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1 parent 49c66d7 commit f8e9fb6445dadbdef91e13a253c9c6bcb75e0eec tipaul committed Mar 9, 2007
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+package C4::Barcodes::PrinterConfig;
+
+# This file is part of Koha.
+#
+# 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
+# Foundation; either version 2 of the License, or (at your option) any later
+# version.
+#
+# 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
+# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
+# Suite 330, Boston, MA 02111-1307 USA
+
+use strict;
+require Exporter;
+use vars qw($VERSION @EXPORT);
+
+use PDF::API2;
+use PDF::API2::Page;
+
+# set the version for version checking
+$VERSION = 0.01;
+
+=head1 NAME
+
+C4::Barcodes::PrinterConfig - Koha module dealing with labels in a PDF.
+
+=head1 SYNOPSIS
+
+ use C4::Barcodes::PrinterConfig;
+
+=head1 DESCRIPTION
+
+This package is used to deal with labels in a pdf file. Giving some parameters,
+this package contains several functions to handle every label considering the
+environment of the pdf file.
+
+=head1 FUNCTIONS
+
+=over 2
+
+=cut
+
+@EXPORT = qw(&labelsPage &getLabelPosition setPositionsForX setPositionsForY);
+
+my @positionsForX; # Takes all the X positions of the pdf file.
+my @positionsForY; # Takes all the Y positions of the pdf file.
+my $firstLabel = 1; # Test if the label passed as a parameter is the first label to be printed into the pdf file.
+
+=item setPositionsForX
+
+ C4::Barcodes::PrinterConfig::setPositionsForX($marginLeft, $labelWidth, $columns, $pageType);
+
+Calculate and stores all the X positions across the pdf page.
+
+C<$marginLeft> Indicates how much left margin do you want in your page type.
+
+C<$labelWidth> Indicates the width of the label that you are going to use.
+
+C<$columns> Indicates how many columns do you want in your page type.
+
+C<$pageType> Page type to print (eg: a4, legal, etc).
+
+=cut
+#'
+sub setPositionsForX {
+ my ($marginLeft, $labelWidth, $columns, $pageType) = @_;
+ my $defaultDpi = 72/25.4; # By default we know 25.4 mm -> 1 inch -> 72 dots per inch
+ my $whereToStart = ($marginLeft + ($labelWidth/2));
+ my $firstLabel = $whereToStart*$defaultDpi;
+ my $spaceBetweenLabels = $labelWidth*$defaultDpi;
+ my @positions;
+ for (my $i = 0; $i < $columns ; $i++) {
+ push @positions, ($firstLabel+($spaceBetweenLabels*$i));
+ }
+ @positionsForX = @positions;
+}
+
+=item setPositionsForY
+
+ C4::Barcodes::PrinterConfig::setPositionsForY($marginBottom, $labelHeigth, $rows, $pageType);
+
+Calculate and stores all tha Y positions across the pdf page.
+
+C<$marginBottom> Indicates how much bottom margin do you want in your page type.
+
+C<$labelHeigth> Indicates the height of the label that you are going to use.
+
+C<$rows> Indicates how many rows do you want in your page type.
+
+C<$pageType> Page type to print (eg: a4, legal, etc).
+
+=cut
+#'
+sub setPositionsForY {
+ my ($marginBottom, $labelHeigth, $rows, $pageType) = @_;
+ my $defaultDpi = 72/25.4; # By default we know 25.4 mm -> 1 inch -> 72 dots per inch
+ my $whereToStart = ($marginBottom + ($labelHeigth/2));
+ my $firstLabel = $whereToStart*$defaultDpi;
+ my $spaceBetweenLabels = $labelHeigth*$defaultDpi;
+ my @positions;
+ for (my $i = 0; $i < $rows; $i++) {
+ unshift @positions, ($firstLabel+($spaceBetweenLabels*$i));
+ }
+ @positionsForY = @positions;
+}
+
+=item getLabelPosition
+
+ (my $x, my $y, $pdfObject, $pageObject, $gfxObject, $textObject, $coreObject, $labelPosition) =
+ C4::Barcodes::PrinterConfig::getLabelPosition($labelPosition,
+ $pdfObject,
+ $page,
+ $gfx,
+ $text,
+ $fontObject,
+ $pageType);
+
+Return the (x,y) position of the label that you are going to print considering the environment.
+
+C<$labelPosition> Indicates which label positions do you want to place by x and y coordinates.
+
+C<$pdfObject> The PDF object in use.
+
+C<$page> The page in use.
+
+C<$gfx> The gfx resource to handle with barcodes objects.
+
+C<$text> The text resource to handle with text.
+
+C<$fontObject> The font object
+
+C<$pageType> Page type to print (eg: a4, legal, etc).
+
+=cut
+#'
+sub getLabelPosition {
+ my ($labelNum, $pdf, $page, $gfxObject, $textObject, $fontObject, $pageType) = @_;
+ my $indexX = $labelNum % @positionsForX;
+ my $indexY = int($labelNum / @positionsForX);
+ # Calculates the next label position and return that label number
+ my $nextIndexX = $labelNum % @positionsForX;
+ my $nextIndexY = $labelNum % @positionsForY;
+ if ($firstLabel) {
+ $page = $pdf->page;
+ $page->mediabox($pageType);
+ $gfxObject = $page->gfx;
+ $textObject = $page->text;
+ $textObject->font($fontObject, 7);
+ $firstLabel = 0;
+ } elsif (($nextIndexX == 0) && ($nextIndexY == 0)) {
+ $page = $pdf->page;
+ $page->mediabox($pageType);
+ $gfxObject = $page->gfx;
+ $textObject = $page->text;
+ $textObject->font($fontObject, 7);
+ }
+ $labelNum = $labelNum + 1;
+ if ($labelNum == (@positionsForX*@positionsForY)) {
+ $labelNum = 0;
+ }
+ return ($positionsForX[$indexX], $positionsForY[$indexY], $pdf, $page, $gfxObject, $textObject, $fontObject, $labelNum);
+}
+
+=item labelsPage
+
+ my @labelTable = C4::Barcodes::PrinterConfig::labelsPage($rows, $columns);
+
+This function will help you to build the labels panel, where you can choose
+wich label position do you want to start the printer process.
+
+C<$rows> Indicates how many rows do you want in your page type.
+
+C<$columns> Indicates how many rows do you want in your page type.
+
+=cut
+#'
+sub labelsPage{
+ my ($rows, $columns) = @_;
+ my @pageType;
+ my $tagname = 0;
+ my $labelname = 1;
+ my $check;
+ for (my $i = 1; $i <= $rows; $i++) {
+ my @column;
+ for (my $j = 1; $j <= $columns; $j++) {
+ my %cell;
+ if ($tagname == 0) {
+ $check = 'checked';
+ } else {
+ $check = '';
+ }
+ %cell = (check => $check,
+ tagname => $tagname,
+ labelname => $labelname);
+ $tagname = $tagname + 1;
+ $labelname = $labelname + 1;
+ push @column, \%cell;
+ }
+ my %columns = (columns => \@column);
+ push @pageType, \%columns;
+ }
+ return @pageType;
+}
+
+1;
+
+__END__
+
+=back
+
+=head1 AUTHOR
+
+Koha Physics Library UNLP <matias_veleda@hotmail.com>
+
+=cut
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