de.thischwa.pmcms.tool.XY.java Source code

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Here is the source code for de.thischwa.pmcms.tool.XY.java

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/*******************************************************************************
 * Poor Man's CMS (pmcms) - A very basic CMS generating static html pages.
 * http://poormans.sourceforge.net
 * Copyright (C) 2004-2013 by Thilo Schwarz
 * 
 * == BEGIN LICENSE ==
 * 
 * Licensed under the terms of any of the following licenses at your
 * choice:
 * 
 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 *    http://www.gnu.org/licenses/lgpl.html
 * 
 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 *    http://www.mozilla.org/MPL/MPL-1.1.html
 * 
 * == END LICENSE ==
 ******************************************************************************/
package de.thischwa.pmcms.tool;

import java.awt.Point;

import org.apache.commons.lang.StringUtils;

/**
 * Helper for managing xy-coordinates.
 *
 * @author Thilo Schwarz
 */
public class XY extends Point {
    private static final long serialVersionUID = 1L;

    public XY(int x, int y) {
        setLocation(x, y);
    }

    public XY(Point p) {
        this(p.x, p.y);
    }

    public XY(int[] xy) {
        if (xy.length != 2)
            throw new IllegalArgumentException("xy array has the wrong size!");
        setLocation(xy[0], xy[1]);
    }

    /**
     * Constructor to interpret to comma-separated values, e.g.: <code>1,2</code>
     * 
     * @param str
     */
    public XY(final String str) {
        if (StringUtils.isEmpty(str))
            return;
        String tmp = StringUtils.strip(str);
        String values[] = StringUtils.split(tmp, ",");
        if (values.length != 2 && !(StringUtils.isNumeric(values[0]) && StringUtils.isNumeric(values[1])))
            throw new IllegalArgumentException("Can't interpret coordinate string!");
        setLocation(Integer.parseInt(values[0].trim()), Integer.parseInt(values[1].trim()));
    }

    public int[] toArray() {
        return new int[] { x, y };
    }

    @Override
    public String toString() {
        return String.format("%s,%s", x, y);
    }

    @Override
    public boolean equals(Object obj) {
        if (!(obj instanceof XY))
            return false;
        XY xyObj = (XY) obj;
        return (x == xyObj.x && y == xyObj.y);
    }
}