Class: Cairo::Color::Base

Inherits:

Object

• Object
• Cairo::Color::Base

Defined in:

lib/cairo/color.rb

Direct Known Subclasses

CMYK, HSV, RGB

Instance Attribute Summary

• #alpha ⇒ Object (also: #a)

  Returns the value of attribute alpha.

Instance Method Summary

• #initialize(a) ⇒ Base constructor

  A new instance of Base.

Constructor Details

#initialize(a) ⇒ Base

Returns a new instance of Base.

# File 'lib/cairo/color.rb', line 57

def initialize(a)
  assert_in_range(a, "alpha channel")
  @alpha = a
end

Instance Attribute Details

#alpha ⇒ Object Also known as: a

Returns the value of attribute alpha.

# File 'lib/cairo/color.rb', line 52

def alpha
  @alpha
end