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CSS font [message #531748]

Thu, 06 May 2010 02:22

lsq

Messages: 40
Registered: July 2009

Member

I am implementing a widget whose size depends on the font it is using. I use themming from a CSS file where default font are defined. I suppose the widget I am working on will inherit the font type from css which is decided before widget is rendered. However when debuging the I find different values from Graphics.stringExtent(font, string) method, and I am sure that the samet font returned from Control.getFont method and used as the parameter. So I guess this is the problem of the implementation ofGraphics.stringExtent which returns different value when I simply refresh the web page.

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Re: CSS font [message #531750 is a reply to message #531748]

Thu, 06 May 2010 02:30

lsq

Messages: 40
Registered: July 2009

Member

More information, I am using 1.3M6 as the platform and a different value returned when I try to refresh the page and all widgets are re-rendered.

Thanks in advance.

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Re: CSS font [message #531817 is a reply to message #531748]

Thu, 06 May 2010 08:44

Ralf Sternberg

Messages: 1313
Registered: July 2009

Senior Member

Hi,

maybe your observation is related to the way the text size determination
works in RAP. Before text sizes are measured on the client, it uses an
estimated value. This only affects the first session that renders the
string.

Ralf

lsq wrote:
> I am implementing a widget whose size depends on the font it is using. I
> use themming from a CSS file where default font are defined. I suppose
> the widget I am working on will inherit the font type from css which is
> decided before widget is rendered. However when debuging the I find
> different values from Graphics.stringExtent(font, string) method, and I
> am sure that the samet font returned from Control.getFont method and
> used as the parameter. So I guess this is the problem of the
> implementation ofGraphics.stringExtent which returns different value
> when I simply refresh the web page.

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