Introduce src dir.

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

diff --git a/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Prop.pm b/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Prop.pm
new file mode 100644 (file)
index 0000000..b74c654
--- /dev/null
+++ b/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Prop.pm
@@ -0,0 +1,154 @@
+package Font::TTF::Prop;
+
+=head1 NAME
+
+Font::TTF::Prop - Glyph Properties table in a font
+
+=head1 DESCRIPTION
+
+=head1 INSTANCE VARIABLES
+
+=item version
+
+=item default
+
+=item lookup
+
+Hash of property values keyed by glyph number
+
+=item lookupFormat
+
+=head1 METHODS
+
+=cut
+
+use strict;
+use vars qw(@ISA);
+use Font::TTF::Utils;
+use Font::TTF::AATutils;
+use Font::TTF::Segarr;
+
+@ISA = qw(Font::TTF::Table);
+
+=head2 $t->read
+
+Reads the table into memory
+
+=cut
+
+sub read
+{
+    my ($self) = @_;
+    my ($dat, $fh);
+    my ($version, $lookupPresent, $default);
+    
+    $self->SUPER::read or return $self;
+
+    $fh = $self->{' INFILE'};
+    $fh->read($dat, 8);
+    ($version, $lookupPresent, $default) = TTF_Unpack("vSS", $dat);
+
+    if ($lookupPresent) {
+        my ($format, $lookup) = AAT_read_lookup($fh, 2, $self->{' LENGTH'} - 8, $default);
+        $self->{'lookup'} = $lookup;
+        $self->{'format'} = $format;
+    }
+
+    $self->{'version'} = $version;
+    $self->{'default'} = $default;
+
+    $self;
+}
+
+
+=head2 $t->out($fh)
+
+Writes the table to a file either from memory or by copying
+
+=cut
+
+sub out
+{
+    my ($self, $fh) = @_;
+    my ($default, $lookup);
+    
+    return $self->SUPER::out($fh) unless $self->{' read'};
+
+    $default = $self->{'default'};
+    $lookup = $self->{'lookup'};
+    $fh->print(TTF_Pack("vSS", $self->{'version'}, (defined $lookup ? 1 : 0), $default));
+
+    AAT_write_lookup($fh, $self->{'format'}, $lookup, 2, $default) if (defined $lookup);
+}
+
+=head2 $t->print($fh)
+
+Prints a human-readable representation of the table
+
+=cut
+
+sub print
+{
+    my ($self, $fh) = @_;
+    my ($lookup);
+    
+    $self->read;
+    
+    $fh = 'STDOUT' unless defined $fh;
+
+    $fh->printf("version %f\ndefault %04x # %s\n", $self->{'version'}, $self->{'default'}, meaning_($self->{'default'}));
+    $lookup = $self->{'lookup'};
+    if (defined $lookup) {
+        $fh->printf("format %d\n", $self->{'format'});
+        foreach (sort { $a <=> $b } keys %$lookup) {
+            $fh->printf("\t%d -> %04x # %s\n", $_, $lookup->{$_}, meaning_($lookup->{$_}));
+        }
+    }
+}
+
+sub meaning_
+{
+    my ($val) = @_;
+    my ($res);
+    
+    my @types = (
+        "Strong left-to-right",
+        "Strong right-to-left",
+        "Arabic letter",
+        "European number",
+        "European number separator",
+        "European number terminator",
+        "Arabic number",
+        "Common number separator",
+        "Block separator",
+        "Segment separator",
+        "Whitespace",
+        "Other neutral");
+    $res = $types[$val & 0x001f] or ("Undefined [" . ($val & 0x001f) . "]");
+    
+    $res .= ", floater" if $val & 0x8000;
+    $res .= ", hang left" if $val & 0x4000;
+    $res .= ", hang right" if $val & 0x2000;
+    $res .= ", attaches on right" if $val & 0x0080;
+    $res .= ", pair" if $val & 0x1000;
+    my $pairOffset = ($val & 0x0f00) >> 8;
+    $pairOffset = $pairOffset - 16 if $pairOffset > 7;
+    $res .= $pairOffset > 0 ? " +" . $pairOffset : $pairOffset < 0 ? " " . $pairOffset : "";
+    
+    $res;
+}
+
+1;
+
+
+=head1 BUGS
+
+None known
+
+=head1 AUTHOR
+
+Jonathan Kew L<Jonathan_Kew@sil.org>. See L<Font::TTF::Font> for copyright and
+licensing.
+
+=cut
+