/*
* #%L
* org.gitools.ui.app
* %%
* Copyright (C) 2013 - 2014 Universitat Pompeu Fabra - Biomedical Genomics group
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/gpl-3.0.html>.
* #L%
*/
/* ===================================================
* JFreeSVG : an SVG library for the Java(tm) platform
* ===================================================
*
* (C)opyright 2013, 2014, by Object Refinery Limited. All rights reserved.
*
* Project Info: http://www.jfree.org/jfreesvg/index.html
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* If you do not wish to be bound by the terms of the AGPL, an alternative
* commercial license can be purchased. For details, please see visit the
* JFreeSVG home page:
*
* http://www.jfree.org/jfreesvg
*
*/
package org.gitools.ui.app.svg.jfreesvg;
import java.io.*;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Utility methods related to the {@link SVGGraphics2D} implementation.
*/
public class SVGUtils {
private SVGUtils() {
// no need to instantiate this
}
/**
* Returns a new string where any special characters in the source string
* have been encoded.
*
* @param source the source string (<code>null</code> not permitted).
*
* @return A new string with special characters escaped for XML.
*
* @since 1.5
*/
public static String escapeForXML(String source) {
Args.nullNotPermitted(source, "source");
StringBuilder sb = new StringBuilder();
for (int i = 0; i < source.length(); i++) {
char c = source.charAt(i);
switch (c) {
case '<' : {
sb.append("<");
break;
}
case '>' : {
sb.append(">");
break;
}
case '&' : {
String next = source.substring(i, Math.min(i + 6,
source.length()));
if (next.startsWith("<") || next.startsWith(">")
|| next.startsWith("&")
|| next.startsWith("'")
|| next.startsWith(""")) {
sb.append(c);
} else {
sb.append("&");
}
break;
}
case '\'' : {
sb.append("'");
break;
}
case '\"' : {
sb.append(""");
break;
}
default : sb.append(c);
}
}
return sb.toString();
}
/**
* Writes a file containing the SVG element.
*
* @param file the file (<code>null</code> not permitted).
* @param svgElement the SVG element (<code>null</code> not permitted).
*
* @throws IOException if there is an I/O problem.
*
* @since 1.2
*/
public static void writeToSVG(File file, String svgElement)
throws IOException {
BufferedWriter writer = null;
try {
FileOutputStream fos = new FileOutputStream(file);
OutputStreamWriter osw = new OutputStreamWriter(fos, "UTF-8");
writer = new BufferedWriter(osw);
writer.write("<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
writer.write(svgElement + "\n");
writer.flush();
} finally {
try {
if (writer != null) {
writer.close();
}
} catch (IOException ex) {
throw new RuntimeException(ex);
}
}
}
/**
* Writes an HTML file containing an SVG element.
*
* @param file the file.
* @param title the title.
* @param svgElement the SVG element.
*
* @throws IOException if there is an I/O problem.
*/
public static void writeToHTML(File file, String title, String svgElement)
throws IOException {
BufferedWriter writer = null;
try {
FileOutputStream fos = new FileOutputStream(file);
OutputStreamWriter osw = new OutputStreamWriter(fos, "UTF-8");
writer = new BufferedWriter(osw);
writer.write("<!DOCTYPE html>\n");
writer.write("<html>\n");
writer.write("<head>\n");
writer.write("<title>" + title + "</title>\n");
writer.write("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n");
writer.write("</head>\n");
writer.write("<body>\n");
writer.write(svgElement + "\n");
writer.write("</body>\n");
writer.write("</html>\n");
writer.flush();
} finally {
try {
if (writer != null) {
writer.close();
}
} catch (IOException ex) {
Logger.getLogger(SVGUtils.class.getName()).log(Level.SEVERE,
null, ex);
}
}
}
}