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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 General Public License V2.
 *
 * THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
 * LICENSE ("AGREEMENT"). [GNU General Public License V2]
 *
 * ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES
 * RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
 *
 * You may obtain a copy of the License at
 *
 * https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * 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 GPL v2 license.
 *
 * The generated images can then be used without any reference to the GPL v2 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.posimo;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;

import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.geom.XPoint2D;

public class Cluster implements Clusterable {

	private static int CPT = 1;

	private final Cluster parent;
	private final Collection blocs = new ArrayList<>();
	private final Collection children = new ArrayList<>();
	private final int uid = CPT++;
	private double x;
	private double y;
	private double width;
	private double height;

	private final double titleWidth;
	private final double titleHeight;

//	public Cluster(Cluster parent) {
//		this(parent, 100, 20);
//	}
//	
	public Cluster(Cluster parent, double titleWidth, double titleHeight) {
		this.parent = parent;
		this.titleWidth = titleWidth;
		this.titleHeight = titleHeight;
		if (parent != null) {
			parent.children.add(this);
		}
	}

	public Collection getSubClusters() {
		return Collections.unmodifiableCollection(children);
	}

	public Collection getRecursiveContents() {
		final Collection result = new ArrayList<>();
		addContentRecurse(result);
		return Collections.unmodifiableCollection(result);
	}

	private void addContentRecurse(Collection result) {
		result.addAll(blocs);
		for (Cluster c : children) {
			c.addContentRecurse(result);
		}

	}

	public int getUid() {
		return uid;
	}

	public void addBloc(Block b) {
		this.blocs.add(b);
	}

	public Cluster getParent() {
		return parent;
	}

	public Collection getContents() {
		return Collections.unmodifiableCollection(blocs);
	}

	public Block getBlock(int uid) {
		for (Block b : blocs) {
			if (b.getUid() == uid) {
				return b;
			}
		}
		for (Cluster sub : children) {
			final Block result = sub.getBlock(uid);
			if (result != null) {
				return result;
			}
		}
		return null;
	}

	public XPoint2D getPosition() {
		return new XPoint2D(x, y);
	}

	public XDimension2D getSize() {
		return new XDimension2D(width, height);
	}

	public final void setX(double x) {
		this.x = x;
	}

	public final void setY(double y) {
		this.y = y;
	}

	public final void setWidth(double width) {
		this.width = width;
	}

	public final void setHeight(double height) {
		this.height = height;
	}

	public final double getTitleWidth() {
		return titleWidth;
	}

	public final double getTitleHeight() {
		return titleHeight;
	}

	public void moveDelta(double deltaX, double deltaY) {
		throw new UnsupportedOperationException();
	}

}