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SLOYD / Chart-GGPlot-0.0002_01 / lib / Chart / GGPlot / Theme / Functions.pm 

            

              
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package Chart::GGPlot::Theme::Functions;
# ABSTRACT: Function interface of Chart::GGPlot::Theme
use Chart::GGPlot::Setup;
our $VERSION = '0.0002_01'; # TRIAL VERSION
use Chart::GGPlot::Theme;
use Chart::GGPlot::Types qw(:all);
use Chart::GGPlot::Util qw(:all);
use parent qw(Exporter::Tiny);
our @EXPORT_OK = qw(theme update_theme);
sub theme {
    return Chart::GGPlot::Theme->new(@_);
}
fun update_theme(Theme $old_theme, Theme $new_theme) {
    # If newtheme is a "complete" theme, then it is meant to replace
    # oldtheme; this function just returns newtheme.
    return $new_theme if ($new_theme->complete);
    # These are elements in newtheme that aren't already set in oldtheme.
    # They will be pulled from the default theme.
    my $new_items = aref_diff($old_theme->names, $new_theme->names);
    for my $name (@$new_items) {
        $old_theme->set($name, $ggplot_global->theme_current->at($name));
    }
    my $old_validate = $old_theme->validate;
    my $new_validate = $new_theme->validate;
    $old_theme->validate = ($old_validate and $new_validate);
    return $old_theme->add_theme($new_theme);
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Chart::GGPlot::Theme::Functions - Function interface of Chart::GGPlot::Theme
=head1 VERSION
version 0.0002_01
=head1 SEE ALSO
L<Chart::GGPlot::Theme>
=head1 AUTHOR
Stephan Loyd <sloyd@cpan.org>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2019 by Stephan Loyd.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut