# phpman > perldoc > Font::TTF::Ttc

## NAME
    [Font::TTF::Ttc](https://www.chedong.com/phpMan.php/perldoc/Font%3A%3ATTF%3A%3ATtc/markdown) - 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](https://www.chedong.com/phpMan.php/perldoc/Font%3A%3ATTF%3A%3AFont/markdown) objects) for each sub-font in the directory

## METHODS
  [Font::TTF::Ttc](https://www.chedong.com/phpMan.php/perldoc/Font%3A%3ATTF%3A%3ATtc/markdown)->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 <<http://scripts.sil.org/FontUtils>>.

## LICENSING
    Copyright (c) 1998-2016, 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.