/usr/share/doc/ttfautohint/TODO is in ttfautohint 1.8.1-1.
This file is owned by root:root, with mode 0o644.
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add features to the GUI
-> direct control over `actions'
-> preview similar to ftgrid
-> autocompletion of file names with tab key
control `gasp' table; Adam Twardoch suggest the following:
1. Calculate "gaspstem", i.e. the most common thickness of horizontal
stems (y direction distances) for lowercase Latin letters.
2. If gaspstem <= 0.03 * upm, apply gasp symmetric smoothing across the
entire range (rangeMaxPPEM 0xFFFF, value 15)
3. Else, calculate gaspthreshold as follows:
ceil(1.33 * upm / gaspstem) - 1
4. Apply no symmetric smoothing up to the gaspthreshold ppem (rangeMaxPPEM
gaspthreshold, value 7), and apply symmetric smoothing above.
In addition, ttfautohint should provide a commandline parameter that
allows the user to override the automatic logic. If that parameter = 0,
then gasp value 15 should be applied across the entire range. If the
parameter > 0, then up to that parameter value the gasp value 7 should be
applied, and gasp value 15 should be applied above.
create a separate blue zone class for `i' and `j':
. if the values differ more than a given threshold, handle them
separately
. otherwise, unify them with `f' and friends.
user-defined blue zones?
-> old-style digits
control the width of blue zones
add control over character ranges that define a script; in particular, add
support for the PUA
control the minimum stem width
try to `embolden' fonts at small sizes to avoid drop-outs; cf. Infinality
patches
make switching between smooth and strong hinting dependent on user-defined
ranges
improve `adjust-subglyphs' by making the used PPEM value configurable
allow hinting of single glyphs, using a config file that holds the global
settings
better handling of `incomplete' fonts (this is, fonts that lack the minimum
set of glyphs necessary to determine the blue zones)
add second-pass analysis to improve positioning of composite glyphs
introduce a new control instructions command to apply a given delta to a
whole contour
minor improvements
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add a glossary to the documentation
reject fonts that are `hopeless' (for example, `Lipstick')
correctly set `lowestRecPPEM' field in `head'
control dropout mode
apply hinting in x direction also?
-> warper: shifting with and without scaling
-> `standard' autofit hinting
add a config and/or command file for batch handling
warn against overwrite of output file in command-line mode?
reduce output size of option -p:
1. compare outline rendered at EM value with unhinted outline
2. adjust subglyphs only if result of item 1 differs more than given
threshold (default 0.5%?)
better control of -i output
allow processing of multiple files by using globs as in the Midnight
Commander?
allow composite fonts already processed by ttfautohint to be processed
again (due to option `hint-composites' this isn't urgent)
make ttfautohint remember options:
1. collect md5 checksums in a `~/.ttfautohint_history' file so that fonts
can be re-processed easily, using the same parameters
2. if fonts already processed by ttfautohint can be re-processed (which
isn't possible yet), parse the `version' string for parameters
implement (sort of) the opposite of -x, this is, decrease the x height
later enhancements
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add CJK autohinting module
instead of emitting bytecode, write the hints as a VTT or FontLab script
Windows/Mac installer
various
-------
testing with Windows and Apple font checkers
man page for ttfautohint library
add help2man script so that parallel builds always work
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