Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.AbstractCellEditor;
import javax.swing.DefaultListCellRenderer;
import javax.swing.JButton;
import javax.swing.JColorChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.CellEditorListener;
import javax.swing.event.ChangeEvent;
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;

public class Main {
    public static void main(String args[]) {
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        TableModel model = new ColorTableModel();
        JTable table = new JTable(model);

        TableColumn column = table.getColumnModel().getColumn(2);

        ComboTableCellRenderer renderer = new ComboTableCellRenderer();
        column.setCellRenderer(renderer);

        TableCellEditor editor = new ColorChooserEditor();
        column.setCellEditor(editor);

        JScrollPane scrollPane = new JScrollPane(table);
        frame.add(scrollPane, BorderLayout.CENTER);
        frame.setSize(400, 150);
        frame.setVisible(true);
    }
}

class ColorChooserEditor extends AbstractCellEditor implements TableCellEditor {

    private JButton delegate = new JButton();

    Color savedColor;

    public ColorChooserEditor() {
        ActionListener actionListener = new ActionListener() {
            public void actionPerformed(ActionEvent actionEvent) {
                Color color = JColorChooser.showDialog(delegate, "Color Chooser", savedColor);
                ColorChooserEditor.this.changeColor(color);
            }
        };
        delegate.addActionListener(actionListener);
        CellEditorListener lis = new CellEditorListener() {
            @Override
            public void editingCanceled(ChangeEvent e0) {
                System.out.println(e0);

            }

            @Override
            public void editingStopped(ChangeEvent e1) {
                System.out.println(e1);
            }
        };
        addCellEditorListener(lis);
        removeCellEditorListener(lis);
    }

    public Object getCellEditorValue() {
        return savedColor;
    }

    private void changeColor(Color color) {
        if (color != null) {
            savedColor = color;
        }
    }

    public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row,
            int column) {
        changeColor((Color) value);
        return delegate;
    }
}

class ComboTableCellRenderer implements TableCellRenderer {
    DefaultListCellRenderer listRenderer = new DefaultListCellRenderer();

    DefaultTableCellRenderer tableRenderer = new DefaultTableCellRenderer();

    private void configureRenderer(JLabel renderer, Object value) {
        renderer.setBackground((Color) value);
    }

    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", Boolean.TRUE, Color.RED }, { "2", Boolean.TRUE, Color.BLUE },
            { "3", Boolean.FALSE, Color.GREEN }, { "4", Boolean.TRUE, Color.MAGENTA },
            { "5", Boolean.FALSE, Color.PINK }, };

    String columnNames[] = { "Number", "Boolean", "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);
    }
}