Add label and position support to Set::Point

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

diff --git a/lib/LaTeX/TikZ/Set/Point.pm b/lib/LaTeX/TikZ/Set/Point.pm
index 409db5f359db6e51fa6686f5a01b21ba8f65f06d..b45adaf41411a21415fcba9a9966bb977c1b940c 100644 (file)
--- a/lib/LaTeX/TikZ/Set/Point.pm
+++ b/lib/LaTeX/TikZ/Set/Point.pm
@@ -17,6 +17,9 @@ our $VERSION = '0.01';
 
 use LaTeX::TikZ::Point;
 
+use LaTeX::TikZ::Interface;
+use LaTeX::TikZ::Functor;
+
 use Any::Moose;
 use Any::Moose 'Util::TypeConstraints';
 
@@ -27,6 +30,29 @@ has 'point' => (
  isa      => 'LaTeX::TikZ::Point::Autocoerce',
  required => 1,
  coerce   => 1,
+ handles  => [ qw/x y/ ],
+);
+
+has 'label' => (
+ is      => 'rw',
+ isa     => 'Maybe[Str]',
+ default => undef,
+);
+
+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'
@@ -42,14 +68,47 @@ sub path {
 
  my $p = $set->point;
 
- '(' . $tikz->len($p->x) . ',' . $tikz->len($p->y) . ')';
+ 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;
 }
 
-use LaTeX::TikZ::Interface point => sub {
- shift;
+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, @_);
+ },
+);
 
- __PACKAGE__->new(point => @_ > 1 ? \@_ : $_[0] );
-};
+LaTeX::TikZ::Functor->default_rule(
+ (__PACKAGE__) => sub {
+  my ($functor, $set, @args) = @_;
+  $set->new(
+   point => $set->point,
+   label => $set->label,
+   pos   => $set->pos,
+  );
+ }
+);
 
 __PACKAGE__->meta->make_immutable;