5 try to reduce size of hints even more
7 add features to the GUI
8 -> direct control over `actions'
9 -> preview similar to ftgrid
11 improve handling of GDI ClearType by snapping to the pixel grid (this is,
12 integer coordinates of horizontal segments)
17 control `gasp' table; Adam Twardoch suggest the following:
19 1. Calculate "gaspstem", i.e. the most common thickness of horizontal
20 stems (y direction distances) for lowercase Latin letters.
21 2. If gaspstem <= 0.03 * upm, apply gasp symmetric smoothing across the
22 entire range (rangeMaxPPEM 0xFFFF, value 15)
23 3. Else, calculate gaspthreshold as follows:
24 ceil(1.33 * upm / gaspstem) - 1
25 4. Apply no symmetric smoothing up to the gaspthreshold ppem (rangeMaxPPEM
26 gaspthreshold, value 7), and apply symmetric smoothing above.
28 In addition, ttfautohint should provide a commandline parameter that
29 allows the user to override the automatic logic. If that parameter = 0,
30 then gasp value 15 should be applied across the entire range. If the
31 parameter > 0, then up to that parameter value the gasp value 7 should be
32 applied, and gasp value 15 should be applied above.
34 control activation threshold of blue zone widths; handle fonts with large
35 serifs like `Palatino' or `Quattrocento' (cf. this bug report:
36 https://savannah.nongnu.org/bugs/?36091)
38 create a separate blue zone class for `i' and `j':
39 . if the values differ more than a given threshold, handle them
41 . otherwise, unify them with `f' and friends.
43 control the characters used for blue zones
46 user-defined blue zones?
49 control the width of blue zones
51 handle normal and bold fonts differently; cf. Infinality patches;
52 this should help avoid filling of bowls (like in `e') for bold shapes.
54 control the minimum stem width
56 try to `embolden' fonts at small sizes to avoid drop-outs; cf. Infinality
59 implement `x-height-snapping-exceptions'
61 improve `pre-hinting' by making the used PPEM value configurable
63 allow hinting of single glyphs, using a config file which holds the global
66 better handling of `incomplete' fonts (this is, fonts which lack the minimum
67 set of glyphs necessary to determine the blue zones)
73 correctly set `lowestRecPPEM' field in `head'
77 apply hinting in x direction also?
78 -> warper: shifting with and without scaling
79 -> `standard' autofit hinting
81 add a config and/or command file for batch handling
83 warn against overwrite of output file?
85 reduce output size of option -p:
86 1. compare outline rendered at EM value with unhinted outline
87 2. pre-hint only if 1. differs more than given threshold (default 0.5%?)
89 make it possible to hint fonts which aren't alphabetic at all, for example,
90 icons; to do so, provide means to skip the global feature analysis
92 better control -i output
98 add CJK autohinting module
99 add Hebrew autohinting module
101 instead of emitting bytecode, write the hints as a VTT or FontLab script
103 Windows/Mac installer
109 testing with Windows and Apple font checkers
111 man page for ttfautohint library
115 add help2man script so that parallel builds always work