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Page Title:
Implement basic support for SVG graphics using wxSVG by nohal · Pull Request #531 · OpenCPN/OpenCPN · GitHub
Page Description:
on Windows, Linux and OS X
Replaces #320
On all platforms, SVG support can be disabled by -DOCPN_USE_SVG=OFF cmake parameter
On Linux, we try to use GTK2 and if it is not found, look for GTK3. GTK3 dependency can be forced by -DOCPN_FORCE_GTK3=ON (Untested as I currently don't have a Fedora machine at hand)
Inclusion of wxSVG adds dependency on Expat and Cairo (and their dependencies like Pixman, LibPNG, Iconv, Fontconfig and LibXML2)
Prerequisities:
OS X:
brew install cairo
Linux:
apt-get install libexpat1-dev libcairo2-dev
or equivalent
Windows:
All the needed files included in the dependencies bundle (As part of the process the openssl dependency was dropped and cURL included to 9.46 + using the same ZLIB as the GTK libraries), the updated bundle is available at https://sourceforge.net/projects/opencpnplugins/files/opencpn_packaging_data/OpenCPN_buildwin-svg.7z/download
The vector graphics bundled into the package are placed in data/svg/<STYLESYSNAME>/
Add 2 testing toolbar icons (cairo does not like SVG files optimized with svgo and scour, but we should definitely investigate further as they save 80-90% of the size in comparison with SVGs saved by Inkscape)
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