如何获取Java工具提示的大小

Question

I have a Component where getToolTipText(MouseEvent) returns some HTML so it's nicely formatted (including showing multiple lines). However I want to place the tooltip (by overriding getToolTipLocation(MouseEvent)) to try to make sure it isn't over certain parts of the window, and to do that I need to know the dimensions the tooltip will have. Is there a way I can do this?

Answer 1

javax.swing.JToolTip inherits getPreferredSize() from javax.swing.JComponent so you can do something like:

Dimension d = myToolTip.getPreferredSize();

And use Dimension d in your getToolTipLocation(MouseEvent)