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/*******************************************************************************
* Copyright (c) 2008, 2012 IBM Corporation 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:
* 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.*;
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<Object>();
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 (int i = 0; i < items.length; i++)
fObjects.add((items[i] == null) ? NULL_OBJECT : items[i]);
refresh();
}
public void setItems(Collection<?> items) {
fObjects.clear();
Iterator<?> it = items.iterator();
while (it.hasNext()) {
Object o = it.next();
fObjects.add((o == null) ? NULL_OBJECT : o);
}
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 ((IStructuredSelection) fComboViewer.getSelection()).getFirstElement();
}
}
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