307
1308                 private void updateStack() {
1309                         typeIndex = typeField.getSelectionIndex();
1310                         switch (typeIndex) {
1311                         case 0: stack.topControl = propertyPanel; break;
1312                         case 1: stack.topControl = regionPanel; break;
1313                         case 2: stack.topControl = routePanel; break;
1314                         case 3: stack.topControl = aggregatePanel; break;
1315                         }
1316
1317                         stackPanel.layout();
1318                 }
1319         }
1320         */
1321
1322         static List<Resource> findComponentTypes(ReadGraph graph) throws DatabaseException {
1323                 DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
1324                 Resource project = Simantics.getProjectResource();
1325                 Resource model = ActiveModels.getPossibleActiveModel(graph, project);
1326
1327                 return QueryIndexUtils.searchByType(graph, model, DN.Mapping_Base);
1328         }
1329
1330         void updatePropertyList() throws DatabaseException {
1331                 Collection<Resource> types = componentType != null ? Collections.singleton(componentType) : componentTypes;
1332                 Set<Pair<String, String>> properties = new HashSet<>();
1333
1334                 Simantics.getSession().syncRequest(new ReadRequest() {
1335                         @Override
1336                         public void run(ReadGraph graph) throws DatabaseException {
1337                                 Layer0 L0 = Layer0.getInstance(graph);
1338
1339                                 for (Resource type : types) {
1340                                         if (type == null)
1341                                                 continue;
1342
1343                                         Resource ct = graph.getPossibleObject(type, DistrictNetworkResource.getInstance(graph).Mapping_ComponentType);
1344                                         if (ct == null)
1345                                                 continue;
1346
1347                                         if (graph.isInstanceOf(ct, L0.String)) {
1348                                                 Resource indexRoot = graph.syncRequest(new IndexRoot(type));
1349                                                 String name = graph.getValue(ct);
1350                                                 ct = GraphUtils.getPossibleChild(graph, indexRoot, name);
1351                                                 if (ct == null)
1352                                                         continue;
1353                                         }
1354
1355                                         for (Resource prop : graph.getObjects(ct, L0.DomainOf)) {
1356                                                 if (!graph.isInstanceOf(prop, StructuralResource2.getInstance(graph).Property))
1357                                                         continue;
1358
1359                                                 // Filter only numeric properties
1360                                                 PropertyInfo info = graph.syncRequest(new PropertyInfoRequest(prop));
1361                                                 if (info != null && info.requiredValueType != null && !isNumericValueType(info.requiredValueType))
1362                                                         continue;
1363
1364                                                 String name = graph.getRelatedValue2(prop, L0.HasName);
1365                                                 String label = graph.getPossibleRelatedValue2(prop, L0.HasLabel);
1366                                                 if (label == null) label = name;
1367
1368                                                 properties.add(Pair.make(label, name));
1369                                         }
1370                                 }
1371                         }
1372                 });
1373
1374                 propertyNames.clear();
1375                 propertyLabels.clear();
1376                 properties.stream().sorted(Comparator.comparing(p -> p.first)).forEachOrdered(p -> {
1377                         propertyLabels.add(p.first);
1378                         propertyNames.add(p.second);
1379                 });
1380         }
1381
1382         static boolean isNumericValueType(String requiredValueType) {
1383                 switch (requiredValueType) {
1384                 case "Integer":
1385                 case "Long":
1386                 case "Double":
1387                 case "Float":
1388                         return true;
1389                 default:
1390                         return false;
1391                 }
1392         }
1393 }