| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* $Id$ */ |
| package org.apache.fop.fonts.truetype; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.io.StringReader; |
| import java.io.StringWriter; |
| |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.DocumentBuilderFactory; |
| import javax.xml.parsers.ParserConfigurationException; |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.TransformerException; |
| import javax.xml.transform.TransformerFactory; |
| import javax.xml.transform.dom.DOMSource; |
| import javax.xml.transform.stream.StreamResult; |
| |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| |
| import org.apache.xmlgraphics.util.uri.DataURLUtil; |
| |
| public class SVGGlyphData { |
| protected long svgDocOffset; |
| protected long svgDocLength; |
| private String svg; |
| public float scale = 1; |
| |
| public void setSVG(String svg) { |
| this.svg = svg; |
| } |
| |
| public String getDataURL(int height) { |
| try { |
| String modifiedSVG = updateTransform(svg, height); |
| return DataURLUtil.createDataURL(new ByteArrayInputStream(modifiedSVG.getBytes("UTF-8")), "image/svg"); |
| } catch (IOException | TransformerException | SAXException | ParserConfigurationException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| private String updateTransform(String svg, int height) |
| throws IOException, ParserConfigurationException, SAXException, TransformerException { |
| DocumentBuilder documentBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); |
| InputSource inputSource = new InputSource(); |
| inputSource.setCharacterStream(new StringReader(svg)); |
| Document doc = documentBuilder.parse(inputSource); |
| NodeList nodes = doc.getElementsByTagName("g"); |
| Element gElement = (Element) nodes.item(0); |
| if (gElement != null) { |
| String transform = gElement.getAttribute("transform"); |
| if (transform.contains("scale(")) { |
| String scaleStr = transform.split("scale\\(")[1].split("\\)")[0].trim(); |
| scale = Float.parseFloat(scaleStr); |
| gElement.removeAttribute("transform"); |
| } else { |
| gElement.setAttribute("transform", "translate(0," + height + ")"); |
| } |
| } else { |
| Element svgElement = (Element) doc.getElementsByTagName("svg").item(0); |
| svgElement.setAttribute("viewBox", "0 0 1000 " + height); |
| gElement = doc.createElement("g"); |
| gElement.setAttribute("transform", "translate(0," + height + ")"); |
| NodeList paths = doc.getElementsByTagName("path"); |
| for (int i = 0; i < paths.getLength(); i++) { |
| Node path = paths.item(i); |
| if (i == 0) { |
| path.getParentNode().insertBefore(gElement, path); |
| } |
| gElement.appendChild(path); |
| } |
| } |
| Transformer transformer = TransformerFactory.newInstance().newTransformer(); |
| StreamResult result = new StreamResult(new StringWriter()); |
| DOMSource source = new DOMSource(doc); |
| transformer.transform(source, result); |
| return result.getWriter().toString(); |
| } |
| } |