/**
* expands one level at a time when step node is clicked
*
* @param item
*/
public void expandOneLevel(VisualItem item) {
Visualization vis = item.getVisualization();
TableNodeItem stepItem = (TableNodeItem) item;
TableNodeItem stepParent = getStepParent(stepItem);
TableNodeItem stepChild = getStepChild(stepItem);
int finishNodeId = 0;
Iterator visualItems = vis.visibleItems();
VisualItem node;
while (visualItems.hasNext()) {
node = (VisualItem) visualItems.next();
if (node instanceof TableNodeItem
&& node.getInt(ID) > (stepParent.getInt(ID) + 1)
&& node.getInt(ID) < stepChild.getInt(ID)
&& node.getString(TYPE).equals(START)
&& node.getInt(ID) > finishNodeId) {
collapseExpand(node);
finishNodeId = finishNode((TableNodeItem) node).getInt(ID);
}
}
}
