Introduce src dir.

[librarian.git] / src / librarian / font-optimizer / ext / Font-TTF / lib / Font / TTF / Mort / Subtable.pm

diff --git a/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Mort/Subtable.pm b/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Mort/Subtable.pm
new file mode 100644 (file)
index 0000000..4dd26e0
--- /dev/null
+++ b/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Mort/Subtable.pm
@@ -0,0 +1,200 @@
+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
+