X-Git-Url: http://git.vpit.fr/?a=blobdiff_plain;f=lib%2FLaTeX%2FTikZ%2FSet%2FPath.pm;h=081f35bce312e2ffe30e353d737ef3954e76d56e;hb=6832c809e7591e1c3e2809654f814c298d28d2ef;hp=5a9e59c283432bd5b814cb52fc4b28fd15ba22a9;hpb=af7d6a5aef3bf5fec0c187b3a13a14adc88251fd;p=perl%2Fmodules%2FLaTeX-TikZ.git

diff --git a/lib/LaTeX/TikZ/Set/Path.pm b/lib/LaTeX/TikZ/Set/Path.pm
index 5a9e59c..081f35b 100644
--- a/lib/LaTeX/TikZ/Set/Path.pm
+++ b/lib/LaTeX/TikZ/Set/Path.pm
@@ -5,75 +5,79 @@ use warnings;
 
 =head1 NAME
 
-LaTeX::TikZ::Set::Path - A set object representing a path.
+LaTeX::TikZ::Set::Path - A role for set objects that can be part of a path.
 
 =head1 VERSION
 
-Version 0.01
+Version 0.02
 
 =cut
 
-our $VERSION = '0.01';
+our $VERSION = '0.02';
 
-use LaTeX::TikZ::Interface;
-use LaTeX::TikZ::Functor;
+=head1 DESCRIPTION
 
-use Any::Moose;
-use Any::Moose 'Util::TypeConstraints'
-               => [ qw/subtype as where find_type_constraint/ ];
+Paths are all the elements against which we can call the C<path> method.
 
-with qw(
- LaTeX::TikZ::Set::Op
- LaTeX::TikZ::Set::Mutable
-);
+=cut
 
-subtype 'LaTeX::TikZ::Set::Path::Elements'
-     => as 'Object'
-     => where { $_->does('LaTeX::TikZ::Set::Op') };
+use Any::Moose 'Role';
 
-has '_ops' => (
- is       => 'ro',
- isa      => 'Maybe[ArrayRef[LaTeX::TikZ::Set::Path::Elements]]',
- init_arg => 'ops',
- default  => sub { [ ] },
-);
+=head1 RELATIONSHIPS
 
-sub ops { @{$_[0]->_ops} }
+This role consumes the L<LaTeX::TikZ::Set> role, and as such implements the L</draw> method.
 
-my $ltspe_tc = find_type_constraint('LaTeX::TikZ::Set::Path::Elements');
+=cut
 
-sub add {
- my $set = shift;
+with 'LaTeX::TikZ::Set';
 
- $ltspe_tc->assert_valid($_) for @_;
+=head1 METHODS
 
- push @{$set->_ops}, @_;
+These methods are required by the interface :
 
- $set;
-}
+=over 4
 
-sub path {
- my $set = shift;
+=item *
 
- join ' ', map $_->path(@_), $set->ops;
-}
+C<path $formatter>
+
+Returns the TikZ code that builds a path out of the current set object as a string formatted by the L<LaTeX::TikZ::Formatter> object C<$formatter>.
+
+=item *
+
+C<begin>
+
+Returns a L<LaTeX::TikZ::Point> object pointing to the beginning of the path, or C<undef> if this path has no beginning.
+
+=item *
 
-LaTeX::TikZ::Interface->register(
- path => sub {
-  shift;
+C<end>
 
-  __PACKAGE__->new(ops => \@_);
- },
-);
+A L<LaTeX::TikZ::Point> object pointing to the end of the path, or C<undef> if this path has no end.
+
+=back
+
+=cut
+
+requires qw<
+ path
+ begin
+ end
+>;
+
+=head2 C<draw>
+
+=cut
+
+sub draw {
+ my $set = shift;
+
+ [ "\\draw " . $set->path(@_) . ' ;' ];
+}
 
-LaTeX::TikZ::Functor->default_rule(
- (__PACKAGE__) => sub {
-  my ($functor, $set, @args) = @_;
-  $set->new(ops => [ map $_->$functor(@args), $set->ops ])
- }
-);
+=head1 SEE ALSO
 
-__PACKAGE__->meta->make_immutable;
+L<LaTeX::TikZ>, L<LaTeX::TikZ::Set>.
 
 =head1 AUTHOR
 
@@ -100,4 +104,4 @@ This program is free software; you can redistribute it and/or modify it under th
 
 =cut
 
-1; # End of LaTeX::TikZ::Set::Path
+1; # End of LaTeX::TikZ::Set::Path;