This make the use of legacy canvas on GTK3 a default-off
advanced config. Legacy is substantially broken on GTK3
and is of basically no use at all to general users on this
platform.
If the program starts with legacy canvas in the config,
it is forced into a GAL mode, as otherwise it could happen
that the user is stuck and unable to get into pcbnew to change
the setting.
Fixes: lp:1803156
* https://bugs.launchpad.net/kicad/+bug/1803156
This can be used for "advanced" options which are for developers
to use for feature-flags and other configuration. Run time config
has some advantages over preprocessor defines:
* Can be changed without recompilation
* Sensitive to XDG_CONFIG_DIR, so flipping configs is easy
* Better compiler coverage (less conditionally compiled code means
less chance to break a different configuration). Also better
analysis coverage.
* Type safe config params
* Centralised documentation: it's in doxygen, in one place
No advanced config should be required by a general users. If a general
user does use one of these configs, it's probably because:
* There is a bug and one of these configs is a workaround
* A config in here is generally useful and should be moved into the
relevant application config and given UI.
For now, the config is read-only, and is read from the
"kicad_advanced" config file in the normal config dir.
While not technically allowed, overlapping polygons can be drawn in
pcbnew. Gerber polygons are strictly simple, however, so we need to
fracture prior to exporting to avoid invalid gerbers.
Rather than depend on proper unlocking for each exit, we move the
connectivity lock mutex into an RAII-type configuration that
automatically unlocks on exit.
Layer bit sets get chosen for the layer name, starting with the copper
layers and then the technicals. Additionally, multi-layer pads are
appended with an indicator that additional layer bits are set.
Fixes: lp:
* https://bugs.launchpad.net/kicad/+bug/
The fracture() call may result in zero polygons remaining, which will
cause failure in our tesselation routine, so we need to check whether
this is a valid POLYGON before re-tesselating.
When importing footprints, some are generated with non-standard (e.g.
"mod") extensions. As a last option, we allow the * wildcard to select
these files for import.
Tesselation can fail for a number of reasons. When this happens, we set
the triangulationValid flag to false to prevent using the broken
triangulation. This will fall back to the slow OpenGL triangulation
when DrawPolygon is called.
Use TesselatePolygon() to draw polygons in Gerbview instead of GLU tesselation, much slower.
Add helper methods in GAL to know if the current GAL engine is Cairo, OpenGL or something else,
useful to optimize drawing code.