Hi Harbs
please take a look when you have time. I didn't find any other way to deal
with this issue.
For now, if not doing that, you can layout right when using % measures.
Maybe I'm missing something there
If you get a better way, that will be a great improvement so far, since I
think Royale has still things to solve regarding layouts easeness
for user consume.
For now, just let you know I just check for width/height, and if not get
sizing just call requestAnimationFrame until the check is right.
thanks
El jue., 4 jun. 2020 a las 17:10, Harbs (<harbs.li...@gmail.com>) escribió:
> I wonder how this effects performance.
>
> I’d need to look at exactly the flow (which I don’t have time for now),
> but one thing to keep in mind is that if reads and writes are not carefully
> plan, it could cause forced layouts which is a performance killer.
>
> Not sure if this effects what you did or not, but definitely something to
> keep in mind.
>
> HTH,
> Harbs
>
> > On Jun 4, 2020, at 5:49 PM, Carlos Rovira <carlosrov...@apache.org>
> wrote:
> >
> > Hi,
> >
> > as part of the Jewel Tile Layout improvement, I want to let you know
> about
> > an important addition.
> >
> > until now I had very hard time dealing with width/height of a component
> in
> > layout classes when the width or height are a percentage
> > or not set.
> >
> > Since that depends on other containers, I found while working on Jewel
> > DataGrid that I need to make "requestAnimationFrame" calls
> > until I get the proper measurements.
> >
> > So I set up a "waitForSize" public property that is available in all
> Jewel
> > layouts, since all comes from StyledLayoutBase.
> > This is false by default, so you need to put to true to use this
> feature. I
> > didn't other way to get this measures, I think maybe this could have
> > some performance hit, for that reason, I let users choose. If you know
> > something better, let me know :)
> >
> > If you check that code you'll find that performanceLayout is now using
> > "checkHostSize()" (if waitForSize is true).The code is this:
> >
> > /**
> > * We call requestAnimationFrame until we get width and height
> > */
> > COMPILE::JS
> > protected function checkHostSize():void {
> > if(sizeInitialized) return;
> > if((host.width == 0 && !isNaN(host.percentWidth)) ||
> > (host.height == 0 && !isNaN(host.percentHeight)))
> > {
> > requestAnimationFrame(checkHostSize);
> > } else
> > {
> > sizeInitialized = true;
> > executeLayout();
> > }
> > }
> >
> > when we get the size, we continue as usual.
> > As I said before if you left "waitForSize" to false (default), it will
> work
> > as always.
> >
> > For example, new tile horizontal layout is using it in TDJ:
> >
> > <j:Group className="wrapper" width="100%">
> > <j:beads>
> > <j:TileHorizontalLayout localId="tl" waitForSize="true"/>
> > </j:beads>
> >
> > Any comment are welcome
> >
> > Thanks
> >
> > --
> > Carlos Rovira
> > http://about.me/carlosrovira
>
>
--
Carlos Rovira
http://about.me/carlosrovira
