Module: TeachingPrintables::Shapeable

Defined in:
lib/teaching_printables/shapeable.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

Returns the value of attribute rule_unit.



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# File 'lib/teaching_printables/shapeable.rb', line 7

def rule_unit
  @rule_unit
end

Instance Method Details

#create_tens_and_ones_shapes(options = {}) ⇒ Object 



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# File 'lib/teaching_printables/shapeable.rb', line 19

def create_tens_and_ones_shapes(options={})
  # Start at position 3cm, 3cm from top left corner.  Keep drawing shapes until end of page
  
  fill_colors_enum = %W[red blue green orange].cycle
  
  if (page_number ==0) || (options[:start_new_page] == true)
    start_new_page
  end

  
  shape_position = [3.cm, rule_height-2.cm]
  page_height = rule_height - 4.cm
  remaining_rows = (page_height / rule_unit).floor 
  shapes_rows_arr = []
  
  while remaining_rows > 2
    shapes_rows_arr<<rand(3..[11,remaining_rows].min)
    remaining_rows = remaining_rows-shapes_rows_arr.last
  end
  
  shapes_rows_arr.each {|nrows|
    ones = rand(0..9)
    svg( SVGComponents::tens_and_ones_shape_svg(nrows-2,ones,fill_color=fill_colors_enum.next),
      width: 10*rule_unit, 
      height: (nrows-1)*rule_unit, 
      at: [shape_position[0],shape_position[1]-rule_unit])
    
      @document.fill_color = "FFFFFF"
      fill_and_stroke_rectangle [14.cm, shape_position[1]-1*rule_unit], 2.cm, 2.cm
      fill_and_stroke_rectangle [16.cm, shape_position[1]-1*rule_unit], 2.cm, 2.cm
      @document.fill_color = "000000"
      text_box "tens", :at => [14.cm, shape_position[1]-1*rule_unit], :width => 2.cm, :align => :center
      text_box "ones", :at => [16.cm, shape_position[1]-1*rule_unit], :width => 2.cm, :align => :center
          
    
      if ones == 0
        shape_position[1] = shape_position[1]-(nrows-1).cm
      else
        shape_position[1] = shape_position[1]-nrows.cm 
      end
      
  }  
   
end

#rule_height ⇒ Object 



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# File 'lib/teaching_printables/shapeable.rb', line 12

def rule_height
  bounds.top - bounds.bottom
end

#rule_width ⇒ Object 



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# File 'lib/teaching_printables/shapeable.rb', line 15

def rule_width 
  bounds.right - bounds.left
end