@Nullable
public static Object getTagAtForRenderer(
CheckboxTree.CheckboxTreeCellRenderer renderer, MouseEvent e) {
JTree tree = (JTree) e.getSource();
Object tag = null;
final TreePath path = tree.getPathForLocation(e.getX(), e.getY());
if (path != null) {
final Rectangle rectangle = tree.getPathBounds(path);
assert rectangle != null;
int dx = e.getX() - rectangle.x;
final TreeNode treeNode = (TreeNode) path.getLastPathComponent();
final int row = tree.getRowForLocation(e.getX(), e.getY());
tree.getCellRenderer()
.getTreeCellRendererComponent(tree, treeNode, false, false, true, row, true);
if (treeNode instanceof RepositoryNode) {
RepositoryNode repositoryNode = (RepositoryNode) treeNode;
int checkBoxWidth =
repositoryNode.isCheckboxVisible() ? renderer.getCheckbox().getWidth() : 0;
tag = renderer.getTextRenderer().getFragmentTagAt(dx - checkBoxWidth);
} else {
tag = renderer.getTextRenderer().getFragmentTagAt(dx);
}
}
return tag;
}
