Class: Bio::Graphics::Glyph::LineWithHandles

Inherits:
Common
  • Object
show all
Defined in:
lib/bio/graphics/glyphs/line_with_handles.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/line_with_handles.rb', line 11

def draw
  @feature_context.move_to(self.left_pixel,Bio::Graphics::FEATURE_ARROW_LENGTH)               
  @feature_context.line_to(self.right_pixel,Bio::Graphics::FEATURE_ARROW_LENGTH)
  @feature_context.stroke

  @feature_context.set_source_rgb([0,0,0])
  arrow(@feature_context,:right,self.left_pixel,0,Bio::Graphics::FEATURE_ARROW_LENGTH)
  @feature_context.close_path.stroke              
  arrow(@feature_context,:left,self.right_pixel,0,Bio::Graphics::FEATURE_ARROW_LENGTH)
  @feature_context.close_path.stroke

  @feature_context.set_source_rgb(@subfeature.colour)
end