net.sourceforge.plantuml.svek.extremity.ExtremityArrow Maven / Gradle / Ivy
/* ========================================================================
* PlantUML : a free UML diagram generator
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* (C) Copyright 2009-2023, Arnaud Roques
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* Original Author: Arnaud Roques
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package net.sourceforge.plantuml.svek.extremity;
import net.sourceforge.plantuml.awt.geom.XPoint2D;
import net.sourceforge.plantuml.ugraphic.UGraphic;
import net.sourceforge.plantuml.ugraphic.ULine;
import net.sourceforge.plantuml.ugraphic.UPolygon;
import net.sourceforge.plantuml.ugraphic.UTranslate;
import net.sourceforge.plantuml.ugraphic.color.HColor;
import net.sourceforge.plantuml.ugraphic.color.HColors;
class ExtremityArrow extends Extremity {
private UPolygon polygon = new UPolygon();
private final ULine line;
private final XPoint2D contact;
@Override
public XPoint2D somePoint() {
return contact;
}
public ExtremityArrow(XPoint2D p1, double angle, XPoint2D center) {
angle = manageround(angle);
final int xContact = buildPolygon();
polygon.rotate(angle + Math.PI / 2);
polygon = polygon.translate(p1.getX(), p1.getY());
contact = new XPoint2D(p1.getX() - xContact * Math.cos(angle + Math.PI / 2),
p1.getY() - xContact * Math.sin(angle + Math.PI / 2));
this.line = new ULine(center.getX() - contact.getX(), center.getY() - contact.getY());
}
public ExtremityArrow(XPoint2D p0, double angle) {
this.line = null;
angle = manageround(angle);
buildPolygon();
polygon.rotate(angle);
polygon = polygon.translate(p0.getX(), p0.getY());
contact = p0;
}
private int buildPolygon() {
polygon.addPoint(0, 0);
final int xWing = 9;
final int yAperture = 4;
polygon.addPoint(-xWing, -yAperture);
final int xContact = 5;
polygon.addPoint(-xContact, 0);
polygon.addPoint(-xWing, yAperture);
polygon.addPoint(0, 0);
return xContact;
}
public void drawU(UGraphic ug) {
final HColor color = ug.getParam().getColor();
if (color == null) {
ug = ug.apply(HColors.none().bg());
} else {
ug = ug.apply(color.bg());
}
ug.draw(polygon);
if (line != null && line.getLength() > 2) {
ug.apply(new UTranslate(contact)).draw(line);
}
}
}