Class: RubyCharts::Builder

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_charts/builder.rb

Instance Method Summary collapse

Constructor Details

#initialize(data) ⇒ Builder

Returns a new instance of Builder.



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# File 'lib/ruby_charts/builder.rb', line 5

def initialize(data)
  @data = data
  @chart_type = :bar
  @title = 'Chart'
  @subtitle = nil
  @colors = nil
  @legend = nil
end

Instance Method Details

#colors(*color_array) ⇒ Object 



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# File 'lib/ruby_charts/builder.rb', line 29

def colors(*color_array)
  @colors = color_array.flatten
  self
end

#legend(position: :right) ⇒ Object 



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# File 'lib/ruby_charts/builder.rb', line 34

def legend(position: :right)
  @legend = position
  self
end

#save(filename) ⇒ Object 



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# File 'lib/ruby_charts/builder.rb', line 39

def save(filename)
  chart = build_chart
  chart.title(@title)
  chart.subtitle(@subtitle)
  chart.colors(*@colors) if @colors
  chart.legend(position: @legend) if @legend
  
  chart.save(filename)
end

#subtitle(text) ⇒ Object 



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# File 'lib/ruby_charts/builder.rb', line 24

def subtitle(text)
  @subtitle = text
  self
end

#title(text) ⇒ Object 



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# File 'lib/ruby_charts/builder.rb', line 19

def title(text)
  @title = text
  self
end

#type(chart_type) ⇒ Object 



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# File 'lib/ruby_charts/builder.rb', line 14

def type(chart_type)
  @chart_type = chart_type
  self
end