Class: HashAvatar

Inherits:
Object
  • Object
show all
Includes:
Magick
Defined in:
lib/hash_avatar.rb

Defined Under Namespace

Classes: Icon

Constant Summary collapse

BackgroundColor = 
"white"
FrontColor = 
"black"
ICON_ROWS = 
64
ICON_COLS = 
64
QUARTER_ROWS = 
ICON_ROWS << 1
QUARTER_COLS = 
ICON_COLS << 1
AVATAR_ROWS = 
ICON_ROWS << 2
AVATAR_COLS = 
ICON_COLS << 2

Class Method Summary collapse

Class Method Details

.gen(string = 'paolongtao') ⇒ Object 



31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
 
# File 'lib/hash_avatar.rb', line 31

def self.gen(string='paolongtao')
  
  hash = Digest::SHA1.hexdigest(string)
  self.get_icons
  @@avatar = Image.new(AVATAR_COLS, AVATAR_ROWS)
  quarter = Image.new(QUARTER_COLS, QUARTER_ROWS)

  hash_slice = []
  for i in 0..5 do
    hash_slice << hash.slice(i*4, 4)
  end

  icon_method_index = []
  for i in 0..4 do
    icon_method_index << Integer("0x#{hash_slice[i]}") % @@icon_method_size
  end
  icon_method_index << Integer("0x#{hash_slice[i]}") % Magick.colors.size

  #Icon.singleton_methods
  #Icon.send :method
  gc = Magick::Draw.new
  gc.composite(0, 0, 0, 0, Icon.send(@@icon_method[icon_method_index[0]]))
  gc.composite(ICON_COLS, 0, 0, 0, Icon.send(@@icon_method[icon_method_index[1]]))
  gc.composite(0, ICON_ROWS, 0, 0, Icon.send(@@icon_method[icon_method_index[2]]))
  gc.composite(ICON_COLS, ICON_ROWS, 0, 0, Icon.send(@@icon_method[icon_method_index[3]]))
  gc.draw(quarter)

  color = Magick.colors[icon_method_index[4]].name
  quarter = quarter.opaque_channel(FrontColor, color, false, 10000, Magick::AllChannels)

  gc.composite(0, 0, 0, 0, quarter)
  gc.composite(QUARTER_COLS, 0, 0, 0, quarter.flop)
  gc.composite(0, QUARTER_ROWS, 0, 0, quarter.flip)
  gc.composite(QUARTER_COLS, QUARTER_ROWS, 0, 0, quarter.flop.flip)
  gc.draw(@@avatar)

  return @@avatar
end

.get_icons ⇒ Object 



26
27
28
29
 
# File 'lib/hash_avatar.rb', line 26

def self.get_icons
  @@icon_method = Icon.singleton_methods
  @@icon_method_size = @@icon_method.size
end

.hi ⇒ Object 



8
9
10
 
# File 'lib/hash_avatar.rb', line 8

def self.hi
  puts "HashAvatar"
end