tdf#146756 pie chart2 import: improve response to bestFit failure

Fixes a 7.2 regression from
commit b0068342398786ca50304260434a18880dddf74d
author Tünde Tóth on Wed Dec 16 18:26:26 2020 +0100
tdf#138777 pie chart: improve long data label width

When a label fails to bestFit inside the pie slice,
it will be placed outside of the pie of course.
However, we can't assume that there is any chart space
available to place a label outside.

Tünde got that part right. He limited the space available
based on the chart edge. But there are some optimizations
that can improve that.

1.) Every little bit can help. As we go away from the
X-axis, we gain a little bit of space, so use that...
2.) Don't assume that the pie chart is in the middle of the page.
3.) Use a consistent algorithm for all degrees - much simpler.

make CppunitTest_chart2_import CPPUNIT_TEST_NAME=testTdf146756

Change-Id: I0d8528bc227768f91237cda6b74bf9365820bfa7
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/162704
Tested-by: Jenkins
Reviewed-by: Justin Luth <jluth@mail.com>
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

0 files changed, 0 insertions, 0 deletions