java - Alignment date parts in JTable column formatted in propotional font

Question

I need to make the date parts (dd, MMMM, yyyy) to be vertically aligned. I asked a question at Fixed length of month and day in date format? to insert padding letters, but I found that it doesn't help in case of proportional font (the width of the letters are different). For example, with Lucida Fax font:

Making different labels for different date parts is considering but it's too manual. It's hard to make the text wrapped if the column width is small....
Thanks

Answer 1

note as for all Renderers (excluding preparedRenderer)you have to/be sure that you have to call that after any column/row changes in JTable

TableColumnModel m = myTable.getColumnModel();
m.getColumn(5).setCellRenderer(new SubstDateRenderer());

here you can set BackGround, ForeGround for TableCell

import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.table.DefaultTableCellRenderer;

public class SubstDateRenderer extends DefaultTableCellRenderer {

    private static final long serialVersionUID = 1L;
    private Date dateValue;
    private SimpleDateFormat sdfNewValue = new SimpleDateFormat("dd.MMMM.yyyy");
    private String sdfNewValueString = "";

    public SubstDateRenderer() {// formating TableCell
        super();
        setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
    }

    @Override
    public void setValue(Object value) {
        if ((value != null) && (value instanceof Date)) {
            dateValue = (Date) value;
            sdfNewValueString = sdfNewValue.format(dateValue);
            value = sdfNewValueString;
        }
        super.setValue(value);
    }
}