oox smartart: snake algo: make sure child shape height stays within parent

1) When applying double outside spacing, introduced with commit
0a29c928afa74123bca05dc089c751603d368467 (oox smartart, picture strip:
fix lack of spacing around the picture list, 2019-02-26), make sure that
is only applied in the direction of a signle row: i.e. the bugdoc case
is left/right outer spacing, but no top/bottom spacing.

2) If a child shape has an aspect ratio request, make sure that it only
decreases what would be allocated by default, so the children never
leave the parent's rectangle.

3) Fix a mis-match between the first and second row, the unexpected
small left padding in the second row was because code assumed that all
child shapes have the same width; which is not true, when widths come
from constraints.

With this in place, we finally do a good rendering of the bugdoc, and
child shapes are always within the bounds of the background.

Change-Id: Ia2606dcd945402f7dfe17c6e2f261bfd98667022
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/103680
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins

0 files changed, 0 insertions, 0 deletions