Java tutorial
/******************************************************************************* * Copyright (c) 2004, 2010 BREDEX GmbH. * 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: * BREDEX GmbH - initial API and implementation and/or initial documentation *******************************************************************************/ package org.eclipse.jubula.client.ui.rcp.widgets; import java.util.Collection; import org.eclipse.core.databinding.observable.list.WritableList; import org.eclipse.core.databinding.validation.IValidator; import org.eclipse.jface.databinding.viewers.ObservableListContentProvider; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.viewers.ListViewer; import org.eclipse.jface.viewers.ViewerComparator; import org.eclipse.jface.window.Window; import org.eclipse.jubula.client.core.model.IAUTMainPO; import org.eclipse.jubula.client.ui.rcp.dialogs.EnterAutIdDialog; import org.eclipse.jubula.client.ui.rcp.i18n.Messages; import org.eclipse.jubula.client.ui.rcp.provider.ControlDecorator; import org.eclipse.jubula.client.ui.utils.DialogUtils; import org.eclipse.jubula.client.ui.utils.LayoutUtil; import org.eclipse.jubula.tools.internal.i18n.I18n; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; 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.Label; import org.eclipse.swt.widgets.List; /** * @author BREDEX GmbH * @created Jan 21, 2010 */ public class AutIdListComposite extends Composite { /** the AUT containing the AUT ID list to be viewed / modified */ private IAUTMainPO m_aut; /** * Constructor * * @param parent The parent composite for this component. * @param aut The AUT containing the AUT ID list to be viewed / modified * @param autIdValidator The validator for the AUT ID text field. */ public AutIdListComposite(Composite parent, IAUTMainPO aut, IValidator autIdValidator) { super(parent, SWT.NONE); m_aut = aut; init(autIdValidator); } /** * Creates the necessary components and sets their initial values. * * @param autIdValidator The validator for the AUT ID text field. */ @SuppressWarnings("unchecked") private void init(final IValidator autIdValidator) { GridLayout compositeLayout = new GridLayout(); compositeLayout.numColumns = 2; compositeLayout.marginHeight = 0; compositeLayout.marginWidth = 0; setLayout(compositeLayout); Label idLabel = new Label(this, SWT.NONE); idLabel.setText(Messages.AUTPropertiesDialogAutId); ControlDecorator.createInfo(idLabel, I18n.getString("AUTPropertiesDialog.AutId.helpText"), false); //$NON-NLS-1$ GridData data = new GridData(SWT.BEGINNING, SWT.FILL, false, false); data.horizontalSpan = 1; idLabel.setLayoutData(data); // Created to keep layout consistent new Label(this, SWT.NONE).setVisible(false); final WritableList idListModel = new WritableList(m_aut.getAutIds(), String.class); final ListViewer idListViewer = new ListViewer(this, LayoutUtil.MULTI_TEXT_STYLE); idListViewer.setContentProvider(new ObservableListContentProvider()); idListViewer.setComparator(new ViewerComparator()); idListViewer.setInput(idListModel); final List idList = idListViewer.getList(); data = new GridData(SWT.FILL, SWT.FILL, true, false); data.verticalSpan = 3; data.widthHint = Dialog.convertHeightInCharsToPixels(LayoutUtil.getFontMetrics(idList), 4); idList.setLayoutData(data); createButtons(this, autIdValidator, idList, idListModel); } /** * * @param parent The parent composite for the buttons. * @param idList The list component containing the AUT IDs. * @param autIdValidator The validator for AUT IDs. * @param idListModel The model containing the AUT IDs. */ private static void createButtons(Composite parent, final IValidator autIdValidator, final List idList, final Collection<String> idListModel) { GridData data; final Button addButton = new Button(parent, SWT.NONE); addButton.setText(Messages.AUTConfigComponentAdd); data = new GridData(SWT.FILL, SWT.BEGINNING, false, false); addButton.setLayoutData(data); addButton.addSelectionListener(new SelectionListener() { public void widgetDefaultSelected(SelectionEvent event) { widgetSelected(event); } public void widgetSelected(SelectionEvent event) { EnterAutIdDialog dialog = new EnterAutIdDialog(addButton.getShell(), null, autIdValidator); if (dialog.open() == Window.OK) { idListModel.add(dialog.getAutId()); } } }); final Button editButton = new Button(parent, SWT.NONE); editButton.setEnabled(false); editButton.setText(Messages.AUTConfigComponentEdit); data = new GridData(SWT.FILL, SWT.BEGINNING, false, false); editButton.setLayoutData(data); editButton.addSelectionListener(new SelectionListener() { public void widgetDefaultSelected(SelectionEvent event) { widgetSelected(event); } @SuppressWarnings("synthetic-access") public void widgetSelected(SelectionEvent event) { handleEditAutIdDialog(idList, autIdValidator, idListModel); } }); final Button removeButton = new Button(parent, SWT.NONE); removeButton.setEnabled(false); removeButton.setText(Messages.AUTConfigComponentRemove); data = new GridData(SWT.FILL, SWT.BEGINNING, false, false); removeButton.setLayoutData(data); removeButton.addSelectionListener(new SelectionListener() { public void widgetDefaultSelected(SelectionEvent event) { widgetSelected(event); } public void widgetSelected(SelectionEvent event) { if (idList.getSelectionCount() != 0) { idListModel.remove(idList.getItem(idList.getSelectionIndex())); if (idList.getItemCount() > 0) { idList.setSelection(0); } else { idList.deselectAll(); removeButton.setEnabled(false); editButton.setEnabled(false); } } } }); idList.addSelectionListener(new SelectionListener() { @SuppressWarnings("synthetic-access") public void widgetDefaultSelected(SelectionEvent event) { handleEditAutIdDialog(idList, autIdValidator, idListModel); } public void widgetSelected(SelectionEvent event) { boolean enableSelectionButtons = idList.getSelectionCount() == 1; editButton.setEnabled(enableSelectionButtons); removeButton.setEnabled(enableSelectionButtons); } }); } /** * * @param idList The list component containing the AUT ID being edited. * @param autIdValidator The validator for the AUT ID. * @param idListModel The model containing the AUT ID being edited. */ private static void handleEditAutIdDialog(List idList, IValidator autIdValidator, Collection<String> idListModel) { if (idList.getSelectionCount() != 0) { String originalId = idList.getItem(idList.getSelectionIndex()); EnterAutIdDialog dialog = new EnterAutIdDialog(idList.getShell(), originalId, autIdValidator); dialog.create(); DialogUtils.setWidgetNameForModalDialog(dialog); if (dialog.open() == Window.OK) { idListModel.remove(originalId); idListModel.add(dialog.getAutId()); } } } }