Class: Bio::Graphics::Glyph::DirectedGeneric

Inherits:
Common
  • Object
show all
Defined in:
lib/bio/graphics/glyphs/directed_generic.rb

Instance Attribute Summary

Attributes inherited from Common

#feature_context, #subfeature

Instance Method Summary collapse

Methods inherited from Common

#initialize, #left_pixel, #right_pixel

Constructor Details

This class inherits a constructor from Bio::Graphics::Glyph::Common

Instance Method Details

#draw ⇒ Object 



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# File 'lib/bio/graphics/glyphs/directed_generic.rb', line 11

def draw
  if @subfeature.strand == -1 # Reverse strand
    @feature_context.rectangle(self.left_pixel+Bio::Graphics::FEATURE_ARROW_LENGTH, 0, self.right_pixel - self.left_pixel - Bio::Graphics::FEATURE_ARROW_LENGTH, Bio::Graphics::FEATURE_HEIGHT).fill
    arrow(@feature_context,:left,self.left_pixel+Bio::Graphics::FEATURE_ARROW_LENGTH,0,Bio::Graphics::FEATURE_ARROW_LENGTH)
    @feature_context.close_path.fill
  else #default is forward strand
    @feature_context.rectangle(self.left_pixel, 0, self.right_pixel- self.left_pixel - Bio::Graphics::FEATURE_ARROW_LENGTH, Bio::Graphics::FEATURE_HEIGHT).fill
    arrow(@feature_context,:right,self.right_pixel-Bio::Graphics::FEATURE_ARROW_LENGTH,0,Bio::Graphics::FEATURE_ARROW_LENGTH)
    @feature_context.close_path.fill
  end
end