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