@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; }
/** * Mouse Click Event. * * @param e MouseEvent Object. */ public void mouseClicked(MouseEvent e) { int x = e.getX(); int y = e.getY(); int row = tree.getRowForLocation(x, y); TreePath path = tree.getPathForRow(row); if (path != null) { CheckNode node = (CheckNode) path.getLastPathComponent(); boolean isSelected = !(node.isSelected()); node.setSelected(isSelected); if (node.getSelectionMode() == CheckNode.DIG_IN_SELECTION) { if (isSelected) { tree.expandPath(path); } else { tree.collapsePath(path); } } ((DefaultTreeModel) tree.getModel()).nodeChanged(node); if (row == 0) { tree.revalidate(); tree.repaint(); } } }