bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/componentTypeEditor/DerivedPropertiesSection.java

   1 package org.simantics.modeling.ui.componentTypeEditor;
   2
   3 import java.util.ArrayList;
   4 import java.util.HashSet;
   5 import java.util.List;
   6 import java.util.Set;
   7
   8 import org.eclipse.jface.layout.GridDataFactory;
   9 import org.eclipse.jface.layout.GridLayoutFactory;
  10 import org.eclipse.jface.layout.TableColumnLayout;
  11 import org.eclipse.jface.viewers.ColumnWeightData;
  12 import org.eclipse.jface.window.DefaultToolTip;
  13 import org.eclipse.jface.window.ToolTip;
  14 import org.eclipse.swt.SWT;
  15 import org.eclipse.swt.custom.TableEditor;
  16 import org.eclipse.swt.events.MouseAdapter;
  17 import org.eclipse.swt.events.MouseEvent;
  18 import org.eclipse.swt.events.SelectionAdapter;
  19 import org.eclipse.swt.events.SelectionEvent;
  20 import org.eclipse.swt.graphics.Color;
  21 import org.eclipse.swt.graphics.Point;
  22 import org.eclipse.swt.graphics.Rectangle;
  23 import org.eclipse.swt.layout.FillLayout;
  24 import org.eclipse.swt.widgets.Button;
  25 import org.eclipse.swt.widgets.Composite;
  26 import org.eclipse.swt.widgets.Control;
  27 import org.eclipse.swt.widgets.Event;
  28 import org.eclipse.swt.widgets.Table;
  29 import org.eclipse.swt.widgets.TableColumn;
  30 import org.eclipse.swt.widgets.TableItem;
  31 import org.eclipse.ui.forms.widgets.Form;
  32 import org.eclipse.ui.forms.widgets.FormToolkit;
  33 import org.eclipse.ui.forms.widgets.Section;
  34 import org.simantics.Simantics;
  35 import org.simantics.db.ReadGraph;
  36 import org.simantics.db.RequestProcessor;
  37 import org.simantics.db.Resource;
  38 import org.simantics.db.WriteGraph;
  39 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
  40 import org.simantics.db.common.request.UniqueRead;
  41 import org.simantics.db.common.request.WriteRequest;
  42 import org.simantics.db.exception.DatabaseException;
  43 import org.simantics.db.layer0.request.PropertyInfo;
  44 import org.simantics.db.layer0.request.PropertyInfoRequest;
  45 import org.simantics.db.layer0.variable.StandardGraphChildVariable;
  46 import org.simantics.db.layer0.variable.StandardGraphPropertyVariable;
  47 import org.simantics.db.layer0.variable.Variable;
  48 import org.simantics.layer0.Layer0;
  49 import org.simantics.modeling.scl.CompileProceduralSCLMonitorRequest;
  50 import org.simantics.modeling.scl.CompileSCLMonitorRequest;
  51 import org.simantics.modeling.userComponent.ComponentTypeCommands;
  52 import org.simantics.scl.runtime.SCLContext;
  53 import org.simantics.scl.runtime.function.Function1;
  54 import org.simantics.scl.runtime.function.Function4;
  55 import org.simantics.structural.stubs.StructuralResource2;
  56 import org.slf4j.Logger;
  57 import org.slf4j.LoggerFactory;
  58
  59 public class DerivedPropertiesSection implements ComponentTypeViewerSection {
  60     private static final String[] COLUMN_NAMES = {
  61             Messages.DerivedPropertiesSection_Name,
  62             Messages.DerivedPropertiesSection_Type,
  63             Messages.DerivedPropertiesSection_Expression,
  64             Messages.DerivedPropertiesSection_Unit,
  65             Messages.DerivedPropertiesSection_Label,
  66             Messages.DerivedPropertiesSection_Description
  67     };
  68     private static final int[] COLUMN_LENGTHS =
  69             new int[] { 120, 100, 100, 70, 100, 100 };
  70     private static final int[] COLUMN_WEIGHTS =
  71             new int[] { 0, 0, 100, 0, 0, 0 };
  72     private static Function4<RequestProcessor, Resource, Resource, String, String> VALIDATE_MONITOR_EXPRESSION =
  73             new Function4<RequestProcessor, Resource, Resource, String, String>() {
  74         @Override
  75         public String apply(RequestProcessor p0, Resource p1, Resource p2, String p3) {
  76             return validateMonitorExpression(p0, p1, p2, p3);
  77         }
  78     };
  79
  80     private static final Logger LOGGER = LoggerFactory.getLogger(DerivedPropertiesSection.class);
  81
  82     ComponentTypeViewerData data;
  83     Table table;
  84     TableColumn[] columns;
  85     TableEditor editor;
  86     Button newProperty;
  87     Button removeProperty;
  88
  89     Section section;
  90
  91     public DerivedPropertiesSection(ComponentTypeViewerData data) {
  92         this.data = data;
  93         FormToolkit tk = data.tk;
  94         Form form = data.form;
  95         section = tk.createSection(form.getBody(), Section.TITLE_BAR | Section.EXPANDED);
  96         section.setLayout(new FillLayout());
  97         section.setText(Messages.DerivedPropertiesSection_DerivedProperties);
  98
  99         Composite sectionBody = tk.createComposite(section);
 100         GridLayoutFactory.fillDefaults().numColumns(2).applyTo(sectionBody);
 101         section.setClient(sectionBody);
 102
 103         Composite tableComposite = tk.createComposite(sectionBody);
 104         GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL).grab(true, true).applyTo(tableComposite);
 105         TableColumnLayout tcl = new TableColumnLayout();
 106         tableComposite.setLayout(tcl);
 107
 108         table = tk.createTable(tableComposite, SWT.MULTI | SWT.FULL_SELECTION | SWT.BORDER);
 109         table.setLinesVisible(true);
 110         table.setHeaderVisible(true);
 111
 112         columns = new TableColumn[COLUMN_NAMES.length];
 113         for(int i=0;i<COLUMN_NAMES.length;++i) {
 114             TableColumn column = new TableColumn(table, SWT.NONE);
 115             columns[i] = column;
 116             tcl.setColumnData(column, new ColumnWeightData(COLUMN_WEIGHTS[i], COLUMN_LENGTHS[i], true));
 117             column.setText(COLUMN_NAMES[i]);
 118         }
 119
 120         // Table editor
 121         editor = new TableEditor(table);
 122         editor.grabHorizontal = true;
 123         editor.grabVertical = true;
 124         editor.horizontalAlignment = SWT.LEFT;
 125         table.addMouseListener(new MouseAdapter() {
 126             @Override
 127             public void mouseDown(MouseEvent e) {
 128                 // Clean up any previous editor control
 129                 Control oldEditor = editor.getEditor();
 130                 if (oldEditor != null) oldEditor.dispose();
 131
 132                 if (data.readOnly)
 133                     return;
 134
 135                 // Relative position
 136                 Rectangle tableBounds = table.getClientArea();
 137                 int rx = e.x - tableBounds.x;
 138                 int ry = e.y - tableBounds.y;
 139
 140                 // Find cell
 141                 TableItem selectedItem = null;
 142                 int selectedColumn = -1;
 143                 Rectangle selectedItemBounds = null;
 144                 for(TableItem item : table.getItems()) {
 145                     for(int column = 0;column < COLUMN_NAMES.length;++column) {
 146                         Rectangle bounds = item.getBounds(column);
 147                         if(bounds.contains(rx, ry)) {
 148                             selectedItemBounds = bounds;
 149                             selectedItem = item;
 150                             selectedColumn = column;
 151                             break;
 152                         }
 153                     }
 154                 }
 155                 if(selectedItem == null) {
 156                     return;
 157                 }
 158
 159                 // Table editor
 160                 final int column = selectedColumn;
 161                 final ComponentTypeViewerPropertyInfo propertyInfo = (ComponentTypeViewerPropertyInfo)selectedItem.getData();
 162                 final Resource resource = propertyInfo.resource;
 163                 switch (column) {
 164                 case 0:
 165                     data.editName(table, editor, propertyInfo, selectedItem, column, ComponentTypeViewerData.PROPERTY_NAME_PATTERN);
 166                     break;
 167
 168                 case 1:
 169                     data.editType(table, editor, propertyInfo, selectedItem, column, null, false);
 170                     break;
 171
 172                 case 2:
 173                     data.editValue(table, editor, propertyInfo, selectedItem, column, propertyInfo.immutable ? null : new StringWriter() {
 174                         @Override
 175                         public void perform(WriteGraph graph, String newValue) throws DatabaseException {
 176                             ComponentTypeCommands.setMonitorExpression(graph, data.componentType, resource, newValue);
 177                         }
 178                     }, VALIDATE_MONITOR_EXPRESSION);
 179                     break;
 180
 181                 case 3:
 182                     data.editUnit(table, editor, propertyInfo, selectedItem, column);
 183                     break;
 184
 185                 case 4:
 186                     data.editValue(table, editor, propertyInfo, selectedItem, column, propertyInfo.immutable ? null : new StringWriter() {
 187                         @Override
 188                         public void perform(WriteGraph graph, String newValue) throws DatabaseException {
 189                             graph.markUndoPoint();
 190                             String value = newValue.isEmpty() ? null : newValue;
 191                             ComponentTypeCommands.setLabel(graph, resource, value);
 192                         }
 193                     }, null);
 194                     break;
 195
 196                 case 5:
 197                     data.editMultilineText(table, editor, propertyInfo, selectedItem, selectedItemBounds, column, new StringWriter() {
 198                         @Override
 199                         public void perform(WriteGraph graph, String newValue) throws DatabaseException {
 200                             graph.markUndoPoint();
 201                             String value = newValue.isEmpty() ? null : newValue;
 202                             ComponentTypeCommands.setDescription(graph, resource, value);
 203                         }
 204                     });
 205                     break;
 206                 }
 207             }
 208
 209         });
 210
 211         // Buttons
 212
 213         Composite buttons = tk.createComposite(sectionBody);
 214         GridDataFactory.fillDefaults().applyTo(buttons);
 215         GridLayoutFactory.fillDefaults().applyTo(buttons);
 216
 217         newProperty = tk.createButton(buttons, Messages.DerivedPropertiesSection_NewProperty, SWT.PUSH);
 218         GridDataFactory.fillDefaults().applyTo(newProperty);
 219         removeProperty = tk.createButton(buttons, Messages.DerivedPropertiesSection_RemoveProperty, SWT.PUSH);
 220         GridDataFactory.fillDefaults().applyTo(removeProperty);
 221
 222         // Actions
 223
 224         newProperty.addSelectionListener(new SelectionAdapter() {
 225             @Override
 226             public void widgetSelected(SelectionEvent e) {
 227                 if(editor.getEditor() != null)
 228                     editor.getEditor().dispose();
 229                 Simantics.getSession().async(new WriteRequest() {
 230                     @Override
 231                     public void perform(WriteGraph graph)
 232                             throws DatabaseException {
 233                         ComponentTypeCommands.createMonitorPropertyWithDefaults(graph, data.componentType);
 234                     }
 235                 });
 236             }
 237         });
 238
 239         removeProperty.addSelectionListener(new SelectionAdapter() {
 240             @Override
 241             public void widgetSelected(SelectionEvent e) {
 242                 if(editor.getEditor() != null)
 243                     editor.getEditor().dispose();
 244                 final List<Resource> propertiesToBeRemoved =
 245                         new ArrayList<>();
 246                 for(TableItem item : table.getSelection())
 247                     propertiesToBeRemoved.add(((ComponentTypeViewerPropertyInfo)item.getData()).resource);
 248                 //System.out.println("remove " + propertiesToBeRemoved.size() + " resources");
 249                 if(!propertiesToBeRemoved.isEmpty())
 250                     Simantics.getSession().async(new WriteRequest() {
 251                         @Override
 252                         public void perform(WriteGraph graph)
 253                                 throws DatabaseException {
 254                             graph.markUndoPoint();
 255                             for(Resource property : propertiesToBeRemoved)
 256                                 ComponentTypeCommands.removeProperty(graph, data.componentType, property);
 257                         }
 258                     });
 259             }
 260         });
 261     }
 262
 263     @Override
 264     public void setReadOnly(boolean readOnly) {
 265         boolean e = !readOnly;
 266         newProperty.setEnabled(e);
 267         removeProperty.setEnabled(e);
 268     }
 269
 270     public static String validateMonitorExpression(final RequestProcessor processor, final Resource componentType, final Resource relation, final String expression) {
 271
 272         if (expression.trim().isEmpty()) {
 273             return Messages.DerivedPropertiesSection_ExpressionIsEmpty;
 274         }
 275
 276         if (expression.trim().isEmpty()) {
 277             return Messages.DerivedPropertiesSection_ExpressionIsEmpty;
 278         }
 279         try {
 280             return processor.sync(new UniqueRead<String>() {
 281
 282                 @Override
 283                 public String perform(ReadGraph graph) throws DatabaseException {
 284
 285                     StructuralResource2 STR = StructuralResource2.getInstance(graph);
 286
 287                     // TODO: this is a bit hackish but should get the job done in most parts and
 288                     // importantly indicates something for the user
 289                     PropertyInfo info = graph.syncRequest(new PropertyInfoRequest(relation), TransientCacheAsyncListener.<PropertyInfo>instance());
 290                     Variable parent = new StandardGraphChildVariable(null, null, componentType) {
 291
 292                         public Resource getType(ReadGraph graph) throws DatabaseException {
 293                             return componentType;
 294                         };
 295
 296                         public Variable getPossibleProperty(ReadGraph graph, String name) throws DatabaseException {
 297                             Variable prop = super.getPossibleProperty(graph, name);
 298                             if (prop != null) {
 299                                 return prop;
 300                             } else {
 301                                 return getChild(graph, name);
 302                             }
 303                         };
 304                     };
 305
 306                     for(Resource literal : graph.getAssertedObjects(componentType, relation)) {
 307
 308                         try {
 309                             Variable context = new StandardGraphPropertyVariable(parent, null, null, info, literal);
 310                             if(graph.isInstanceOf(componentType, STR.ProceduralComponentType)) {
 311                                 CompileProceduralSCLMonitorRequest.compileAndEvaluate(graph, context);
 312                             } else {
 313                                 compileAndEvaluate(graph, context, expression);
 314                             }
 315
 316                         } catch (Exception e) {
 317                             String msg = e.getMessage();
 318                             int index = msg.indexOf(":"); //$NON-NLS-1$
 319                             if(index > 0) msg = msg.substring(index);
 320                             return msg;
 321                         }
 322                     }
 323                     return null;
 324                 }
 325
 326             });
 327         } catch (DatabaseException e) {
 328             LOGGER.error("Could not validate ", e);
 329         }
 330         return null;
 331     }
 332
 333     public static void compileAndEvaluate(ReadGraph graph, Variable context, String expression) throws DatabaseException {
 334         SCLContext sclContext = SCLContext.getCurrent();
 335         Object oldGraph = sclContext.get("graph");
 336         try {
 337             CompileSCLMonitorRequest compileSCLMonitorRequest = new ValidationCompilationRequest(graph, context, expression);
 338             Function1<Variable,Object> exp = graph.syncRequest(compileSCLMonitorRequest);
 339             sclContext.put("graph", graph);
 340             //return exp.apply(context.getParent(graph));
 341         } catch (DatabaseException e) {
 342             throw (DatabaseException)e;
 343         } catch (Throwable t) {
 344             throw new DatabaseException(t);
 345         } finally {
 346             sclContext.put("graph", oldGraph);
 347         }
 348     }
 349
 350     @Override
 351     public void update(ComponentTypePropertiesResult result) {
 352         if (table.isDisposed())
 353             return;
 354
 355         Set<ComponentTypeViewerPropertyInfo> selected = new HashSet<>();
 356         List<TableItem> selectedItems = new ArrayList<TableItem>(selected.size());
 357         for (int i : table.getSelectionIndices()) {
 358             TableItem item = table.getItem(i);
 359             selected.add((ComponentTypeViewerPropertyInfo) item.getData());
 360         }
 361
 362         int topIndex = table.getTopIndex();
 363         table.removeAll();
 364         if(editor.getEditor() != null)
 365             editor.getEditor().dispose();
 366
 367         for(ComponentTypeViewerPropertyInfo info : result.getProperties()) {
 368             boolean immutable = result.isImmutable() || info.immutable;
 369             Color fg = immutable ? table.getDisplay().getSystemColor(SWT.COLOR_DARK_GRAY) : null;
 370             if(info.sectionSpecificData != MONITOR)
 371                 continue;
 372
 373             TableItem item = new TableItem(table, SWT.NONE);
 374
 375             item.setText(0, info.valid != null ? info.name + " (!)" : info.name); //$NON-NLS-1$
 376             item.setText(1, info.type);
 377             item.setText(2, info.expression);
 378             item.setText(3, info.unitString());
 379             item.setText(4, info.label);
 380             item.setText(5, info.description);
 381
 382             if (info.valid != null)
 383                 item.setBackground(table.getDisplay().getSystemColor(SWT.COLOR_RED));
 384
 385             item.setForeground(fg);
 386
 387             item.setData(info);
 388
 389             if (selected.contains(info))
 390                 selectedItems.add(item);
 391         }
 392
 393         new DefaultToolTip(table, ToolTip.NO_RECREATE, false) {
 394
 395             @Override
 396             protected boolean shouldCreateToolTip(Event event) {
 397                 TableItem item = table.getItem(new Point(event.x, event.y));
 398                 if (item != null) {
 399                     ComponentTypeViewerPropertyInfo info = (ComponentTypeViewerPropertyInfo) item.getData();
 400                     return info.valid != null;
 401                 }
 402                 return false;
 403             }
 404
 405             @Override
 406             protected String getText(Event event) {
 407                 TableItem item = table.getItem(new Point(event.x, event.y));
 408                 if (item != null) {
 409                     ComponentTypeViewerPropertyInfo info = (ComponentTypeViewerPropertyInfo) item.getData();
 410                     return info.valid.replaceAll("\n", "");
 411                 }
 412                 return super.getText(event);
 413             }
 414         };
 415
 416         table.setTopIndex(topIndex);
 417         table.setSelection(selectedItems.toArray(new TableItem[selectedItems.size()]));
 418         table.redraw();
 419     }
 420
 421     @Override
 422     public Section getSection() {
 423         return section;
 424     }
 425
 426     @Override
 427     public double getPriority() {
 428         return 100.0;
 429     }
 430
 431     private static final Object MONITOR = new Object();
 432
 433     @Override
 434     public Object getSectionSpecificData(ReadGraph graph,
 435             ComponentTypeViewerPropertyInfo info) throws DatabaseException {
 436         Layer0 L0 = Layer0.getInstance(graph);
 437         StructuralResource2 STR = StructuralResource2.getInstance(graph);
 438         Resource range = graph.getPossibleObject(info.resource, L0.HasRange);
 439         if(range != null && graph.isInstanceOf(range, STR.MonitorValueType))
 440             return MONITOR;
 441         else
 442             return null;
 443     }
 444
 445     @Override
 446     public double getDataPriority() {
 447         return 100.0;
 448     }
 449
 450     private static final class ValidationCompilationRequest extends CompileSCLMonitorRequest {
 451         private final String expression;
 452
 453         private ValidationCompilationRequest(ReadGraph graph, Variable context, String expression)
 454                 throws DatabaseException {
 455             super(graph, context);
 456             this.expression = expression;
 457         }
 458
 459         @Override
 460         protected String getExpressionText(ReadGraph graph) throws DatabaseException {
 461             return expression;
 462         }
 463
 464         @Override
 465         public int hashCode() {
 466             return super.hashCode() + 37 * expression.hashCode();
 467         }
 468
 469         @Override
 470         public boolean equals(Object obj) {
 471             return super.equals(obj) && ((ValidationCompilationRequest)obj).expression.equals(expression);
 472         }
 473     }
 474
 475 }