Re: [Pharo-users] Spec layout

[stepharo]

But why from the class side.

buttons
    ^ buttons

returns an empty collection

and

rebuildWidget
    self widgets removeAll.
    self createWidgets.
    self needFullRebuild: false.
    self buildWithSpecLayout: self dynamicLayout.
    self alignButtons



Le 18/5/16 à 11:31, Marion Noirbent a écrit :

I was trying to use it but i have still the problem to call the instance method from the class side, so i call the buildWithSpecLayout: in the method to add buttons in the collection, it seems work but i have an "MessageNotUnderstood" RadioButton>>layout:

Le 18/05/2016 09:20, stepharo a écrit :

marion the solution is what peter proposes.

Stef


Le 18/5/16 à 11:14, Marion Noirbent a écrit :

In fact i was trying to modify RadioButtonGroup to turn it into a
widget, #buttons is not a widget but its collection of widget.

May you have confused RadioButtonGroup with the MenuModel /
MenuGroupModel / MenuItemModel which are widgets. I take inspiration
from them and I would got the same kind of behaviour.

Le 17/05/2016 21:11, stepharo a écrit :

Thanks Johan


We looked at

RadioButtonGroupExample

but you see we cannot have a RadioButtonGroupPresenter having 2, 3 or 4

radioButton.

Stef


Le 17/5/16 à 18:52, Johan Fabry a écrit :

Hi Marion,

the class side message of defaultSpec is generally meant to be used if you use a fixed number of widgets, so you can put the reference to the name of each widget there (in cour case #buttons). For variable number

of widgets you should have a look at the dynamic features of Spec.

That being said, It looks like what you really want to use is a Radio
Button Group. Have a look at RadioButtonGroupExample.

HTH

--
Does this mail seem too brief? Sorry for that, I don’t mean to be
rude! Please see http://emailcharter.org .

Johan Fabry   -   http://pleiad.cl/~jfabry
PLEIAD and RyCh labs  -  Computer Science Department (DCC)  -
University of Chile

On May 17, 2016, at 13:48, Marion Noirbent
<ms.noirb...@etudiant.univ-lille1.fr> wrote:

Hi,
I'm trying to create a widget whith Spec, managing a collection of
RadioButton. But I have a problem with defaultSpec (the accessor of
the collection is the methods "buttons") :

If i put defaultSpec on class side, i can't acces the collection of
the instance. (the following code iterate on the string)

defaultSpec
    <spec: #default>
    ^ SpecLayout composed
        newColumn: [ :column | #buttons do: [ :item | column add:
item ] ];
        yourself

If i put it on instance side, the lookup don't find it (in the book
Building UI with Spec, it said the lookup begin by the instance side
and it allow to have specific UI, in part about layout)

defaultSpec
    <spec: #default>
    ^ SpecLayout composed

newColumn: [ :column | self buttons do: [ :item | column add:

item ] ];
        yourself

Any idea ?

Marion Noirbent,