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Re: Dynamic GUI problems

  • To: mathgroup at smc.vnet.net
  • Subject: [mg89442] Re: Dynamic GUI problems
  • From: David Bailey <dave at Remove_Thisdbailey.co.uk>
  • Date: Mon, 9 Jun 2008 06:20:39 -0400 (EDT)
  • References: <g2dbji$9ks$1@smc.vnet.net> <g2fuco$2ha$1@smc.vnet.net> <g2ij36$ror$1@smc.vnet.net>

Szabolcs Horv=E1t wrote:
> David Bailey wrote:
>> zac wrote:
>>> Dear Group,
>>>
>>> building a GUI is highly non-intuitive for me, although I almost felt
>>> I understand the behaviour of dynamic interactivity.
>>>
>>> I. Problem - Master swich does not control semi-independent sub-
>>> switches
>>> This is the classic "set all/none switch" situation, with allowing th=
e
>>> sub-switches to be set by the user individually. Switching the
>>> checkbox works, but hitting the buttons won't update checkboxes.
>>>
>>> master = False;
>>> def = {False, True};
>>>
>>> {Button["All", master = All], Button["None", master = None]}
>>> {Dynamic[master], Dynamic[sub1], Dynamic[sub2]}
>>> {sub1, sub2} =
>>>   Table[DynamicModule[{i = i},
>>>     Switch[master, All, True, None, False, _, def[[i]]]], {i, 2}];
>>> {Checkbox[Dynamic[sub1]], Checkbox[Dynamic[sub2]]}
>>>
>>>
>>> II. Problem - Checkbox in label of TabView does not work
>>>
>>> TabView[{
>>>   Checkbox[Dynamic[x]] -> Dynamic[x],
>>>   "..." -> ""
>>>   }]
>>>
>>>
>>> Any ideas how to solve them?
>>>
>>> Istvan Zachar
>>>
>> The first problem is that the expressions for sub1 and sub2 do not
>> contain the Dynamic wrapper. The easiest way is to code the two separa=
tely:
>>
>> master = False;
>> def = {False, True};
>>
>> {Button["All", master = All], Button["None", master = None]}
>> {Dynamic[master], Dynamic[sub1], Dynamic[sub2]}
>> sub1 = Dynamic[Switch[master, All, True, None, False, _, def[[1]]]];
>> sub2 = Dynamic[Switch[master, All, True, None, False, _, def[[2]]]];
>>
>> {Checkbox[Dynamic[sub1]], Checkbox[Dynamic[sub2]]}
>>
>> In the second problem, you are trying to put a checkbox into the label=

>> of a tabview. This would be a very unusual thing to do in a GUI - you
>> really need a name or an image there - and probably has never been
>> designed to work.
>>
>
> Google Groups ate my reply to this question, and I have not saved it ..=


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