How to get the size of a Label?

[ph09]

Hey,

I want to get the Size of a label, but I always get 0.
Here is the Code:

Label label= new Label(".......");
rootLabel.setStyleName("gwt-Label-1");
int width = label.getOffsetWidth();

Is there anything wrong? I guess not...
With an Absolute Panel "getOffsetWidth()" works.

greets

[Jeff Larsen]

the label needs to be attached before you're able to get the size. 

[ph09]

Ok, but when I attached the Label to the AbsolutePanel and do
"getOffsetWidth()", I get for Example
a width of 700px for the AbsolutePanel and a width of 698px for the
Label. Certainly the label is less smaller.
Is there any reason for? I want to place the Label at the center of
the Panel, but therefore I have to know the size of the Label.