4 write a platform-independent GUI
5 -> direct control over `actions'
6 -> preview similar to ftgrid
10 ----------------------
15 control `gasp' table; Adam Twardoch suggest the following:
17 1. Calculate "gaspstem", i.e. the most common thickness of horizontal
18 stems (y direction distances) for lowercase Latin letters.
19 2. If gaspstem <= 0.03 * upm, apply gasp symmetric smoothing across the
20 entire range (rangeMaxPPEM 0xFFFF, value 15)
21 3. Else, calculate gaspthreshold as follows:
22 ceil(1.33 * upm / gaspstem) - 1
23 4. Apply no symmetric smoothing up to the gaspthreshold ppem (rangeMaxPPEM
24 gaspthreshold, value 7), and apply symmetric smoothing above.
26 In addition, ttfautohint should provide a commandline parameter that
27 allows the user to override the automatic logic. If that parameter = 0,
28 then gasp value 15 should be applied across the entire range. If the
29 parameter > 0, then up to that parameter value the gasp value 7 should be
30 applied, and gasp value 15 should be applied above.
32 disable hinting at large ppem values (> ~2000) to avoid numeric overflows
36 control activation threshold of blue zone widths
38 control the width of blue zones
40 handle normal and bold fonts differently; cf. Infinality patches
42 control the minimum stem width
44 try to `embolden' fonts at small sizes to avoid drop-outs; cf. Infinality
47 implement `x-height-snapping-exceptions' and `pre-hinting'
49 allow hinting of single glyphs, using a config file which holds the global
52 better handling of `incomplete' fonts (this is, fonts which lack the minimum
53 set of glyphs necessary to determine the blue zones)
59 correctly set `modified' field in `head'
61 correctly set `lowestRecPPEM' field in `head'
63 set dropout mode et al.
65 apply hinting in x direction also?
66 -> warper: shifting with and without scaling
67 -> `standard' autofit hinting
69 try to reduce size of hints by handling strong points separately
71 add a config and/or command file for batch handling
77 add CJK autohinting module
78 add Hebrew autohinting module
80 instead of emitting bytecode, write the hints as a VTT or FontLab script
88 testing with Windows font checker
90 man page for ttfautohint library