X-Git-Url: https://projects.mako.cc/source/selectricity-live/blobdiff_plain/09c67d9323c7d379d4c6de5dc0457b6de16cff14..814ebbe864806750e95c3df954a47f4b0007c5e4:/vendor/plugins/gruff/lib/gruff/pie.rb

diff --git a/vendor/plugins/gruff/lib/gruff/pie.rb b/vendor/plugins/gruff/lib/gruff/pie.rb
deleted file mode 100644
index b143e70..0000000
--- a/vendor/plugins/gruff/lib/gruff/pie.rb
+++ /dev/null
@@ -1,108 +0,0 @@
-
-require File.dirname(__FILE__) + '/base'
-
-class Gruff::Pie < Gruff::Base
-
-  TEXT_OFFSET_PERCENTAGE = 0.15
-
-  # Can be used to make the pie start cutting slices at the top (-90.0)
-  # or at another angle. Default is 0.0, which starts at 3 o'clock.
-  attr_accessor :zero_degree
-  
-  def initialize_ivars
-    super
-    @zero_degree = 0.0
-  end
-
-  def draw
-    @hide_line_markers = true
-    
-    super
-
-    return unless @has_data
-
-    diameter = @graph_height
-    radius = ([@graph_width, @graph_height].min / 2.0) * 0.8
-    top_x = @graph_left + (@graph_width - diameter) / 2.0
-    center_x = @graph_left + (@graph_width / 2.0)
-    center_y = @graph_top + (@graph_height / 2.0) - 10 # Move graph up a bit
-    total_sum = sums_for_pie()
-    prev_degrees = @zero_degree
-
-    # Use full data since we can easily calculate percentages
-    @data.sort{ |a, b| a[DATA_VALUES_INDEX][0] <=> b[DATA_VALUES_INDEX][0] }.each do |data_row|
-      if data_row[DATA_VALUES_INDEX][0] > 0
-        @d = @d.stroke data_row[DATA_COLOR_INDEX]
-        @d = @d.fill 'transparent'
-        @d.stroke_width(radius) # stroke width should be equal to radius. we'll draw centered on (radius / 2)
-
-        current_degrees = (data_row[DATA_VALUES_INDEX][0] / total_sum) * 360.0 
-
-        # ellipse will draw the the stroke centered on the first two parameters offset by the second two.
-        # therefore, in order to draw a circle of the proper diameter we must center the stroke at
-        # half the radius for both x and y
-        @d = @d.ellipse(center_x, center_y, 
-                  radius / 2.0, radius / 2.0,
-                  prev_degrees, prev_degrees + current_degrees + 0.5) # <= +0.5 'fudge factor' gets rid of the ugly gaps
-                  
-        half_angle = prev_degrees + ((prev_degrees + current_degrees) - prev_degrees) / 2
-
-        # End the string with %% to escape the single %.
-        # RMagick must use sprintf with the string and % has special significance.
-        label_string = ((data_row[DATA_VALUES_INDEX][0] / total_sum) * 100.0).round.to_s + '%%'
-        @d = draw_label(center_x,center_y, 
-                    half_angle, radius + (radius * TEXT_OFFSET_PERCENTAGE), 
-                    label_string)
-      
-        prev_degrees += current_degrees
-      end
-    end
-
-    # TODO debug a circle where the text is drawn...
-    
-    @d.draw(@base_image)
-  end
-
-private
-
-  ##
-  # Labels are drawn around a slightly wider ellipse to give room for 
-  # labels on the left and right.
-  def draw_label(center_x, center_y, angle, radius, amount)
-    # TODO Don't use so many hard-coded numbers
-    r_offset = 20.0      # The distance out from the center of the pie to get point
-    x_offset = center_x # + 15.0 # The label points need to be tweaked slightly
-    y_offset = center_y  # This one doesn't though
-    radius_offset = (radius + r_offset)
-    ellipse_factor = radius_offset * 0.15
-    x = x_offset + ((radius_offset + ellipse_factor) * Math.cos(angle.deg2rad))
-    y = y_offset + (radius_offset * Math.sin(angle.deg2rad))
-    
-    # Draw label
-    @d.fill = @font_color
-    @d.font = @font if @font
-    @d.pointsize = scale_fontsize(@marker_font_size)
-    @d.stroke = 'transparent'
-    @d.font_weight = BoldWeight
-    @d.gravity = CenterGravity
-    @d.annotate_scaled( @base_image, 
-                      0, 0,
-                      x, y, 
-                      amount, @scale)
-  end
-
-  def sums_for_pie
-    total_sum = 0.0
-    @data.collect {|data_row| total_sum += data_row[DATA_VALUES_INDEX][0] }
-    total_sum
-  end
-
-end
-
-
-class Float
-  # Used for degree => radian conversions
-  def deg2rad
-    self * (Math::PI/180.0)
-  end
-end