rebuild all serialization to use string concatenation instead of nokogiri.

1 files changed, 19 insertions, 10 deletions

diff --git a/lib/axlsx/stylesheet/gradient_fill.rb b/lib/axlsx/stylesheet/gradient_fill.rb
index 6090b570..2a789c6f 100644
--- a/lib/axlsx/stylesheet/gradient_fill.rb
+++ b/lib/axlsx/stylesheet/gradient_fill.rb
@@ -1,11 +1,11 @@
 # encoding: UTF-8
 module Axlsx
   # A GradientFill defines the color and positioning for gradiant cell fill.
-  # @see Open Office XML Part 1 §18.8.24  
+  # @see Open Office XML Part 1 §18.8.24
   class GradientFill
 
     # The type of gradient.
-    # @note 
+    # @note
     #  valid options are
     #   :linear
     #   :path
@@ -26,7 +26,7 @@ module Axlsx
 
     # Percentage format top
     # @return [Float]
-    attr_reader :top 
+    attr_reader :top
 
     # Percentage format bottom
     # @return [Float]
@@ -35,7 +35,7 @@ module Axlsx
     # Collection of stop objects
     # @return [SimpleTypedList]
     attr_reader :stop
-    
+
     # Creates a new GradientFill object
     # @option options [Symbol] type
     # @option options [Float] degree
@@ -52,18 +52,27 @@ module Axlsx
     end
 
     # @see type
-    def type=(v) Axlsx::validate_gradient_type v; @type = v end    
+    def type=(v) Axlsx::validate_gradient_type v; @type = v end
     # @see degree
-    def degree=(v) Axlsx::validate_float v; @degree = v end    
+    def degree=(v) Axlsx::validate_float v; @degree = v end
     # @see left
-    def left=(v) DataTypeValidator.validate "GradientFill.left", Float, v, lambda { |arg| arg >= 0.0 && arg <= 1.0}; @left = v end    
+    def left=(v) DataTypeValidator.validate "GradientFill.left", Float, v, lambda { |arg| arg >= 0.0 && arg <= 1.0}; @left = v end
     # @see right
-    def right=(v) DataTypeValidator.validate "GradientFill.right", Float, v, lambda { |arg| arg >= 0.0 && arg <= 1.0}; @right = v end    
+    def right=(v) DataTypeValidator.validate "GradientFill.right", Float, v, lambda { |arg| arg >= 0.0 && arg <= 1.0}; @right = v end
     # @see top
-    def top=(v) DataTypeValidator.validate "GradientFill.top", Float, v, lambda { |arg| arg >= 0.0 && arg <= 1.0}; @top = v end    
+    def top=(v) DataTypeValidator.validate "GradientFill.top", Float, v, lambda { |arg| arg >= 0.0 && arg <= 1.0}; @top = v end
     # @see bottom
-    def bottom=(v) DataTypeValidator.validate "GradientFill.bottom", Float, v, lambda { |arg| arg >= 0.0 && arg <= 1.0}; @bottom= v end    
+    def bottom=(v) DataTypeValidator.validate "GradientFill.bottom", Float, v, lambda { |arg| arg >= 0.0 && arg <= 1.0}; @bottom= v end
+
 
+    def to_xml_string(str = '')
+      str << '<gradientFill'
+      h = self.instance_values.reject { |k,v| k.to_sym == :stop }
+      str << h.map { |key, value| '' << key.to_s << '="' << value.to_s << '"' }.join(' ')
+      str << '>'
+      @stop.each { |s| s.to_xml_string(str) }
+      str << '</gradientFill>'
+    end
     # Serializes the gradientFill
     # @param [Nokogiri::XML::Builder] xml The document builder instance this objects xml will be added to.
     # @return [String]