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package PDF::API2::Resource::XObject::Form::BarCode; |
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use base 'PDF::API2::Resource::XObject::Form::Hybrid'; |
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use strict; |
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use warnings; |
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our $VERSION = '2.044'; # VERSION |
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use PDF::API2::Util; |
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use PDF::API2::Basic::PDF::Utils; |
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=head1 NAME |
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PDF::API2::Resource::XObject::Form::BarCode - Base class for one-dimensional barcodes |
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=head1 METHODS |
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=over |
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=item $barcode = PDF::API2::Resource::XObject::Form::BarCode->new($pdf, %options) |
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Creates a barcode form resource. |
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=cut |
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sub new { |
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my ($class, $pdf, %options) = @_; |
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my $self = $class->SUPER::new($pdf); |
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$self->{' bfont'} = $options{'-font'}; |
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$self->{' umzn'} = $options{'-umzn'} || 0; # (u)pper (m)ending (z)o(n)e |
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$self->{' lmzn'} = $options{'-lmzn'} || 0; # (l)ower (m)ending (z)o(n)e |
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$self->{' zone'} = $options{'-zone'} || 0; # barcode height |
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$self->{' quzn'} = $options{'-quzn'} || 0; # (qu)iet (z)o(n)e |
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$self->{' ofwt'} = $options{'-ofwt'} || 0.01; # (o)ver(f)low (w)id(t)h |
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$self->{' fnsz'} = $options{'-fnsz'}; # (f)o(n)t(s)i(z)e |
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$self->{' spcr'} = $options{'-spcr'} || ''; # (sp)a(c)e(r) between chars in label |
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$self->{' mils'} = $options{'-mils'} || 1000/72; # single barcode unit width. 1 mil = 1/1000 of one inch. 1000/72 - for backward compatibility |
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$self->{' color'} = $options{'-color'} || 'black'; # barcode color |
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return $self; |
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} |
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my %bar_widths = ( |
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0 => 0, |
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1 => 1, 'a' => 1, 'A' => 1, |
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2 => 2, 'b' => 2, 'B' => 2, |
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3 => 3, 'c' => 3, 'C' => 3, |
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4 => 4, 'd' => 4, 'D' => 4, |
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5 => 5, 'e' => 5, 'E' => 5, |
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6 => 6, 'f' => 6, 'F' => 6, |
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7 => 7, 'g' => 7, 'G' => 7, |
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8 => 8, 'h' => 8, 'H' => 8, |
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9 => 9, 'i' => 9, 'I' => 9, |
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); |
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sub encode { |
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my ($self, $string) = @_; |
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my @bars = map { [ $self->encode_string($_), $_ ] } split //, $string; |
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return @bars; |
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} |
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sub encode_string { |
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my ($self, $string) = @_; |
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my $bar; |
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foreach my $character (split //, $string) { |
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$bar .= $self->encode_char($character); |
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} |
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return $bar; |
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} |
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sub drawbar { |
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my $self = shift(); |
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my @sets = @{shift()}; |
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my $caption = shift(); |
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$self->fillcolor($self->{' color'}); |
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$self->strokecolor($self->{' color'}); |
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$self->linedash(); |
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my $x = $self->{' quzn'}; |
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my $is_space_next = 0; |
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my $wdt_factor = $self->{' mils'} / 1000 * 72; |
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foreach my $set (@sets) { |
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my ($code, $label); |
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if (ref($set)) { |
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($code, $label) = @{$set}; |
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} |
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else { |
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$code = $set; |
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$label = undef; |
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} |
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my $code_width = 0; |
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my ($font_size, $y_label); |
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foreach my $bar (split //, $code) { |
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my $bar_width = $bar_widths{$bar} * $wdt_factor; |
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my ($y0, $y1); |
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if ($bar =~ /[0-9]/) { |
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$y0 = $self->{' quzn'} + $self->{' lmzn'}; |
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$y1 = $self->{' quzn'} + $self->{' lmzn'} + $self->{' zone'} + $self->{' umzn'}; |
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$y_label = $self->{' quzn'}; |
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if ($self->{' fnsz'} and $self->{' lmzn'} < $self->{' fnsz'}) { |
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$y_label -= $self->{' fnsz'} * 0.8 - $self->{' lmzn'}; |
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} |
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$font_size = $self->{' fnsz'} || $self->{' lmzn'}; |
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} |
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elsif ($bar =~ /[a-z]/) { |
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$y0 = $self->{' quzn'}; |
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$y1 = $self->{' quzn'} + $self->{' lmzn'} + $self->{' zone'} + $self->{' umzn'}; |
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$y_label = $self->{' quzn'} + $self->{' lmzn'} + $self->{' zone'} + $self->{' umzn'} + 2; |
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$font_size = $self->{' fnsz'} || $self->{' umzn'}; |
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} |
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elsif ($bar =~ /[A-Z]/) { |
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$y0 = $self->{' quzn'}; |
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$y1 = $self->{' quzn'} + $self->{' lmzn'} + $self->{' zone'}; |
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$font_size = $self->{' fnsz'} || $self->{' umzn'}; |
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$y_label = $self->{' quzn'} + $self->{' lmzn'} + $self->{' zone'} + $self->{' umzn'} - $font_size; |
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} |
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else { |
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$y0 = $self->{' quzn'} + $self->{' lmzn'}; |
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$y1 = $self->{' quzn'} + $self->{' lmzn'} + $self->{' zone'} + $self->{' umzn'}; |
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$y_label = $self->{' quzn'}; |
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$font_size = $self->{' fnsz'} || $self->{' lmzn'}; |
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} |
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unless ($is_space_next or $bar eq '0') { |
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$self->linewidth($bar_width - $self->{' ofwt'}); |
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$self->move($x + $code_width + $bar_width / 2, $y0); |
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$self->line($x + $code_width + $bar_width / 2, $y1); |
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$self->stroke(); |
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} |
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$is_space_next = not $is_space_next; |
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$code_width += $bar_width; |
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} |
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if (defined($label) and $self->{' lmzn'}) { |
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1
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$label = join($self->{' spcr'}, split //, $label); |
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1
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$self->textstart(); |
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$self->translate($x + ($code_width / 2), $y_label); |
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$self->font($self->{' bfont'}, $font_size); |
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$self->text_center($label); |
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$self->textend(); |
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} |
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151
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$x += $code_width; |
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} |
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154
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$x += $self->{' quzn'}; |
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156
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if (defined $caption) { |
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my $font_size = $self->{' fnsz'} || $self->{' lmzn'}; |
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my $y_caption = $self->{' quzn'} - $font_size; |
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$self->textstart(); |
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$self->translate($x / 2, $y_caption); |
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$self->font($self->{' bfont'}, $font_size); |
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$self->text_center($caption); |
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$self->textend(); |
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} |
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166
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6
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12
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$self->{' w'} = $x; |
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6
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21
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$self->{' h'} = 2 * $self->{' quzn'} + $self->{' lmzn'} + $self->{' zone'} + $self->{' umzn'}; |
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6
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69
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$self->bbox(0, 0, $self->{' w'}, $self->{' h'}); |
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} |
170
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171
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=item $width = $barcode->width() |
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173
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=cut |
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175
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sub width { |
176
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0
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0
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1
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my $self = shift(); |
177
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0
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return $self->{' w'}; |
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} |
179
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180
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=item $height = $barcode->height() |
181
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182
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=cut |
183
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184
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sub height { |
185
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0
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0
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1
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my $self = shift(); |
186
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0
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return $self->{' h'}; |
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} |
188
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189
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=back |
190
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|
|
|
|
191
|
|
|
|
|
|
|
=cut |
192
|
|
|
|
|
|
|
|
193
|
|
|
|
|
|
|
1; |