File Coverage

blib/lib/Excel/Writer/XLSX/Chart/Line.pm

Criterion	Covered	Total	%
statement	58	58	100.0
branch	8	8	100.0
condition	2	2	100.0
subroutine	10	10	100.0
pod	0	1	0.0
total	78	79	98.7

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, [e-mail]
#
# 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 = '1.07';


###############################################################################
#
# 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  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  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  element without a sub-element.
#
sub _write_marker_value {

    my $self  = shift;

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

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


1;


__END__