[layouts] layout change overwrites properties that need not change

[Gerry Boland]

Try this example (courtesy of nik90 on Freenode):

http://paste.ubuntu.com/6338400/

When you resize window to be wider than 50GU, the buttons become invisible. This is a workaround:
http://pastebin.ubuntu.com/6338432/
but it's not a good one.

The height & width properties of the Buttons are not being preserved on layout change.

[Nekhelesh Ramananthan (nik90)]

Thanks Gerry for reporting this bug. I (nik90) at first thought that I was perhaps doing something wrong. But it turns out that the button sizes are not preserved as mentioned above. If the Layouts requires the explicit setting of size and position of an item, it should be mentioned more clearly in the docs. Otherwise it is rather puzzling why objects just disappear when switching to a new layout.

[Zsombor Egri (zsombi)]

Items laid out in the ItemLayout are anchor.filled to the ItemLayout itself. Remember when we discussed about this when reviewing the Layouts. So, ItemLayout must specify a size. WAD - works as designed.

[Zsombor Egri (zsombi)]

We can have a property in ItemLayout which could drive the sizing of the hosted element. Hence marked as wish list.