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font::ttf::ttc

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

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 v5.16.3							    2011-10-13							 Font::TTF::Ttc(3)