Martin Hosken > Font-TTF-1.04 > Font::TTF::Head

Download:
Font-TTF-1.04.tar.gz

Dependencies

Annotate this POD

CPAN RT

Open  2
View/Report Bugs
Source  

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 Martin_Hosken@sil.org.

LICENSING ^

Copyright (c) 1998-2013, 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.

syntax highlighting: