Hi,
I am arithmetically challenged, but I shall soldier-on. I want to work
with Actors and Groups with the default 'anchor' being in the center.
For example, I have a 64x64 Actor (C) and a 128x128 Group (P) and
another 512x512 group (P2), so:
P2
\_P
\_C
I want the middle of C to be in the middle of P and the middle of P to
be in the middle of P2.
Is there some way to magically matrix the works so that a normal
P.add(C) will also jiggle the positions and anchors etc. to make this
happen?
I'd like (0,0) to be in the 'middle' and negative goes left/down,
positive right/up. Also, future animation (alphas and co.) should 'just
work' based on same.
I am aiming towards a small animation tool and I don't want to have to
keep working out offsets for centering.
Matrixes (matrices?) are bewilderingly new to me. I have mucked with
them in PyCairo before (see my Things! project linked in sig) but all I
am left with is the confusing memory of the wooshing sounds made flying
overhead. :)
I do recall that I could arrange a central function that would apply a
matrix to the entire context so that everything was drawn properly.
Perhaps there's something similar in Clutter.
\d
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https://savannah.nongnu.org/projects/things/
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