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PlantUML is a component that allows to quickly write diagrams from text.

There is a newer version: 1.2025.0

// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
package net.sourceforge.plantuml.wbs;

import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.geom.XLine2D;
import net.sourceforge.plantuml.klimt.geom.XPoint2D;
import net.sourceforge.plantuml.klimt.geom.XRectangle2D;
import net.sourceforge.plantuml.klimt.shape.UDrawable;
import net.sourceforge.plantuml.svek.extremity.ExtremityArrow;

class WBSLink implements UDrawable {

	private final WElement element1;
	private final WElement element2;
	private final HColor color;

	public WBSLink(WElement element1, WElement element2, HColor color) {
		this.element1 = element1;
		this.element2 = element2;
		this.color = color;
		if (color == null)
			throw new IllegalArgumentException();
	}

	public final WElement getElement1() {
		return element1;
	}

	public final WElement getElement2() {
		return element2;
	}

	public void drawU(UGraphic ug) {
		final WElement element1 = getElement1();
		final WElement element2 = getElement2();
		final UTranslate position1 = element1.getPosition();
		final UTranslate position2 = element2.getPosition();
		final XDimension2D dim1 = element1.getDimension();
		final XDimension2D dim2 = element2.getDimension();
		if (position1 != null && position2 != null) {

			final XRectangle2D rect1 = new XRectangle2D(position1.getDx(), position1.getDy(), dim1.getWidth(),
					dim1.getHeight());
			final XRectangle2D rect2 = new XRectangle2D(position2.getDx(), position2.getDy(), dim2.getWidth(),
					dim2.getHeight());

			XLine2D line = new XLine2D(rect1.getCenterX(), rect1.getCenterY(), rect2.getCenterX(), rect2.getCenterY());

			final XPoint2D c1 = rect1.intersect(line);
			final XPoint2D c2 = rect2.intersect(line);

			line = XLine2D.line(c1, c2);
			ug = ug.apply(color);
			line.drawU(ug);

			final double angle = line.getAngle();
			final ExtremityArrow arrow = new ExtremityArrow(c2, angle);
			arrow.drawU(ug);

		}

	}

}