/*
* Copyright (c) 2012 Data Harmonisation Panel
*
* All rights reserved. This program and the accompanying materials are made
* available under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the License,
* or (at your option) any later version.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution. If not, see <http://www.gnu.org/licenses/>.
*
* Contributors:
* HUMBOLDT EU Integrated Project #030962
* Data Harmonisation Panel <http://www.dhpanel.eu>
*/
package eu.esdihumboldt.hale.ui.views.tasks;
import org.eclipse.jface.viewers.TreeNode;
import eu.esdihumboldt.hale.ui.util.tree.DefaultTreeNode;
import eu.esdihumboldt.hale.ui.util.tree.MapTreeNode;
import eu.esdihumboldt.hale.ui.util.tree.MultiColumnTreeNodeLabelProvider;
import eu.esdihumboldt.hale.ui.views.tasks.model.ResolvedTask;
/**
* Task description label provider
*
* @author Simon Templer
* @partner 01 / Fraunhofer Institute for Computer Graphics Research
*/
public class TaskCountLabelProvider extends MultiColumnTreeNodeLabelProvider {
private final int index;
/**
* Default constructor
*
* @param index index of the task value
*/
public TaskCountLabelProvider(int index) {
super(index);
this.index = index;
}
/**
* @see MultiColumnTreeNodeLabelProvider#getValueText(Object, TreeNode)
*/
@Override
protected String getValueText(Object value, TreeNode node) {
if (value instanceof ResolvedTask) {
return null;
}
else if (node instanceof MapTreeNode<?, ?>) {
return getNodeText((MapTreeNode<?, ?>) node);
}
else {
return super.getValueText(value, node);
}
}
/**
* Get the image for the given node
*
* @param node the node
*
* @return the image or <code>null</code>
*/
private String getNodeText(MapTreeNode<?, ?> node) {
int count = getTaskCount(node);
return String.valueOf(count);
}
/**
* Get the given node's task count
*
* @param node the node
*
* @return the task count
*/
private int getTaskCount(MapTreeNode<?, ?> node) {
int count = 0;
TreeNode[] children = node.getChildren();
for (TreeNode child : children) {
if (child instanceof DefaultTreeNode) {
// child is task node
DefaultTreeNode childNode = (DefaultTreeNode) child;
Object tmp = childNode.getValue();
// get value
Object value;
if (tmp.getClass().isArray()) {
value = ((Object[]) tmp)[index];
}
else {
value = tmp;
}
// add task to count if it is open
if (value instanceof ResolvedTask && ((ResolvedTask) value).isOpen()) {
count++;
}
}
else if (child instanceof MapTreeNode<?, ?>) {
// child is map node
MapTreeNode<?, ?> childNode = (MapTreeNode<?, ?>) child;
count += getTaskCount(childNode);
}
}
return count;
}
}