Hi all,
there have been some discussions in German in private emails before the
implementations. That was a wrong behavior and should not happen again,
please excuse this.
I'll translate and summarize here some of those discussions:
CSS knows a large variety of selectors in a rule, read
http://www.w3.org/TR/CSS21/selector.html. We discussed to which extend
they should be supported. Because currently Inkscape supports CSS only
rudimentary, and there are no special requests in Bugzilla, and other
areas of CSS (e.g. filter and animation) are more important, the
decision has been, to support only those selectors, which can be
implemented straightforward within the existing design. Find details
about current implementation in the comments in
main/svgio/source/svgreader/svgstylenode.cxx.
There exists currently no code to load external data which are
referenced in a svg-image. Therefore support for "@import" rule has been
postponed.
In contrast to browsers, the environment, in which svg-images are used
in Apache OpenOffice, has no user-defined style sheets. In addition
'@import' rule is not supported. So the author's rule is always taken
and authors can directly determine the order of styles. Therefore the
'!important' part of a description is ignored for now.
A CSS-style is stored in a SvgStyleAttributes-instance. Each svg-node
gets a linked list of pointers to styles, ordered according the priority
specified by "cascading". The list is build once using method
fillCssStyleVector. (I hope, I've got it right.)
Kind regards
Regina
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