/usr/share/perl5/PDF/API2/Resource/ColorSpace/Separation.pm is in libpdf-api2-perl 2.025-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 | package PDF::API2::Resource::ColorSpace::Separation;
our $VERSION = '2.025'; # VERSION
use base 'PDF::API2::Resource::ColorSpace';
use PDF::API2::Basic::PDF::Utils;
use PDF::API2::Util;
no warnings qw[ deprecated recursion uninitialized ];
=head1 NAME
PDF::API2::Resource::ColorSpace::Separation - Support for color space separations
=head1 METHODS
=over
=item $cs = PDF::API2::Resource::ColorSpace::Separation->new $pdf, $key, %parameters
Returns a new colorspace object.
=cut
sub new {
my ($class,$pdf,$key,@opts)=@_;
my ($name,@clr)=@opts;
$class = ref $class if ref $class;
$self=$class->SUPER::new($pdf,$key,@opts);
$pdf->new_obj($self) unless($self->is_obj($pdf));
$self->{' apipdf'}=$pdf;
my $fct=PDFDict();
my $csname='DeviceRGB';
$clr[0]=lc($clr[0]);
$self->color(@clr);
if($clr[0]=~/^[a-z\#\!]+/) {
# colorname or #! specifier
# with rgb target colorspace
# namecolor returns always a RGB
my ($r,$g,$b)=namecolor($clr[0]);
$fct->{FunctionType}=PDFNum(0);
$fct->{Size}=PDFArray(PDFNum(2));
$fct->{Range}=PDFArray(map {PDFNum($_)} ($r,1,$g,1,$b,1));
$fct->{Domain}=PDFArray(PDFNum(0),PDFNum(1));
$fct->{BitsPerSample}=PDFNum(8);
$fct->{' stream'}="\xff\xff\xff\x00\x00\x00";
} elsif($clr[0]=~/^[\%]+/) {
# % specifier
# with cmyk target colorspace
my ($c,$m,$y,$k)=namecolor_cmyk($clr[0]);
$csname='DeviceCMYK';
$fct->{FunctionType}=PDFNum(0);
$fct->{Size}=PDFArray(PDFNum(2));
$fct->{Range}=PDFArray(map {PDFNum($_)} (0,$c,0,$m,0,$y,0,$k));
$fct->{Domain}=PDFArray(PDFNum(0),PDFNum(1));
$fct->{BitsPerSample}=PDFNum(8);
$fct->{' stream'}="\x00\x00\x00\x00\xff\xff\xff\xff";
} elsif(scalar @clr == 1) {
# grey color spec.
while($clr[0]>1) { $clr[0]/=255; }
# adjusted for 8/16/32bit spec.
my $g=$clr[0];
$csname='DeviceGray';
$fct->{FunctionType}=PDFNum(0);
$fct->{Size}=PDFArray(PDFNum(2));
$fct->{Range}=PDFArray(map {PDFNum($_)} (0,$g));
$fct->{Domain}=PDFArray(PDFNum(0),PDFNum(1));
$fct->{BitsPerSample}=PDFNum(8);
$fct->{' stream'}="\xff\x00";
} elsif(scalar @clr == 3) {
# legacy rgb color-spec (0 <= x <= 1)
my ($r,$g,$b)=@clr;
$fct->{FunctionType}=PDFNum(0);
$fct->{Size}=PDFArray(PDFNum(2));
$fct->{Range}=PDFArray(map {PDFNum($_)} ($r,1,$g,1,$b,1));
$fct->{Domain}=PDFArray(PDFNum(0),PDFNum(1));
$fct->{BitsPerSample}=PDFNum(8);
$fct->{' stream'}="\xff\xff\xff\x00\x00\x00";
} elsif(scalar @clr == 4) {
# legacy cmyk color-spec (0 <= x <= 1)
my ($c,$m,$y,$k)=@clr;
$csname='DeviceCMYK';
$fct->{FunctionType}=PDFNum(0);
$fct->{Size}=PDFArray(PDFNum(2));
$fct->{Range}=PDFArray(map {PDFNum($_)} (0,$c,0,$m,0,$y,0,$k));
$fct->{Domain}=PDFArray(PDFNum(0),PDFNum(1));
$fct->{BitsPerSample}=PDFNum(8);
$fct->{' stream'}="\x00\x00\x00\x00\xff\xff\xff\xff";
} else {
die 'invalid color specification.';
}
$self->type($csname);
$pdf->new_obj($fct);
$self->add_elements(PDFName('Separation'), PDFName($name), PDFName($csname), $fct);
$self->tintname($name);
return($self);
}
=item $cs = PDF::API2::Resource::ColorSpace::Separation->new_api $api, $name
Returns a separation color-space object. This method is different from 'new' that
it needs an PDF::API2-object rather than a Text::PDF::File-object.
=cut
sub new_api {
my ($class,$api,@opts)=@_;
my $obj=$class->new($api->{pdf},pdfkey(),@opts);
$self->{' api'}=$api;
return($obj);
}
=item @color = $res->color
Returns the base-color of the Separation-Colorspace.
=cut
sub color {
my $self=shift @_;
if(scalar @_ >0 && defined($_[0])) {
$self->{' color'}=[@_];
}
return(@{$self->{' color'}});
}
=item $tintname = $res->tintname $tintname
Returns the tint-name of the Separation-Colorspace.
=cut
sub tintname {
my $self=shift @_;
if(scalar @_ >0 && defined($_[0])) {
$self->{' tintname'}=[@_];
}
return(@{$self->{' tintname'}});
}
sub param {
my $self=shift @_;
return($_[0]);
}
=back
=cut
1;
|