1 files changed, 39 insertions, 0 deletions
diff --git a/lib/Graph/GEXF/Role/Viz/Shape.pm b/lib/Graph/GEXF/Role/Viz/Shape.pm
new file mode 100644
index 0000000..b092d6d
--- /dev/null
+++ b/lib/Graph/GEXF/Role/Viz/Shape.pm
@@ -0,0 +1,39 @@
+package Graph::GEXF::Role::Viz::Shape;
+
+use Moose::Util::TypeConstraints;
+use MooseX::Role::Parameterized;
+
+enum EdgeShape => qw(solid doted dashed double);
+enum NodeShape => qw(disc square triangle diamond);
+
+parameter for => (
+    is       => 'ro',
+    required => 1,
+);
+
+role {
+    my $p = shift;
+
+    my ( $type, $default );
+
+    $type = ucfirst( $p->for ) . 'Shape';
+
+    if ( $p->for eq 'node' ) {
+        $default = 'disc';
+    }
+    else {
+        $default = 'solid';
+    }
+
+    has shape => (
+        is      => 'rw',
+        isa     => $type,
+        default => $default,
+        traits  => ['Chained'],
+    );
+};
+
+no Moose::Util::TypeConstraints;
+
+1;
+