Class: Vectory::Svg

Inherits:
Vector show all
Defined in:
lib/vectory/svg.rb

Constant Summary collapse

SVG_NS = 
"http://www.w3.org/2000/svg"

Instance Attribute Summary

Attributes inherited from Vector

#initial_path

Attributes inherited from Image

#content

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Vector

#file_size, from_datauri, from_path, #mime, #path, #size, #to_uri, #write

Methods inherited from Image

from_content, from_path

Constructor Details

#initialize(content = nil, initial_path = nil) ⇒ Svg

Returns a new instance of Svg.



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# File 'lib/vectory/svg.rb', line 28

def initialize(content = nil, initial_path = nil)
  super

  self.content = content
end

Class Method Details

.default_extension ⇒ Object 



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# File 'lib/vectory/svg.rb', line 9

def self.default_extension
  "svg"
end

.from_node(node) ⇒ Object 



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# File 'lib/vectory/svg.rb', line 17

def self.from_node(node)
  if node.elements&.first&.name == "svg"
    return from_content(node.children.to_xml)
  end

  uri = node["src"]
  return Vectory::Datauri.new(uri).to_vector if %r{^data:}.match?(uri)

  from_path(uri)
end

.mimetype ⇒ Object 



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# File 'lib/vectory/svg.rb', line 13

def self.mimetype
  "image/svg+xml"
end

Instance Method Details

#height ⇒ Object 



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# File 'lib/vectory/svg.rb', line 61

def height
  # Try to read height from SVG attributes first
  doc = Nokogiri::XML(content)
  svg_element = doc.at_xpath("//svg:svg",
                             "svg" => SVG_NS) || doc.at_xpath("//svg")

  if svg_element && svg_element["height"]
    svg_element["height"].to_f.round
  else
    # Fall back to Inkscape query if no height attribute
    super
  end
end

#to_emf ⇒ Object 



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# File 'lib/vectory/svg.rb', line 34

def to_emf
  InkscapeWrapper.convert(
    content: content,
    input_format: :svg,
    output_format: :emf,
    output_class: Emf,
  )
end

#to_eps ⇒ Object 



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# File 'lib/vectory/svg.rb', line 43

def to_eps
  InkscapeWrapper.convert(
    content: content,
    input_format: :svg,
    output_format: :eps,
    output_class: Eps,
  )
end

#to_ps ⇒ Object 



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# File 'lib/vectory/svg.rb', line 52

def to_ps
  InkscapeWrapper.convert(
    content: content,
    input_format: :svg,
    output_format: :ps,
    output_class: Ps,
  )
end

#width ⇒ Object 



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# File 'lib/vectory/svg.rb', line 75

def width
  # Try to read width from SVG attributes first
  doc = Nokogiri::XML(content)
  svg_element = doc.at_xpath("//svg:svg",
                             "svg" => SVG_NS) || doc.at_xpath("//svg")

  if svg_element && svg_element["width"]
    svg_element["width"].to_f.round
  else
    # Fall back to Inkscape query if no width attribute
    super
  end
end