How To Keep Track of Component Location Within JTextPane

I'm inserting JComboBox's into a JTextPane (to allow the user to construct paragraphs), and using the insertComponent(Component) method. After the user selects the JComboBox's, I can't find any way to find the JComboBox's current location. I need to be able to convert the current text plus the selected strings within the JComboBox plus store the last configuration so I can pull it up in the future.
The JComboBox's can easily be shifted around by additional text added or deleted via the keyboard. I know I can at least use a ComponentListener to find out if the user deleted the JComboBox. The only thing I can think of is to use a KeyListener on the JTextPane to keep track of all the Component locations. This seems a bit tedious as they'd all (could be 10 or more in one JTextPane) need to be updated with each keystroke rather than just getting their location at the end.
Does anyone have any ideas on a better way to track the location?
Thanks

So that's exactly what I did but Position has a problem when the component is located at an index of 0. I created a test program and posted it here: http://forums.sun.com/thread.jspa?threadID=5444569 . If you have any advice camickr (or anyone else), I'd greatly appreciate it. I started capturing all the exceptions to write special cases to track when the component is moved to 0 but there's a ton of possibilities (backspace, cut, delete, etc).

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