Class: HexaPDF::Content::ColorSpace::DeviceRGB

Inherits:
Object
  • Object
show all
Defined in:
lib/hexapdf/content/color_space.rb

Overview

The DeviceRGB color space.

Defined Under Namespace

Classes: Color

Constant Summary collapse

DEFAULT =

The one (and only) DeviceRGB color space.

new

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.new(_definition = nil) ⇒ Object

Returns the DeviceRGB color space object.



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# File 'lib/hexapdf/content/color_space.rb', line 437

def self.new(_definition = nil)
  DEFAULT
end

Instance Method Details

#color(r, g, b) ⇒ Object

Returns the color object for the red, green and blue components.

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 DeviceRGB color value range of 0.0 to 1.0.



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# File 'lib/hexapdf/content/color_space.rb', line 451

def color(r, g, b)
  Color.new(ColorUtils.normalize_value(r, 255),
            ColorUtils.normalize_value(g, 255),
            ColorUtils.normalize_value(b, 255))
end

#default_color ⇒ Object

Returns the default color for the DeviceRGB color space.



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# File 'lib/hexapdf/content/color_space.rb', line 442

def default_color
  Color.new(0.0, 0.0, 0.0)
end

#family ⇒ Object Also known as: definition

Returns :DeviceRGB.



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# File 'lib/hexapdf/content/color_space.rb', line 466

def family
  :DeviceRGB
end

#prenormalized_color(r, g, b) ⇒ Object

Returns the color object for the red, green and blue components without applying value normalization.

See: #color



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# File 'lib/hexapdf/content/color_space.rb', line 461

def prenormalized_color(r, g, b)
  Color.new(r, g, b)
end