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

Font::TTF::Ttc(3pm)					User Contributed Perl Documentation				       Font::TTF::Ttc(3pm)

NAME

       Font::TTF::Ttc - Truetype Collection class

DESCRIPTION

       A TrueType collection is a collection of TrueType fonts in one file in which tables may be shared between different directories. In order
       to support this, the TTC introduces the concept of a table being shared by different TrueType fonts. This begs the question of what should
       happen to the ' PARENT' property of a particular table. It is made to point to the first directory object which refers to it. It is
       therefore up to the application to sort out any confusion.  Confusion only occurs if shared tables require access to non-shared tables.
       This should not happen since the shared tables are dealing with glyph information only and the private tables are dealing with encoding and
       glyph identification. Thus the general direction is from identification to glyph and not the other way around (at least not without
       knowledge of the particular context).

INSTANCE VARIABLES

       The following instance variables are preceded by a space

       fname (P)
	   Filename for this TrueType Collection

       INFILE (P)
	   The filehandle of this collection

       The following instance variable does not start with a space

       directs
	   An array of directories (Font::TTF::Font objects) for each sub-font in the directory

METHODS

   Font::TTF::Ttc->open($fname)
       Opens and reads the given filename as a TrueType Collection. Reading a collection involves reading each of the directories which go to make
       up the collection.

   $c->read
       Reads a Collection by reading all the directories in the collection

   $c->find($direct, $name, $check, $off, $len)
       Hunts around to see if a table with the given characteristics of name, checksum, offset and length has been associated with a directory
       earlier in the list.  Actually on checks the offset since no two tables can share the same offset in a TrueType font, collection or
       otherwise.

   $c->DESTROY
       Closees any opened files by us

BUGS

       No known bugs, but then not ever executed!

AUTHOR

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

perl v5.10.1							    2009-01-21						       Font::TTF::Ttc(3pm)

Check Out this Related 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)
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