Java Source - Tool Bar Demo 2.

Demonstrates a non-floatable tool bar in rollover mode that contains a separator and a non-button component.
Trình bày một thanh công cụ không thể tách riêng ra khỏi ứng dụng hoặc di chuyển nó đến bất kỳ vị trí nào khác trong chương trình.




ToolBarDemo2.java

/*
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 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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package components;

/*
 * ToolBarDemo2.java requires the following addditional files:
 * images/Back24.gif
 * images/Forward24.gif
 * images/Up24.gif
 */

import javax.swing.JToolBar;
import javax.swing.JButton;
import javax.swing.ImageIcon;
import javax.swing.JTextField;

import javax.swing.JFrame;
import javax.swing.JTextArea;
import javax.swing.JScrollPane;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.SwingUtilities;

import java.net.URL;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class ToolBarDemo2 extends JPanel
                          implements ActionListener {
    protected JTextArea textArea;
    protected String newline = "\n";
    static final private String PREVIOUS = "previous";
    static final private String UP = "up";
    static final private String NEXT = "next";
    static final private String SOMETHING_ELSE = "other";
    static final private String TEXT_ENTERED = "text";

    public ToolBarDemo2() {
        super(new BorderLayout());

        //Create the toolbar.
        JToolBar toolBar = new JToolBar("Still draggable");
        addButtons(toolBar);
        toolBar.setFloatable(false);
        toolBar.setRollover(true);

        //Create the text area used for output.  Request
        //enough space for 5 rows and 30 columns.
        textArea = new JTextArea(5, 30);
        textArea.setEditable(false);
        JScrollPane scrollPane = new JScrollPane(textArea);

        //Lay out the main panel.
        setPreferredSize(new Dimension(450, 130));
        add(toolBar, BorderLayout.PAGE_START);
        add(scrollPane, BorderLayout.CENTER);
    }

    protected void addButtons(JToolBar toolBar) {
        JButton button = null;

        //first button
        button = makeNavigationButton("Back24", PREVIOUS,
                                      "Back to previous something-or-other",
                                      "Previous");
        toolBar.add(button);

        //second button
        button = makeNavigationButton("Up24", UP,
                                      "Up to something-or-other",
                                      "Up");
        toolBar.add(button);

        //third button
        button = makeNavigationButton("Forward24", NEXT,
                                      "Forward to something-or-other",
                                      "Next");
        toolBar.add(button);

        //separator
        toolBar.addSeparator();

        //fourth button
        button = new JButton("Another button");
        button.setActionCommand(SOMETHING_ELSE);
        button.setToolTipText("Something else");
        button.addActionListener(this);
        toolBar.add(button);

        //fifth component is NOT a button!
        JTextField textField = new JTextField("A text field");
        textField.setColumns(10);
        textField.addActionListener(this);
        textField.setActionCommand(TEXT_ENTERED);
        toolBar.add(textField);
    }

    protected JButton makeNavigationButton(String imageName,
                                           String actionCommand,
                                           String toolTipText,
                                           String altText) {
        //Look for the image.
        String imgLocation = "images/"
                             + imageName
                             + ".gif";
        URL imageURL = ToolBarDemo2.class.getResource(imgLocation);

        //Create and initialize the button.
        JButton button = new JButton();
        button.setActionCommand(actionCommand);
        button.setToolTipText(toolTipText);
        button.addActionListener(this);

        if (imageURL != null) {                      //image found
            button.setIcon(new ImageIcon(imageURL, altText));
        } else {                                     //no image found
            button.setText(altText);
            System.err.println("Resource not found: "
                               + imgLocation);
        }

        return button;
    }

    public void actionPerformed(ActionEvent e) {
        String cmd = e.getActionCommand();
        String description = null;

        // Handle each button.
        if (PREVIOUS.equals(cmd)) { //first button clicked
            description = "taken you to the previous <something>.";
        } else if (UP.equals(cmd)) { // second button clicked
            description = "taken you up one level to <something>.";
        } else if (NEXT.equals(cmd)) { // third button clicked
            description = "taken you to the next <something>.";
        } else if (SOMETHING_ELSE.equals(cmd)) { // fourth button clicked
            description = "done something else.";
        } else if (TEXT_ENTERED.equals(cmd)) { // text field
            JTextField tf = (JTextField)e.getSource();
            String text = tf.getText();
            tf.setText("");
            description = "done something with this text: "
                          + newline + "  \""
                          + text + "\"";
        }

        displayResult("If this were a real app, it would have "
                        + description);
    }

    protected void displayResult(String actionDescription) {
        textArea.append(actionDescription + newline);
        textArea.setCaretPosition(textArea.getDocument().getLength());
    }

    /**
     * Create the GUI and show it.  For thread safety,
     * this method should be invoked from the
     * event dispatch thread.
     */
    private static void createAndShowGUI() {
        //Create and set up the window.
        JFrame frame = new JFrame("ToolBarDemo2");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //Add content to the window.
        frame.add(new ToolBarDemo2());

        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
    //Schedule a job for the event dispatch thread:
        //creating and showing this application's GUI.
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                //Turn off metal's use of bold fonts
            UIManager.put("swing.boldMetal", Boolean.FALSE);
               createAndShowGUI();
            }
        });
    }
}

Icon của buttons(click phải mouse nhấn save as để tải về).

Kết quả - Result