Class: Laser::Cutter::Renderer::LayoutRenderer

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

Constant Summary

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) ⇒ LayoutRenderer 



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# File 'lib/laser-cutter/renderer/layout_renderer.rb', line 7

def initialize(config)
  self.config = config
  super(config)
end

Instance Method Details

#calculate_image_boundary(box_renderer, margin) ⇒ Object 



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# File 'lib/laser-cutter/renderer/layout_renderer.rb', line 50

def calculate_image_boundary(box_renderer, margin)
  box_renderer.enclosure.to_a[1].map do |c|
    c.send(config.units.to_sym) + 2 * margin
  end
end

#render ⇒ Object 



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# File 'lib/laser-cutter/renderer/layout_renderer.rb', line 12

def render
  renderer = self
  renderers = []

  box_renderer = BoxRenderer.new(config)
  renderers << box_renderer

  if config.metadata
    meta_renderer = MetaRenderer.new(config)
    renderers << meta_renderer
    box_renderer.ensure_space_for(meta_renderer.enclosure)
  end

  if config.debug
    unkerfed_config = Laser::Cutter::Configuration.new(config.to_hash)
    unkerfed_config.merge!(kerf: 0.0, color: 'DD2211')
    unkerfed_box_renderer = BoxRenderer.new(unkerfed_config)
    unkerfed_box_renderer.ensure_space_for(meta_renderer.enclosure) if meta_renderer
    renderers << unkerfed_box_renderer
  end

  margin = config.margin.to_f.send(config.units.to_sym)
  page_size = config.page_size || calculate_image_boundary(box_renderer, margin)

  pdf = Prawn::Document.new(:margin => margin,
                            :page_size => page_size,
                            :page_layout => self.config.page_layout.to_sym)

  pdf.instance_eval do
    renderers.each {|r|  r.render(self) }
    render_file(renderer.config.file)
  end

  if config.verbose
    puts "PDF saved to #{config.file}."
  end
end