How to create scrollable JPopupMenu

Question

I am trying to create a JPopupMenu that has a scrollbar so that I can display a large number of elements.

There are several implementations on the Internet that have problems:

• http://forums.sun.com/thread.jspa?threadID=5128630

  It looks correct (except for problems with delimiters), but if you scroll it, the highlight and selection will no longer work.

• http://www.beginner-java-tutorial.com/scrollable-jpopupmenu.html

  Not like JPopupMenu (no background or L & F highlighting), but it works, except for the fact that you cannot put JMenuItems in it - you should use some hacked button instead.

Can someone point me to a working solution before I try to debug this or write it myself?

Answer 1

My suggestion would be to not use the popup menu if it is large.

Most current OS user recommendations would also suggest this. A menu that will be large will become a nightmare for the user to find something if necessary to scroll, right?

How to enable a popup / dialog with a filtered list?

(e.g. CTRL + O popup filter tree in eclipse or CTRL + Space Content Assist list in eclipse)

Answer 2

I agree with John Gardner, you should use dialogue. We used swingx filter components, they are very good for filtering ...