Putting checkboxes in ListPresenter

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Putting checkboxes in ListPresenter

Steve Quezadas-2
Guys,

I am learning this new "spec" thing. I created a simple Spec "list" object with the following code:
arbitraryList := ListPresenter new.
arbitraryList
   items: #('one' 'two' 'three' 'four. . .');
   title: 'Arbitrary list'.
arbitraryList openWithSpec.

Which creates a simple list like follows: https://steverstuff.s3.amazonaws.com/arbitrary_list.png

Is there any way to make a SpecPresenter object with an arbitrary list of checkboxes? Kind of like a check-off list?

What is the best way of doing this? Should I put checkbox objects in the "items:" selector? Or is there another way to do it?

Please forgive the naive question.
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Re: Putting checkboxes in ListPresenter

Renaud de Villemeur
Hi Steve.

This is not at all a naive question. This is partly showned in the advance part of spec, and as it said: "ListModel can show more than just text, it can also visualize any kind of widget."

Here is how you could do a static list of checkBox:
 In your initializeWidget method, create your checkbox:

item1 := self newCheckBox label: 'label1'; help: 'help1'; yourself.
item2 := self newCheckBox label: 'label2; help: 'help2'; yourself.
item3 := self newCheckBox label: 'label3'; help: 'help3'; yourself.

You can then create and display your list:

projectList := (self instantiate: ListPresenter)
displayBlock: [ :x | x buildWithSpec ];
items: {item1 . item2 . item3};
yourself.


And your defaultSpec can be as simple as:

defaultSpec [
^ SpecLayout composed
add: #projectList;
yourself
]

Hope this helps.
Renaud


Le sam. 24 août 2019 à 14:53, Steve Quezadas <[hidden email]> a écrit :
Guys,

I am learning this new "spec" thing. I created a simple Spec "list" object with the following code:
arbitraryList := ListPresenter new.
arbitraryList
   items: #('one' 'two' 'three' 'four. . .');
   title: 'Arbitrary list'.
arbitraryList openWithSpec.

Which creates a simple list like follows: https://steverstuff.s3.amazonaws.com/arbitrary_list.png

Is there any way to make a SpecPresenter object with an arbitrary list of checkboxes? Kind of like a check-off list?

What is the best way of doing this? Should I put checkbox objects in the "items:" selector? Or is there another way to do it?

Please forgive the naive question.
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Re: Putting checkboxes in ListPresenter

Richard Sargent
Administrator
Thank you, Renaud, for explaining that. I am so glad to see that Pharo has addressed this and made it so simple. I've seen too many UIs that fail on this kind of thing.

Kudos to those people who created this. You nailed it!


On Sat, Aug 24, 2019, 18:31 Renaud de Villemeur <[hidden email]> wrote:
Hi Steve.

This is not at all a naive question. This is partly showned in the advance part of spec, and as it said: "ListModel can show more than just text, it can also visualize any kind of widget."

Here is how you could do a static list of checkBox:
 In your initializeWidget method, create your checkbox:

item1 := self newCheckBox label: 'label1'; help: 'help1'; yourself.
item2 := self newCheckBox label: 'label2; help: 'help2'; yourself.
item3 := self newCheckBox label: 'label3'; help: 'help3'; yourself.

You can then create and display your list:

projectList := (self instantiate: ListPresenter)
displayBlock: [ :x | x buildWithSpec ];
items: {item1 . item2 . item3};
yourself.


And your defaultSpec can be as simple as:

defaultSpec [
^ SpecLayout composed
add: #projectList;
yourself
]

Hope this helps.
Renaud


Le sam. 24 août 2019 à 14:53, Steve Quezadas <[hidden email]> a écrit :
Guys,

I am learning this new "spec" thing. I created a simple Spec "list" object with the following code:
arbitraryList := ListPresenter new.
arbitraryList
   items: #('one' 'two' 'three' 'four. . .');
   title: 'Arbitrary list'.
arbitraryList openWithSpec.

Which creates a simple list like follows: https://steverstuff.s3.amazonaws.com/arbitrary_list.png

Is there any way to make a SpecPresenter object with an arbitrary list of checkboxes? Kind of like a check-off list?

What is the best way of doing this? Should I put checkbox objects in the "items:" selector? Or is there another way to do it?

Please forgive the naive question.