Google Tag Manager

2011/12/22

aterai

Dropdown menu button in the JTableHeader

Code

@Override public void mouseClicked(MouseEvent e) {
  JTableHeader header = (JTableHeader)e.getSource();
  JTable table = header.getTable();
  TableColumnModel columnModel = table.getColumnModel();
  int vci = columnModel.getColumnIndexAtX(e.getX());
  int mci = table.convertColumnIndexToModel(vci);
  TableColumn column = table.getColumnModel().getColumn(mci);
  Rectangle r = header.getHeaderRect(vci);
  Container c = (Container)getTableCellRendererComponent(table, "", true, true, -1, vci);
  r.translate(r.width-BUTTON_WIDTH, 0);
  r.setSize(BUTTON_WIDTH, r.height);
  Point pt = e.getPoint();
  if(c.getComponentCount() > 0 && r.contains(pt) && pop!=null) {
    pop.show(header, r.x, r.height);
    JButton b = (JButton)c.getComponent(0);
    b.doClick();
    e.consume();
  }
}
@Override public void mouseExited(MouseEvent e) {
  rolloverIndex = -1;
}
@Override public void mouseMoved(MouseEvent e) {
  JTableHeader header = (JTableHeader)e.getSource();
  JTable table = header.getTable();
  TableColumnModel columnModel = table.getColumnModel();
  int vci = columnModel.getColumnIndexAtX(e.getX());
  int mci = table.convertColumnIndexToModel(vci);
  rolloverIndex = mci;
}

References