https://issues.apache.org/bugzilla/show_bug.cgi?id=48766
Summary: Support for Font Kerning is Broken
Product: Fop
Version: all
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: fonts
AssignedTo: [email protected]
ReportedBy: [email protected]
The method o.a.f.fonts.Font.getKernValue expects two Unicode code points and
returns the amount of kerning between the two corresponding glyphs. However,
the implementation for Type 1 fonts interprets the two integers as character
codes in the font's internal encoding (see o.a.f.fonts.type1.AFMFile.java).
Those usually have nothing to do with Unicode code points.
Moreover, trying to get kerning between two characters is inherently wrong:
kerning applies to glyphs and not characters. A font may have several glyph
variants for a same character, and kerning is likely to be different for each
variant.
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