Mega Code Archive
JTable selection events
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import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.border.Border;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
import javax.swing.table.TableModel;
public class TableIt {
class MyTableCellRenderer extends JLabel implements TableCellRenderer {
final Border blueBorder = BorderFactory.createLineBorder(Color.BLUE);
MyTableCellRenderer() {
setOpaque(true);
}
public Component getTableCellRendererComponent(JTable table,
Object value, boolean isSelected, boolean hasFocus, int row,
int col) {
setBackground((Color) value);
if (isSelected) {
setBorder(blueBorder);
} else {
setBorder(BorderFactory.createEmptyBorder());
}
return this;
}
}
class MyTableModel extends DefaultTableModel {
Object data[][] = { { "1", Color.RED }, { "2", Color.ORANGE },
{ "3", Color.YELLOW }, { "4", Color.GREEN },
{ "5", Color.BLUE }, { "6", Color.MAGENTA },
{ "7", Color.CYAN }, { "8", Color.PINK },
{ "9", Color.BLACK }, { "10", Color.GRAY } };
MyTableModel() {
setColumnIdentifiers(new String[] { "ID", "Name", "Color" });
for (int i = 0, n = data.length; i < n; i++)
addRow(new Object[] { new Integer(i + 1), data[i][0],
data[i][1] });
}
public boolean isCellEditable(int row, int column) {
return (column != 0);
}
}
public TableIt() {
JFrame f = new JFrame();
TableModel tm = new MyTableModel();
final JTable table = new JTable(tm);
TableColumnModel tcm = table.getColumnModel();
TableColumn column = tcm.getColumn(tcm.getColumnCount() - 1);
TableCellRenderer renderer = new MyTableCellRenderer();
column.setCellRenderer(renderer);
JButton selectionType = new JButton("Next Type");
selectionType.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
boolean rowSet = table.getRowSelectionAllowed();
boolean colSet = table.getColumnSelectionAllowed();
boolean cellSet = table.getCellSelectionEnabled();
boolean setRow = !rowSet;
boolean setCol = rowSet ^ colSet;
boolean setCell = rowSet & colSet;
table.setCellSelectionEnabled(setCell);
table.setColumnSelectionAllowed(setCol);
table.setRowSelectionAllowed(setRow);
System.out.println("Row Selection Allowed? " + setRow);
System.out.println("Column Selection Allowed? " + setCol);
System.out.println("Cell Selection Enabled? " + setCell);
table.repaint();
}
});
JButton selectionMode = new JButton("Next Mode");
selectionMode.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
ListSelectionModel lsm = table.getSelectionModel();
int mode = lsm.getSelectionMode();
int nextMode;
String nextModeString;
if (mode == ListSelectionModel.SINGLE_SELECTION) {
nextMode = ListSelectionModel.SINGLE_INTERVAL_SELECTION;
nextModeString = "Single Interval Selection";
} else if (mode == ListSelectionModel.SINGLE_INTERVAL_SELECTION) {
nextMode = ListSelectionModel.MULTIPLE_INTERVAL_SELECTION;
nextModeString = "Multiple Interval Selection";
} else {
nextMode = ListSelectionModel.SINGLE_SELECTION;
nextModeString = "Single Selection";
}
lsm.setSelectionMode(nextMode);
System.out.println("Selection Mode: " + nextModeString);
table.repaint();
}
});
JPanel jp = new JPanel();
jp.add(selectionType);
jp.add(selectionMode);
JScrollPane jsp = new JScrollPane(table);
Container c = f.getContentPane();
c.add(jsp, BorderLayout.CENTER);
c.add(jp, BorderLayout.SOUTH);
f.setSize(300, 250);
f.show();
}
public static void main(String args[]) {
new TableIt();
}
}
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