public static ActionCallback selectPath(final JTree tree, final TreePath path, boolean center) {
tree.makeVisible(path);
if (center) {
return showRowCentred(tree, tree.getRowForPath(path));
} else {
final int row = tree.getRowForPath(path);
return showAndSelect(
tree, row - ListScrollingUtil.ROW_PADDING, row + ListScrollingUtil.ROW_PADDING, row, -1);
}
}
public static void ensureSelection(JTree tree) {
final TreePath[] paths = tree.getSelectionPaths();
if (paths != null) {
for (TreePath each : paths) {
if (tree.getRowForPath(each) >= 0 && tree.isVisible(each)) {
return;
}
}
}
for (int eachRow = 0; eachRow < tree.getRowCount(); eachRow++) {
TreePath eachPath = tree.getPathForRow(eachRow);
if (eachPath != null && tree.isVisible(eachPath)) {
tree.setSelectionPath(eachPath);
break;
}
}
}
private static int getSelectedRow(final JTree tree) {
return tree.getRowForPath(tree.getSelectionPath());
}