ToolBarExample.java Source code

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Here is the source code for ToolBarExample.java

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/*
Java Swing, 2nd Edition
By Marc Loy, Robert Eckstein, Dave Wood, James Elliott, Brian Cole
ISBN: 0-596-00408-7
Publisher: O'Reilly 
*/
// ToolBarExample.java
// An example of JToolBar. The actions used to build the toolbar are also
// placed in a JMenu to further demonstrate the flexibility of the Action
// class. (See the examples in Chapter 3 for more details on Action.)
//

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

import javax.swing.AbstractAction;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JPanel;
import javax.swing.JTextPane;
import javax.swing.JToolBar;
import javax.swing.KeyStroke;
import javax.swing.border.BevelBorder;

public class ToolBarExample extends JPanel {

    public JTextPane pane;

    public JMenuBar menuBar;

    public JToolBar toolBar;

    String fonts[] = { "Serif", "SansSerif", "Monospaced", "Dialog", "DialogInput" };

    public ToolBarExample() {
        menuBar = new JMenuBar();

        // Create a set of actions to use in both the menu and toolbar
        DemoAction leftJustifyAction = new DemoAction("Left", new ImageIcon("1.gif"), "Left justify text", 'L');
        DemoAction rightJustifyAction = new DemoAction("Right", new ImageIcon("2.gif"), "Right justify text", 'R');
        DemoAction centerJustifyAction = new DemoAction("Center", new ImageIcon("3.gif"), "Center justify text",
                'M');
        DemoAction fullJustifyAction = new DemoAction("Full", new ImageIcon("4.gif"), "Full justify text", 'F');

        JMenu formatMenu = new JMenu("Justify");
        formatMenu.add(leftJustifyAction);
        formatMenu.add(rightJustifyAction);
        formatMenu.add(centerJustifyAction);
        formatMenu.add(fullJustifyAction);

        menuBar.add(formatMenu);

        toolBar = new JToolBar("Formatting");
        toolBar.add(leftJustifyAction);
        toolBar.add(rightJustifyAction);
        toolBar.add(centerJustifyAction);
        toolBar.add(fullJustifyAction);

        toolBar.addSeparator();
        JLabel label = new JLabel("Font");
        toolBar.add(label);

        toolBar.addSeparator();
        JComboBox combo = new JComboBox(fonts);
        combo.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                try {
                    pane.getStyledDocument().insertString(0,
                            "Font [" + ((JComboBox) e.getSource()).getSelectedItem() + "] chosen!\n", null);
                } catch (Exception ex) {
                    ex.printStackTrace();
                }
            }
        });
        toolBar.add(combo);

        //  Disable one of the Actions
        fullJustifyAction.setEnabled(false);
    }

    public static void main(String s[]) {

        ToolBarExample example = new ToolBarExample();
        example.pane = new JTextPane();
        example.pane.setPreferredSize(new Dimension(250, 250));
        example.pane.setBorder(new BevelBorder(BevelBorder.LOWERED));
        example.toolBar.setMaximumSize(example.toolBar.getSize());

        JFrame frame = new JFrame("Menu Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setJMenuBar(example.menuBar);
        frame.getContentPane().add(example.toolBar, BorderLayout.NORTH);
        frame.getContentPane().add(example.pane, BorderLayout.CENTER);
        frame.pack();
        frame.setVisible(true);
    }

    class DemoAction extends AbstractAction {

        public DemoAction(String text, Icon icon, String description, char accelerator) {
            super(text, icon);
            putValue(ACCELERATOR_KEY,
                    KeyStroke.getKeyStroke(accelerator, Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
            putValue(SHORT_DESCRIPTION, description);
        }

        public void actionPerformed(ActionEvent e) {
            try {
                pane.getStyledDocument().insertString(0, "Action [" + getValue(NAME) + "] performed!\n", null);
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }
    }
}