/* ========================================================================
 * 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.klimt.geom;

// ::comment when __HAXE__
import java.awt.geom.AffineTransform;
// ::done
import java.util.Arrays;

public class USegment {

	private final double coord[];
	private final USegmentType pathType;

	public USegment(double[] coord, USegmentType pathType) {
		this.coord = coord.clone();
		this.pathType = pathType;
	}

	// ::comment when __HAXE__
	@Override
	public String toString() {
		return pathType.toString() + " " + Arrays.toString(coord);
	}
	// ::done

	public final double[] getCoord() {
		return coord;
	}

	public final USegmentType getSegmentType() {
		return pathType;
	}

	public USegment translate(double dx, double dy) {

		if (pathType == USegmentType.SEG_ARCTO)
			return new USegment(
					new double[] { coord[0], coord[1], coord[2], coord[3], coord[4], coord[5] + dx, coord[6] + dy },
					pathType);

		if (pathType == USegmentType.SEG_CUBICTO) {
			return new USegment(new double[] { coord[0] + dx, coord[1] + dy, coord[2] + dx, coord[3] + dy,
					coord[4] + dx, coord[5] + dy }, pathType);
		}
		if (coord.length != 2)
			throw new UnsupportedOperationException();

		return new USegment(new double[] { coord[0] + dx, coord[1] + dy }, pathType);
	}

	// ::comment when __HAXE__
	public USegment rotate(double theta) {
		if (coord.length != 2)
			throw new UnsupportedOperationException();

		XPoint2D p1 = new XPoint2D(coord[0], coord[1]);
		final AffineTransform rotate = AffineTransform.getRotateInstance(theta);
		p1 = p1.transform(rotate);

		return new USegment(new double[] { p1.getX(), p1.getY() }, pathType);
	}

	public USegment affine(AffineTransform transform, double angle, double scale) {
		if (pathType == USegmentType.SEG_ARCTO) {
			XPoint2D p1 = new XPoint2D(coord[5], coord[6]);

			p1 = p1.transform(transform);

			final double large_arc_flag = coord[3];
			final double sweep_flag = coord[4];
			return new USegment(new double[] { coord[0] * scale, coord[1] * scale, coord[2] + angle, large_arc_flag,
					sweep_flag, p1.getX(), p1.getY() }, pathType);
		}

		if (coord.length != 2)
			throw new UnsupportedOperationException();
		XPoint2D p1 = new XPoint2D(coord[0], coord[1]);
		p1 = p1.transform(transform);

		return new USegment(new double[] { p1.getX(), p1.getY() }, pathType);
	}
	// ::done

}
