Class: Accessibility::Graph::Edge

Inherits:

Object

• Object
• Accessibility::Graph::Edge

Defined in:

lib/accessibility/graph.rb

Overview

An edge in the UI hierarchy. Used by Accessibility::Graph in order to build Graphviz DOT graphs.

Instance Attribute Summary

• #style ⇒ String

  The style of arrowhead to use.

Instance Method Summary

• #initialize(head, tail) ⇒ Edge constructor

  A new instance of Edge.

• #to_dot ⇒ String

Constructor Details

#initialize(head, tail) ⇒ Edge

Returns a new instance of Edge.

Parameters:

• head (Accessibility::Graph::Node)
• tail (Accessibility::Graph::Node)

# File 'lib/accessibility/graph.rb', line 137

def initialize head, tail
  @head, @tail = head, tail
end

Instance Attribute Details

#style ⇒ String

The style of arrowhead to use

Returns:

• (String)

# File 'lib/accessibility/graph.rb', line 133

def style
  @style
end

Instance Method Details

#to_dot ⇒ String

Returns:

• (String)

# File 'lib/accessibility/graph.rb', line 142

def to_dot
  arrow = style ? style : 'normal'
  "#{@head.id} -> #{@tail.id} [arrowhead = #{arrow}]"
end