Hi,
I am fairly new to the whole gui/event-driven model of programming and am
hoping that someone can offer me some advice.
I've written a class in java that when called , displays a 'pop-up' window
with a number of buttons on it. When a user hits a button, a value is
returned.
I've integrated this into Jess in the following way:
(bind ?x (new popupwindow))
(bind ?y (call ?x get-return-value))
Where 'get-return-value' is the method within the class 'popupwindow' that
waits for the user to click on a button.
When I first implemented this, the 2nd line of the above code would fire off
the method that displays the window and then immediately continue with the
next jess program statement.
I understand why it does this, but what I want to happen is that the jess
program execution is halted until a user has pressed a button on the pop up
window.
The only way I have managed to do this is to put a holding loop in the java
method which waits until a user has clicked a button. The code for this
loop is as follows:
while (retval==0)
{
try {
Thread.sleep(1500);
}
catch (InterruptedException e)
{
return 0;
}
}
return retval;
Within the ActionListener portion of the button code, if a user hits a
button the variable retval is modified to an integer value.
Anyway, my question is, is there a more elegant way of doing this? It seems
to me to be a bit of kludge, but I am unsure of what else I can do. Any
help would be really appreciated.
thanks
Neil
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