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PlantUML is a component that allows to quickly write diagrams from text.

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// 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:
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 *
 * 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]
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 * ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES
 * RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
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 * You may obtain a copy of the License at
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 * https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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 * 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.svek.image;

import java.util.Collections;

import net.sourceforge.plantuml.abel.Entity;
import net.sourceforge.plantuml.klimt.UGroupType;
import net.sourceforge.plantuml.klimt.UStroke;
import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.creole.CreoleMode;
import net.sourceforge.plantuml.klimt.creole.Display;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.font.FontConfiguration;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.geom.HorizontalAlignment;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.shape.TextBlock;
import net.sourceforge.plantuml.klimt.shape.UEllipse;
import net.sourceforge.plantuml.klimt.shape.ULine;
import net.sourceforge.plantuml.stereo.Stereotype;
import net.sourceforge.plantuml.style.ISkinParam;

public class EntityImageState extends EntityImageStateCommon {

	final private TextBlock fields;

	final private static int MIN_WIDTH = 50;
	final private static int MIN_HEIGHT = 50;

	final private boolean withSymbol;

	final static private double smallRadius = 3;
	final static private double smallLine = 3;
	final static private double smallMarginX = 7;
	final static private double smallMarginY = 4;

	public EntityImageState(Entity entity, ISkinParam skinParam) {
		super(entity, skinParam);

		final Stereotype stereotype = entity.getStereotype();

		this.withSymbol = stereotype != null && stereotype.isWithOOSymbol();
		final Display list = Display.create(entity.getBodier().getRawBody());

		final FontConfiguration fieldsFontConfiguration = getStyleStateHeader()
				.getFontConfiguration(getSkinParam().getIHtmlColorSet());

		this.fields = list.create8(fieldsFontConfiguration, HorizontalAlignment.LEFT, skinParam, CreoleMode.FULL,
				getStyleState().wrapWidth());

	}

	public XDimension2D calculateDimension(StringBounder stringBounder) {
		final XDimension2D dim = title.calculateDimension(stringBounder)
				.mergeTB(fields.calculateDimension(stringBounder));
		double heightSymbol = 0;
		if (withSymbol)
			heightSymbol += 2 * smallRadius + smallMarginY;

		final XDimension2D result = dim.delta(MARGIN * 2 + 2 * MARGIN_LINE + heightSymbol);
		return result.atLeast(MIN_WIDTH, MIN_HEIGHT);
	}

	final public void drawU(UGraphic ug) {
		ug.startGroup(Collections.singletonMap(UGroupType.ID, getEntity().getQuark().toStringPoint()));
		if (url != null)
			ug.startUrl(url);

		final StringBounder stringBounder = ug.getStringBounder();
		final XDimension2D dimTotal = calculateDimension(stringBounder);
		final XDimension2D dimDesc = title.calculateDimension(stringBounder);

		final UStroke stroke = getStyleState().getStroke(lineConfig.getColors());

		ug = applyColor(ug);
		ug = ug.apply(stroke);
		ug.draw(getShape(dimTotal));

		final double yLine = MARGIN + dimDesc.getHeight() + MARGIN_LINE;
		ug.apply(UTranslate.dy(yLine)).draw(ULine.hline(dimTotal.getWidth()));

		if (withSymbol) {
			final double xSymbol = dimTotal.getWidth();
			final double ySymbol = dimTotal.getHeight();
			drawSymbol(ug, xSymbol, ySymbol);
		}

		final double xDesc = (dimTotal.getWidth() - dimDesc.getWidth()) / 2;
		final double yDesc = MARGIN;
		title.drawU(ug.apply(new UTranslate(xDesc, yDesc)));

		final double xFields = MARGIN;
		final double yFields = yLine + MARGIN_LINE;
		fields.drawU(ug.apply(new UTranslate(xFields, yFields)));

		if (url != null)
			ug.closeUrl();

		ug.closeGroup();
	}

	public static void drawSymbol(UGraphic ug, double xSymbol, double ySymbol) {
		xSymbol -= 4 * smallRadius + smallLine + smallMarginX;
		ySymbol -= 2 * smallRadius + smallMarginY;
		final UEllipse small = UEllipse.build(2 * smallRadius, 2 * smallRadius);
		ug.apply(new UTranslate(xSymbol, ySymbol)).draw(small);
		ug.apply(new UTranslate(xSymbol + smallLine + 2 * smallRadius, ySymbol)).draw(small);
		ug.apply(new UTranslate(xSymbol + 2 * smallRadius, ySymbol + smallLine)).draw(ULine.hline(smallLine));
	}

}




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