animate move of JSplitPane divider?

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#1402

From: Sam Seaborn
Date: Fri, 19 Dec 2003 18:56

33 lines
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Hi,

I have a routine that automatically moves the divider of a JSplitPane from,
say, 0 to 100 (to show/hide a panel in my frame).  I simply use
splitPane.setDividerLocation(i) and it works great.

The thing is, I want to divider to slide back and forth with a smooth
"animated" effect.

I have tried something like the following:

// when button clicked
for (int iLocation=0; iLocation<100; iLocation++) {
  final int i = iLocation;
  SwingUtilities.invokeLater(new Runnable() {
    public void run() {
      splitPane.setDividerLocation(i);
      revalidate();
      try {
        Thread.sleep(100);
      } catch (Exception x) {}
    }
  });
}

But the result is, click the button, get a pause for a couple seconds, then
the divider goes the final location.  I don't see any animation.

What am I doing wrong?

Any help is greatly appreciated,

SLL

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Subject: animate move of JSplitPane divider?
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