| /******************************************************************************* |
| * 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 org.eclipse.jface.viewers.CellEditor; |
| import org.eclipse.jface.viewers.ColumnLabelProvider; |
| import org.eclipse.jface.viewers.ColumnViewer; |
| import org.eclipse.jface.viewers.EditingSupport; |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.TableViewer; |
| import org.eclipse.jface.viewers.TableViewerColumn; |
| import org.eclipse.jface.viewers.TextCellEditor; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerComparator; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.layout.FillLayout; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Shell; |
| |
| /** |
| * Example usage of ViewerComparator in tables to allow sorting |
| * |
| * @author Tom Schindl <tom.schindl@bestsolution.at> |
| * |
| */ |
| public class Snippet040TableViewerSorting { |
| |
| 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 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; |
| } |
| |
| } |
| |
| protected abstract class AbstractEditingSupport extends EditingSupport { |
| private TextCellEditor editor; |
| |
| public AbstractEditingSupport(TableViewer viewer) { |
| super(viewer); |
| this.editor = new TextCellEditor(viewer.getTable()); |
| } |
| |
| protected boolean canEdit(Object element) { |
| return true; |
| } |
| |
| protected CellEditor getCellEditor(Object element) { |
| return editor; |
| } |
| |
| protected void setValue(Object element, Object value) { |
| doSetValue(element, value); |
| getViewer().update(element, null); |
| } |
| |
| protected abstract void doSetValue(Object element, Object value); |
| } |
| |
| public Snippet040TableViewerSorting(Shell shell) { |
| TableViewer v = new TableViewer(shell, SWT.BORDER | SWT.FULL_SELECTION); |
| v.setContentProvider(new MyContentProvider()); |
| |
| TableViewerColumn column = new TableViewerColumn(v, SWT.NONE); |
| column.getColumn().setWidth(200); |
| column.getColumn().setText("Givenname"); |
| column.getColumn().setMoveable(true); |
| column.setLabelProvider(new ColumnLabelProvider() { |
| |
| public String getText(Object element) { |
| return ((Person) element).givenname; |
| } |
| }); |
| |
| column.setEditingSupport(new AbstractEditingSupport(v) { |
| |
| protected Object getValue(Object element) { |
| return ((Person) element).givenname; |
| } |
| |
| protected void doSetValue(Object element, Object value) { |
| ((Person) element).givenname = value.toString(); |
| } |
| |
| }); |
| |
| ColumnViewerSorter cSorter = new ColumnViewerSorter(v,column) { |
| |
| protected int doCompare(Viewer viewer, Object e1, Object e2) { |
| Person p1 = (Person) e1; |
| Person p2 = (Person) e2; |
| return p1.givenname.compareToIgnoreCase(p2.givenname); |
| } |
| |
| }; |
| |
| column = new TableViewerColumn(v, SWT.NONE); |
| column.getColumn().setWidth(200); |
| column.getColumn().setText("Surname"); |
| column.getColumn().setMoveable(true); |
| column.setLabelProvider(new ColumnLabelProvider() { |
| |
| public String getText(Object element) { |
| return ((Person) element).surname; |
| } |
| |
| }); |
| |
| column.setEditingSupport(new AbstractEditingSupport(v) { |
| |
| protected Object getValue(Object element) { |
| return ((Person) element).surname; |
| } |
| |
| protected void doSetValue(Object element, Object value) { |
| ((Person) element).surname = value.toString(); |
| } |
| |
| }); |
| |
| new ColumnViewerSorter(v,column) { |
| |
| protected int doCompare(Viewer viewer, Object e1, Object e2) { |
| Person p1 = (Person) e1; |
| Person p2 = (Person) e2; |
| return p1.surname.compareToIgnoreCase(p2.surname); |
| } |
| |
| }; |
| |
| column = new TableViewerColumn(v, SWT.NONE); |
| column.getColumn().setWidth(200); |
| column.getColumn().setText("E-Mail"); |
| column.getColumn().setMoveable(true); |
| column.setLabelProvider(new ColumnLabelProvider() { |
| |
| public String getText(Object element) { |
| return ((Person) element).email; |
| } |
| |
| }); |
| |
| column.setEditingSupport(new AbstractEditingSupport(v) { |
| |
| protected Object getValue(Object element) { |
| return ((Person) element).email; |
| } |
| |
| protected void doSetValue(Object element, Object value) { |
| ((Person) element).email = value.toString(); |
| } |
| |
| }); |
| |
| new ColumnViewerSorter(v,column) { |
| |
| protected int doCompare(Viewer viewer, Object e1, Object e2) { |
| Person p1 = (Person) e1; |
| Person p2 = (Person) e2; |
| return p1.email.compareToIgnoreCase(p2.email); |
| } |
| |
| }; |
| |
| Person[] model = createModel(); |
| v.setInput(model); |
| v.getTable().setLinesVisible(true); |
| v.getTable().setHeaderVisible(true); |
| cSorter.setSorter(cSorter, ColumnViewerSorter.ASC); |
| } |
| |
| private Person[] createModel() { |
| Person[] elements = new Person[4]; |
| elements[0] = new Person("Tom", "Schindl", |
| "tom.schindl@bestsolution.at"); |
| elements[1] = new Person("Boris", "Bokowski", |
| "Boris_Bokowski@ca.ibm.com"); |
| elements[2] = new Person("Tod", "Creasey", "Tod_Creasey@ca.ibm.com"); |
| elements[3] = new Person("Wayne", "Beaton", "wayne@eclipse.org"); |
| |
| return elements; |
| } |
| |
| private static abstract class ColumnViewerSorter extends ViewerComparator { |
| public static final int ASC = 1; |
| |
| public static final int NONE = 0; |
| |
| public static final int DESC = -1; |
| |
| private int direction = 0; |
| |
| private TableViewerColumn column; |
| |
| private ColumnViewer viewer; |
| |
| public ColumnViewerSorter(ColumnViewer viewer, TableViewerColumn column) { |
| this.column = column; |
| this.viewer = viewer; |
| this.column.getColumn().addSelectionListener(new SelectionAdapter() { |
| |
| public void widgetSelected(SelectionEvent e) { |
| if( ColumnViewerSorter.this.viewer.getComparator() != null ) { |
| if( ColumnViewerSorter.this.viewer.getComparator() == ColumnViewerSorter.this ) { |
| int tdirection = ColumnViewerSorter.this.direction; |
| |
| if( tdirection == ASC ) { |
| setSorter(ColumnViewerSorter.this, DESC); |
| } else if( tdirection == DESC ) { |
| setSorter(ColumnViewerSorter.this, NONE); |
| } |
| } else { |
| setSorter(ColumnViewerSorter.this, ASC); |
| } |
| } else { |
| setSorter(ColumnViewerSorter.this, ASC); |
| } |
| } |
| }); |
| } |
| |
| public void setSorter(ColumnViewerSorter sorter, int direction) { |
| if( direction == NONE ) { |
| column.getColumn().getParent().setSortColumn(null); |
| column.getColumn().getParent().setSortDirection(SWT.NONE); |
| viewer.setComparator(null); |
| } else { |
| column.getColumn().getParent().setSortColumn(column.getColumn()); |
| sorter.direction = direction; |
| |
| if( direction == ASC ) { |
| column.getColumn().getParent().setSortDirection(SWT.DOWN); |
| } else { |
| column.getColumn().getParent().setSortDirection(SWT.UP); |
| } |
| |
| if( viewer.getComparator() == sorter ) { |
| viewer.refresh(); |
| } else { |
| viewer.setComparator(sorter); |
| } |
| |
| } |
| } |
| |
| public int compare(Viewer viewer, Object e1, Object e2) { |
| return direction * doCompare(viewer, e1, e2); |
| } |
| |
| protected abstract int doCompare(Viewer viewer, Object e1, Object e2); |
| } |
| |
| /** |
| * @param args |
| */ |
| public static void main(String[] args) { |
| Display display = new Display(); |
| |
| Shell shell = new Shell(display); |
| shell.setLayout(new FillLayout()); |
| new Snippet040TableViewerSorting(shell); |
| shell.open(); |
| |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| } |
| |
| display.dispose(); |
| |
| } |
| |
| } |