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Waiting Dialog

2 replies on 1 page. Most recent reply: Feb 5, 2004 11:59 PM by Matthias Neumair

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Matthias Neumair

Posts: 660
Nickname: neumi
Registered: Sep, 2003

Waiting Dialog Posted: Feb 4, 2004 2:01 AM
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When I start a longer operation, I want to open a "plese wait" dialog window.

I have the following problem: The dialog opens, but remains empty.
Only when the import tourint is finished, the components get drawed.

I tried something like this:
dlg = new MyDialog (parentFrame, notModal, ...);
dlg.show();
doImport();
dlg.setCloseButtonActive(true); //resets mousepointer, enables input components


mahashankar sarangapani

Posts: 7
Nickname: greatmaha
Registered: Feb, 2004

Re: Waiting Dialog Posted: Feb 5, 2004 10:25 PM
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Hi mathies

you can use one class that should extends dialog and runnable. Through this thread you need make this to sleep
it. Befour enter in you application you should make an instance of this dialog thread. After you have finished you should make this thead to null.
if you need further clarification please contact me.

Matthias Neumair

Posts: 660
Nickname: neumi
Registered: Sep, 2003

Re: Waiting Dialog Posted: Feb 5, 2004 11:59 PM
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I first tried something like that.
The problem was, that the runnable dialog must not be associated with the main form.
Problem: I still can click in the main form.

So I worked the other way around:
I created a class extending the Thread class and put the import routine in this class. When the import routine is finished, it closes the dialog and I let the main program preceed.
It just works fine.

One other thing.
The dialog uses a JScrollPane containing a JTextArea to display the import routine's log messages.

I want the JScrollPane to follow the last line of the JTextArea. If a new line is added, it should scroll down.
What is the most effective way to do this?
I would prefer not using font metrics or something like that (but if there is no other way ... ).

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