package LaTeX::TikZ::Set::Point;
use strict;
use warnings;
=head1 NAME
LaTeX::TikZ::Set::Point - A set object representing a point.
=head1 VERSION
Version 0.02
=cut
our $VERSION = '0.02';
use LaTeX::TikZ::Point;
use LaTeX::TikZ::Interface;
use LaTeX::TikZ::Functor;
use Any::Moose;
use Any::Moose 'Util::TypeConstraints';
=head1 RELATIONSHIPS
This class consumes the L role, and as such implements the L method.
=cut
with 'LaTeX::TikZ::Set::Op';
=head1 ATTRIBUTES
=head2 C
The L object representing the underlying geometrical point.
=cut
has 'point' => (
is => 'ro',
isa => 'LaTeX::TikZ::Point::Autocoerce',
required => 1,
coerce => 1,
handles => [ qw/x y/ ],
);
=head2 C
An optional label for the point.
=cut
has 'label' => (
is => 'rw',
isa => 'Maybe[Str]',
default => undef,
);
=head2 C
The position of the label around the point.
=cut
enum 'LaTeX::TikZ::Set::Point::Positions' => (
'below left',
'below',
'below right',
'right',
'above right',
'above',
'above left',
'left',
);
has 'pos' => (
is => 'rw',
isa => 'Maybe[LaTeX::TikZ::Set::Point::Positions]',
);
coerce 'LaTeX::TikZ::Set::Point'
=> from 'Any'
=> via { __PACKAGE__->new(point => $_) };
coerce 'LaTeX::TikZ::Point::Autocoerce'
=> from 'LaTeX::TikZ::Set::Point'
=> via { $_->point };
=head1 METHODS
=head2 C
=cut
sub path {
my ($set, $tikz) = @_;
my $p = $set->point;
my $path = '(' . $tikz->len($p->x) . ',' . $tikz->len($p->y) . ')';
my $label = $set->label;
if (defined $label) {
my $pos = $set->pos;
$pos = 'above' unless defined $pos;
my $size = sprintf '%0.1fpt', 2 * $tikz->scale / 5;
$path .= " [fill] circle ($size) " . $tikz->label($label, $pos);
}
$path;
}
LaTeX::TikZ::Interface->register(
point => sub {
shift;
my $point;
if (@_ == 0) {
$point = 0;
} elsif (@_ % 2) {
$point = shift;
} else { # @_ even, @_ >= 2
$point = [ shift, shift ];
}
__PACKAGE__->new(point => $point, @_);
},
);
LaTeX::TikZ::Functor->default_rule(
(__PACKAGE__) => sub {
my ($functor, $set, @args) = @_;
$set->new(
point => $set->point,
label => $set->label,
pos => $set->pos,
);
}
);
__PACKAGE__->meta->make_immutable;
=head1 SEE ALSO
L, L.
=head1 AUTHOR
Vincent Pit, C<< >>, L.
You can contact me by mail or on C (vincent).
=head1 BUGS
Please report any bugs or feature requests to C, or through the web interface at L.
I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.
=head1 SUPPORT
You can find documentation for this module with the perldoc command.
perldoc LaTeX::TikZ
=head1 COPYRIGHT & LICENSE
Copyright 2010 Vincent Pit, all rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
=cut
1; # End of LaTeX::TikZ::Set::Point