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This is an update on a proposed Python GUI abstraction. Updated code is
at ftp.interet.com in directory pub/python. After writing some programs,
I found it necessary to make some changes in the design.
Ed Miller (ed@infoseek.com) wrote to suggest using setattr/getattr,
and after some more experience I agree. It is just too annoying to generate
events for each change. So the current design uses __setattr__ followed
by a dictionary lookup to trap all changes to variables which require
notification to the underlying native GUI. This is used for changes to
titles, visibility, enable/disable of menu items, etc. Size changes
(currently) still require the programmer to generate a size event.
So a change in title would look like this:
window.title = "New title"
with no further action required. I believe this is better that methods
for everything as in:
window.ChangeTitle("New title")
because the instance variable "window.title" still exists and you can write
the_title = window.title
with no need of a "getattr" or a "get" method.
I also added a few more widgets, namely menus, labels and messages. I also
changed the name of the second included file and a number of variable
names to make them less confusing and more consistent, and (well) prettier.
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