C4/Labels/Label.pm

   1 package C4::Labels::Label;
   2
   3 use strict;
   4 use warnings;
   5
   6 use Text::Wrap;
   7 use Algorithm::CheckDigits;
   8 use Text::CSV_XS;
   9 use Data::Dumper;
  10
  11 use C4::Context;
  12 use C4::Debug;
  13 use C4::Biblio;
  14
  15 BEGIN {
  16     use version; our $VERSION = qv('1.0.0_1');
  17 }
  18
  19 my $possible_decimal = qr/\d{3,}(?:\.\d+)?/; # at least three digits for a DDCN
  20
  21 sub _check_params {
  22     my $given_params = {};
  23     my $exit_code = 0;
  24     my @valid_label_params = (
  25         'batch_id',
  26         'item_number',
  27         'llx',
  28         'lly',
  29         'height',
  30         'width',
  31         'top_text_margin',
  32         'left_text_margin',
  33         'barcode_type',
  34         'printing_type',
  35         'guidebox',
  36         'font',
  37         'font_size',
  38         'callnum_split',
  39         'justify',
  40         'format_string',
  41         'text_wrap_cols',
  42         'barcode',
  43     );
  44     if (scalar(@_) >1) {
  45         $given_params = {@_};
  46         foreach my $key (keys %{$given_params}) {
  47             if (!(grep m/$key/, @valid_label_params)) {
  48                 warn sprintf('Unrecognized parameter type of "%s".', $key);
  49                 $exit_code = 1;
  50             }
  51         }
  52     }
  53     else {
  54         if (!(grep m/$_/, @valid_label_params)) {
  55             warn sprintf('Unrecognized parameter type of "%s".', $_);
  56             $exit_code = 1;
  57         }
  58     }
  59     return $exit_code;
  60 }
  61
  62 sub _guide_box {
  63     my ( $llx, $lly, $width, $height ) = @_;
  64     my $obj_stream = "q\n";                            # save the graphic state
  65     $obj_stream .= "0.5 w\n";                          # border line width
  66     $obj_stream .= "1.0 0.0 0.0  RG\n";                # border color red
  67     $obj_stream .= "1.0 1.0 1.0  rg\n";                # fill color white
  68     $obj_stream .= "$llx $lly $width $height re\n";    # a rectangle
  69     $obj_stream .= "B\n";                              # fill (and a little more)
  70     $obj_stream .= "Q\n";                              # restore the graphic state
  71     return $obj_stream;
  72 }
  73
  74 sub _get_label_item {
  75     my $item_number = shift;
  76     my $barcode_only = shift || 0;
  77     my $dbh = C4::Context->dbh;
  78 #        FIXME This makes for a very bulky data structure; data from tables w/duplicate col names also gets overwritten.
  79 #        Something like this, perhaps, but this also causes problems because we need more fields sometimes.
  80 #        SELECT i.barcode, i.itemcallnumber, i.itype, bi.isbn, bi.issn, b.title, b.author
  81     my $sth = $dbh->prepare("SELECT bi.*, i.*, b.* FROM items AS i, biblioitems AS bi ,biblio AS b WHERE itemnumber=? AND i.biblioitemnumber=bi.biblioitemnumber AND bi.biblionumber=b.biblionumber;");
  82     $sth->execute($item_number);
  83     if ($sth->err) {
  84         warn sprintf('Database returned the following error: %s', $sth->errstr);
  85     }
  86     my $data = $sth->fetchrow_hashref;
  87     # Replaced item's itemtype with the more user-friendly description...
  88     my $sth1 = $dbh->prepare("SELECT itemtype,description FROM itemtypes WHERE itemtype = ?");
  89     $sth1->execute($data->{'itemtype'});
  90     if ($sth1->err) {
  91         warn sprintf('Database returned the following error: %s', $sth1->errstr);
  92     }
  93     my $data1 = $sth1->fetchrow_hashref;
  94     $data->{'itemtype'} = $data1->{'description'};
  95     $data->{'itype'} = $data1->{'description'};
  96     $barcode_only ? return $data->{'barcode'} : return $data;
  97 }
  98
  99 sub _get_text_fields {
 100     my $format_string = shift;
 101     my $csv = Text::CSV_XS->new({allow_whitespace => 1});
 102     my $status = $csv->parse($format_string);
 103     my @sorted_fields = map {{ 'code' => $_, desc => $_ }}
 104                         map { $_ eq 'callnumber' ? 'itemcallnumber' : $_ } # see bug 5653
 105                         $csv->fields();
 106     my $error = $csv->error_input();
 107     warn sprintf('Text field sort failed with this error: %s', $error) if $error;
 108     return \@sorted_fields;
 109 }
 110
 111
 112 sub _split_lccn {
 113     my ($lccn) = @_;
 114     $_ = $lccn;
 115     # lccn examples: 'HE8700.7 .P6T44 1983', 'BS2545.E8 H39 1996';
 116     my (@parts) = m/
 117         ^([a-zA-Z]+)      # HE          # BS
 118         (\d+(?:\.\d)*)    # 8700.7      # 2545
 119         \s*
 120         (\.*\D+\d*)       # .P6         # .E8
 121         \s*
 122         (.*)              # T44 1983    # H39 1996   # everything else (except any bracketing spaces)
 123         \s*
 124         /x;
 125     unless (scalar @parts)  {
 126         warn sprintf('regexp failed to match string: %s', $_);
 127         push @parts, $_;     # if no match, just push the whole string.
 128     }
 129     push @parts, split /\s+/, pop @parts;   # split the last piece into an arbitrary number of pieces at spaces
 130     $debug and warn "split_lccn array: ", join(" | ", @parts), "\n";
 131     return @parts;
 132 }
 133
 134 sub _split_ddcn {
 135     my ($ddcn) = @_;
 136     $_ = $ddcn;
 137     s/\///g;   # in theory we should be able to simply remove all segmentation markers and arrive at the correct call number...
 138     my (@parts) = m/
 139         ^([-a-zA-Z]*\s?(?:$possible_decimal)?) # R220.3  CD-ROM 787.87 # will require extra splitting
 140         \s+
 141         (.+)                               # H2793Z H32 c.2 EAS # everything else (except bracketing spaces)
 142         \s*
 143         /x;
 144     unless (scalar @parts)  {
 145         warn sprintf('regexp failed to match string: %s', $_);
 146         push @parts, $_;     # if no match, just push the whole string.
 147     }
 148
 149     if ($parts[0] =~ /^([-a-zA-Z]+)\s?($possible_decimal)$/) {
 150           shift @parts;         # pull off the mathching first element, like example 1
 151         unshift @parts, $1, $2; # replace it with the two pieces
 152     }
 153
 154     push @parts, split /\s+/, pop @parts;   # split the last piece into an arbitrary number of pieces at spaces
 155     $debug and print STDERR "split_ddcn array: ", join(" | ", @parts), "\n";
 156     return @parts;
 157 }
 158
 159 ## NOTE: Custom call number types go here. It may be necessary to create additional splitting algorithms if some custom call numbers
 160 ##      cannot be made to work here. Presently this splits standard non-ddcn, non-lccn fiction and biography call numbers.
 161
 162 sub _split_ccn {
 163     my ($fcn) = @_;
 164     my @parts = ();
 165     # Split call numbers based on spaces
 166     push @parts, split /\s+/, $fcn;   # split the call number into an arbitrary number of pieces at spaces
 167     if ($parts[-1] !~ /^.*\d-\d.*$/ && $parts[-1] =~ /^(.*\d+)(\D.*)$/) {
 168         pop @parts;            # pull off the matching last element
 169         push @parts, $1, $2;    # replace it with the two pieces
 170     }
 171     unless (scalar @parts) {
 172         warn sprintf('regexp failed to match string: %s', $_);
 173         push (@parts, $_);
 174     }
 175     $debug and print STDERR "split_ccn array: ", join(" | ", @parts), "\n";
 176     return @parts;
 177 }
 178
 179 sub _get_barcode_data {
 180     my ( $f, $item, $record ) = @_;
 181     my $kohatables = _desc_koha_tables();
 182     my $datastring = '';
 183     my $match_kohatable = join(
 184         '|',
 185         (
 186             @{ $kohatables->{'biblio'} },
 187             @{ $kohatables->{'biblioitems'} },
 188             @{ $kohatables->{'items'} }
 189         )
 190     );
 191     FIELD_LIST:
 192     while ($f) {
 193         my $err = '';
 194         $f =~ s/^\s?//;
 195         if ( $f =~ /^'(.*)'.*/ ) {
 196             # single quotes indicate a static text string.
 197             $datastring .= $1;
 198             $f = $';
 199             next FIELD_LIST;
 200         }
 201         elsif ( $f =~ /^($match_kohatable).*/ ) {
 202             if ($item->{$f}) {
 203                 $datastring .= $item->{$f};
 204             } else {
 205                 $debug and warn sprintf("The '%s' field contains no data.", $f);
 206             }
 207             $f = $';
 208             next FIELD_LIST;
 209         }
 210         elsif ( $f =~ /^([0-9a-z]{3})(\w)(\W?).*?/ ) {
 211             my ($field,$subf,$ws) = ($1,$2,$3);
 212             my $subf_data;
 213             my ($itemtag, $itemsubfieldcode) = &GetMarcFromKohaField("items.itemnumber",'');
 214             my @marcfield = $record->field($field);
 215             if(@marcfield) {
 216                 if($field eq $itemtag) {  # item-level data, we need to get the right item.
 217                     ITEM_FIELDS:
 218                     foreach my $itemfield (@marcfield) {
 219                         if ( $itemfield->subfield($itemsubfieldcode) eq $item->{'itemnumber'} ) {
 220                             if ($itemfield->subfield($subf)) {
 221                                 $datastring .= $itemfield->subfield($subf) . $ws;
 222                             }
 223                             else {
 224                                 warn sprintf("The '%s' field contains no data.", $f);
 225                             }
 226                             last ITEM_FIELDS;
 227                         }
 228                     }
 229                 } else {  # bib-level data, we'll take the first matching tag/subfield.
 230                     if ($marcfield[0]->subfield($subf)) {
 231                         $datastring .= $marcfield[0]->subfield($subf) . $ws;
 232                     }
 233                     else {
 234                         warn sprintf("The '%s' field contains no data.", $f);
 235                     }
 236                 }
 237             }
 238             $f = $';
 239             next FIELD_LIST;
 240         }
 241         else {
 242             warn sprintf('Failed to parse label format string: %s', $f);
 243             last FIELD_LIST;    # Failed to match
 244         }
 245     }
 246     return $datastring;
 247 }
 248
 249 sub _desc_koha_tables {
 250         my $dbh = C4::Context->dbh();
 251         my $kohatables;
 252         for my $table ( 'biblio','biblioitems','items' ) {
 253                 my $sth = $dbh->column_info(undef,undef,$table,'%');
 254                 while (my $info = $sth->fetchrow_hashref()){
 255                         push @{$kohatables->{$table}} , $info->{'COLUMN_NAME'} ;
 256                 }
 257                 $sth->finish;
 258         }
 259         return $kohatables;
 260 }
 261
 262 ### This series of functions calculates the position of text and barcode on individual labels
 263 ### Please *do not* add printing types which are non-atomic. Instead, build code which calls the necessary atomic printing types to form the non-atomic types. See the ALT type
 264 ### in labels/label-create-pdf.pl as an example.
 265 ### NOTE: Each function must be passed seven parameters and return seven even if some are 0 or undef
 266
 267 sub _BIB {
 268     my $self = shift;
 269     my $line_spacer = ($self->{'font_size'} * 1);       # number of pixels between text rows (This is actually leading: baseline to baseline minus font size. Recommended starting point is 20% of font size.).
 270     my $text_lly = ($self->{'lly'} + ($self->{'height'} - $self->{'top_text_margin'}));
 271     return $self->{'llx'}, $text_lly, $line_spacer, 0, 0, 0, 0;
 272 }
 273
 274 sub _BAR {
 275     my $self = shift;
 276     my $barcode_llx = $self->{'llx'} + $self->{'left_text_margin'};     # this places the bottom left of the barcode the left text margin distance to right of the the left edge of the label ($llx)
 277     my $barcode_lly = $self->{'lly'} + $self->{'top_text_margin'};      # this places the bottom left of the barcode the top text margin distance above the bottom of the label ($lly)
 278     my $barcode_width = 0.8 * $self->{'width'};                         # this scales the barcode width to 80% of the label width
 279     my $barcode_y_scale_factor = 0.01 * $self->{'height'};              # this scales the barcode height to 10% of the label height
 280     return 0, 0, 0, $barcode_llx, $barcode_lly, $barcode_width, $barcode_y_scale_factor;
 281 }
 282
 283 sub _BIBBAR {
 284     my $self = shift;
 285     my $barcode_llx = $self->{'llx'} + $self->{'left_text_margin'};     # this places the bottom left of the barcode the left text margin distance to right of the the left edge of the label ($self->{'llx'})
 286     my $barcode_lly = $self->{'lly'} + $self->{'top_text_margin'};      # this places the bottom left of the barcode the top text margin distance above the bottom of the label ($lly)
 287     my $barcode_width = 0.8 * $self->{'width'};                         # this scales the barcode width to 80% of the label width
 288     my $barcode_y_scale_factor = 0.01 * $self->{'height'};              # this scales the barcode height to 10% of the label height
 289     my $line_spacer = ($self->{'font_size'} * 1);       # number of pixels between text rows (This is actually leading: baseline to baseline minus font size. Recommended starting point is 20% of font size.).
 290     my $text_lly = ($self->{'lly'} + ($self->{'height'} - $self->{'top_text_margin'}));
 291     $debug and warn  "Label: llx $self->{'llx'}, lly $self->{'lly'}, Text: lly $text_lly, $line_spacer, Barcode: llx $barcode_llx, lly $barcode_lly, $barcode_width, $barcode_y_scale_factor\n";
 292     return $self->{'llx'}, $text_lly, $line_spacer, $barcode_llx, $barcode_lly, $barcode_width, $barcode_y_scale_factor;
 293 }
 294
 295 sub _BARBIB {
 296     my $self = shift;
 297     my $barcode_llx = $self->{'llx'} + $self->{'left_text_margin'};                             # this places the bottom left of the barcode the left text margin distance to right of the the left edge of the label ($self->{'llx'})
 298     my $barcode_lly = ($self->{'lly'} + $self->{'height'}) - $self->{'top_text_margin'};        # this places the bottom left of the barcode the top text margin distance below the top of the label ($self->{'lly'})
 299     my $barcode_width = 0.8 * $self->{'width'};                                                 # this scales the barcode width to 80% of the label width
 300     my $barcode_y_scale_factor = 0.01 * $self->{'height'};                                      # this scales the barcode height to 10% of the label height
 301     my $line_spacer = ($self->{'font_size'} * 1);                               # number of pixels between text rows (This is actually leading: baseline to baseline minus font size. Recommended starting point is 20% of font size.).
 302     my $text_lly = (($self->{'lly'} + $self->{'height'}) - $self->{'top_text_margin'} - (($self->{'lly'} + $self->{'height'}) - $barcode_lly));
 303     return $self->{'llx'}, $text_lly, $line_spacer, $barcode_llx, $barcode_lly, $barcode_width, $barcode_y_scale_factor;
 304 }
 305
 306 sub new {
 307     my ($invocant, %params) = @_;
 308     my $type = ref($invocant) || $invocant;
 309     my $self = {
 310         batch_id                => $params{'batch_id'},
 311         item_number             => $params{'item_number'},
 312         llx                     => $params{'llx'},
 313         lly                     => $params{'lly'},
 314         height                  => $params{'height'},
 315         width                   => $params{'width'},
 316         top_text_margin         => $params{'top_text_margin'},
 317         left_text_margin        => $params{'left_text_margin'},
 318         barcode_type            => $params{'barcode_type'},
 319         printing_type           => $params{'printing_type'},
 320         guidebox                => $params{'guidebox'},
 321         font                    => $params{'font'},
 322         font_size               => $params{'font_size'},
 323         callnum_split           => $params{'callnum_split'},
 324         justify                 => $params{'justify'},
 325         format_string           => $params{'format_string'},
 326         text_wrap_cols          => $params{'text_wrap_cols'},
 327         barcode                 => 0,
 328     };
 329     if ($self->{'guidebox'}) {
 330         $self->{'guidebox'} = _guide_box($self->{'llx'}, $self->{'lly'}, $self->{'width'}, $self->{'height'});
 331     }
 332     bless ($self, $type);
 333     return $self;
 334 }
 335
 336 sub get_label_type {
 337     my $self = shift;
 338     return $self->{'printing_type'};
 339 }
 340
 341 sub get_attr {
 342     my $self = shift;
 343     if (_check_params(@_) eq 1) {
 344         return -1;
 345     }
 346     my ($attr) = @_;
 347     if (exists($self->{$attr})) {
 348         return $self->{$attr};
 349     }
 350     else {
 351         return -1;
 352     }
 353     return;
 354 }
 355
 356 sub create_label {
 357     my $self = shift;
 358     my $label_text = '';
 359     my ($text_llx, $text_lly, $line_spacer, $barcode_llx, $barcode_lly, $barcode_width, $barcode_y_scale_factor);
 360     {
 361         no strict 'refs';
 362         ($text_llx, $text_lly, $line_spacer, $barcode_llx, $barcode_lly, $barcode_width, $barcode_y_scale_factor) = &{"_$self->{'printing_type'}"}($self); # an obfuscated call to the correct printing type sub
 363     }
 364     if ($self->{'printing_type'} =~ /BIB/) {
 365         $label_text = draw_label_text(  $self,
 366                                         llx             => $text_llx,
 367                                         lly             => $text_lly,
 368                                         line_spacer     => $line_spacer,
 369                                     );
 370     }
 371     if ($self->{'printing_type'} =~ /BAR/) {
 372         barcode(    $self,
 373                     llx                 => $barcode_llx,
 374                     lly                 => $barcode_lly,
 375                     width               => $barcode_width,
 376                     y_scale_factor      => $barcode_y_scale_factor,
 377         );
 378     }
 379     return $label_text if $label_text;
 380     return;
 381 }
 382
 383 sub draw_label_text {
 384     my ($self, %params) = @_;
 385     my @label_text = ();
 386     my $text_llx = 0;
 387     my $text_lly = $params{'lly'};
 388     my $font = $self->{'font'};
 389     my $item = _get_label_item($self->{'item_number'});
 390     my $label_fields = _get_text_fields($self->{'format_string'});
 391     my $record = GetMarcBiblio($item->{'biblionumber'});
 392     # FIXME - returns all items, so you can't get data from an embedded holdings field.
 393     # TODO - add a GetMarcBiblio1item(bibnum,itemnum) or a GetMarcItem(itemnum).
 394     my $cn_source = ($item->{'cn_source'} ? $item->{'cn_source'} : C4::Context->preference('DefaultClassificationSource'));
 395     LABEL_FIELDS:       # process data for requested fields on current label
 396     for my $field (@$label_fields) {
 397         if ($field->{'code'} eq 'itemtype') {
 398             $field->{'data'} = C4::Context->preference('item-level_itypes') ? $item->{'itype'} : $item->{'itemtype'};
 399         }
 400         else {
 401             $field->{'data'} = _get_barcode_data($field->{'code'},$item,$record);
 402         }
 403         ($field->{'code'} eq 'title') ? (($font =~ /T/) ? ($font = 'TI') : ($font = ($font . 'O'))) : ($font = $font);
 404         my $field_data = $field->{'data'};
 405         if ($field_data) {
 406             $field_data =~ s/\n//g;
 407             $field_data =~ s/\r//g;
 408         }
 409         my @label_lines;
 410         # Fields which hold call number data  FIXME: ( 060? 090? 092? 099? )
 411         my @callnumber_list = qw(itemcallnumber 050a 050b 082a 952o 995k);
 412         if ((grep {$field->{'code'} =~ m/$_/} @callnumber_list) and ($self->{'printing_type'} eq 'BIB') and ($self->{'callnum_split'})) { # If the field contains the call number, we do some sp
 413             if ($cn_source eq 'lcc' || $cn_source eq 'nlm') { # NLM and LCC should be split the same way
 414                 @label_lines = _split_lccn($field_data);
 415                 @label_lines = _split_ccn($field_data) if !@label_lines;    # If it was not a true lccn, try it as a custom call number
 416                 push (@label_lines, $field_data) if !@label_lines;         # If it was not that, send it on unsplit
 417             } elsif ($cn_source eq 'ddc') {
 418                 @label_lines = _split_ddcn($field_data);
 419                 @label_lines = _split_ccn($field_data) if !@label_lines;
 420                 push (@label_lines, $field_data) if !@label_lines;
 421             } else {
 422                 warn sprintf('Call number splitting failed for: %s. Please add this call number to bug #2500 at bugs.koha-community.org', $field_data);
 423                 push @label_lines, $field_data;
 424             }
 425         }
 426         else {
 427             if ($field_data) {
 428                 $field_data =~ s/\/$//g;       # Here we will strip out all trailing '/' in fields other than the call number...
 429                 $field_data =~ s/\(/\\\(/g;    # Escape '(' and ')' for the pdf object stream...
 430                 $field_data =~ s/\)/\\\)/g;
 431             }
 432             eval{$Text::Wrap::columns = $self->{'text_wrap_cols'};};
 433             my @line = split(/\n/ ,wrap('', '', $field_data));
 434             # If this is a title field, limit to two lines; all others limit to one... FIXME: this is rather arbitrary
 435             if ($field->{'code'} eq 'title' && scalar(@line) >= 2) {
 436                 while (scalar(@line) > 2) {
 437                     pop @line;
 438                 }
 439             } else {
 440                 while (scalar(@line) > 1) {
 441                     pop @line;
 442                 }
 443             }
 444             push(@label_lines, @line);
 445         }
 446         LABEL_LINES:    # generate lines of label text for current field
 447         foreach my $line (@label_lines) {
 448             next LABEL_LINES if $line eq '';
 449             my $string_width = C4::Creators::PDF->StrWidth($line, $font, $self->{'font_size'});
 450             if ($self->{'justify'} eq 'R') {
 451                 $text_llx = $params{'llx'} + $self->{'width'} - ($self->{'left_text_margin'} + $string_width);
 452             }
 453             elsif($self->{'justify'} eq 'C') {
 454                  # some code to try and center each line on the label based on font size and string point width...
 455                  my $whitespace = ($self->{'width'} - ($string_width + (2 * $self->{'left_text_margin'})));
 456                  $text_llx = (($whitespace  / 2) + $params{'llx'} + $self->{'left_text_margin'});
 457             }
 458             else {
 459                 $text_llx = ($params{'llx'} + $self->{'left_text_margin'});
 460             }
 461             push @label_text,   {
 462                                 text_llx        => $text_llx,
 463                                 text_lly        => $text_lly,
 464                                 font            => $font,
 465                                 font_size       => $self->{'font_size'},
 466                                 line            => $line,
 467                                 };
 468             $text_lly = $text_lly - $params{'line_spacer'};
 469         }
 470         $font = $self->{'font'};        # reset font for next field
 471     }   #foreach field
 472     return \@label_text;
 473 }
 474
 475 sub draw_guide_box {
 476     return $_[0]->{'guidebox'};
 477 }
 478
 479 sub barcode {
 480     my $self = shift;
 481     my %params = @_;
 482     $params{'barcode_data'} = _get_label_item($self->{'item_number'}, 1) if !$params{'barcode_data'};
 483     $params{'barcode_type'} = $self->{'barcode_type'} if !$params{'barcode_type'};
 484     my $x_scale_factor = 1;
 485     my $num_of_bars = length($params{'barcode_data'});
 486     my $tot_bar_length = 0;
 487     my $bar_length = 0;
 488     my $guard_length = 10;
 489     my $hide_text = 'yes';
 490     if ($params{'barcode_type'} =~ m/CODE39/) {
 491         $bar_length = '17.5';
 492         $tot_bar_length = ($bar_length * $num_of_bars) + ($guard_length * 2);
 493         $x_scale_factor = ($params{'width'} / $tot_bar_length);
 494         if ($params{'barcode_type'} eq 'CODE39MOD') {
 495             my $c39 = CheckDigits('code_39');   # get modulo43 checksum
 496             $params{'barcode_data'} = $c39->complete($params{'barcode_data'});
 497         }
 498         elsif ($params{'barcode_type'} eq 'CODE39MOD10') {
 499             my $c39_10 = CheckDigits('siret');   # get modulo43 checksum
 500             $params{'barcode_data'} = $c39_10->complete($params{'barcode_data'});
 501             $hide_text = '';
 502         }
 503         eval {
 504             PDF::Reuse::Barcode::Code39(
 505                 x                   => $params{'llx'},
 506                 y                   => $params{'lly'},
 507                 value               => "*$params{barcode_data}*",
 508                 xSize               => $x_scale_factor,
 509                 ySize               => $params{'y_scale_factor'},
 510                 hide_asterisk       => 1,
 511                 text                => $hide_text,
 512                 mode                => 'graphic',
 513             );
 514         };
 515         if ($@) {
 516             warn sprintf('Barcode generation failed for item %s with this error: %s', $self->{'item_number'}, $@);
 517         }
 518     }
 519     elsif ($params{'barcode_type'} eq 'COOP2OF5') {
 520         $bar_length = '9.43333333333333';
 521         $tot_bar_length = ($bar_length * $num_of_bars) + ($guard_length * 2);
 522         $x_scale_factor = ($params{'width'} / $tot_bar_length) * 0.9;
 523         eval {
 524             PDF::Reuse::Barcode::COOP2of5(
 525                 x                   => $params{'llx'},
 526                 y                   => $params{'lly'},
 527                 value               => "*$params{barcode_data}*",
 528                 xSize               => $x_scale_factor,
 529                 ySize               => $params{'y_scale_factor'},
 530                 mode                    => 'graphic',
 531             );
 532         };
 533         if ($@) {
 534             warn sprintf('Barcode generation failed for item %s with this error: %s', $self->{'item_number'}, $@);
 535         }
 536     }
 537     elsif ( $params{'barcode_type'} eq 'INDUSTRIAL2OF5' ) {
 538         $bar_length = '13.1333333333333';
 539         $tot_bar_length = ($bar_length * $num_of_bars) + ($guard_length * 2);
 540         $x_scale_factor = ($params{'width'} / $tot_bar_length) * 0.9;
 541         eval {
 542             PDF::Reuse::Barcode::Industrial2of5(
 543                 x                   => $params{'llx'},
 544                 y                   => $params{'lly'},
 545                 value               => "*$params{barcode_data}*",
 546                 xSize               => $x_scale_factor,
 547                 ySize               => $params{'y_scale_factor'},
 548                 mode                    => 'graphic',
 549             );
 550         };
 551         if ($@) {
 552             warn sprintf('Barcode generation failed for item %s with this error: %s', $self->{'item_number'}, $@);
 553         }
 554     }
 555 }
 556
 557 sub csv_data {
 558     my $self = shift;
 559     my $label_fields = _get_text_fields($self->{'format_string'});
 560     my $item = _get_label_item($self->{'item_number'});
 561     my $bib_record = GetMarcBiblio($item->{biblionumber});
 562     my @csv_data = (map { _get_barcode_data($_->{'code'},$item,$bib_record) } @$label_fields);
 563     return \@csv_data;
 564 }
 565
 566 1;
 567 __END__
 568
 569 =head1 NAME
 570
 571 C4::Labels::Label - A class for creating and manipulating label objects in Koha
 572
 573 =head1 ABSTRACT
 574
 575 This module provides methods for creating, and otherwise manipulating single label objects used by Koha to create and export labels.
 576
 577 =head1 METHODS
 578
 579 =head2 new()
 580
 581     Invoking the I<new> method constructs a new label object containing the supplied values. Depending on the final output format of the label data
 582     the minimal required parameters change. (See the implimentation of this object type in labels/label-create-pdf.pl and labels/label-create-csv.pl
 583     and labels/label-create-xml.pl for examples.) The following parameters are optionally accepted as key => value pairs:
 584
 585         C<batch_id>             Batch id with which this label is associated
 586         C<item_number>          Item number of item to be the data source for this label
 587         C<height>               Height of this label (All measures passed to this method B<must> be supplied in postscript points)
 588         C<width>                Width of this label
 589         C<top_text_margin>      Top margin of this label
 590         C<left_text_margin>     Left margin of this label
 591         C<barcode_type>         Defines the barcode type to be used on labels. NOTE: At present only the following barcode types are supported in the label creator code:
 592
 593 =over 9
 594
 595 =item .
 596             CODE39          = Code 3 of 9
 597
 598 =item .
 599             CODE39MOD       = Code 3 of 9 with modulo 43 checksum
 600
 601 =item .
 602             CODE39MOD10     = Code 3 of 9 with modulo 10 checksum
 603
 604 =item .
 605             COOP2OF5        = A varient of 2 of 5 barcode based on NEC's "Process 8000" code
 606
 607 =item .
 608             INDUSTRIAL2OF5  = The standard 2 of 5 barcode (a binary level bar code developed by Identicon Corp. and Computer Identics Corp. in 1970)
 609
 610 =back
 611
 612         C<printing_type>        Defines the general layout to be used on labels. NOTE: At present there are only five printing types supported in the label creator code:
 613
 614 =over 9
 615
 616 =item .
 617 BIB     = Only the bibliographic data is printed
 618
 619 =item .
 620 BARBIB  = Barcode proceeds bibliographic data
 621
 622 =item .
 623 BIBBAR  = Bibliographic data proceeds barcode
 624
 625 =item .
 626 ALT     = Barcode and bibliographic data are printed on alternating labels
 627
 628 =item .
 629 BAR     = Only the barcode is printed
 630
 631 =back
 632
 633         C<guidebox>             Setting this to '1' will result in a guide box being drawn around the labels marking the edge of each label
 634         C<font>                 Defines the type of font to be used on labels. NOTE: The following fonts are available by default on most systems:
 635
 636 =over 9
 637
 638 =item .
 639 TR      = Times-Roman
 640
 641 =item .
 642 TB      = Times Bold
 643
 644 =item .
 645 TI      = Times Italic
 646
 647 =item .
 648 TBI     = Times Bold Italic
 649
 650 =item .
 651 C       = Courier
 652
 653 =item .
 654 CB      = Courier Bold
 655
 656 =item .
 657 CO      = Courier Oblique (Italic)
 658
 659 =item .
 660 CBO     = Courier Bold Oblique
 661
 662 =item .
 663 H       = Helvetica
 664
 665 =item .
 666 HB      = Helvetica Bold
 667
 668 =item .
 669 HBO     = Helvetical Bold Oblique
 670
 671 =back
 672
 673         C<font_size>            Defines the size of the font in postscript points to be used on labels
 674         C<callnum_split>        Setting this to '1' will enable call number splitting on labels
 675         C<text_justify>         Defines the text justification to be used on labels. NOTE: The following justification styles are currently supported by label creator code:
 676
 677 =over 9
 678
 679 =item .
 680 L       = Left
 681
 682 =item .
 683 C       = Center
 684
 685 =item .
 686 R       = Right
 687
 688 =back
 689
 690         C<format_string>        Defines what fields will be printed and in what order they will be printed on labels. These include any of the data fields that may be mapped
 691                                 to your MARC frameworks. Specify MARC subfields as a 4-character tag-subfield string: ie. 254a Enclose a whitespace-separated list of fields
 692                                 to concatenate on one line in double quotes. ie. "099a 099b" or "itemcallnumber barcode" Static text strings may be entered in single-quotes:
 693                                 ie. 'Some static text here.'
 694         C<text_wrap_cols>       Defines the column after which the text will wrap to the next line.
 695
 696 =head2 get_label_type()
 697
 698    Invoking the I<get_label_type> method will return the printing type of the label object.
 699
 700    example:
 701         C<my $label_type = $label->get_label_type();>
 702
 703 =head2 get_attr($attribute)
 704
 705     Invoking the I<get_attr> method will return the value of the requested attribute or -1 on errors.
 706
 707     example:
 708         C<my $value = $label->get_attr($attribute);>
 709
 710 =head2 create_label()
 711
 712     Invoking the I<create_label> method generates the text for that label and returns it as an arrayref of an array contianing the formatted text as well as creating the barcode
 713     and writing it directly to the pdf stream. The handling of the barcode is not quite good OO form due to the linear format of PDF::Reuse::Barcode. Be aware that the instantiating
 714     code is responsible to properly format the text for insertion into the pdf stream as well as the actual insertion.
 715
 716     example:
 717         my $label_text = $label->create_label();
 718
 719 =head2 draw_label_text()
 720
 721     Invoking the I<draw_label_text> method generates the label text for the label object and returns it as an arrayref of an array containing the formatted text. The same caveats
 722     apply to this method as to C<create_label()>. This method accepts the following parameters as key => value pairs: (NOTE: The unit is the postscript point - 72 per inch)
 723
 724         C<llx>                  The lower-left x coordinate for the text block (The point of origin for all PDF's is the lower left of the page per ISO 32000-1)
 725         C<lly>                  The lower-left y coordinate for the text block
 726         C<top_text_margin>      The top margin for the text block.
 727         C<line_spacer>          The number of pixels between text rows (This is actually leading: baseline to baseline minus font size. Recommended starting point is 20% of font size)
 728         C<font>                 The font to use for this label. See documentation on the new() method for supported fonts.
 729         C<font_size>            The font size in points to use for this label.
 730         C<justify>              The style of justification to use for this label. See documentation on the new() method for supported justification styles.
 731
 732     example:
 733        C<my $label_text = $label->draw_label_text(
 734                                                 llx                 => $text_llx,
 735                                                 lly                 => $text_lly,
 736                                                 top_text_margin     => $label_top_text_margin,
 737                                                 line_spacer         => $text_leading,
 738                                                 font                => $text_font,
 739                                                 font_size           => $text_font_size,
 740                                                 justify             => $text_justification,
 741                         );>
 742
 743 =head2 barcode()
 744
 745     Invoking the I<barcode> method generates a barcode for the label object and inserts it into the current pdf stream. This method accepts the following parameters as key => value
 746     pairs (C<barcode_data> is optional and omitting it will cause the barcode from the current item to be used. C<barcode_type> is also optional. Omission results in the barcode
 747     type of the current template being used.):
 748
 749         C<llx>                  The lower-left x coordinate for the barcode block (The point of origin for all PDF's is the lower left of the page per ISO 32000-1)
 750         C<lly>                  The lower-left y coordinate for the barcode block
 751         C<width>                The width of the barcode block
 752         C<y_scale_factor>       The scale factor to be applied to the y axis of the barcode block
 753         C<barcode_data>         The data to be encoded in the barcode
 754         C<barcode_type>         The barcode type (See the C<new()> method for supported barcode types)
 755
 756     example:
 757        C<$label->barcode(
 758                     llx                 => $barcode_llx,
 759                     lly                 => $barcode_lly,
 760                     width               => $barcode_width,
 761                     y_scale_factor      => $barcode_y_scale_factor,
 762                     barcode_data        => $barcode,
 763                     barcode_type        => $barcodetype,
 764         );>
 765
 766 =head2 csv_data()
 767
 768     Invoking the I<csv_data> method returns an arrayref of an array containing the label data suitable for passing to Text::CSV_XS->combine() to produce csv output.
 769
 770     example:
 771         C<my $csv_data = $label->csv_data();>
 772
 773 =head1 AUTHOR
 774
 775 Mason James <mason@katipo.co.nz>
 776
 777 Chris Nighswonger <cnighswonger AT foundations DOT edu>
 778
 779 =head1 COPYRIGHT
 780
 781 Copyright 2006 Katipo Communications.
 782
 783 Copyright 2009 Foundations Bible College.
 784
 785 =head1 LICENSE
 786
 787 This file is part of Koha.
 788
 789 Koha is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software
 790 Foundation; either version 2 of the License, or (at your option) any later version.
 791
 792 You should have received a copy of the GNU General Public License along with Koha; if not, write to the Free Software Foundation, Inc., 51 Franklin Street,
 793 Fifth Floor, Boston, MA 02110-1301 USA.
 794
 795 =head1 DISCLAIMER OF WARRANTY
 796
 797 Koha is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 798 A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 799
 800 =cut