[squeak-dev] Re: ProportionalLayout not so suitable for Drag-and-Drop?

Stephan Eggermont stephan at stack.nl
Fri Jul 10 13:45:25 UTC 2015

On 10-07-15 14:34, marcel.taeumel wrote:
> Yes, proportional layouts are difficult to update when dropping an object
> into the hierarchy. If you take a look at how proportional splitters work,
> you can see that they tweak the #offset property of the adjacent layout
> frames.

Thanks, I'll take a look.

> There is only the TableLayout left, which fits better for adding morphs into
> the respective container on-the-fly.
> You might want to take a look at the layout policy that I use in Vivide:
> https://github.com/hpi-swa/vivide/tree/master/repository/Vivide.package/ViConstraintLayout.class
> (It also needs #boundsInOwner: from
> https://github.com/hpi-swa/vivide/tree/master/repository/Vivide.package/Morph.extension/instance
> but should work in Squeak 4.6 without Vivide.)

That looks like a more workable layoutpolicy. Thanks.


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