Introduce LaTeX::TikZ::Set::Arrow

[perl/modules/LaTeX-TikZ.git] / lib / LaTeX / TikZ / Set / Arrow.pm

diff --git a/lib/LaTeX/TikZ/Set/Arrow.pm b/lib/LaTeX/TikZ/Set/Arrow.pm
new file mode 100644 (file)
index 0000000..cc10eab
--- /dev/null
+++ b/lib/LaTeX/TikZ/Set/Arrow.pm
@@ -0,0 +1,77 @@
+package LaTeX::TikZ::Set::Arrow;
+
+use strict;
+use warnings;
+
+=head1 NAME
+
+LaTeX::TikZ::Set::Arrow - A combined set object representing an arrow.
+
+=head1 VERSION
+
+Version 0.01
+
+=cut
+
+our $VERSION = '0.01';
+
+use Carp;
+
+use LaTeX::TikZ::Point;
+
+use LaTeX::TikZ::Set::Line;
+
+use Any::Moose 'Util::TypeConstraints' => [ 'find_type_constraint' ];
+
+my $ltp_tc = find_type_constraint('LaTeX::TikZ::Point::Autocoerce');
+
+use LaTeX::TikZ::Interface arrow => sub {
+ shift;
+
+ Carp::confess('Not enough arguments') unless @_ >= 2;
+
+ my $from = $ltp_tc->coerce(shift);
+
+ my $to;
+ if ($_[0] eq 'dir') {
+  my $dir = $ltp_tc->coerce($_[1]);
+  $to = LaTeX::TikZ::Point->new(
+   x => $from->x + $dir->x,
+   y => $from->y + $dir->y,
+  );
+ } else {
+  $to = $_[0];
+ }
+
+ LaTeX::TikZ::Set::Line->new(
+  from => $from,
+  to   => $to,
+ )->mod('->');
+};
+
+=head1 AUTHOR
+
+Vincent Pit, C<< <perl at profvince.com> >>, L<http://www.profvince.com>.
+
+You can contact me by mail or on C<irc.perl.org> (vincent).
+
+=head1 BUGS
+
+Please report any bugs or feature requests to C<bug-latex-tikz at rt.cpan.org>, or through the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=LaTeX-TikZ>.
+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::Arrow