Class: HexaPDF::Content::ColorSpace::DeviceGray::Color

Inherits:

Object

• Object
• HexaPDF::Content::ColorSpace::DeviceGray::Color

Includes:

ColorUtils

Defined in:

lib/hexapdf/content/color_space.rb

Overview

A color in the DeviceGray color space.

Color values can either be integers in the range from 0 to 255 or floating point numbers between 0.0 and 1.0. The integer color values are automatically normalized to the DeviceGray color value range of 0.0 to 1.0.

See: PDF1.7 s8.6.4.2

Instance Method Summary

• #color_space ⇒ Object

  Returns the DeviceGray color space module.

• #components ⇒ Object

  Returns the normalized gray value as an array.

• #initialize(gray) ⇒ Color constructor

  Initializes the color with the gray component.

Methods included from ColorUtils

#==

Constructor Details

#initialize(gray) ⇒ Color

Initializes the color with the gray component.

The argument gray has to be either an integer between 0 and 255 or a float between 0.0 and 1.0.

# File 'lib/hexapdf/content/color_space.rb', line 343

def initialize(gray)
  @gray = normalize_value(gray, 255)
end

Instance Method Details

#color_space ⇒ Object

Returns the DeviceGray color space module.

# File 'lib/hexapdf/content/color_space.rb', line 348

def color_space
  DeviceGray::DEFAULT
end

#components ⇒ Object

Returns the normalized gray value as an array.

# File 'lib/hexapdf/content/color_space.rb', line 353

def components
  [@gray]
end