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package Chart::Clicker::Decoration::Legend;
$Chart::Clicker::Decoration::Legend::VERSION = '2.90';
use Moose;
extends 'Chart::Clicker::Container';
with 'Graphics::Primitive::Oriented';
# ABSTRACT: Series name, color key
use Graphics::Primitive::Font;
use Graphics::Primitive::Insets;
use Graphics::Primitive::TextBox;
use Layout::Manager::Flow;
has '+border' => (
default => sub {
my $b = Graphics::Primitive::Border->new;
$b->color(Graphics::Color::RGB->new( red => 0, green => 0, blue => 0));
$b->width(1);
return $b;
}
);
has 'font' => (
is => 'rw',
isa => 'Graphics::Primitive::Font',
default => sub {
Graphics::Primitive::Font->new
}
);
has 'item_padding' => (
is => 'rw',
isa => 'Graphics::Primitive::Insets',
default => sub {
Graphics::Primitive::Insets->new({
top => 3, left => 3, bottom => 3, right => 5
})
}
);
has '+layout_manager' => (
default => sub { Layout::Manager::Flow->new(anchor => 'west', wrap => 1) },
lazy => 1
);
override('prepare', sub {
my ($self, $driver) = @_;
return if $self->component_count > 0;
my $ca = $self->clicker->color_allocator;
my $font = $self->font;
my $ii = $self->item_padding;
#this makes sure that wrapping works
$self->width($self->clicker->width);
if($self->is_vertical) {
# This assumes you aren't changing the layout manager...
$self->layout_manager->anchor('north');
}
my $count = 0;
foreach my $ds (@{ $self->clicker->datasets }) {
foreach my $s (@{ $ds->series }) {
unless($s->has_name) {
$s->name("Series $count");
}
my $tb = Graphics::Primitive::TextBox->new(
color => $ca->next,
font => $font,
padding => $ii,
text => $s->name
);
$self->add_component($tb);
$count++;
}
}
super;
$ca->reset;
});
__PACKAGE__->meta->make_immutable;
no Moose;
1;
__END__
=pod
=head1 NAME
Chart::Clicker::Decoration::Legend - Series name, color key
=head1 VERSION
version 2.90
=head1 DESCRIPTION
Chart::Clicker::Decoration::Legend draws a legend on a Chart.
=head1 ATTRIBUTES
=head2 border
Set/Get this Legend's L<border|Graphics::Primitive::Border>.
=head2 font
Set/Get the L<font|Graphics::Primitive::Font> used for this legend's items.
=head2 insets
Set/Get this Legend's L<insets|Graphics::Primitive::Insets>.
=head2 item_padding
Set/Get the L<padding|Graphics::Primitive::Insets> for this legend's items.
=head2 layout_manager
Set/Get the layout manager for this lagend. Defaults to
L<Layout::Manager::Flow> with an anchor of C<west> and a C<wrap> of 1.
=head1 AUTHOR
Cory G Watson <gphat@cpan.org>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2016 by Cory G Watson.
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
|
