From 645cab50a9dcba603d34b0a2e20be5d2420e1905 Mon Sep 17 00:00:00 2001
From: Jurriaan Pruis <email@jurriaanpruis.nl>
Date: Fri, 23 Mar 2012 15:36:02 +0100
Subject: Added <definedNames> to workbook

---
 lib/axlsx/workbook/workbook.rb            | 7 +++++++
 lib/axlsx/workbook/worksheet/worksheet.rb | 8 ++++++++
 2 files changed, 15 insertions(+)

diff --git a/lib/axlsx/workbook/workbook.rb b/lib/axlsx/workbook/workbook.rb
index a8e0a1af..d57cf8a3 100644
--- a/lib/axlsx/workbook/workbook.rb
+++ b/lib/axlsx/workbook/workbook.rb
@@ -206,6 +206,13 @@ require 'axlsx/workbook/worksheet/table.rb'
               xml.sheet(:name=>sheet.name, :sheetId=>index+1, :"r:id"=>sheet.rId)
             end
           }
+          xml.definedNames {
+            @worksheets.each_with_index do |sheet, index|
+              if sheet.auto_filter
+                xml.definedName(sheet.abs_auto_filter, :name => '_xlnm._FilterDatabase', :localSheetId => index, :hidden => 1)
+              end
+            end
+          }
         }
       end
       builder.to_xml(:save_with => 0)
diff --git a/lib/axlsx/workbook/worksheet/worksheet.rb b/lib/axlsx/workbook/worksheet/worksheet.rb
index 5325294f..88d29432 100644
--- a/lib/axlsx/workbook/worksheet/worksheet.rb
+++ b/lib/axlsx/workbook/worksheet/worksheet.rb
@@ -210,6 +210,14 @@ module Axlsx
       @name=v
     end
 
+    # The absolute auto filter range
+    # @see auto_filter
+    def abs_auto_filter
+      "'#{@name}'!#{@auto_filter.split(':').collect { |name| 
+        name_to_cell(name).r_abs
+      }.join(':')}" if @auto_filter
+    end
+
     # The auto filter range for the worksheet
     # @param [String] v
     # @see auto_filter
-- 
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