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package PDF::API2::Resource::CIDFont::TrueType;
use base 'PDF::API2::Resource::CIDFont';
use strict;
no warnings qw[ deprecated recursion uninitialized ];
our $VERSION = '2.033'; # VERSION
use PDF::API2::Basic::PDF::Utils;
use PDF::API2::Resource::CIDFont::TrueType::FontFile;
use PDF::API2::Util;
=head1 NAME
PDF::API2::Resource::CIDFont::TrueType - TrueType font support
=head1 METHODS
=over
=item $font = PDF::API2::Resource::CIDFont::TrueType->new $pdf, $file, %options
Returns a font object.
Defined Options:
-encode ... specify fonts encoding for non-utf8 text.
-nosubset ... disables subsetting.
=cut
sub new {
my ($class,$pdf,$file,@opts) = @_;
my %opts=();
%opts=@opts if((scalar @opts)%2 == 0);
$opts{-encode}||='latin1';
my ($ff,$data)=PDF::API2::Resource::CIDFont::TrueType::FontFile->new($pdf,$file,@opts);
$class = ref $class if ref $class;
my $self=$class->SUPER::new($pdf,$data->{apiname}.pdfkey());
$pdf->new_obj($self) if(defined($pdf) && !$self->is_obj($pdf));
$self->{' data'}=$data;
my $des=$self->descrByData;
$self->{'BaseFont'} = PDFName($self->fontname);
my $de=$self->{' de'};
$de->{'FontDescriptor'} = $des;
$de->{'Subtype'} = PDFName($self->iscff ? 'CIDFontType0' : 'CIDFontType2');
## $de->{'BaseFont'} = PDFName(pdfkey().'+'.($self->fontname));
$de->{'BaseFont'} = PDFName($self->fontname);
$de->{'DW'} = PDFNum($self->missingwidth);
if($opts{-noembed} != 1)
{
$des->{$self->data->{iscff} ? 'FontFile3' : 'FontFile2'}=$ff;
}
unless($self->issymbol) {
$self->encodeByName($opts{-encode});
$self->data->{encode}=$opts{-encode};
$self->data->{decode}='ident';
}
if($opts{-nosubset}) {
$self->data->{nosubset}=1;
}
$self->{' ff'} = $ff;
$pdf->new_obj($ff);
$self->{-dokern}=1 if($opts{-dokern});
return($self);
}
sub fontfile { return( $_[0]->{' ff'} ); }
sub fontobj { return( $_[0]->data->{obj} ); }
sub wxByCId
{
my $self=shift @_;
my $g=shift @_;
my $t = $self->fontobj->{'hmtx'}->read->{'advance'}[$g];
my $w;
if(defined $t)
{
$w = int($t*1000/$self->data->{upem});
}
else
{
$w = $self->missingwidth;
}
return($w);
}
sub haveKernPairs
{
my $self = shift @_;
return($self->fontfile->haveKernPairs(@_));
}
sub kernPairCid
{
my $self = shift @_;
return($self->fontfile->kernPairCid(@_));
}
sub subsetByCId
{
my $self = shift @_;
return if($self->iscff);
my $g = shift @_;
$self->fontfile->subsetByCId($g);
}
sub subvec
{
my $self = shift @_;
return(1) if($self->iscff);
my $g = shift @_;
$self->fontfile->subvec($g);
}
sub glyphNum { return ( $_[0]->fontfile->glyphNum ); }
sub outobjdeep
{
my ($self, $fh, $pdf, %opts) = @_;
my $notdefbefore=1;
my $wx=PDFArray();
$self->{' de'}->{'W'} = $wx;
my $ml;
foreach my $w (0..(scalar @{$self->data->{g2u}} - 1 ))
{
if($self->subvec($w) && $notdefbefore==1)
{
$notdefbefore=0;
$ml=PDFArray();
$wx->add_elements(PDFNum($w),$ml);
# $ml->add_elements(PDFNum($self->data->{wx}->[$w]));
$ml->add_elements(PDFNum($self->wxByCId($w)));
}
elsif($self->subvec($w) && $notdefbefore==0)
{
$notdefbefore=0;
# $ml->add_elements(PDFNum($self->data->{wx}->[$w]));
$ml->add_elements(PDFNum($self->wxByCId($w)));
}
else
{
$notdefbefore=1;
}
# optimization for cjk
#if($self->subvec($w) && $notdefbefore==1 && $self->data->{wx}->[$w]!=$self->missingwidth) {
# $notdefbefore=0;
# $ml=PDFArray();
# $wx->add_elements(PDFNum($w),$ml);
# $ml->add_elements(PDFNum($self->data->{wx}->[$w]));
#} elsif($self->subvec($w) && $notdefbefore==0 && $self->data->{wx}->[$w]!=$self->missingwidth) {
# $notdefbefore=0;
# $ml->add_elements(PDFNum($self->data->{wx}->[$w]));
#} else {
# $notdefbefore=1;
#}
}
$self->SUPER::outobjdeep($fh, $pdf, %opts);
}
=back
=cut
1;
|
