ProfilerTreeTable.java 文件源码

TreePath getNextPath(TreePath path, boolean down) {
    TreeModel _model = model.treeModel;
    TreeNode node = (TreeNode)path.getLastPathComponent();
    if (down && _model.getChildCount(node) > 0)
        return path.pathByAddingChild(_model.getChild(node, 0));

    TreePath parentPath = path.getParentPath();
    if (!down && parentPath == null)
        return path.pathByAddingChild(_model.getChild(node, 0));

    TreeNode parent = (TreeNode)parentPath.getLastPathComponent();
    int idx = _model.getIndexOfChild(parent, node) + 1;

    if (_model.getChildCount(parent) > idx)
        return parentPath.pathByAddingChild(_model.getChild(parent, idx));

    if (!down && parentPath.getParentPath() == null) {
        return parentPath.pathByAddingChild(_model.getChild(parent, 0));
    } else {
        return getNextPath(parentPath, false);
    }
}