diff options
| -rw-r--r-- | lib/axlsx/stylesheet/color.rb | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/lib/axlsx/stylesheet/color.rb b/lib/axlsx/stylesheet/color.rb index 2df70ee8..60d4c229 100644 --- a/lib/axlsx/stylesheet/color.rb +++ b/lib/axlsx/stylesheet/color.rb @@ -5,16 +5,19 @@ module Axlsx # @return [Boolean] attr_reader :auto - # Backwards compatability color index - # return [Integer] - #attr_reader :indexed - # The color as defined in rgb terms. # @note # rgb colors need to conform to ST_UnsignedIntHex. That basically means put 'FF' before you color - # @example rgb colors - # "FF000000" is black - # "FFFFFFFF" is white + # When assigning the rgb value the behavior is much like CSS selectors and can use shorthand versions as follows: + # If you provide a two character value it will be repeated for each r, g, b assignment + # If you provide data that is not 2 characters in length, and is less than 8 characters it will be padded with "F" + # @example + # Color.new :rgb => "FF000000" + # => #<Axlsx::Color:0x102106b68 @rgb="FF000000"> + # Color.new :rgb => "0A" + # => #<Axlsx::Color:0x102106b68 @rgb="FF0A0A0A"> + # Color.new :rgb => "00BB" + # => #<Axlsx::Color:0x102106b68 @rgb="FFFF00BB"> # @return [String] attr_reader :rgb @@ -39,8 +42,15 @@ module Axlsx end # @see auto def auto=(v) Axlsx::validate_boolean v; @auto = v end - # @see rgb - def rgb=(v) Axlsx::validate_string v; @rgb = v end + # @see color + def rgb=(v) + Axlsx::validate_string(v) + v.upcase! + v = v * 3 if v.size == 2 + v = v.rjust(8, 'FF') + raise ArgumentError, "Invalid color rgb value: #{v}." unless v.match(/[0-9A-F]{8}/) + @rgb = v + end # @see tint def tint=(v) Axlsx::validate_float v; @tint = v end |