# File lib/gruff/photo_bar.rb, line 26
26:   def draw
27:     super
28:     return unless @has_data
29: 
30:     return # TODO Remove for further development
31: 
32:     init_photo_bar_graphics()
33:     
34:     #Draw#define_clip_path()
35:     #Draw#clip_path(pathname)
36:     #Draw#composite....with bar graph image OverCompositeOp
37:     #
38:     # See also
39:     #
40:     # Draw.pattern # define an image to tile as the filling of a draw object
41:     # 
42: 
43:     # Setup spacing.
44:     #
45:     # Columns sit side-by-side.
46:     spacing_factor = 0.9
47:     @bar_width = @norm_data[0][DATA_COLOR_INDEX].columns
48: 
49:     @norm_data.each_with_index do |data_row, row_index|
50:   
51:       data_row[DATA_VALUES_INDEX].each_with_index do |data_point, point_index|
52:         data_point = 0 if data_point.nil?
53:         # Use incremented x and scaled y
54:         left_x = @graph_left + (@bar_width * (row_index + point_index + ((@data.length - 1) * point_index)))
55:         left_y = @graph_top + (@graph_height - data_point * @graph_height) + 1
56:         right_x = left_x + @bar_width * spacing_factor
57:         right_y = @graph_top + @graph_height - 1
58:       
59:         bar_image_width = data_row[DATA_COLOR_INDEX].columns
60:         bar_image_height = right_y.to_f - left_y.to_f
61:       
62:         # Crop to scale for data
63:         bar_image = data_row[DATA_COLOR_INDEX].crop(0, 0, bar_image_width, bar_image_height)
64:         
65:         @d.gravity = NorthWestGravity
66:         @d = @d.composite(left_x, left_y, bar_image_width, bar_image_height, bar_image)
67:       
68:         # Calculate center based on bar_width and current row
69:         label_center = @graph_left + (@data.length * @bar_width * point_index) + (@data.length * @bar_width / 2.0)
70:         draw_label(label_center, point_index)
71:       end
72: 
73:     end
74: 
75:     @d.draw(@base_image)    
76:   end

    # File lib/gruff/photo_bar.rb, line 80
80:   def theme
81:     @theme || 'plastik'
82:   end

    # File lib/gruff/photo_bar.rb, line 88
88:   def init_photo_bar_graphics    
89:     color_list = Array.new
90:     theme_dir = File.dirname(__FILE__) + '/../../assets/' + theme
91: 
92:     Dir.open(theme_dir).each do |file|
93:       next unless /\.png$/.match(file)
94:       color_list << Image.read("#{theme_dir}/#{file}").first
95:     end
96:     @colors = color_list
97:   end