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Re: Re: Making a user interface

  • To: mathgroup at smc.vnet.net
  • Subject: [mg99695] Re: [mg99656] Re: Making a user interface
  • From: John Fultz <jfultz at wolfram.com>
  • Date: Mon, 11 May 2009 06:25:55 -0400 (EDT)
  • Reply-to: jfultz at wolfram.com

Of the standard keyboard accessibility that you would typically find in dialog 
box-style interfaces, Mathematica implements only...

* Enter/Escape for default button/cancel (e.g. in CreateDialog)
* Tabbing between InputFields.

Tab key accessibility of buttons and other UI controls is not in the current
feature set.  Probably you could implement such a system using EventHandler, but 
it would take some effort.

Sincerely,
 
John Fultz
jfultz at wolfram.com
User Interface Group
Wolfram Research, Inc.


On Sun, 10 May 2009 05:17:33 -0400 (EDT), ADL wrote:
> I tested the code below, presented by John Fultz, but I have noticed
> that, by using Tab, it is only possible to cycle through the
> InputFields, but never set focus on the buttons. I did not find a
> Panel option about this, either.
> Do you know if is it possible to explicitely set the tab-accessible
> components and also specify the "tabbing" order?
>
> Thanks
>
> ADL
>
> On May 9, 9:20 am, John Fultz <jfu... at wolfram.com> wrote:
>> Yes, this is a bug (in fact, one which merited some internal discussion
>> a=
> mong
>> the UI development group a couple of months ago).  And, as is typical w=
> ith these
>> kinds of bugs, it has nothing to do with just running under Windows XP,
>> o=
> r even
>> Windows in general.  It does have an easy workaround, though.  Just w=
> rap Deploy
>> around the Panel.  i.e.,
>>
>> Module[{Entry1 = "", Entry2 = "", Answer = ""},
>> Deploy[Panel[
>> Column[{Row[{"Entry 1: ",
>> InputField[Dynamic[Entry1], String,
>> Background -> LightCyan]}],
>> Row[{"Entry 2: ",
>> InputField[Dynamic[Entry2], String,
>> Background -> LightYellow]}],
>> Dynamic@Row[{"Answer: ", Answer}],
>> Row[{Button["Clear", Entry1 = ""; Entry2 = ""; Answer ==
> ""],
>> Button["Calculate",
>> Answer = ToExpression[Entry1] ToExpression[Entry2]]}=
> ]}],
>> Style["Enter and Calculate_Multiplication", 16, Bold, Italic]]]];
>> Framed[%, Background -> LightOrange]
>>
> ..
>
>> Sincerely,
>>
>> John Fultz
>> jfu... at wolfram.com
>> User Interface Group
>> Wolfram Research, Inc.





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