tdf#150717 sw RDF metadata: add custom color bookmark boundary marks

Bookmark boundary marks applied a single color for all bookmarks
with metadata. For visualization of metadata categories e.g.
for quick verification of automatic annotation, add RDF-based
custom color bookmark boundary marks, using LO_EXT_SHADING
feature added by commit a8a9b4f4635bff3f1b7ec63b62f661bc15196cd6
"tdf#142448 sw offapi: add custom color metadata field shading".

Show all colors of overlapping or neighboring bookmarks,
when there are multiple boundary marks at the same
character position, by painting all custom color bookmark
boundary marks of the same character position.

See also commit 4ce8120f1e53f7b81e653b01d141643013bc69ab
"tdf#45589 sw: create and paint text portions for bookmarks".

Change-Id: I845dadcf2f888493c43fcf48bc34af1c4cf340c5
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/139110
Tested-by: Jenkins
Reviewed-by: László Németh <nemeth@numbertext.org>

0 files changed, 0 insertions, 0 deletions