Font::TTF::Head(3)					User Contributed Perl Documentation					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 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.

   $t->XML_element($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.

perl v5.16.3							    2012-08-21							Font::TTF::Head(3)