Module: TeachingPrintables::QuadRulable

Defined in:
lib/teaching_printables/quad_rulable.rb

Overview

Creates quadrille rulings on paper. Delegates Prawn methods to Prawn::Document.

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#rule_unit ⇒ Object

Make quadrille rules



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# File 'lib/teaching_printables/quad_rulable.rb', line 9

def rule_unit
  @rule_unit
end

Instance Method Details

#create_quad_rule(options = {}) ⇒ Object 



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# File 'lib/teaching_printables/quad_rulable.rb', line 21

def create_quad_rule(options={})
  parse_options(options)
  puts rule_unit
  ncols = (rule_width.to_f/rule_unit).ceil
  nrows = (rule_height.to_f/rule_unit).ceil
  
 
  #Create svg grid with 10pxX10px unit square.  
  #str = SVGComponents::header(@width,@height)
  str = SVGComponents::quad_ruled_grid(nrows,ncols)  
  #str << SVGComponents::footer

  if (page_number ==0) || (options[:start_new_page] == true)
    start_new_page
  end
  
  svg(str,width: ncols*rule_unit, height: nrows*rule_unit, at:[0,rule_height]) #position: :center, vposition: :center)
  
end

#rule_height ⇒ Object 



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# File 'lib/teaching_printables/quad_rulable.rb', line 14

def rule_height
  bounds.top - bounds.bottom
end

#rule_width ⇒ Object 



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# File 'lib/teaching_printables/quad_rulable.rb', line 17

def rule_width 
  bounds.right - bounds.left
end