class Prawn::SVG::Document

Constants

DEFAULT_FALLBACK_FONT_NAME
Error
InvalidSVGData

Attributes

css_parser[R]
elements_by_id[R]
fallback_font_name[R]
font_registry[R]
gradients[R]
root[R]
sizing[R]
url_loader[R]
warnings[R]

An Array of warnings that occurred while parsing the SVG data.

Public Class Methods

new(data, bounds, options, font_registry: nil) { |self| ... } click to toggle source
# File lib/prawn/svg/document.rb, line 17
def initialize(data, bounds, options, font_registry: nil)
  @root = REXML::Document.new(data).root

  if @root.nil?
    if data.respond_to?(:end_with?) && data.end_with?(".svg")
      raise InvalidSVGData, "The data supplied is not a valid SVG document.  It looks like you've supplied a filename instead; use IO.read(filename) to get the data before you pass it to prawn-svg."
    else
      raise InvalidSVGData, "The data supplied is not a valid SVG document."
    end
  end

  @warnings = []
  @options = options
  @elements_by_id = {}
  @gradients = {}
  @fallback_font_name = options.fetch(:fallback_font_name, DEFAULT_FALLBACK_FONT_NAME)
  @font_registry = font_registry

  @url_loader = Prawn::SVG::UrlLoader.new(
    enable_cache:          options[:cache_images],
    enable_web:            options.fetch(:enable_web_requests, true),
    enable_file_with_root: options[:enable_file_requests_with_root]
  )

  @sizing = Prawn::SVG::Calculators::DocumentSizing.new(bounds, @root.attributes)
  calculate_sizing(requested_width: options[:width], requested_height: options[:height])

  @css_parser = CssParser::Parser.new

  yield self if block_given?
end

Public Instance Methods

calculate_sizing(requested_width: nil, requested_height: nil) click to toggle source
# File lib/prawn/svg/document.rb, line 49
def calculate_sizing(requested_width: nil, requested_height: nil)
  sizing.requested_width = requested_width
  sizing.requested_height = requested_height
  sizing.calculate
end