Class: Prawn::Table::Cell::Text

Inherits:
Object
  • Object
show all
Includes:
Asciidoctor::Logging
Defined in:
lib/asciidoctor/pdf/ext/prawn-table/cell/text.rb

Constant Summary collapse

ImageTagRx = 
/<img(?: [^>]+ )?width="([^"]+)"[^>]*>/

Instance Method Summary collapse

Instance Method Details

#draw_content ⇒ Object 



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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/text.rb', line 10

def draw_content
  with_font do
    self.valign = [:center, -font.descender * 0.5] if valign == :center
    (bounds = @pdf.bounds).instance_variable_set :@table_cell, true
    remaining_text = with_text_color do
      (text_box width: bounds.width, height: bounds.height, at: [0, @pdf.cursor]).render
    end
    unless remaining_text.empty? || @pdf.scratch?
      logger.error message_with_context %(the table cell on page #{@pdf.page_number} has been truncated; Asciidoctor PDF does not support table cell content that exceeds the height of a single page), source_location: @source_location
    end
  end
end

#styled_width_of(text) ⇒ Object 



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# File 'lib/asciidoctor/pdf/ext/prawn-table/cell/text.rb', line 27

def styled_width_of text
  # NOTE: remove :style since it's handled by with_font
  options = @text_options.reject {|k| k == :style }
  width_of_images = 0
  if (inline_format = @text_options.key? :inline_format) && (text.include? '<img ')
    placeholder_width = styled_width_of 'M'
    text = text.gsub ImageTagRx do
      if (pctidx = $1.index '%')
        if pctidx == $1.length - 1 # rubocop:disable Style/GuardClause
          # TODO: look up the intrinsic image width in pixels
          #width_of_images += (<image width> - placeholder_width)
          next ''
        else
          width_of_images += (($1.slice pctidx + 1, $1.length).to_f - placeholder_width)
        end
      else
        width_of_images += ($1.to_f - placeholder_width)
      end
      'M'
    end
  end
  if inline_format && text.length > 3 && (text.include? '<br>')
    (text.split '<br>').map {|line| (line = line.strip).empty? ? 0 : with_font { @pdf.width_of line, options } }.max + width_of_images
  else
    with_font { @pdf.width_of text, options } + width_of_images
  end
end