ColumnResizer.java

package dr.app.bss;

import java.awt.Component;

import javax.swing.JTable;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;

public class ColumnResizer {

	public static void adjustColumnPreferredWidths(JTable table) {

		TableColumnModel columnModel = table.getColumnModel();

		for (int col = 0; col < table.getColumnCount(); col++) {

			int maxwidth = 0;
			for (int row = 0; row < table.getRowCount(); row++) {

				TableCellRenderer rend = table.getCellRenderer(row, col);
				Object value = table.getValueAt(row, col);
				Component comp = rend.getTableCellRendererComponent(table,
						value, false, false, row, col);
				maxwidth = Math.max(comp.getPreferredSize().width, maxwidth);

			}// END: row loop

			TableColumn column = columnModel.getColumn(col);
			TableCellRenderer headerRenderer = column.getHeaderRenderer();
			if (headerRenderer == null) {
				headerRenderer = table.getTableHeader().getDefaultRenderer();
			}

			Object headerValue = column.getHeaderValue();
			Component headerComp = headerRenderer
					.getTableCellRendererComponent(table, headerValue, false,
							false, 0, col);
			maxwidth = Math.max(maxwidth, headerComp.getPreferredSize().width);
			column.setPreferredWidth(maxwidth);
		}// END: col loop
	}

}// END: class