JTable Right Align Header
Here's an alternate approach to modifying the TableCellRenderer
of a table's JTableHeader
. It's not strictly necessary for this usage, but it minimizes the impact on the UI delegate's appearance.
Typical usage:
JTable table = new JTable(…);
JTableHeader header = table.getTableHeader();
header.setDefaultRenderer(new HeaderRenderer(table));
Custom header renderer:
private static class HeaderRenderer implements TableCellRenderer {
DefaultTableCellRenderer renderer;
public HeaderRenderer(JTable table) {
renderer = (DefaultTableCellRenderer)
table.getTableHeader().getDefaultRenderer();
renderer.setHorizontalAlignment(JLabel.CENTER);
}
@Override
public Component getTableCellRendererComponent(
JTable table, Object value, boolean isSelected,
boolean hasFocus, int row, int col) {
return renderer.getTableCellRendererComponent(
table, value, isSelected, hasFocus, row, col);
}
}
Try this:
((DefaultTableCellRenderer)table.getTableHeader().getDefaultRenderer())
.setHorizontalAlignment(JLabel.RIGHT);