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Mort	[ DIR ]	drwxr-xr-x
Woff	[ DIR ]	drwxr-xr-x
AATKern.pm	2.89 KB	-rw-r--r--
AATutils.pm	23.07 KB	-rw-r--r--
Anchor.pm	4.8 KB	-rw-r--r--
Bsln.pm	3.72 KB	-rw-r--r--
Changes_old.txt	2.17 KB	-rw-r--r--
Cmap.pm	23.91 KB	-rw-r--r--
Coverage.pm	8.38 KB	-rw-r--r--
Cvt_.pm	1.4 KB	-rw-r--r--
DSIG.pm	1.97 KB	-rw-r--r--
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Fdsc.pm	2.18 KB	-rw-r--r--
Feat.pm	4.44 KB	-rw-r--r--
Fmtx.pm	1.96 KB	-rw-r--r--
Font.pm	29.07 KB	-rw-r--r--
Fpgm.pm	1.66 KB	-rw-r--r--
GDEF.pm	13.64 KB	-rw-r--r--
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Glyf.pm	3.68 KB	-rw-r--r--
Glyph.pm	25.25 KB	-rw-r--r--
GrFeat.pm	8.33 KB	-rw-r--r--
Hdmx.pm	3.12 KB	-rw-r--r--
Head.pm	5.84 KB	-rw-r--r--
Hhea.pm	3.54 KB	-rw-r--r--
Hmtx.pm	4.61 KB	-rw-r--r--
Kern.pm	8.5 KB	-rw-r--r--
LTSH.pm	1.67 KB	-rw-r--r--
Loca.pm	4.72 KB	-rw-r--r--
Manual.pod	8.96 KB	-rw-r--r--
Maxp.pm	4.17 KB	-rw-r--r--
Mort.pm	2.1 KB	-rw-r--r--
Name.pm	27.78 KB	-rw-r--r--
OS_2.pm	38.07 KB	-rw-r--r--
OTTags.pm	42.94 KB	-rw-r--r--
OldCmap.pm	9.66 KB	-rw-r--r--
OldMort.pm	25.53 KB	-rw-r--r--
PCLT.pm	2.49 KB	-rw-r--r--
PSNames.pm	132.77 KB	-rw-r--r--
Post.pm	9.53 KB	-rw-r--r--
Prep.pm	1.61 KB	-rw-r--r--
Prop.pm	3.47 KB	-rw-r--r--
Segarr.pm	9.53 KB	-rw-r--r--
Silf.pm	28.24 KB	-rw-r--r--
Sill.pm	3.2 KB	-rw-r--r--
Table.pm	11.15 KB	-rw-r--r--
Ttc.pm	3.87 KB	-rw-r--r--
Ttopen.pm	44.24 KB	-rw-r--r--
Useall.pm	2.16 KB	-rw-r--r--
Utils.pm	18.51 KB	-rw-r--r--
Vhea.pm	3.57 KB	-rw-r--r--
Vmtx.pm	1.66 KB	-rw-r--r--
Win32.pm	1.08 KB	-rw-r--r--
Woff.pm	1.09 KB	-rw-r--r--
XMLparse.pm	5.49 KB	-rw-r--r--

Code Editor : Hhea.pm

package Font::TTF::Hhea;

=head1 NAME

Font::TTF::Hhea - Horizontal Header table

=head1 DESCRIPTION

This is a simplte table with just standards specified instance variables

=head1 INSTANCE VARIABLES

version
    Ascender
    Descender
    LineGap
    advanceWidthMax
    minLeftSideBearing
    minRightSideBearing
    xMaxExtent
    caretSlopeRise
    caretSlopeRun
    metricDataFormat
    numberOfHMetrics

=head1 METHODS

=cut

use strict;
use vars qw(@ISA %fields @field_info);

require Font::TTF::Table;
use Font::TTF::Utils;

@ISA = qw(Font::TTF::Table);
@field_info = (
    'version' => 'v',
    'Ascender' => 's',
    'Descender' => 's',
    'LineGap' => 's',
    'advanceWidthMax' => 'S',
    'minLeftSideBearing' => 's',
    'minRightSideBearing' => 's',
    'xMaxExtent' => 's',
    'caretSlopeRise' => 's',
    'caretSlopeRun' => 's',
    'metricDataFormat' => '+10s',
    'numberOfHMetrics' => 'S');

sub init
{
    my ($k, $v, $c, $i);
    for ($i = 0; $i < $#field_info; $i += 2)
    {
        ($k, $v, $c) = TTF_Init_Fields($field_info[$i], $c, $field_info[$i + 1]);
        next unless defined $k && $k ne "";
        $fields{$k} = $v;
    }
}

=head2 $t->read

Reads the table into memory as instance variables

=cut

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

$self->SUPER::read or return $self;
    init unless defined $fields{'Ascender'};
    $self->{' INFILE'}->read($dat, 36);

TTF_Read_Fields($self, $dat, \%fields);
    $self;
}

=head2 $t->out($fh)

Writes the table to a file either from memory or by copying.

=cut

sub out
{
    my ($self, $fh) = @_;

return $self->SUPER::out($fh) unless $self->{' read'};

$self->{'numberOfHMetrics'} = $self->{' PARENT'}{'hmtx'}->numMetrics || $self->{'numberOfHMetrics'};
    $fh->print(TTF_Out_Fields($self, \%fields, 36));
    $self;
}

=head2 $t->minsize()

Returns the minimum size this table can be. If it is smaller than this, then the table
must be bad and should be deleted or whatever.

=cut

sub minsize
{
    return 36;
}

=head2 $t->update

Updates various parameters in the hhea table from the hmtx table.

=cut

sub update
{
    my ($self) = @_;
    my ($hmtx) = $self->{' PARENT'}{'hmtx'};
    my ($glyphs);
    my ($num, $res);
    my ($i, $maw, $mlsb, $mrsb, $mext, $aw, $lsb, $ext);

return undef unless ($self->SUPER::update);
    return undef unless (defined $hmtx && defined $self->{' PARENT'}{'loca'});

$hmtx->read->update;
    $self->{' PARENT'}{'loca'}->read->update;
    $glyphs = $self->{' PARENT'}{'loca'}{'glyphs'};
    $num = $self->{' PARENT'}{'maxp'}{'numGlyphs'};

for ($i = 0; $i < $num; $i++)
    {
        $aw = $hmtx->{'advance'}[$i];
        $lsb = $hmtx->{'lsb'}[$i];
        if (defined $glyphs->[$i])
        { $ext = $lsb + $glyphs->[$i]->read->{'xMax'} - $glyphs->[$i]{'xMin'}; }
        else
        { $ext = $aw; }
        $maw = $aw if ($aw > $maw);
        $mlsb = $lsb if ($lsb < $mlsb or $i == 0);
        $mrsb = $aw - $ext if ($aw - $ext < $mrsb or $i == 0);
        $mext = $ext if ($ext > $mext);
    }
    $self->{'advanceWidthMax'} = $maw;
    $self->{'minLeftSideBearing'} = $mlsb;
    $self->{'minRightSideBearing'} = $mrsb;
    $self->{'xMaxExtent'} = $mext;
    $self->{'numberOfHMetrics'} = $hmtx->numMetrics;
    $self;
}

=head1 BUGS

None known

=head1 AUTHOR

Martin Hosken L<http://scripts.sil.org/FontUtils>.

=head1 LICENSING

This module is released under the terms of the Artistic License 2.0. 
For details, see the full text of the license in the file LICENSE.

=cut

${this.title}

Code Editor : Hhea.pm