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getGC [message #437951]

Mon, 14 June 2004 12:08

Tobias Weih

Messages: 8
Registered: July 2009

Junior Member

hi,

I am trying to calculate the width of a String by doing s.th. like:

public int getStringWidth(String str)
{
gc.setFont(f);
Point extent = gc.stringExtent(str);
return extent.x;
}

problem is: where do I get the GC-reference??

thanks tobi

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Re: getGC [message #437961 is a reply to message #437951]

Mon, 14 June 2004 13:08

Grant Gayed

Messages: 2150
Registered: July 2009

Senior Member

Typically you create and dispose one on the Drawable that the text is to be
rendered on, where Drawable is a Control, Device or Image. See GC's
constructor. The only time you wouldn't do this is if a gc is provided to
you (eg.- in a paint callback).

Grant

"Tobias Weih" <tobias.weih@oseg.org> wrote in message
news:cak4gj$sc$1@eclipse.org...
> hi,
>
> I am trying to calculate the width of a String by doing s.th. like:
>
> public int getStringWidth(String str)
> {
> gc.setFont(f);
> Point extent = gc.stringExtent(str);
> return extent.x;
> }
>
> problem is: where do I get the GC-reference??
>
> thanks tobi
>

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Re: getGC [message #437963 is a reply to message #437951]

Mon, 14 June 2004 13:02

Tobias Weih

Messages: 8
Registered: July 2009

Junior Member

sorry, got it.

I am instanciating a new GC.

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Re: getGC [message #437967 is a reply to message #437963]

Mon, 14 June 2004 13:48

Eclipse User

Originally posted by: richkulp.NO.SPAM.us.ibm.com

If it is a new one you created just for this usage, don't forget to
dispose it when done.

--
Thanks, Rich Kulp

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