net.sourceforge.plantuml.svek.extremity.ExtremityDoubleLine Maven / Gradle / Ivy

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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
 * |
 * +=======================================================================
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 * (C) Copyright 2009-2024, Arnaud Roques
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 * Project Info:  https://plantuml.com
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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.
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 * THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
 * LICENSE ("AGREEMENT"). [GNU General Public License V2]
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 * RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
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 *
 * https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * See the License for the specific language governing permissions and
 * limitations under the License.
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 * 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
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 * Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
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 * This is the IGY distribution (Install GraphViz by Yourself).
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 * Icons provided by OpenIconic :  https://useiconic.com/open
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 * 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
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 *
 */
package net.sourceforge.plantuml.svek.extremity;

import java.awt.geom.AffineTransform;

import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.geom.XPoint2D;
import net.sourceforge.plantuml.klimt.shape.ULine;

class ExtremityDoubleLine extends Extremity {

	private final XPoint2D contact;
	private final double angle;
	private final double lineHeight = 4;

	@Override
	public XPoint2D somePoint() {
		return contact;
	}

	public ExtremityDoubleLine(XPoint2D p1, double angle) {
		this.contact = new XPoint2D(p1.getX(), p1.getY());
		this.angle = manageround(angle + Math.PI / 2);
	}

	public void drawU(UGraphic ug) {
		final int xWing = 4;
		final AffineTransform rotate = AffineTransform.getRotateInstance(this.angle);
		XPoint2D firstLineTop = new XPoint2D(-xWing, -lineHeight);
		XPoint2D firstLineBottom = new XPoint2D(-xWing, lineHeight);
		XPoint2D secondLineTop = new XPoint2D(-xWing - 3, -lineHeight);
		XPoint2D secondLineBottom = new XPoint2D(-xWing - 3, lineHeight);

		XPoint2D middle = new XPoint2D(0, 0);
		XPoint2D base = new XPoint2D(-xWing - 4, 0);

		middle = middle.transform(rotate);
		base = base.transform(rotate);
		firstLineTop = firstLineTop.transform(rotate);
		firstLineBottom = firstLineBottom.transform(rotate);
		secondLineTop = secondLineTop.transform(rotate);
		secondLineBottom = secondLineBottom.transform(rotate);

		drawLine(ug, contact.getX(), contact.getY(), firstLineTop, firstLineBottom);
		drawLine(ug, contact.getX(), contact.getY(), secondLineTop, secondLineBottom);
		drawLine(ug, contact.getX(), contact.getY(), base, middle);
	}
	
	@Override
	public double getDecorationLength() {
		return 8;
	}

	static private void drawLine(UGraphic ug, double x, double y, XPoint2D p1, XPoint2D p2) {
		final double dx = p2.getX() - p1.getX();
		final double dy = p2.getY() - p1.getY();
		ug.apply(new UTranslate(x + p1.getX(), y + p1.getY())).draw(new ULine(dx, dy));
	}

}