custom openPanel an browser

FROM : Richard Humiston
DATE : Wed Nov 24 15:07:52 2004

I would like to have an openPanel that has the following features /
behavior.

1 A browser at the top to select files, and a section below with a
"list", and add and  delete buttons.

2 I want to be able to select a file in the browser, and click the add
button, which would add it to the list.  The delete button would remove
the file from the list.

3 When the openPanel is dismissed it would return the list of files, in
an Array.

I am using Jaguar 10.2.8.  I can't seem to find a way to achieve this
without writing my own panel.  This would also require a customized
browser. This is the route I have chosen to go at present.  So my
problem is the following:

I am trying to write code that will let an NSBrowser duplicate the
browser behavior that is observed in an openPanel or savePanel...ie
data is organized as in the finder.  I have looked at the various code
samples out there including the simpleBrowser sample from Apple.  None
of them filters or organizes the data to achieve the result that I am
looking for.  Does anybody have any suggestions or strategy on how to
achieve the desired result?  Or (hopefully) is there a way to do this
without having to write a custom panel and browser?

Any help would be appreciated.

Rich