Hi,
I'd like to improve the svg output of the composer, specifically:
(1) - put each layers in a separate svg group
(2) - fix #3975 (maybe with an option vectorise fonts yes/no to avoid
breaking things in labelling)
To realize (1) I need to have some kind of action when the rendering of
a layer starts. I'm considering the emission of a signal in
qgsmaprenderer.cpp loop so that the impact on the rest of the code is
minimal. I'll then have to create a custom QPaintDevice (based on
QSvgGenator code) that will insert group tags in the svg when the signal
is emmited.
I'm a bit worried in case of multi-threaded rendering since the layers
are rendered in parallel, can someone give me some insight on this point
? Is the multi-threaded/serial rendering dependent on the QPaintDevice
beeing used ?
For (2) some insight from those who are familiar with the labeling would
save me a lot of time.
Comments on the soundness of the design (or lack of it) are very welcome.
Cheers, and Happy new year to all.
V.
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