Add direct handling of quadratic beziers to save compute time and number
of points. Update cubic interpolation to reduce number of points
generated for a given smoothness
Cache data on open and used cached data to avoid multiple re-calcs
Remove minimum line length and number of segments and replace with
standard max error level. Allows us to specify the tolerance of bezier
interpolation
1) Don't fracture font glyphs when generating them; we're going
to fracture during triangulation anyway.
2) Don't check for self-intersection when deciding to fracture.
It costs nearly as much as the fracture does.
3) Cache drawing sheet text.
4) Use the current font when checking for cache validity.
5) Parallelize glyph triangulation.
6) Don't invalidate bounding box caches when offset by {0,0}
7) Use the glyph cache when generating text effective shape.
8) Short-circuit NormalizeJustification() if its center/center.
9) Don't triangulate for GuessSelectionCandidates()
10) Avoid sqrt whenever possible.
11) Pre-allocate bezier and SHAPE_LINE_CHAIN buffers.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/14303
Version 7 text alignment changed subtly for stroke fonts from version 6.
Additionally, the output has been different between screen and plotting,
leading to offset text in plotted output relative to the text shown on
screen.
This introduces a fudge factor in FONT::getLinePositions to correct the
offset in the plotting output relative to v6.
This also changes the SCH_PAINTER and PCB_PAINTER to correct the
relative offsets between GAL and PLOTTER classes. The source of these
offsets is atm unclear.
Fixes https://gitlab.com/kicad/code/kicad/issues/14755
Many minor tweaks were added that changed the output of the stroke font
from v5/v6. These offsets changed the gerber output expected. This
reverts the changes to something much closer to the v6 output. It is
not pixel-perfect but gets very close on most texts.
Fixes https://gitlab.com/kicad/code/kicad/issues/14609
The overbar function in outline fonts recursively calls the text
function which already owns the lock. To avoid this, we have an
unlocked variant that is wrapped by the exposed text function
Fixes https://gitlab.com/kicad/code/kicad/issues/14015
sentry KICAD-B1
https://freetype.org/freetype2/docs/reference/ft2-base_interface.html
[Since 2.5.6] In multi-threaded applications it is easiest to use one FT_Library object per thread.
In case this is too cumbersome, a single FT_Library object across threads is possible also, as long as a mutex lock is used around FT_New_Face and FT_Done_Face.
LoadFont()'s only usage already checked for nullptr to fallback, let's actually return nullptr on a failed load
Fixes sentry KICAD-8Z
Make the cause of sentry KICAD-95
If the font face doesn't include a Bold or Italic version, we still want
to display the font as bold/italic, so we fake it with freetype.
This also prevents recurring error messages where the outline font warns
about "substitutes" within the same font family.
Also allows variants on the weight descriptor to be used without
throwing a substitution warning
Fixes https://gitlab.com/kicad/code/kicad/issues/13654
Also fixes a bug that we'd render too many glyphs when some glyphs
were combined. (To test, render "text" in Apple Chancery. The opening
"te" is combined into a ligature after which we render an extra 't' at
the end.
Fixes https://gitlab.com/kicad/code/kicad/issues/11441
Also fixes some plot bugs with arcs.
Also moves polygonization of arcs (when required) in plotting code
from 5 degrees to calculated based on ARC_HIGH_DEF.
Fixes https://gitlab.com/kicad/code/kicad/issues/5017
Seth Hillbrand
Jeff Young
Alex Shvartzkop
Marek Roszko
Ian McInerney
jean-pierre charras
Ola Rinta-Koski