X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/2ada86c7bb585d419b95c95ce42d5b7a9fa45475..fefdce4e24f9e397df5538fe6e7f54b5ece4d841:/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Cvt_.pm

diff --git a/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Cvt_.pm b/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Cvt_.pm
new file mode 100644
index 0000000..2a79f5b
--- /dev/null
+++ b/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/Cvt_.pm
@@ -0,0 +1,81 @@
+package Font::TTF::Cvt_;
+
+=head1 NAME
+
+Font::TTF::Cvt_ - Control Value Table in a TrueType font
+
+=head1 DESCRIPTION
+
+This is a minimal class adding nothing beyond a table, but is a repository
+for cvt type information for those processes brave enough to address hinting.
+
+=head1 INSTANCE VARIABLES
+
+=over 4
+
+=item val
+
+This is an array of CVT values. Thus access to the CVT is via:
+
+    $f->{'cvt_'}{'val'}[$num];
+
+=back    
+
+=head1 METHODS
+
+=cut
+
+use strict;
+use vars qw(@ISA $VERSION);
+use Font::TTF::Utils;
+
+@ISA = qw(Font::TTF::Table);
+
+$VERSION = 0.0001;
+
+=head2 $t->read
+
+Reads the CVT table into both the tables C<' dat'> variable and the C<val>
+array.
+
+=cut
+
+sub read
+{
+    my ($self) = @_;
+
+    $self->read_dat || return undef;
+    $self->{' read'} = 1;
+    $self->{'val'} = [TTF_Unpack("s*", $self->{' dat'})];
+    $self;
+}
+
+
+=head2 $t->update
+
+Updates the RAM file copy C<' dat'> to be the same as the array.
+
+=cut
+
+sub update
+{
+    my ($self) = @_;
+
+    return undef unless ($self->{' read'} && $#{$self->{'val'}} >= 0);
+    $self->{' dat'} = TTF_Pack("s*", @{$self->{'val'}});
+    $self;
+}
+
+1;
+
+=head1 BUGS
+
+None known
+
+=head1 AUTHOR
+
+Martin Hosken Martin_Hosken@sil.org. See L<Font::TTF::Font> for copyright and
+licensing.
+
+=cut
+