src/demo/share/jfc/TableExample/TableExample4.java

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/*
 * This source code is provided to illustrate the usage of a given feature
 * or technique and has been deliberately simplified. Additional steps
 * required for a production-quality application, such as security checks,
 * input validation and proper error handling, might not be present in
 * this sample code.
 */



import javax.swing.*;
import javax.swing.table.*;
import javax.swing.border.*;
import java.awt.Dimension;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.Color;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.UIManager.LookAndFeelInfo;


/**
 * Another JTable example, showing how column attributes can be refined
 * even when columns have been created automatically. Here we create some
 * specialized renderers and editors as well as changing widths and colors
 * for some of the columns in the SwingSet demo table.
 *
 * @author Philip Milne
 */
public class TableExample4 {

    public TableExample4() {
        JFrame frame = new JFrame("Table");
        frame.addWindowListener(new WindowAdapter() {

            @Override
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });

        // Take the dummy data from SwingSet.
        final String[] names = { "First Name", "Last Name", "Favorite Color",
            "Favorite Number", "Vegetarian" };
        final Object[][] data = {
            { "Mark", "Andrews", "Red", new Integer(2), Boolean.TRUE },
            { "Tom", "Ball", "Blue", new Integer(99), Boolean.FALSE },
            { "Alan", "Chung", "Green", new Integer(838), Boolean.FALSE },
            { "Jeff", "Dinkins", "Turquois", new Integer(8), Boolean.TRUE },
            { "Amy", "Fowler", "Yellow", new Integer(3), Boolean.FALSE },
            { "Brian", "Gerhold", "Green", new Integer(0), Boolean.FALSE },
            { "James", "Gosling", "Pink", new Integer(21), Boolean.FALSE },
            { "David", "Karlton", "Red", new Integer(1), Boolean.FALSE },
            { "Dave", "Kloba", "Yellow", new Integer(14), Boolean.FALSE },
            { "Peter", "Korn", "Purple", new Integer(12), Boolean.FALSE },
            { "Phil", "Milne", "Purple", new Integer(3), Boolean.FALSE },
            { "Dave", "Moore", "Green", new Integer(88), Boolean.FALSE },
            { "Hans", "Muller", "Maroon", new Integer(5), Boolean.FALSE },
            { "Rick", "Levenson", "Blue", new Integer(2), Boolean.FALSE },
            { "Tim", "Prinzing", "Blue", new Integer(22), Boolean.FALSE },
            { "Chester", "Rose", "Black", new Integer(0), Boolean.FALSE },
            { "Ray", "Ryan", "Gray", new Integer(77), Boolean.FALSE },
            { "Georges", "Saab", "Red", new Integer(4), Boolean.FALSE },
            { "Willie", "Walker", "Phthalo Blue", new Integer(4), Boolean.FALSE },
            { "Kathy", "Walrath", "Blue", new Integer(8), Boolean.FALSE },
            { "Arnaud", "Weber", "Green", new Integer(44), Boolean.FALSE }
        };

        // Create a model of the data.
        @SuppressWarnings("serial")
        TableModel dataModel = new AbstractTableModel() {
            // These methods always need to be implemented.

            public int getColumnCount() {
                return names.length;
            }

            public int getRowCount() {
                return data.length;
            }

            public Object getValueAt(int row, int col) {
                return data[row][col];
            }

            // The default implementations of these methods in
            // AbstractTableModel would work, but we can refine them.
            @Override
            public String getColumnName(int column) {
                return names[column];
            }

            @Override
            public Class getColumnClass(int c) {
                return getValueAt(0, c).getClass();
            }

            @Override
            public boolean isCellEditable(int row, int col) {
                return true;
            }

            @Override
            public void setValueAt(Object aValue, int row, int column) {
                System.out.println("Setting value to: " + aValue);
                data[row][column] = aValue;
            }
        };

        // Create the table
        JTable tableView = new JTable(dataModel);
        // Turn off auto-resizing so that we can set column sizes
        // programmatically. In this mode, all columns will get their preferred
        // widths, as set blow.
        tableView.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);

        // Create a combo box to show that you can use one in a table.
        JComboBox comboBox = new JComboBox();
        comboBox.addItem("Red");
        comboBox.addItem("Orange");
        comboBox.addItem("Yellow");
        comboBox.addItem("Green");
        comboBox.addItem("Blue");
        comboBox.addItem("Indigo");
        comboBox.addItem("Violet");

        TableColumn colorColumn = tableView.getColumn("Favorite Color");
        // Use the combo box as the editor in the "Favorite Color" column.
        colorColumn.setCellEditor(new DefaultCellEditor(comboBox));

        // Set a pink background and tooltip for the Color column renderer.
        DefaultTableCellRenderer colorColumnRenderer =
                new DefaultTableCellRenderer();
        colorColumnRenderer.setBackground(Color.pink);
        colorColumnRenderer.setToolTipText("Click for combo box");
        colorColumn.setCellRenderer(colorColumnRenderer);

        // Set a tooltip for the header of the colors column.
        TableCellRenderer headerRenderer = colorColumn.getHeaderRenderer();
        if (headerRenderer instanceof DefaultTableCellRenderer) {
            ((DefaultTableCellRenderer) headerRenderer).setToolTipText(
                    "Hi Mom!");
        }

        // Set the width of the "Vegetarian" column.
        TableColumn vegetarianColumn = tableView.getColumn("Vegetarian");
        vegetarianColumn.setPreferredWidth(100);

        // Show the values in the "Favorite Number" column in different colors.
        TableColumn numbersColumn = tableView.getColumn("Favorite Number");
        @SuppressWarnings("serial")
        DefaultTableCellRenderer numberColumnRenderer
                = new DefaultTableCellRenderer() {

            @Override
            public void setValue(Object value) {
                int cellValue = (value instanceof Number) ? ((Number) value).
                        intValue() : 0;
                setForeground((cellValue > 30) ? Color.black : Color.red);
                setText((value == null) ? "" : value.toString());
            }
        };
        numberColumnRenderer.setHorizontalAlignment(JLabel.RIGHT);
        numbersColumn.setCellRenderer(numberColumnRenderer);
        numbersColumn.setPreferredWidth(110);

        // Finish setting up the table.
        JScrollPane scrollpane = new JScrollPane(tableView);
        scrollpane.setBorder(new BevelBorder(BevelBorder.LOWERED));
        scrollpane.setPreferredSize(new Dimension(430, 200));
        frame.getContentPane().add(scrollpane);
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        // Trying to set Nimbus look and feel
        try {
            for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (Exception ex) {
            Logger.getLogger(TableExample4.class.getName()).log(Level.SEVERE,
                    "Failed to apply Nimbus look and feel", ex);
        }

        new TableExample4();
    }
}