ReverseLabels.java Inherits from CloseableFrame.java and uses ReversibleLabel.java.
**********************
ReverseLabels.java
**********************
import java.awt.*;
******************
public class ReverseLabels extends CloseableFrame {
public static void main(String[] args) {
new ReverseLabels();
}
public ReverseLabels() {
super("Reversible Labels");
setLayout(new FlowLayout());
setBackground(Color.lightGray);
setFont(new Font("Serif", Font.BOLD, 18));
ReversibleLabel label1 =
new ReversibleLabel("Black on White",
Color.white, Color.black);
add(label1);
ReversibleLabel label2 =
new ReversibleLabel("White on Black",
Color.black, Color.white);
add(label2);
pack();
setVisible(true);
}
}
/./././././././././.
CloseableFrame.java
&&&&&&&&&&&&&&&&&&&
import java.awt.*;
import java.awt.event.*;
/** A Frame that you can actually quit. Used as the starting
* point for most Java 1.1 graphical applications.
*
*******************
*/
public class CloseableFrame extends Frame {
public CloseableFrame(String title) {
super(title);
enableEvents(AWTEvent.WINDOW_EVENT_MASK);
}
/** Since we are doing something permanent, we need
* to call super.processWindowEvent first.
*/
public void processWindowEvent(WindowEvent event) {
super.processWindowEvent(event); // Handle listeners.
if (event.getID() == WindowEvent.WINDOW_CLOSING) {
// If the frame is used in an applet, use dispose().
System.exit(0);
}
}
}
&&&&&&&&&&&&&&&&&&&&
ReversibleLabel.java.
&&&&&&&&&&&&&&&&&&&&
import java.awt.*;
import java.awt.event.*;
/** A Label that reverses its background and
* foreground colors when the mouse is over it.
*
**********************
public class ReversibleLabel extends Label {
public ReversibleLabel(String text,
Color bgColor, Color fgColor) {
super(text);
MouseAdapter reverser = new MouseAdapter() {
public void mouseEntered(MouseEvent event) {
reverseColors();
}
public void mouseExited(MouseEvent event) {
reverseColors(); // or mouseEntered(event);
}
};
addMouseListener(reverser);
setText(text);
setBackground(bgColor);
setForeground(fgColor);
}
protected void reverseColors() {
Color fg = getForeground();
Color bg = getBackground();
setForeground(bg);
setBackground(fg);
}
}
#############################
Note: Brought from our old site: http://www.salearningschool.com/example_codes/ on Jan 2nd, 2017 From: http://sitestree.com/?p=10343
Categories:Programming Code Examples, Java/J2EE/J2ME, AWT Components
Tags:Java/J2EE/J2MEAWT Components
Post Data:2017-01-02 16:04:35
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