| /******************************************************************************* |
| * Copyright (c) 2008, 2012 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Benjamin Cabe <benjamin.cabe@anyware-tech.com> - creation of this class |
| * Code 9 Corporation - ongoing enhancements |
| *******************************************************************************/ |
| package org.eclipse.pde.internal.ui.parts; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import org.eclipse.jface.viewers.*; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.custom.CCombo; |
| import org.eclipse.swt.widgets.*; |
| import org.eclipse.ui.forms.widgets.FormToolkit; |
| |
| public class ComboViewerPart { |
| private Control fCombo; |
| private ComboViewer fComboViewer; |
| private List<Object> fObjects; |
| |
| /** |
| * The magic object used to deal with null content |
| */ |
| public static Object NULL_OBJECT = new Object(); |
| |
| public ComboViewerPart() { |
| } |
| |
| public void createControl(Composite parent, FormToolkit toolkit, int style) { |
| if (toolkit.getBorderStyle() == SWT.BORDER) { |
| fCombo = new Combo(parent, style | SWT.BORDER); |
| fComboViewer = new ComboViewer((Combo) fCombo); |
| } else { |
| fCombo = new CCombo(parent, style | SWT.FLAT); |
| fComboViewer = new ComboViewer((CCombo) fCombo); |
| } |
| |
| fObjects = new ArrayList<>(); |
| fComboViewer.setLabelProvider(new LabelProvider()); |
| fComboViewer.setContentProvider(ArrayContentProvider.getInstance()); |
| fComboViewer.setInput(fObjects); |
| } |
| |
| public Control getControl() { |
| return fCombo; |
| } |
| |
| public void setEnabled(boolean enabled) { |
| fCombo.setEnabled(enabled); |
| } |
| |
| public void refresh() { |
| fComboViewer.refresh(); |
| } |
| |
| public void addItem(Object item) { |
| fObjects.add((item == null) ? NULL_OBJECT : item); |
| refresh(); |
| } |
| |
| public void addItem(Object item, int index) { |
| fObjects.add(index, (item == null) ? NULL_OBJECT : item); |
| refresh(); |
| } |
| |
| public Collection<Object> getItems() { |
| return fObjects; |
| } |
| |
| public void setItems(Object[] items) { |
| fObjects.clear(); |
| for (Object item : items) |
| fObjects.add((item == null) ? NULL_OBJECT : item); |
| refresh(); |
| } |
| |
| public void select(Object item) { |
| if (item != null) |
| fComboViewer.setSelection(new StructuredSelection(item)); |
| else |
| fComboViewer.setSelection(null); |
| } |
| |
| public void select(int index) { |
| if (index < fObjects.size()) |
| select(fObjects.get(index)); |
| } |
| |
| public void setLabelProvider(IBaseLabelProvider labelProvider) { |
| fComboViewer.setLabelProvider(labelProvider); |
| } |
| |
| public void setComparator(ViewerComparator comparator) { |
| fComboViewer.setComparator(comparator); |
| } |
| |
| public void addSelectionChangedListener(ISelectionChangedListener listener) { |
| fComboViewer.addSelectionChangedListener(listener); |
| } |
| |
| public Object getSelection() { |
| return fComboViewer.getStructuredSelection().getFirstElement(); |
| } |
| } |