User-defined variables cannot be used for internally-reserved variables
Fixes https://gitlab.com/kicad/code/kicad/issues/11232
(cherry picked from commit c23679d9bdc3347c441d3e4a9460747012b510ad)
We only need one bottom to top layer sequence definition.
Plot a sequence of layer IDs (LSEQ) in the order of the sequence.
Add helper method to layer set (LSET) to create a sequence of layer IDs
using another sequence for ordering.
Allow falling back to the alternate variable definitions if the built-in
text block variables are not set.
Also push the project into variable resolution when plotting
Fixes https://gitlab.com/kicad/code/kicad/issues/11168
(cherry picked from commit c44d31fcfbd9b28cfa5778c428872e0f970908ca)
Use 4 digits in mantissa as default and when exporting SVG.
Allow 0 as line width: this is the right value to draw filled shapes with no outline thickness.
Bitmaps are now identified by an enum class instead of by pointers.
Bitmap loading and caching is now handled by a class in common, and
we no longer compile most bitmaps into the binary, so there is no
longer a bitmaps static library.
Instead, bitmaps are archived to a .tar.gz file which is installed
in ${KICAD_DATA}/resources/images.tar.gz
The source PNGs are checked in to Git as the original CPP files were,
so that people can build without the required dependencies to convert
SVGs to PNGs.
Initial support is also added for dark theme icons, although this
is not yet exposed in the GUI.
Stubs are present for multi-resolution image resources, but this is
not fully-baked yet and could use some refinement.
CHANGED: When the output path is set in the plotter dialog, the user is
asked if they want to make the path relative to the project. The old
code would ask the user if they wanted to do this, and then if it
failed would present an error dialog. The new code tries it first on
a copy, and only if it works does the user get asked if they want
to do it.
Fixes https://gitlab.com/kicad/code/kicad/issues/5263
both Ucamco and Eurocircuits.
Update message in plot dialog about best solder mask clearance value.
Show warning in plot dialog if these values are no 0.
Replace SEVERITY_ERROR by RPT_SEVERITY_ERROR to avoid collision with a system definition.
Replace other SEVERITY_XXX by RPT_SEVERITY_XX for consistency.
Fix compil warnings and some other compil issues.
