| /******************************************************************************* |
| * 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.Field; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| |
| import org.eclipse.jface.action.Action; |
| import org.eclipse.jface.action.IMenuListener; |
| import org.eclipse.jface.action.IMenuManager; |
| import org.eclipse.jface.action.MenuManager; |
| import org.eclipse.jface.viewers.CellEditor; |
| import org.eclipse.jface.viewers.ICellModifier; |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.ITableLabelProvider; |
| import org.eclipse.jface.viewers.LabelProvider; |
| import org.eclipse.jface.viewers.TableViewer; |
| import org.eclipse.jface.viewers.TextCellEditor; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.MouseAdapter; |
| import org.eclipse.swt.events.MouseEvent; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.layout.FillLayout; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Item; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.TableColumn; |
| |
| /** |
| * Example of adding and removing columns in conjunction with JFace-Viewers |
| * |
| * @author Tom Schindl <tom.schindl@bestsolution.at> |
| * @since 3.2 |
| */ |
| public class Snippet018TableViewerAddRemoveColumnsWithEditing { |
| |
| public class Person { |
| public String givenname; |
| |
| public String surname; |
| |
| public String email; |
| |
| public Person(String givenname, String surname, String email) { |
| this.givenname = givenname; |
| this.surname = surname; |
| this.email = email; |
| } |
| |
| public String getValue(String name) { |
| Field field; |
| try { |
| field = getClass().getDeclaredField(name); |
| return (String) field.get(this); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| |
| return "ERROR"; |
| } |
| |
| public void setValue(String name, String value) { |
| Field field; |
| try { |
| field = getClass().getDeclaredField(name); |
| field.set(this, value); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| } |
| |
| private class MyContentProvider implements IStructuredContentProvider { |
| |
| public Object[] getElements(Object inputElement) { |
| return (Person[]) inputElement; |
| } |
| |
| public void dispose() { |
| |
| } |
| |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| |
| } |
| |
| } |
| |
| public class MyLabelProvider extends LabelProvider implements |
| ITableLabelProvider { |
| private TableViewer viewer; |
| |
| public MyLabelProvider(TableViewer viewer) { |
| this.viewer = viewer; |
| } |
| |
| public Image getColumnImage(Object element, int columnIndex) { |
| return null; |
| } |
| |
| public String getColumnText(Object element, int columnIndex) { |
| return ((Person) element) |
| .getValue(viewer.getColumnProperties()[columnIndex] |
| .toString()); |
| } |
| } |
| |
| public class MyCellModifier implements ICellModifier { |
| private TableViewer viewer; |
| |
| public MyCellModifier(TableViewer viewer) { |
| this.viewer = viewer; |
| } |
| |
| public boolean canModify(Object element, String property) { |
| return true; |
| } |
| |
| public Object getValue(Object element, String property) { |
| return ((Person) element).getValue(property); |
| } |
| |
| public void modify(Object element, String property, Object value) { |
| ((Person) ((Item) element).getData()).setValue(property, value |
| .toString()); |
| viewer.update(((Item) element).getData(), null); |
| } |
| |
| } |
| |
| private int activeColumn = -1; |
| |
| public Snippet018TableViewerAddRemoveColumnsWithEditing(Shell shell) { |
| final TableViewer v = new TableViewer(shell, SWT.BORDER |
| | SWT.FULL_SELECTION); |
| v.setLabelProvider(new MyLabelProvider(v)); |
| v.setContentProvider(new MyContentProvider()); |
| v.setCellEditors(new CellEditor[] { new TextCellEditor(v.getTable()), |
| new TextCellEditor(v.getTable()), |
| new TextCellEditor(v.getTable()) }); |
| v.setCellModifier(new MyCellModifier(v)); |
| |
| v.setColumnProperties(new String[] { "givenname", "surname" }); |
| |
| TableColumn column = new TableColumn(v.getTable(), SWT.NONE); |
| column.setWidth(200); |
| column.setText("Givenname"); |
| |
| column = new TableColumn(v.getTable(), SWT.NONE); |
| column.setWidth(200); |
| column.setText("Surname"); |
| |
| Person[] model = createModel(); |
| |
| v.setInput(model); |
| v.getTable().setLinesVisible(true); |
| v.getTable().setHeaderVisible(true); |
| |
| addMenu(v); |
| triggerColumnSelectedColumn(v); |
| } |
| |
| private void triggerColumnSelectedColumn(final TableViewer v) { |
| v.getTable().addMouseListener(new MouseAdapter() { |
| |
| public void mouseDown(MouseEvent e) { |
| int x = 0; |
| for (int i = 0; i < v.getTable().getColumnCount(); i++) { |
| x += v.getTable().getColumn(i).getWidth(); |
| if (e.x <= x) { |
| activeColumn = i; |
| break; |
| } |
| } |
| } |
| |
| }); |
| } |
| |
| private void addMenu(final TableViewer v) { |
| final MenuManager mgr = new MenuManager(); |
| |
| final Action insertEmailBefore = new Action("Insert E-Mail before") { |
| public void run() { |
| addEmailColumn(v, activeColumn); |
| } |
| }; |
| |
| final Action insertEmailAfter = new Action("Insert E-Mail after") { |
| public void run() { |
| addEmailColumn(v, activeColumn + 1); |
| } |
| }; |
| |
| final Action removeEmail = new Action("Remove E-Mail") { |
| public void run() { |
| removeEmailColumn(v); |
| } |
| }; |
| |
| mgr.setRemoveAllWhenShown(true); |
| mgr.addMenuListener(new IMenuListener() { |
| |
| public void menuAboutToShow(IMenuManager manager) { |
| if (v.getTable().getColumnCount() == 2) { |
| manager.add(insertEmailBefore); |
| manager.add(insertEmailAfter); |
| } else { |
| manager.add(removeEmail); |
| } |
| } |
| |
| }); |
| |
| v.getControl().setMenu(mgr.createContextMenu(v.getControl())); |
| } |
| |
| private void removeEmailColumn(TableViewer v) { |
| int emailIndex = -1; |
| for (int i = 0; i < v.getColumnProperties().length; i++) { |
| if (v.getColumnProperties()[i].toString().equals("email")) { |
| emailIndex = i; |
| break; |
| } |
| } |
| |
| ArrayList list = new ArrayList(Arrays.asList(v.getCellEditors())); |
| list.remove(emailIndex); |
| CellEditor[] editors = new CellEditor[list.size()]; |
| list.toArray(editors); |
| v.setCellEditors(editors); |
| |
| list = new ArrayList(Arrays.asList(v.getColumnProperties())); |
| list.remove(emailIndex); |
| String[] columnProperties = new String[list.size()]; |
| list.toArray(columnProperties); |
| v.setColumnProperties(columnProperties); |
| |
| v.getTable().getColumn(emailIndex).dispose(); |
| |
| v.refresh(); |
| } |
| |
| private void addEmailColumn(TableViewer v, int columnIndex) { |
| ArrayList list = new ArrayList(Arrays.asList(v.getCellEditors())); |
| list.add(columnIndex, new TextCellEditor(v.getTable())); |
| CellEditor[] editors = new CellEditor[list.size()]; |
| list.toArray(editors); |
| v.setCellEditors(editors); |
| |
| list = new ArrayList(Arrays.asList(v.getColumnProperties())); |
| list.add(columnIndex, "email"); |
| String[] columnProperties = new String[list.size()]; |
| list.toArray(columnProperties); |
| v.setColumnProperties(columnProperties); |
| |
| // 1. Add new column |
| TableColumn column = new TableColumn(v.getTable(), SWT.NONE, |
| columnIndex); |
| column.setText("E-Mail"); |
| |
| // 2. Update the viewer |
| v.refresh(); |
| |
| // 3. Make the colum visible |
| column.setWidth(200); |
| } |
| |
| private Person[] createModel() { |
| Person[] persons = new Person[3]; |
| persons[0] = new Person("Tom", "Schindl", "tom.schindl@bestsolution.at"); |
| persons[1] = new Person("Boris", "Bokowski", |
| "boris_bokowski@ca.ibm.com"); |
| persons[2] = new Person("Tod", "Creasey", "tod_creasey@ca.ibm.com"); |
| |
| return persons; |
| } |
| |
| /** |
| * @param args |
| */ |
| public static void main(String[] args) { |
| Display display = new Display(); |
| |
| Shell shell = new Shell(display); |
| shell.setLayout(new FillLayout()); |
| new Snippet018TableViewerAddRemoveColumnsWithEditing(shell); |
| shell.open(); |
| |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| } |
| |
| display.dispose(); |
| |
| } |
| |
| } |