net.sourceforge.plantuml.klimt.creole.atom.AtomMath Maven / Gradle / Ivy

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PlantUML is a component that allows to quickly write diagrams from text.
There is a newer version: 1.2024.8
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
 * |
 * |      PlantUML : a free UML diagram generator
 * |
 * +=======================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
 *
 * If you like this project or if you find it useful, you can support us at:
 *
 * https://plantuml.com/patreon (only 1$ per month!)
 * https://plantuml.com/liberapay (only 1€ per month!)
 * https://plantuml.com/paypal
 *
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * PlantUML 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 Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see .
 *
 * PlantUML can occasionally display sponsored or advertising messages. Those
 * messages are usually generated on welcome or error images and never on
 * functional diagrams.
 * See https://plantuml.com/professional if you want to remove them
 *
 * Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
 * are owned by the author of their corresponding sources code (that is, their
 * textual description in PlantUML language). Those images are not covered by
 * this LGPL license.
 *
 * The generated images can then be used without any reference to the LGPL license.
 * It is not even necessary to stipulate that they have been generated with PlantUML,
 * although this will be appreciated by the PlantUML team.
 *
 * There is an exception : if the textual description in PlantUML language is also covered
 * by any license, then the generated images are logically covered
 * by the very same license.
 *
 * This is the IGY distribution (Install GraphViz by Yourself).
 * You have to install GraphViz and to setup the GRAPHVIZ_DOT environment variable
 * (see https://plantuml.com/graphviz-dot )
 *
 * Icons provided by OpenIconic :  https://useiconic.com/open
 * Archimate sprites provided by Archi :  http://www.archimatetool.com
 * Stdlib AWS provided by https://github.com/milo-minderbinder/AWS-PlantUML
 * Stdlib Icons provided https://github.com/tupadr3/plantuml-icon-font-sprites
 * ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
 * ASCIIMathML (c) David Lippman http://www.pierce.ctc.edu/dlippman
 * CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
 * Brotli (c) by the Brotli Authors https://github.com/google/brotli
 * Themes (c) by Brett Schwarz https://github.com/bschwarz/puml-themes
 * Twemoji (c) by Twitter at https://twemoji.twitter.com/
 *
 */
package net.sourceforge.plantuml.klimt.creole.atom;

import java.awt.Color;
import java.awt.image.BufferedImage;

import net.sourceforge.plantuml.klimt.color.ColorMapper;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.color.HColorSimple;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.shape.UImage;
import net.sourceforge.plantuml.klimt.shape.UImageSvg;
import net.sourceforge.plantuml.math.ScientificEquationSafe;

public class AtomMath extends AbstractAtom implements Atom {
	// ::remove file when __CORE__

	private final ScientificEquationSafe math;
	private final HColor foreground;
	private final HColor background;

	public AtomMath(ScientificEquationSafe math, HColor foreground, HColor background) {
		this.math = math;
		this.foreground = foreground;
		this.background = background;
	}

	private XDimension2D calculateDimensionSlow(StringBounder stringBounder) {
		final BufferedImage image = math.getImage(Color.BLACK, Color.WHITE).withScale(1).getImage();
		return new XDimension2D(image.getWidth(), image.getHeight());
	}

	private XDimension2D dim;

	public XDimension2D calculateDimension(StringBounder stringBounder) {
		if (dim == null) {
			dim = calculateDimensionSlow(stringBounder);
		}
		return dim;
	}

	public double getStartingAltitude(StringBounder stringBounder) {
		return 0;
	}

	public void drawU(UGraphic ug) {
		final ColorMapper colorMapper = ug.getColorMapper();
		final boolean isSvg = ug.matchesProperty("SVG");
		final Color back;
		if (background == null)
			back = null;
		else
			back = getColor(colorMapper, background, Color.WHITE);

		final Color fore = getColor(colorMapper, foreground, Color.BLACK);
		// final double dpiFactor = ug.dpiFactor();
		if (isSvg) {
			final UImageSvg svg = math.getSvg(1, fore, back);
			ug.draw(svg);
		} else {
			final UImage image = new UImage(math.getImage(fore, back)).withFormula(math.getFormula());
			ug.draw(image);
		}
	}

	private Color getColor(ColorMapper colorMapper, HColor color, Color defaultValue) {
		if (color instanceof HColorSimple)
			return color.toColor(colorMapper);

		return defaultValue;

	}
}