font::ttf::head(3)
NAME
Font::TTF::Head - The head table for a TTF Font
DESCRIPTION
This is a very basic table with just instance variables as
described in the TTF documentation, using the same names.
One of the most commonly used is "unitsPerEm".
INSTANCE VARIABLES
- The "head" table has no internal instance variables beyond
those common to all tables and those specified in the
standard: - version
fontRevision
checkSumAdjustment
magicNumber
flags
unitsPerEm
created
modified
xMin
yMin
xMax
yMax
macStyle
lowestRecPPEM
fontDirectionHint
indexToLocFormat
glyphDataFormat - The two dates are held as an array of two unsigned longs
(32-bits)
METHODS
$t->read
Reads the table into memory thanks to some utility func
tions
$t->out($fh)
Writes the table to a file either from memory or by copy
ing. If in memory (which is usually) the checkSumAdjust
ment field is set to 0 as per the default if the file
checksum is not to be considered.
$t->XML_element($context, $depth, $key, $value)
Handles date process for the XML exporter
$t->update
Updates the head table based on the glyph data and the
hmtx table
$t->getdate($is_create)
Converts font modification time (or creation time if
$is_create is set) to a 32-bit integer as returned from
time(). Returns undef if the value is out of range, either
before the epoch or after the maximum storable time.
$t->setdate($time, $is_create)
Sets the time information for modification (or creation
time if $is_create is set) according to the 32-bit time
information.
BUGS
None known
AUTHOR
- Martin Hosken Martin_Hosken@sil.org. See Font::TTF::Font
for copyright and licensing.