Minimalist tooltip

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Rob McDonald - 13 Jan 2006 03:44 GMT

I would like to have tooltips pop up when the user hovers over a
Rectangle2D. From what I can tell, JToolTips are meant to be attached
to a JComponent. I'd rather not make every 'hot box' a superclass of
JComponent.

Whats the best way to go about doing this?

Thanks for any suggestions,

Rob

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Thomas Weidenfeller - 13 Jan 2006 08:22 GMT

> I would like to have tooltips pop up when the user hovers over a
> Rectangle2D. From what I can tell, JToolTips are meant to be attached
> to a JComponent. I'd rather not make every 'hot box' a superclass of
> JComponent.

But your Rectangle2D is for sure painted on a JComponent of some kind?
Override the component's getTooltipText(MouseEvent) and provide
different texts. This of course requires you have a suitable (not to
slow) way of mapping coordinates to your rectangles.

/Thomas

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The comp.lang.java.gui FAQ:
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http://www.uni-giessen.de/faq/archiv/computer-lang.java.gui.faq/

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Rob McDonald - 13 Jan 2006 14:54 GMT

> But your Rectangle2D is for sure painted on a JComponent of some kind?
> Override the component's getTooltipText(MouseEvent) and provide
> different texts. This of course requires you have a suitable (not to
> slow) way of mapping coordinates to your rectangles.

I'm sorry, but that was far too easy. Could you please come up with a more
difficult approach? (:

Actually, it took me a while to realize that I needed to override
getToolTipText() not getTooltipText(). And then, you still have to 'turn
on' the tool tip with JComponent.setToolTipText("blah"); Even though you
don't care about "blah" otherwise, the listeners aren't set up.

Thanks a bunch,

Rob

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Minimalist tooltip

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