good pdf, some general updates

[librarian.git] / librarian / font-optimizer / ext / Font-TTF / lib / Font / TTF / Kern / ClassArray.pm

diff --git a/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Kern/ClassArray.pm b/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Kern/ClassArray.pm
new file mode 100644 (file)
index 0000000..ddc630e
--- /dev/null
+++ b/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Kern/ClassArray.pm
@@ -0,0 +1,153 @@
+package Font::TTF::Kern::ClassArray;
+
+=head1 NAME
+
+Font::TTF::Kern::ClassArray - ClassArray Kern Subtable for AAT
+
+=head1 METHODS
+
+=cut
+
+use strict;
+use vars qw(@ISA);
+use Font::TTF::Utils;
+use Font::TTF::AATutils;
+use IO::File;
+
+@ISA = qw(Font::TTF::Kern::Subtable);
+
+sub new
+{
+    my ($class) = @_;
+    my ($self) = {};
+    
+    $class = ref($class) || $class;
+    bless $self, $class;
+}
+
+=head2 $t->read
+
+Reads the table into memory
+
+=cut
+
+sub read
+{
+    my ($self, $fh) = @_;
+ 
+    my $subtableStart = $fh->tell() - 8;
+    my $dat;
+    $fh->read($dat, 8);
+    my ($rowWidth, $leftClassTable, $rightClassTable, $array) = unpack("nnnn", $dat);
+
+    $fh->seek($subtableStart + $leftClassTable, IO::File::SEEK_SET);
+    $fh->read($dat, 4);
+    my ($firstGlyph, $nGlyphs) = unpack("nn", $dat);
+    $fh->read($dat, $nGlyphs * 2);
+    my $leftClasses = [];
+    foreach (TTF_Unpack("S*", $dat)) {
+        push @{$leftClasses->[($_ - $array) / $rowWidth]}, $firstGlyph++;
+    }
+    
+    $fh->seek($subtableStart + $rightClassTable, IO::File::SEEK_SET);
+    $fh->read($dat, 4);
+    ($firstGlyph, $nGlyphs) = unpack("nn", $dat);
+    $fh->read($dat, $nGlyphs * 2);
+    my $rightClasses = [];
+    foreach (TTF_Unpack("S*", $dat)) {
+        push @{$rightClasses->[$_ / 2]}, $firstGlyph++;
+    }
+    
+    $fh->seek($subtableStart + $array, IO::File::SEEK_SET);
+    $fh->read($dat, $self->{'length'} - $array);
+
+    my $offset = 0;
+    my $kernArray = [];
+    while ($offset < length($dat)) {
+        push @$kernArray, [ TTF_Unpack("s*", substr($dat, $offset, $rowWidth)) ];
+        $offset += $rowWidth;
+    }    
+
+    $self->{'leftClasses'} = $leftClasses;
+    $self->{'rightClasses'} = $rightClasses;
+    $self->{'kernArray'} = $kernArray;
+    
+    $fh->seek($subtableStart + $self->{'length'}, IO::File::SEEK_SET);
+    
+    $self;
+}
+
+=head2 $t->out_sub($fh)
+
+Writes the table to a file
+
+=cut
+
+sub out_sub
+{
+}
+
+=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 $fh;
+
+    
+}
+
+sub dumpXML
+{
+    my ($self, $fh) = @_;
+    my $post = $self->post();
+    
+    $fh = 'STDOUT' unless defined $fh;
+    $fh->printf("<leftClasses>\n");
+    $self->dumpClasses($self->{'leftClasses'}, $fh);    
+    $fh->printf("</leftClasses>\n");
+
+    $fh->printf("<rightClasses>\n");
+    $self->dumpClasses($self->{'rightClasses'}, $fh);    
+    $fh->printf("</rightClasses>\n");
+    
+    $fh->printf("<kernArray>\n");
+    my $kernArray = $self->{'kernArray'};
+    foreach (0 .. $#$kernArray) {
+        $fh->printf("<row index=\"%s\">\n", $_);
+        my $row = $kernArray->[$_];
+        foreach (0 .. $#$row) {
+            $fh->printf("<val index=\"%s\" v=\"%s\"/>\n", $_, $row->[$_]);
+        }
+        $fh->printf("</row>\n");
+    }
+    $fh->printf("</kernArray>\n");
+}
+
+sub type
+{
+    return 'kernClassArray';
+}
+
+
+
+1;
+
+=head1 BUGS
+
+None known
+
+=head1 AUTHOR
+
+Jonathan Kew L<Jonathan_Kew@sil.org>. See L<Font::TTF::Font> for copyright and
+licensing.
+
+=cut
+