Class: Scruffy::Formatters::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/scruffy/formatters.rb

Overview

Scruffy::Formatters::Base

Author

Brasten Sager

Date

August 16th, 2006

Formatters are used to format the values displayed on the y-axis by setting graph.value_formatter.

Direct Known Subclasses

Currency, Custom, Number, Percentage

Instance Method Summary collapse

Instance Method Details

#route_format(target, idx, options = {}) ⇒ Object

Called by the value marker component. Routes the format call to one of a couple possible methods.

If the formatter defines a #format method, the returned value is used as the value. If the formatter defines a #format! method, the value passed is expected to be modified, and is used as the value. (This may not actually work, in hindsight.)



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# File 'lib/scruffy/formatters.rb', line 31

def route_format(target, idx, options = {})
  args = [target, idx, options]
  if respond_to?(:format)
    send :format, *args[0...self.method(:format).arity]
  elsif respond_to?(:format!)
    send :format!, *args[0...self.method(:format!).arity]
    target
  else
    raise NameError, "Formatter subclass must container either a format() method or format!() method."
  end
end