Related: cool#6911 opt to skip SdrObject::GetViewContent() when possible

as seen in: https://user-images.githubusercontent.com/122848/253732636-3dfeddad-f146-4268-bde5-85788b72d539.svg

SdrPageView::DrawLayer takes ~11% of the time when scrolling with
many comments in calc, but none of these comments actually get drawn,
all this effort is to find that they are not to be drawn.

optimize ViewContactOfPageHierarchy impl over its parent impl to skip
SdrObject::GetViewContent(), etc if the SdrObject isn't shown on the
target layer.

ViewObjectContactOfSdrobject::getPrimitive2DSequenceHierarchy does the
same check, but after a set of allocations which is expensive in the
case of SdrCaptions in a calc internal layer where there can be
thousands of such objects.

Change-Id: Iad86c77e8fa71ec90f54ce06d5a27c0380fb03ab
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/155269
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>

0 files changed, 0 insertions, 0 deletions