plantuml/src/net/sourceforge/plantuml/klimt/geom/MinMax.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
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 * Original Author:  Arnaud Roques
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 */
package net.sourceforge.plantuml.klimt.geom;

import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.color.HColors;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.shape.URectangle;

public class MinMax {

	private final double maxX;
	private final double maxY;
	private final double minX;
	private final double minY;

	public boolean doesHorizontalCross(XPoint2D pt1, XPoint2D pt2) {
		if (pt1.getY() != pt2.getY())
			throw new IllegalArgumentException();

		if (pt1.getX() == pt2.getX())
			throw new IllegalArgumentException();

		final double y = pt1.getY();
		if (y < minY || y > maxY)
			return false;

		if (pt1.getX() < minX && pt2.getX() > maxX)
			return true;

		if (pt2.getX() < minX && pt1.getX() > maxX)
			return true;

		return false;
	}

	public static MinMax getEmpty(boolean initToZero) {
		if (initToZero)
			return new MinMax(0, 0, 0, 0);

		return new MinMax(Double.MAX_VALUE, Double.MAX_VALUE, -Double.MAX_VALUE, -Double.MAX_VALUE);
	}

	@Override
	public String toString() {
		return "(" + minX + "," + minY + ")->(" + maxX + "," + maxY + ")";
	}

	public static MinMax fromMutable(MinMaxMutable minmax) {
		return new MinMax(minmax.getMinX(), minmax.getMinY(), minmax.getMaxX(), minmax.getMaxY());
	}

	private MinMax(double minX, double minY, double maxX, double maxY) {
		this.minX = minX;
		this.minY = minY;
		this.maxX = maxX;
		this.maxY = maxY;
		if (Double.isNaN(minX))
			throw new IllegalArgumentException();

		if (Double.isNaN(maxX))
			throw new IllegalArgumentException();

		if (Double.isNaN(minY))
			throw new IllegalArgumentException();

		if (Double.isNaN(maxY))
			throw new IllegalArgumentException();

	}

	public MinMax addPoint(XPoint2D pt) {
		return addPoint(pt.getX(), pt.getY());
	}

	public MinMax addPoint(double x, double y) {
		return new MinMax(Math.min(x, minX), Math.min(y, minY), Math.max(x, maxX), Math.max(y, maxY));
	}

	public MinMax addMinMax(MinMax other) {
		return new MinMax(Math.min(other.minX, minX), Math.min(other.minY, minY), Math.max(other.maxX, maxX),
				Math.max(other.maxY, maxY));
	}

	public static MinMax fromMax(double maxX, double maxY) {
		return MinMax.getEmpty(true).addPoint(maxX, maxY);
	}

	public static MinMax fromDim(XDimension2D dim) {
		return fromMax(dim.getWidth(), dim.getHeight());
	}

	public final double getMaxX() {
		return maxX;
	}

	public final double getMaxY() {
		return maxY;
	}

	public final double getMinX() {
		return minX;
	}

	public final double getMinY() {
		return minY;
	}

	public double getHeight() {
		return maxY - minY;
	}

	public double getWidth() {
		return maxX - minX;
	}

	public XDimension2D getDimension() {
		return new XDimension2D(maxX - minX, maxY - minY);
	}

	// ::comment when __HAXE__
	public void drawGray(UGraphic ug) {
		draw(ug, HColors.GRAY);
	}

	public void draw(UGraphic ug, HColor color) {
		ug = ug.apply(color).apply(color.bg());
		ug = ug.apply(new UTranslate(minX, minY));
		ug.draw(URectangle.build(getWidth(), getHeight()));
	}
	// ::done

	public MinMax translate(UTranslate translate) {
		final double dx = translate.getDx();
		final double dy = translate.getDy();
		return new MinMax(minX + dx, minY + dy, maxX + dx, maxY + dy);
	}

}