# -*- coding: utf-8 -*- require 'write_xlsx/package/xml_writer_simple' require 'write_xlsx/utility' module Writexlsx # ==SYNOPSIS # # To create a simple Excel file with a chart using WriteXLSX: # # require 'rubygems' # require 'write_xlsx' # # workbook = WriteXLSX.new( 'chart.xlsx' ) # worksheet = workbook.add_worksheet # # # Add the worksheet data the chart refers to. # data = [ # [ 'Category', 2, 3, 4, 5, 6, 7 ], # [ 'Value', 1, 4, 5, 2, 1, 5 ] # ] # # worksheet.write( 'A1', data ) # # # Add a worksheet chart. # chart = workbook.add_chart( type => 'column' ) # # # Configure the chart. # chart.add_series( # :categories => '=Sheet1!$A$2:$A$7', # :values => '=Sheet1!$B$2:$B$7' # ) # # workbook.close # # ==DESCRIPTION # # The Chart module is an abstract base class for modules that implement # charts in WriteXLSX. The information below is applicable to all of # the available subclasses. # # The Chart module isn't used directly. A chart object is created via # the Workbook add_chart() method where the chart type is specified: # # chart = workbook.add_chart( :type => 'column' ) # # Currently the supported chart types are: # # ===area # Creates an Area (filled line) style chart. See Writexlsx::Chart::Area. # # ===bar # Creates a Bar style (transposed histogram) chart. See Writexlsx::Chart::Bar. # # ===column # Creates a column style (histogram) chart. See Writexlsx::Chart::Column. # # ===line # Creates a Line style chart. See Writexlsx::Chart::Line. # # ===pie # Creates an Pie style chart. See Writexlsx::Chart::Pie. # # ===scatter # Creates an Scatter style chart. See Writexlsx::Chart::Scatter. # # ===stock # Creates an Stock style chart. See Writexlsx::Chart::Stock. # # ==CHART FORMATTING # # The following chart formatting properties can be set for any chart object # that they apply to (and that are supported by WriteXLSX) such # as chart lines, column fill areas, plot area borders, markers and other # chart elements documented above. # # line # border # fill # marker # trendline # data_labels # Chart formatting properties are generally set using hash refs. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :line => { color => 'blue' } # ) # In some cases the format properties can be nested. For example a marker # may contain border and fill sub-properties. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :line => { color => 'blue' }, # :marker => { # :type => 'square', # :size => 5, # :border => { color => 'red' }, # :fill => { color => 'yellow' } # } # ) # ===Line # # The line format is used to specify properties of line objects that appear # in a chart such as a plotted line on a chart or a border. # # The following properties can be set for line formats in a chart. # # none # color # width # dash_type # The none property is uses to turn the line off (it is always on by default # except in Scatter charts). This is useful if you wish to plot a series # with markers but without a line. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :line => { none => 1 } # ) # The color property sets the color of the line. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :line => { color => 'red' } # ) # The available colors are shown in the main WriteXLSX documentation. # It is also possible to set the color of a line with a HTML style RGB color: # # chart.add_series( # :line => { color => '#FF0000' } # ) # The width property sets the width of the line. It should be specified # in increments of 0.25 of a point as in Excel. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :line => { width => 3.25 } # ) # The dash_type property sets the dash style of the line. # # chart->add_series( # :values => '=Sheet1!$B$1:$B$5', # :line => { dash_type => 'dash_dot' } # ) # The following dash_type values are available. They are shown in the # order that they appear in the Excel dialog. # # solid # round_dot # square_dot # dash # dash_dot # long_dash # long_dash_dot # long_dash_dot_dot # The default line style is solid. # # More than one line property can be specified at time: # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :line => { # :color => 'red', # :width => 1.25, # :dash_type => 'square_dot' # } # ) # ===Border # # The border property is a synonym for line. # # It can be used as a descriptive substitute for line in chart types such # as Bar and Column that have a border and fill style rather than a line # style. In general chart objects with a border property will also have a # fill property. # # ===Fill # # The fill format is used to specify filled areas of chart objects such # as the interior of a column or the background of the chart itself. # # The following properties can be set for fill formats in a chart. # # none # color # The none property is uses to turn the fill property off (it is # generally on by default). # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :fill => { none => 1 } # ) # The color property sets the color of the fill area. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :fill => { color => 'red' } # ) # The available colors are shown in the main WriteXLSX documentation. # It is also possible to set the color of a fill with a HTML style RGB color: # # chart.add_series( # :fill => { color => '#FF0000' } # ) # The fill format is generally used in conjunction with a border format # which has the same properties as a line format. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :border => { color => 'red' }, # :fill => { color => 'yellow' } # ) # ===Marker # # The marker format specifies the properties of the markers used to # distinguish series on a chart. In general only Line and Scatter # chart types and trendlines use markers. # # The following properties can be set for marker formats in a chart. # # type # size # border # fill # The type property sets the type of marker that is used with a series. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :marker => { type => 'diamond' } # ) # The following type properties can be set for marker formats in a chart. # These are shown in the same order as in the Excel format dialog. # # automatic # none # square # diamond # triangle # x # star # short_dash # long_dash # circle # plus # The automatic type is a special case which turns on a marker using the # default marker style for the particular series number. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :marker => { type => 'automatic' } # ) # If automatic is on then other marker properties such as size, # border or fill cannot be set. # # The size property sets the size of the marker and is generally used in # conjunction with type. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :marker => { type => 'diamond', size => 7 } # ) # Nested border and fill properties can also be set for a marker. # These have the same sub-properties as shown above. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :marker => { # :type => 'square', # :size => 5, # :border => { color => 'red' }, # :fill => { color => 'yellow' } # } # ) # ===Trendline # # A trendline can be added to a chart series to indicate trends in the data # such as a moving average or a polynomial fit. # # The following properties can be set for trendline formats in a chart. # # type # order (for polynomial trends) # period (for moving average) # forward (for all except moving average) # backward (for all except moving average) # name # line # The type property sets the type of trendline in the series. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :trendline => { type => 'linear' } # ) # The available trendline types are: # # exponential # linear # log # moving_average # polynomial # power # A polynomial trendline can also specify the order of the polynomial. # The default value is 2. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :trendline => { # :type => 'polynomial', # :order => 3 # } # ) # A moving_average trendline can also the period of the moving average. # The default value is 2. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :trendline => { # :type => 'moving_average', # :period => 3 # } # ) # The forward and backward properties set the forecast period of the # trendline. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :trendline => { # :type => 'linear', # :forward => 0.5, # :backward => 0.5 # } # ) # The name property sets an optional name for the trendline that will # appear in the chart legend. If it isn't specified the Excel default # name will be displayed. This is usually a combination of the trendline # type and the series name. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :trendline => { # :type => 'linear', # :name => 'Interpolated trend' # } # ) # Several of these properties can be set in one go: # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :trendline => { # :type => 'linear', # :name => 'My trend name', # :forward => 0.5, # :backward => 0.5, # :line => { # :color => 'red', # :width => 1, # :dash_type => 'long_dash' # } # } # ) # Trendlines cannot be added to series in a stacked chart or pie chart or # (when implemented) to 3-D, radar, surface, or doughnut charts. # # ==Data Labels # # Data labels can be added to a chart series to indicate the values of # the plotted data points. # # The following properties can be set for data_labels formats in a chart. # # value # category # series_name # The value property turns on the Value data label for a series. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :data_labels => { value => 1 } # ) # The category property turns on the Category Name data label for a series. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :data_labels => { category => 1 } # ) # The series_name property turns on the Series Name data label for a series. # # chart.add_series( # :values => '=Sheet1!$B$1:$B$5', # :data_labels => { series_name => 1 } # ) # Other formatting options # # Other formatting options will be added in time. If there is a feature that # you would like to see included drop me a line. # class Chart include Writexlsx::Utility attr_accessor :id # :nodoc: attr_writer :index, :palette # :nodoc: attr_reader :embedded, :formula_ids, :formula_data # :nodoc: # # Factory method for returning chart objects based on their class type. # def self.factory(chart_subclass) # :nodoc: case chart_subclass.downcase.capitalize when 'Area' require 'write_xlsx/chart/area' Chart::Area.new when 'Bar' require 'write_xlsx/chart/bar' Chart::Bar.new when 'Column' require 'write_xlsx/chart/column' Chart::Column.new when 'Line' require 'write_xlsx/chart/line' Chart::Line.new when 'Pie' require 'write_xlsx/chart/pie' Chart::Pie.new when 'Scatter' require 'write_xlsx/chart/scatter' Chart::Scatter.new when 'Stock' require 'write_xlsx/chart/stock' Chart::Stock.new end end def initialize(subtype) # :nodoc: @writer = Package::XMLWriterSimple.new @subtype = subtype @sheet_type = 0x0200 @orientation = 0x0 @series = [] @embedded = 0 @id = '' @style_id = 2 @axis_ids = [] @has_category = 0 @requires_category = 0 @legend_position = 'right' @cat_axis_position = 'b' @val_axis_position = 'l' @formula_ids = {} @formula_data = [] @horiz_cat_axis = 0 @horiz_val_axis = 1 @protection = 0 @x_axis = {} @y_axis = {} set_default_properties end def set_xml_writer(filename) # :nodoc: @writer.set_xml_writer(filename) end # # Assemble and write the XML file. # def assemble_xml_file # :nodoc: @writer.xml_decl # Write the c:chartSpace element. write_chart_space # Write the c:lang element. write_lang # Write the c:style element. write_style # Write the c:protection element. write_protection # Write the c:chart element. write_chart # Write the c:printSettings element. write_print_settings if @embedded # Close the worksheet tag. @writer.end_tag( 'c:chartSpace') # Close the XML writer object and filehandle. @writer.crlf @writer.close end # # Add a series and it's properties to a chart. # # In an Excel chart a "series" is a collection of information such as # values, x-axis labels and the formatting that define which data is # plotted. # # With a WriteXLSX chart object the add_series() method is used to # set the properties for a series: # # chart.add_series( # :categories => '=Sheet1!$A$2:$A$10', # Optional. # :values => '=Sheet1!$B$2:$B$10', # Required. # :line => { color => 'blue' } # ) # # The properties that can be set are: # # ====:values # This is the most important property of a series and must be set # for every chart object. It links the chart with the worksheet data # that it displays. A formula or array ref can be used for the # data range, see below. # # ====:categories # This sets the chart category labels. The category is more or less # the same as the X-axis. In most chart types the categories property # is optional and the chart will just assume a sequential series # from 1 .. n. # # ====:name # Set the name for the series. The name is displayed in the chart # legend and in the formula bar. The name property is optional and # if it isn't supplied it will default to Series 1 .. n. # # ====:line # Set the properties of the series line type such as colour and # width. See the "CHART FORMATTING" section below. # # ====:border # Set the border properties of the series such as colour and style. # See the "CHART FORMATTING" section below. # # ====:fill # Set the fill properties of the series such as colour. See the # "CHART FORMATTING" section below. # # ====:marker # Set the properties of the series marker such as style and color. # See the "CHART FORMATTING" section below. # # ====:trendline # Set the properties of the series trendline such as linear, # polynomial and moving average types. See the "CHART FORMATTING" # section below. # # ====:data_labels # Set data labels for the series. See the "CHART FORMATTING" # section below. # # ====:invert_if_negative # Invert the fill colour for negative values. Usually only applicable # to column and bar charts. # # The categories and values can take either a range formula such # as =Sheet1!$A$2:$A$7 or, more usefully when generating the range # programmatically, an array ref with zero indexed row/column values: # # [ sheetname, row_start, row_end, col_start, col_end ] # The following are equivalent: # # chart.add_series( categories => '=Sheet1!$A$2:$A$7' ) # Same as ... # chart.add_series( categories => [ 'Sheet1', 1, 6, 0, 0 ] ) # Zero-indexed. # # You can add more than one series to a chart. In fact, some chart # types such as stock require it. The series numbering and order in # the Excel chart will be the same as the order in which that are added # in WriteXLSX. # # # Add the first series. # chart.add_series( # :categories => '=Sheet1!$A$2:$A$7', # :values => '=Sheet1!$B$2:$B$7', # :name => 'Test data series 1' # ) # # # Add another series. Same categories. Different range values. # chart.add_series( # :categories => '=Sheet1!$A$2:$A$7', # :values => '=Sheet1!$C$2:$C$7', # :name => 'Test data series 2' # ) # def add_series(params) # Check that the required input has been specified. unless params.has_key?(:values) raise "Must specify ':values' in add_series" end if @requires_category != 0 && !params.has_key?(:categories) raise "Must specify ':categories' in add_series for this chart type" end # Convert aref params into a formula string. values = aref_to_formula(params[:values]) categories = aref_to_formula(params[:categories]) # Switch name and name_formula parameters if required. name, name_formula = process_names(params[:name], params[:name_formula]) # Get an id for the data equivalent to the range formula. cat_id = get_data_id(categories, params[:categories_data]) val_id = get_data_id(values, params[:values_data]) name_id = get_data_id(name_formula, params[:name_data]) # Set the line properties for the series. line = get_line_properties(params[:line]) # Allow 'border' as a synonym for 'line' in bar/column style charts. line = get_line_properties(params[:border]) if params[:border] # Set the fill properties for the series. fill = get_fill_properties(params[:fill]) # Set the marker properties for the series. marker = get_marker_properties(params[:marker]) # Set the trendline properties for the series. trendline = get_trendline_properties(params[:trendline]) # Set the labels properties for the series. labels = get_labels_properties(params[:data_labels]) # Set the "invert if negative" fill property. invert_if_neg = params[:invert_if_negative] # Add the user supplied data to the internal structures. @series << { :_values => values, :_categories => categories, :_name => name, :_name_formula => name_formula, :_name_id => name_id, :_val_data_id => val_id, :_cat_data_id => cat_id, :_line => line, :_fill => fill, :_marker => marker, :_trendline => trendline, :_labels => labels, :_invert_if_neg => invert_if_neg } end # # Set the properties of the X-axis. # # The set_x_axis() method is used to set properties of the X axis. # # chart.set_x_axis( :name => 'Quarterly results' ) # # The properties that can be set are: # # :name # :min # :max # :minor_unit # :major_unit # :crossing # :reverse # :log_base # :label_position # # These are explained below. Some properties are only applicable to value # or category axes, as indicated. See "Value and Category Axes" for an # explanation of Excel's distinction between the axis types. # # ====:name # Set the name (title or caption) for the axis. The name is displayed # below the X axis. The name property is optional. The default is to # have no axis name. (Applicable to category and value axes). # # chart.set_x_axis( :name => 'Quarterly results' ) # # The name can also be a formula such as =Sheet1!$A$1. # # ====:min # Set the minimum value for the axis range. # (Applicable to value axes only). # # chart.set_x_axis( :min => 20 ) # ====:max # Set the maximum value for the axis range. # (Applicable to value axes only). # # chart.set_x_axis( :max => 80 ) # ====:minor_unit # Set the increment of the minor units in the axis range. # (Applicable to value axes only). # # chart.set_x_axis( :minor_unit => 0.4 ) # ====:major_unit # Set the increment of the major units in the axis range. # (Applicable to value axes only). # # chart.set_x_axis( :major_unit => 2 ) # ====:crossing # Set the position where the y axis will cross the x axis. # (Applicable to category and value axes). # # The crossing value can either be the string 'max' to set the crossing # at the maximum axis value or a numeric value. # # chart.set_x_axis( :crossing => 3 ) # # or # chart.set_x_axis( :crossing => 'max' ) # For category axes the numeric value must be an integer to represent # the category number that the axis crosses at. For value axes it can # have any value associated with the axis. # # If crossing is omitted (the default) the crossing will be set # automatically by Excel based on the chart data. # # ====:reverse # Reverse the order of the axis categories or values. # (Applicable to category and value axes). # # chart.set_x_axis( :reverse => 1 ) # ====:log_base # Set the log base of the axis range. # (Applicable to value axes only). # # chart.set_x_axis( :log_base => 10 ) # ====:label_position # Set the "Axis labels" position for the axis. # The following positions are available: # # next_to (the default) # high # low # none # More than one property can be set in a call to set_x_axis: # # chart.set_x_axis( # :name => 'Quarterly results', # :min => 10, # :max => 80 # ) # def set_x_axis(params) @x_axis = convert_axis_args(params) end # # Set the properties of the Y-axis. # # The set_y_axis() method is used to set properties of the Y axis. # The properties that can be set are the same as for set_x_axis, # def set_y_axis(params) @y_axis = convert_axis_args(params) end # # Set the properties of the chart title. # # The set_title() method is used to set properties of the chart title. # # chart.set_title( :name => 'Year End Results' ) # The properties that can be set are: # # ====:name # Set the name (title) for the chart. The name is displayed above the # chart. The name can also be a formula such as =Sheet1!$A$1. The name # property is optional. The default is to have no chart title. # def set_title(params) name, name_formula = process_names(params[:name], params[:name_formula]) data_id = get_data_id(name_formula, params[:data]) @title_name = name @title_formula = name_formula @title_data_id = data_id end # # Set the properties of the chart legend. # # The set_legend() method is used to set properties of the chart legend. # # chart.set_legend( :position => 'none' ) # The properties that can be set are: # # ====:position # Set the position of the chart legend. # # chart.set_legend( :position => 'bottom' ) # The default legend position is right. The available positions are: # # none # top # bottom # left # right # overlay_left # overlay_right # ====:delete_series # This allows you to remove 1 or more series from the the legend # (the series will still display on the chart). This property takes # an array ref as an argument and the series are zero indexed: # # # Delete/hide series index 0 and 2 from the legend. # chart.set_legend( :delete_series => [0, 2] ) # def set_legend(params) @legend_position = params[:position] || 'right' @legend_delete_series = params[:delete_series] end # # Set the properties of the chart plotarea. # # The set_plotarea() method is used to set properties of the plot area # of a chart. # # This method isn't implemented yet and is only available in # writeexcel gem. However, it can be simulated using the # set_style() method. # def set_plotarea(params) # TODO. Need to refactor for XLSX format. return return if params.empty? area = @plotarea # Set the plotarea visibility. if params[:visible] area[:_visible] = params[:visible] return unless area[:_visible] end # TODO. could move this out of if statement. area[:_bg_color_index] = 0x08 # Set the chart background colour. if params[:color] index, rgb = get_color_indices(params[:color]) if index area[:_fg_color_index] = index area[:_fg_color_rgb] = rgb area[:_bg_color_index] = 0x08 area[:_bg_color_rgb] = 0x000000 end end # Set the border line colour. if params[:line_color] index, rgb = get_color_indices(params[:line_color]) if index area[:_line_color_index] = index area[:_line_color_rgb] = rgb end end # Set the border line pattern. if params[:line_pattern] pattern = get_line_pattern(params[:line_pattern]) area[:_line_pattern] = pattern end # Set the border line weight. if params[:line_weight] weight = get_line_weight(params[:line_weight]) area[:_line_weight] = weight end end # # Set the properties of the chart chartarea. # # The set_chartarea() method is used to set the properties of the chart # area. # # This method isn't implemented yet and is only available in # writeexcel gem. However, it can be simulated using the # set_style() method. # def set_chartarea(params) # TODO. Need to refactor for XLSX format. return return if params.empty? area = @chartarea # Embedded automatic line weight has a different default value. area[:_line_weight] = 0xFFFF if @embedded # Set the chart background colour. if params[:color] index, rgb = get_color_indices(params[:color]) if index area[:_fg_color_index] = index area[:_fg_color_rgb] = rgb area[:_bg_color_index] = 0x08 area[:_bg_color_rgb] = 0x000000 area[:_area_pattern] = 1 area[:_area_options] = 0x0000 if @embedded area[:_visible] = 1 end end # Set the border line colour. if params[:line_color] index, rgb = get_color_indices(params[:line_color]) if index area[:_line_color_index] = index area[:_line_color_rgb] = rgb area[:_line_pattern] = 0x00 area[:_line_options] = 0x0000 area[:_visible] = 1 end end # Set the border line pattern. if params[:line_pattern] pattern = get_line_pattern(params[:line_pattern]) area[:_line_pattern] = pattern area[:_line_options] = 0x0000 area[:_line_color_index] = 0x4F unless params[:line_color] area[:_visible] = 1 end # Set the border line weight. if params[:line_weight] weight = get_line_weight(params[:line_weight]) area[:_line_weight] = weight area[:_line_options] = 0x0000 area[:_line_pattern] = 0x00 unless params[:line_pattern] area[:_line_color_index] = 0x4F unless params[:line_color] area[:_visible] = 1 end end # # Set on of the 42 built-in Excel chart styles. The default style is 2. # # The set_style() method is used to set the style of the chart to one # of the 42 built-in styles available on the 'Design' tab in Excel: # # chart.set_style( 4 ) # def set_style(style_id = 2) style_id = 2 if style_id < 0 || style_id > 42 @style_id = style_id end # # Setup the default configuration data for an embedded chart. # def set_embedded_config_data @embedded = 1 # TODO. We may be able to remove this after refactoring. @chartarea = { :_visible => 1, :_fg_color_index => 0x4E, :_fg_color_rgb => 0xFFFFFF, :_bg_color_index => 0x4D, :_bg_color_rgb => 0x000000, :_area_pattern => 0x0001, :_area_options => 0x0001, :_line_pattern => 0x0000, :_line_weight => 0x0000, :_line_color_index => 0x4D, :_line_color_rgb => 0x000000, :_line_options => 0x0009 } end private # # Convert user defined axis values into private hash values. # def convert_axis_args(params) # :nodoc: name, name_formula = process_names(params[:name], params[:name_formula]) data_id = get_data_id(name_formula, params[:data]) axis = { :_name => name, :_formula => name_formula, :_data_id => data_id, :_reverse => params[:reverse], :_min => params[:min], :_max => params[:max], :_minor_unit => params[:minor_unit], :_major_unit => params[:major_unit], :_minor_unit_type => params[:minor_unit_type], :_major_unit_type => params[:major_unit_type], :_log_base => params[:log_base], :_crossing => params[:crossing], :_position => params[:position], :_label_position => params[:label_position] } # Only use the first letter of bottom, top, left or right. axis[:_position] = axis[:_position].downcase[0, 1] if axis[:_position] axis end # # Convert and aref of row col values to a range formula. # def aref_to_formula(data) # :nodoc: # If it isn't an array ref it is probably a formula already. return data unless data.kind_of?(Array) xl_range_formula(*data) end # # Switch name and name_formula parameters if required. # def process_names(name = nil, name_formula = nil) # :nodoc: # Name looks like a formula, use it to set name_formula. if name && name =~ /^=[^!]+!\$/ name_formula = name name = '' end [name, name_formula] end # # Find the overall type of the data associated with a series. # # TODO. Need to handle date type. # def get_data_type(data) # :nodoc: # Check for no data in the series. return 'none' unless data return 'none' if data.empty? # If the token isn't a number assume it is a string. data.each do |token| next unless token return 'str' unless token.kind_of?(Numeric) end # The series data was all numeric. 'num' end # # Assign an id to a each unique series formula or title/axis formula. Repeated # formulas such as for categories get the same id. If the series or title # has user specified data associated with it then that is also stored. This # data is used to populate cached Excel data when creating a chart. # If there is no user defined data then it will be populated by the parent # workbook in Workbook::_add_chart_data # def get_data_id(formula, data) # :nodoc: # Ignore series without a range formula. return unless formula # Strip the leading '=' from the formula. formula = formula.sub(/^=/, '') # Store the data id in a hash keyed by the formula and store the data # in a separate array with the same id. if !@formula_ids.has_key?(formula) # Haven't seen this formula before. id = @formula_data.size @formula_data << data @formula_ids[formula] = id else # Formula already seen. Return existing id. id = @formula_ids[formula] # Store user defined data if it isn't already there. @formula_data[id] = data unless @formula_data[id] end id end # # Convert the user specified colour index or string to a rgb colour. # def get_color(color) # :nodoc: # Convert a HTML style #RRGGBB color. if color and color =~ /^#[0-9a-fA-F]{6}$/ color = color.sub(/^#/, '') return color.upperca end index = Format.get_color(color) # Set undefined colors to black. unless index index = 0x08 raise "Unknown color '#{color}' used in chart formatting." end get_palette_color(index) end # # Convert from an Excel internal colour index to a XML style #RRGGBB index # based on the default or user defined values in the Workbook palette. # Note: This version doesn't add an alpha channel. # def get_palette_color(index) # :nodoc: palette = @palette # Adjust the colour index. index -= 8 # Palette is passed in from the Workbook class. rgb = palette[index] sprintf("%02X%02X%02X", *rgb) end # # Get the Excel chart index for line pattern that corresponds to the user # defined value. # def get_line_pattern(value) # :nodoc: value = value.downcase default = 0 patterns = { 0 => 5, 1 => 0, 2 => 1, 3 => 2, 4 => 3, 5 => 4, 6 => 7, 7 => 6, 8 => 8, 'solid' => 0, 'dash' => 1, 'dot' => 2, 'dash-dot' => 3, 'dash-dot-dot' => 4, 'none' => 5, 'dark-gray' => 6, 'medium-gray' => 7, 'light-gray' => 8 } if patterns.has_key(:value) pattern = patterns[:value] else pattern = default end pattern end # # Get the Excel chart index for line weight that corresponds to the user # defined value. # def get_line_weight(value) # :nodoc: value = value.downcase default = 0 weights = { 1 => -1, 2 => 0, 3 => 1, 4 => 2, 'hairline' => -1, 'narrow' => 0, 'medium' => 1, 'wide' => 2 } if weights[:value] weight = weights[:value] else weight = default end weight end # # Convert user defined line properties to the structure required internally. # def get_line_properties(line) # :nodoc: return { :_defined => 0 } unless line dash_types = { :solid => 'solid', :round_dot => 'sysDot', :square_dot => 'sysDash', :dash => 'dash', :dash_dot => 'dashDot', :long_dash => 'lgDash', :long_dash_dot => 'lgDashDot', :long_dash_dot_dot => 'lgDashDotDot', :dot => 'dot', :system_dash_dot => 'sysDashDot', :system_dash_dot_dot => 'sysDashDotDot' } # Check the dash type. dash_type = line[:dash_type] if dash_type if dash_types[dash_type] line[dash_type] = dash_types[dash_type] else raise "Unknown dash type '#{dash_type}'\n" end end line[:_defined] = 1 line end # # Convert user defined fill properties to the structure required internally. # def get_fill_properties(fill) # :nodoc: return { :_defined => 0 } unless fill fill[:_defined] = 1 fill end # # Convert user defined marker properties to the structure required internally. # def get_marker_properties(marker) # :nodoc: return unless marker types = { :automatic => 'automatic', :none => 'none', :square => 'square', :diamond => 'diamond', :triangle => 'triangle', :x => 'x', :star => 'start', :dot => 'dot', :short_dash => 'dot', :dash => 'dash', :long_dash => 'dash', :circle => 'circle', :plus => 'plus', :picture => 'picture' } # Check for valid types. marker_type = marker[type] if marker_type marker[automatic] = 1 if marker_type == 'automatic' if types[marker_type] marker[type] = types[marker_type] else raise "Unknown marker type '#{marker_type}'\n" end end # Set the line properties for the marker.. line = get_line_properties(marker[line]) # Allow 'border' as a synonym for 'line'. line = get_line_properties(marker[border]) if marker[border] # Set the fill properties for the marker. fill = get_fill_properties(marker[fill]) marker[:_line] = line marker[:_fill] = fill marker end # # Convert user defined trendline properties to the structure required internally. # def get_trendline_properties(trendline) # :nodoc: return unless trendline types = { :exponential => 'exp', :linear => 'linear', :log => 'log', :moving_average => 'movingAvg', :polynomial => 'poly', :power => 'power' } # Check the trendline type. trend_type = trendline[type] if types[trend_type] trendline[type] = types[trend_type] else raise "Unknown trendline type '#{trend_type}'\n" end # Set the line properties for the trendline.. line = get_line_properties(trendline[line]) # Allow 'border' as a synonym for 'line'. line = get_line_properties(trendline[border]) if trendline[border] # Set the fill properties for the trendline. fill = get_fill_properties(trendline[fill]) trendline[:_line] = line trendline[:_fill] = fill return trendline end # # Convert user defined labels properties to the structure required internally. # def get_labels_properties(labels) # :nodoc: return nil unless labels return labels end # # Add a unique id for an axis. # def add_axis_id # :nodoc: chart_id = 1 + @id axis_count = 1 + @axis_ids.size axis_id = sprintf('5%03d%04d', chart_id, axis_count) @axis_ids << axis_id axis_id end # # Setup the default properties for a chart. # def set_default_properties # :nodoc: @chartarea = { :_visible => 0, :_fg_color_index => 0x4E, :_fg_color_rgb => 0xFFFFFF, :_bg_color_index => 0x4D, :_bg_color_rgb => 0x000000, :_area_pattern => 0x0000, :_area_options => 0x0000, :_line_pattern => 0x0005, :_line_weight => 0xFFFF, :_line_color_index => 0x4D, :_line_color_rgb => 0x000000, :_line_options => 0x0008 } @plotarea = { :_visible => 1, :_fg_color_index => 0x16, :_fg_color_rgb => 0xC0C0C0, :_bg_color_index => 0x4F, :_bg_color_rgb => 0x000000, :_area_pattern => 0x0001, :_area_options => 0x0000, :_line_pattern => 0x0000, :_line_weight => 0x0000, :_line_color_index => 0x17, :_line_color_rgb => 0x808080, :_line_options => 0x0000 } end # # Write the element. # def write_chart_space # :nodoc: schema = 'http://schemas.openxmlformats.org/' xmlns_c = schema + 'drawingml/2006/chart' xmlns_a = schema + 'drawingml/2006/main' xmlns_r = schema + 'officeDocument/2006/relationships' attributes = [ 'xmlns:c', xmlns_c, 'xmlns:a', xmlns_a, 'xmlns:r', xmlns_r ] @writer.start_tag('c:chartSpace', attributes) end # # Write the element. # def write_lang # :nodoc: val = 'en-US' attributes = ['val', val] @writer.empty_tag('c:lang', attributes) end # # Write the element. # def write_style # :nodoc: style_id = @style_id # Don't write an element for the default style, 2. return if style_id == 2 attributes = ['val', style_id] @writer.empty_tag('c:style', attributes) end # # Write the element. # def write_chart # :nodoc: @writer.start_tag('c:chart') # Write the chart title elements. if title = @title_formula write_title_formula(title, @title_data_id) elsif title = @title_name write_title_rich(title) end # Write the c:plotArea element. write_plot_area # Write the c:legend element. write_legend # Write the c:plotVisOnly element. write_plot_vis_only @writer.end_tag('c:chart') end # # Write the element. # def write_plot_area # :nodoc: @writer.start_tag('c:plotArea') # Write the c:layout element. write_layout # Write the subclass chart type element. write_chart_type # Write the c:catAx element. write_cat_axis # Write the c:catAx element. write_val_axis @writer.end_tag('c:plotArea') end # # Write the element. # def write_layout # :nodoc: @writer.empty_tag('c:layout') end # # Write the chart type element. This method should be overridden by the # subclasses. # def write_chart_type # :nodoc: end # # Write the element. # def write_grouping(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:grouping', attributes) end # # Write the series elements. # def write_series # :nodoc: # Write each series with subelements. index = 0 @series.each do |series| write_ser(index, series) index += 1 end # Write the c:marker element. write_marker_value # Generate the axis ids. add_axis_id add_axis_id # Write the c:axId element. write_axis_id(@axis_ids[0]) write_axis_id(@axis_ids[1]) end # # Write the element. # def write_ser(index, series) # :nodoc: @writer.start_tag('c:ser') # Write the c:idx element. write_idx(index) # Write the c:order element. write_order(index) # Write the series name. write_series_name(series) # Write the c:spPr element. write_sp_pr(series) # Write the c:marker element. write_marker(series[:_marker]) # Write the c:invertIfNegative element. write_c_invert_if_negative(series[:_invert_if_neg]) # Write the c:dLbls element. write_d_lbls(series[:labels]) # Write the c:trendline element. write_trendline(series[:trendline]) # Write the c:cat element. write_cat(series) # Write the c:val element. write_val(series) @writer.end_tag('c:ser') end # # Write the element. # def write_idx(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:idx', attributes) end # # Write the element. # def write_order(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:order', attributes) end # # Write the series name. # def write_series_name(series) # :nodoc: if name = series[:_name_formula] write_tx_formula(name, series[:_name_id]) elsif name = series[:_name] write_tx_value(name) end end # # Write the element. # def write_cat(series) # :nodoc: formula = series[:_categories] data_id = series[:_cat_data_id] data = @formula_data[data_id] if data_id # Ignore elements for charts without category values. return unless formula @has_category = 1 @writer.start_tag('c:cat') # Check the type of cached data. type = get_data_type(data) if type == 'str' @has_category = 0 # Write the c:numRef element. write_str_ref(formula, data, type) else # Write the c:numRef element. write_num_ref(formula, data, type) end @writer.end_tag('c:cat') end # # Write the element. # def write_val(series) # :nodoc: formula = series[:_values] data_id = series[:_val_data_id] data = @formula_data[data_id] @writer.start_tag('c:val') # Check the type of cached data. type = get_data_type(data) if type == 'str' # Write the c:numRef element. write_str_ref(formula, data, type) else # Write the c:numRef element. write_num_ref(formula, data, type) end @writer.end_tag('c:val') end # # Write the element. # def write_num_ref(formula, data, type) # :nodoc: @writer.start_tag('c:numRef') # Write the c:f element. write_series_formula(formula) if type == 'num' # Write the c:numCache element. write_num_cache(data) elsif type == 'str' # Write the c:strCache element. write_str_cache(data) end @writer.end_tag('c:numRef') end # # Write the element. # def write_str_ref(formula, data, type) # :nodoc: @writer.start_tag('c:strRef') # Write the c:f element. write_series_formula(formula) if type == 'num' # Write the c:numCache element. write_num_cache(data) elsif type == 'str' # Write the c:strCache element. write_str_cache(data) end @writer.end_tag('c:strRef') end # # Write the element. # def write_series_formula(formula) # :nodoc: # Strip the leading '=' from the formula. formula = formula.sub(/^=/, '') @writer.data_element('c:f', formula) end # # Write the element. # def write_axis_id(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:axId', attributes) end # # Write the element. Usually the X axis. # def write_cat_axis(position = nil) # :nodoc: position = @cat_axis_position horiz = @horiz_cat_axis x_axis = @x_axis y_axis = @y_axis # Overwrite the default axis position with a user supplied value. position = x_axis[:_position] || position @writer.start_tag('c:catAx') write_axis_id(@axis_ids[0]) # Write the c:scaling element. write_scaling(x_axis[:_reverse]) # Write the c:axPos element. write_axis_pos(position, y_axis[:_reverse]) # Write the axis title elements. if title = @x_axis[:_formula] write_title_formula(title, @x_axis[:_data_id], horiz) elsif title = @x_axis[:_name] write_title_rich(title, horiz) end # Write the c:numFmt element. write_num_fmt # Write the c:tickLblPos element. write_tick_label_pos(x_axis[:_label_position]) # Write the c:crossAx element. write_cross_axis(@axis_ids[1]) # Note, the category crossing comes from the value axis. if y_axis[:_crossing].nil? || y_axis[:_crossing] == 'max' # Write the c:crosses element. write_crosses(y_axis[:_crossing]) else # Write the c:crossesAt element. write_c_crosses(y_axis[:_crossing]) end # Write the c:auto element. write_auto(1) # Write the c:labelAlign element. write_label_align('ctr') # Write the c:labelOffset element. write_label_offset(100) @writer.end_tag('c:catAx') end # # Write the element. Usually the Y axis. # # TODO. Maybe should have a _write_cat_val_axis method as well for scatter. # def write_val_axis(position = nil, hide_major_gridlines = nil) # :nodoc: position ||= @val_axis_position horiz = @horiz_val_axis x_axis = @x_axis y_axis = @y_axis # Overwrite the default axis position with a user supplied value. position = y_axis[:_position] || position @writer.start_tag('c:valAx') write_axis_id(@axis_ids[1]) # Write the c:scaling element. write_scaling(y_axis[:_reverse], y_axis[:_min], y_axis[:_max], y_axis[:_log_base]) # Write the c:axPos element. write_axis_pos(position, x_axis[:_reverse]) # Write the c:majorGridlines element. write_major_gridlines unless hide_major_gridlines # Write the axis title elements. if title = @y_axis[:_formula] write_title_formula(title, @y_axis[:_data_id], horiz) elsif title = @y_axis[:_name] write_title_rich(title, horiz) end # Write the c:numberFormat element. write_number_format # Write the c:tickLblPos element. write_tick_label_pos(y_axis[:_label_position]) # Write the c:crossAx element. write_cross_axis(@axis_ids[0]) # Note, the category crossing comes from the value axis. if x_axis[:crossing].nil? || x_axis[:_crossing] == 'max' # Write the c:crosses element. write_crosses(x_axis[:_crossing]) else # Write the c:crossesAt element. write_c_crosses_at(x_axis[:_crossing]) end # Write the c:crossBetween element. write_cross_between # Write the c:majorUnit element. write_c_major_unit(y_axis[:_major_unit]) # Write the c:minorUnit element. write_c_minor_unit(y_axis[:_minor_unit]) @writer.end_tag('c:valAx') end # # Write the element. This is for the second valAx in scatter plots. # # Usually the X axis. # def write_cat_val_axis(position, hide_major_gridlines) # :nodoc: position ||= @val_axis_position horiz = @horiz_val_axis x_axis = @x_axis y_axis = @y_axis # Overwrite the default axis position with a user supplied value. position = x_axis[:_position] || position @writer.start_tag('c:valAx') write_axis_id(@axis_ids[0]) # Write the c:scaling element. write_scaling(x_axis[:_reverse], x_axis[:_min], x_axis[:_max], x_axis[:_log_base]) # Write the c:axPos element. write_axis_pos(position, y_axis[:_reverse]) # Write the c:majorGridlines element. write_major_gridlines unless hide_major_gridlines # Write the axis title elements. if title = @x_axis[:_formula] write_title_formula(title, @y_axis[:_data_id], horiz) elsif title = @x_axis[:_name] write_title_rich(title, horiz) end # Write the c:numberFormat element. write_number_format # Write the c:tickLblPos element. write_tick_label_pos(x_axis[:_label_position]) # Write the c:crossAx element. write_cross_axis(@axis_ids[1]) # Note, the category crossing comes from the value axis. if y_axis[:_clossing].nil? || y_axis[:_crossing] == 'max' # Write the c:crosses element. write_crosses(y_axis[:_crossing]) else # Write the c:crossesAt element. write_c_crosses_at(y_axis[:_crossing]) end # Write the c:crossBetween element. write_cross_between # Write the c:majorunit element. write_c_major_unit(y_axis[:_major_unit]) # Write the c:minorUnit element. write_c_minor_unit(y_axis[:_minor_unit]) @writer.end_tag('c:valAx') end # # Write the element. Usually the X axis. # def write_date_axis(position = nil) # :nodoc: position = @cat_axis_position x_axis = @x_axis y_axis = @y_axis @writer.start_tag('c:dateAx') write_axis_id(@axis_ids[0]) # Write the c:scaling element. write_scaling(x_axis[:reverse], x_axis[:_min], x_axis[:_max], x_axis[:_log_base]) # Write the c:axPos element. write_axis_pos(position, y_axis[:reverse]) # Write the axis title elements. if title = x_axis[:_formula] write_title_formula(title, x_axis[:_data_id]) elsif title = x_axis[:_name] write_title_rich(title) end # Write the c:numFmt element. write_num_fmt('dd/mm/yyyy') # Write the c:tickLblPos element. write_tick_label_pos(x_axis[:_label_position]) # Write the c:crossAx element. write_cross_axis(@axis_ids[1]) # Note, the category crossing comes from the value axis. if y_axis[:_crossing].nil? || y_axis[:_crossing] == 'max' # Write the c:crossing element. write_crosses(y_axis[:_crossing]) else # Write the c:crossesAt element. write_c_crosses_at(y_axis[:_crossing]) end # Write the c:auto element. write_auto(1) # Write the c:labelOffset element. write_label_offset(100) # Write the c:majorUnit element. write_c_major_unit(x_axis[:_major_unit]) # Write the c:majorTimeUnit element. if !x_axis[:_major_unit].nil? write_c_major_time_unit(x_axis[:_major_unit_type]) end # Write the c:minorUnit element. write_c_minor_unit(x_axis[:_minor_unit]) # Write the c:minorTimeUnit element. if !x_axis[:_minor_unit].nil? write_c_minor_time_unit(x_axis[:_minor_unit_type]) end @writer.end_tag('c:dateAx') end # # Write the element. # def write_scaling(reverse, min = nil, max = nil, log_base = nil) # :nodoc: @writer.start_tag('c:scaling') # Write the c:logBase element. write_c_log_base(log_base) # Write the c:orientation element. write_orientation(reverse) # Write the c:max element. write_c_max(max) # Write the c:min element. write_c_min(min) @writer.end_tag('c:scaling') end # # Write the element. # def write_orientation(reverse = nil) # :nodoc: val = reverse ? 'maxMin' : 'minMax' attributes = ['val', val] @writer.empty_tag('c:orientation', attributes) end # # Write the element. # def write_c_log_base(val) # :nodoc: return if val == 0 || val.nil? attributes = ['val', val] @writer.empty_tag('c:logBase', attributes) end # # Write the element. # def write_orientation(reverse = 'maxMin') # :nodoc: val = 'minMax' attributes = ['val', val] @writer.empty_tag('c:orientation', attributes) end # # Write the element. # def write_c_max(max = nil) # :nodoc: return if max.nil? attributes = ['val', max] @writer.empty_tag('c:max', attributes) end # # Write the element. # def write_c_min(min = nil) # :nodoc: return if min.nil? attributes = ['val', min] @writer.empty_tag('c:min', attributes) end # # Write the element. # def write_axis_pos(val, reverse = false) # :nodoc: if reverse val = 'r' if val == 'l' val = 't' if val == 'b' end attributes = ['val', val] @writer.empty_tag('c:axPos', attributes) end # # Write the element. # def write_num_fmt(format_code = nil) # :nodoc: format_code ||= 'General' source_linked = 1 # These elements are only required for charts with categories. return unless @has_category attributes = [ 'formatCode', format_code, 'sourceLinked', source_linked ] @writer.empty_tag('c:numFmt', attributes) end # # Write the element. # def write_tick_label_pos(val) # :nodoc: val ||= 'nextTo' val = 'nextTo' if val == 'next_to' attributes = ['val', val] @writer.empty_tag('c:tickLblPos', attributes) end # # Write the element. # def write_cross_axis(val = 'autoZero') # :nodoc: attributes = ['val', val] @writer.empty_tag('c:crossAx', attributes) end # # Write the element. # def write_crosses(val) # :nodoc: val ||= 'autoZero' attributes = ['val', val] @writer.empty_tag('c:crosses', attributes) end # # Write the element. # def write_c_crosses_at(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:crossesAt', attributes) end # # Write the element. # def write_auto(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:auto', attributes) end # # Write the element. # def write_label_align(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:lblAlgn', attributes) end # # Write the element. # def write_label_offset(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:lblOffset', attributes) end # # Write the element. # def write_major_gridlines # :nodoc: @writer.empty_tag('c:majorGridlines') end # # Write the element. # # TODO. Merge/replace with _write_num_fmt. # def write_number_format # :nodoc: format_code = 'General' source_linked = 1 attributes = [ 'formatCode', format_code, 'sourceLinked', source_linked ] @writer.empty_tag('c:numFmt', attributes) end # # Write the element. # def write_cross_between # :nodoc: val = @cross_between || 'between' attributes = ['val', val] @writer.empty_tag('c:crossBetween', attributes) end # # Write the element. # def write_c_major_unit(val = nil) # :nodoc: return unless val attributes = ['val', val] @writer.empty_tag('c:majorUnit', attributes) end # # Write the element. # def write_c_minor_unit(val = nil) # :nodoc: return unless val attributes = ['val', val] @writer.empty_tag('c:minorUnit', attributes) end # # Write the element. # def write_c_major_time_unit(val = 'days') # :nodoc: attributes = ['val', val] @writer.empty_tag('c:majorTimeUnit', attributes) end # # Write the element. # def write_c_minor_time_unit(val = 'days') # :nodoc: attributes = ['val', val] @writer.empty_tag('c:minorTimeUnit', attributes) end # # Write the element. # def write_legend # :nodoc: position = @legend_position overlay = false if @legend_delete_series && @legend_delete_series.kind_of?(Array) @delete_series = @legend_delete_series end if position =~ /^overlay_/ position.sub!(/^overlay_/, '') overlay = true if position end allowed = { 'right' => 'r', 'left' => 'l', 'top' => 't', 'bottom' => 'b' } return if position == 'none' return unless allowed.has_key?(position) position = allowed[position] @writer.start_tag('c:legend') # Write the c:legendPos element. write_legend_pos(position) # Remove series labels from the legend. @delete_series.each do |index| # Write the c:legendEntry element. write_legend_entry(index) end if @delete_series # Write the c:layout element. write_layout # Write the c:overlay element. write_overlay if overlay @writer.end_tag('c:legend') end # # Write the element. # def write_legend_pos(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:legendPos', attributes) end # # Write the element. # def write_legend_entry(index) # :nodoc: @writer.start_tag('c:legendEntry') # Write the c:idx element. write_idx(index) # Write the c:delete element. write_delete(1) @writer.end_tag('c:legendEntry') end # # Write the element. # def write_overlay # :nodoc: val = 1 attributes = ['val', val] @writer.empty_tag('c:overlay', attributes) end # # Write the element. # def write_plot_vis_only # :nodoc: val = 1 attributes = ['val', val] @writer.empty_tag('c:plotVisOnly', attributes) end # # Write the element. # def write_print_settings # :nodoc: @writer.start_tag('c:printSettings') # Write the c:headerFooter element. write_header_footer # Write the c:pageMargins element. write_page_margins # Write the c:pageSetup element. write_page_setup @writer.end_tag('c:printSettings') end # # Write the element. # def write_header_footer # :nodoc: @writer.empty_tag('c:headerFooter') end # # Write the element. # def write_page_margins # :nodoc: b = 0.75 l = 0.7 r = 0.7 t = 0.75 header = 0.3 footer = 0.3 attributes = [ 'b', b, 'l', l, 'r', r, 't', t, 'header', header, 'footer', footer ] @writer.empty_tag('c:pageMargins', attributes) end # # Write the element. # def write_page_setup # :nodoc: @writer.empty_tag('c:pageSetup') end # # Write the element for a rich string. # def write_title_rich(title, horiz = nil) # :nodoc: @writer.start_tag('c:title') # Write the c:tx element. write_tx_rich(title, horiz) # Write the c:layout element. write_layout @writer.end_tag('c:title') end # # Write the element for a rich string. # def write_title_formula(title, data_id, horiz) # :nodoc: @writer.start_tag('c:title') # Write the c:tx element. write_tx_formula(title, data_id) # Write the c:layout element. write_layout # Write the c:txPr element. write_tx_pr(horiz) @writer.end_tag('c:title') end # # Write the element. # def write_tx_rich(title, horiz) # :nodoc: @writer.start_tag('c:tx') # Write the c:rich element. write_rich(title, horiz) @writer.end_tag('c:tx') end # # Write the element with a simple value such as for series names. # def write_tx_value(title) # :nodoc: @writer.start_tag('c:tx') # Write the c:v element. write_v(title) @writer.end_tag('c:tx') end # # Write the element. # def write_tx_formula(title, data_id) # :nodoc: data = @formula_data[data_id] if data_id @writer.start_tag('c:tx') # Write the c:strRef element. write_str_ref(title, data, 'str') @writer.end_tag('c:tx') end # # Write the element. # def write_rich(title, horiz) # :nodoc: @writer.start_tag('c:rich') # Write the a:bodyPr element. write_a_body_pr(horiz) # Write the a:lstStyle element. write_a_lst_style # Write the a:p element. write_a_p_rich(title) @writer.end_tag('c:rich') end # # Write the element. # def write_a_body_pr(horiz) # :nodoc: rot = -5400000 vert = 'horz' attributes = [ 'rot', rot, 'vert', vert ] attributes = [] if !horiz || horiz == 0 @writer.empty_tag('a:bodyPr', attributes) end # # Write the element. # def write_a_lst_style # :nodoc: @writer.empty_tag('a:lstStyle') end # # Write the element for rich string titles. # def write_a_p_rich(title) # :nodoc: @writer.start_tag('a:p') # Write the a:pPr element. write_a_p_pr_rich # Write the a:r element. write_a_r(title) @writer.end_tag('a:p') end # # Write the element for formula titles. # def write_a_p_formula(title) # :nodoc: @writer.start_tag('a:p') # Write the a:pPr element. write_a_p_pr_formula # Write the a:endParaRPr element. write_a_end_para_rpr @writer.end_tag('a:p') end # # Write the element for rich string titles. # def write_a_p_pr_rich # :nodoc: @writer.start_tag('a:pPr') # Write the a:defRPr element. write_a_def_rpr @writer.end_tag('a:pPr') end # # Write the element for formula titles. # def write_a_p_pr_formula # :nodoc: @writer.start_tag('a:pPr') # Write the a:defRPr element. write_a_def_rpr @writer.end_tag('a:pPr') end # # Write the element. # def write_a_def_rpr # :nodoc: @writer.empty_tag('a:defRPr') end # # Write the element. # def write_a_end_para_rpr # :nodoc: lang = 'en-US' attributes = ['lang', lang] @writer.empty_tag('a:endParaRPr', attributes) end # # Write the element. # def write_a_r(title) # :nodoc: @writer.start_tag('a:r') # Write the a:rPr element. write_a_r_pr # Write the a:t element. write_a_t(title) @writer.end_tag('a:r') end # # Write the element. # def write_a_r_pr # :nodoc: lang = 'en-US' attributes = ['lang', lang] @writer.empty_tag('a:rPr', attributes) end # # Write the element. # def write_a_t(title) # :nodoc: @writer.data_element('a:t', title) end # # Write the element. # def write_tx_pr(horiz) # :nodoc: @writer.start_tag('c:txPr') # Write the a:bodyPr element. write_a_body_pr(horiz) # Write the a:lstStyle element. write_a_lst_style # Write the a:p element. write_a_p_formula @writer.end_tag('c:txPr') end # # Write the element. # def write_marker(marker = nil) # :nodoc: marker ||= @default_marker return if marker.nil? || marker == 0 return if marker[:automatic] && marker[:automatic] != 0 @writer.start_tag('c:marker') # Write the c:symbol element. write_symbol(marker[:type]) # Write the c:size element. size = marker[:size] write_marker_size(size) if !size.nil? && size != 0 # Write the c:spPr element. write_sp_pr(marker) @writer.end_tag('c:marker') end # # Write the element without a sub-element. # def write_marker_value # :nodoc: style = @default_marker return unless style attributes = ['val', 1] @writer.empty_tag('c:marker', attributes) end # # Write the element. # def write_marker_size(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:size', attributes) end # # Write the element. # def write_symbol(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:symbol', attributes) end # # Write the element. # def write_sp_pr(series) # :nodoc: return if (!series.has_key?(:_line) || series[:_line][:_defined].nil? || series[:_line][:_defined]== 0) && (!series.has_key?(:_fill) || series[:_fill][:_defined].nil? || series[:_fill][:_defined]== 0) @writer.start_tag('c:spPr') # Write the a:solidFill element for solid charts such as pie and bar. write_a_solid_fill(series[:_fill]) if series[:_fill] && series[:_fill][:_defined] != 0 # Write the a:ln element. write_a_ln(series[:_line]) if series[:_line] && series[:_line][:_defined] @writer.end_tag('c:spPr') end # # Write the element. # def write_a_ln(line) # :nodoc: attributes = [] # Add the line width as an attribute. if width = line[:width] # Round width to nearest 0.25, like Excel. width = ((width + 0.125) * 4).to_i / 4.0 # Convert to internal units. width = (0.5 + (12700 * width)).to_i attributes = ['w', width] end @writer.start_tag('a:ln', attributes) # Write the line fill. if !line[:none].nil? && line[:none] != 0 # Write the a:noFill element. write_a_no_fill else # Write the a:solidFill element. write_a_solid_fill(line) end # Write the line/dash type. if type = line[:dash_type] # Write the a:prstDash element. write_a_prst_dash(type) end @writer.end_tag('a:ln') end # # Write the element. # def write_a_no_fill # :nodoc: @writer.empty_tag('a:noFill') end # # Write the element. # def write_a_solid_fill(line) # :nodoc: @writer.start_tag('a:solidFill') if line[:color] color = get_color(line[:color]) # Write the a:srgbClr element. write_a_srgb_clr(color) end @writer.end_tag('a:solidFill') end # # Write the element. # def write_a_srgb_clr(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('a:srgbClr', attributes) end # # Write the element. # def write_a_prst_dash(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('a:prstDash', attributes) end # # Write the element. # def write_trendline(trendline) # :nodoc: return unless trendline @writer.start_tag('c:trendline') # Write the c:name element. write_name(trendline[name]) # Write the c:spPr element. write_sp_pr(trendline) # Write the c:trendlineType element. write_trendline_type(trendline[type]) # Write the c:order element for polynomial trendlines. write_trendline_order(trendline[order]) if trendline[type] == 'poly' # Write the c:period element for moving average trendlines. write_period(trendline[period]) if trendline[type] == 'movingAvg' # Write the c:forward element. write_forward(trendline[forward]) # Write the c:backward element. write_backward(trendline[backward]) @writer.end_tag('c:trendline') end # # Write the element. # def write_trendline_type(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:trendlineType', attributes) end # # Write the element. # def write_name(data) # :nodoc: return unless data @writer.data_element('c:name', data) end # # Write the element. # def write_trendline_order(val = 2) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:order', attributes) end # # Write the element. # def write_period(val = 2) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:period', attributes) end # # Write the element. # def write_forward(val) # :nodoc: return unless val attributes = ['val', val] @writer.empty_tag('c:forward', attributes) end # # Write the element. # def write_backward(val) # :nodoc: return unless val attributes = ['val', val] @writer.empty_tag('c:backward', attributes) end # # Write the element. # def write_hi_low_lines # :nodoc: @writer.empty_tag('c:hiLowLines') end # # Write the element. # def write_overlap # :nodoc: val = 100 attributes = ['val', val] @writer.empty_tag('c:overlap', attributes) end # # Write the element. # def write_num_cache(data) # :nodoc: count = data.size @writer.start_tag('c:numCache') # Write the c:formatCode element. write_format_code('General') # Write the c:ptCount element. write_pt_count(count) (0 .. count - 1).each do |i| # Write the c:pt element. write_pt(i, data[i]) end @writer.end_tag('c:numCache') end # # Write the element. # def write_str_cache(data) # :nodoc: count = data.size @writer.start_tag('c:strCache') # Write the c:ptCount element. write_pt_count(count) (0 .. count - 1).each do |i| # Write the c:pt element. write_pt(i, data[i]) end @writer.end_tag('c:strCache') end # # Write the element. # def write_format_code(data) # :nodoc: @writer.data_element('c:formatCode', data) end # # Write the element. # def write_pt_count(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:ptCount', attributes) end # # Write the element. # def write_pt(idx, value) # :nodoc: return unless value attributes = ['idx', idx] @writer.start_tag('c:pt', attributes) # Write the c:v element. write_v(value) @writer.end_tag('c:pt') end # # Write the element. # def write_v(data) # :nodoc: @writer.data_element('c:v', data) end # # Write the element. # def write_protection # :nodoc: return if @protection == 0 @writer.empty_tag('c:protection') end # # Write the element. # def write_d_lbls(labels) # :nodoc: return unless labels @writer.start_tag('c:dLbls') # Write the c:showVal element. write_show_val if labels[value] # Write the c:showCatName element. write_show_cat_name if labels[category] # Write the c:showSerName element. write_show_ser_name if labels[series_name] @writer.end_tag('c:dLbls') end # # Write the element. # def write_show_val # :nodoc: val = 1 attributes = ['val', val] @writer.empty_tag('c:showVal', attributes) end # # Write the element. # def write_show_cat_name # :nodoc: val = 1 attributes = ['val', val] @writer.empty_tag('c:showCatName', attributes) end # # Write the element. # def write_show_ser_name # :nodoc: val = 1 attributes = ['val', val] @writer.empty_tag('c:showSerName', attributes) end # # Write the element. # def write_delete(val) # :nodoc: attributes = ['val', val] @writer.empty_tag('c:delete', attributes) end # # Write the element. # def write_c_invert_if_negative(invert = nil) # :nodoc: val = 1 return unless invert attributes = ['val', val] @writer.empty_tag('c:invertIfNegative', attributes) end end end