| /******************************************************************************* |
| * 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.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.util.ArrayList; |
| |
| import org.eclipse.jface.viewers.CellEditor; |
| import org.eclipse.jface.viewers.CheckboxCellEditor; |
| import org.eclipse.jface.viewers.ColumnLabelProvider; |
| import org.eclipse.jface.viewers.ColumnViewerEditor; |
| import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy; |
| import org.eclipse.jface.viewers.EditingSupport; |
| import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent; |
| import org.eclipse.jface.viewers.FocusCellOwnerDrawHighlighter; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.TextCellEditor; |
| import org.eclipse.jface.viewers.TreeViewerEditor; |
| import org.eclipse.jface.viewers.TreeViewer; |
| import org.eclipse.jface.viewers.TreeViewerColumn; |
| import org.eclipse.jface.viewers.TreeViewerFocusCellManager; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerCell; |
| import org.eclipse.jface.viewers.ViewerRow; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.TraverseEvent; |
| import org.eclipse.swt.events.TraverseListener; |
| import org.eclipse.swt.layout.FillLayout; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Shell; |
| |
| /** |
| * Demonstrate how to work-around 3.3.1 limitation when it comes to TAB-Traversal and |
| * checkbox editors. 3.4 will hopefully provide provide an out-of-the-box fix see bug 198502 |
| * |
| * @author Tom Schindl <tom.schindl@bestsolution.at> |
| * |
| */ |
| public class Snippet048TreeViewerTabWithCheckboxFor3_3 { |
| public Snippet048TreeViewerTabWithCheckboxFor3_3(final Shell shell) { |
| final TreeViewer v = new TreeViewer(shell, SWT.BORDER |
| | SWT.FULL_SELECTION); |
| v.getTree().setLinesVisible(true); |
| v.getTree().setHeaderVisible(true); |
| |
| final TreeViewerFocusCellManager mgr = 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.character == ' ' )) |
| || event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC; |
| } |
| }; |
| |
| TreeViewerEditor.create(v, mgr, actSupport, ColumnViewerEditor.TABBING_HORIZONTAL |
| | ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR |
| | ColumnViewerEditor.TABBING_VERTICAL | ColumnViewerEditor.KEYBOARD_ACTIVATION); |
| |
| final TextCellEditor textCellEditor = new TextCellEditor(v.getTree()); |
| final CheckboxCellEditor checkboxCellEditor = new CheckboxCellEditor(v.getTree()); |
| |
| TreeViewerColumn column = new TreeViewerColumn(v, SWT.NONE); |
| column.getColumn().setWidth(200); |
| column.getColumn().setMoveable(true); |
| column.getColumn().setText("Column 1"); |
| column.setLabelProvider(new ColumnLabelProvider() { |
| |
| public String getText(Object element) { |
| return "Column 1 => " + element.toString(); |
| } |
| |
| }); |
| column.setEditingSupport(new EditingSupport(v) { |
| protected boolean canEdit(Object element) { |
| return false; |
| } |
| |
| protected CellEditor getCellEditor(Object element) { |
| return textCellEditor; |
| } |
| |
| protected Object getValue(Object element) { |
| return ((MyModel) element).counter + ""; |
| } |
| |
| protected void setValue(Object element, Object value) { |
| ((MyModel) element).counter = Integer |
| .parseInt(value.toString()); |
| v.update(element, null); |
| } |
| }); |
| |
| column = new TreeViewerColumn(v, SWT.NONE); |
| column.getColumn().setWidth(200); |
| column.getColumn().setMoveable(true); |
| column.getColumn().setText("Column 2"); |
| column.setLabelProvider(new ColumnLabelProvider() { |
| |
| public String getText(Object element) { |
| return "Column 2 => " + element.toString(); |
| } |
| |
| }); |
| column.setEditingSupport(new EditingSupport(v) { |
| protected boolean canEdit(Object element) { |
| return true; |
| } |
| |
| protected CellEditor getCellEditor(Object element) { |
| return textCellEditor; |
| } |
| |
| protected Object getValue(Object element) { |
| return ((MyModel) element).counter + ""; |
| } |
| |
| protected void setValue(Object element, Object value) { |
| ((MyModel) element).counter = Integer |
| .parseInt(value.toString()); |
| v.update(element, null); |
| } |
| }); |
| |
| column = new TreeViewerColumn(v, SWT.NONE); |
| column.getColumn().setWidth(200); |
| column.getColumn().setMoveable(true); |
| column.getColumn().setText("Column 3"); |
| column.setLabelProvider(new ColumnLabelProvider() { |
| |
| public String getText(Object element) { |
| return ((MyModel)element).bool + ""; |
| } |
| |
| }); |
| column.setEditingSupport(new EditingSupport(v) { |
| protected boolean canEdit(Object element) { |
| return true; |
| } |
| |
| protected CellEditor getCellEditor(Object element) { |
| return checkboxCellEditor; |
| } |
| |
| protected Object getValue(Object element) { |
| return new Boolean(((MyModel) element).bool); |
| } |
| |
| protected void setValue(Object element, Object value) { |
| ((MyModel) element).bool = ((Boolean)value).booleanValue(); |
| v.update(element, null); |
| } |
| }); |
| |
| v.setContentProvider(new MyContentProvider()); |
| v.setInput(createModel()); |
| v.getControl().addTraverseListener(new TraverseListener() { |
| |
| public void keyTraversed(TraverseEvent e) { |
| if( (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) && mgr.getFocusCell().getColumnIndex() == 2 ) { |
| ColumnViewerEditor editor = v.getColumnViewerEditor(); |
| ViewerCell cell = mgr.getFocusCell(); |
| |
| try { |
| Method m = ColumnViewerEditor.class.getDeclaredMethod("processTraverseEvent", new Class[] {int.class,ViewerRow.class,TraverseEvent.class}); |
| m.setAccessible(true); |
| m.invoke(editor, new Object[] { new Integer(cell.getColumnIndex()), cell.getViewerRow(), e }); |
| } catch (SecurityException e1) { |
| // TODO Auto-generated catch block |
| e1.printStackTrace(); |
| } catch (NoSuchMethodException e1) { |
| // TODO Auto-generated catch block |
| e1.printStackTrace(); |
| } catch (IllegalArgumentException e1) { |
| // TODO Auto-generated catch block |
| e1.printStackTrace(); |
| } catch (IllegalAccessException e1) { |
| // TODO Auto-generated catch block |
| e1.printStackTrace(); |
| } catch (InvocationTargetException e1) { |
| // TODO Auto-generated catch block |
| e1.printStackTrace(); |
| } |
| } |
| } |
| |
| }); |
| } |
| |
| 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 Snippet048TreeViewerTabWithCheckboxFor3_3(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 boolean bool; |
| |
| 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; |
| } |
| } |
| |
| } |