File Coverage

blib/lib/PDF/Builder/Resource/ColorSpace/Indexed/Hue.pm

Criterion	Covered	Total	%
statement	18	39	46.1
branch	0	4	0.0
condition			n/a
subroutine	6	7	85.7
pod	1	1	100.0
total	25	51	49.0

package PDF::Builder::Resource::ColorSpace::Indexed::Hue;

use base 'PDF::Builder::Resource::ColorSpace::Indexed';

use strict;
use warnings;
#no warnings qw[ deprecated recursion uninitialized ];

our $VERSION = '3.023'; # VERSION
our $LAST_UPDATE = '3.021'; # manually update whenever code is changed

use PDF::Builder::Basic::PDF::Utils;
use PDF::Builder::Util;
use Scalar::Util qw(weaken);

=head1 NAME

PDF::Builder::Resource::ColorSpace::Indexed::Hue - colorspace support for Device RGB. Inherits from L

=cut

sub new {
    my ($class, $pdf) = @_;

    $class = ref $class if ref $class;
    my $self = $class->SUPER::new($pdf, pdfkey());
    $pdf->new_obj($self) unless $self->is_obj($pdf);
    $self->{' apipdf'} = $pdf;
    weaken $self->{' apipdf'};
    my $csd = PDFDict();
    $pdf->new_obj($csd);
    $csd->{'Filter'} = PDFArray(PDFName('FlateDecode'));

    ## $csd->{'WhitePoint'} = PDFArray(map { PDFNum($_) } (0.95049, 1, 1.08897));
    ## $csd->{'BlackPoint'} = PDFArray(map { PDFNum($_) } (0, 0, 0));
    ## $csd->{'Gamma'} = PDFArray(map { PDFNum($_) } (2.22218, 2.22218, 2.22218));

    $csd->{' stream'} = '';

    my %cc = ();

    foreach my $s (4,3,2,1) {
        foreach my $v (4,3) {
            foreach my $r (0..31) {
                $csd->{' stream'} .= pack('CCC', map { $_*255 } namecolor('!'.sprintf('%02X', $r*255/31).sprintf('%02X', $s*255/4).sprintf('%02X', $v*255/4)));
            }
        }
    }

    $csd->{' stream'} .= "\x00" x 768;
    $csd->{' stream'} = substr($csd->{' stream'}, 0, 768);

    $self->add_elements(PDFName('DeviceRGB'), PDFNum(255), $csd);
    $self->{' csd'} = $csd;

    return $self;
}

1;