mirror of https://github.com/octoleo/plantuml.git
114 lines
3.7 KiB
Java
114 lines
3.7 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2017, Arnaud Roques
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*
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* Project Info: http://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* http://plantuml.com/patreon (only 1$ per month!)
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* http://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*
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*/
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package net.sourceforge.plantuml.math;
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import java.awt.Color;
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import java.awt.geom.Dimension2D;
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import java.awt.image.BufferedImage;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.lang.reflect.InvocationTargetException;
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import javax.script.Invocable;
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import javax.script.ScriptEngine;
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import javax.script.ScriptEngineManager;
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import javax.script.ScriptException;
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import net.sourceforge.plantuml.BackSlash;
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import net.sourceforge.plantuml.SvgString;
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public class AsciiMath implements ScientificEquation {
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private static final String ASCIIMATH_PARSER_JS_LOCATION = "/net/sourceforge/plantuml/math/";
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private static String JAVASCRIPT_CODE;
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private final LatexBuilder builder;
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private final String tex;
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static {
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try {
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final BufferedReader br = new BufferedReader(new InputStreamReader(
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AsciiMath.class.getResourceAsStream(ASCIIMATH_PARSER_JS_LOCATION + "ASCIIMathTeXImg.js"), "UTF-8"));
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final StringBuilder sb = new StringBuilder();
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String s = null;
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while ((s = br.readLine()) != null) {
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sb.append(s);
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sb.append(BackSlash.NEWLINE);
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}
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br.close();
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JAVASCRIPT_CODE = sb.toString();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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public AsciiMath(String form) throws ScriptException, NoSuchMethodException {
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final ScriptEngine engine = new ScriptEngineManager().getEngineByName("JavaScript");
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engine.eval(JAVASCRIPT_CODE);
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final Invocable inv = (Invocable) engine;
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this.tex = patchColor((String) inv.invokeFunction("plantuml", form));
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this.builder = new LatexBuilder(tex);
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}
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private String patchColor(String latex) {
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return latex.replace("\\color{", "\\textcolor{");
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}
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public Dimension2D getDimension() {
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return builder.getDimension();
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}
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public SvgString getSvg(double scale, Color foregroundColor, Color backgroundColor) throws ClassNotFoundException,
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IllegalAccessException, IllegalArgumentException, InvocationTargetException, NoSuchMethodException,
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SecurityException, InstantiationException, IOException {
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return builder.getSvg(scale, foregroundColor, backgroundColor);
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}
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public BufferedImage getImage(double scale, Color foregroundColor, Color backgroundColor)
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throws ClassNotFoundException, NoSuchMethodException, SecurityException, InstantiationException,
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IllegalAccessException, IllegalArgumentException, InvocationTargetException {
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return builder.getImage(scale, foregroundColor, backgroundColor);
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}
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public String getSource() {
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return tex;
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}
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}
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