X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/e316fc14bef26f958937aec0e6854b61f71a3b34..09dded3d8606e8e4406fffcf477ceb4a1c97fee2:/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Kern/StateTable.pm

diff --git a/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Kern/StateTable.pm b/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Kern/StateTable.pm
new file mode 100644
index 0000000..51d650a
--- /dev/null
+++ b/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Kern/StateTable.pm
@@ -0,0 +1,143 @@
+package Font::TTF::Kern::StateTable;
+
+=head1 NAME
+
+Font::TTF::Kern::StateTable - State Table Kern subtable for AAT
+
+=head1 METHODS
+
+=cut
+
+use strict;
+use vars qw(@ISA);
+use Font::TTF::Utils;
+use Font::TTF::AATutils;
+use Font::TTF::Kern::Subtable;
+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, $fh) = @_;
+    my ($dat);
+    
+    my $stTableStart = $fh->tell();
+
+    my ($classes, $states, $entries) = AAT_read_state_table($fh, 0);
+
+    foreach (@$entries) {
+        my $flags = $_->{'flags'};
+        delete $_->{'flags'};
+        $_->{'push'} = 1        if $flags & 0x8000;
+        $_->{'noAdvance'} = 1    if $flags & 0x4000;
+        $flags &= ~0xC000;
+        if ($flags != 0) {
+            my $kernList = [];
+            $fh->seek($stTableStart + $flags, IO::File::SEEK_SET);
+            while (1) {
+                $fh->read($dat, 2);
+                my $k = TTF_Unpack("s", $dat);
+                push @$kernList, ($k & ~1);
+                last if ($k & 1) != 0;
+            }
+            $_->{'kernList'} = $kernList;
+        }
+    }
+
+    $self->{'classes'} = $classes;
+    $self->{'states'} = $states;
+    $self->{'entries'} = $entries;
+
+    $fh->seek($stTableStart - 8 + $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
+{
+}
+
+sub dumpXML
+{
+    my ($self, $fh) = @_;
+    
+    $fh->printf("<classes>\n");
+    $self->dumpClasses($self->{'classes'}, $fh);
+    $fh->printf("</classes>\n");
+
+    $fh->printf("<states>\n");
+    my $states = $self->{'states'};
+    foreach (0 .. $#$states) {
+        $fh->printf("<state index=\"%s\">\n", $_);
+        my $members = $states->[$_];
+        foreach (0 .. $#$members) {
+            my $m = $members->[$_];
+            $fh->printf("<m index=\"%s\" nextState=\"%s\"", $_, $m->{'nextState'});
+            $fh->printf(" push=\"1\"")        if $m->{'push'};
+            $fh->printf(" noAdvance=\"1\"")    if $m->{'noAdvance'};
+            if (exists $m->{'kernList'}) {
+                $fh->printf(">");
+                foreach (@{$m->{'kernList'}}) {
+                    $fh->printf("<kern v=\"%s\"/>", $_);
+                }
+                $fh->printf("</m>\n");
+            }
+            else {
+                $fh->printf("/>\n");
+            }
+        }
+        $fh->printf("</state>\n");
+    }
+    $fh->printf("</states>\n");
+}
+
+sub type
+{
+    return 'kernStateTable';
+}
+
+1;
+
+=head1 BUGS
+
+None known
+
+=head1 AUTHOR
+
+Jonathan Kew L<Jonathan_Kew@sil.org>. See L<Font::TTF::Font> for copyright and
+licensing.
+
+=cut
+