mirror of https://github.com/octoleo/plantuml.git
149 lines
4.4 KiB
Java
149 lines
4.4 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 2009-2023, 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.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.io.IOException;
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import java.lang.reflect.InvocationTargetException;
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import javax.swing.Icon;
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import net.sourceforge.plantuml.awt.geom.XDimension2D;
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import net.sourceforge.plantuml.ugraphic.MutableImage;
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import net.sourceforge.plantuml.ugraphic.UImageSvg;
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public class LatexBuilder implements ScientificEquation {
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private final String tex;
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public LatexBuilder(String tex) {
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this.tex = tex;
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}
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private XDimension2D dimension;
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public XDimension2D getDimension() {
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return dimension;
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}
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private Icon buildIcon(Color foregroundColor)
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throws ClassNotFoundException, NoSuchMethodException, SecurityException, InstantiationException,
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IllegalAccessException, IllegalArgumentException, InvocationTargetException {
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return new TeXIconBuilder(tex, foregroundColor).getIcon();
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}
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public UImageSvg getSvg(double scale, Color foregroundColor, Color backgroundColor)
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throws ClassNotFoundException, IllegalAccessException, IllegalArgumentException, InvocationTargetException,
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NoSuchMethodException, SecurityException, InstantiationException, IOException {
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final Icon icon = buildIcon(foregroundColor);
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final ConverterSvg converterSvg = new ConverterSvg(icon);
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final String svg = converterSvg.getSvg(scale, true, backgroundColor);
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dimension = converterSvg.getDimension();
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return new UImageSvg(svg, scale);
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}
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public MutableImage getImage(Color foregroundColor, Color backgroundColor)
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throws ClassNotFoundException, NoSuchMethodException, SecurityException, InstantiationException,
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IllegalAccessException, IllegalArgumentException, InvocationTargetException {
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final Icon icon = buildIcon(foregroundColor);
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return new LatexImage(icon, 1, foregroundColor, backgroundColor);
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}
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class LatexImage implements MutableImage {
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private final double scale;
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private final Icon icon;
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private final Color foregroundColor;
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private final Color backgroundColor;
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private BufferedImage cache = null;
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public LatexImage(Icon icon, double scale, Color foregroundColor, Color backgroundColor) {
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this.scale = scale;
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this.foregroundColor = foregroundColor;
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this.backgroundColor = backgroundColor;
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this.icon = icon;
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}
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@Override
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public BufferedImage getImage() {
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if (cache == null) {
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cache = new BufferedImage((int) (icon.getIconWidth() * scale), (int) (icon.getIconHeight() * scale),
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BufferedImage.TYPE_INT_ARGB);
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final Graphics2D g2 = cache.createGraphics();
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g2.scale(scale, scale);
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if (backgroundColor != null) {
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g2.setColor(backgroundColor);
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g2.fillRect(0, 0, icon.getIconWidth(), icon.getIconHeight());
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}
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icon.paintIcon(null, g2, 0, 0);
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}
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return cache;
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}
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public MutableImage withScale(double scale) {
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return new LatexImage(icon, this.scale * scale, foregroundColor, backgroundColor);
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}
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@Override
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public MutableImage muteColor(Color newColor) {
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return this;
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}
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@Override
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public MutableImage muteTransparentColor(Color newColor) {
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return this;
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}
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@Override
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public MutableImage monochrome() {
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return this;
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}
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@Override
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public double getScale() {
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return scale;
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}
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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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