add lineChart (2D) and show_marker to LineSeries (for 2D line chart)

1 files changed, 87 insertions, 0 deletions

diff --git a/lib/axlsx/drawing/line_chart.rb b/lib/axlsx/drawing/line_chart.rb
new file mode 100644
index 00000000..e926fb79
--- /dev/null
+++ b/lib/axlsx/drawing/line_chart.rb
@@ -0,0 +1,87 @@
+# encoding: UTF-8
+module Axlsx
+
+  # The LineChart is a two dimentional line chart (who would have guessed?) that you can add to your worksheet.
+  # @example Creating a chart
+  #   # This example creates a line in a single sheet.
+  #   require "rubygems" # if that is your preferred way to manage gems!
+  #   require "axlsx"
+  #
+  #   p = Axlsx::Package.new
+  #   ws = p.workbook.add_worksheet
+  #   ws.add_row ["This is a chart with no data in the sheet"]
+  #
+  #   chart = ws.add_chart(Axlsx::LineChart, :start_at=> [0,1], :end_at=>[0,6], :title=>"Most Popular Pets")
+  #   chart.add_series :data => [1, 9, 10], :labels => ["Slimy Reptiles", "Fuzzy Bunnies", "Rottweiler"]
+  #
+  # @see Worksheet#add_chart
+  # @see Worksheet#add_row
+  # @see Chart#add_series
+  # @see Series
+  # @see Package#serialize
+  class LineChart < Chart
+
+    # the category axis
+    # @return [CatAxis]
+    attr_reader :catAxis
+
+    # the category axis
+    # @return [ValAxis]
+    attr_reader :valAxis
+
+    # the category axis
+    # @return [Axis]
+    attr_reader :serAxis
+
+    # must be one of  [:percentStacked, :clustered, :standard, :stacked]
+    # @return [Symbol]
+    attr_reader :grouping
+
+    # Creates a new line chart object
+    # @param [GraphicFrame] frame The workbook that owns this chart.
+    # @option options [Cell, String] title
+    # @option options [Boolean] show_legend
+    # @option options [Symbol] grouping
+    # @see Chart
+    def initialize(frame, options={})
+      @vary_colors = false
+      @grouping = :standard
+      @catAxId = rand(8 ** 8)
+      @valAxId = rand(8 ** 8)
+      @serAxId = rand(8 ** 8)
+      @catAxis = CatAxis.new(@catAxId, @valAxId)
+      @valAxis = ValAxis.new(@valAxId, @catAxId)
+      @serAxis = SerAxis.new(@serAxId, @valAxId)
+      super(frame, options)
+      @series_type = LineSeries
+      @d_lbls = nil
+    end
+
+    # @see grouping
+    def grouping=(v)
+      RestrictionValidator.validate "Bar3DChart.grouping", [:percentStacked, :standard, :stacked], v
+      @grouping = v
+    end
+
+    # Serializes the object
+    # @param [String] str
+    # @return [String]
+    def to_xml_string(str = '')
+      super(str) do |str_inner|
+        str_inner << "<c:#{self.class.name.camelcase(:lower)}>"
+        str_inner << '<c:grouping val="' << grouping.to_s << '"/>'
+        str_inner << '<c:varyColors val="' << vary_colors.to_s << '"/>'
+        @series.each { |ser| ser.to_xml_string(str_inner) }
+        @d_lbls.to_xml_string(str) if @d_lbls
+        yield str_inner
+        str_inner << '<c:axId val="' << @catAxId.to_s << '"/>'
+        str_inner << '<c:axId val="' << @valAxId.to_s << '"/>'
+        str_inner << '<c:axId val="' << @serAxId.to_s << '"/>'
+        str_inner << "</c:#{self.class.name.camelcase(:lower)}>"
+        @catAxis.to_xml_string str_inner
+        @valAxis.to_xml_string str_inner
+        @serAxis.to_xml_string str_inner
+      end
+    end
+  end
+end