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*
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package swingnodesample;
import java.awt.Color;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import javax.swing.AbstractButton;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.ImageIcon;
/*
* ButtonHtml.java uses the following files:
* images/right.gif
* images/middle.gif
* images/left.gif
*/
public class ButtonHtml extends JPanel
implements ActionListener {
protected JButton b1, b2, b3;
public ButtonHtml() {
ImageIcon leftButtonIcon = createImageIcon("images/right.gif");
ImageIcon middleButtonIcon = createImageIcon("images/middle.gif");
ImageIcon rightButtonIcon = createImageIcon("images/left.gif");
b1 = new JButton("<html><center><b><u>D</u>isable</b><br>"
+ "<font color=#ffffdd>middle button</font>",
leftButtonIcon);
Font font = b1.getFont().deriveFont(Font.PLAIN);
b1.setFont(font);
b1.setVerticalTextPosition(AbstractButton.CENTER);
b1.setHorizontalTextPosition(AbstractButton.LEADING); //aka LEFT, for left-to-right locales
b1.setMnemonic(KeyEvent.VK_D);
b1.setActionCommand("disable");
b2 = new JButton("middle button", middleButtonIcon);
b2.setFont(font);
b2.setForeground(new Color(0xffffdd));
b2.setVerticalTextPosition(AbstractButton.BOTTOM);
b2.setHorizontalTextPosition(AbstractButton.CENTER);
b2.setMnemonic(KeyEvent.VK_M);
b3 = new JButton("<html><center><b><u>E</u>nable</b><br>"
+ "<font color=#ffffdd>middle button</font>",
rightButtonIcon);
b3.setFont(font);
//Use the default text position of CENTER, TRAILING (RIGHT).
b3.setMnemonic(KeyEvent.VK_E);
b3.setActionCommand("enable");
b3.setEnabled(false);
//Listen for actions on buttons 1 and 3.
b1.addActionListener(this);
b3.addActionListener(this);
b1.setToolTipText("Click this button to disable the middle button.");
b2.setToolTipText("This middle button does nothing when you click it.");
b3.setToolTipText("Click this button to enable the middle button.");
//Add Components to this container, using the default FlowLayout.
add(b1);
add(b2);
add(b3);
}
@Override
public void actionPerformed(ActionEvent e) {
if ("disable".equals(e.getActionCommand())) {
b2.setEnabled(false);
b1.setEnabled(false);
b3.setEnabled(true);
} else {
b2.setEnabled(true);
b1.setEnabled(true);
b3.setEnabled(false);
}
}
/** Returns an ImageIcon, or null if the path was invalid.
* @param path
* @return
*/
protected static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = ButtonHtml.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find file: " + path);
return null;
}
}
}