From Code to Community: Sponsoring The Perl and Raku Conference 2025 Learn more

TELS / Graph-Easy-0.52 / lib / Graph / Easy / Group / Anon.pm 

            

              
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
—
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123

              
#############################################################################
# (c) by Tels 2004. Part of Graph::Easy. An anonymous group.
#
#############################################################################
package Graph::Easy::Group::Anon;
use Graph::Easy::Group;
@ISA = qw/Graph::Easy::Group/;
$VERSION = 0.01;
use strict;
sub _init
  {
  my $self = shift;
  $self->SUPER::_init(@_);
  $self->{name} = 'Group #' . $self->{id};
  $self->{class} = 'group.anon';
  $self->{att}->{label} = '';
  $self;
  }
sub _correct_size
  {
  my $self = shift;
  $self->{w} = 3;
  $self->{h} = 3;
  $self;
  }
sub attributes_as_txt
  {
  my $self = shift;
  $self->SUPER::attributes_as_txt( {
     node => {
       label => undef,
       shape => undef,
       class => undef,
       } } );
  }
sub as_pure_txt
  {
  '( )';
  }
sub _as_part_txt
  {
  '( )';
  }
sub as_graphviz_txt
  {
  my $self = shift;
   
  my $name = $self->{name};
  # quote special chars in name
  $name =~ s/([\[\]\(\)\{\}\#])/\\$1/g;
  '"' .  $name . '"';
  }
sub text_styles_as_css
  {
  '';
  }
sub is_anon
  {
  # is an anon group
  1;
  }
1;
__END__
=head1 NAME
Graph::Easy::Group::Anon - An anonymous group of nodes in Graph::Easy
=head1 SYNOPSIS
        use Graph::Easy::Group::Anon;
        my $anon = Graph::Easy::Group::Anon->new();
=head1 DESCRIPTION
A C<Graph::Easy::Group::Anon> represents an anonymous group of nodes,
e.g. a group without a name.
The syntax in the Graph::Easy textual description language looks like this:
        ( [ Bonn ] -> [ Berlin ] )
This module is loaded and used automatically by Graph::Easy, so there is
no need to use it manually.
=head1 EXPORT
None by default.
=head1 SEE ALSO
L<Graph::Easy::Group>.
=head1 AUTHOR
Copyright (C) 2004 - 2006 by Tels L<http://bloodgate.com>.
See the LICENSE file for more details.
=cut