How to know when does a J

From	lichuan.nj@gmail.com.remove-dii-this
Subject	How to know when does a J
Message-ID	<1178876544.944041.88940@q75g2000hsh.googlegroups.com> (permalink)
Newsgroups	comp.lang.java.gui
Date	2011-04-27 15:34 +0000
Organization	TDS.net

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  To: comp.lang.java.gui
Hello everyone, I would like to ask something.

I have few tabs, each contains a JTree in a JPanel to display a
(large) hierarchy. When I give the menu command to populate the trees
from an external file, I want only that tree in the currently visible
tab to be built. And when I switch to another tab later, it will does
the delayed instantiation.

The question is how can I get the visibility of a JTree contain in a
JPanel? isVisible, isShown on JTree seem not working. What is it the
semantics of isVisible, isShown for components in a tab? Yes I can
detect the visibility of the container JPanel insterd, but it breaks
in the boundary of several components in my program...

Thanks a lot in advance!

Chuan Li

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How to know when does a J lichuan.nj@gmail.com.remove-dii-this - 2011-04-27 15:34 +0000
  Re: How to know when does "visionset" <visionset@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
  Re: How to know when does "bcr666" <bcr666@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
    Re: How to know when does lichuan.nj@gmail.com.remove-dii-this - 2011-04-27 15:34 +0000

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