151 lines
2.9 KiB
Perl
151 lines
2.9 KiB
Perl
package Font::TTF::AATKern;
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=head1 NAME
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Font::TTF::AATKern - AAT Kern table
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=head1 METHODS
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=cut
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use strict;
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use vars qw(@ISA);
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use Font::TTF::Utils;
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use Font::TTF::AATutils;
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use Font::TTF::Kern::Subtable;
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@ISA = qw(Font::TTF::Table);
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=head2 $t->read
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Reads the table into memory
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=cut
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sub read
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{
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my ($self) = @_;
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$self->SUPER::read or return $self;
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my ($dat, $fh, $numSubtables);
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$fh = $self->{' INFILE'};
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$fh->read($dat, 8);
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($self->{'version'}, $numSubtables) = TTF_Unpack("vL", $dat);
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my $subtables = [];
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foreach (1 .. $numSubtables) {
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my $subtableStart = $fh->tell();
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$fh->read($dat, 8);
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my ($length, $coverage, $tupleIndex) = TTF_Unpack("LSS", $dat);
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my $type = $coverage & 0x00ff;
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my $subtable = Font::TTF::Kern::Subtable->create($type, $coverage, $length);
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$subtable->read($fh);
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$subtable->{'tupleIndex'} = $tupleIndex if $subtable->{'variation'};
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$subtable->{' PARENT'} = $self;
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push @$subtables, $subtable;
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}
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$self->{'subtables'} = $subtables;
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$self;
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}
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=head2 $t->out($fh)
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Writes the table to a file either from memory or by copying
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=cut
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sub out
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{
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my ($self, $fh) = @_;
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return $self->SUPER::out($fh) unless $self->{' read'};
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my $subtables = $self->{'subtables'};
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$fh->print(TTF_Pack("vL", $self->{'version'}, scalar @$subtables));
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foreach (@$subtables) {
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$_->out($fh);
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}
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}
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=head2 $t->print($fh)
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Prints a human-readable representation of the table
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=cut
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sub print
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{
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my ($self, $fh) = @_;
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$self->read unless $self->{' read'};
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$fh = 'STDOUT' unless defined $fh;
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$fh->printf("version %f\n", $self->{'version'});
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my $subtables = $self->{'subtables'};
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foreach (@$subtables) {
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$_->print($fh);
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}
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}
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sub dumpXML
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{
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my ($self, $fh) = @_;
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$self->read unless $self->{' read'};
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my $post = $self->{' PARENT'}->{'post'};
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$post->read;
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$fh = 'STDOUT' unless defined $fh;
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$fh->printf("<kern version=\"%f\">\n", $self->{'version'});
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my $subtables = $self->{'subtables'};
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foreach (@$subtables) {
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$fh->printf("<%s", $_->type);
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$fh->printf(" vertical=\"1\"") if $_->{'vertical'};
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$fh->printf(" crossStream=\"1\"") if $_->{'crossStream'};
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$fh->printf(" variation=\"1\"") if $_->{'variation'};
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$fh->printf(" tupleIndex=\"%s\"", $_->{'tupleIndex'}) if exists $_->{'tupleIndex'};
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$fh->printf(">\n");
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$_->dumpXML($fh);
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$fh->printf("</%s>\n", $_->type);
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}
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$fh->printf("</kern>\n");
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}
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1;
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=head1 BUGS
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None known
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=head1 AUTHOR
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Jonathan Kew L<http://scripts.sil.org/FontUtils>.
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=head1 LICENSING
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Copyright (c) 1998-2016, SIL International (http://www.sil.org)
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This module is released under the terms of the Artistic License 2.0.
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For details, see the full text of the license in the file LICENSE.
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=cut
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