Mega Code Archive
Editing Table Cells
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import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import javax.swing.DefaultCellEditor;
import javax.swing.DefaultListCellRenderer;
import javax.swing.ImageIcon;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListCellRenderer;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;
class ComboTableCellRenderer implements ListCellRenderer, TableCellRenderer {
DefaultListCellRenderer listRenderer = new DefaultListCellRenderer();
DefaultTableCellRenderer tableRenderer = new DefaultTableCellRenderer();
private void configureRenderer(JLabel renderer, Object value) {
if ((value != null) && (value instanceof Color)) {
renderer.setText(value.toString());
renderer.setBackground((Color)value);
} else {
renderer.setText((String) value);
}
}
public Component getListCellRendererComponent(JList list, Object value, int index,
boolean isSelected, boolean cellHasFocus) {
listRenderer = (DefaultListCellRenderer) listRenderer.getListCellRendererComponent(list, value,
index, isSelected, cellHasFocus);
configureRenderer(listRenderer, value);
return listRenderer;
}
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
boolean hasFocus, int row, int column) {
tableRenderer = (DefaultTableCellRenderer) tableRenderer.getTableCellRendererComponent(table,
value, isSelected, hasFocus, row, column);
configureRenderer(tableRenderer, value);
return tableRenderer;
}
}
class ColorTableModel extends AbstractTableModel {
Object rowData[][] = { { "1", Color.RED },
{ "2", Color.BLUE },
{ "3", Color.GREEN },
{ "4", Color.MAGENTA },
{ "5", Color.PINK }, };
String columnNames[] = { "English","Color" };
public int getColumnCount() {
return columnNames.length;
}
public String getColumnName(int column) {
return columnNames[column];
}
public int getRowCount() {
return rowData.length;
}
public Object getValueAt(int row, int column) {
return rowData[row][column];
}
public Class getColumnClass(int column) {
return (getValueAt(0, column).getClass());
}
public void setValueAt(Object value, int row, int column) {
rowData[row][column] = value;
}
public boolean isCellEditable(int row, int column) {
return (column != 0);
}
}
public class EditableColorColumn {
public static void main(String args[]) {
Color choices[] = { Color.RED, Color.ORANGE, Color.YELLOW, Color.GREEN, Color.BLUE,
Color.MAGENTA };
ComboTableCellRenderer renderer = new ComboTableCellRenderer();
JComboBox comboBox = new JComboBox(choices);
comboBox.setRenderer(renderer);
TableCellEditor editor = new DefaultCellEditor(comboBox);
JFrame frame = new JFrame("Editable Color Table");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
TableModel model = new ColorTableModel();
JTable table = new JTable(model);
TableColumn column = table.getColumnModel().getColumn(1);
column.setCellRenderer(renderer);
column.setCellEditor(editor);
JScrollPane scrollPane = new JScrollPane(table);
frame.add(scrollPane, BorderLayout.CENTER);
frame.setSize(400, 150);
frame.setVisible(true);
}
}
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