/usr/share/perl5/Spreadsheet/WriteExcel/Chart/Bar.pm is in libspreadsheet-writeexcel-perl 2.37-1.
This file is owned by root:root, with mode 0o644.
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###############################################################################
#
# Bar - A writer class for Excel Bar charts.
#
# Used in conjunction with Spreadsheet::WriteExcel::Chart.
#
# See formatting note in Spreadsheet::WriteExcel::Chart.
#
# Copyright 2000-2010, John McNamara, jmcnamara@cpan.org
#
# Documentation after __END__
#
require Exporter;
use strict;
use Spreadsheet::WriteExcel::Chart;
use vars qw($VERSION @ISA);
@ISA = qw(Spreadsheet::WriteExcel::Chart Exporter);
$VERSION = '2.37';
###############################################################################
#
# new()
#
#
sub new {
my $class = shift;
my $self = Spreadsheet::WriteExcel::Chart->new( @_ );
bless $self, $class;
# The axis positions are reversed for a bar chart so we change the config.
my $c = $self->{_config};
$c->{_x_axis_text} = [ 0x2D, 0x6D9, 0x5F, 0x1CC, 0x281, 0x0, 90 ];
$c->{_x_axis_text_pos} = [ 2, 2, 0, 0, 0x17, 0x2A ];
$c->{_y_axis_text} = [ 0x078A, 0x0DFC, 0x011D, 0x9C, 0x0081, 0x0000 ];
$c->{_y_axis_text_pos} = [ 2, 2, 0, 0, 0x45, 0x17 ];
return $self;
}
###############################################################################
#
# _store_chart_type()
#
# Implementation of the abstract method from the specific chart class.
#
# Write the BAR chart BIFF record. Defines a bar or column chart type.
#
sub _store_chart_type {
my $self = shift;
my $record = 0x1017; # Record identifier.
my $length = 0x0006; # Number of bytes to follow.
my $pcOverlap = 0x0000; # Space between bars.
my $pcGap = 0x0096; # Space between cats.
my $grbit = 0x0001; # Option flags.
my $header = pack 'vv', $record, $length;
my $data = '';
$data .= pack 'v', $pcOverlap;
$data .= pack 'v', $pcGap;
$data .= pack 'v', $grbit;
$self->_append( $header, $data );
}
###############################################################################
#
# _set_embedded_config_data()
#
# Override some of the default configuration data for an embedded chart.
#
sub _set_embedded_config_data {
my $self = shift;
# Set the parent configuration first.
$self->SUPER::_set_embedded_config_data();
# The axis positions are reversed for a bar chart so we change the config.
my $c = $self->{_config};
$c->{_x_axis_text} = [ 0x57, 0x5BC, 0xB5, 0x214, 0x281, 0x0, 90 ];
$c->{_x_axis_text_pos} = [ 2, 2, 0, 0, 0x17, 0x2A ];
$c->{_y_axis_text} = [ 0x074A, 0x0C8F, 0x021F, 0x123, 0x81, 0x0000 ];
$c->{_y_axis_text_pos} = [ 2, 2, 0, 0, 0x45, 0x17 ];
}
1;
__END__
=head1 NAME
Bar - A writer class for Excel Bar charts.
=head1 SYNOPSIS
To create a simple Excel file with a Bar chart using Spreadsheet::WriteExcel:
#!/usr/bin/perl -w
use strict;
use Spreadsheet::WriteExcel;
my $workbook = Spreadsheet::WriteExcel->new( 'chart.xls' );
my $worksheet = $workbook->add_worksheet();
my $chart = $workbook->add_chart( type => 'bar' );
# Configure the chart.
$chart->add_series(
categories => '=Sheet1!$A$2:$A$7',
values => '=Sheet1!$B$2:$B$7',
);
# Add the worksheet data the chart refers to.
my $data = [
[ 'Category', 2, 3, 4, 5, 6, 7 ],
[ 'Value', 1, 4, 5, 2, 1, 5 ],
];
$worksheet->write( 'A1', $data );
__END__
=head1 DESCRIPTION
This module implements Bar charts for L<Spreadsheet::WriteExcel>. The chart object is created via the Workbook C<add_chart()> method:
my $chart = $workbook->add_chart( type => 'bar' );
Once the object is created it can be configured via the following methods that are common to all chart classes:
$chart->add_series();
$chart->set_x_axis();
$chart->set_y_axis();
$chart->set_title();
These methods are explained in detail in L<Spreadsheet::WriteExcel::Chart>. Class specific methods or settings, if any, are explained below.
=head1 Bar Chart Methods
There aren't currently any bar chart specific methods. See the TODO section of L<Spreadsheet::WriteExcel::Chart>.
=head1 EXAMPLE
Here is a complete example that demonstrates most of the available features when creating a chart.
#!/usr/bin/perl -w
use strict;
use Spreadsheet::WriteExcel;
my $workbook = Spreadsheet::WriteExcel->new( 'chart_bar.xls' );
my $worksheet = $workbook->add_worksheet();
my $bold = $workbook->add_format( bold => 1 );
# Add the worksheet data that the charts will refer to.
my $headings = [ 'Number', 'Sample 1', 'Sample 2' ];
my $data = [
[ 2, 3, 4, 5, 6, 7 ],
[ 1, 4, 5, 2, 1, 5 ],
[ 3, 6, 7, 5, 4, 3 ],
];
$worksheet->write( 'A1', $headings, $bold );
$worksheet->write( 'A2', $data );
# Create a new chart object. In this case an embedded chart.
my $chart = $workbook->add_chart( type => 'bar', embedded => 1 );
# Configure the first series. (Sample 1)
$chart->add_series(
name => 'Sample 1',
categories => '=Sheet1!$A$2:$A$7',
values => '=Sheet1!$B$2:$B$7',
);
# Configure the second series. (Sample 2)
$chart->add_series(
name => 'Sample 2',
categories => '=Sheet1!$A$2:$A$7',
values => '=Sheet1!$C$2:$C$7',
);
# Add a chart title and some axis labels.
$chart->set_title ( name => 'Results of sample analysis' );
$chart->set_x_axis( name => 'Test number' );
$chart->set_y_axis( name => 'Sample length (cm)' );
# Insert the chart into the worksheet (with an offset).
$worksheet->insert_chart( 'D2', $chart, 25, 10 );
__END__
=begin html
<p>This will produce a chart that looks like this:</p>
<p><center><img src="http://homepage.eircom.net/~jmcnamara/perl/images/bar1.jpg" width="527" height="320" alt="Chart example." /></center></p>
=end html
=head1 AUTHOR
John McNamara jmcnamara@cpan.org
=head1 COPYRIGHT
Copyright MM-MMX, John McNamara.
All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.
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