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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.salt.element;

import net.sourceforge.plantuml.klimt.UTranslate;
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.geom.XPoint2D;
import net.sourceforge.plantuml.utils.MathUtils;

public class ElementBorder extends AbstractElement {

	private Element north = new ElementEmpty();
	private Element south = new ElementEmpty();
	private Element east = new ElementEmpty();
	private Element west = new ElementEmpty();
	private Element center = new ElementEmpty();

	public final void setNorth(Element north) {
		this.north = north;
	}

	public final void setSouth(Element south) {
		this.south = south;
	}

	public final void setEast(Element east) {
		this.east = east;
	}

	public final void setWest(Element west) {
		this.west = west;
	}

	public final void setCenter(Element center) {
		this.center = center;
	}

	public void drawU(UGraphic ug, int zIndex, XDimension2D dimToUse) {
		final StringBounder stringBounder = ug.getStringBounder();
		final XDimension2D dimNorth = north.getPreferredDimension(stringBounder, 0, 0);
		final XDimension2D dimSouth = south.getPreferredDimension(stringBounder, 0, 0);
		final XDimension2D dimEast = east.getPreferredDimension(stringBounder, 0, 0);
		final XDimension2D dimWest = west.getPreferredDimension(stringBounder, 0, 0);
		final XPoint2D pA = new XPoint2D(dimWest.getWidth(), dimNorth.getHeight());
		final XPoint2D pB = new XPoint2D(dimToUse.getWidth() - dimEast.getWidth(), dimNorth.getHeight());
		final XPoint2D pC = new XPoint2D(dimWest.getWidth(), dimToUse.getHeight() - dimSouth.getHeight());
		// final XPoint2D pD = new XPoint2D(dimToUse.getWidth() - dimEast.getWidth(),
		// dimToUse.getHeight()
		// - dimSouth.getHeight());

		north.drawU(ug, zIndex, dimToUse);
		south.drawU(ug.apply(UTranslate.dy(pC.getY())), zIndex, dimToUse);
		west.drawU(ug.apply(UTranslate.dy(pA.getY())), zIndex, dimToUse);
		east.drawU(ug.apply(new UTranslate(pB.getX(), pB.getY())), zIndex, dimToUse);
		center.drawU(ug.apply(new UTranslate(pA.getX(), pA.getY())), zIndex, dimToUse);
	}

	public XDimension2D getPreferredDimension(StringBounder stringBounder, double x, double y) {
		final XDimension2D dimNorth = north.getPreferredDimension(stringBounder, x, y);
		final XDimension2D dimSouth = south.getPreferredDimension(stringBounder, x, y);
		final XDimension2D dimEast = east.getPreferredDimension(stringBounder, x, y);
		final XDimension2D dimWest = west.getPreferredDimension(stringBounder, x, y);
		final XDimension2D dimCenter = center.getPreferredDimension(stringBounder, x, y);
		final double width = MathUtils.max(dimNorth.getWidth(), dimSouth.getWidth(),
				dimWest.getWidth() + dimCenter.getWidth() + dimEast.getWidth());
		final double height = dimNorth.getHeight()
				+ MathUtils.max(dimWest.getHeight(), dimCenter.getHeight(), dimEast.getHeight()) + dimSouth.getHeight();
		return new XDimension2D(width, height);
	}

}