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blinking tab pane

 
Greenhorn
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i created a tabbed pane with 3 jPanel.
1 of them is for output display.
how can i make it's title blinking when there is output to be displayed?
 
Ranch Hand
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You can write a thread for setting the title of the Output tab (say tab #3 in (0, 1, 2, 3)) TABBEDPANE.setTitleAt(3, "Output") and TABBEDPANE.setTitleAt(3, " ") alternately with a 600 ms delay(sleep interval)...
 
Bartender
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Tarun Bolla wrote:You can write a thread for setting the title of the Output tab (say tab #3 in (0, 1, 2, 3)) TABBEDPANE.setTitleAt(3, "Output") and TABBEDPANE.setTitleAt(3, " ") alternately with a 600 ms delay(sleep interval)...



Did you try that to see what happens?

Also, I recommend you go through these two tutorials: How to Use Swing Timers and Concurrency in Swing.
 
Darryl Burke
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sk said wrote:i created a tabbed pane with 3 jPanel.
1 of them is for output display.
how can i make it's title blinking when there is output to be displayed?



You can try using setForegroundAt(...) using a Swing Timer.
 
Tarun Bolla
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Darryl Burke wrote:
Did you try that to see what happens?



Here is a sample code that demonstrates what i mean...



After running it...click on the JLabel with Text "1" in the first tab and see that the output tab text blinks...
 
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I personally would never use blinking. I'd instead use colouring - make it red or something like that when there's output, then make it black again when the tab is selected. Since Java 6 JTabbedPane has method setTabComponentAt which allows you to set a simple JLabel for that one tab, letting the default UI work for the others. There's no need for a timer then; keep a reference to this JLabel and simply change its foreground colour when needed.

Edit: or use setForegroundAt. I never knew this method existed. Thanks Darryl!

And Tarun, you clearly have not read the concurrency in Swing page Darryl linked to, or you wouldn't be using a regular thread.
 
Darryl Burke
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Tarun Bolla wrote:

Darryl Burke wrote:
Did you try that to see what happens?



Here is a sample code that demonstrates what i mean...



1. That's not what you wrote earlier.

TABBEDPANE.setTitleAt(3, "Output") and TABBEDPANE.setTitleAt(3, " ")



2. The number of spaces is totally dependent on the Font, making this a very fragile 'solution'.

Here's a more robust approach:
 
Tarun Bolla
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If not spaces ... colors can do that....

 
Don't get me started about those stupid light bulbs.
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