Class: Shoes::Swt::ColorFactory

Inherits:
Object
  • Object
show all
Defined in:
shoes-swt/lib/shoes/swt/color_factory.rb

Overview

ColorFactory is used for tracking SWT-backed resources related to colors that potentially need to get disposed. It can additionally take gradients and maybe other values, though, so it can’t assume values will be disposable.

Additionally this factory does caching against the DSL element so we don’t needlessly generate things like OS colors over and over again.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ColorFactory

Returns a new instance of ColorFactory.



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# File 'shoes-swt/lib/shoes/swt/color_factory.rb', line 13

def initialize
  @swt_elements = {}
end

Instance Method Details

#create(element) ⇒ Object 



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# File 'shoes-swt/lib/shoes/swt/color_factory.rb', line 24

def create(element)
  return nil if element.nil?
  return @swt_elements[element] if @swt_elements.include?(element)
  swt_element = ::Shoes.backend_for(element)
  @swt_elements[element] = swt_element
  swt_element
end

#dispose ⇒ Object 



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# File 'shoes-swt/lib/shoes/swt/color_factory.rb', line 17

def dispose
  @swt_elements.each_value do |swt_element|
    swt_element.dispose if swt_element.respond_to?(:dispose)
  end
  @swt_elements.clear
end