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/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2020, 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.extremity;
import java.awt.geom.AffineTransform;
import java.awt.geom.Point2D;
import net.sourceforge.plantuml.ugraphic.UGraphic;
import net.sourceforge.plantuml.ugraphic.ULine;
import net.sourceforge.plantuml.ugraphic.UTranslate;
class ExtremityLineCrowfoot extends Extremity {
private final Point2D contact;
private final double angle;
private final double lineHeight = 4;
@Override
public Point2D somePoint() {
return contact;
}
public ExtremityLineCrowfoot(Point2D p1, double angle) {
this.contact = new Point2D.Double(p1.getX(), p1.getY());
this.angle = manageround(angle + Math.PI / 2);
}
public void drawU(UGraphic ug) {
final int xWing = 8;
final int yAperture = 6;
final AffineTransform rotate = AffineTransform.getRotateInstance(this.angle);
Point2D middle = new Point2D.Double(0, 0);
Point2D left = new Point2D.Double(0, -yAperture);
Point2D base = new Point2D.Double(-xWing, 0);
Point2D lineTop = new Point2D.Double(-xWing-2, -lineHeight);
Point2D lineBottom = new Point2D.Double(-xWing-2, lineHeight);
Point2D right = new Point2D.Double(0, yAperture);
rotate.transform(left, left);
rotate.transform(base, base);
rotate.transform(right, right);
rotate.transform(lineTop, lineTop);
rotate.transform(lineBottom, lineBottom);
drawLine(ug, contact.getX(), contact.getY(), base, left);
drawLine(ug, contact.getX(), contact.getY(), base, right);
drawLine(ug, contact.getX(), contact.getY(), base, middle);
drawLine(ug, contact.getX(), contact.getY(), lineTop, lineBottom);
}
static private void drawLine(UGraphic ug, double x, double y, Point2D p1, Point2D 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));
}
}
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