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TableDialogEditDemo.javaAPI DocExample10809Tue Dec 12 18:59:16 GMT 2000None

TableDialogEditDemo

public class TableDialogEditDemo extends JFrame
This is like TableEditDemo, except that it substitutes a Favorite Color column for the Last Name column and specifies a custom cell renderer and editor for the color data.

Fields Summary
private boolean
DEBUG
Constructors Summary
public TableDialogEditDemo()


      
        super("TableDialogEditDemo");

        MyTableModel myModel = new MyTableModel();
        JTable table = new JTable(myModel);
        table.setPreferredScrollableViewportSize(new Dimension(500, 70));

        //Create the scroll pane and add the table to it. 
        JScrollPane scrollPane = new JScrollPane(table);

        //Set up renderer and editor for the Favorite Color column.
        setUpColorRenderer(table);
        setUpColorEditor(table);

        //Set up real input validation for integer data.
        setUpIntegerEditor(table);

        //Add the scroll pane to this window.
        getContentPane().add(scrollPane, BorderLayout.CENTER);

        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
Methods Summary
public static voidmain(java.lang.String[] args)

        TableDialogEditDemo frame = new TableDialogEditDemo();
        frame.pack();
        frame.setVisible(true);
private voidsetUpColorEditor(javax.swing.JTable table)

        //First, set up the button that brings up the dialog.
        final JButton button = new JButton("") {
            public void setText(String s) {
                //Button never shows text -- only color.
            }
        };
        button.setBackground(Color.white);
        button.setBorderPainted(false);
        button.setMargin(new Insets(0,0,0,0));

        //Now create an editor to encapsulate the button, and
        //set it up as the editor for all Color cells.
        final ColorEditor colorEditor = new ColorEditor(button);
        table.setDefaultEditor(Color.class, colorEditor);

        //Set up the dialog that the button brings up.
        final JColorChooser colorChooser = new JColorChooser();
        ActionListener okListener = new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                colorEditor.currentColor = colorChooser.getColor();
            }
        };
        final JDialog dialog = JColorChooser.createDialog(button,
                                        "Pick a Color",
                                        true,
                                        colorChooser,
                                        okListener,
                                        null); //XXXDoublecheck this is OK

        //Here's the code that brings up the dialog.
        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                button.setBackground(colorEditor.currentColor);
                colorChooser.setColor(colorEditor.currentColor);
                //Without the following line, the dialog comes up
                //in the middle of the screen.
                //dialog.setLocationRelativeTo(button);
                dialog.show();
            }
        });
private voidsetUpColorRenderer(javax.swing.JTable table)

        table.setDefaultRenderer(Color.class,
                                 new ColorRenderer(true));
private voidsetUpIntegerEditor(javax.swing.JTable table)

        //Set up the editor for the integer cells.
        final WholeNumberField integerField = new WholeNumberField(0, 5);
        integerField.setHorizontalAlignment(WholeNumberField.RIGHT);

        DefaultCellEditor integerEditor = 
            new DefaultCellEditor(integerField) {
                //Override DefaultCellEditor's getCellEditorValue method
                //to return an Integer, not a String:
                public Object getCellEditorValue() {
                    return new Integer(integerField.getValue());
                }
            };
        table.setDefaultEditor(Integer.class, integerEditor);