Class: Label

Inherits:
Object
  • Object
show all
Defined in:
lib/printing_labels.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Label

margin top devo considerare la linea del template circa un cm.2 meno



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# File 'lib/printing_labels.rb', line 6

def initialize
  @p_height = 296
  @p_width = 210
  @labels = []
  @start_number = 1
  @label_layout = LabelLayout.new(:type => "Tipo A", :border => true, :n_row => 7, :n_col=> 2, :pm_top => 25, :pm_left => 5, :pm_bottom => 24, :pm_right => 5.5, :l_width => 98, :l_height => 35.5, :lm_left => 0, :lm_right => 0, :lm_top => 0, :lm_bottom => 0, :label_padding => 8, :lm_inter => 2, :text_size => 14, :line_height => 7)       
end

Instance Attribute Details

#label_layout ⇒ Object (readonly)

Returns the value of attribute label_layout.



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# File 'lib/printing_labels.rb', line 3

def label_layout
  @label_layout
end

#labels ⇒ Object (readonly)

Returns the value of attribute labels.



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# File 'lib/printing_labels.rb', line 3

def labels
  @labels
end

#p_height ⇒ Object (readonly)

Returns the value of attribute p_height.



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# File 'lib/printing_labels.rb', line 3

def p_height
  @p_height
end

#p_width ⇒ Object (readonly)

Returns the value of attribute p_width.



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# File 'lib/printing_labels.rb', line 3

def p_width
  @p_width
end

#startnumber ⇒ Object

Returns the value of attribute startnumber.



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# File 'lib/printing_labels.rb', line 4

def startnumber
  @startnumber
end

#template ⇒ Object (readonly)

Returns the value of attribute template.



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# File 'lib/printing_labels.rb', line 3

def template
  @template
end

Instance Method Details

#add(text) ⇒ Object 



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# File 'lib/printing_labels.rb', line 22

def add(text)
  item = @labels.find {|i| i.include?("#{text}")}
  @labels << text unless item
end

#empty! ⇒ Object 



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# File 'lib/printing_labels.rb', line 31

def empty!
  @labels = []
end

#present?(text) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/printing_labels.rb', line 109

def present? text
  item = @labels.find {|i| true if i.inspect == text.inspect}
  return true if item
  return false unless item
end

#print ⇒ Object 



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# File 'lib/printing_labels.rb', line 35

def print
  pdf = PDF::Writer.new(:paper => "A4")   
  @counter = -1
  
  #pdf configuration
  pdf.stroke_color  Color::RGB::Grey
  
  
  # Set page margins in point
  set_page_margins_in_pt pdf
  
  #Get initial pointer position
  x = pdf.absolute_left_margin
  y = pdf.absolute_top_margin
  
  #label dimension in point
  label_width = pdf.mm2pts(self.label_layout.l_width)
  label_height = pdf.mm2pts(self.label_layout.l_height)
  label_wrap_text = pdf.mm2pts(self.label_layout.l_width) - pdf.mm2pts(self.label_layout.label_padding)
  
  check = false
  
  start_point = self.startnumber.divmod(self.label_layout.n_col)
  # cicle an rows
  (1..self.label_layout.n_row).collect do |r|  
    if r > start_point[0]
      if check == true or start_point[1] == 0
        @counter += 1
        # Show the labels border if :border = true
        pdf.fill_color  Color::RGB::White
        pdf.rounded_rectangle(x, y, label_width, label_height, 5).close_fill_stroke if self.label_layout.border
        pdf.fill_color Color::RGB::Black
        
        ny = y
        self.labels[@counter].split("\n").each do |nl|
          ny -= pdf.mm2pts(self.label_layout.line_height)
          pdf.add_text_wrap(pdf.mm2pts(self.label_layout.label_padding), ny, label_wrap_text, "#{nl}", size = self.label_layout.text_size)
        end unless self.labels[@counter] == nil
        
      end
      # cicle an columns
      (1..self.label_layout.n_col - 1).collect do |i|
        if check == false and i == start_point[1]
          check = true
          @counter += 1
          pdf.fill_color  Color::RGB::White
          pdf.rounded_rectangle(x + (pdf.mm2pts(self.label_layout.l_width + self.label_layout.lm_inter) * i), y, pdf.mm2pts(self.label_layout.l_width), pdf.mm2pts(self.label_layout.l_height), 5).close_fill_stroke if self.label_layout.border
          pdf.fill_color Color::RGB::Black

          ny = y
          self.labels[@counter].split("\n").each do |nl|
            ny -= pdf.mm2pts(self.label_layout.line_height)
            pdf.add_text_wrap((pdf.mm2pts(self.label_layout.l_width + self.label_layout.lm_inter) * i) + pdf.mm2pts(self.label_layout.label_padding), ny, label_wrap_text, "#{nl}", size = self.label_layout.text_size)
          end unless self.labels[@counter] == nil

        else
          @counter += 1
          pdf.fill_color Color::RGB::White
          pdf.rounded_rectangle(x + (pdf.mm2pts(self.label_layout.l_width + self.label_layout.lm_inter) * i), y, pdf.mm2pts(self.label_layout.l_width), pdf.mm2pts(self.label_layout.l_height), 5).close_fill_stroke if self.label_layout.border
          pdf.fill_color Color::RGB::Black

          ny = y
          self.labels[@counter].split("\n").each do |nl|
            ny -= pdf.mm2pts(self.label_layout.line_height)
            pdf.add_text_wrap((pdf.mm2pts(self.label_layout.l_width  + self.label_layout.lm_inter) * i) + pdf.mm2pts(self.label_layout.label_padding), ny, label_wrap_text, "#{nl}", size = self.label_layout.text_size)
          end unless self.labels[@counter] == nil
        end    
      end 
    end
    y -= (pdf.mm2pts(self.label_layout.l_height) + pdf.mm2pts(self.label_layout.lm_bottom))
  end
  return pdf
end

#remove(index) ⇒ Object 



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# File 'lib/printing_labels.rb', line 27

def remove(index)
  @labels.delete_at(index.to_i)
end

#set_template(args) ⇒ Object 



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# File 'lib/printing_labels.rb', line 18

def set_template(args)
  @label_layout = LabelLayout.new(args)       
end

#which_template? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/printing_labels.rb', line 14

def which_template?
  @template = @label_layout.type
end