diff options
Diffstat (limited to 'lib/paperclip/color_extractor.rb')
-rw-r--r-- | lib/paperclip/color_extractor.rb | 36 |
1 files changed, 17 insertions, 19 deletions
diff --git a/lib/paperclip/color_extractor.rb b/lib/paperclip/color_extractor.rb index d3b8e1022..2e8dc04fd 100644 --- a/lib/paperclip/color_extractor.rb +++ b/lib/paperclip/color_extractor.rb @@ -79,8 +79,8 @@ module Paperclip private def w3c_contrast(color1, color2) - luminance1 = color1.to_xyz.y * 0.01 + 0.05 - luminance2 = color2.to_xyz.y * 0.01 + 0.05 + luminance1 = (color1.to_xyz.y * 0.01) + 0.05 + luminance2 = (color2.to_xyz.y * 0.01) + 0.05 if luminance1 > luminance2 luminance1 / luminance2 @@ -109,11 +109,11 @@ module Paperclip case max when r - h = (g - b) / d + (g < b ? 6.0 : 0) + h = ((g - b) / d) + (g < b ? 6.0 : 0) when g - h = (b - r) / d + 2.0 + h = ((b - r) / d) + 2.0 when b - h = (r - g) / d + 4.0 + h = ((r - g) / d) + 4.0 end h /= 6.0 @@ -126,9 +126,9 @@ module Paperclip t += 1 if t.negative? t -= 1 if t > 1 - return (p + (q - p) * 6 * t) if t < 1 / 6.0 + return (p + ((q - p) * 6 * t)) if t < 1 / 6.0 return q if t < 1 / 2.0 - return (p + (q - p) * (2 / 3.0 - t) * 6) if t < 2 / 3.0 + return (p + ((q - p) * ((2 / 3.0) - t) * 6)) if t < 2 / 3.0 p end @@ -147,11 +147,11 @@ module Paperclip g = l.to_f b = l.to_f # achromatic else - q = l < 0.5 ? l * (s + 1) : l + s - l * s - p = 2 * l - q - r = hue_to_rgb(p, q, h + 1 / 3.0) + q = l < 0.5 ? l * (s + 1) : l + s - (l * s) + p = (2 * l) - q + r = hue_to_rgb(p, q, h + (1 / 3.0)) g = hue_to_rgb(p, q, h) - b = hue_to_rgb(p, q, h - 1 / 3.0) + b = hue_to_rgb(p, q, h - (1 / 3.0)) end [(r * 255).round, (g * 255).round, (b * 255).round] @@ -161,13 +161,11 @@ module Paperclip def lighten_or_darken(color, by) hue, saturation, light = rgb_to_hsl(color.r, color.g, color.b) - light = begin - if light < 50 - [100, light + by].min - else - [0, light - by].max - end - end + light = if light < 50 + [100, light + by].min + else + [0, light - by].max + end ColorDiff::Color::RGB.new(*hsl_to_rgb(hue, saturation, light)) end @@ -185,7 +183,7 @@ module Paperclip end def rgb_to_hex(rgb) - '#%02x%02x%02x' % [rgb.r, rgb.g, rgb.b] + format('#%02x%02x%02x', rgb.r, rgb.g, rgb.b) end end end |