Code-Guru のコードに基づく:
/*
* (swing1.1beta3)
*
* |-----------------------------------------------------|
* | 1st | 2nd | 3rd |
* |-----------------------------------------------------|
* | | | | | | |
*/
//package jp.gr.java_conf.tame.swing.examples;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import jp.gr.java_conf.tame.swing.table.*;
/**
* @version 1.0 11/09/98
*/
public class MultiWidthHeaderExample extends JFrame {
MultiWidthHeaderExample() {
super( "Multi-Width Header Example" );
DefaultTableModel dm = new DefaultTableModel();
dm.setDataVector(new Object[][]{
{"a","b","c","d","e","f"},
{"A","B","C","D","E","F"}},
new Object[]{"1 st","","","","",""});
JTable table = new JTable( dm ) {
protected JTableHeader createDefaultTableHeader() {
return new GroupableTableHeader(columnModel);
}
};
TableColumnModel cm = table.getColumnModel();
ColumnGroup g_2nd = new ColumnGroup("2 nd");
g_2nd.add(cm.getColumn(1));
g_2nd.add(cm.getColumn(2));
ColumnGroup g_3rd = new ColumnGroup("3 rd");
g_3rd.add(cm.getColumn(3));
g_3rd.add(cm.getColumn(4));
g_3rd.add(cm.getColumn(5));
GroupableTableHeader header = (GroupableTableHeader)table.getTableHeader();
header.addColumnGroup(g_2nd);
header.addColumnGroup(g_3rd);
JScrollPane scroll = new JScrollPane( table );
getContentPane().add( scroll );
setSize( 400, 100 );
header.revalidate();
}
public static void main(String[] args) {
MultiWidthHeaderExample frame = new MultiWidthHeaderExample();
frame.addWindowListener( new WindowAdapter() {
public void windowClosing( WindowEvent e ) {
System.exit(0);
}
});
frame.setVisible(true);
}
}
ソース: http://www.codeguru.com/java/articles/125.shtml (2012 年以降は利用できません。現在はWeb アーカイブで参照してください)
その他のリソース: