http://issues.apache.org/cayenne/browse/CAY-502
Here's a first-pass at trying to implement a selectAll/deselectAll button, borrowed from the Generate Code panel. Unfortunately, I'm being defeated by Swing. I can't seem to get the actual panel containing the checkbox and label to show up. Anyone see what I'm doing wrong in the attached patch file? Seemed pretty straight-forward, but I'm obviously missing something.
