Method: Gruff::Bullet#draw

Defined in:
lib/gruff/bullet.rb

#draw ⇒ Object

def setup_drawing

# Maybe should be done in one of the following functions for more granularity.
unless @has_data
  draw_no_data()
  return
end

normalize()
setup_graph_measurements()
sort_norm_data() if @sort # Sort norm_data with avg largest values set first (for display)

draw_legend()
draw_line_markers()
draw_axis_labels()
draw_title

end



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# File 'lib/gruff/bullet.rb', line 46

def draw
  # TODO Left label
  # TODO Bottom labels and markers
  # @graph_bottom
  # Calculations are off 800x???

  @colors.reverse!

  draw_title

  @margin       = 30.0
  @thickness    = @raw_rows / 6.0
  @right_margin = @margin
  @graph_left   = @title_width * 1.3 rescue @margin # HACK Need to calculate real width
  @graph_width  = @raw_columns - @graph_left - @right_margin
  @graph_height = @thickness * 3.0

  # Background
  @d = @d.fill @colors[0]
  @d = @d.rectangle(@graph_left, 0, @graph_left + @graph_width, @graph_height)

  [:high, :low].each_with_index do |indicator, index|
    next unless @options.has_key?(indicator)
    @d = @d.fill @colors[index + 1]
    indicator_width_x  = @graph_left + @graph_width * (@options[indicator] / @maximum_value)
    @d = @d.rectangle(@graph_left, 0, indicator_width_x, @graph_height)
  end

  if @options.has_key?(:target)
    @d = @d.fill @font_color
    target_x = @graph_left + @graph_width * (@options[:target] / @maximum_value)
    half_thickness = @thickness / 2.0
    @d = @d.rectangle(target_x, half_thickness, target_x + half_thickness, @thickness * 2 + half_thickness)
  end

  # Value
  @d = @d.fill @font_color
  @d = @d.rectangle(@graph_left, @thickness, @graph_left + @graph_width * (@value / @maximum_value), @thickness * 2)

  @d.draw(@base_image)
end