[cairo-bugs] [Bug 5816] Image surfaces do not start out blank by default

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https://bugs.freedesktop.org/show_bug.cgi?id=5816          
     




------- Additional Comments From cinamod at hotmail.com  2006-02-06 06:18 -------
I'm weary that the solution I'll be told (and the workaround already posted in
that librsvg bug) is "use CAIRO_OPERATOR_CLEAR and cairo_paint(). But I'd like
to preempt that if possible. I think that the metaphor cairo should follow is as
follows:

An artist asks her friend for a sheet of paper to draw on. At this point, the
friend can do one of two things:

1) Give the artist back a clean sheet of paper (zero the pixels by default)
2) Give the artist back a piece of paper with complete with scribbles done by
her 2-year old daughter, and a bottle of white out (CAIRO_OPERATOR_CLEAR,
cairo_paint()). Caveat emptor.

I think if this is an appropriate analogy, #1 is clearly correct and #2 would
(deservedly) get a blank stare from the artist.          
     
     
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