This looks much better on print-outs. The remaining event icons
still need to be converted to SVG.
SVG created by Lubomir I. Ivanov <neolit123@gmail.com> and
made compatible with the Qt SVG renderer by BS.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
For better scalability, we might replace the dive event icons
by SVGs. Since rendering SVGs is potentially very slow, cache
the pixmaps when the scene is generated.
Note: this does not yet do any SVG rendering, only the caching
of pixmaps.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>