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Date: Tue, 18 Jun 2013 12:17:51 +0200 (CEST)
From: Roland Lutz <rlutz AT hedmen DOT org>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] gschem text measure
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Hi,

In my opinion, the way text measurements are handled in gEDA is somewhat 
broken.  The bounding box of an object is usually retrieved via 
world_get_single_object_bounds.  This, however, depends on the TOPLEVEL 
context because libgeda by itself is unable to tell the bounding box of a 
text object, effectively asking the GUI to do so.  So there is data stored 
in the OBJECT struct which actually belongs to a TOPLEVEL object, making 
it impossible to share objects between contexts.

This is a problem in the FLAG_TEXT_OUTLINE rendering mode where the 
object's bounding box should be drawn but there is no TOPLEVEL context 
available in the renderer, so the objects' cached (and maybe invalid) 
bounding boxes are drawn instead.

One possible solution to address this would be to add a TOPLEVEL reference 
to the renderer.

Roland