font::ttf::head(3pm) [debian man page]

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

   $t->XML_element($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 v5.10.1							    2009-01-29						      Font::TTF::Head(3pm)

Font::TTF::Loca(3)					User Contributed Perl Documentation					Font::TTF::Loca(3)

NAME

       Font::TTF::Loca - the Locations table, which is intimately tied to the glyf table

DESCRIPTION

       The location table holds the directory of locations of each glyph within the glyf table. Due to this relationship and the unimportance of
       the actual locations when it comes to holding glyphs in memory, reading the location table results in the creation of glyph objects for
       each glyph and stores them here.  So if you are looking for glyphs, do not look in the "glyf" table, look here instead.

       Things get complicated if you try to change the glyph list within the one table.  The recommendation is to create another clean location
       object to replace this table in the font, ensuring that the old table is read first and to transfer or copy glyphs across from the read
       table to the new table.

INSTANCE VARIABLES

       The instance variables do not start with a space

       glyphs
	   An array of glyph objects for each glyph.

       glyphtype
	   A string containing the class name to create for each new glyph. If empty, defaults to Font::TTF::Glyph.

METHODS

   $t->new
       Creates a new location table making sure it has a glyphs array

   $t->read
       Reads the location table creating glyph objects (Font::TTF::Glyph) for each glyph allowing their later reading.

   $t->out($fh)
       Writes the location table out to $fh. Notice that not having read the location table implies that the glyf table has not been read either,
       so the numbers in the location table are still valid. Let's hope that "maxp/numGlyphs" and "head/indexToLocFmt" haven't changed otherwise
       we are in big trouble.

       The function uses the OUTLOC location in the glyph calculated when the glyf table was attempted to be output.

   $t->out_xml($context, $depth)
       No need to output a loca table, this is dynamically generated

   $t->glyphs_do(&func)
       Calls func for each glyph in this location table in numerical order:

	   &func($glyph, $glyph_num)

BUGS

       None known

AUTHOR

       Martin Hosken Martin_Hosken@sil.org. See Font::TTF::Font for copyright and licensing.

perl v5.16.3							    2012-02-23							Font::TTF::Loca(3)