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/*******************************************************************************
* Copyright (c) 2015 Ericsson
*
* 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:
* Patrick Tasse - Initial API and implementation
*******************************************************************************/
package org.eclipse.tracecompass.tmf.ui.widgets.timegraph;
import java.util.List;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.ITimeGraphEntry;
/**
* Base provider class for the time graph content provider
* <p>
* The default implementation accepts an ITimeGraphEntry[] or a List of
* ITimeGraphEntry as input element.
*
* @author Patrick Tasse
* @since 1.0
*/
public class TimeGraphContentProvider implements ITimeGraphContentProvider {
@Override
public ITimeGraphEntry[] getElements(Object inputElement) {
if (inputElement instanceof ITimeGraphEntry[]) {
return (ITimeGraphEntry[]) inputElement;
} else if (inputElement instanceof List) {
try {
return ((List<?>) inputElement).toArray(new ITimeGraphEntry[0]);
} catch (ClassCastException e) {
}
}
return new ITimeGraphEntry[0];
}
@Override
public boolean hasChildren(Object element) {
ITimeGraphEntry entry = (ITimeGraphEntry) element;
return entry.hasChildren();
}
@Override
public ITimeGraphEntry[] getChildren(Object parentElement) {
ITimeGraphEntry entry = (ITimeGraphEntry) parentElement;
List<? extends ITimeGraphEntry> children = entry.getChildren();
return children.toArray(new ITimeGraphEntry[children.size()]);
}
@Override
public ITimeGraphEntry getParent(Object element) {
ITimeGraphEntry entry = (ITimeGraphEntry) element;
return entry.getParent();
}
@Override
public void dispose() {
// Do nothing
}
@Override
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
// Do nothing
}
}
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