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PlantUML is a component that allows to quickly write : * sequence diagram, * use case diagram, * class diagram, * activity diagram, * component diagram, * state diagram * object diagram

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/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2023, Arnaud Roques
 *
 * Project Info:  http://plantuml.com
 * 
 * If you like this project or if you find it useful, you can support us at:
 * 
 * http://plantuml.com/patreon (only 1$ per month!)
 * http://plantuml.com/paypal
 * 
 * This file is part of PlantUML.
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU 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 General Public
 * License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 *
 * Original Author:  Arnaud Roques
 * 
 *
 */
package net.sourceforge.plantuml.svek;

import net.sourceforge.plantuml.awt.geom.Dimension2D;
import net.sourceforge.plantuml.ugraphic.UGraphic;
import net.sourceforge.plantuml.ugraphic.ULine;
import net.sourceforge.plantuml.ugraphic.UPath;
import net.sourceforge.plantuml.ugraphic.URectangle;
import net.sourceforge.plantuml.ugraphic.UShape;
import net.sourceforge.plantuml.ugraphic.UStroke;
import net.sourceforge.plantuml.ugraphic.UTranslate;
import net.sourceforge.plantuml.ugraphic.color.HColor;
import net.sourceforge.plantuml.ugraphic.color.HColorUtils;

public final class RoundedContainer {

	private final Dimension2D 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(Dimension2D 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 = new URectangle(dim.getWidth(), dim.getHeight()).rounded(rounded);

		if (shadowing > 0) {
			rect.setDeltaShadow(shadowing);
			ug.apply(HColorUtils.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(HColorUtils.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()));

	}
}