Proposal: Avoiding nested views with a merge tag

[Daniel Zwolenski]

Just curious, is there really any significant performance hit to the extra
Node, even on a limited device?

I was under the impression that we had heaps of Nodes within Nodes all over
the place (e.g. Controls/Skins) and this wasn't seen as something to be
avoided. An extra VBox would seem quite light to me and this merging idea
seems a little complex by comparison (e.g. what happens to CSS styles
applied at the root level)?

I'm not overly fussed though, just interested in knowing more about the
performance costs.



On Tue, Dec 18, 2012 at 7:01 AM, Yennick Trevels
<yennick.trevels at gmail.com>wrote:

> @Werner An XML document can have only one root node, so that's indeed the
> problem :)
> @Knut,Tom Why not implement it "the android way" (see article I linked in
> my first post). Then the fxml processor can just skip the "merge" tag and
> add its children to the parent; and you can still use the view multiple
> times just like any other custom view.
>
>
>
> On Mon, Dec 17, 2012 at 8:03 PM, Tom Schindl <tom.schindl at bestsolution.at
> >wrote:
>
> > Yes that would be an idea, the problem is however is that this syntax
> only
> > allows to "merge" in 1 subfxml, unless we'd allow to reference multiple
> > fxmls there separated through e.g. ",".
> >
> > Tom
> >
> > Von meinem iPhone gesendet
> >
> > Am 17.12.2012 um 19:57 schrieb Knut Arne Vedaa <
> > knut.arne.vedaa at broadpark.no>:
> >
> > > Wild suggestion:
> > >
> > > host.fxml:
> > >
> > > <VBox fx:include="morecontrols.fxml">
> > > <TextField/>
> > > <ComboBox/>
> > > </VBox>
> > >
> > > morecontrols.fxml:
> > >
> > > <fx:root type="VBox">
> > >  <Label/>
> > > </fx:root>
> > >
> > > I.e. a kind of "mixin" or "partial nodes" syntax. Parser should ensure
> > that the root type (or "self type") of morecontrols.fxml is (in this
> case)
> > VBox.
> > >
> > > So what you end up with is:
> > >
> > > <VBox>
> > > <TextField/>
> > > <ComboBox/>
> > > <Label/>
> > > </VBox>
> > >
> > >
> > > Knut Arne Vedaa
> >
>