jro_apps/redmine Files · lib/SVG/Graph/Bar.rb

Upgraded to Rails 2.3.4 (#3597)...

Upgraded to Rails 2.3.4 (#3597) * Ran the Rails upgrade * Upgraded to Rails Engines 2.3.2 * Added a plugin to let Engines override application views. * Converted tests to use the new classes: ** ActionController::TestCase for functional ** ActiveSupport::TestCase for units * Converted ActiveRecord::Error message to a string. * ActiveRecord grouping returns an ordered hash which doesn't have #sort! * Updated the I18n storage_units format. * Added some default initializers from a fresh rails app * Changed the order of check_box_tags and hidden_field_tags. The hidden tag needs to appear first in Rails 2.3, otherwise it will override any value in the check_box_tag. * Removed the custom handler for when the cookie store is tampered with. Rails 2.3 removed the TamperedWithCookie exception and instead Rails will not load the data from it when it's been tampered with (e.g. no user login). * Fixed mail layouts, 2.3 has problems with implicit multipart emails that use layouts. Also removed some custom Redmine mailer code. * Fixed a bug that occurred in tests where the "required" span tag would be added to the :field_status translation. This resulted in an email string of: <li>Status<span class="required"> *</span><span class="required"> *</span> Instead of: <li>Status: New</li> git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2887 e93f8b46-1217-0410-a6f0-8f06a7374b81

Jean-Philippe Lang - - Load All Authors

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      require 'rexml/document'

      require 'SVG/Graph/Graph'

      require 'SVG/Graph/BarBase'

      module SVG

        module Graph

          # === Create presentation quality SVG bar graphs easily

          #

          # = Synopsis

          #

          #   require 'SVG/Graph/Bar'

          #

          #   fields = %w(Jan Feb Mar);

          #   data_sales_02 = [12, 45, 21]

          #

          #   graph = SVG::Graph::Bar.new(

          #     :height => 500,

          #     :width => 300,

          #     :fields => fields

          #   )

          #

          #   graph.add_data(

          #     :data => data_sales_02,

          #     :title => 'Sales 2002'

          #   )

          #

          #   print "Content-type: image/svg+xml\r\n\r\n"

          #   print graph.burn

          #

          # = Description

          #

          # This object aims to allow you to easily create high quality

          # SVG[http://www.w3c.org/tr/svg bar graphs. You can either use the default

          # style sheet or supply your own. Either way there are many options which

          # can be configured to give you control over how the graph is generated -

          # with or without a key, data elements at each point, title, subtitle etc.

          #

          # = Notes

          #

          # The default stylesheet handles upto 12 data sets, if you

          # use more you must create your own stylesheet and add the

          # additional settings for the extra data sets. You will know

          # if you go over 12 data sets as they will have no style and

          # be in black.

          #

          # = Examples

          #

          # * http://germane-software.com/repositories/public/SVG/test/test.rb

          #

          # = See also

          #

          # * SVG::Graph::Graph

          # * SVG::Graph::BarHorizontal

          # * SVG::Graph::Line

          # * SVG::Graph::Pie

          # * SVG::Graph::Plot

          # * SVG::Graph::TimeSeries

          class Bar < BarBase

            include REXML

            # See Graph::initialize and BarBase::set_defaults

            def set_defaults 

              super

              self.top_align = self.top_font = 1

            end

            protected

            def get_x_labels

              @config[:fields]

            end

            def get_y_labels

              maxvalue = max_value

              minvalue = min_value

              range = maxvalue - minvalue

              top_pad = range == 0 ? 10 : range / 20.0

              scale_range = (maxvalue + top_pad) - minvalue

              scale_division = scale_divisions || (scale_range / 10.0)

              if scale_integers

                scale_division = scale_division < 1 ? 1 : scale_division.round

              end

              rv = []

              maxvalue = maxvalue%scale_division == 0 ? 

                maxvalue : maxvalue + scale_division

              minvalue.step( maxvalue, scale_division ) {|v| rv << v}

              return rv

            end

            def x_label_offset( width )

              width / 2.0

            end

            def draw_data

              minvalue = min_value

              fieldwidth = field_width

              unit_size =  (@graph_height.to_f - font_size*2*top_font) / 

                                (get_y_labels.max - get_y_labels.min)

              bargap = bar_gap ? (fieldwidth < 10 ? fieldwidth / 2 : 10) : 0

              bar_width = fieldwidth - bargap

              bar_width /= @data.length if stack == :side

              x_mod = (@graph_width-bargap)/2 - (stack==:side ? bar_width/2 : 0)

              bottom = @graph_height

              field_count = 0

              @config[:fields].each_index { |i|

                dataset_count = 0

                for dataset in @data

                  # cases (assume 0 = +ve):

                  #   value  min  length

                  #    +ve   +ve  value - min

                  #    +ve   -ve  value - 0

                  #    -ve   -ve  value.abs - 0

                  value = dataset[:data][i]

                  left = (fieldwidth * field_count)

                  length = (value.abs - (minvalue > 0 ? minvalue : 0)) * unit_size

                  # top is 0 if value is negative

                  top = bottom - (((value < 0 ? 0 : value) - minvalue) * unit_size)

                  left += bar_width * dataset_count if stack == :side

                  @graph.add_element( "rect", {

                    "x" => left.to_s,

                    "y" => top.to_s,

                    "width" => bar_width.to_s,

                    "height" => length.to_s,

                    "class" => "fill#{dataset_count+1}"

                  })

                  make_datapoint_text(left + bar_width/2.0, top - 6, value.to_s)

                  dataset_count += 1

                end

                field_count += 1

              }

            end

          end

        end

      end

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				require 'rexml/document'
				require 'SVG/Graph/Graph'
				require 'SVG/Graph/BarBase'

				module SVG
				module Graph
				# === Create presentation quality SVG bar graphs easily
				#
				# = Synopsis
				#
				# require 'SVG/Graph/Bar'
				#
				# fields = %w(Jan Feb Mar);
				# data_sales_02 = [12, 45, 21]
				#
				# graph = SVG::Graph::Bar.new(
				# :height => 500,
				# :width => 300,
				# :fields => fields
				# )
				#
				# graph.add_data(
				# :data => data_sales_02,
				# :title => 'Sales 2002'
				# )
				#
				# print "Content-type: image/svg+xml\r\n\r\n"
				# print graph.burn
				#
				# = Description
				#
				# This object aims to allow you to easily create high quality
				# SVG[http://www.w3c.org/tr/svg bar graphs. You can either use the default
				# style sheet or supply your own. Either way there are many options which
				# can be configured to give you control over how the graph is generated -
				# with or without a key, data elements at each point, title, subtitle etc.
				#
				# = Notes
				#
				# The default stylesheet handles upto 12 data sets, if you
				# use more you must create your own stylesheet and add the
				# additional settings for the extra data sets. You will know
				# if you go over 12 data sets as they will have no style and
				# be in black.
				#
				# = Examples
				#
				# * http://germane-software.com/repositories/public/SVG/test/test.rb
				#
				# = See also
				#
				# * SVG::Graph::Graph
				# * SVG::Graph::BarHorizontal
				# * SVG::Graph::Line
				# * SVG::Graph::Pie
				# * SVG::Graph::Plot
				# * SVG::Graph::TimeSeries
				class Bar < BarBase
				include REXML

				# See Graph::initialize and BarBase::set_defaults
				def set_defaults
				super
				self.top_align = self.top_font = 1
				end

				protected

				def get_x_labels
				@config[:fields]
				end

				def get_y_labels
				maxvalue = max_value
				minvalue = min_value
				range = maxvalue - minvalue

				top_pad = range == 0 ? 10 : range / 20.0
				scale_range = (maxvalue + top_pad) - minvalue

				scale_division = scale_divisions \|\| (scale_range / 10.0)

				if scale_integers
				scale_division = scale_division < 1 ? 1 : scale_division.round
				end

				rv = []
				maxvalue = maxvalue%scale_division == 0 ?
				maxvalue : maxvalue + scale_division
				minvalue.step( maxvalue, scale_division ) {\|v\| rv << v}
				return rv
				end

				def x_label_offset( width )
				width / 2.0
				end

				def draw_data
				minvalue = min_value
				fieldwidth = field_width

				unit_size = (@graph_height.to_f - font_size2top_font) /
				(get_y_labels.max - get_y_labels.min)
				bargap = bar_gap ? (fieldwidth < 10 ? fieldwidth / 2 : 10) : 0

				bar_width = fieldwidth - bargap
				bar_width /= @data.length if stack == :side
				x_mod = (@graph_width-bargap)/2 - (stack==:side ? bar_width/2 : 0)

				bottom = @graph_height

				field_count = 0
				@config[:fields].each_index { \|i\|
				dataset_count = 0
				for dataset in @data

				# cases (assume 0 = +ve):
				# value min length
				# +ve +ve value - min
				# +ve -ve value - 0
				# -ve -ve value.abs - 0

				value = dataset[:data][i]

				left = (fieldwidth * field_count)

				length = (value.abs - (minvalue > 0 ? minvalue : 0)) * unit_size
				# top is 0 if value is negative
				top = bottom - (((value < 0 ? 0 : value) - minvalue) * unit_size)
				left += bar_width * dataset_count if stack == :side

				@graph.add_element( "rect", {
				"x" => left.to_s,
				"y" => top.to_s,
				"width" => bar_width.to_s,
				"height" => length.to_s,
				"class" => "fill#{dataset_count+1}"
				})

				make_datapoint_text(left + bar_width/2.0, top - 6, value.to_s)
				dataset_count += 1
				end
				field_count += 1
				}
				end
				end
				end
				end