net.sourceforge.plantuml.activitydiagram3.ftile.Hexagon 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.activitydiagram3.ftile;

import net.sourceforge.plantuml.klimt.creole.Stencil;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.shape.TextBlock;
import net.sourceforge.plantuml.klimt.shape.UPolygon;

public class Hexagon {

	final static public double hexagonHalfSize = 12;

	public static UPolygon asPolygon(double shadowing) {
		final UPolygon diams = new UPolygon();

		diams.addPoint(hexagonHalfSize, 0);
		diams.addPoint(hexagonHalfSize * 2, hexagonHalfSize);
		diams.addPoint(hexagonHalfSize, hexagonHalfSize * 2);
		diams.addPoint(0, hexagonHalfSize);
		diams.addPoint(hexagonHalfSize, 0);

		// if (shadowing) {
		// diams.setDeltaShadow(3);
		// }
		diams.setDeltaShadow(shadowing);

		return diams;
	}

	public static UPolygon asPolygon(double shadowing, double width, double height) {
		final UPolygon diams = new UPolygon();

		diams.addPoint(hexagonHalfSize, 0);
		diams.addPoint(width - hexagonHalfSize, 0);
		diams.addPoint(width, height / 2);
		diams.addPoint(width - hexagonHalfSize, height);
		diams.addPoint(hexagonHalfSize, height);
		diams.addPoint(0, height / 2);
		diams.addPoint(hexagonHalfSize, 0);

		// if (shadowing) {
		// diams.setDeltaShadow(3);
		// }
		diams.setDeltaShadow(shadowing);

		return diams;
	}

	public static Stencil asStencil(final TextBlock tb) {
		return new Stencil() {

			private final double getDeltaX(double height, double y) {
				final double p = y / height * 2;
				if (p <= 1) {
					return hexagonHalfSize * p;
				}
				return hexagonHalfSize * (2 - p);
			}

			public double getStartingX(StringBounder stringBounder, double y) {
				final XDimension2D dim = tb.calculateDimension(stringBounder);
				return -getDeltaX(dim.getHeight(), y);
			}

			public double getEndingX(StringBounder stringBounder, double y) {
				final XDimension2D dim = tb.calculateDimension(stringBounder);
				return dim.getWidth() + getDeltaX(dim.getHeight(), y);
			}
		};
	}

	public static UPolygon asPolygonSquare(double shadowing, double width, double height) {
		final UPolygon diams = new UPolygon();

		diams.addPoint(width / 2, 0);
		diams.addPoint(width, height / 2);
		diams.addPoint(width / 2, height);
		diams.addPoint(0, height / 2);

		diams.setDeltaShadow(shadowing);

		return diams;
	}

}