Font::TTF::Cvt_ - Control Value Table in a TrueType font

Font-TTF documentation Contained in the Font-TTF distribution.

Index

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NAME

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Font::TTF::Cvt_ - Control Value Table in a TrueType font

DESCRIPTION

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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.

INSTANCE VARIABLES

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val

This is an array of CVT values. Thus access to the CVT is via:

    $f->{'cvt_'}{'val'}[$num];

METHODS

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$t->read

Reads the CVT table into both the tables ' dat' variable and the val array.

$t->update

Updates the RAM file copy ' dat' to be the same as the array.

BUGS

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None known

AUTHOR

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Martin Hosken Martin_Hosken@sil.org. See Font::TTF::Font for copyright and licensing.

Font-TTF documentation Contained in the Font-TTF distribution. 
package Font::TTF::Cvt_;


use strict;
use vars qw(@ISA $VERSION);
use Font::TTF::Utils;

@ISA = qw(Font::TTF::Table);

$VERSION = 0.0001;


sub read
{
    my ($self) = @_;

    $self->read_dat || return undef;
    $self->{' read'} = 1;
    $self->{'val'} = [TTF_Unpack("s*", $self->{' dat'})];
    $self;
}



sub update
{
    my ($self) = @_;

    return undef unless ($self->{' read'} && $#{$self->{'val'}} >= 0);
    $self->{' dat'} = TTF_Pack("s*", @{$self->{'val'}});
    $self;
}

1;