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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 2009-2024, 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/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.klimt.Fashion;
import net.sourceforge.plantuml.klimt.UStroke;
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.shape.AbstractTextBlock;
import net.sourceforge.plantuml.klimt.shape.TextBlock;
import net.sourceforge.plantuml.klimt.shape.UEllipse;
import net.sourceforge.plantuml.klimt.shape.UPolygon;

public class Control extends AbstractTextBlock implements TextBlock {

	private final double margin = 4;

	private final double radius = 12;
	private final Fashion symbolContext;

	public Control(Fashion symbolContext) {
		this.symbolContext = symbolContext;
	}

	public void drawU(UGraphic ug) {
		double x = 0;
		double y = 0;
		x += margin;
		y += margin;
		ug = symbolContext.apply(ug);
		final UEllipse circle = UEllipse.build(radius * 2, radius * 2);
		circle.setDeltaShadow(symbolContext.getDeltaShadow());
		ug.apply(new UTranslate(x, y)).draw(circle);
		ug = ug.apply(UStroke.simple());

		ug = ug.apply(symbolContext.getForeColor().bg());
		final UPolygon polygon = new UPolygon();
		polygon.addPoint(0, 0);
		final int xWing = 6;
		final int yAperture = 5;
		polygon.addPoint(xWing, -yAperture);
		final int xContact = 4;
		polygon.addPoint(xContact, 0);
		polygon.addPoint(xWing, yAperture);
		polygon.addPoint(0, 0);

		ug.apply(new UTranslate(x + radius - xContact, y)).draw(polygon);
	}

	public XDimension2D calculateDimension(StringBounder stringBounder) {
		return new XDimension2D(radius * 2 + 2 * margin, radius * 2 + 2 * margin);
	}

}