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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* 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:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.ui.skynet.util.filteredTree;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.osee.framework.ui.swt.OSEEFilteredTree;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.TreeItem;
import org.eclipse.ui.dialogs.PatternFilter;
/**
* @author Donald G. Dunne
*/
public class OSEECheckedFilteredTree extends OSEEFilteredTree {
private final Set<Object> checked = new HashSet<Object>();
/**
* @param parent
* @param treeStyle
* @param filter
*/
public OSEECheckedFilteredTree(Composite parent, int treeStyle, PatternFilter filter) {
super(parent, treeStyle, filter);
}
@Override
protected Control createTreeControl(Composite parent, int style) {
Control control = super.createTreeControl(parent, style);
getViewer().addSelectionChangedListener(new ISelectionChangedListener() {
@Override
public void selectionChanged(SelectionChangedEvent event) {
storeResults(treeViewer.getTree().getItems());
}
});
getFilterControl().addModifyListener(new ModifyListener() {
@Override
public void modifyText(ModifyEvent e) {
restoreChecked(treeViewer.getTree().getItems());
}
});
getViewer().getTree().addPaintListener(new PaintListener() {
@Override
public void paintControl(PaintEvent e) {
restoreChecked(treeViewer.getTree().getItems());
}
});
return control;
}
public void setInitalChecked(Collection<? extends Object> checked) {
this.checked.addAll(checked);
restoreChecked(treeViewer.getTree().getItems());
for (Object obj : checked) {
treeViewer.reveal(obj);
}
}
public void clearChecked() {
this.checked.clear();
restoreChecked(treeViewer.getTree().getItems());
}
private void restoreChecked(TreeItem treeItems[]) {
for (TreeItem treeItem : treeItems) {
if (treeItem.getChecked() && !checked.contains(treeItem.getData())) {
// System.out.println("Unchecked " + treeItem.getData());
treeItem.setChecked(false);
} else if (!treeItem.getChecked() && checked.contains(treeItem.getData())) {
// System.out.println("Checked " + treeItem.getData());
treeItem.setChecked(true);
}
restoreChecked(treeItem.getItems());
}
}
public Object[] getResult() {
return getChecked().toArray(new Object[getChecked().size()]);
}
private void storeResults(TreeItem treeItems[]) {
for (TreeItem treeItem : treeItems) {
if (treeItem.getChecked() && !checked.contains(treeItem.getData())) {
// System.out.println("Added " + treeItem.getData());
checked.add(treeItem.getData());
} else if (!treeItem.getChecked() && checked.contains(treeItem.getData())) {
// System.out.println("Removed " + treeItem.getData());
checked.remove(treeItem.getData());
}
storeResults(treeItem.getItems());
}
}
/**
* @return the selected
*/
public Set<Object> getChecked() {
return checked;
}
}
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