List of usage examples for org.eclipse.jface.viewers TreeViewer getSelection
@Override
public ISelection getSelection()
AbstractTreeViewer implementation of this method returns the result as an ITreeSelection. From source file:com.isencia.passerelle.workbench.model.editor.ui.views.ActorTreeMenuProvider.java
License:Open Source License
/** * Builds the context menu. Single selection menu and multiple selection menu are created while selecting just single * element or multiple elements/*w w w . j a v a 2 s . c o m*/ * * * @param menu * the menu */ public void buildContextMenu(IMenuManager menu) { menu.add(new Separator(GEFActionConstants.GROUP_EDIT)); // IAction action = getActionRegistry().getAction( // ActionFactory.DELETE.getId()); // if (action != null && action.isEnabled()) TreeViewer tree = (TreeViewer) getViewer(); TreeSelection treeSelection = (TreeSelection) tree.getSelection(); Object element = treeSelection.getFirstElement(); if (element instanceof SubModelPaletteItemDefinition) { createCompositeMenu(menu, element); } else if (element instanceof PaletteGroup) { if (((PaletteGroup) element).getId().equals("com.isencia.passerelle.actor.actorgroup.submodels")) { createCompositeMenu(menu, element); } } }
From source file:com.iw.plugins.spindle.html.HTMLContentOutlinePage.java
License:Mozilla Public License
private void fillContextMenu(IMenuManager manager) { TreeViewer viewer = (TreeViewer) getTreeViewer(); IStructuredSelection selection = (IStructuredSelection) viewer.getSelection(); IFile file = Utils.findRelatedComponent(documentFile); IStructuredSelection canCreateSelection = filterSelection(file, selection); if (canCreateSelection.isEmpty() && selection.size() == 1) { ILabelProvider provider = (ILabelProvider) getTreeViewer().getLabelProvider(); openAction.configure(file, provider.getText(selection.getFirstElement())); manager.add(openAction);/*from w w w . j a va 2s .c o m*/ } else { createAction.configure(file, canCreateSelection); manager.add(createAction); } }
From source file:com.mindquarry.desktop.preferences.dialog.FilteredPreferenceDialog.java
License:Open Source License
/** * Add the listeners to the tree viewer. * //from ww w. ja v a 2 s .co m * @param viewer * * @since 3.1 */ protected void addListeners(final TreeViewer viewer) { viewer.addPostSelectionChangedListener(new ISelectionChangedListener() { private void handleError() { try { // remove the listener temporarily so that the events caused // by the error handling dont further cause error handling // to occur. viewer.removePostSelectionChangedListener(this); showPageFlippingAbortDialog(); selectCurrentPageAgain(); clearSelectedNode(); } finally { viewer.addPostSelectionChangedListener(this); } } public void selectionChanged(SelectionChangedEvent event) { Object selection = getSingleSelection(event.getSelection()); if (selection instanceof IPreferenceNode) { if (!isCurrentPageValid()) { handleError(); } else if (!showPage((IPreferenceNode) selection)) { // Page flipping wasn't successful handleError(); } else { // Everything went well lastSuccessfulNode = (IPreferenceNode) selection; } } } }); ((Tree) viewer.getControl()).addSelectionListener(new SelectionAdapter() { @Override public void widgetDefaultSelected(final SelectionEvent event) { ISelection selection = viewer.getSelection(); if (selection.isEmpty()) { return; } IPreferenceNode singleSelection = getSingleSelection(selection); boolean expanded = viewer.getExpandedState(singleSelection); viewer.setExpandedState(singleSelection, !expanded); } }); // Register help listener on the tree to use context sensitive help viewer.getControl().addHelpListener(new HelpListener() { public void helpRequested(HelpEvent event) { // call perform help on the current page if (currentPage != null) { currentPage.performHelp(); } } }); }
From source file:com.nokia.carbide.cpp.internal.project.ui.views.SymbianProjectNavigatorView.java
License:Open Source License
public void setWorkingSet(IWorkingSet workingSet) { TreeViewer treeViewer = getViewer(); Object[] expanded = treeViewer.getExpandedElements(); ISelection selection = treeViewer.getSelection(); workingSetFilter.setWorkingSet(workingSet); treeViewer.refresh();/*w w w.j a v a2s .co m*/ treeViewer.setExpandedElements(expanded); if (selection.isEmpty() == false && selection instanceof IStructuredSelection) { IStructuredSelection structuredSelection = (IStructuredSelection) selection; treeViewer.reveal(structuredSelection.getFirstElement()); } }
From source file:com.safi.workshop.sqlexplorer.plugin.views.DatabaseStructureView.java
License:Open Source License
/** * Add a new session to the database structure view. This will create a new tab for the * session./*from ww w . jav a2 s .co m*/ * * @param session */ private void addSession(final MetaDataSession session) throws SQLCannotConnectException { if (_allSessions.contains(session)) return; try { session.getMetaData(); session.setAutoCommit(true); } catch (SQLCannotConnectException e) { SQLExplorerPlugin.error(e); throw e; } catch (SQLException e) { SQLExplorerPlugin.error(e); MessageDialog.openError(getSite().getShell(), "Cannot connect", e.getMessage()); } DatabaseNode rootNode = session.getRoot(); if (rootNode == null) return; _allSessions.add(session); if (_filterAction != null) { _filterAction.setEnabled(true); } if (_tabFolder == null || _tabFolder.isDisposed()) { clearParent(); // create tab folder for different sessions _tabFolder = new CTabFolder(_parent, SWT.TOP | SWT.CLOSE); // add listener to keep both views on the same active tab _tabFolder.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { // set the selected node in the detail view. DatabaseDetailView detailView = (DatabaseDetailView) getSite().getPage() .findView(SqlexplorerViewConstants.SQLEXPLORER_DBDETAIL); synchronizeDetailView(detailView); } }); // Set up a gradient background for the selected tab Display display = getSite().getShell().getDisplay(); _tabFolder.setSelectionBackground( new Color[] { display.getSystemColor(SWT.COLOR_WHITE), new Color(null, 211, 225, 250), new Color(null, 175, 201, 246), IConstants.TAB_BORDER_COLOR }, new int[] { 25, 50, 75 }, true); // Add a listener to handle the close button on each tab _tabFolder.addCTabFolder2Listener(new CTabFolder2Adapter() { @Override public void close(CTabFolderEvent event) { CTabItem tabItem = (CTabItem) event.item; TabData tabData = (TabData) tabItem.getData(); _allSessions.remove(tabData.session); event.doit = true; } }); _parent.layout(); _parent.redraw(); } // create tab final CTabItem tabItem = new CTabItem(_tabFolder, SWT.NULL); TabData tabData = new TabData(); tabItem.setData(tabData); tabData.session = session; // set tab text String labelText = session.getUser().getDescription(); tabItem.setText(labelText); // create composite for our outline Composite composite = new Composite(_tabFolder, SWT.NULL); composite.setLayout(new FillLayout()); tabItem.setControl(composite); // create outline final TreeViewer treeViewer = new TreeViewer(composite, SWT.V_SCROLL | SWT.H_SCROLL | SWT.MULTI | SWT.BORDER); tabData.treeViewer = treeViewer; // add drag support // TODO improve drag support options Transfer[] transfers = new Transfer[] { TableNodeTransfer.getInstance() }; treeViewer.addDragSupport(DND.DROP_COPY, transfers, new DragSourceListener() { public void dragFinished(DragSourceEvent event) { System.out.println("$drag finished"); TableNodeTransfer.getInstance().setSelection(null); } public void dragSetData(DragSourceEvent event) { Object sel = ((IStructuredSelection) treeViewer.getSelection()).getFirstElement(); event.data = sel; } public void dragStart(DragSourceEvent event) { event.doit = !treeViewer.getSelection().isEmpty(); if (event.doit) { Object sel = ((IStructuredSelection) treeViewer.getSelection()).getFirstElement(); if (!(sel instanceof TableNode)) { event.doit = false; } else { TableNode tn = (TableNode) sel; TableNodeTransfer.getInstance().setSelection(tn); if (!tn.isTable()) event.doit = false; } } } }); // use hash lookup to improve performance treeViewer.setUseHashlookup(true); // add content and label provider treeViewer.setContentProvider(new DBTreeContentProvider()); treeViewer.setLabelProvider(new DBTreeLabelProvider()); // set input session treeViewer.setInput(rootNode); // add selection change listener, so we can update detail view as // required. treeViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent ev) { // set the selected node in the detail view. DatabaseDetailView detailView = (DatabaseDetailView) getSite().getPage() .findView(SqlexplorerViewConstants.SQLEXPLORER_DBDETAIL); synchronizeDetailView(detailView); } }); // bring detail to front on doubleclick of node treeViewer.addDoubleClickListener(new IDoubleClickListener() { public void doubleClick(DoubleClickEvent event) { try { // find view DatabaseDetailView detailView = (DatabaseDetailView) getSite().getPage() .findView(SqlexplorerViewConstants.SQLEXPLORER_DBDETAIL); if (detailView == null) { getSite().getPage().showView(SqlexplorerViewConstants.SQLEXPLORER_DBDETAIL); } getSite().getPage().bringToTop(detailView); synchronizeDetailView(detailView); } catch (Exception e) { // fail silent } } }); // add expand/collapse listener treeViewer.addTreeListener(new ITreeViewerListener() { public void treeCollapsed(TreeExpansionEvent event) { // refresh the node to change image INode node = (INode) event.getElement(); node.setExpanded(false); TreeViewer viewer = (TreeViewer) event.getSource(); viewer.update(node, null); } public void treeExpanded(TreeExpansionEvent event) { // refresh the node to change image INode node = (INode) event.getElement(); node.setExpanded(true); TreeViewer viewer = (TreeViewer) event.getSource(); viewer.update(node, null); } }); // set new tab as the active one _tabFolder.setSelection(_tabFolder.getItemCount() - 1); // update detail view DatabaseDetailView detailView = (DatabaseDetailView) getSite().getPage() .findView(SqlexplorerViewConstants.SQLEXPLORER_DBDETAIL); if (detailView != null) { // synchronze detail view with new session synchronizeDetailView(detailView); // bring detail to top of the view stack getSite().getPage().bringToTop(detailView); } // refresh view composite.layout(); _tabFolder.layout(); _tabFolder.redraw(); // bring this view to top of the view stack, above detail if needed.. getSite().getPage().bringToTop(this); // add context menu final DBTreeActionGroup actionGroup = new DBTreeActionGroup(treeViewer); MenuManager menuManager = new MenuManager("DBTreeContextMenu"); menuManager.setRemoveAllWhenShown(true); Menu contextMenu = menuManager.createContextMenu(treeViewer.getTree()); treeViewer.getTree().setMenu(contextMenu); menuManager.addMenuListener(new IMenuListener() { public void menuAboutToShow(IMenuManager manager) { actionGroup.fillContextMenu(manager); } }); }
From source file:de.rowlo.diffeclipse.controller.DiffEclipseFormController.java
License:Open Source License
protected void enableButtonExtractMissingExtensions() { TreeViewer treeViewer = getForm().getTreeViewerMissingExtensions(); ISelection selection = treeViewer.getSelection(); boolean enabled = !selection.isEmpty(); Button button = getForm().getButtonExtractMissingExtensions(); button.setEnabled(enabled);/*from www.jav a 2s .c om*/ }
From source file:de.walware.ecommons.ui.util.ViewerUtil.java
License:Open Source License
public static void scheduleStandardSelection(final TreeViewer viewer) { viewer.getControl().getDisplay().asyncExec(new Runnable() { @Override/*from w w w. j a v a 2 s. com*/ public void run() { final ISelection selection = viewer.getSelection(); if (selection.isEmpty()) { if (viewer.getTree().getItemCount() > 0) { final TreeItem item = viewer.getTree().getItem(0); viewer.setSelection(new TreeSelection(new TreePath(new Object[] { item.getData() }))); viewer.setExpandedState(item.getData(), true); } else { viewer.setSelection(new StructuredSelection()); } } } }); }
From source file:edu.washington.cs.cupid.wizards.ui.MappingPage.java
License:Open Source License
/** * Returns the capability selected from the capability listing; returns <tt>null</tt> * if no element is selected.//from w w w. j av a2s .c o m * @param viewer the capability viewer * @return the capability selected from the capability listing, or <tt>null</tt> if no element is selected */ private ISerializableCapability selectedCapability(TreeViewer viewer) { Object selected = ((IStructuredSelection) viewer.getSelection()).getFirstElement(); if (selected == null) { return null; } else if (selected instanceof ISerializableCapability) { return (ISerializableCapability) selected; } else if (selected instanceof ICapability) { return new DynamicSerializablePipeline(null, null, Lists.<Serializable>newArrayList(((ICapability) selected).getName()), Lists.<ICapabilityArguments>newArrayList(CapabilityArguments.NONE)); } else if (selected instanceof DerivedCapability) { return ((DerivedCapability) selected).toPipeline(); } else { throw new RuntimeException("Unexpected tree entry"); } }
From source file:es.cv.gvcase.emf.ui.common.dialogs.FeatureEditorDialog.java
License:Open Source License
@Override protected Control createDialogArea(Composite parent) { Composite contents = (Composite) super.createDialogArea(parent); GridLayout contentsGridLayout = (GridLayout) contents.getLayout(); contentsGridLayout.numColumns = 3;//from ww w . j a v a 2s . c o m GridData contentsGridData = (GridData) contents.getLayoutData(); contentsGridData.horizontalAlignment = SWT.FILL; contentsGridData.verticalAlignment = SWT.FILL; Text patternText = null; if (choiceOfValues != null) { Group filterGroupComposite = new Group(contents, SWT.NONE); filterGroupComposite.setText(EMFEditUIPlugin.INSTANCE.getString("_UI_Choices_pattern_group")); filterGroupComposite.setLayout(new GridLayout(2, false)); filterGroupComposite.setLayoutData(new GridData(SWT.FILL, SWT.DEFAULT, true, false, 3, 1)); Label label = new Label(filterGroupComposite, SWT.NONE); label.setText(EMFEditUIPlugin.INSTANCE.getString("_UI_Choices_pattern_label")); patternText = new Text(filterGroupComposite, SWT.BORDER); patternText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); } Composite choiceComposite = new Composite(contents, SWT.NONE); { GridData data = new GridData(SWT.FILL, SWT.FILL, true, true); data.horizontalAlignment = SWT.END; choiceComposite.setLayoutData(data); GridLayout layout = new GridLayout(); data.horizontalAlignment = SWT.FILL; layout.marginHeight = 0; layout.marginWidth = 0; layout.numColumns = 1; choiceComposite.setLayout(layout); } Label choiceLabel = new Label(choiceComposite, SWT.NONE); choiceLabel.setText(choiceOfValues == null ? EMFEditUIPlugin.INSTANCE.getString("_UI_Value_label") : EMFEditUIPlugin.INSTANCE.getString("_UI_Choices_label")); GridData choiceLabelGridData = new GridData(); choiceLabelGridData.verticalAlignment = SWT.FILL; choiceLabelGridData.horizontalAlignment = SWT.FILL; choiceLabel.setLayoutData(choiceLabelGridData); final Tree choiceTree = choiceOfValues == null ? null : new Tree(choiceComposite, SWT.MULTI | SWT.BORDER); if (choiceTree != null) { GridData choiceTtreeGridData = new GridData(); choiceTtreeGridData.widthHint = Display.getCurrent().getBounds().width / 5; choiceTtreeGridData.heightHint = Display.getCurrent().getBounds().height / 3; choiceTtreeGridData.verticalAlignment = SWT.FILL; choiceTtreeGridData.horizontalAlignment = SWT.FILL; choiceTtreeGridData.grabExcessHorizontalSpace = true; choiceTtreeGridData.grabExcessVerticalSpace = true; choiceTree.setLayoutData(choiceTtreeGridData); } final TreeViewer choiceTreeViewer = choiceOfValues == null ? null : new TreeViewer(choiceTree); if (choiceTreeViewer != null) { choiceTreeViewer.setContentProvider(contentProvider); choiceTreeViewer.setLabelProvider(labelProvider); final PatternFilter filter = new PatternFilter() { @Override protected boolean isParentMatch(Viewer viewer, Object element) { return viewer instanceof AbstractTreeViewer && super.isParentMatch(viewer, element); } }; choiceTreeViewer.addFilter(filter); assert patternText != null; patternText.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { filter.setPattern(((Text) e.widget).getText()); choiceTreeViewer.refresh(); } }); choiceTreeViewer.setInput(choiceOfValues); choiceTreeViewer.expandToLevel(2); } // We use multi even for a single line because we want to respond to the // enter key. // int style = multiLine ? SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER : SWT.MULTI | SWT.BORDER; final Text choiceText = choiceOfValues == null ? new Text(choiceComposite, style) : null; if (choiceText != null) { GridData choiceTextGridData = new GridData(); choiceTextGridData.widthHint = Display.getCurrent().getBounds().width / 5; choiceTextGridData.verticalAlignment = SWT.BEGINNING; choiceTextGridData.horizontalAlignment = SWT.FILL; choiceTextGridData.grabExcessHorizontalSpace = true; if (multiLine) { choiceTextGridData.verticalAlignment = SWT.FILL; choiceTextGridData.grabExcessVerticalSpace = true; } choiceText.setLayoutData(choiceTextGridData); } Composite controlButtons = new Composite(contents, SWT.NONE); GridData controlButtonsGridData = new GridData(); controlButtonsGridData.verticalAlignment = SWT.FILL; controlButtonsGridData.horizontalAlignment = SWT.FILL; controlButtons.setLayoutData(controlButtonsGridData); GridLayout controlsButtonGridLayout = new GridLayout(); controlButtons.setLayout(controlsButtonGridLayout); new Label(controlButtons, SWT.NONE); final Button addButton = new Button(controlButtons, SWT.PUSH); addButton.setText(EMFEditUIPlugin.INSTANCE.getString("_UI_Add_label")); GridData addButtonGridData = new GridData(); addButtonGridData.verticalAlignment = SWT.FILL; addButtonGridData.horizontalAlignment = SWT.FILL; addButton.setLayoutData(addButtonGridData); final Button removeButton = new Button(controlButtons, SWT.PUSH); removeButton.setText(EMFEditUIPlugin.INSTANCE.getString("_UI_Remove_label")); GridData removeButtonGridData = new GridData(); removeButtonGridData.verticalAlignment = SWT.FILL; removeButtonGridData.horizontalAlignment = SWT.FILL; removeButton.setLayoutData(removeButtonGridData); Label spaceLabel = new Label(controlButtons, SWT.NONE); GridData spaceLabelGridData = new GridData(); spaceLabelGridData.verticalSpan = 2; spaceLabel.setLayoutData(spaceLabelGridData); final Button upButton = new Button(controlButtons, SWT.PUSH); upButton.setText(EMFEditUIPlugin.INSTANCE.getString("_UI_Up_label")); GridData upButtonGridData = new GridData(); upButtonGridData.verticalAlignment = SWT.FILL; upButtonGridData.horizontalAlignment = SWT.FILL; upButton.setLayoutData(upButtonGridData); final Button downButton = new Button(controlButtons, SWT.PUSH); downButton.setText(EMFEditUIPlugin.INSTANCE.getString("_UI_Down_label")); GridData downButtonGridData = new GridData(); downButtonGridData.verticalAlignment = SWT.FILL; downButtonGridData.horizontalAlignment = SWT.FILL; downButton.setLayoutData(downButtonGridData); Composite featureComposite = new Composite(contents, SWT.NONE); { GridData data = new GridData(SWT.FILL, SWT.FILL, true, true); data.horizontalAlignment = SWT.END; featureComposite.setLayoutData(data); GridLayout layout = new GridLayout(); data.horizontalAlignment = SWT.FILL; layout.marginHeight = 0; layout.marginWidth = 0; layout.numColumns = 1; featureComposite.setLayout(layout); } Label featureLabel = new Label(featureComposite, SWT.NONE); featureLabel.setText(EMFEditUIPlugin.INSTANCE.getString("_UI_Feature_label")); GridData featureLabelGridData = new GridData(); featureLabelGridData.horizontalSpan = 2; featureLabelGridData.horizontalAlignment = SWT.FILL; featureLabelGridData.verticalAlignment = SWT.FILL; featureLabel.setLayoutData(featureLabelGridData); final Tree featureTree = new Tree(featureComposite, SWT.MULTI | SWT.BORDER); GridData featureTreeGridData = new GridData(); featureTreeGridData.widthHint = Display.getCurrent().getBounds().width / 5; featureTreeGridData.heightHint = Display.getCurrent().getBounds().height / 3; featureTreeGridData.verticalAlignment = SWT.FILL; featureTreeGridData.horizontalAlignment = SWT.FILL; featureTreeGridData.grabExcessHorizontalSpace = true; featureTreeGridData.grabExcessVerticalSpace = true; featureTree.setLayoutData(featureTreeGridData); final TreeViewer featureTreeViewer = new TreeViewer(featureTree); featureTreeViewer.setContentProvider(contentProvider); featureTreeViewer.setLabelProvider(labelProvider); if (values != null) { featureTreeViewer.setInput(values); if (!values.getChildren().isEmpty()) { featureTreeViewer.setSelection(new StructuredSelection(values.getChildren().get(0))); } } else { featureTreeViewer.setInput(currentValues); if (!currentValues.isEmpty()) { featureTreeViewer.setSelection(new StructuredSelection(currentValues.get(0))); } } featureTreeViewer.expandToLevel(2); if (choiceTreeViewer != null) { choiceTreeViewer.addDoubleClickListener(new IDoubleClickListener() { public void doubleClick(DoubleClickEvent event) { if (addButton.isEnabled()) { addButton.notifyListeners(SWT.Selection, null); } } }); featureTreeViewer.addDoubleClickListener(new IDoubleClickListener() { public void doubleClick(DoubleClickEvent event) { if (removeButton.isEnabled()) { removeButton.notifyListeners(SWT.Selection, null); } } }); } if (choiceText != null) { choiceText.addKeyListener(new KeyAdapter() { @Override public void keyPressed(KeyEvent event) { if (!multiLine && (event.character == '\r' || event.character == '\n')) { try { Object value = EcoreUtil.createFromString((EDataType) eClassifier, choiceText.getText()); if (values != null) { values.getChildren().add(value); } else { currentValues.add(value); } choiceText.setText(""); featureTreeViewer.setSelection(new StructuredSelection(value)); event.doit = false; } catch (RuntimeException exception) { // Ignore } } else if (event.character == '\33') { choiceText.setText(""); event.doit = false; } } }); } upButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent event) { IStructuredSelection selection = (IStructuredSelection) featureTreeViewer.getSelection(); int minIndex = 0; for (Iterator<?> i = selection.iterator(); i.hasNext();) { Object value = i.next(); if (values != null) { int index = values.getChildren().indexOf(value); values.getChildren().move(Math.max(index - 1, minIndex++), value); } else { int index = currentValues.indexOf(value); currentValues.remove(value); currentValues.add(Math.max(index - 1, minIndex++), value); } } featureTreeViewer.refresh(); featureTreeViewer.expandToLevel(2); featureTreeViewer.setSelection(selection); } }); downButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent event) { IStructuredSelection selection = (IStructuredSelection) featureTreeViewer.getSelection(); int maxIndex = 0; if (values != null) { maxIndex = values.getChildren().size(); } else { maxIndex = currentValues.size(); } maxIndex = maxIndex - selection.size(); for (Iterator<?> i = selection.iterator(); i.hasNext();) { Object value = i.next(); if (values != null) { int index = values.getChildren().indexOf(value); values.getChildren().move(Math.min(index + 1, maxIndex++), value); } else { int index = currentValues.indexOf(value); currentValues.remove(value); currentValues.add(Math.min(index + 1, maxIndex++), value); } } featureTreeViewer.refresh(); featureTreeViewer.expandToLevel(2); featureTreeViewer.setSelection(selection); } }); addButton.addSelectionListener(new SelectionAdapter() { // event is null when choiceTableViewer is double clicked @Override public void widgetSelected(SelectionEvent event) { if (choiceTreeViewer != null) { IStructuredSelection selection = (IStructuredSelection) choiceTreeViewer.getSelection(); for (Iterator<?> i = selection.iterator(); i.hasNext();) { Object value = i.next(); if (!eClassifier.isInstance(value)) { continue; } if (values != null) { if (!values.getChildren().contains(value)) { values.getChildren().add(value); } } else { if (!currentValues.contains(value)) { currentValues.add(value); } } } featureTreeViewer.refresh(); featureTreeViewer.expandToLevel(2); featureTreeViewer.setSelection(selection); } else if (choiceText != null) { try { Object value = EcoreUtil.createFromString((EDataType) eClassifier, choiceText.getText()); if (values != null) { values.getChildren().add(value); } else { currentValues.add(value); } choiceText.setText(""); featureTreeViewer.refresh(value); featureTreeViewer.setSelection(new StructuredSelection(value)); } catch (RuntimeException exception) { // Ignore } } } }); removeButton.addSelectionListener(new SelectionAdapter() { // event is null when featureTableViewer is double clicked @Override public void widgetSelected(SelectionEvent event) { IStructuredSelection selection = (IStructuredSelection) featureTreeViewer.getSelection(); Object firstValue = null; for (Iterator<?> i = selection.iterator(); i.hasNext();) { Object value = i.next(); if (!eClassifier.isInstance(value)) { continue; } if (firstValue == null) { firstValue = value; } if (values != null) { values.getChildren().remove(value); } else { currentValues.remove(value); } } if (values != null) { if (!values.getChildren().isEmpty()) { featureTreeViewer.setSelection(new StructuredSelection(values.getChildren().get(0))); } } else { if (!currentValues.isEmpty()) { featureTreeViewer.setSelection(new StructuredSelection(currentValues.get(0))); } } if (choiceTreeViewer != null) { choiceTreeViewer.refresh(); choiceTreeViewer.expandToLevel(2); featureTreeViewer.refresh(); featureTreeViewer.expandToLevel(2); choiceTreeViewer.setSelection(selection); } else if (choiceText != null) { if (firstValue != null) { String value = EcoreUtil.convertToString((EDataType) eClassifier, firstValue); choiceText.setText(value); } } } }); return contents; }
From source file:es.cv.gvcase.fefem.common.composites.EMFContainedHierarchicalCollectionEditionComposite.java
License:Open Source License
/** * Creates the a SelectionListener which will invoke the code to remove/delete * a selected element from the tree viewer. * /*from ww w . j a v a2 s. com*/ * @return SelectionListener the {@link SelectionListener} which will * remove/delete a selected element from the viewer. */ protected SelectionListener getRemoveButtonSelectionListener() { SelectionAdapter adapter = new SelectionAdapter() { public void widgetSelected(SelectionEvent event) { TreeViewer viewer = getViewer(); if (viewer.getSelection() instanceof TreeSelection) { TreeSelection selection = (TreeSelection) viewer.getSelection(); List<?> elementsToDelete = selection.toList(); if (elementsToDelete.size() > 0) { // We prepare the next selection, based on the element to delete EObject eObject = (EObject) elementsToDelete.get(0); TreePath path = selection.getPathsFor(eObject)[0]; TreeSelection nextSelection = TreeSelection.EMPTY; ; if (path.getSegmentCount() == 1) { // If it is a first level element, we will select a sibling element if (modelObservable.size() > 1) { // If we have more than one element int pos = modelObservable.indexOf(eObject); nextSelection = (pos == modelObservable.size() - 1) // If it's the last first level element, we will select the previous sibling ? new TreeSelection( new TreePath(new Object[] { modelObservable.get(pos - 1) })) : new TreeSelection( new TreePath(new Object[] { modelObservable.get(pos + 1) })); // otherwise, we will select the next one } } else { // If it is not a first level element, we will select its parent element nextSelection = new TreeSelection(path.getParentPath()); } EditingDomain domain = getEditingDomain(); domain.getCommandStack().execute(DeleteCommand.create(domain, elementsToDelete)); getPage().setDirty(true); viewer.setSelection(nextSelection); } } } }; return adapter; }