Class: UtilityPalettes::Sequences

Inherits:
Object
  • Object
show all
Defined in:
lib/utility_palettes/sequences.rb

Class Method Summary collapse

Class Method Details

.hsl(colour, level_change) ⇒ Object 



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# File 'lib/utility_palettes/sequences.rb', line 10

def self.hsl(colour, level_change)
  colour_hsl = colour.hsl
  configuration = UtilityPalettes.configuration

  # Use BigDecimal for precise decimal arithmetic
  h_value = (BigDecimal(colour_hsl[:h].to_s) - BigDecimal((level_change * configuration.steps_h).to_s)) % 360
  s_value = (BigDecimal(colour_hsl[:s].to_s) - BigDecimal((level_change * configuration.steps_s).to_s)).clamp(0, 100)
  l_value = (BigDecimal(colour_hsl[:l].to_s) - BigDecimal((level_change * configuration.steps_l).to_s)).clamp(0, 100)

  ColorConverters::Color.new(h: h_value.to_f, s: s_value.to_f, l: l_value.to_f)
end

.rgb(colour, level_change) ⇒ Object 



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# File 'lib/utility_palettes/sequences.rb', line 22

def self.rgb(colour, level_change)
  colour_rgb = colour.rgb
  configuration = UtilityPalettes.configuration

  # Use BigDecimal for precise decimal arithmetic
  r_value = (BigDecimal(colour_rgb[:r].to_s) - BigDecimal((level_change * configuration.steps_r).to_s)).clamp(0, 255)
  g_value = (BigDecimal(colour_rgb[:g].to_s) - BigDecimal((level_change * configuration.steps_g).to_s)).clamp(0, 255)
  b_value = (BigDecimal(colour_rgb[:b].to_s) - BigDecimal((level_change * configuration.steps_b).to_s)).clamp(0, 255)

  ColorConverters::Color.new(r: r_value.to_f, g: g_value.to_f, b: b_value.to_f)
end