+++ /dev/null
-package Font::TTF::Mort::Subtable;
-
-=head1 NAME
-
-Font::TTF::Mort::Subtable - Mort subtable superclass for AAT
-
-=head1 METHODS
-
-=cut
-
-use strict;
-use Font::TTF::Utils;
-use Font::TTF::AATutils;
-use IO::File;
-
-require Font::TTF::Mort::Rearrangement;
-require Font::TTF::Mort::Contextual;
-require Font::TTF::Mort::Ligature;
-require Font::TTF::Mort::Noncontextual;
-require Font::TTF::Mort::Insertion;
-
-sub new
-{
- my ($class) = @_;
- my ($self) = {};
-
- $class = ref($class) || $class;
-
- bless $self, $class;
-}
-
-sub create
-{
- my ($class, $type, $coverage, $subFeatureFlags, $length) = @_;
-
- $class = ref($class) || $class;
-
- my $subclass;
- if ($type == 0) {
- $subclass = 'Font::TTF::Mort::Rearrangement';
- }
- elsif ($type == 1) {
- $subclass = 'Font::TTF::Mort::Contextual';
- }
- elsif ($type == 2) {
- $subclass = 'Font::TTF::Mort::Ligature';
- }
- elsif ($type == 4) {
- $subclass = 'Font::TTF::Mort::Noncontextual';
- }
- elsif ($type == 5) {
- $subclass = 'Font::TTF::Mort::Insertion';
- }
-
- my ($self) = $subclass->new(
- (($coverage & 0x4000) ? 'RL' : 'LR'),
- (($coverage & 0x2000) ? 'VH' : ($coverage & 0x8000) ? 'V' : 'H'),
- $subFeatureFlags
- );
-
- $self->{'type'} = $type;
- $self->{'length'} = $length;
-
- $self;
-}
-
-=head2 $t->out($fh)
-
-Writes the table to a file
-
-=cut
-
-sub out
-{
- my ($self, $fh) = @_;
-
- my ($subtableStart) = $fh->tell();
- my ($type) = $self->{'type'};
- my ($coverage) = $type;
- $coverage += 0x4000 if $self->{'direction'} eq 'RL';
- $coverage += 0x2000 if $self->{'orientation'} eq 'VH';
- $coverage += 0x8000 if $self->{'orientation'} eq 'V';
-
- $fh->print(TTF_Pack("SSL", 0, $coverage, $self->{'subFeatureFlags'})); # placeholder for length
-
- my ($dat) = $self->pack_sub();
- $fh->print($dat);
-
- my ($length) = $fh->tell() - $subtableStart;
- my ($padBytes) = (4 - ($length & 3)) & 3;
- $fh->print(pack("C*", (0) x $padBytes));
- $length += $padBytes;
- $fh->seek($subtableStart, IO::File::SEEK_SET);
- $fh->print(pack("n", $length));
- $fh->seek($subtableStart + $length, IO::File::SEEK_SET);
-}
-
-=head2 $t->print($fh)
-
-Prints a human-readable representation of the table
-
-=cut
-
-sub post
-{
- my ($self) = @_;
-
- my ($post) = $self->{' PARENT'}{' PARENT'}{' PARENT'}{'post'};
- if (defined $post) {
- $post->read;
- }
- else {
- $post = {};
- }
-
- return $post;
-}
-
-sub feat
-{
- my ($self) = @_;
-
- return $self->{' PARENT'}->feat();
-}
-
-sub print
-{
- my ($self, $fh) = @_;
-
- my ($feat) = $self->feat();
- my ($post) = $self->post();
-
- $fh = 'STDOUT' unless defined $fh;
-
- my ($type) = $self->{'type'};
- my ($subFeatureFlags) = $self->{'subFeatureFlags'};
- my ($defaultFlags) = $self->{' PARENT'}{'defaultFlags'};
- my ($featureEntries) = $self->{' PARENT'}{'featureEntries'};
- $fh->printf("\n\t%s table, %s, %s, subFeatureFlags = %08x # %s (%s)\n",
- subtable_type_($type), $_->{'direction'}, $_->{'orientation'}, $subFeatureFlags,
- "Default " . ((($subFeatureFlags & $defaultFlags) != 0) ? "On" : "Off"),
- join(", ",
- map {
- join(": ", $feat->settingName($_->{'type'}, $_->{'setting'}) )
- } grep { ($_->{'enable'} & $subFeatureFlags) != 0 } @$featureEntries
- ) );
-}
-
-sub subtable_type_
-{
- my ($val) = @_;
- my ($res);
-
- my (@types) = (
- 'Rearrangement',
- 'Contextual',
- 'Ligature',
- undef,
- 'Non-contextual',
- 'Insertion',
- );
- $res = $types[$val] or ('Undefined (' . $val . ')');
-
- $res;
-}
-
-=head2 $t->print_classes($fh)
-
-Prints a human-readable representation of the table
-
-=cut
-
-sub print_classes
-{
- my ($self, $fh) = @_;
-
- my ($post) = $self->post();
-
- my ($classes) = $self->{'classes'};
- foreach (0 .. $#$classes) {
- my $class = $classes->[$_];
- if (defined $class) {
- $fh->printf("\t\tClass %d:\t%s\n", $_, join(", ", map { $_ . " [" . $post->{'VAL'}[$_] . "]" } @$class));
- }
- }
-}
-
-1;
-
-=head1 BUGS
-
-None known
-
-=head1 AUTHOR
-
-Jonathan Kew L<Jonathan_Kew@sil.org>. See L<Font::TTF::Font> for copyright and
-licensing.
-
-=cut
-