A screen shot and a question

[Aaron J. Seigo]

On Tuesday 16 September 2008, Marco Martin wrote:
> On Tuesday 16 September 2008, Dong Tiger wrote:
> > Hi all,
> >
> > I tried to make Google Gadgets(GG in short) to work on plasma panel. Here
> > is a screen shot of a vertical panel with 3 GGs. But there are still
> > issues remain:
> >
> > 1. It doesn't work on horizontal panel. When added to horizontal panel,
> > the applet gets a 'invalid' constraintsEvent with width constaint of 9 (
> > In my case).

it's not invalid; it's an or'd value, in this case SizeConstraint | 
FormFactorConstraint

> > So the embedded GG just doesn't show up at all.
>
> strange, you are getting a SizeConstraint combined with a
> FormFactorConstraint,

not strange: it's added to a panel, so it changes size and form factor.

> > 2. I can't adjust the size of an applet when it's on panel. I am using
> > Plasma::ConstrainedSquare for these applets.
>
> constrainedSquare means that the applet for instance in an horizontal panel
> can have a width at max equal to the panel height, but can be automatically
> resized by the panel layout. in general you can't never ever call resize()
> in the constraintevent when you are in the panel (or in a layout in
> general) because it would collide with the automatic layout resize, thus
> causing an infinite loop of resizing and 100%cpu usage...
>
> to set the size in a panel you should make it IgnoreAspectRatio and then
> set minimum and maximum sizes, but this is quite ugly and error prone when
> the panel switches run-time from vertical to horizontal.

can't you just reimplement sizeHint and return different values based on 
formFactor()?

-- 
Aaron J. Seigo
humru othro a kohnu se
GPG Fingerprint: 8B8B 2209 0C6F 7C47 B1EA  EE75 D6B7 2EB1 A7F1 DB43

KDE core developer sponsored by Trolltech

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