Merge pull request #96 from Prakriti-nith/charteditor_wrapper

Added Charteditor

Author: Shekharrajak

lib/daru/view/adapters/googlecharts.rb

@@ -1,6 +1,6 @@
 require 'google_visualr'
 require_relative 'googlecharts/iruby_notebook'
-require_relative 'googlecharts/display'
+require_relative 'googlecharts/google_visualr'
 require 'daru'
 require 'bigdecimal'
 require 'daru/view/constants'
@@ -58,6 +58,16 @@ module GooglechartsAdapter
         #   options = {type: :area}
         #   chart = Daru::View::Plot.new(data, options)
         #
+        # @example ChartEditor
+        #   data = [
+        #         ['Year', 'Sales', 'Expenses'],
+        #         ['2013',  1000,      400],
+        #         ['2014',  1170,      460],
+        #         ['2015',  660,       1120],
+        #         ['2016',  1030,      540]
+        #   ]
+        #   plot = Daru::View::Plot.new(data, {}, chart_class: 'Charteditor')
+        #
         # @example Multiple Charts in a row
         #   Draw the Daru::View::PlotList object with the data as an array of
         #   Daru::View::Plots(s) or Daru::View::Table(s) or both
@@ -115,6 +125,16 @@ def init(data=[], options={}, user_options={})
         #   query = 'SELECT A, H, O, Q, R, U LIMIT 5 OFFSET 8'
         #   data << query
         #   chart = Daru::View::Table.new(data)
+        #
+        # @example ChartEditor
+        #   data = [
+        #         ['Year', 'Sales', 'Expenses'],
+        #         ['2013',  1000,      400],
+        #         ['2014',  1170,      460],
+        #         ['2015',  660,       1120],
+        #         ['2016',  1030,      540]
+        #   ]
+        #   table = Daru::View::Table.new(data, {}, chart_class: 'Charteditor')
         def init_table(data=[], options={}, user_options={})
           # if `options` is something like this :
           # {
@@ -141,23 +161,6 @@ def init_table(data=[], options={}, user_options={})
           @table
         end
 
-        # @param data [Array, Daru::DataFrame, Daru::Vector, Daru::View::Table]
-        #   The data provided by the user to generate the google datatable.
-        #   Data in String format represents the URL of the google spreadsheet
-        #   from which data has to invoked
-        # @return [GoogleVisualr::DataTable] the table object will the data
-        #   filled
-        def get_table(data)
-          if data.is_a?(Daru::View::Table) &&
-             data.table.is_a?(GoogleVisualr::DataTable)
-            data.table
-          elsif data.is_a?(GoogleVisualr::DataTable)
-            data
-          else
-            add_data_in_table(data)
-          end
-        end
-
         # @param data [String] URL of the google spreadsheet from which data
         #   has to invoked
         # @return [Boolean, void] returns true for valid URL and raises error
@@ -216,6 +219,23 @@ def add_series(plot, opts={})
 
         private
 
+        # @param data [Array, Daru::DataFrame, Daru::Vector, Daru::View::Table]
+        #   The data provided by the user to generate the google datatable.
+        #   Data in String format represents the URL of the google spreadsheet
+        #   from which data has to invoked
+        # @return [GoogleVisualr::DataTable] the table object with the data
+        #   filled
+        def get_table(data)
+          if data.is_a?(Daru::View::Table) &&
+             data.table.is_a?(GoogleVisualr::DataTable)
+            data.table
+          elsif data.is_a?(GoogleVisualr::DataTable)
+            data
+          else
+            add_data_in_table(data)
+          end
+        end
+
         def extract_chart_type(options)
           # TODO: Imprvoe this method.
           chart_type = options[:type].nil? ? 'Line' : options.delete(:type)

lib/daru/view/adapters/googlecharts/base_chart.rb

@@ -18,6 +18,18 @@ def extract_option_view
       '\'\''
     end
 
+    # @param element_id [String] The ID of the DIV element that the Google
+    #   ChartEditor should be rendered in
+    # @return [String] Generates JavaScript for loading the charteditor package,
+    #   with callback to render ChartEditor
+    def load_js_chart_editor(element_id)
+      js = ''
+      js << "\n  google.load('visualization', '#{version}', "
+      js << " {packages: ['charteditor'], callback:"
+      js << " #{chart_function_name(element_id)}});"
+      js
+    end
+
     # Generates JavaScript function for rendering the chart when data is URL of
     #   the google spreadsheet
     #

lib/daru/view/adapters/googlecharts/data_table_iruby.rb

@@ -72,7 +72,9 @@ def google_table_version
     end
 
     def package_name
-      'table'
+      return 'table' unless
+      user_options && user_options[:chart_class].to_s.capitalize == 'Charteditor'
+      'charteditor'
     end
 
     # @return [String] Returns value of the view option provided by the user
@@ -91,8 +93,8 @@ def extract_option_view
     def load_js(element_id)
       js = ''
       js << "\n  google.load('visualization', #{google_table_version}, "
-      js << "\n {packages: ['#{package_name}'], callback:"
-      js << "\n #{chart_function_name(element_id)}});"
+      js << " {packages: ['#{package_name}'], callback:"
+      js << " #{chart_function_name(element_id)}});"
       js
     end