JTable dengan Custom Cell Editor dan Renderer

package jtablecustom;
 
import java.awt.BorderLayout;
import java.awt.Color;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import javax.swing.table.DefaultTableModel;
 
/**
 *
 * @author Konglie
 */
public class JTableCustom extends JFrame {
    // akan diakses dari CustomRenderer_Color
    // dibuat static agar lebih mudah
    // dalam kasus sebenarnya, bisa saja ambil dari database, atau datasource lainnya
    public static List<String> colorChoices;
    public static List<Color> colors;
 
    public JTableCustom(){
        super("JTable with custom elements");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        initComponents();
        pack();
        setLocationRelativeTo(null);
        setVisible(true);
    }
 
    private JTable table;
    private DefaultTableModel model;
    private void initComponents(){
        // daftar pilihan warna, akan digunakan sebagai contoh combobox
        colorChoices = new ArrayList<String>();
        colorChoices.add("Merah");
        colorChoices.add("Biru");
        colorChoices.add("Pink");
        colorChoices.add("#00FF00");
 
        // korelasi nama warna dengan object warna sesungguhnya
        // urutan harus sama (secara logical) dengan colorChoices
        colors = new ArrayList<Color>();
        colors.add(Color.RED);
        colors.add(Color.BLUE);
        colors.add(Color.PINK);
        // contoh membuat warna dari kode hexa
        colors.add(new Color(0x00FF00));
 
        String[] columns = new String[]{"No.", "Teks", "ComboBox", "Spinner"};
        model = new DefaultTableModel(null, columns){
            @Override
            public boolean isCellEditable(int row, int column) {
                // kolom "No." tidak dapat diedit
                return column > 0;
            }
        };
        table = new JTable(model);
        table.setRowHeight(25);
 
        // combobox
        // misalnya, memilih warna
        table.getColumnModel().getColumn(2).setCellRenderer(new CustomRenderer_Color());
        table.getColumnModel().getColumn(2).setCellEditor(new CustomEditor_ComboBox());
 
        // JSpinner
        table.getColumnModel().getColumn(3).setCellEditor(new CustomEditor_Spinner());
 
        // isi data table
        Random r = new Random();
        for(int i = 1; i<= 10; i++){
            model.addRow(new Object[]{
                i,
                "Baris ke: " + i,
                colorChoices.get(r.nextInt(colorChoices.size())),
                1990 - i 
            });
        }
 
        JScrollPane sp = new JScrollPane(table);
        getContentPane().add(sp, BorderLayout.CENTER);
    }
 
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable(){
            @Override
            public void run(){
                new JTableCustom();
            }
        });
    }
 
}

package jtablecustom;
 
import java.awt.Color;
import java.awt.Component;
import javax.swing.JTable;
import javax.swing.table.DefaultTableCellRenderer;
 
/**
 *
 * @author Konglie
 */
public class CustomRenderer_Color extends DefaultTableCellRenderer {
    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column){
        Component cell = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
        // cell dengan index 2 adalah lokasi warna
        String warna = table.getValueAt(row, 2).toString();
        Color background = JTableCustom.colors.get(
                JTableCustom.colorChoices.indexOf(warna)
        );
        cell.setBackground(background);
 
        // warna text
        cell.setForeground(Color.WHITE);
 
        return cell;
    }
}

package jtablecustom;
 
import java.awt.Component;
import javax.swing.AbstractCellEditor;
import javax.swing.JComboBox;
import javax.swing.JTable;
import javax.swing.table.TableCellEditor;
 
/**
 *
 * @author Konglie
 */
public class CustomEditor_ComboBox extends AbstractCellEditor implements TableCellEditor {
    JComboBox cmp = null;
    @Override
    public Object getCellEditorValue() {
        init();
        return JTableCustom.colorChoices.get(cmp.getSelectedIndex());
    }
 
    @Override
    public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
        init();
 
        // pilih warna saat ini
        cmp.setSelectedIndex(JTableCustom.colorChoices.indexOf(value.toString()));
 
        return cmp;
    }
 
    private void init(){
        // jika sudah pernah di-initialize, ya sudah biarkan saja
        if(cmp != null){
            return;
        }
 
        cmp = new JComboBox(JTableCustom.colorChoices.toArray());
        cmp.setEditable(false);
        cmp.setSelectedIndex(0);
    }
 
}

package jtablecustom;
 
import java.awt.Component;
import javax.swing.AbstractCellEditor;
import javax.swing.JSpinner;
import javax.swing.JTable;
import javax.swing.SpinnerModel;
import javax.swing.SpinnerNumberModel;
import javax.swing.table.TableCellEditor;
 
/**
 *
 * @author Konglie
 */
public class CustomEditor_Spinner extends AbstractCellEditor implements TableCellEditor {
    JSpinner cmp = null;
 
    @Override
    public Object getCellEditorValue() {
        init();
        return cmp.getModel().getValue().toString();
    }
 
    @Override
    public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
        init();
 
        try {
            // nilai saat ini
            cmp.getModel().setValue(Integer.parseInt(value.toString()));
        } catch(Exception e){}
 
        return cmp;
    }
 
    private void init(){
        // jika sudah pernah di-initialize, ya sudah biarkan saja
        if(cmp != null){
            return;
        }
 
        // contoh data spinner
        // mulai dari 1975, minimum 1950, max 2000, 
        // tambahkan/kurangi 1 untuk setiap kenaikan/penurunan
        SpinnerModel sm = new SpinnerNumberModel(1975, 1950, 2000, 1);
        cmp = new JSpinner(sm);
 
        // menghilang format angka ribuan
        cmp.setEditor(new JSpinner.NumberEditor(cmp, "#"));
    }
}