With JHotDraw 5.3, all sample Applications
(plus the one I am developing) which do not use the MDI interface
but rather the single-document based one (i.e. DrawApplication-derived)
do not let me select any of the tool buttons - they stay greyed out
all the time.
The tool buttons do work as expected with the MDI_DrawApplication.
I could not find any relevant information in the history but since
it works with the MDI version I suppose there has been a slight
API change I (and the maintainers of the relevant example apps)
have overseen and would appreciate any help to get things
working as they are intended to.