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package Font::TTF::Mort::Rearrangement;
=head1 NAME
Font::TTF::Mort::Rearrangement - Rearrangement Mort subtable for AAT
=head1 METHODS
=cut
use strict;
use vars qw(@ISA);
use Font::TTF::Utils;
use Font::TTF::AATutils;
@ISA = qw(Font::TTF::Mort::Subtable);
sub new
{
my ($class, $direction, $orientation, $subFeatureFlags) = @_;
my ($self) = {
'direction' => $direction,
'orientation' => $orientation,
'subFeatureFlags' => $subFeatureFlags
};
$class = ref($class) || $class;
bless $self, $class;
}
=head2 $t->read
Reads the table into memory
=cut
sub read
{
my ($self, $fh) = @_;
my ($classes, $states) = AAT_read_state_table($fh, 0);
$self->{'classes'} = $classes;
$self->{'states'} = $states;
$self;
}
=head2 $t->pack_sub()
=cut
sub pack_sub
{
my ($self) = @_;
return AAT_pack_state_table($self->{'classes'}, $self->{'states'}, 0);
}
=head2 $t->print($fh)
Prints a human-readable representation of the table
=cut
sub print
{
my ($self, $fh) = @_;
my $post = $self->post();
$fh = 'STDOUT' unless defined $fh;
$self->print_classes($fh);
$fh->print("\n");
my $states = $self->{'states'};
my @verbs = ( "0", "Ax->xA", "xD->Dx", "AxD->DxA",
"ABx->xAB", "ABx->xBA", "xCD->CDx", "xCD->DCx",
"AxCD->CDxA", "AxCD->DCxA", "ABxD->DxAB", "ABxD->DxBA",
"ABxCD->CDxAB", "ABxCD->CDxBA", "ABxCD->DCxAB", "ABxCD->DCxBA");
foreach (0 .. $#$states) {
$fh->printf("\t\tState %d:", $_);
my $state = $states->[$_];
foreach (@$state) {
my $flags;
$flags .= "!" if ($_->{'flags'} & 0x4000);
$flags .= "<" if ($_->{'flags'} & 0x8000);
$flags .= ">" if ($_->{'flags'} & 0x2000);
$fh->printf("\t(%s%d,%s)", $flags, $_->{'nextState'}, $verbs[($_->{'flags'} & 0x000f)]);
}
$fh->print("\n");
}
}
1;
=head1 BUGS
None known
=head1 AUTHOR
Jonathan Kew L<Jonathan_Kew@sil.org>.
=head1 LICENSING
Copyright (c) 1998-2013, 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.
=cut
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