Sha256: dba872d171554d91c71443a03cae3294507b596c56e0ab8b29c285ce7257e91f
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Size: 1.48 KB
Versions: 16
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Contents
# -*- encoding: utf-8 -*-
require 'webgen/path'
module Webgen
class Tag
# This tag allows you to create and use complex graphics using the PGF/TikZ library of LaTeX. It
# uses Webgen::ContentProcessor::Tikz for doing the hard work.
module Tikz
# Create a graphic (i.e. an HTML img tag) from the commands in the body of the tag.
def self.call(tag, body, context)
path = Webgen::Path.append(context.ref_node.parent.alcn, context[:config]['tag.tikz.path'])
path = Webgen::Path.new(path)
add_tikz_options!(path, context)
node = context.website.ext.path_handler.create_secondary_nodes(path, body, context.ref_node.alcn).first
attrs = {'alt' => ''}.merge(context[:config]['tag.tikz.img_attr']).collect do |name, value|
"#{name.to_s}=\"#{value}\""
end.sort.unshift('').join(' ')
"<img src=\"#{context.dest_node.route_to(node)}\"#{attrs} />"
end
# Add all needed options for Webgen::ContentProcessor::Tikz to the given path.
def self.add_tikz_options!(path, context)
%w[content_processor.tikz.resolution content_processor.tikz.transparent
content_processor.tikz.libraries content_processor.tikz.opts
content_processor.tikz.template].each do |opt|
path.meta_info[opt] = context[:config][opt]
end
path.meta_info['pipeline'] = 'tikz'
path.meta_info['handler'] = 'copy'
end
private_class_method :add_tikz_options!
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems