Java tutorial
/** * Warlock, the open-source cross-platform game client * * Copyright 2008, Warlock LLC, and individual contributors as indicated * by the @authors tag. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package cc.warlock.rcp.application; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import org.eclipse.equinox.p2.metadata.IInstallableUnit; import org.eclipse.equinox.p2.operations.Update; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.ILabelProviderListener; import org.eclipse.jface.viewers.ITableLabelProvider; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.TableColumn; import org.eclipse.swt.widgets.TableItem; import cc.warlock.rcp.ui.WarlockSharedImages; public class WarlockUpdateDialog extends Dialog { private TableViewer updateTable; private HashMap<Update, Boolean> updates = new HashMap<Update, Boolean>(); public WarlockUpdateDialog(Shell parent, List<Update> updates) { super(parent); for (Update update : updates) { this.updates.put(update, true); } } @Override protected void configureShell(Shell newShell) { super.configureShell(newShell); newShell.setText("Warlock Updates"); newShell.setImage(WarlockSharedImages.getImage(WarlockSharedImages.IMG_UPDATES)); newShell.setSize(400, 450); newShell.setActive(); } @Override protected Control createDialogArea(Composite parent) { Composite main = (Composite) super.createDialogArea(parent); Label heading = new Label(main, SWT.NONE); heading.setFont(JFaceResources.getBannerFont()); heading.setText("Warlock Automatic Updates"); Label description = new Label(main, SWT.WRAP); description.setText( "Warlock has found new updates to download.\n\nSelect the updates below that you would like to install, or press Cancel to ignore this update."); description.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true)); updateTable = new TableViewer(main, SWT.CHECK | SWT.BORDER); TableColumn check = new TableColumn(updateTable.getTable(), SWT.NONE, 0); check.setText(" "); check.setWidth(20); TableColumn name = new TableColumn(updateTable.getTable(), SWT.NONE, 1); name.setText("Warlock Feature"); name.setWidth(150); TableColumn currentVersion = new TableColumn(updateTable.getTable(), SWT.NONE, 2); currentVersion.setText("Current Version"); currentVersion.setWidth(100); TableColumn newVersion = new TableColumn(updateTable.getTable(), SWT.NONE, 3); newVersion.setText("New Version"); newVersion.setWidth(100); updateTable.getTable().setHeaderVisible(true); updateTable.setContentProvider(ArrayContentProvider.getInstance()); updateTable.setLabelProvider(new ITableLabelProvider() { @Override public Image getColumnImage(Object element, int columnIndex) { if (columnIndex == 1) return WarlockSharedImages.getImage(WarlockSharedImages.IMG_FEATURE); return null; } @Override public String getColumnText(Object element, int columnIndex) { Update update = (Update) element; if (columnIndex == 1) { //name return update.replacement.getProperty(IInstallableUnit.PROP_NAME); } else if (columnIndex == 2) { //old version return update.toUpdate.getVersion().toString(); } else if (columnIndex == 3) { //new version update.replacement.getVersion().toString(); } return ""; } @Override public void addListener(ILabelProviderListener listener) { } @Override public void dispose() { } @Override public boolean isLabelProperty(Object element, String property) { return true; } @Override public void removeListener(ILabelProviderListener listener) { } }); updateTable.getTable().addListener(SWT.Selection, new Listener() { public void handleEvent(Event event) { if (event.detail == SWT.CHECK) { TableItem item = (TableItem) event.item; Update update = (Update) item.getData(); updates.put(update, !updates.get(update)); System.out.println(update + "=" + updates.get(update)); } } }); updateTable.setInput(updates.keySet()); updateTable.getTable().setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true)); for (TableItem item : updateTable.getTable().getItems()) { item.setChecked(true); } Composite buttonsComposite = new Composite(main, SWT.NONE); buttonsComposite.setLayoutData(new GridData(GridData.END, GridData.FILL, true, true)); buttonsComposite.setLayout(new GridLayout(2, false)); Button selectAll = new Button(buttonsComposite, SWT.PUSH); selectAll.setText("Select All"); selectAll.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { for (TableItem item : updateTable.getTable().getItems()) { item.setChecked(true); } } }); return main; } public List<Update> getSelectedFeatures() { ArrayList<Update> selected = new ArrayList<Update>(); for (Update update : updates.keySet()) { if (updates.get(update)) { selected.add(update); } } return selected; } }