[Cuis-dev] An instance of Morph couldn't be moved by the halo's handle

[Juan Vuletich]

Hi Folks,

On 8/16/2023 5:36 PM, Szabolcs Komáromi via Cuis-dev wrote:
> My question is more hypothetical than practical. Is it a good idea to 
> have a kind of morph that doesn't interact uniformly with other kinds 
> of morphs? But maybe this is an irrelevant question and I should 
> perceive the Morph class as an abstract class.
>
> Regards,
> Szabolcs

Morph is not abstract. It can be used, although it is most useful if 
subclassed.

A Morph that can not be moved is a bit like (in the real world) a part 
that is glued or soldered to another. We see those all the time. Not all 
(real world) objects are equally easy to decompose into parts. I think 
it is a good flexibility to give to users (including developers).

WRT Morph in Layouts, yes, you found a bug. It is great to have more 
fresh eyes exploring the system. Some of the things that surprise you 
may lead to new insights on the system, but some can also be just bugs. 
I've just pushed an update to give an error if Morphs, that are not 
PlacedMorphs, are added to a Layout or a Text.

Thanks for reporting!

Cheers,

> On Wed, Aug 16, 2023, at 22:07, Hilaire Fernandes via Cuis-dev wrote:
>> For GUI (then layout), you don't want to use Morph because it does not
>> have location. The idea is to remove the unnecessary attributes
>>
>> Le 16/08/2023 à 20:25, Szabolcs Komáromi a écrit :
>> > For me Morph feels a little bit broken. Too simplified and feels like
>> > a special case. (But I certainly doesn't have a comprehensive overview
>> > of Morphic in Cuis.) E.g.: If I try to add a Morph instance inside a
>> > LayoutMorph I get an MNU because Morph doesn't implement layoutSpec.
>> > It brakes the uniformity of morphs.
>> >
>> >> a := Morph new.
>> >> b := LayoutMorph newColumn.
>> >> b addMorph: a.
>> >> b openInWorld
>> >
>> > But I understand what was the rationale behind it.
>> >
>> > Regards,
>> > Szabolcs
>>
>> -- 
>> GNU Dr. Geo
>> http://drgeo.eu
>> http://blog.drgeo.eu
>>
>> -- 
>> Cuis-dev mailing list
>> Cuis-dev at lists.cuis.st <mailto:Cuis-dev at lists.cuis.st>
>> https://lists.cuis.st/mailman/listinfo/cuis-dev
>>
>


-- 
Juan Vuletich
cuis.st
github.com/jvuletich
researchgate.net/profile/Juan-Vuletich
independent.academia.edu/JuanVuletich
patents.justia.com/inventor/juan-manuel-vuletich
linkedin.com/in/juan-vuletich-75611b3
twitter.com/JuanVuletich

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.cuis.st/mailman/archives/cuis-dev/attachments/20230817/58ae0678/attachment.htm>