Class: PandaCanvas::DrawingCleanRoom

Inherits:
Object
  • Object
show all
Defined in:
lib/panda_canvas/drawing_clean_room.rb

Overview

DrawingCleanRoom is used to capture and store method calls for delayed execution.

Constant Summary collapse

FLUSH =

Signature for the flush method. This method is used to stop calculation and draw the frame.

[:flush].freeze

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DrawingCleanRoom

Initializes the clean object for method call capturing.



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# File 'lib/panda_canvas/drawing_clean_room.rb', line 18

def initialize
  @_calls = []
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(sym, *args) ⇒ Object

Capures and stores all missing method calls in the instance.



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# File 'lib/panda_canvas/drawing_clean_room.rb', line 23

def method_missing(sym, *args)
  if sym == :flush
    @_calls << FLUSH
  elsif (DrawingMethods::CANVAS_CALLS.include? sym) ||
    (Gosu::Image.public_instance_methods.include? sym)
    @_calls << [sym, *args]
  else
    super
  end
end

Instance Method Details

#calls ⇒ Object

Returns an array of captured method calls. A flush is appended at the end.



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# File 'lib/panda_canvas/drawing_clean_room.rb', line 13

def calls
  @_calls + [FLUSH]
end