def _startElementHandler(self, name, attrs):
stackSize = self.stackSize
self.stackSize = stackSize + 1
if not stackSize:
if name != "ttFont":
raise TTXParseError("illegal root tag: %s" % name)
sfntVersion = attrs.get("sfntVersion")
if sfntVersion is not None:
if len(sfntVersion) != 4:
sfntVersion = safeEval('"' + sfntVersion + '"')
self.ttFont.sfntVersion = sfntVersion
self.contentStack.append([])
elif stackSize == 1:
subFile = attrs.get("src")
if subFile is not None:
if hasattr(self.file, 'name'):
# if file has a name, get its parent directory
dirname = os.path.dirname(self.file.name)
else:
# else fall back to using the current working directory
dirname = os.getcwd()
subFile = os.path.join(dirname, subFile)
subReader = XMLReader(subFile, self.ttFont, self.progress,
self.quiet)
subReader.read()
self.contentStack.append([])
return
tag = ttLib.xmlToTag(name)
msg = "Parsing '%s' table..." % tag
if self.progress:
self.progress.setLabel(msg)
elif self.ttFont.verbose:
ttLib.debugmsg(msg)
else:
if not self.quiet:
print(msg)
if tag == "GlyphOrder":
tableClass = ttLib.GlyphOrder
elif "ERROR" in attrs or ('raw' in attrs
and safeEval(attrs['raw'])):
tableClass = DefaultTable
else:
tableClass = ttLib.getTableClass(tag)
if tableClass is None:
tableClass = DefaultTable
if tag == 'loca' and tag in self.ttFont:
# Special-case the 'loca' table as we need the
# original if the 'glyf' table isn't recompiled.
self.currentTable = self.ttFont[tag]
else:
self.currentTable = tableClass(tag)
self.ttFont[tag] = self.currentTable
self.contentStack.append([])
elif stackSize == 2:
self.contentStack.append([])
self.root = (name, attrs, self.contentStack[-1])
else:
l = []
self.contentStack[-1].append((name, attrs, l))
self.contentStack.append(l)
def _writeTableDirectory(self):
if self.verbose:
debugmsg("writing table directory")
self.file.seek(woffHeaderSize)
for tag, (index, entry, data) in sorted(self.tables.items()):
entry = sstruct.pack(woffDirectoryEntryFormat, entry)
self.file.write(entry)
def _writeTableDirectory(self):
if self.verbose:
debugmsg("writing table directory")
self.file.seek(woffHeaderSize)
for tag, (index, entry, data) in sorted(self.tables.items()):
entry = sstruct.pack(woffDirectoryEntryFormat, entry)
self.file.write(entry)
def _checkTableConformance(self, entry, data):
"""
Check the conformance of the table directory entries.
These must be checked because the origChecksum, origLength
and compLength can be set by an outside caller.
"""
if self.verbose:
debugmsg("checking conformance of '%s' table" % entry.tag)
# origLength must be less than or equal to compLength
if entry.origLength < entry.compLength:
raise WOFFLibError(
"origLength and compLength are not correct in the '%s' table entry."
% entry.tag)
# unpack the data as needed
if entry.origLength > entry.compLength:
origData = zlib.decompress(data)
compData = data
else:
origData = data
compData = data
# the origLength entry must match the actual length
if entry.origLength != len(origData):
raise WOFFLibError(
"origLength is not correct in the '%s' table entry." %
entry.tag)
# the checksum must be correct
if entry.origChecksum != calcTableChecksum(entry.tag, origData):
raise WOFFLibError(
"origChecksum is not correct in the '%s' table entry." %
entry.tag)
# the compLength must be correct
if entry.compLength != len(compData):
raise WOFFLibError(
"compLength is not correct in the '%s' table entry." %
entry.tag)
def _checkTableConformance(self, entry, data):
"""
Check the conformance of the table directory entries.
These must be checked because the origChecksum, origLength
and compLength can be set by an outside caller.
"""
if self.verbose:
debugmsg("checking conformance of '%s' table" % entry.tag)
# origLength must be less than or equal to compLength
if entry.origLength < entry.compLength:
raise WOFFLibError("origLength and compLength are not correct in the '%s' table entry." % entry.tag)
# unpack the data as needed
if entry.origLength > entry.compLength:
origData = zlib.decompress(data)
compData = data
else:
origData = data
compData = data
# the origLength entry must match the actual length
if entry.origLength != len(origData):
raise WOFFLibError("origLength is not correct in the '%s' table entry." % entry.tag)
# the checksum must be correct
if entry.origChecksum != calcTableChecksum(entry.tag, origData):
raise WOFFLibError("origChecksum is not correct in the '%s' table entry." % entry.tag)
# the compLength must be correct
if entry.compLength != len(compData):
raise WOFFLibError("compLength is not correct in the '%s' table entry." % entry.tag)
def _prepTable(self, tag, data, origLength=None, origChecksum=None, compLength=None, entryOnly=False):
# skip data prep
if entryOnly:
origLength = origLength
origChecksum = calcTableChecksum(tag, data)
compLength = 0
# prep the data
else:
# compress
if compLength is None:
origData = data
origLength = len(origData)
origChecksum = calcTableChecksum(tag, data)
if self.verbose:
debugmsg("compressing '%s' table" % tag)
compData = zlib.compress(origData, self.compressionLevel)
compLength = len(compData)
if origLength <= compLength:
data = origData
compLength = origLength
else:
data = compData
# make the directory entry
entry = WOFFDirectoryEntry()
entry.tag = tag
entry.offset = 0
entry.origLength = origLength
entry.origChecksum = origChecksum
entry.compLength = compLength
# return
if entryOnly:
return entry
return entry, data
def _startElementHandler(self, name, attrs):
stackSize = self.stackSize
self.stackSize = stackSize + 1
if not stackSize:
if name != "ttFont":
raise TTXParseError("illegal root tag: %s" % name)
sfntVersion = attrs.get("sfntVersion")
if sfntVersion is not None:
if len(sfntVersion) != 4:
sfntVersion = safeEval('"' + sfntVersion + '"')
self.ttFont.sfntVersion = sfntVersion
self.contentStack.append([])
elif stackSize == 1:
subFile = attrs.get("src")
if subFile is not None:
if hasattr(self.file, 'name'):
# if file has a name, get its parent directory
dirname = os.path.dirname(self.file.name)
else:
# else fall back to using the current working directory
dirname = os.getcwd()
subFile = os.path.join(dirname, subFile)
subReader = XMLReader(subFile, self.ttFont, self.progress, self.quiet)
subReader.read()
self.contentStack.append([])
return
tag = ttLib.xmlToTag(name)
msg = "Parsing '%s' table..." % tag
if self.progress:
self.progress.setLabel(msg)
elif self.ttFont.verbose:
ttLib.debugmsg(msg)
else:
if not self.quiet:
print(msg)
if tag == "GlyphOrder":
tableClass = ttLib.GlyphOrder
elif "ERROR" in attrs or ('raw' in attrs and safeEval(attrs['raw'])):
tableClass = DefaultTable
else:
tableClass = ttLib.getTableClass(tag)
if tableClass is None:
tableClass = DefaultTable
if tag == 'loca' and tag in self.ttFont:
# Special-case the 'loca' table as we need the
# original if the 'glyf' table isn't recompiled.
self.currentTable = self.ttFont[tag]
else:
self.currentTable = tableClass(tag)
self.ttFont[tag] = self.currentTable
self.contentStack.append([])
elif stackSize == 2:
self.contentStack.append([])
self.root = (name, attrs, self.contentStack[-1])
else:
l = []
self.contentStack[-1].append((name, attrs, l))
self.contentStack.append(l)
def _writePrivateData(self):
if self.privateData is None:
return
if self.verbose:
debugmsg("writing private data")
if self.metadata is not None:
self.privOffset = self.metadataEnd
else:
self.privOffset = self.tableDataEnd
self.length += self.privLength
self.file.seek(self.privOffset)
self.file.write(self.privateData)
def _writePrivateData(self):
if self.privateData is None:
return
if self.verbose:
debugmsg("writing private data")
if self.metadata is not None:
self.privOffset = self.metadataEnd
else:
self.privOffset = self.tableDataEnd
self.length += self.privLength
self.file.seek(self.privOffset)
self.file.write(self.privateData)
def startElementHandler(self, name, attrs):
stackSize = self.stackSize
self.stackSize = stackSize + 1
if not stackSize:
if name <> "ttFont":
raise TTXParseError, "illegal root tag: %s" % name
sfntVersion = attrs.get("sfntVersion")
if sfntVersion is not None:
if len(sfntVersion) <> 4:
sfntVersion = safeEval('"' + sfntVersion + '"')
self.ttFont.sfntVersion = sfntVersion
self.contentStack.append([])
elif stackSize == 1:
subFile = attrs.get("src")
if subFile is not None:
subFile = os.path.join(os.path.dirname(self.fileName), subFile)
importXML(self.ttFont, subFile, self.progress)
self.contentStack.append([])
return
tag = ttLib.xmlToTag(name)
msg = "Parsing '%s' table..." % tag
if self.progress:
self.progress.setlabel(msg)
elif self.ttFont.verbose:
ttLib.debugmsg(msg)
else:
if not self.quiet:
print msg
if tag == "GlyphOrder":
tableClass = ttLib.GlyphOrder
elif attrs.has_key("ERROR"):
tableClass = DefaultTable
else:
tableClass = ttLib.getTableClass(tag)
if tableClass is None:
tableClass = DefaultTable
if tag == 'loca' and self.ttFont.has_key(tag):
# Special-case the 'loca' table as we need the
# original if the 'glyf' table isn't recompiled.
self.currentTable = self.ttFont[tag]
else:
self.currentTable = tableClass(tag)
self.ttFont[tag] = self.currentTable
self.contentStack.append([])
elif stackSize == 2:
self.contentStack.append([])
self.root = (name, attrs, self.contentStack[-1])
else:
list = []
self.contentStack[-1].append((name, attrs, list))
self.contentStack.append(list)
def setMetadata(self, data, metaOrigLength=None, metaLength=None):
if not data:
return
if metaLength is None:
if self.verbose:
debugmsg("compressing metadata")
metaOrigLength = len(data)
data = zlib.compress(data, self.compressionLevel)
metaLength = len(data)
# set the header values
self.metaOrigLength = metaOrigLength
self.metaLength = metaLength
# store
self.metadata = data
def _writeTableData(self):
d = woffHeaderSize + (woffDirectoryEntrySize * self.numTables)
offset = woffHeaderSize + (woffDirectoryEntrySize * self.numTables)
self.file.seek(offset)
for tag in self._tableOrder():
if self.verbose:
debugmsg("writing '%s' table" % tag)
index, entry, data = self.tables[tag]
data += "\0" * (calc4BytePaddedLength(entry.compLength) - entry.compLength ) # ensure byte alignment
self.file.write(data)
self.length += calc4BytePaddedLength(entry.compLength) # ensure byte alignment
self.totalSFNTSize += calc4BytePaddedLength(entry.origLength) # ensure byte alignment
# store the end for use by metadata or private data
self.tableDataEnd = self.length
def startElementHandler(self, name, attrs):
stackSize = self.stackSize
self.stackSize = stackSize + 1
if not stackSize:
if name <> "ttFont":
raise TTXParseError, "illegal root tag: %s" % name
sfntVersion = attrs.get("sfntVersion")
if sfntVersion is not None:
if len(sfntVersion) <> 4:
sfntVersion = safeEval('"' + sfntVersion + '"')
self.ttFont.sfntVersion = sfntVersion
self.contentStack.append([])
elif stackSize == 1:
subFile = attrs.get("src")
if subFile is not None:
subFile = os.path.join(os.path.dirname(self.fileName), subFile)
importXML(self.ttFont, subFile, self.progress)
self.contentStack.append([])
return
tag = ttLib.xmlToTag(name)
msg = "Parsing '%s' table..." % tag
if self.progress:
self.progress.setlabel(msg)
elif self.ttFont.verbose:
ttLib.debugmsg(msg)
else:
print msg
if tag == "GlyphOrder":
tableClass = ttLib.GlyphOrder
elif attrs.has_key("ERROR"):
tableClass = DefaultTable
else:
tableClass = ttLib.getTableClass(tag)
if tableClass is None:
tableClass = DefaultTable
if tag == 'loca' and self.ttFont.has_key(tag):
# Special-case the 'loca' table as we need the
# original if the 'glyf' table isn't recompiled.
self.currentTable = self.ttFont[tag]
else:
self.currentTable = tableClass(tag)
self.ttFont[tag] = self.currentTable
self.contentStack.append([])
elif stackSize == 2:
self.contentStack.append([])
self.root = (name, attrs, self.contentStack[-1])
else:
list = []
self.contentStack[-1].append((name, attrs, list))
self.contentStack.append(list)
def setMetadata(self, data, metaOrigLength=None, metaLength=None):
if not data:
return
if metaLength is None:
if self.verbose:
debugmsg("compressing metadata")
metaOrigLength = len(data)
data = zlib.compress(data, self.compressionLevel)
metaLength = len(data)
# set the header values
self.metaOrigLength = metaOrigLength
self.metaLength = metaLength
# store
self.metadata = data
def _writeTableData(self):
d = woffHeaderSize + (woffDirectoryEntrySize * self.numTables)
offset = woffHeaderSize + (woffDirectoryEntrySize * self.numTables)
self.file.seek(offset)
for tag in self._tableOrder():
if self.verbose:
debugmsg("writing '%s' table" % tag)
index, entry, data = self.tables[tag]
data += "\0" * (calc4BytePaddedLength(entry.compLength) -
entry.compLength) # ensure byte alignment
self.file.write(data)
self.length += calc4BytePaddedLength(
entry.compLength) # ensure byte alignment
self.totalSFNTSize += calc4BytePaddedLength(
entry.origLength) # ensure byte alignment
# store the end for use by metadata or private data
self.tableDataEnd = self.length
def _writeMetadata(self):
if self.metadata is None:
return
if self.verbose:
debugmsg("writing metadata")
self.length += self.metaLength
self.metaOffset = self.tableDataEnd
self.file.seek(self.metaOffset)
self.file.write(self.metadata)
# store the end for use by private data
self.metadataEnd = self.metaOffset + self.metaLength
# if private data exists, pad to a four byte boundary
if self.privateData is not None:
padding = calc4BytePaddedLength(self.metaLength) - self.metaLength
self.metadataEnd += padding
self.length += padding
padding = "\0" * padding
if padding:
self.file.write(padding)
def _writeMetadata(self):
if self.metadata is None:
return
if self.verbose:
debugmsg("writing metadata")
self.length += self.metaLength
self.metaOffset = self.tableDataEnd
self.file.seek(self.metaOffset)
self.file.write(self.metadata)
# store the end for use by private data
self.metadataEnd = self.metaOffset + self.metaLength
# if private data exists, pad to a four byte boundary
if self.privateData is not None:
padding = calc4BytePaddedLength(self.metaLength) - self.metaLength
self.metadataEnd += padding
self.length += padding
padding = "\0" * padding
if padding:
self.file.write(padding)
def fromXML(self, name, attrs, content, ttFont):
if name != "TTGlyph":
return
if not hasattr(self, "glyphs"):
self.glyphs = {}
if not hasattr(self, "glyphOrder"):
self.glyphOrder = ttFont.getGlyphOrder()
glyphName = attrs["name"]
if ttFont.verbose:
ttLib.debugmsg("unpacking glyph '%s'" % glyphName)
glyph = Glyph()
for attr in ['xMin', 'yMin', 'xMax', 'yMax']:
setattr(glyph, attr, safeEval(attrs.get(attr, '0')))
self.glyphs[glyphName] = glyph
for element in content:
if not isinstance(element, tuple):
continue
name, attrs, content = element
glyph.fromXML(name, attrs, content, ttFont)
if not ttFont.recalcBBoxes:
glyph.compact(self, 0)
def _handleHeadChecksum(self):
if self.verbose:
debugmsg("updating head checkSumAdjustment")
# get the value
tables = {}
offset = sfntDirectorySize + (sfntDirectoryEntrySize * self.numTables)
for (index, entry, data) in sorted(self.tables.values()):
tables[entry.tag] = dict(offset=offset, length=entry.origLength, checkSum=entry.origChecksum)
offset += calc4BytePaddedLength(entry.origLength)
checkSumAdjustment = calcHeadCheckSumAdjustment(self.flavor, tables)
# set the value in the head table
index, entry, data = self.tables["head"]
data = data[:8] + struct.pack(">L", checkSumAdjustment) + data[12:]
# compress the data
newEntry, data = self._prepTable("head", data)
# update the entry data
assert entry.origChecksum == newEntry.origChecksum
entry.origLength = newEntry.origLength
entry.compLength = newEntry.compLength
# store
self.tables["head"] = (index, entry, data)
def fromXML(self, name, attrs, content, ttFont):
if name != "TTGlyph":
return
if not hasattr(self, "glyphs"):
self.glyphs = {}
if not hasattr(self, "glyphOrder"):
self.glyphOrder = ttFont.getGlyphOrder()
glyphName = attrs["name"]
if ttFont.verbose:
ttLib.debugmsg("unpacking glyph '%s'" % glyphName)
glyph = Glyph()
for attr in ['xMin', 'yMin', 'xMax', 'yMax']:
setattr(glyph, attr, safeEval(attrs.get(attr, '0')))
self.glyphs[glyphName] = glyph
for element in content:
if not isinstance(element, tuple):
continue
name, attrs, content = element
glyph.fromXML(name, attrs, content, ttFont)
if not ttFont.recalcBBoxes:
glyph.compact(self, 0)
def _prepTable(self,
tag,
data,
origLength=None,
origChecksum=None,
compLength=None,
entryOnly=False):
# skip data prep
if entryOnly:
origLength = origLength
origChecksum = calcTableChecksum(tag, data)
compLength = 0
# prep the data
else:
# compress
if compLength is None:
origData = data
origLength = len(origData)
origChecksum = calcTableChecksum(tag, data)
if self.verbose:
debugmsg("compressing '%s' table" % tag)
compData = zlib.compress(origData, self.compressionLevel)
compLength = len(compData)
if origLength <= compLength:
data = origData
compLength = origLength
else:
data = compData
# make the directory entry
entry = WOFFDirectoryEntry()
entry.tag = tag
entry.offset = 0
entry.origLength = origLength
entry.origChecksum = origChecksum
entry.compLength = compLength
# return
if entryOnly:
return entry
return entry, data
def _handleHeadChecksum(self):
if self.verbose:
debugmsg("updating head checkSumAdjustment")
# get the value
tables = {}
offset = sfntDirectorySize + (sfntDirectoryEntrySize * self.numTables)
for (index, entry, data) in sorted(self.tables.values()):
tables[entry.tag] = dict(offset=offset,
length=entry.origLength,
checkSum=entry.origChecksum)
offset += calc4BytePaddedLength(entry.origLength)
checkSumAdjustment = calcHeadCheckSumAdjustment(self.flavor, tables)
# set the value in the head table
index, entry, data = self.tables["head"]
data = data[:8] + struct.pack(">L", checkSumAdjustment) + data[12:]
# compress the data
newEntry, data = self._prepTable("head", data)
# update the entry data
assert entry.origChecksum == newEntry.origChecksum
entry.origLength = newEntry.origLength
entry.compLength = newEntry.compLength
# store
self.tables["head"] = (index, entry, data)
def save(self,
file,
compressionLevel=9,
recompressTables=False,
reorderTables=True,
recalculateHeadChecksum=True):
"""
Save a WOFF into file a file object specifified by the
file argument.. Optionally, file can be a path and a
new file will be created at that location.
compressionLevel is the compression level to be
used with zlib. This must be an int between 1 and 9.
The default is 9, the highest compression, but slowest
compression time.
Set recompressTables to True if you want any already
compressed tables to be decompressed and then recompressed
using the level specified by compressionLevel.
If you want the tables in the WOFF reordered following
the suggested optimal table orderings described in the
OTF/OFF sepecification, set reorderTables to True.
Tables cannot be reordered if a DSIG table is in the font.
If you change any of the SFNT data or reorder the tables,
the head table checkSumAdjustment must be recalculated.
If you are not changing any of the SFNT data, you can set
recalculateHeadChecksum to False to prevent the recalculation.
This must be set to False if the font contains a DSIG table.
"""
# if DSIG is to be written, the table order
# must be completely specified. otherwise the
# DSIG may not be valid after decoding the WOFF.
tags = self.keys()
if "GlyphOrder" in tags:
tags.remove("GlyphOrder")
if "DSIG" in tags:
if self._tableOrder is None or (set(self._tableOrder) !=
set(tags)):
raise WOFFLibError(
"A complete table order must be supplied when saving a font with a 'DSIG' table."
)
elif reorderTables:
raise WOFFLibError(
"Tables can not be reordered when a 'DSIG' table is in the font. Set reorderTables to False."
)
elif recalculateHeadChecksum:
raise WOFFLibError(
"The 'head' table checkSumAdjustment can not be recalculated when a 'DSIG' table is in the font."
)
# sort the tags if necessary
if reorderTables:
tags = sortedTagList(tags)
# open a file if necessary
closeStream = False
if not hasattr(file, "write"):
closeStream = True
file = open(file, "wb")
# write the table data
if "GlyphOrder" in tags:
tags.remove("GlyphOrder")
numTables = len(tags)
writer = WOFFWriter(file,
numTables,
flavor=self.flavor,
majorVersion=self.majorVersion,
minorVersion=self.minorVersion,
compressionLevel=compressionLevel,
recalculateHeadChecksum=recalculateHeadChecksum,
verbose=self.verbose)
for tag in tags:
origData = None
origLength = None
origChecksum = None
compLength = None
# table is loaded
if self.isLoaded(tag):
origData = self.getTableData(tag)
# table is in reader
elif self.reader is not None:
if recompressTables:
origData = self.getTableData(tag)
else:
if self.verbose:
debugmsg("Reading '%s' table from disk" % tag)
origData, origLength, origChecksum, compLength = self.reader.getCompressedTableData(
tag)
# add to writer
writer.setTable(tag,
origData,
origLength=origLength,
origChecksum=origChecksum,
compLength=compLength)
# write the metadata
metadata = None
metaOrigLength = None
metaLength = None
if hasattr(self, "metadata"):
declaration = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
tree = ElementTree.ElementTree(self.metadata)
f = StringIO()
tree.write(f, encoding="utf-8")
metadata = f.getvalue()
# make sure the metadata starts with the declaration
if not metadata.startswith(declaration):
metadata = declaration + metadata
del f
elif self.reader is not None:
if recompressTables:
metadata = self.reader.metadata
else:
metadata, metaOrigLength, metaLength = self.reader.getCompressedMetadata(
)
if metadata:
writer.setMetadata(metadata,
metaOrigLength=metaOrigLength,
metaLength=metaLength)
# write the private data
privData = self.privateData
if privData:
writer.setPrivateData(privData)
# close the writer
writer.close()
# close the file
if closeStream:
file.close()
class table__g_l_y_f(DefaultTable.DefaultTable):
def decompile(self, data, ttFont):
loca = ttFont['loca']
last = int(loca[0])
self.glyphs = {}
self.glyphOrder = glyphOrder = ttFont.getGlyphOrder()
for i in range(0, len(loca) - 1):
glyphName = glyphOrder[i]
next = int(loca[i + 1])
glyphdata = data[last:next]
if len(glyphdata) <> (next - last):
raise ttLib.TTLibError, "not enough 'glyf' table data"
glyph = Glyph(glyphdata)
self.glyphs[glyphName] = glyph
last = next
# this should become a warning:
#if len(data) > next:
# raise ttLib.TTLibError, "too much 'glyf' table data"
def compile(self, ttFont):
if not hasattr(self, "glyphOrder"):
self.glyphOrder = ttFont.getGlyphOrder()
import string
locations = []
currentLocation = 0
dataList = []
recalcBBoxes = ttFont.recalcBBoxes
for glyphName in self.glyphOrder:
glyph = self.glyphs[glyphName]
glyphData = glyph.compile(self, recalcBBoxes)
locations.append(currentLocation)
currentLocation = currentLocation + len(glyphData)
dataList.append(glyphData)
locations.append(currentLocation)
data = string.join(dataList, "")
ttFont['loca'].set(locations)
ttFont['maxp'].numGlyphs = len(self.glyphs)
return data
def toXML(self, writer, ttFont, progress=None):
writer.newline()
glyphNames = ttFont.getGlyphNames()
writer.comment(
"The xMin, yMin, xMax and yMax values\nwill be recalculated by the compiler."
)
writer.newline()
writer.newline()
counter = 0
progressStep = 10
numGlyphs = len(glyphNames)
for glyphName in glyphNames:
if not counter % progressStep and progress is not None:
progress.setLabel("Dumping 'glyf' table... (%s)" % glyphName)
progress.increment(progressStep / float(numGlyphs))
counter = counter + 1
glyph = self[glyphName]
if glyph.numberOfContours:
writer.begintag('TTGlyph', [
("name", glyphName),
("xMin", glyph.xMin),
("yMin", glyph.yMin),
("xMax", glyph.xMax),
("yMax", glyph.yMax),
])
writer.newline()
glyph.toXML(writer, ttFont)
writer.endtag('TTGlyph')
writer.newline()
else:
writer.simpletag('TTGlyph', name=glyphName)
writer.comment("contains no outline data")
writer.newline()
writer.newline()
def fromXML(self, (name, attrs, content), ttFont):
if name <> "TTGlyph":
return
if not hasattr(self, "glyphs"):
self.glyphs = {}
if not hasattr(self, "glyphOrder"):
self.glyphOrder = ttFont.getGlyphOrder()
glyphName = attrs["name"]
if ttFont.verbose:
ttLib.debugmsg("unpacking glyph '%s'" % glyphName)
glyph = Glyph()
for attr in ['xMin', 'yMin', 'xMax', 'yMax']:
setattr(glyph, attr, safeEval(attrs.get(attr, '0')))
self.glyphs[glyphName] = glyph
for element in content:
if type(element) <> TupleType:
continue
glyph.fromXML(element, ttFont)
if not ttFont.recalcBBoxes:
glyph.compact(self, 0)
def save(self, file, compressionLevel=9, recompressTables=False, reorderTables=True, recalculateHeadChecksum=True):
"""
Save a WOFF into file a file object specifified by the
file argument.. Optionally, file can be a path and a
new file will be created at that location.
compressionLevel is the compression level to be
used with zlib. This must be an int between 1 and 9.
The default is 9, the highest compression, but slowest
compression time.
Set recompressTables to True if you want any already
compressed tables to be decompressed and then recompressed
using the level specified by compressionLevel.
If you want the tables in the WOFF reordered following
the suggested optimal table orderings described in the
OTF/OFF sepecification, set reorderTables to True.
Tables cannot be reordered if a DSIG table is in the font.
If you change any of the SFNT data or reorder the tables,
the head table checkSumAdjustment must be recalculated.
If you are not changing any of the SFNT data, you can set
recalculateHeadChecksum to False to prevent the recalculation.
This must be set to False if the font contains a DSIG table.
"""
# if DSIG is to be written, the table order
# must be completely specified. otherwise the
# DSIG may not be valid after decoding the WOFF.
tags = self.keys()
if "GlyphOrder" in tags:
tags.remove("GlyphOrder")
if "DSIG" in tags:
if self._tableOrder is None or (set(self._tableOrder) != set(tags)):
raise WOFFLibError("A complete table order must be supplied when saving a font with a 'DSIG' table.")
elif reorderTables:
raise WOFFLibError("Tables can not be reordered when a 'DSIG' table is in the font. Set reorderTables to False.")
elif recalculateHeadChecksum:
raise WOFFLibError("The 'head' table checkSumAdjustment can not be recalculated when a 'DSIG' table is in the font.")
# sort the tags if necessary
if reorderTables:
tags = sortedTagList(tags)
# open a file if necessary
closeStream = False
if not hasattr(file, "write"):
closeStream = True
file = open(file, "wb")
# write the table data
if "GlyphOrder" in tags:
tags.remove("GlyphOrder")
numTables = len(tags)
writer = WOFFWriter(file, numTables, flavor=self.flavor,
majorVersion=self.majorVersion, minorVersion=self.minorVersion,
compressionLevel=compressionLevel, recalculateHeadChecksum=recalculateHeadChecksum,
verbose=self.verbose)
for tag in tags:
origData = None
origLength = None
origChecksum = None
compLength = None
# table is loaded
if self.isLoaded(tag):
origData = self.getTableData(tag)
# table is in reader
elif self.reader is not None:
if recompressTables:
origData = self.getTableData(tag)
else:
if self.verbose:
debugmsg("Reading '%s' table from disk" % tag)
origData, origLength, origChecksum, compLength = self.reader.getCompressedTableData(tag)
# add to writer
writer.setTable(tag, origData, origLength=origLength, origChecksum=origChecksum, compLength=compLength)
# write the metadata
metadata = None
metaOrigLength = None
metaLength = None
if hasattr(self, "metadata"):
declaration = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
tree = ElementTree.ElementTree(self.metadata)
f = StringIO()
tree.write(f, encoding="utf-8")
metadata = f.getvalue()
# make sure the metadata starts with the declaration
if not metadata.startswith(declaration):
metadata = declaration + metadata
del f
elif self.reader is not None:
if recompressTables:
metadata = self.reader.metadata
else:
metadata, metaOrigLength, metaLength = self.reader.getCompressedMetadata()
if metadata:
writer.setMetadata(metadata, metaOrigLength=metaOrigLength, metaLength=metaLength)
# write the private data
privData = self.privateData
if privData:
writer.setPrivateData(privData)
# close the writer
writer.close()
# close the file
if closeStream:
file.close()
