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

   1 package org.simantics.sysdyn.ui.properties;\r
   2 \r
   3 import java.util.Collection;\r
   4 import java.util.Collections;\r
   5 import java.util.HashMap;\r
   6 import java.util.Map;\r
   7 \r
   8 import org.eclipse.core.runtime.IAdaptable;\r
   9 import org.eclipse.jface.layout.GridDataFactory;\r
  10 import org.eclipse.jface.layout.GridLayoutFactory;\r
  11 import org.eclipse.jface.resource.JFaceResources;\r
  12 import org.eclipse.jface.resource.LocalResourceManager;\r
  13 import org.eclipse.jface.viewers.ISelectionProvider;\r
  14 import org.eclipse.jface.viewers.IStructuredSelection;\r
  15 import org.eclipse.jface.viewers.StructuredSelection;\r
  16 import org.eclipse.swt.SWT;\r
  17 import org.eclipse.swt.custom.ScrolledComposite;\r
  18 import org.eclipse.swt.events.DisposeEvent;\r
  19 import org.eclipse.swt.events.DisposeListener;\r
  20 import org.eclipse.swt.events.SelectionAdapter;\r
  21 import org.eclipse.swt.events.SelectionEvent;\r
  22 import org.eclipse.swt.graphics.Point;\r
  23 import org.eclipse.swt.widgets.Composite;\r
  24 import org.eclipse.swt.widgets.Event;\r
  25 import org.eclipse.swt.widgets.Group;\r
  26 import org.eclipse.swt.widgets.Label;\r
  27 import org.eclipse.swt.widgets.Listener;\r
  28 import org.eclipse.swt.widgets.Tree;\r
  29 import org.eclipse.swt.widgets.TreeItem;\r
  30 import org.eclipse.ui.IWorkbenchSite;\r
  31 import org.simantics.browsing.ui.BuiltinKeys;\r
  32 import org.simantics.browsing.ui.Column;\r
  33 import org.simantics.browsing.ui.Column.Align;\r
  34 import org.simantics.browsing.ui.NodeContext;\r
  35 import org.simantics.browsing.ui.common.ColumnKeys;\r
  36 import org.simantics.browsing.ui.common.NodeContextBuilder.MapNodeContext;\r
  37 import org.simantics.browsing.ui.swt.SingleSelectionInputSource;\r
  38 import org.simantics.browsing.ui.swt.widgets.Button;\r
  39 import org.simantics.browsing.ui.swt.widgets.GraphExplorerComposite;\r
  40 import org.simantics.browsing.ui.swt.widgets.StringPropertyFactory;\r
  41 import org.simantics.browsing.ui.swt.widgets.StringPropertyModifier;\r
  42 import org.simantics.browsing.ui.swt.widgets.TrackedCombo;\r
  43 import org.simantics.browsing.ui.swt.widgets.TrackedText;\r
  44 import org.simantics.browsing.ui.swt.widgets.impl.ComboModifyListenerImpl;\r
  45 import org.simantics.browsing.ui.swt.widgets.impl.ReadFactoryImpl;\r
  46 import org.simantics.browsing.ui.swt.widgets.impl.SelectionListenerImpl;\r
  47 import org.simantics.browsing.ui.swt.widgets.impl.TextModifyListener;\r
  48 import org.simantics.browsing.ui.swt.widgets.impl.TrackedModifyEvent;\r
  49 import org.simantics.browsing.ui.swt.widgets.impl.Widget;\r
  50 import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupport;\r
  51 import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupportImpl;\r
  52 import org.simantics.db.ReadGraph;\r
  53 import org.simantics.db.Resource;\r
  54 import org.simantics.db.WriteGraph;\r
  55 import org.simantics.db.common.procedure.adapter.DisposableListener;\r
  56 import org.simantics.db.common.utils.ListUtils;\r
  57 import org.simantics.db.exception.DatabaseException;\r
  58 import org.simantics.db.management.ISessionContext;\r
  59 import org.simantics.db.request.Read;\r
  60 import org.simantics.jfreechart.chart.properties.RangeComposite;\r
  61 import org.simantics.jfreechart.chart.properties.VariableExistsValidator;\r
  62 import org.simantics.jfreechart.chart.properties.xyline.AxisAndVariablesExplorerComposite;\r
  63 import org.simantics.layer0.Layer0;\r
  64 import org.simantics.layer0.utils.direct.GraphUtils;\r
  65 import org.simantics.sysdyn.SysdynResource;\r
  66 import org.simantics.sysdyn.ui.properties.widgets.factories.IntegerPropertyFactory;\r
  67 import org.simantics.sysdyn.ui.properties.widgets.factories.IntegerPropertyModifier;\r
  68 import org.simantics.sysdyn.ui.properties.widgets.sensitivity.DistributionPropertyWidget;\r
  69 import org.simantics.sysdyn.ui.properties.widgets.sensitivity.ParameterChildRule;\r
  70 import org.simantics.sysdyn.ui.properties.widgets.sensitivity.VariableNameModifier;\r
  71 import org.simantics.ui.SimanticsUI;\r
  72 import org.simantics.utils.RunnableWithObject;\r
  73 import org.simantics.utils.datastructures.ArrayMap;\r
  74 import org.simantics.utils.ui.AdaptionUtils;\r
  75 import org.simantics.utils.ui.validators.IntegerValidator;\r
  76 \r
  77 /**\r
  78  * Tab for displaying sensitivity analysis experiment properties\r
  79  * \r
  80  * @author Tuomas Miettinen\r
  81  *\r
  82  */\r
  83 public class SensitivityAnalysisExperimentTab extends LabelPropertyTabContributor implements Widget {\r
  84 \r
  85     private GraphExplorerComposite explorer;\r
  86     private WidgetSupportImpl parameterSupport = new WidgetSupportImpl();\r
  87     private ScrolledComposite propertyContainer;\r
  88     private Composite parameterProperties;\r
  89     private Composite content;\r
  90     private Button remove;\r
  91     private Resource experiment;\r
  92     \r
  93     private boolean dirty = false;\r
  94     \r
  95     private DisposableListener<Collection<Resource>> contentListener;\r
  96 \r
  97     @Override\r
  98     public void createControls(Composite body, IWorkbenchSite site,\r
  99             final ISessionContext context, WidgetSupport support) {\r
 100         support.register(this);\r
 101 \r
 102         Composite composite = new RemoveFocusBeforeExperimentComposite(body, SWT.NONE);\r
 103         GridDataFactory.fillDefaults().grab(true, true).applyTo(composite);\r
 104         GridLayoutFactory.fillDefaults().margins(3, 3).applyTo(composite);\r
 105         \r
 106         // Scrolled composite for displaying properties of a selection in explorer\r
 107         propertyContainer = new ScrolledComposite(composite, SWT.H_SCROLL | SWT.V_SCROLL);\r
 108         GridDataFactory.fillDefaults().grab(true, true).applyTo(propertyContainer);\r
 109         GridLayoutFactory.fillDefaults().applyTo(propertyContainer);\r
 110         propertyContainer.setExpandHorizontal(true);\r
 111         propertyContainer.setExpandVertical(true);\r
 112         \r
 113         content = new Composite(propertyContainer, SWT.NONE);\r
 114         GridDataFactory.fillDefaults().grab(true, true).applyTo(content);\r
 115         GridLayoutFactory.fillDefaults().numColumns(2).applyTo(content);\r
 116 \r
 117         // Label\r
 118         Composite labelComposite = new Composite(content, SWT.NONE);\r
 119         GridDataFactory.fillDefaults().grab(true, false).span(2, 1).applyTo(labelComposite);\r
 120         GridLayoutFactory.fillDefaults().numColumns(4).applyTo(labelComposite);\r
 121         Label label = new Label(labelComposite, SWT.NONE);\r
 122         label.setText("Name");\r
 123 \r
 124         TrackedText name = new TrackedText(labelComposite, support, SWT.BORDER);\r
 125         name.setTextFactory(new StringPropertyFactory(Layer0.URIs.HasLabel));\r
 126         name.addModifyListener(new StringPropertyModifier(context, Layer0.URIs.HasLabel));\r
 127         name.addModifyListener(new StringPropertyModifier(context, Layer0.URIs.HasName));\r
 128         name.setColorProvider(new SysdynBasicColorProvider(new LocalResourceManager(JFaceResources.getResources(), name.getWidget())));\r
 129         GridDataFactory.fillDefaults().grab(true, false).applyTo(name.getWidget());\r
 130         \r
 131         label = new Label(labelComposite, SWT.NONE);\r
 132         label.setText("Seed");\r
 133         \r
 134         TrackedText seed = new TrackedText(labelComposite, support, SWT.BORDER);\r
 135         seed.setTextFactory(new IntegerPropertyFactory(SysdynResource.URIs.SensitivityAnalysisExperiment_randomSeed));\r
 136         seed.addModifyListener(new IntegerPropertyModifier(context, SysdynResource.URIs.SensitivityAnalysisExperiment_randomSeed));\r
 137         seed.setInputValidator(new IntegerValidator());\r
 138         seed.setColorProvider(new SysdynBasicColorProvider(new LocalResourceManager(JFaceResources.getResources(), seed.getWidget())));\r
 139         GridDataFactory.fillDefaults().hint(80, SWT.DEFAULT).applyTo(seed.getWidget());\r
 140 \r
 141 \r
 142         // (Ontology-based) GraphExplorer displaying range axis and variables mapped to those axis\r
 143         explorer = new AxisAndVariablesExplorerComposite(ArrayMap.keys(\r
 144                 "displaySelectors", "displayFilter", "treeView").values(false, false, true), site, content, support, SWT.FULL_SELECTION | SWT.BORDER | SWT.SINGLE);\r
 145         \r
 146         explorer.setBrowseContexts(SysdynResource.URIs.SensitivityAnalysisExperiment_ParameterBrowseContext);\r
 147         explorer.setInputSource(new SingleSelectionInputSource(\r
 148                 Resource.class));\r
 149         explorer.getExplorer().setAutoExpandLevel(2); // Expand everything in the beginning\r
 150         explorer.setColumns( new Column[] { new Column(ColumnKeys.SINGLE, Align.LEFT, 0, "", true) });\r
 151         explorer.finish();\r
 152         \r
 153         \r
 154         ((Tree)explorer.getExplorerControl()).addSelectionListener(new SelectionAdapter() {\r
 155             public void widgetSelected(SelectionEvent e) {\r
 156                 updateSelection(context);\r
 157             }\r
 158         });\r
 159 \r
 160         /* Listener for displaying information of the first parameter during view initialization\r
 161          * The view does not have focus, so normal selection listener mechanisms do not work. \r
 162          * Need to do it the hard way. \r
 163          */ \r
 164         Listener listener = new Listener() {\r
 165 \r
 166             boolean flag = false;\r
 167             @Override\r
 168             public void handleEvent(Event event) {\r
 169                 switch (event.type) {\r
 170                     case SWT.Activate:\r
 171                     case SWT.Show:\r
 172                     case SWT.Paint:\r
 173                     {\r
 174                         if(!flag && ((Tree) event.widget).getItems().length > 0) {\r
 175                             flag = true;\r
 176                             TreeItem item = ((Tree) event.widget).getItems()[0];\r
 177                             IAdaptable adaptable = (IAdaptable) item.getData();\r
 178                             MapNodeContext nc = (MapNodeContext) adaptable.getAdapter(NodeContext.class);\r
 179                             parameterSupport.fireInput(context, new StructuredSelection(nc.getConstant(BuiltinKeys.INPUT)));\r
 180                             propertyContainer.setContent(content);\r
 181                             Point size = content.computeSize(SWT.DEFAULT, SWT.DEFAULT);\r
 182                             propertyContainer.setMinSize(size);\r
 183                         }\r
 184                     }\r
 185                 }\r
 186             }\r
 187         };\r
 188 \r
 189         Tree tree = explorer.getExplorerControl();\r
 190         tree.addListener(SWT.Activate, listener);\r
 191         tree.addListener(SWT.Show, listener);\r
 192         tree.addListener(SWT.Paint,listener);\r
 193         /* End listener for displaying information for first parameter during view initialization*/\r
 194         \r
 195         explorer.addDisposeListener(new DisposeListener() {\r
 196             \r
 197             @Override\r
 198             public void widgetDisposed(DisposeEvent e) {\r
 199                 if(contentListener != null)\r
 200                     contentListener.dispose();              \r
 201             }\r
 202         });\r
 203         \r
 204         \r
 205         GridDataFactory.fillDefaults().hint(250, SWT.DEFAULT).grab(false, true).applyTo(explorer);\r
 206 \r
 207         Group parameterPropertyGroup = new Group(content, SWT.NONE);\r
 208         GridDataFactory.fillDefaults().grab(true, false).applyTo(parameterPropertyGroup);\r
 209         GridLayoutFactory.fillDefaults().applyTo(parameterPropertyGroup);\r
 210         \r
 211         parameterProperties = new Composite(parameterPropertyGroup, SWT.NONE);\r
 212         GridDataFactory.fillDefaults().grab(true, false).applyTo(parameterProperties);\r
 213         GridLayoutFactory.fillDefaults().numColumns(2).applyTo(parameterProperties);\r
 214 \r
 215         // Label\r
 216         label = new Label(parameterProperties, SWT.NONE);\r
 217         label.setText("Variable:");\r
 218         GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).applyTo(label);\r
 219 \r
 220         TrackedText variable = new TrackedText(parameterProperties, parameterSupport, SWT.BORDER);\r
 221         variable.setTextFactory(new StringPropertyFactory(SysdynResource.URIs.SensitivityAnalysisExperiment_Parameter_variable));\r
 222         variable.addModifyListener(new VariableNameModifier(variable.getWidget(), parameterSupport, SysdynResource.URIs.SensitivityAnalysisExperiment_Parameter_variable, SysdynResource.URIs.SensitivityAnalysisExperiment_Parameter_indexes));\r
 223         variable.setColorProvider(new SysdynBasicColorProvider(new LocalResourceManager(JFaceResources.getResources(), variable.getWidget())));\r
 224         variable.setInputValidator(new VariableExistsValidator(parameterSupport, variable));\r
 225         GridDataFactory.fillDefaults().grab(true, false).applyTo(variable.getWidget());\r
 226         \r
 227         label = new Label(parameterProperties, SWT.NONE);\r
 228         label.setText("Range:");\r
 229         GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).applyTo(label);\r
 230         \r
 231         RangeComposite rangeComposite = new RangeComposite(parameterProperties, context, parameterSupport, SWT.NONE) {\r
 232             @Override\r
 233             protected Resource getIndexRelation(ReadGraph graph) {\r
 234                 return SysdynResource.getInstance(graph).SensitivityAnalysisExperiment_Parameter_indexes;\r
 235             }\r
 236         };\r
 237         GridDataFactory.fillDefaults().grab(true, false).applyTo(rangeComposite);\r
 238         \r
 239 //        TrackedText variable = new TrackedText(parameterProperties, parameterSupport, SWT.BORDER);\r
 240 //        variable.setTextFactory(new StringPropertyFactory(SysdynResource.URIs.SensitivityAnalysisExperiment_Parameter_variable));\r
 241 //        variable.addModifyListener(new StringPropertyModifier(context, SysdynResource.URIs.SensitivityAnalysisExperiment_Parameter_variable));\r
 242 //        variable.setColorProvider(new SysdynBasicColorProvider(new LocalResourceManager(JFaceResources.getResources(), variable.getWidget())));\r
 243 //        GridDataFactory.fillDefaults().grab(true, false).applyTo(variable.getWidget());\r
 244 \r
 245         label = new Label(parameterProperties, SWT.NONE);\r
 246         label.setText("Number of values:");\r
 247         GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).applyTo(label);\r
 248 \r
 249 \r
 250         TrackedText numValues = new TrackedText(parameterProperties, parameterSupport, SWT.BORDER);\r
 251         numValues.setTextFactory(new IntegerPropertyFactory(SysdynResource.URIs.SensitivityAnalysisExperiment_Parameter_numberOfValues));\r
 252         numValues.addModifyListener(new IntegerPropertyModifier(context, SysdynResource.URIs.SensitivityAnalysisExperiment_Parameter_numberOfValues));\r
 253         numValues.setInputValidator(new IntegerValidator());\r
 254         numValues.setColorProvider(new SysdynBasicColorProvider(new LocalResourceManager(JFaceResources.getResources(), numValues.getWidget())));\r
 255         GridDataFactory.fillDefaults().align(SWT.BEGINNING, SWT.CENTER).hint(80, SWT.DEFAULT).applyTo(numValues.getWidget());\r
 256         \r
 257         label = new Label(parameterProperties, SWT.NONE);\r
 258         label.setText("Distribution:");\r
 259         GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).applyTo(label);\r
 260 \r
 261         TrackedCombo distributionSelector = new TrackedCombo(parameterProperties, parameterSupport, SWT.DROP_DOWN);\r
 262         distributionSelector.setItemFactory(new ReadFactoryImpl<Resource, Map<String,Object>>() {\r
 263 \r
 264             @Override\r
 265             public Map<String, Object> perform(ReadGraph graph, Resource input) throws DatabaseException {\r
 266                 SysdynResource SR = SysdynResource.getInstance(graph);\r
 267                 Map<String, Object> items = new HashMap<String, Object>();\r
 268 \r
 269                 items.put("Normal", SR.NormalDistribution);\r
 270                 items.put("Uniform", SR.UniformDistribution);\r
 271                 items.put("Interval", SR.Interval);\r
 272 \r
 273                 return items;\r
 274             }\r
 275 \r
 276         });\r
 277 \r
 278         distributionSelector.setSelectionFactory(new ReadFactoryImpl<Resource, String>() {\r
 279 \r
 280             @Override\r
 281             public String perform(ReadGraph graph, Resource parameter) throws DatabaseException {\r
 282                 SysdynResource SR = SysdynResource.getInstance(graph);\r
 283                 Resource distribution = graph.getPossibleObject(parameter, SR.SensitivityAnalysisExperiment_Parameter_propabilityDistribution);\r
 284                 if(distribution == null)\r
 285                     return null;\r
 286                 \r
 287                 if(graph.isInstanceOf(distribution, SR.UniformDistribution))\r
 288                     return "Uniform";\r
 289                 else if(graph.isInstanceOf(distribution, SR.NormalDistribution))\r
 290                     return "Normal";\r
 291                 else if(graph.isInstanceOf(distribution, SR.Interval))\r
 292                     return "Interval";\r
 293                 else\r
 294                     return "";\r
 295 \r
 296             }\r
 297         });\r
 298 \r
 299         distributionSelector.addModifyListener(new ComboModifyListenerImpl<Resource>() {\r
 300 \r
 301             @Override\r
 302             public void applyText(WriteGraph graph, Resource input, String text)\r
 303                     throws DatabaseException {\r
 304                 if(text == null || text.isEmpty())\r
 305                     return;\r
 306 \r
 307                 SysdynResource SR = SysdynResource.getInstance(graph);\r
 308 \r
 309                 Resource type = SR.UniformDistribution;\r
 310 \r
 311                 if("Normal".equals(text))\r
 312                     type = SR.NormalDistribution;\r
 313                 else if("Interval".equals(text))\r
 314                     type = SR.Interval; \r
 315 \r
 316                 graph.deny(input, SR.SensitivityAnalysisExperiment_Parameter_propabilityDistribution);\r
 317 \r
 318                 GraphUtils.create2(graph, type,\r
 319                         SR.SensitivityAnalysisExperiment_Parameter_propabilityDistribution_Inverse, input);\r
 320 \r
 321                 dirty = true;\r
 322             }\r
 323         });\r
 324 \r
 325         distributionSelector.addModifyListener(new TextModifyListener() {\r
 326 \r
 327             @Override\r
 328             public void modifyText(TrackedModifyEvent e) {\r
 329                 if(dirty) {\r
 330                     parameterSupport.update();\r
 331                     dirty = false;\r
 332                     propertyContainer.setContent(content);\r
 333                     Point size = content.computeSize(SWT.DEFAULT, SWT.DEFAULT);\r
 334                     propertyContainer.setMinSize(size);\r
 335                 }\r
 336             }\r
 337         });\r
 338 \r
 339         label = new Label(parameterProperties, SWT.NONE);\r
 340         \r
 341         DistributionPropertyWidget dpw = new DistributionPropertyWidget(parameterProperties, context, parameterSupport, SWT.NONE);\r
 342         GridDataFactory.fillDefaults().grab(true, true).applyTo(dpw);\r
 343 \r
 344         \r
 345         Composite buttonComposite = new Composite(content, SWT.NONE);\r
 346         GridDataFactory.fillDefaults().applyTo(buttonComposite);\r
 347         GridLayoutFactory.fillDefaults().numColumns(3).applyTo(buttonComposite);\r
 348         \r
 349         \r
 350         Button addVariable = new Button(buttonComposite, support, SWT.NONE);\r
 351         addVariable.setText("Add parameter");\r
 352         addVariable.addSelectionListener(new SelectionListenerImpl<Resource>(context) {\r
 353 \r
 354             @Override\r
 355             public void apply(WriteGraph graph, Resource input) throws DatabaseException {\r
 356                 SysdynResource sr = SysdynResource.getInstance(graph);\r
 357                 Layer0 L0 = Layer0.getInstance(graph);\r
 358                 \r
 359                 Resource distribution = GraphUtils.create2(graph, sr.UniformDistribution,\r
 360                         sr.UniformDistribution_minValue, 0.0,\r
 361                         sr.UniformDistribution_maxValue, 10.0);\r
 362                 \r
 363                 Resource parameter = GraphUtils.create2(graph, sr.SensitivityAnalysisExperiment_Parameter,\r
 364                         sr.SensitivityAnalysisExperiment_Parameter_propabilityDistribution, distribution,\r
 365                         sr.SensitivityAnalysisExperiment_Parameter_variable, "",\r
 366                         sr.SensitivityAnalysisExperiment_Parameter_numberOfValues, 10,\r
 367                         L0.PartOf, input);\r
 368                 \r
 369                 Resource parameterList = graph.getPossibleObject(input, sr.SensitivityAnalysisExperiment_parameterList);\r
 370                 ListUtils.insertBack(graph, parameterList, Collections.singleton(parameter));\r
 371             }\r
 372         });\r
 373 \r
 374         remove = new Button(buttonComposite, parameterSupport, SWT.NONE);\r
 375         remove.setText("Remove");\r
 376         remove.addSelectionListener(new SelectionListenerImpl<Resource>(context) {\r
 377 \r
 378             @Override\r
 379             public void apply(WriteGraph graph, Resource input) throws DatabaseException {\r
 380                 if(input == null)\r
 381                     return;\r
 382                 \r
 383                 SysdynResource sr = SysdynResource.getInstance(graph);\r
 384                 Layer0 L0 = Layer0.getInstance(graph);\r
 385                 \r
 386                 Resource experiment = graph.getPossibleObject(input, L0.PartOf);\r
 387                 Resource parameterList = graph.getPossibleObject(experiment, sr.SensitivityAnalysisExperiment_parameterList);\r
 388                 \r
 389                 if(ListUtils.toList(graph, parameterList).size() > 1)\r
 390                     ListUtils.removeElement(graph, parameterList, input);\r
 391  \r
 392             }\r
 393             \r
 394         });\r
 395         \r
 396 \r
 397         propertyContainer.setContent(content);\r
 398         Point size = content.computeSize(SWT.DEFAULT, SWT.DEFAULT);\r
 399         propertyContainer.setMinSize(size);\r
 400 \r
 401     }\r
 402 \r
 403 \r
 404     /**\r
 405      * Updates the content of propertyContainer  \r
 406      * @param context\r
 407      */\r
 408     private void updateSelection(ISessionContext context) {\r
 409         ISelectionProvider selectionProvider = (ISelectionProvider)explorer.getAdapter(ISelectionProvider.class);\r
 410         IStructuredSelection selection = (IStructuredSelection)selectionProvider.getSelection();\r
 411         parameterSupport.fireInput(context, selection);\r
 412 \r
 413         propertyContainer.setContent(content);\r
 414         Point size = content.computeSize(SWT.DEFAULT, SWT.DEFAULT);\r
 415         propertyContainer.setMinSize(size);\r
 416     }\r
 417 \r
 418 \r
 419     @Override\r
 420     public void setInput(ISessionContext context, Object input) {\r
 421         experiment = AdaptionUtils.adaptToSingle(input, Resource.class);\r
 422         if(contentListener == null) {\r
 423             contentListener = new DisposableListener<Collection<Resource>>() {\r
 424 \r
 425                 @Override\r
 426                 public void execute(Collection<Resource> result) {\r
 427                     if(remove != null && !remove.getWidget().isDisposed() && result != null) {\r
 428                         remove.getWidget().getDisplay().asyncExec(new RunnableWithObject(result) {\r
 429                             @Override\r
 430                             public void run() {\r
 431                                 if(!remove.getWidget().isDisposed()) {\r
 432                                     @SuppressWarnings("unchecked")\r
 433                                     Collection<Resource> result = (Collection<Resource>) getObject();\r
 434                                     if(result.size() > 1)\r
 435                                         remove.getWidget().setEnabled(true);\r
 436                                     else\r
 437                                         remove.getWidget().setEnabled(false);\r
 438                                 }\r
 439                             }\r
 440                         });\r
 441 \r
 442                     }\r
 443                 }\r
 444 \r
 445                 @Override\r
 446                 public void exception(Throwable t) {\r
 447                     t.printStackTrace();\r
 448                 }\r
 449             };\r
 450 \r
 451             SimanticsUI.getSession().asyncRequest(new Read<Collection<Resource>> () {\r
 452 \r
 453                 @SuppressWarnings("unchecked")\r
 454                 @Override\r
 455                 public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {\r
 456                     return (Collection<Resource>) new ParameterChildRule().getChildren(graph, experiment);\r
 457                 }\r
 458 \r
 459             }, contentListener);\r
 460         }\r
 461 \r
 462         \r
 463     }\r
 464 \r
 465 }\r