/*******************************************************************************
* 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.linuxtools.internal.gprof.view.histogram.HistFile;
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 FunctionHistogramContentProvider extends FileHistogramContentProvider {
public static final FunctionHistogramContentProvider sharedInstance = new FunctionHistogramContentProvider();
/**
* Constructor
*/
FunctionHistogramContentProvider() {
}
@Override
public Object[] getChildren(Object parentElement) {
if (parentElement instanceof HistRoot) {
HistRoot root = (HistRoot) parentElement;
LinkedList<? extends TreeElement> ret = getFunctionChildrenList(root);
return ret.toArray();
}
return super.getChildren(parentElement);
}
@Override
public boolean hasChildren(Object element) {
if (element instanceof HistRoot) {
HistRoot root = (HistRoot) element;
LinkedList<? extends TreeElement> ret = getFunctionChildrenList(root);
return !ret.isEmpty();
}
return super.hasChildren(element);
}
protected LinkedList<? extends TreeElement> getFunctionChildrenList(HistRoot root) {
LinkedList<TreeElement> ret = new LinkedList<>();
LinkedList<? extends TreeElement> list = root.getChildren();
for (TreeElement histTreeElem : list) {
LinkedList<? extends TreeElement> partialList = histTreeElem.getChildren();
ret.addAll(partialList);
}
return ret;
}
@Override
public Object getParent(Object element) {
Object o = super.getParent(element);
if (o instanceof HistFile) {
o = super.getParent(o);
}
return o;
}
}