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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 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.svek;

import net.sourceforge.plantuml.klimt.UStroke;
import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.color.HColors;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.shape.ULine;
import net.sourceforge.plantuml.klimt.shape.URectangle;

public final class RoundedContainer {

	private final XDimension2D dim;
	private final double titleHeight;
	private final double attributeHeight;
	private final HColor borderColor;
	private final HColor backColor;
	private final HColor imgBackcolor;
	private final UStroke stroke;
	private final double rounded;
	private final double shadowing;

	public RoundedContainer(XDimension2D dim, double titleHeight, double attributeHeight, HColor borderColor,
			HColor backColor, HColor imgBackcolor, UStroke stroke, double rounded, double shadowing) {
		if (dim.getWidth() == 0)
			throw new IllegalArgumentException();

		this.rounded = rounded;
		this.dim = dim;
		this.imgBackcolor = imgBackcolor;
		this.titleHeight = titleHeight;
		this.borderColor = borderColor;
		this.backColor = backColor;
		this.attributeHeight = attributeHeight;
		this.stroke = stroke;
		this.shadowing = shadowing;
	}

	public void drawU(UGraphic ug) {
		ug = ug.apply(backColor.bg()).apply(borderColor).apply(stroke);
		final URectangle rect = URectangle.build(dim.getWidth(), dim.getHeight()).rounded(rounded);

		if (shadowing > 0) {
			rect.setDeltaShadow(shadowing);
			ug.apply(HColors.transparent().bg()).draw(rect);
			rect.setDeltaShadow(0);

		}
		final double headerHeight = titleHeight + attributeHeight;

		new RoundedNorth(dim.getWidth(), headerHeight, backColor, rounded).drawU(ug);
		new RoundedSouth(dim.getWidth(), dim.getHeight() - headerHeight, imgBackcolor, rounded)
				.drawU(ug.apply(UTranslate.dy(headerHeight)));

		ug.apply(HColors.transparent().bg()).draw(rect);

		if (headerHeight > 0)
			ug.apply(UTranslate.dy(headerHeight)).draw(ULine.hline(dim.getWidth()));

		if (attributeHeight > 0)
			ug.apply(UTranslate.dy(titleHeight)).draw(ULine.hline(dim.getWidth()));

	}
}