/**
* Returns the bounds for the given node. If <code>childIndex</code> is -1, the bounds of <code>
* parent</code> are returned, otherwise the bounds of the node at <code>childIndex</code> are
* returned.
*/
private Rectangle getBounds(FHTreeStateNode parent, int childIndex, Rectangle placeIn) {
boolean expanded;
int level;
int row;
Object value;
if (childIndex == -1) {
// Getting bounds for parent
row = parent.getRow();
value = parent.getUserObject();
expanded = parent.isExpanded();
level = parent.getLevel();
} else {
row = parent.getRowToModelIndex(childIndex);
value = treeModel.getChild(parent.getUserObject(), childIndex);
expanded = false;
level = parent.getLevel() + 1;
}
Rectangle bounds = getNodeDimensions(value, row, level, expanded, boundsBuffer);
// No node dimensions, bail.
if (bounds == null) return null;
if (placeIn == null) placeIn = new Rectangle();
placeIn.x = bounds.x;
placeIn.height = getRowHeight();
placeIn.y = row * placeIn.height;
placeIn.width = bounds.width;
return placeIn;
}
/**
* Returns the row that the last item identified in path is visible at. Will return -1 if any of
* the elements in path are not currently visible.
*/
public int getRowForPath(TreePath path) {
if (path == null || root == null) return -1;
FHTreeStateNode node = getNodeForPath(path, true, false);
if (node != null) return node.getRow();
TreePath parentPath = path.getParentPath();
node = getNodeForPath(parentPath, true, false);
if (node != null && node.isExpanded()) {
return node.getRowToModelIndex(
treeModel.getIndexOfChild(
parentPath.getLastPathComponent(), path.getLastPathComponent()));
}
return -1;
}
