Re: Drawing dirty rectangles with expose_window: row->clip = fr

[Eli Zaretskii]

> Date: Mon, 01 Apr 2019 18:55:46 -0700
> From: Keith David Bershatsky <address@hidden>
> 
> Even though ns_clip_to_rect returns TRUE, "row->clip = fr;" in expose_window 
> can sometimes prevent glyphs from being drawn within the rectangle that is 
> passed as an argument of ns_clip_to_rect.  This has the effect of permitting 
> fake cursors to be drawn, but then glyphs cannot be drawn on top of 
> hollow/box fake cursors.
> 
> How can I reconcile a false_positive with ns_clip_to_rect?

Is the fake cursor entirely inside the rectangle described by 'fr', or
is it or some of its parts outside?

> Or, perhaps "row->clip = fr;" in expose_window needs to be adjusted to permit 
> the drawing of glyphs?

It already is, AFAIU.  Barring bugs, that is.