Class: DYI::Color

Inherits:
Object
  • Object
show all
Defined in:
lib/dyi/color.rb,
lib/ironruby.rb

Overview

Since:

  • 0.0.0

Constant Summary collapse

@@named_colors =

Since:

  • 0.0.0

{'aliceblue'=>[240,248,255],'antiquewhite'=>[250,235,215],'aqua'=>[0,255,255],'aquamarine'=>[127,255,212],'azure'=>[240,255,255],'beige'=>[245,245,220],'bisque'=>[255,228,196],'black'=>[0,0,0],'blanchedalmond'=>[255,235,205],'blue'=>[0,0,255],'blueviolet'=>[138,43,226],'brown'=>[165,42,42],'burlywood'=>[222,184,135],'cadetblue'=>[95,158,160],'chartreuse'=>[127,255,0],'chocolate'=>[210,105,30],'coral'=>[255,127,80],'cornflowerblue'=>[100,149,237],'cornsilk'=>[255,248,220],'crimson'=>[220,20,60],'cyan'=>[0,255,255],'darkblue'=>[0,0,139],'darkcyan'=>[0,139,139],'darkgoldenrod'=>[184,134,11],'darkgray'=>[169,169,169],'darkgreen'=>[0,100,0],'darkgrey'=>[169,169,169],'darkkhaki'=>[189,183,107],'darkmagenta'=>[139,0,139],'darkolivegreen'=>[85,107,47],'darkorange'=>[255,140,0],'darkorchid'=>[153,50,204],'darkred'=>[139,0,0],'darksalmon'=>[233,150,122],'darkseagreen'=>[143,188,143],'darkslateblue'=>[72,61,139],'darkslategray'=>[47,79,79],'darkslategrey'=>[47,79,79],'darkturquoise'=>[0,206,209],'darkviolet'=>[148,0,211],'deeppink'=>[255,20,147],'deepskyblue'=>[0,191,255],'dimgray'=>[105,105,105],'dimgrey'=>[105,105,105],'dodgerblue'=>[30,144,255],'firebrick'=>[178,34,34],'floralwhite'=>[255,250,240],'forestgreen'=>[34,139,34],'fuchsia'=>[255,0,255],'gainsboro'=>[220,220,220],'ghostwhite'=>[248,248,255],'gold'=>[255,215,0],'goldenrod'=>[218,165,32],'gray'=>[128,128,128],'grey'=>[128,128,128],'green'=>[0,128,0],'greenyellow'=>[173,255,47],'honeydew'=>[240,255,240],'hotpink'=>[255,105,180],'indianred'=>[205,92,92],'indigo'=>[75,0,130],'ivory'=>[255,255,240],'khaki'=>[240,230,140],'lavender'=>[230,230,250],'lavenderblush'=>[255,240,245],'lawngreen'=>[124,252,0],'lemonchiffon'=>[255,250,205],'lightblue'=>[173,216,230],'lightcoral'=>[240,128,128],'lightcyan'=>[224,255,255],'lightgoldenrodyellow'=>[250,250,210],'lightgray'=>[211,211,211],'lightgreen'=>[144,238,144],'lightgrey'=>[211,211,211],'lightpink'=>[255,182,193],'lightsalmon'=>[255,160,122],'lightseagreen'=>[32,178,170],'lightskyblue'=>[135,206,250],'lightslategray'=>[119,136,153],'lightslategrey'=>[119,136,153],'lightsteelblue'=>[176,196,222],'lightyellow'=>[255,255,224],'lime'=>[0,255,0],'limegreen'=>[50,205,50],'linen'=>[250,240,230],'magenta'=>[255,0,255],'maroon'=>[128,0,0],'mediumaquamarine'=>[102,205,170],'mediumblue'=>[0,0,205],'mediumorchid'=>[186,85,211],'mediumpurple'=>[147,112,219],'mediumseagreen'=>[60,179,113],'mediumslateblue'=>[123,104,238],'mediumspringgreen'=>[0,250,154],'mediumturquoise'=>[72,209,204],'mediumvioletred'=>[199,21,133],'midnightblue'=>[25,25,112],'mintcream'=>[245,255,250],'mistyrose'=>[255,228,225],'moccasin'=>[255,228,181],'navajowhite'=>[255,222,173],'navy'=>[0,0,128],'oldlace'=>[253,245,230],'olive'=>[128,128,0],'olivedrab'=>[107,142,35],'orange'=>[255,165,0],'orangered'=>[255,69,0],'orchid'=>[218,112,214],'palegoldenrod'=>[238,232,170],'palegreen'=>[152,251,152],'paleturquoise'=>[175,238,238],'palevioletred'=>[219,112,147],'papayawhip'=>[255,239,213],'peachpuff'=>[255,218,185],'peru'=>[205,133,63],'pink'=>[255,192,203],'plum'=>[221,160,221],'powderblue'=>[176,224,230],'purple'=>[128,0,128],'red'=>[255,0,0],'rosybrown'=>[188,143,143],'royalblue'=>[65,105,225],'saddlebrown'=>[139,69,19],'salmon'=>[250,128,114],'sandybrown'=>[244,164,96],'seagreen'=>[46,139,87],'seashell'=>[255,245,238],'sienna'=>[160,82,45],'silver'=>[192,192,192],'skyblue'=>[135,206,235],'slateblue'=>[106,90,205],'slategray'=>[112,128,144],'slategrey'=>[112,128,144],'snow'=>[255,250,250],'springgreen'=>[0,255,127],'steelblue'=>[70,130,180],'tan'=>[210,180,140],'teal'=>[0,128,128],'thistle'=>[216,191,216],'tomato'=>[255,99,71],'turquoise'=>[64,224,208],'violet'=>[238,130,238],'wheat'=>[245,222,179],'white'=>[255,255,255],'whitesmoke'=>[245,245,245],'yellow'=>[255,255,0],'yellowgreen'=>[154,205,50]}
@@default_format =

Since:

  • 0.0.0

['#%02X%02X%02X', false]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Color

:call-seq: new (color_string) new (rgb_array) new (rgb_hash) new (red, green, blue) new (color)

Since:

  • 0.0.0



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# File 'lib/dyi/color.rb', line 37

def initialize(*args)
  case args.size
    when 1 then color = args.first
    when 3 then color = args
    else raise ArgumentError, "wrong number of arguments (#{args.size} for #{args.size == 0 ? 1 : 3})"
  end

  case color
  when Color
    @r = color.red
    @g = color.green
    @b = color.blue
    @name = color.name
  when Array
    raise ArgumentError, "illegal size of Array: #{color.size}" if color.size != 3
    @r, @g, @b = color.map {|c| c.to_i & 0xff}
    @name = nil
  when Hash
    @r, @g, @b = [:r, :g, :b].map {|key| color[key].to_i & 0xff}
    @name = nil
  when String, Symbol
    color = color.to_s
    if color =~ /^\s*#([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})\s*$/ # #ffffff
      @r, @g, @b = [$1, $2, $3].map {|s| s.hex}
      @name = nil
    elsif color =~ /^\s*#([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])\s*$/ # #fff
      @r, @g, @b = [$1, $2, $3].map {|s| (s * 2).hex}
      @name = nil
    elsif color =~ /^\s*rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)\s*$/ # rgb(255,255,255)
      @r, @g, @b = [$1, $2, $3].map {|s| s.to_i & 0xff}
      @name = nil
    elsif color =~ /^\s*rgb\s*\(\s*(\d+)%\s*,\s*(\d+)%\s*,\s*(\d+)%\s*\)\s*$/ # rgb(100%,100%,100%)
      @r, @g, @b = [$1, $2, $3].map {|s| (0xff * s.to_f / 100).to_i & 0xff}
      @name = nil
    else
      raise ArgumentError, "argument is empty" if color.size == 0
      raise ArgumentError, "`#{color}' is unknown color" unless rgb = @@named_colors[color.downcase]
      @r, @g, @b = rgb
      @name = color.downcase
    end
  else
    raise TypeError, "#{color.class} can't be coerced into #{self.class}"
  end
end

Instance Attribute Details

#name ⇒ Object (readonly)

Since:

  • 0.0.0



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# File 'lib/dyi/color.rb', line 29

def name
  @name
end

Class Method Details

.check_format(fmt) ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/color.rb', line 197

def check_format(fmt)
  begin
    (fmt = fmt.to_s) % [0.0, 0.0, 0.0]
    fmt
  rescue
    raise ArgumentError, "wrong format: `#{fmt}'"
  end
end

.default_format ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/color.rb', line 193

def default_format
  @@default_format
end

.method_missing(name, *args) ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/color.rb', line 172

def method_missing(name, *args)
  if args.size == 0 && color = named_color(name)
    instance_eval %{
      def self.#{name}
        @#{name}
      end
    }
    return color
  end
  super
end

.new(*args) ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/color.rb', line 154

def new(*args)
  if args.size == 1
    case args.first
    when self
      return args.first
    when String, Symbol
      if color = named_color(args.first)
        return color
      end
    end
  end
  super
end

.new_or_nil(*args) ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/color.rb', line 168

def new_or_nil(*args)
  (args.size == 1 && args.first.nil?) ? nil : new(*args)
end

.set_default_format(fmt, disp_ratio = false) ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/color.rb', line 184

def set_default_format(fmt, disp_ratio=false)
  org_format = @@default_format
  @@default_format = [check_format(fmt), disp_ratio]
  if block_given?
    yield
    @@default_format = org_format
  end
end

Instance Method Details

#==(other) ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/color.rb', line 82

def ==(other)
  return false unless other.instance_of?(self.class)
  @r == other.red && @g == other.green && @b = other.blue
end

#blue ⇒ Object

Since:

  • 0.0.0



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# File 'lib/dyi/color.rb', line 108

def blue
  @b
end

#color? ⇒ Boolean

Returns:

  • (Boolean)

Since:

  • 0.0.0



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# File 'lib/dyi/color.rb', line 133

def color?
  true
end

#create_cls_brush(opacity = nil, shape = nil) ⇒ Object

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  • 0.0.0



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# File 'lib/ironruby.rb', line 62

def create_cls_brush(opacity=nil, shape=nil)
  System::Drawing::SolidBrush.new(to_cls_color(opacity))
end

#create_cls_pen(opacity = nil) ⇒ Object

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  • 0.0.0



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# File 'lib/ironruby.rb', line 58

def create_cls_pen(opacity=nil)
  System::Drawing::Pen.new(to_cls_color(opacity))
end

#eql?(other) ⇒ Boolean

Returns:

  • (Boolean)

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  • 0.0.0



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# File 'lib/dyi/color.rb', line 87

def eql?(other)
  return false unless self.class == other.class
  self == other
end

#green ⇒ Object

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  • 0.0.0



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# File 'lib/dyi/color.rb', line 104

def green
  @g
end

#hash ⇒ Object

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  • 0.0.0



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# File 'lib/dyi/color.rb', line 92

def hash
  (@r << 16) + (@g << 8) + @b 
end

#merge(other, ratio) ⇒ Object

Raises:

  • (ArgumentError)

Since:

  • 0.0.0



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# File 'lib/dyi/color.rb', line 124

def merge(other, ratio)
  raise ArgumentError, "ratio should be number between 0 and 1" if ratio < 0 || 1 < ratio
  other = self.class.new(other)
  r = @r * (1.0 - ratio) + other.red * ratio
  g = @g * (1.0 - ratio) + other.green * ratio
  b = @b * (1.0 - ratio) + other.blue * ratio
  self.class.new(r,g,b)
end

#named? ⇒ Boolean

Returns:

  • (Boolean)

Since:

  • 0.0.0



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# File 'lib/dyi/color.rb', line 96

def named?
  not @name.nil?
end

#r_blue ⇒ Object

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  • 0.0.0



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# File 'lib/dyi/color.rb', line 120

def r_blue
  @b.quo(0.255).floor.quo(1000.0)
end

#r_green ⇒ Object

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  • 0.0.0



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# File 'lib/dyi/color.rb', line 116

def r_green
  @g.quo(0.255).floor.quo(1000.0)
end

#r_red ⇒ Object

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  • 0.0.0



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# File 'lib/dyi/color.rb', line 112

def r_red
  @r.quo(0.255).floor.quo(1000.0)
end

#red ⇒ Object

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  • 0.0.0



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# File 'lib/dyi/color.rb', line 100

def red
  @r
end

#to_cls_color(opacity = nil) ⇒ Object

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  • 0.0.0



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# File 'lib/ironruby.rb', line 50

def to_cls_color(opacity=nil)
  if opacity
    System::Drawing::Color.from_argb((opacity.to_f * 255).to_i, @r, @g, @b)
  else
    System::Drawing::Color.from_argb(@r, @g, @b)
  end
end

#to_s(*args) ⇒ Object

:call-seq: to_s () to_s (fmt, disp_ratio=false)

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  • 0.0.0



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# File 'lib/dyi/color.rb', line 140

def to_s(*args)
  args[0] = self.class.check_format(args[0]) if args[0]
  args = @@default_format if args.empty?
  args[0] % (args[1] ? [r_red, r_green, r_blue] : [@r,@g,@b])
end

#to_s16(opacity = nil) ⇒ Object

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  • 0.0.0



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# File 'lib/dyi/color.rb', line 146

def to_s16(opacity=nil)
  opacity ? '#%02X%02X%02X%02X' % [0xff && (0xff * opacity), @r,@g,@b] : to_s('#%02X%02X%02X')
end