/usr/lib/python2.7/dist-packages/FontTools/fontTools/ttLib/tables/_v_h_e_a.py is in fonttools 3.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | from __future__ import print_function, division, absolute_import
from fontTools.misc.py23 import *
from fontTools.misc import sstruct
from fontTools.misc.textTools import safeEval
from . import DefaultTable
vheaFormat = """
> # big endian
tableVersion: 16.16F
ascent: h
descent: h
lineGap: h
advanceHeightMax: H
minTopSideBearing: h
minBottomSideBearing: h
yMaxExtent: h
caretSlopeRise: h
caretSlopeRun: h
reserved0: h
reserved1: h
reserved2: h
reserved3: h
reserved4: h
metricDataFormat: h
numberOfVMetrics: H
"""
class table__v_h_e_a(DefaultTable.DefaultTable):
# Note: Keep in sync with table__h_h_e_a
dependencies = ['vmtx', 'glyf']
def decompile(self, data, ttFont):
sstruct.unpack(vheaFormat, data, self)
def compile(self, ttFont):
if ttFont.isLoaded('glyf') and ttFont.recalcBBoxes:
self.recalc(ttFont)
return sstruct.pack(vheaFormat, self)
def recalc(self, ttFont):
vtmxTable = ttFont['vmtx']
if 'glyf' in ttFont:
glyfTable = ttFont['glyf']
INFINITY = 100000
advanceHeightMax = 0
minTopSideBearing = +INFINITY # arbitrary big number
minBottomSideBearing = +INFINITY # arbitrary big number
yMaxExtent = -INFINITY # arbitrary big negative number
for name in ttFont.getGlyphOrder():
height, tsb = vtmxTable[name]
advanceHeightMax = max(advanceHeightMax, height)
g = glyfTable[name]
if g.numberOfContours == 0:
continue
if g.numberOfContours < 0 and not hasattr(g, "yMax"):
# Composite glyph without extents set.
# Calculate those.
g.recalcBounds(glyfTable)
minTopSideBearing = min(minTopSideBearing, tsb)
bsb = height - tsb - (g.yMax - g.yMin)
minBottomSideBearing = min(minBottomSideBearing, bsb)
extent = tsb + (g.yMax - g.yMin)
yMaxExtent = max(yMaxExtent, extent)
if yMaxExtent == -INFINITY:
# No glyph has outlines.
minTopSideBearing = 0
minBottomSideBearing = 0
yMaxExtent = 0
self.advanceHeightMax = advanceHeightMax
self.minTopSideBearing = minTopSideBearing
self.minBottomSideBearing = minBottomSideBearing
self.yMaxExtent = yMaxExtent
else:
# XXX CFF recalc...
pass
def toXML(self, writer, ttFont):
formatstring, names, fixes = sstruct.getformat(vheaFormat)
for name in names:
value = getattr(self, name)
writer.simpletag(name, value=value)
writer.newline()
def fromXML(self, name, attrs, content, ttFont):
setattr(self, name, safeEval(attrs["value"]))
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