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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
 *
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 * 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
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 * 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
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 * 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.drawing;

import static net.sourceforge.plantuml.utils.ObjectUtils.instanceOfAny;

import net.sourceforge.plantuml.klimt.UBackground;
import net.sourceforge.plantuml.klimt.UChange;
import net.sourceforge.plantuml.klimt.UShape;
import net.sourceforge.plantuml.klimt.UStroke;
import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.geom.MinMaxMutable;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.shape.UText;

public class TextLimitFinder extends UGraphicNo {
    // ::remove file when __HAXE__

	private final MinMaxMutable minmax;

	@Override
	public UGraphic apply(UChange change) {
		if (!instanceOfAny(change, UBackground.class, HColor.class, UStroke.class, UTranslate.class))
			throw new UnsupportedOperationException(change.getClass().toString());
		final UTranslate tmp = change instanceof UTranslate ? this.getTranslate().compose((UTranslate) change)
				: this.getTranslate();
		return new TextLimitFinder(this.getStringBounder(), tmp, this.minmax);
	}

	public static TextLimitFinder create(StringBounder stringBounder, boolean initToZero) {
		return new TextLimitFinder(stringBounder, UTranslate.none(), MinMaxMutable.getEmpty(initToZero));
	}

	private TextLimitFinder(StringBounder stringBounder, UTranslate translate, MinMaxMutable minmax) {
		super(stringBounder, translate);
		this.minmax = minmax;
	}

	public void draw(UShape shape) {
		if (shape instanceof UText) {
			final double x = getTranslate().getDx();
			final double y = getTranslate().getDy();
			drawText(x, y, (UText) shape);
		}
	}

	private void drawText(double x, double y, UText text) {
		final XDimension2D dim = getStringBounder().calculateDimension(text.getFontConfiguration().getFont(),
				text.getText());
		y -= dim.getHeight() - 1.5;
		minmax.addPoint(x, y);
		minmax.addPoint(x, y + dim.getHeight());
		minmax.addPoint(x + dim.getWidth(), y);
		minmax.addPoint(x + dim.getWidth(), y + dim.getHeight());
	}

	public double getMaxX() {
		return minmax.getMaxX();
	}

	public double getMaxY() {
		return minmax.getMaxY();
	}

	public double getMinX() {
		return minmax.getMinX();
	}

	public double getMinY() {
		return minmax.getMinY();
	}

}