package Font::TTF::Fdsc;

=head1 NAME

Font::TTF::Fdsc - Font Descriptors table in a font




=item version

=item descriptors

Hash keyed by descriptor tags


=head1 METHODS


use strict;
use vars qw(@ISA %fields);
use Font::TTF::Utils;

@ISA = qw(Font::TTF::Table);

=head2 $t->read

Reads the table into memory


sub read
    my ($self) = @_;
    my ($dat, $fh, $numDescs, $tag, $descs);

    $self->SUPER::read or return $self;

    $fh = $self->{' INFILE'};
    $fh->read($dat, 4);
    $self->{'version'} = TTF_Unpack("v", $dat);

    $fh->read($dat, 4);

    foreach (1 .. unpack("N", $dat)) {
        $fh->read($tag, 4);
        $fh->read($dat, 4);
        $descs->{$tag} = ($tag eq 'nalf') ? unpack("N", $dat) : TTF_Unpack("f", $dat);

    $self->{'descriptors'} = $descs;


=head2 $t->out($fh)

Writes the table to a file either from memory or by copying


sub out
    my ($self, $fh) = @_;
    my ($descs);

    return $self->SUPER::out($fh) unless $self->{' read'};
    $fh->print(TTF_Pack("v", $self->{'version'}));
    $descs = $self->{'descriptors'} || {};
    $fh->print(pack("N", scalar keys %$descs));    
    foreach (sort keys %$descs) {
        $fh->print(($_ eq 'nalf') ? pack("N", $descs->{$_}) : TTF_Pack("f", $descs->{$_}));


=head2 $t->print($fh)

Prints a human-readable representation of the table


sub print
    my ($self, $fh) = @_;
    my ($descs, $k);


    $fh = 'STDOUT' unless defined $fh;

    $descs = $self->{'descriptors'};
    foreach $k (sort keys %$descs) {
        if ($k eq 'nalf') {
            $fh->printf("Descriptor '%s' = %d\n", $k, $descs->{$k});
        else {
            $fh->printf("Descriptor '%s' = %f\n", $k, $descs->{$k});


=head1 BUGS

None known

=head1 AUTHOR

Jonathan Kew L<>. 


Copyright (c) 1998-2016, SIL International ( 

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.