/*******************************************************************************
* Copyright (c) 2009 STMicroelectronics.
* 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:
* Xavier Raynaud <xavier.raynaud@st.com> - initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.internal.gprof.view;
import java.util.LinkedList;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.linuxtools.internal.gprof.parser.GmonDecoder;
import org.eclipse.linuxtools.internal.gprof.view.histogram.AbstractTreeElement;
import org.eclipse.linuxtools.internal.gprof.view.histogram.HistRoot;
import org.eclipse.linuxtools.internal.gprof.view.histogram.TreeElement;
/**
* Tree content provider on charge of displaying call graph
*
* @author Xavier Raynaud <xavier.raynaud@st.com>
*/
public class FileHistogramContentProvider implements ITreeContentProvider {
public static final FileHistogramContentProvider sharedInstance = new FileHistogramContentProvider();
/**
* Constructor
*/
FileHistogramContentProvider() {
}
@Override
public Object[] getChildren(Object parentElement) {
if (parentElement instanceof AbstractTreeElement) {
AbstractTreeElement elem = (AbstractTreeElement) parentElement;
LinkedList<? extends TreeElement> list = elem.getChildren();
return list.toArray();
}
return null;
}
@Override
public Object getParent(Object element) {
if (element instanceof AbstractTreeElement) {
AbstractTreeElement elem = (AbstractTreeElement) element;
return elem.getParent();
}
return null;
}
@Override
public boolean hasChildren(Object element) {
if (element instanceof AbstractTreeElement) {
AbstractTreeElement elem = (AbstractTreeElement) element;
return elem.hasChildren() && !elem.getChildren().isEmpty();
}
return false;
}
@Override
public Object[] getElements(Object inputElement) {
if (inputElement instanceof GmonDecoder) {
GmonDecoder obj = (GmonDecoder) inputElement;
HistRoot root = obj.getRootNode();
return new Object[] {
root
};
}
return new Object[0];
}
@Override
public void dispose() {
}
@Override
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
}
}