Class: Laser::Cutter::Renderer::MetaRenderer

Inherits:
Base
  • Object
show all
Defined in:
lib/laser-cutter/renderer/meta_renderer.rb

Constant Summary collapse

META_KEYS = 
%w(units width height depth thickness notch kerf stroke padding margin page_size page_layout)

Constants inherited from Base

Base::BLACK, Base::BLUE

Instance Attribute Summary

Attributes inherited from Base

#config, #enclosure, #page_manager, #subject

Instance Method Summary collapse

Methods inherited from Base

#units

Constructor Details

#initialize(config = {}) ⇒ MetaRenderer

Returns a new instance of MetaRenderer.



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# File 'lib/laser-cutter/renderer/meta_renderer.rb', line 6

def initialize(config = {})
  self.config = config
  self.enclosure = Laser::Cutter::Geometry::Rect.create(Laser::Cutter::Geometry::Point[1, 1], 140, 150)
end

Instance Method Details

#render(pdf = nil) ⇒ Object 



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# File 'lib/laser-cutter/renderer/meta_renderer.rb', line 11

def render pdf = nil
  banner = <<-EOF

  Made with Laser Cutter Ruby Gem (v#{Laser::Cutter::VERSION})
  Credits to Prawn for ruby PDF generation,
  and BoxMaker for inspiration.

  Online: http://makeabox.io/
  Source: https://github.com/kigster/laser-cutter
  EOF

  meta_color = BLUE
  meta_top_height = 55

  metadata = config.to_hash
  metadata['page_size'] ||= 'custom'
  metadata.delete('page_layout') if metadata['page_size'].eql?('custom')

  meta_fields = META_KEYS.find_all{|k| metadata[k]}.join(": \n") + ": \n"
  meta_values = META_KEYS.find_all{|k| metadata[k]}.map{|k| metadata[k] }.join("\n")

  rect = self.enclosure

  pdf.instance_eval do
    self.line_width = 0.2.mm
    float do
      bounding_box([rect.p1.x, rect.h + rect.p1.y], :width => rect.w, :height => rect.h) do
        stroke_color meta_color
        stroke_bounds

        # Print banner
        indent 10 do
          font('Helvetica', :size => 6) do
            text banner, :color => meta_color
          end
        end

        # print values of the config, in two parts – keys right aligned first, values left aligned second.
        float do
          bounding_box([0, rect.h - meta_top_height],
                       :width => rect.w,
                       :height => rect.h - meta_top_height) do
            float do
              bounding_box([0, rect.h - meta_top_height], :width => 70, :height => rect.h - meta_top_height) do
                indent 10 do
                  font('Helvetica', :size => 7) do
                    text meta_fields, :color => meta_color, align: :right
                  end
                end
              end
            end
            float do
              bounding_box([60, rect.h - meta_top_height], :width => 70, :height => rect.h - meta_top_height) do
                indent 10 do
                  font('Helvetica', :size => 7) do
                    text meta_values, :color => meta_color
                  end
                end
              end
            end
          end
        end
      end
    end
  end
end