Layout/Img setWidth() with percentage doesn't work

[fhd]

Hi,

I'm using SmartGWT 1.3, and am unable to create a Layout (or Img, for that matter) whose width is set as a percentage.

i.e. the following works:

Layout l = new VLayout();
l.setWidth("30px");

While the following doesn't:

Layout l = new Layout();
l.setWidth("10%");

The width is always 0 pixels when I use a percentage.

Here is an EntryPoint's onModuleLoad() method reproducing the problem:

Layout l = new VLayout();
l.setWidth("10%");
      
Layout main = new HLayout();
main.setWidth100();
main.setHeight100();
main.addMember(new Button("I'm on the left"));
main.addMember(new Button("I'm on the right"));

main.draw();

I've tried to use a Img object with a transparent GIF instead of the empty Layout, but I got the same behaviour.

Any hints on how I can get that working?