Class: Emfsvg::Svg::ClipPathRegistry

Inherits:
Object
  • Object
show all
Defined in:
lib/emfsvg/svg/clip_path_registry.rb

Overview

Resolves clip-path="url(#X)" references to ClipPath value objects. Built once per Svg::Document by walking the section; queried by the translation layer when emitting clip records for a shape.

Constant Summary collapse

URL_RE = 
/\Aurl\(\s*#([^)\s]+)\s*\)\z/

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ClipPathRegistry

Returns a new instance of ClipPathRegistry.



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# File 'lib/emfsvg/svg/clip_path_registry.rb', line 12

def initialize
  @clip_paths = {}
end

Class Method Details

.collect_clip_paths(element, registry) ⇒ Object 



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# File 'lib/emfsvg/svg/clip_path_registry.rb', line 35

def self.collect_clip_paths(element, registry)
  return unless element

  registry.register(element) if element.is_a?(Elements::ClipPath)
  element.children.each { |c| collect_clip_paths(c, registry) }
end

.from_document(document) ⇒ Object 



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# File 'lib/emfsvg/svg/clip_path_registry.rb', line 29

def self.from_document(document)
  registry = new
  collect_clip_paths(document.root_element, registry)
  registry
end

Instance Method Details

#lookup(clip_path_attr) ⇒ Object 



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# File 'lib/emfsvg/svg/clip_path_registry.rb', line 20

def lookup(clip_path_attr)
  return nil if clip_path_attr.nil?

  match = clip_path_attr.match(URL_RE)
  return nil unless match

  @clip_paths[match[1]]
end

#register(clip_path) ⇒ Object 



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# File 'lib/emfsvg/svg/clip_path_registry.rb', line 16

def register(clip_path)
  @clip_paths[clip_path.id] = clip_path
end