X-Git-Url: https://projects.mako.cc/source/selectricity-live/blobdiff_plain/09c67d9323c7d379d4c6de5dc0457b6de16cff14..814ebbe864806750e95c3df954a47f4b0007c5e4:/vendor/plugins/gruff/lib/gruff/bar.rb diff --git a/vendor/plugins/gruff/lib/gruff/bar.rb b/vendor/plugins/gruff/lib/gruff/bar.rb deleted file mode 100644 index 89eeac7..0000000 --- a/vendor/plugins/gruff/lib/gruff/bar.rb +++ /dev/null @@ -1,84 +0,0 @@ - -require File.dirname(__FILE__) + '/base' -require File.dirname(__FILE__) + '/bar_conversion' - -class Gruff::Bar < Gruff::Base - - def draw - # Labels will be centered over the left of the bar if - # there are more labels than columns. This is basically the same - # as where it would be for a line graph. - @center_labels_over_point = (@labels.keys.length > @column_count ? true : false) - - super - return unless @has_data - - draw_bars - end - -protected - - def draw_bars - # Setup spacing. - # - # Columns sit side-by-side. - spacing_factor = 0.9 # space between the bars - @bar_width = @graph_width / (@column_count * @data.length).to_f - - @d = @d.stroke_opacity 0.0 - - # Setup the BarConversion Object - conversion = Gruff::BarConversion.new() - conversion.graph_height = @graph_height - conversion.graph_top = @graph_top - - # Set up the right mode [1,2,3] see BarConversion for further explanation - if @minimum_value >= 0 then - # all bars go from zero to positiv - conversion.mode = 1 - else - # all bars go from 0 to negativ - if @maximum_value <= 0 then - conversion.mode = 2 - else - # bars either go from zero to negativ or to positiv - conversion.mode = 3 - conversion.spread = @spread - conversion.minimum_value = @minimum_value - conversion.zero = -@minimum_value/@spread - end - end - - # iterate over all normalised data - @norm_data.each_with_index do |data_row, row_index| - - data_row[1].each_with_index do |data_point, point_index| - # Use incremented x and scaled y - # x - left_x = @graph_left + (@bar_width * (row_index + point_index + ((@data.length - 1) * point_index))) - right_x = left_x + @bar_width * spacing_factor - # y - conv = [] - conversion.getLeftYRightYscaled( data_point, conv ) - - # create new bar - @d = @d.fill data_row[DATA_COLOR_INDEX] - @d = @d.rectangle(left_x, conv[0], right_x, conv[1]) - - # Calculate center based on bar_width and current row - label_center = @graph_left + - (@data.length * @bar_width * point_index) + - (@data.length * @bar_width / 2.0) - # Subtract half a bar width to center left if requested - draw_label(label_center - (@center_labels_over_point ? @bar_width / 2.0 : 0.0), point_index) - end - - end - - # Draw the last label if requested - draw_label(@graph_right, @column_count) if @center_labels_over_point - - @d.draw(@base_image) - end - -end