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

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