QGraphicsAnchorLayout: Update solveExpanding to handle simplified graphs

The previous implementation of solveExpanding would assume that anchors
were either completely expanding (would grow to their sizeAtMaximum) or
non-expanding (would try to remain at their sizeAtPreferred).

What happens however is that with simplification enabled, we may have
anchors that are "partially" expanding. An example is a sequential
anchor that groups together two leaf anchors where only one of them
is expanding.

In this case, the expected size of that group anchor would be the sum
of the max size of the expanding child plus the preferred size of the
non-expanding child.

To handle the above case we added the "expSize" variable. It holds
the expected value at Expanding for each anchor. Based on this, and
the already calculated values of sizeAtMaximum and sizeAtPreferred,
the solver calculates the actual sizeAtExpanding for them.

Signed-off-by: Eduardo M. Fleury <eduardo.fleury@openbossa.org>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@openbossa.org>

0 files changed, 0 insertions, 0 deletions