| /******************************************************************************* |
| * Copyright (c) 2006 Tom Schindl and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Tom Schindl - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jface.snippets.viewers; |
| |
| import java.util.ArrayList; |
| |
| import org.eclipse.jface.viewers.CellEditor; |
| import org.eclipse.jface.viewers.ColumnViewerEditor; |
| import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy; |
| import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent; |
| import org.eclipse.jface.viewers.FocusCellOwnerDrawHighlighter; |
| import org.eclipse.jface.viewers.ICellModifier; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.TextCellEditor; |
| import org.eclipse.jface.viewers.TreePath; |
| import org.eclipse.jface.viewers.TreeViewerFocusCellManager; |
| import org.eclipse.jface.viewers.TreeViewerEditor; |
| import org.eclipse.jface.viewers.TreeViewer; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.events.SelectionListener; |
| import org.eclipse.swt.layout.FillLayout; |
| import org.eclipse.swt.widgets.Button; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Item; |
| import org.eclipse.swt.widgets.Shell; |
| |
| /** |
| * Demonstrates how to use keyboard-editing support in a TreeViewer with no column |
| * |
| * @author Tom Schindl <tom.schindl@bestsolution.at> |
| * |
| */ |
| public class Snippet043NoColumnTreeViewerKeyboardEditing { |
| public Snippet043NoColumnTreeViewerKeyboardEditing(final Shell shell) { |
| Button b = new Button(shell, SWT.PUSH); |
| b.setText("BBB"); |
| final TreeViewer v = new TreeViewer(shell, SWT.BORDER |
| | SWT.FULL_SELECTION); |
| b.addSelectionListener(new SelectionListener() { |
| |
| public void widgetDefaultSelected(SelectionEvent e) { |
| |
| } |
| |
| public void widgetSelected(SelectionEvent e) { |
| MyModel root = (MyModel) v.getInput(); |
| TreePath path = new TreePath(new Object[] { root, |
| root.child.get(1), |
| ((MyModel) root.child.get(1)).child.get(0) }); |
| v.editElement(path, 0); |
| } |
| |
| }); |
| |
| v.setCellEditors(new CellEditor[] { new TextCellEditor(v.getTree()) }); |
| v.setColumnProperties(new String[] { "col1" }); |
| v.setCellModifier(new ICellModifier() { |
| |
| public boolean canModify(Object element, String property) { |
| return true; |
| } |
| |
| public Object getValue(Object element, String property) { |
| return ((MyModel) element).counter + ""; |
| } |
| |
| public void modify(Object element, String property, Object value) { |
| element = ((Item) element).getData(); |
| ((MyModel) element).counter = Integer |
| .parseInt(value.toString()); |
| v.update(element, null); |
| } |
| |
| }); |
| |
| TreeViewerFocusCellManager focusCellManager = new TreeViewerFocusCellManager( |
| v, new FocusCellOwnerDrawHighlighter(v)); |
| ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy( |
| v) { |
| protected boolean isEditorActivationEvent( |
| ColumnViewerEditorActivationEvent event) { |
| return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL |
| || event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION |
| || (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == SWT.CR) |
| || event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC; |
| } |
| }; |
| |
| TreeViewerEditor.create(v, focusCellManager, actSupport, |
| ColumnViewerEditor.TABBING_HORIZONTAL |
| | ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR |
| | ColumnViewerEditor.TABBING_VERTICAL |
| | ColumnViewerEditor.KEYBOARD_ACTIVATION); |
| |
| v.setContentProvider(new MyContentProvider()); |
| |
| v.setInput(createModel()); |
| } |
| |
| private MyModel createModel() { |
| |
| MyModel root = new MyModel(0, null); |
| root.counter = 0; |
| |
| MyModel tmp; |
| MyModel subItem; |
| for (int i = 1; i < 10; i++) { |
| tmp = new MyModel(i, root); |
| root.child.add(tmp); |
| for (int j = 1; j < i; j++) { |
| subItem = new MyModel(j, tmp); |
| subItem.child.add(new MyModel(j * 100, subItem)); |
| tmp.child.add(subItem); |
| } |
| } |
| |
| return root; |
| } |
| |
| public static void main(String[] args) { |
| Display display = new Display(); |
| Shell shell = new Shell(display); |
| shell.setLayout(new FillLayout()); |
| new Snippet043NoColumnTreeViewerKeyboardEditing(shell); |
| shell.open(); |
| |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| } |
| |
| display.dispose(); |
| } |
| |
| private class MyContentProvider implements ITreeContentProvider { |
| |
| public Object[] getElements(Object inputElement) { |
| return ((MyModel) inputElement).child.toArray(); |
| } |
| |
| public void dispose() { |
| } |
| |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| } |
| |
| public Object[] getChildren(Object parentElement) { |
| return getElements(parentElement); |
| } |
| |
| public Object getParent(Object element) { |
| if (element == null) { |
| return null; |
| } |
| return ((MyModel) element).parent; |
| } |
| |
| public boolean hasChildren(Object element) { |
| return ((MyModel) element).child.size() > 0; |
| } |
| |
| } |
| |
| public class MyModel { |
| public MyModel parent; |
| |
| public ArrayList child = new ArrayList(); |
| |
| public int counter; |
| |
| public MyModel(int counter, MyModel parent) { |
| this.parent = parent; |
| this.counter = counter; |
| } |
| |
| public String toString() { |
| String rv = "Item "; |
| if (parent != null) { |
| rv = parent.toString() + "."; |
| } |
| |
| rv += counter; |
| |
| return rv; |
| } |
| } |
| |
| } |