4 files changed, 76 insertions, 0 deletions
diff --git a/lib/Graph/GEXF/Role/Viz/Color.pm b/lib/Graph/GEXF/Role/Viz/Color.pm
new file mode 100644
index 0000000..166186f
--- /dev/null
+++ b/lib/Graph/GEXF/Role/Viz/Color.pm
@@ -0,0 +1,16 @@
+package Graph::GEXF::Role::Viz::Color;
+
+use Moose::Role;
+use Moose::Util::TypeConstraints;
+
+subtype RGBColor => as 'Int' => where { $_ >= 0 && $_ <= 255 };
+
+has [qw/r g b/] => (
+    is  => 'rw',
+    isa => 'RGBColor',
+);
+
+no Moose::Util::TypeConstraints;
+no Moose::Role;
+
+1;
diff --git a/lib/Graph/GEXF/Role/Viz/Position.pm b/lib/Graph/GEXF/Role/Viz/Position.pm
new file mode 100644
index 0000000..4871df2
--- /dev/null
+++ b/lib/Graph/GEXF/Role/Viz/Position.pm
@@ -0,0 +1,12 @@
+package Graph::GEXF::Role::Viz::Position;
+
+use Moose::Role;
+
+has [qw/x y z/] => (
+    is  => 'rw',
+    isa => 'Num',
+);
+
+no Moose::Role;
+
+1;
diff --git a/lib/Graph/GEXF/Role/Viz/Shape.pm b/lib/Graph/GEXF/Role/Viz/Shape.pm
new file mode 100644
index 0000000..f522786
--- /dev/null
+++ b/lib/Graph/GEXF/Role/Viz/Shape.pm
@@ -0,0 +1,28 @@
+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 = lcfirst( $p->for ) . 'Shape';
+
+    has shape => (
+        is  => 'rw',
+        isa => $type,
+    );
+};
+
+no Moose::Util::TypeConstraints;
+
+1;
+
diff --git a/lib/Graph/GEXF/Role/Viz/Size.pm b/lib/Graph/GEXF/Role/Viz/Size.pm
new file mode 100644
index 0000000..d192db6
--- /dev/null
+++ b/lib/Graph/GEXF/Role/Viz/Size.pm
@@ -0,0 +1,20 @@
+package Graph::GEXF::Role::Viz::Size;
+
+use MooseX::Role::Parameterized;
+
+parameter as => (
+    is       => 'ro',
+    required => 1,
+);
+
+role {
+    my $p = shift;
+
+    has $p->as => (
+        is      => 'rw',
+        isa     => 'Num',
+        default => '1.0',
+    );
+};
+
+1;