phpman > perldoc > Font::TTF::Head(3pm)

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 functions

  $t->out($fh)
    Writes the table to a file either from memory or by copying. If in memory (which is usually) the
    checkSumAdjustment field is set to 0 as per the default if the file checksum is not to be
    considered.

  $t->minsize()
    Returns the minimum size this table can be. If it is smaller than this, then the table must be
    bad and should be deleted or whatever.

  $t->XML_element($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 <http://scripts.sil.org/FontUtils>.

LICENSING
    Copyright (c) 1998-2016, SIL International (http://www.sil.org)

    This module is released under the terms of the Artistic License 2.0. For details, see the full
    text of the license in the file LICENSE.