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Name	Size	Permission
Area.pm	6.29 KB	-rw-rw-rw-
Bar.pm	8.62 KB	-rw-rw-rw-
Column.pm	7.54 KB	-rw-rw-rw-
Doughnut.pm	7.76 KB	-rw-rw-rw-
Line.pm	7.62 KB	-rw-rw-rw-
Pie.pm	12.43 KB	-rw-rw-rw-
Radar.pm	6.61 KB	-rw-rw-rw-
Scatter.pm	13.7 KB	-rw-rw-rw-
Stock.pm	7.8 KB	-rw-rw-rw-

Code Editor : Line.pm

package Excel::Writer::XLSX::Chart::Line;

###############################################################################
#
# Line - A class for writing Excel Line charts.
#
# Used in conjunction with Excel::Writer::XLSX::Chart.
#
# See formatting note in Excel::Writer::XLSX::Chart.
#
# Copyright 2000-2020, John McNamara, jmcnamara@cpan.org
#
# Documentation after __END__
#

# perltidy with the following options: -mbl=2 -pt=0 -nola

use 5.008002;
use strict;
use warnings;
use Carp;
use Excel::Writer::XLSX::Chart;

our @ISA     = qw(Excel::Writer::XLSX::Chart);
our $VERSION = '1.05';

###############################################################################
#
# new()
#
#
sub new {

my $class = shift;
    my $self  = Excel::Writer::XLSX::Chart->new( @_ );

$self->{_subtype}       = $self->{_subtype} || 'standard';
    $self->{_default_marker} = { type => 'none' };
    $self->{_smooth_allowed} = 1;

# Override and reset the default axis values.
    if ( $self->{_subtype} eq 'percent_stacked' ) {
        $self->{_y_axis}->{_defaults}->{num_format} = '0%';
    }

$self->set_y_axis();

# Set the available data label positions for this chart type.
    $self->{_label_position_default} = 'right';
    $self->{_label_positions} = {
        center      => 'ctr',
        right       => 'r',
        left        => 'l',
        above       => 't',
        below       => 'b',
        # For backward compatibility.
        top         => 't',
        bottom      => 'b',
    };

bless $self, $class;
    return $self;
}

##############################################################################
#
# _write_chart_type()
#
# Override the virtual superclass method with a chart specific method.
#
sub _write_chart_type {

my $self = shift;

# Write the c:lineChart element.
    $self->_write_line_chart( @_ );
}

##############################################################################
#
# _write_line_chart()
#
# Write the <c:lineChart> element.
#
sub _write_line_chart {

my $self = shift;
    my %args = @_;

my @series;
    if ( $args{primary_axes} ) {
        @series = $self->_get_primary_axes_series;
    }
    else {
        @series = $self->_get_secondary_axes_series;
    }

return unless scalar @series;

my $subtype = $self->{_subtype};

$subtype = 'percentStacked' if $subtype eq 'percent_stacked';

$self->xml_start_tag( 'c:lineChart' );

# Write the c:grouping element.
    $self->_write_grouping( $subtype );

# Write the series elements.
    $self->_write_series( $_ ) for @series;

# Write the c:dropLines element.
    $self->_write_drop_lines();

# Write the c:hiLowLines element.
    $self->_write_hi_low_lines();

# Write the c:upDownBars element.
    $self->_write_up_down_bars();

# Write the c:marker element.
    $self->_write_marker_value();

# Write the c:axId elements
    $self->_write_axis_ids( %args );

$self->xml_end_tag( 'c:lineChart' );
}

##############################################################################
#
# _write_d_pt_point()
#
# Write an individual <c:dPt> element. Override the parent method to add
# markers.
#
sub _write_d_pt_point {

my $self   = shift;
    my $index = shift;
    my $point = shift;

$self->xml_start_tag( 'c:dPt' );

# Write the c:idx element.
        $self->_write_idx( $index );

$self->xml_start_tag( 'c:marker' );

# Write the c:spPr element.
        $self->_write_sp_pr( $point );

$self->xml_end_tag( 'c:marker' );

$self->xml_end_tag( 'c:dPt' );
}

##############################################################################
#
# _write_marker_value()
#
# Write the <c:marker> element without a sub-element.
#
sub _write_marker_value {

my $self  = shift;

my @attributes = ( 'val' => 1 );

$self->xml_empty_tag( 'c:marker', @attributes );
}

__END__

=head1 NAME

Line - A class for writing Excel Line charts.

=head1 SYNOPSIS

To create a simple Excel file with a Line chart using Excel::Writer::XLSX:

#!/usr/bin/perl

use strict;
    use warnings;
    use Excel::Writer::XLSX;

my $workbook  = Excel::Writer::XLSX->new( 'chart.xlsx' );
    my $worksheet = $workbook->add_worksheet();

my $chart     = $workbook->add_chart( type => 'line' );

# 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 Line charts for L<Excel::Writer::XLSX>. The chart object is created via the Workbook C<add_chart()> method:

my $chart = $workbook->add_chart( type => 'line' );

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<Excel::Writer::XLSX::Chart>. Class specific methods or settings, if any, are explained below.

=head1 Line Chart Subtypes

The C<Line> chart module also supports the following sub-types:

stacked
    percent_stacked

These can be specified at creation time via the C<add_chart()> Worksheet method:

my $chart = $workbook->add_chart( type => 'line', subtype => 'stacked' );

=head1 EXAMPLE

Here is a complete example that demonstrates most of the available features when creating a chart.

#!/usr/bin/perl

use strict;
    use warnings;
    use Excel::Writer::XLSX;

my $workbook  = Excel::Writer::XLSX->new( 'chart_line.xlsx' );
    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', 'Batch 1', 'Batch 2' ];
    my $data = [
        [ 2, 3, 4, 5, 6, 7 ],
        [ 10, 40, 50, 20, 10, 50 ],
        [ 30, 60, 70, 50, 40, 30 ],

];

$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 => 'line', embedded => 1 );

# Configure the first series.
    $chart->add_series(
        name       => '=Sheet1!$B$1',
        categories => '=Sheet1!$A$2:$A$7',
        values     => '=Sheet1!$B$2:$B$7',
    );

# Configure second series. Note alternative use of array ref to define
    # ranges: [ $sheetname, $row_start, $row_end, $col_start, $col_end ].
    $chart->add_series(
        name       => '=Sheet1!$C$1',
        categories => [ 'Sheet1', 1, 6, 0, 0 ],
        values     => [ 'Sheet1', 1, 6, 2, 2 ],
    );

# 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 (mm)' );

# Set an Excel chart style. Colors with white outline and shadow.
    $chart->set_style( 10 );

# 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>

=end html

=head1 AUTHOR

John McNamara jmcnamara@cpan.org

=head1 COPYRIGHT

${this.title}

Code Editor : Line.pm