Yes, it fully works even in our app this way. Thank you. Just to understand it correctly, is this avoiding of using update by getting trachelShape just workaround of a problem with composite shapes, right? Should update on composite shapes work in perfect world, and I could use it without any possible problem, yes?

Jan

abergel wrote

Hi Jan,

Composite shapes could be a nasty beast. This is a part of Roassal for which I am not even sure of which semantics if should have. So, we may end-up in some corner, as you have explained. However, we are luck here: this is a easy problem to solve.

The modification you wish to have, which is changing the label has to be done directly on the trachel shape and _not_ the roassal shape. Consider this slightly modified version of the script:

-=-=-=-=-=-=-=-=-=-=-=-= compo := RTCompositeShape new. compo add: (RTEllipse new size: [ :tupple | tupple third ]; color: Color lightBlue). compo add: (RTEllipse new size: [ :tupple | tupple second ]; color: Color blue). compo add: (RTLabel new text: [ :tupple | tupple first ]; color: Color red). "ADDED LINE to demonstrate it does not keep this layout: " compo vertical.

v := RTView new.

data := {{ 'hello' . 30 . 50 } . { 'World' . 20 . 70} }. v addAll: (compo elementsOn: data).

RTHorizontalLineLayout new alignCenter; on: v elements. v elements @ RTDraggable.

"ADDED LINE where I change labels text:" v elements do: [ :elem | |label| label := elem trachelShape shapes third. label text: 'LABEL'. ].

v

And just to make my email more entertaining, here is the screenshot:

Alexandre

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