Class: Spreadsheet::Excel::Rgb

Inherits:
Object
  • Object
show all
Defined in:
lib/spreadsheet/excel/rgb.rb

Constant Summary collapse

@@RGB_MAP = 
{
  :xls_color_0     => 0x000000,
  :xls_color_1     => 0xffffff,
  :xls_color_2     => 0xff0000,
  :xls_color_3     => 0x00ff00,
  :xls_color_4     => 0x0000ff,
  :xls_color_5     => 0xffff00,
  :xls_color_6     => 0xff00ff,
  :xls_color_7     => 0x00ffff,
  :xls_color_8     => 0x800000,
  :xls_color_9     => 0x008000,
  :xls_color_10    => 0x008000,
  :xls_color_11    => 0x000080,
  :xls_color_12    => 0x808080,
  :xls_color_13    => 0x008080,
  :xls_color_14    => 0xc0c0c0,
  :xls_color_15    => 0x808080,
  :xls_color_16    => 0x9999ff,
  :xls_color_17    => 0x993366,
  :xls_color_18    => 0xffffcc,
  :xls_color_19    => 0xccffff,
  :xls_color_20    => 0x660066,
  :xls_color_21    => 0xff8080,
  :xls_color_22    => 0x0066cc,
  :xls_color_23    => 0xccccff,
  :xls_color_24    => 0x000080,
  :xls_color_25    => 0xff00ff,
  :xls_color_26    => 0xffff00,
  :xls_color_27    => 0x00ffff,
  :xls_color_28    => 0x800080,
  :xls_color_29    => 0x800000,
  :xls_color_30    => 0x008080,
  :xls_color_31    => 0x0000ff,
  :xls_color_32    => 0x00ccff,
  :xls_color_33    => 0xccffff,
  :xls_color_34    => 0xccffcc,
  :xls_color_35    => 0xffff99,
  :xls_color_36    => 0x99ccff,
  :xls_color_37    => 0xff99cc,
  :xls_color_38    => 0xcc99ff,
  :xls_color_39    => 0xffcc99,
  :xls_color_40    => 0x3366ff,
  :xls_color_41    => 0x33cccc,
  :xls_color_42    => 0x99cc00,
  :xls_color_43    => 0xffcc00,
  :xls_color_44    => 0xff9900,
  :xls_color_45    => 0xff6600,
  :xls_color_46    => 0x666699,
  :xls_color_47    => 0x969696,
  :xls_color_48    => 0x003366,
  :xls_color_49    => 0x339966,
  :xls_color_50    => 0x003300,
  :xls_color_51    => 0x333300,
  :xls_color_52    => 0x993300,
  :xls_color_53    => 0x993366,
  :xls_color_54    => 0x333399,
  :xls_color_55    => 0x333333,
  :builtin_black   => 0x000000,
  :builtin_white   => 0xffffff,
  :builtin_red     => 0xff0000,
  :builtin_green   => 0x00ff00,
  :builtin_blue    => 0x0000ff,
  :builtin_yellow  => 0xffff00,
  :builtin_magenta => 0xff00ff,
  :builtin_cyan    => 0x00ffff,
  :aqua            => 0x00ffff,
  :black           => 0x000000,
  :blue            => 0x0000ff,
  :cyan            => 0x00ffff,
  :brown           => 0x800000,
  :fuchsia         => 0xff00ff,
  :gray            => 0x808080,
  :grey            => 0x808080,
  :green           => 0x008000,
  :lime            => 0x00ff00,
  :magenta         => 0xff00ff,
  :navy            => 0x000080,
  :orange          => 0xff9900,
  :purple          => 0x800080,
  :red             => 0xff0000,
  :silver          => 0xc0c0c0,
  :white           => 0xffffff,
  :yellow          => 0xffff00
}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(r, g, b) ⇒ Rgb

Returns a new instance of Rgb.



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# File 'lib/spreadsheet/excel/rgb.rb', line 107

def initialize(r,g,b)
   @r = r & 0xff
   @g = g & 0xff
   @b = b & 0xff
end

Instance Attribute Details

#b ⇒ Object

Returns the value of attribute b.



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# File 'lib/spreadsheet/excel/rgb.rb', line 14

def b
  @b
end

#g ⇒ Object

Returns the value of attribute g.



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# File 'lib/spreadsheet/excel/rgb.rb', line 14

def g
  @g
end

#r ⇒ Object

Returns the value of attribute r.



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# File 'lib/spreadsheet/excel/rgb.rb', line 14

def r
  @r
end

Class Method Details

.to_rgb(color_symbol) ⇒ Object 



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# File 'lib/spreadsheet/excel/rgb.rb', line 101

def self.to_rgb color_symbol
  col = @@RGB_MAP[color_symbol]
  return Rgb.new(col >> 16, (col & 0xff00) >> 8, col & 0xff) if col
  nil
end

Instance Method Details

#as_hex ⇒ Object 



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# File 'lib/spreadsheet/excel/rgb.rb', line 117

def as_hex
   to_i.to_s(16)
end

#to_i ⇒ Object 



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# File 'lib/spreadsheet/excel/rgb.rb', line 113

def to_i
   (r * (256 * 256)) + (g * 256) + b
end