dot2svg

dot2svg.scala

  def svg2xml(svgString: String) = {
    import org.apache.batik.dom.svg.SVGDOMImplementation;
    import org.apache.batik.util.XMLResourceDescriptor
    import org.apache.batik.dom.svg.SAXSVGDocumentFactory

    val uri = SVGDOMImplementation.SVG_NAMESPACE_URI;

    val doc = using(new java.io.StringReader(svgString)) { reader =>
      val parser = XMLResourceDescriptor.getXMLParserClassName();
      val f = new SAXSVGDocumentFactory(parser);
      f.createSVGDocument(uri, reader);
    }

    val gs = doc.getElementsByTagNameNS(uri, "g")
    for (i <- 0 until gs.getLength) {
      val g = gs.item(i)
      val attributes = g.getAttributes
      val clazz = attributes.getNamedItem("class").getNodeValue

      if (clazz == "node") {
        val children = g.getChildNodes
        for (j <- 0 until children.getLength) {
          val child = children.item(j)
          if (child.getNodeName == "title") {
            val text = child.getFirstChild.getNodeValue

            import org.w3c.dom.events._
            g.asInstanceOf[EventTarget].addEventListener("click",
              new EventListener() { def handleEvent(e: Event) { println("click: " + e) } },
              true);
          }
        }
      }
    }

    doc
  }