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Processing dialog

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  Processing dialog "kvram" <kvram@THRWHITE.remove-dii-this> - 2011-04-27 15:36 +0000
    Re: Processing dialog "Thomas Fritsch" <thomas.fritsch@THRWHITE.remove-dii-this> - 2011-04-27 15:36 +0000
      Re: Processing dialog "kvram" <kvram@THRWHITE.remove-dii-this> - 2011-04-27 15:36 +0000
    Re: Processing dialog "Roedy Green" <roedy.green@THRWHITE.remove-dii-this> - 2011-04-27 15:36 +0000
    Re: Processing dialog "Nigel Wade" <nigel.wade@THRWHITE.remove-dii-this> - 2011-04-27 15:36 +0000

#1926 — Processing dialog

  To: comp.lang.java.gui

Hello!

I wonder how to do the following:

i have a function connected to a button. works fine.
But this function is very heavy in calculating and it
locks up the user interface. So i thought to run the
function inside a thread. (that i have not done yet
but i will do). However, i need a simple JDialog kind
of thing which pops up in the middle of screen to tell
the user "Processring.." and disapears as soon as the
function is done. I wonder what is the best method of
doing it in Swing? what is the best class to use and how
to interact with the dialog to make it disappear from the
screen upon function finish.

thanks for your time/thoughts,
kave

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#1927

  To: comp.lang.java.gui
kvram@passagen.se wrote:
> i have a function connected to a button. works fine.
> But this function is very heavy in calculating and it
> locks up the user interface. So i thought to run the
> function inside a thread. (that i have not done yet
> but i will do). However, i need a simple JDialog kind
> of thing which pops up in the middle of screen to tell
> the user "Processring.." and disapears as soon as the
> function is done. I wonder what is the best method of
> doing it in Swing? what is the best class to use and how
> to interact with the dialog to make it disappear from the
> screen upon function finish.
Sounds like you need Swings's JProgressBar.
There is a chapter (with examples) in the Sun's Java tutorial:
"How to Use Progress Bars"
http://java.sun.com/docs/books/tutorial/uiswing/components/progress.html

-- 
Thomas

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#1928

  To: comp.lang.java.gui
On 1 Juli, 15:55, Thomas Fritsch <i.dont.like.s...@invalid.com> wrote:
> k...@passagen.se wrote:
> > i have a function connected to a button. works fine.
> > But this function is very heavy in calculating and it
> > locks up the user interface. So i thought to run the
> > function inside a thread. (that i have not done yet
> > but i will do). However, i need a simple JDialog kind
> > of thing which pops up in the middle of screen to tell
> > the user "Processring.." and disapears as soon as the
> > function is done. I wonder what is the best method of
> > doing it in Swing? what is the best class to use and how
> > to interact with the dialog to make it disappear from the
> > screen upon function finish.
>
> Sounds like you need Swings's JProgressBar.
> There is a chapter (with examples) in the Sun's Java tutorial:
> "How to Use Progress Bars"http://java.sun.com/docs/books/tutorial/uiswing/components/progress.html
>
> --
> Thomas


Exatctly what i needed! Thanks a lot!
kave

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#1929

  To: comp.lang.java.gui
On Sun, 01 Jul 2007 06:46:12 -0700, kvram@passagen.se wrote, quoted or
indirectly quoted someone who said :

>However, i need a simple JDialog kind
>of thing which pops up in the middle of screen to tell
>the user "Processring.." and disapears as soon as the
>function is done.

Just change the cursor.  It will be much faster and more traditional.
--
Roedy Green Canadian Mind Products
The Java Glossary
http://mindprod.com

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#1930

  To: comp.lang.java.gui
 kvram@passagen.se wrote:

> 
> Hello!
> 
> I wonder how to do the following:
> 
> i have a function connected to a button. works fine.
> But this function is very heavy in calculating and it
> locks up the user interface. So i thought to run the
> function inside a thread. (that i have not done yet
> but i will do). However, i need a simple JDialog kind
> of thing which pops up in the middle of screen to tell
> the user "Processring.." and disapears as soon as the
> function is done. I wonder what is the best method of
> doing it in Swing? what is the best class to use and how
> to interact with the dialog to make it disappear from the
> screen upon function finish.
> 
> thanks for your time/thoughts,
> kave

If you are using Java 1.6 (or should it be 6?) then SwingWorker is one solution.
Post a dialog of some kind prior to initiating the worker thread, and have the
SwingWorker.done() method take it down.

http://java.sun.com/docs/books/tutorial/uiswing/concurrency/worker.html

-- 
Nigel Wade, System Administrator, Space Plasma Physics Group,
            University of Leicester, Leicester, LE1 7RH, UK 
E-mail :    nmw@ion.le.ac.uk 
Phone :     +44 (0)116 2523548, Fax : +44 (0)116 2523555

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