Class: Glimmer::DSL::SWT::ImageExpression

Inherits:
Expression
  • Object
show all
Includes:
ParentExpression, TopLevelExpression
Defined in:
lib/glimmer/dsl/swt/image_expression.rb

Overview

image expression Note: Cannot be a static expression because it clashes with image property expression

Instance Method Summary collapse

Instance Method Details

#add_content(parent, keyword, *args, &block) ⇒ Object 



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# File 'lib/glimmer/dsl/swt/image_expression.rb', line 60

def add_content(parent, keyword, *args, &block)
  return if @create_pixel_by_pixel || block&.parameters&.count == 2
  super
  parent.post_add_content
end

#can_interpret?(parent, keyword, *args, &block) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/dsl/swt/image_expression.rb', line 36

def can_interpret?(parent, keyword, *args, &block)
  options = args.last.is_a?(Hash) ? args.last : {}
  (keyword == 'image') and
    (
      options.keys.include?(:top_level) or
      (
        !parent.is_a?(Glimmer::SWT::Custom::Shape) and
        (parent.nil? or parent.respond_to?('image=') or args.first.is_a?(Numeric))
      )
    )
end

#interpret(parent, keyword, *args, &block) ⇒ Object 



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# File 'lib/glimmer/dsl/swt/image_expression.rb', line 48

def interpret(parent, keyword, *args, &block)
  options = args.last.is_a?(Hash) ? args.last : {}
  coordinate_args = args.size == (options.empty? ? 2 : 3)
  args.unshift(parent) unless parent.nil? || options[:top_level]
  @create_pixel_by_pixel = coordinate_args && block&.parameters&.count == 2
  if @create_pixel_by_pixel
    Glimmer::SWT::ImageProxy.create_pixel_by_pixel(*args, &block)
  else
    Glimmer::SWT::ImageProxy.create(*args, &block)
  end
end