Merge pull request #19 from Dreamersoul/master

Users Can Define Custom Palettes

lib/letter_avatar/avatar.rb

@@ -5,7 +5,7 @@ class Avatar
 
     # Largest avatar generated, one day when pixel ratio hit 3
     # we will need to change this
-    FULLSIZE = 240
+    FULLSIZE = 600
 
     FILL_COLOR = 'rgba(255, 255, 255, 0.65)'.freeze
 

lib/letter_avatar/colors.rb

@@ -1,6 +1,6 @@
 module LetterAvatar
   module Colors
-    PALETTES = [:google, :iwanthue]
+    PALETTES = [:google, :iwanthue, :custom]
 
     GOOGLE_COLORS = [
       [226, 95, 81], # A
@@ -274,6 +274,19 @@ def self.with_google(username)
       end
     end
 
+		def self.with_custom(username)
+			custom_palette = LetterAvatar.custom_palette
+			custom_palette[Digest::MD5.hexdigest(username)[0...15].to_i(16) % custom_palette.length]
+		end
+
+		def self.valid_custom_palette?(palette)
+			return false unless palette.is_a?(Array)
+			return palette.all? do |color| 
+				false unless color.is_a?(Array)
+				color.all? { |i| i.is_a?(Integer) }
+			end
+		end
+
     # Colors form Google Inbox
     # https://inbox.google.com
     def self.google

lib/letter_avatar/configuration.rb

@@ -21,9 +21,19 @@ def colors_palette
     end
 
     def colors_palette=(v)
-      @colors_palette = v if v.in?(Colors::PALETTES)
+      @colors_palette = v if Colors::PALETTES.include?(v)
     end
 
+		def custom_palette
+      @custom_palette ||= nil
+		end
+
+		def custom_palette=(v)
+      @custom_palette = v
+      raise "Missing Custom Palette, please set config.custom_palette if using :custom" if @custom_palette.nil? && @colors_palette == :custom
+			raise "Invalid Custom Palette, please update config.custom_palette" unless Colors::valid_custom_palette?(@custom_palette)
+		end
+
     def weight
       @weight ||= 300
     end