Re: JRadioButton, JCheckB
To: comp.lang.java.gui
bcr666 wrote:
I have a need to disable various JCheckBox and JRadioButton objects.
When they are disabled however, I want an "Unavailable Cursor" and I
want the object drawn normally (while being unclickable).
I have subclassed the objects in question, and added this method.
public void setEditable(boolean editable) {
this.editable = editable;
if (editable) {
this.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
super.enableEvents(Event.MOUSE_DOWN | Event.MOUSE_UP);
} else {
this.setCursor(CursorFactory.createUnavailableCursor());
super.disableEvents(Event.MOUSE_DOWN | Event.MOUSE_UP);
}
}
The super.disableEvents() methods however don't seem to do anything in
my case.
I don't really understand all of the relationships in the event
processing but the code below will do what you want. Just for my
curiosity, why don't you want the components to look disabled?
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class test6 extends JFrame {
public test6() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
class KCheckBox extends JCheckBox {
boolean state = true;
public KCheckBox(String label, boolean state) {
super(label,state);
}
public void processMouseEvent(MouseEvent me) {
if (state)
super.processMouseEvent(me);
else
return;
}
public void en(boolean state) {
this.state = state;
}
}
final KCheckBox kb = new KCheckBox("JCheckBox",true);
add(kb,BorderLayout.NORTH);
final JButton b = new JButton("Disable");
b.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
String ac = ae.getActionCommand();
if (ac.equals("Disable")) {
kb.en(false);
b.setText("Enable");
} else if (ac.equals("Enable")) {
kb.en(true);
b.setText("Disable");
}
}
});
add(b,BorderLayout.SOUTH);
pack();
setVisible(true);
}
public static void main(String[] args) {
new test6();
}
}
--
Knute Johnson
email s/nospam/knute/
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