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import java.awt.BorderLayout;
import java.awt.Color;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JViewport;
import javax.swing.ScrollPaneConstants;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableColumnModel;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
import javax.swing.table.TableModel;
public class MainClass extends JFrame {
public MainClass() {
super("Row Header Test");
setSize(300, 200);
setDefaultCloseOperation(EXIT_ON_CLOSE);
TableModel tm = new AbstractTableModel() {
String data[] = { "", "a", "b", "c", "d", "e" };
String headers[] = { "Row #", "Column 1", "Column 2", "Column 3", "Column 4", "Column 5" };
public int getColumnCount() {
return data.length;
}
public int getRowCount() {
return 1000;
}
public String getColumnName(int col) {
return headers[col];
}
public Object getValueAt(int row, int col) {
return data[col] + row;
}
};
TableColumnModel cm = new DefaultTableColumnModel() {
boolean first = true;
public void addColumn(TableColumn tc) {
if (first) {
first = false;
return;
}
tc.setMinWidth(150);
super.addColumn(tc);
}
};
TableColumnModel rowHeaderModel = new DefaultTableColumnModel() {
boolean first = true;
public void addColumn(TableColumn tc) {
if (first) {
tc.setMaxWidth(tc.getPreferredWidth());
super.addColumn(tc);
first = false;
}
}
};
JTable jt = new JTable(tm, cm);
JTable headerColumn = new JTable(tm, rowHeaderModel);
jt.createDefaultColumnsFromModel();
headerColumn.createDefaultColumnsFromModel();
jt.setSelectionModel(headerColumn.getSelectionModel());
headerColumn.setBackground(Color.lightGray);
headerColumn.setColumnSelectionAllowed(false);
headerColumn.setCellSelectionEnabled(false);
JViewport jv = new JViewport();
jv.setView(headerColumn);
jv.setPreferredSize(headerColumn.getMaximumSize());
jt.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
JScrollPane jsp = new JScrollPane(jt);
jsp.setRowHeader(jv);
jsp.setCorner(ScrollPaneConstants.UPPER_LEFT_CORNER, headerColumn.getTableHeader());
getContentPane().add(jsp, BorderLayout.CENTER);
}
public static void main(String args[]) {
new MainClass().setVisible(true);
}
}
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