Pausing execution of method for an event.
Greetings.
I wish to do something like the following:
Execute the first half of a method then have it pause midstride, only continuing once until an event occurs (like a button click or a keypress).
In many ways, I am trying to replicate the event handling of a dialog box, but without using JDialog, JOptionPane, etc., and so far have not met with any success in this.
Any assistance would be appreciated. Thank you.
[448 byte] By [
kv1at3485] at [2007-9-30 22:51:41]
Hi,Usually it's not a good ideia to wait inside a method, why don't you divide your method in two? Then when the event occur just call the second method...Rgds,Andre'
Indeed. Unfortunately I do not see how that would lead to a solution to my problem. I shall try to explain.
Currently, I have something like this:
public class ParentFrame extends JInternalFrame {
private void createPsuedoDialog() {
// As you can see, I am trying to replicate the convenient functioning of a
// JOptionPane, but for a number of reasons, I am prevented from using
// JOptionPane.
int n=PseudoDialog.createDialog(...);
}
}
public class PsuedoDialog extends JInternalFrame implements ActionListener {
private int buttonClicked=0;
public int createDialog(...) {
// Put a glasspane over the parent frame. Create dialog interface here and
// display the dialog.
...
// Wait for the user to click a button here.
....
// Return an interger value representing the button clicked.
return buttonClicked;
}
public void actionPerformed(...) {
// Assign a value to buttonClicked depending on the button selected, and
// remove the glasspane from the parent frame.
...
}
}
The only other way I have solved this is by having the parent frame's actionListener detect clicks from the dialog's buttons, but this makes the system very inconvenient and cumbersome.
Hi,
It doesn't seem to be an easy task, anyway try to look at the Dialog (from SUN) code... I took this from there:
// We have two mechanisms for blocking: 1. If we're on the
// EventDispatchThread, start a new event pump. 2. If we're
// on any other thread, call wait() on the treelock.
From the method show() of the Dialog class
Good luck,
Andre'
