Class: ColorScheme

Inherits:
Object show all
Defined in:
lib/color_scheme.rb

Overview

A class that represents a color scheme based on configurable parameters that determine how the RGB values are calculated for a given string segment.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(base_red, multiplier_red, modulus_red, base_green, multiplier_green, modulus_green, base_blue, multiplier_blue, modulus_blue) ⇒ ColorScheme

Initializes a new ColorScheme object with base values, multipliers, and moduli for the red, green, and blue components of an RGB color.

Parameters:

  • base_red (Integer) —

    Base red component value.

  • multiplier_red (Integer) —

    Multiplier for red component based on string hash.

  • modulus_red (Integer) —

    Modulus for calculating red component.

  • base_green (Integer) —

    Base green component value.

  • multiplier_green (Integer) —

    Multiplier for green component based on string hash.

  • modulus_green (Integer) —

    Modulus for calculating green component.

  • base_blue (Integer) —

    Base blue component value.

  • multiplier_blue (Integer) —

    Multiplier for blue component based on string hash.

  • modulus_blue (Integer) —

    Modulus for calculating blue component.



23
24
25
26
27
28
29
30
31
32
33
34
35
 
# File 'lib/color_scheme.rb', line 23

def initialize(base_red, multiplier_red, modulus_red,
               base_green, multiplier_green, modulus_green,
               base_blue, multiplier_blue, modulus_blue)
  @base_red = base_red
  @multiplier_red = multiplier_red
  @modulus_red = modulus_red
  @base_green = base_green
  @multiplier_green = multiplier_green
  @modulus_green = modulus_green
  @base_blue = base_blue
  @multiplier_blue = multiplier_blue
  @modulus_blue = modulus_blue
end

Instance Attribute Details

#base_blue ⇒ Object

Returns the value of attribute base_blue.



8
9
10
 
# File 'lib/color_scheme.rb', line 8

def base_blue
  @base_blue
end

#base_green ⇒ Object

Returns the value of attribute base_green.



8
9
10
 
# File 'lib/color_scheme.rb', line 8

def base_green
  @base_green
end

#base_red ⇒ Object

Returns the value of attribute base_red.



8
9
10
 
# File 'lib/color_scheme.rb', line 8

def base_red
  @base_red
end

#modulus_blue ⇒ Object

Returns the value of attribute modulus_blue.



8
9
10
 
# File 'lib/color_scheme.rb', line 8

def modulus_blue
  @modulus_blue
end

#modulus_green ⇒ Object

Returns the value of attribute modulus_green.



8
9
10
 
# File 'lib/color_scheme.rb', line 8

def modulus_green
  @modulus_green
end

#modulus_red ⇒ Object

Returns the value of attribute modulus_red.



8
9
10
 
# File 'lib/color_scheme.rb', line 8

def modulus_red
  @modulus_red
end

#multiplier_blue ⇒ Object

Returns the value of attribute multiplier_blue.



8
9
10
 
# File 'lib/color_scheme.rb', line 8

def multiplier_blue
  @multiplier_blue
end

#multiplier_green ⇒ Object

Returns the value of attribute multiplier_green.



8
9
10
 
# File 'lib/color_scheme.rb', line 8

def multiplier_green
  @multiplier_green
end

#multiplier_red ⇒ Object

Returns the value of attribute multiplier_red.



8
9
10
 
# File 'lib/color_scheme.rb', line 8

def multiplier_red
  @multiplier_red
end

Class Method Details

.colorize_path(path) ⇒ String

Applies color codes to each segment of a filesystem path, differentiating the final segment from others using a distinct color scheme.

Parameters:

  • path (String) —

    The filesystem path to colorize.

Returns:

  • (String) —

    The colorized path.



53
54
55
56
57
58
59
60
61
62
63
64
 
# File 'lib/color_scheme.rb', line 53

def self.colorize_path(path)
  segments = path.split('/')
  segments.map.with_index do |segment, index|
    color_scheme = if index == segments.size - 1
                     ColorScheme.new(192, 0, 1, 192, 0, 1, 192, 0, 1)
                   else
                     ColorScheme.new(32, 1, 192, 32, 1, 192, 255, 0, 1)
                   end

    color_scheme.color_for(segment)
  end.join('/')
end

Instance Method Details

#color_for(segment) ⇒ String

Calculates and returns the ANSI escape code for coloring a string segment based on its hash value.

Parameters:

  • segment (String) —

    The string segment to color.

Returns:

  • (String) —

    ANSI escape code string with RGB color formatting.



41
42
43
44
45
46
47
 
# File 'lib/color_scheme.rb', line 41

def color_for(segment)
  hash_value = segment.each_byte.reduce(0, :+)
  red = @base_red + (@multiplier_red * (hash_value % @modulus_red))
  green = @base_green + (@multiplier_green * (hash_value % @modulus_green))
  blue = @base_blue + (@multiplier_blue * (hash_value % @modulus_blue))
  "\e[38;2;#{red};#{green};#{blue}m#{segment}\e[0m"
end