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Barcode.pm
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package PDF::Reuse::Barcode;
use 5.006;
use PDF::Reuse;
use strict;
use warnings;
our $VERSION = '0.07';
my ($str, $xsize, $ysize, $height, $sPtn, @sizes, $length, $value, %default);
my $qrcode = 0;
sub init
{ %default = ( value => '0000000',
x => 0,
y => 0,
size => 1,
xsize => 1,
ysize => 1,
rotate => 0,
background => '1 1 1',
graybackground => 1,
drawbackground => 1,
text => 'yes',
prolong => 0,
hide_asterisk => 0,
modulesize => 1,
qr_ecc => 'M',
qr_version => 1,
qr_padding => 0,
mode => 'graphic');
$str = '';
$xsize = 1;
$ysize = 1;
$height = 37;
$sPtn = '';
@sizes = ();
$length = 0;
$value = ''
}
sub general1
{ $default{'xsize'} = 1 unless ($default{'xsize'} != 0);
$default{'ysize'} = 1 unless ($default{'ysize'} != 0);
$default{'size'} = 1 unless ($default{'size'} != 0);
$xsize = $default{'xsize'} * $default{'size'};
$ysize = $default{'ysize'} * $default{'size'};
$str = "q\n";
$str .= "$xsize 0 0 $ysize $default{'x'} $default{'y'} cm\n";
if ($default{'rotate'} != 0)
{ my $radian = sprintf("%.6f", $default{'rotate'} / 57.2957795); # approx.
my $Cos = sprintf("%.6f", cos($radian));
my $Sin = sprintf("%.6f", sin($radian));
my $negSin = $Sin * -1;
$str .= "$Cos $Sin $negSin $Cos 0 0 cm\n";
}
}
sub general2
{ if ($qrcode)
{ my $m = $default{'modulesize'};
my @rows = split(/\n/, $sPtn);
$length = length($rows[0]) * $m;
$height = (1 + scalar(@rows)) * $m;
my $step = 1;
if ($default{'drawbackground'})
{ $str .= "$default{'graybackground'} g\n";
$str .= "0 0 $length $height re\n";
$str .= 'f*' . "\n";
$str .= "0 g\n";
}
prAdd($str);
@sizes = prFontSize(12);
$str = Qr( 0, $step, $sPtn);
}
else
{ $length = 20 + (length($sPtn) * 0.9);
my $height = 38;
my $step = 9;
my $prolong = 0;
if ($default{'prolong'} > 1)
{ $prolong = $default{'prolong'};
$height = 26 + ($prolong * 12);
}
if ($default{'drawbackground'})
{ $str .= "$default{'background'} rg\n";
$str .= "0 0 $length $height re\n";
$str .= 'f*' . "\n";
$str .= "0 0 0 rg\n";
}
prAdd($str);
@sizes = prFontSize(12);
$str = Bar( 10, $step, $sPtn);
$prolong--;
if ($prolong > 0)
{ $sPtn =~ s/G/1/go;
while ($prolong > 0)
{ if ($prolong > 1)
{ $prolong--;
$step += 12;
}
else
{ $step += (12 * $prolong);
$prolong = 0;
}
$str .= Bar( 10, $step, $sPtn);
}
}
}
$str .= "B\n";
prAdd($str);
}
sub general3
{ $str = "Q\n";
prAdd($str);
prFontSize($sizes[1]);
}
sub standardEnd
{ general2();
if ($default{'text'})
{ my @vec = prFont('C');
prFontSize(10);
my $textLength = length($value) * 6;
my $start = ($length - $textLength) / 2;
if ($qrcode) {
my $quiet = sprintf("%.2f", 4 * $default{'modulesize'});
prText($start, 0-$quiet, $value);
}
else {
prText($start, 1.5, $value);
}
prFont($vec[3]);
}
general3();
1;
}
sub Bar
{ my ($x, $y, $pattern) = @_;
my $yEnd = $y + 20;
my $yG = $y - 3;
my $string = "0.92 w\n 0 0 0 RG\n";
for (split(//, $pattern))
{ if ($_ eq '1')
{ $string .= "$x $yEnd m\n $x $y l\n";
}
elsif($_ eq 'G')
{ $string .= "$x $yEnd m\n $x $yG l\n";
}
$x = sprintf("%.2f", $x + 0.91);
}
return $string;
}
sub Qr
{ my ($x, $y, $pattern) = @_;
my $xStart = sprintf("%.2f", $x);
my $m = $default{'modulesize'};
my $s = $default{'qr_padding'};
my $space = sprintf('%.2f', $m + $s);#
my $string = "0.01 w\n 0 G\n";
my @rows = split(/\n/, $pattern);
for my $row (reverse @rows) {
my $yEnd = sprintf("%.2f", $y + $m);
for (split(//, $row))
{ my $xEnd = sprintf("%.2f", $x + $m);
if ($_ eq '1')
{ $string .= "$x $y $m $m re\nf\n";
}
$x = sprintf("%.2f", $x + $space);
}
$x = $xStart;
$y = sprintf("%.2f", $y + $space);
}
return $string;
}
sub Code128
{ eval 'require Barcode::Code128';
init();
my %param = @_;
for (keys %param)
{ my $lc = lc($_);
if (exists $default{$lc})
{ $default{$lc} = $param{$_};
}
else
{ print STDERR "Unknown parameter $_ , not used \n";
}
}
$value = $default{'value'};
general1();
my $oGDBar = Barcode::Code128->new();
if (! $oGDBar)
{ die "The translation of $value to barcodes didn't succeed, aborts\n";
}
else
{
$sPtn = $oGDBar->barcode($value);
$sPtn =~ tr/#/1/;
$sPtn =~ tr/ /0/;
}
standardEnd();
1;
}
sub Code39
{ eval 'require GD::Barcode::Code39';
init();
my %param = @_;
for (keys %param)
{ my $lc = lc($_);
if (exists $default{$lc})
{ $default{$lc} = $param{$_};
}
else
{ print STDERR "Unknown parameter $_ , not used \n";
}
}
$value = $default{'value'};
general1();
my $oGDBar = GD::Barcode::Code39->new($value);
if (! $oGDBar)
{ die "$GD::Barcode::Code39::errStr\n";
}
else
{ $sPtn = $oGDBar->barcode();
}
if ($default{hide_asterisk})
{ $value =~ s/^\*//;
$value =~ s/\*$//;
}
standardEnd();
1;
}
sub COOP2of5
{ eval 'require GD::Barcode::COOP2of5';
init();
my %param = @_;
for (keys %param)
{ my $lc = lc($_);
if (exists $default{$lc})
{ $default{$lc} = $param{$_};
}
else
{ print STDERR "Unknown parameter $_ , not used \n";
}
}
$value = $default{'value'};
general1();
my $oGDBar = GD::Barcode::COOP2of5->new($value);
if (! $oGDBar)
{ die "$GD::Barcode::COOP2of5::errStr\n";
}
else
{ $sPtn = $oGDBar->barcode();
}
standardEnd();
1;
}
sub IATA2of5
{ eval 'require GD::Barcode::IATA2of5';
init();
my %param = @_;
for (keys %param)
{ my $lc = lc($_);
if (exists $default{$lc})
{ $default{$lc} = $param{$_};
}
else
{ print STDERR "Unknown parameter $_ , not used \n";
}
}
$value = $default{'value'};
general1();
my $oGDBar = GD::Barcode::IATA2of5->new($value);
if (! $oGDBar)
{ die "$GD::Barcode::IATA2of5::errStr\n";
}
else
{ $sPtn = $oGDBar->barcode();
}
standardEnd();
1;
}
sub Industrial2of5
{ eval 'require GD::Barcode::Industrial2of5';
init();
my %param = @_;
for (keys %param)
{ my $lc = lc($_);
if (exists $default{$lc})
{ $default{$lc} = $param{$_};
}
else
{ print STDERR "Unknown parameter $_ , not used \n";
}
}
$value = $default{'value'};
general1();
my $oGDBar = GD::Barcode::Industrial2of5->new($value);
if (! $oGDBar)
{ die "$GD::Barcode::Industrial2of5::errStr\n";
}
else
{ $sPtn = $oGDBar->barcode();
}
standardEnd();
1;
}
sub Matrix2of5
{ eval 'require GD::Barcode::Matrix2of5';
init();
my %param = @_;
for (keys %param)
{ my $lc = lc($_);
if (exists $default{$lc})
{ $default{$lc} = $param{$_};
}
else
{ print STDERR "Unknown parameter $_ , not used \n";
}
}
$value = $default{'value'};
general1();
my $oGDBar = GD::Barcode::Matrix2of5->new($value);
if (! $oGDBar)
{ die "$GD::Barcode::Matrix2of5::errStr\n";
}
else
{ $sPtn = $oGDBar->barcode();
}
standardEnd();
1;
}
sub NW7
{ eval 'require GD::Barcode::NW7';
init();
my %param = @_;
for (keys %param)
{ my $lc = lc($_);
if (exists $default{$lc})
{ $default{$lc} = $param{$_};
}
else
{ print STDERR "Unknown parameter $_ , not used \n";
}
}
$value = $default{'value'};
general1();
my $oGDBar = GD::Barcode::NW7->new($value);
if (! $oGDBar)
{ die "$GD::Barcode::NW7::errStr\n";
}
else
{ $sPtn = $oGDBar->barcode();
}
standardEnd();
1;
}
sub EAN13
{ eval 'require GD::Barcode::EAN13';
init();
my %param = @_;
for (keys %param)
{ my $lc = lc($_);
if (exists $default{$lc})
{ $default{$lc} = $param{$_};
}
else
{ print STDERR "Unknown parameter $_ , not used \n";
}
}
$value = $default{'value'};
general1();
if ($value =~ m'([^0-9]+)'o)
{ die "Invalid character $1, aborts\n";
}
if (length($value) == 12)
{ $value .= GD::Barcode::EAN13::calcEAN13CD($value);
}
my $oGDBar = GD::Barcode::EAN13->new($value);
if (! $oGDBar)
{ die "$GD::Barcode::EAN13::errStr\n";
}
else
{ $sPtn = $oGDBar->barcode();
}
general2();
if ($default{'text'})
{ my $siffra = substr($value, 0, 1);
my $del1 = substr($value, 1, 6);
my $del2 = substr($value, 7, 6);
my @vec = prFont('C');
prFontSize(10);
prText(1, 2, $siffra);
prText(14, 2, $del1);
prText(56, 2, $del2);
prFont($vec[3]);
}
general3;
1;
}
sub EAN8
{ eval 'require GD::Barcode::EAN8';
init();
my %param = @_;
for (keys %param)
{ my $lc = lc($_);
if (exists $default{$lc})
{ $default{$lc} = $param{$_};
}
else
{ print STDERR "Unknown parameter $_ , not used \n";
}
}
$value = $default{'value'};
general1();
if ($value =~ m'([^0-9]+)'o)
{ die "Invalid character $1, aborts\n";
}
if (length($value) == 7)
{ $value .= GD::Barcode::EAN8::calcEAN8CD($value);
}
my $oGDBar = GD::Barcode::EAN8->new($value);
if (! $oGDBar)
{ die "$GD::Barcode::EAN8::errStr\n";
}
else
{ $sPtn = $oGDBar->barcode();
}
general2();
if ($default{'text'})
{ my $del1 = substr($value, 0, 4);
my $del2 = substr($value, 4, 4);
my @vec = prFont('C');
prFontSize(10);
prText(14, 2, $del1);
prText(42.5, 2, $del2);
prFont($vec[3]);
}
general3;
1;
}
sub ITF
{ eval 'require GD::Barcode::ITF';
init();
my %param = @_;
for (keys %param)
{ my $lc = lc($_);
if (exists $default{$lc})
{ $default{$lc} = $param{$_};
}
else
{ print STDERR "Unknown parameter $_ , not used \n";
}
}
$value = $default{'value'};
general1();
my $oGDBar = GD::Barcode::ITF->new($value);
if (! $oGDBar)
{ die "$GD::Barcode::ITF::errStr\n";
}
else
{ $sPtn = $oGDBar->barcode();
}
standardEnd();
1;
}
sub UPCA
{ eval 'require GD::Barcode::UPCA';
init();
my %param = @_;
for (keys %param)
{ my $lc = lc($_);
if (exists $default{$lc})
{ $default{$lc} = $param{$_};
}
else
{ print STDERR "Unknown parameter $_ , not used \n";
}
}
$value = $default{'value'};
general1();
if ($value =~ m'([^0-9]+)'o)
{ die "Invalid character $1, aborts\n";
}
if (length($value) == 11)
{ $value .= GD::Barcode::UPCA::calcUPCACD($value);
}
my $oGDBar = GD::Barcode::UPCA->new($value);
if (! $oGDBar)
{ die "$GD::Barcode::UPCA::errStr\n";
}
else
{ $sPtn = $oGDBar->barcode();
}
general2();
if ($default{'text'})
{ my $siffra1 = substr($value, 0, 1);
my $del1 = substr($value, 1, 5);
my $del2 = substr($value, 6, 5);
my $siffra2 = substr($value, 11, 1);
my @vec = prFont('C');
prFontSize(10);
prText(2, 2, $siffra1);
prText(20, 2, $del1);
prText(56, 2, $del2);
prText(97, 2, $siffra2);
prFont($vec[3]);
}
general3;
1;
}
sub UPCE
{ eval 'require GD::Barcode::UPCE';
init();
my %param = @_;
for (keys %param)
{ my $lc = lc($_);
if (exists $default{$lc})
{ $default{$lc} = $param{$_};
}
else
{ print STDERR "Unknown parameter $_ , not used \n";
}
}
$value = $default{'value'};
general1();
if ($value =~ m'([^0-9]+)'o)
{ die "Invalid character $1, aborts\n";
}
if (length($value) == 6)
{ $value = '0' . $value;
my $cd = GD::Barcode::UPCE::calcUPCECD($value);
$value .= $cd;
}
elsif (length($value) == 7)
{ my $cd = GD::Barcode::UPCE::calcUPCECD($value);
$value .= $cd;
}
my $oGDBar = GD::Barcode::UPCE->new($value);
if (! $oGDBar)
{ die "$GD::Barcode::UPCE::errStr\n";
}
else
{ $sPtn = $oGDBar->barcode();
}
general2();
if ($default{'text'})
{ my $siffra = substr($value, 0, 1);
my $del1 = substr($value, 1, 6);
my $del2 = substr($value, 7, 1);
my @vec = prFont('C');
prFontSize(10);
prText(2, 2, $siffra);
prText(14, 2, $del1);
prText(58, 2, $del2);
prFont($vec[3]);
}
general3;
1;
}
sub QRcode
{ eval 'require GD::Barcode::QRcode';
$qrcode = 1;
init();
my %param = @_;
for (keys %param)
{ my $lc = lc($_);
if (exists $default{$lc})
{ $default{$lc} = $param{$_};
}
else
{ print STDERR "Unknown parameter $_ , not used \n";
}
}
$value = $default{'value'};
general1();
my $oGDBar = GD::Barcode::QRcode->new($value, {Ecc => $default{'qr_ecc'}, Version=>$default{'qr_version'}, ModuleSize => $default{'size'}});
if (! $oGDBar)
{ die "$GD::Barcode::QRcode::errStr\n";
}
else
{ $sPtn = $oGDBar->barcode();
}
standardEnd();
1;
}
1;
__END__
=head1 NAME
PDF::Reuse::Barcode - Create barcodes for PDF documents with PDF::Reuse
=head1 SYNOPSIS
use PDF::Reuse;
use PDF::Reuse::Barcode;
use strict;
prFile('bars.pdf');
PDF::Reuse::Barcode::ITF (x => 70,
y => 530,
value => '0123456789',
prolong => 2.96);
prEnd();
=head1 DESCRIPTION
This is a sub-module to PDF::Reuse. It creates barcode "images" to be used in
PDF documents. It uses GD::Barcode and its sub-modules: GD::Barcode::Code39,
COOP2of5, EAN13 and so on, to calculate the barcode pattern. For Code128 it uses
Barcode::Code128.
Normally the barcodes are displayed on a white background and with the characters
under the bars. You can rotate the "image", make it smaller or bigger, prolong the
bars and change the background.
(But then, don't forget to test that your barcode scanner still understands it.)
If you don't change the size of the "image", the bars are approximately 24 pixels
high (the guard bars a few pixels longer) and the box/background is 38 pixels high
and something like 20 pixels wider than the barcodes. The text under the bars are
10 pixels high.
=head1 FUNCTIONS
All functions are called in a similar way. Just replace 'ITF' in the example
under SYNOPSIS with some other function name and let the value parameter follow
the rules of that function.
=head2 Code128
Creates Code128 barcodes with the help of Barcode::Code128. Look at that module
for further information.
# code128.pl
use PDF::Reuse;
use PDF::Reuse::Barcode;
prFile('code128.pdf');
PDF::Reuse::Barcode::Code128(x => 100,
y => 730,
value => '00000123455555555558');
prEnd();
The constants CodeA, FNC1, SHIFT and so on, are not imported, but if you really
need them (??), try to use the character values instead.
CodeA 0xf4 CodeB 0xf5 CodeC 0xf6
FNC1 0xf7 FNC2 0xf8 FNC3 0xf9
FNC4 0xfa Shift 0xfb StartA 0xfc
StartB 0xfd StartC 0xfe Stop 0xff
# unusual.pl
# Instead of FCN1
use PDF::Reuse;
use PDF::Reuse::Barcode;
prFile('unusual.pdf');
PDF::Reuse::Barcode::Code128(x => 100,
y => 430,
value => chr(0xf7) . '00000123455555555558',
text => 0 );
# Font and font size has to be chosen
# Text could be put manually at x => 110
# y => 431
# The size, xSize, ySize and rotation doesn't influence the text
# in this case ...
prEnd();
=head2 Code39
Translates the characters 0-9, A-Z, '-', '*', '+', '$', '%', '/', '.' and ' '
to a barcode pattern.
In Code39, the asterisk is used as the start and stop bar, but PDF::Reuse::Barcode
expects you to supply the asterisks. If you do not want them to display in the
text version, pass the option "hide_asterisk" as in
PDF::Reuse::Barcode::Code39 (x => 10,
y => 20,
value => '*62002*',
hide_asterisk => 1);
=head2 COOP2of5
Creates COOP2of5 barcodes from a string consisting of the numeric characters 0-9
=head2 EAN13
Creates EAN13 barcodes from a string of 12 or 13 digits.
The check number (the 13:th digit) is calculated if not supplied.
If there is given check number it is not controlled.
=head2 EAN8
Translates a string of 7 or 8 digits to EAN8 barcodes.
The check number (the 8:th digit) is calculated if not supplied. If there is
given check number it is not controlled.
=head2 IATA2of5
Creates IATA2of5 barcodes from a string consisting of the numeric characters 0-9
=head2 Industrial2of5
Creates Industrial2of5 barcodes from a string consisting of the numeric characters 0-9
=head2 ITF
Translates the characters 0-9 to a barcodes. These barcodes
could also be called 'Interleaved2of5'.
=head2 Matrix2of5
Creates Matrix2of5 barcodes from a string consisting of the numeric characters 0-9
=head2 NW7
Creates a NW7 barcodes from a string consisting of the numeric characters 0-9
=head2 QRcode
Creates QRcodes from numeric, alphanumeric, binary or Kanji data (or a
mixture of these).
=head2 UPCA
Translates a string of 11 or 12 digits to UPCA barcodes. The check number (the 12:th
digit) is calculated if not supplied. If there is given check number it is not
controlled.
=head2 UPCE
Translates a string of 6, 7 or 8 digits to UPCE barcodes. If the string is 6 digits
long, '0' is added first in the string. The check number (the 8:th digit) is
calculated if not supplied. If there is given check number it is not controlled.
=head1 COMMON PARAMETERS
All functions accepts these parameters.
The parameters should be put in a hash.
All of them are optional, except 'value'.
=head2 value
A string of characters which will be translated to barcodes.
=head2 x
Number of pixels along the x-axis where to put the lower left "corner" of the
barcode image.
=head2 y
Number of pixels along the y-axis where to put the lower left "corner" of the
barcode image.
=head2 size
A (decimal) number. If you define a number for this parameter, all sizes along
the x- and y-axes will multiplied by this number. Also the text under the bars
will be scaled.
For QRcodes, the square of this number determines the number of 'modulesize'
rectangles used to represent a single module (so 1=1, 2=4, 3=9, etc).
=head2 xSize
A (decimal) number. If you define a number for this parameter, all sizes along
the x-axis will multiplied by this number. The text under the bars are also
affected.
=head2 ySize
A (decimal) number. If you define a number for this parameter, all sizes along
the y-axis will multiplied by this number. The text under the bars are also
affected.
=head2 prolong
0 or a decimal number greater than 1. Prolongs the bars with this factor.
In reality tells the module to prolong the bars by repeatedly rewriting the barcode
pattern.
=head2 text
Normally this parameter is 'yes', which will cause the digits to be written as
text under the barcodes. If this parameter is '' or 0, the text will be suppressed.
=head2 drawbackground
By default this parameter is 1, which will cause the barcodes to be drawn on
a prepared background. If this parameter is '' or 0, the current background
will be used, and the module will not try change it.
For QRcodes, this will use the 'graybackground' color to draw a rectangle
including the "quiet zone" around the QRcode.
=head2 background
Normally it is '1 1 1', which will draw a white background/box around the barcodes.
Choose another RGB-combination if you want another color.
For QRcodes, see 'graybackground'.
=head2 rotate
A degree to rotate the barcode image counter-clockwise
=head1 QRCODE SPECIFIC PARAMETERS
When generating QRcodes, some of the common parameters are ignored
and some QRcode specific parameters are available for modifying
features of the QRcode. QRcodes are generated with a Gray colorspace.
=head2 graybackground
Normally it is 1, which will draw a white background/box around the QRcodes.
Choose another value between 0 and 1 (inclusive) to specify a different shade of
gray for the background.
=head2 modulesize
Defaults to 1. Sets the size in Postscript points of the rectangle drawn for
a single rectangle when drawing a QRcode.
=head2 qr_ecc
Defaults to 'M'. Sets the error correction mode for the QRcode and can be
set to L (Low), M (Medium), Q (Quartile), or H (High).
=head2 qr_version
Defaults to 1. Set to an integer value from 1 to 40 to select the size
and data capacity of the QRcode.
=head2 qr_padding
Defaults to 0. Sets an amount of padding to insert between modules in the
QRcode (may be useful if prints do not scan well).
=head1 EXAMPLE
use PDF::Reuse;
use PDF::Reuse::Barcode;
use strict;
prFile('bars.pdf');
#################################################################
# First a rectangle is drawn in the upper part of the page
#################################################################
my $str = "q\n"; # save the graphic state
$str .= "0.9 0.5 0.5 rg\n"; # a fill color
$str .= "10 400 440 410 re\n"; # a rectangle
$str .= "b\n"; # fill (and a little more)
$str .= "Q\n"; # restore the graphic state
prAdd($str);
#################################
# An image with prolonged bars,
#################################
PDF::Reuse::Barcode::ITF (x => 50,
y => 700,
value => '0123456789',
prolong => 2.96);
#############################
# A magnified barcode image
#############################
PDF::Reuse::Barcode::EAN13 (x => 250,
y => 700,
value => '012345678901',
size => 1.5);
######################################################
# A barcode image magnified a little along the y-axis
######################################################
PDF::Reuse::Barcode::EAN8 (x => 150,
y => 500,
value => '0123456',
ySize => 1.2);
################################
# With the box in a light color
################################
PDF::Reuse::Barcode::Code39 (x => 70,
y => 300,
value => '*THIS IS SOMETHING*',
background => '0.99 0.97 0.97',
hide_asterisk => 1);