[Coco] Full GUI DriveWire 4 beta

[Aaron Wolfe]

On Wed, Dec 29, 2010 at 6:32 PM, Steven Hirsch <snhirsch at gmail.com> wrote:
> On Wed, 29 Dec 2010, Aaron Wolfe wrote:
>
>>>> Thinking about the midi stuff.. there is no "initial config read", the
>>>> items are read from the server every time you open the configuration
>>>> dialog.  this is because they can be changed at any time from the coco
>>>> at the os9 prompt, or even from another client.  I gave up trying to
>>>> maintain any sort of consistent state and just read everything as
>>>> needed, every time, everywhere.  There is no persistent connection
>>>> between client and server either, each action you do that needs to
>>>> know something about or tell something to the server is a new session.
>>>> This makes a couple things odd, but overall I think it's the best I
>>>> can do.  So... my point is that the client doesn't know if MIDI is on
>>>> when you pull down that menu, and it won't know if you've turned it
>>>> off since the last time you pulled down the menu.  I'll have to just
>>>> make it fail as politely as possible I guess.
>>>
>>> No problem.  When the server reports back that midi is suppressed, maybe
>>> you
>>> can gray out anything underneath the pulldown?  Then, if it appears
>>> again,
>>> you just cause the pulldown to fill in.
>>
>> The problem would be that unless you try to do something with MIDI,
>> the client would never know whether it was turned on or off.  The
>> client does not maintain any information about the state of the
>> server.
>
> Understood.  But can't you capture the event when the user pulls down the
> MIDI menu and poll to see if MIDI is disabled?

I could, but a user on the CoCo or another client could still enable
or disable it after I draw the menu but before you click on an item.
Changing how a menu is displayed on the screen for several moments due
to the setting at one moment is still letting the client maintain
server state, and I dont want do that.

I'll just make the commands fail in a normal way, essentially the same
thing that happens if you try to do other things that don't work.  I
don't see people turning MIDI on and off very often, and I think its
even less likely that someone who has turned it off will spend much
time trying to use it.

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