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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!)
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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
 *
 * 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.ebnf;

import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.color.HColors;
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.URectangle;

public class ETileZeroOrMore extends ETile {

	private final double deltax;
	private final double deltay = 20;
	private final ETile orig;
	private final boolean specialForAlternate;

	public ETileZeroOrMore(ETile orig) {
		this.orig = orig;
		this.specialForAlternate = orig instanceof ETileAlternation;
		this.deltax = this.specialForAlternate ? 0 : 20;
		if (this.specialForAlternate)
			((ETileAlternation) orig).setInZeroOrMore(true);
	}

	@Override
	public double getH1(StringBounder stringBounder) {
		return 10;
	}

	@Override
	public double getH2(StringBounder stringBounder) {
		return 10 + orig.getH1(stringBounder) + orig.getH2(stringBounder);
	}

	@Override
	public double getWidth(StringBounder stringBounder) {
		return orig.getWidth(stringBounder) + 2 * deltax;
	}

	@Override
	public void drawU(UGraphic ug) {
		final StringBounder stringBounder = ug.getStringBounder();
		final XDimension2D fullDim = calculateDimension(stringBounder);
		if (TRACE) {
			if (specialForAlternate)
				ug.apply(HColors.COL_B38D22).draw(URectangle.build(fullDim));
			else
				ug.apply(HColors.GREEN).draw(URectangle.build(fullDim));
		}

		final double linePos = getH1(stringBounder);

		drawHline(ug, linePos, 0, fullDim.getWidth());
		final double corner = 12;

		if (specialForAlternate) {
			CornerCurved.createNE_arrow(corner).drawU(ug.apply(new UTranslate(corner, linePos)));
			CornerCurved.createNW(corner).drawU(ug.apply(new UTranslate(corner, linePos)));

			final double posB = fullDim.getWidth() - corner;
			CornerCurved.createNW_arrow(corner).drawU(ug.apply(new UTranslate(posB, linePos)));
			CornerCurved.createNE(corner).drawU(ug.apply(new UTranslate(posB, linePos)));

		} else {

			CornerCurved.createNE_arrow(corner).drawU(ug.apply(new UTranslate(deltax - corner, linePos)));
			CornerCurved.createNW(corner).drawU(ug.apply(new UTranslate(deltax - corner, linePos)));
			drawVline(ug, deltax - corner, linePos + corner, deltay + orig.getH1(stringBounder) - corner);
			CornerCurved.createSW(corner)
					.drawU(ug.apply(new UTranslate(deltax - corner, deltay + orig.getH1(stringBounder))));

			final double posB = fullDim.getWidth() - deltax + corner;
			CornerCurved.createSE(corner).drawU(ug.apply(new UTranslate(posB, deltay + orig.getH1(stringBounder))));
			drawVline(ug, posB, linePos + corner, deltay + orig.getH1(stringBounder) - corner);
			CornerCurved.createNW_arrow(corner).drawU(ug.apply(new UTranslate(posB, linePos)));
			CornerCurved.createNE(corner).drawU(ug.apply(new UTranslate(posB, linePos)));
		}

		orig.drawU(ug.apply(new UTranslate(deltax, deltay)));
	}

	@Override
	public void push(ETile tile) {
		throw new UnsupportedOperationException();
	}

}