Module: NtiReceiptBuilder::RenderHelper

Defined in:
app/helpers/nti_receipt_builder/render_helper.rb

Overview

View helpers for the shared render partials. These are rendered from more than one host controller — the designer's preview/print and a printed receipt — so they live here rather than in a controller-scoped helper.

Instance Method Summary collapse

Instance Method Details

#paper_style(receipt_template, render_result) ⇒ Object

The paper element's inline size: fixed to the declared dimensions, except in "content" height mode where it grows to fit whatever the renderer computed so nothing gets clipped.



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# File 'app/helpers/nti_receipt_builder/render_helper.rb', line 10

def paper_style(receipt_template, render_result)
  height_mm = if receipt_template.content_layout?
                [receipt_template.paper_height_mm.to_f,
                 render_result.content_height_mm + receipt_template.margin_bottom_mm.to_f].max
              else
                receipt_template.paper_height_mm.to_f
              end

  "width: #{receipt_template.paper_width_mm.to_f}mm; height: #{height_mm}mm;"
end