JCheckBoxList.java 文件源码

public JCheckBoxList() {
  setCellRenderer(new CellRenderer());
  addMouseListener(new MouseAdapter() {
    @Override
    public void mousePressed(MouseEvent e) {
      int index = locationToIndex(e.getPoint());
      if (index != -1) {
        JCheckBox checkbox = getModel().getElementAt(index);

        if (e.getPoint().x < checkbox.getHorizontalTextPosition()) {

          checkbox.setSelected(!checkbox.isSelected());
        }
        repaint();
      }
    }
  });
  setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
}