001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * For further information about Alkacon Software, please see the
018 * company website: http://www.alkacon.com
019 *
020 * For further information about OpenCms, please see the
021 * project website: http://www.opencms.org
022 *
023 * You should have received a copy of the GNU Lesser General Public
024 * License along with this library; if not, write to the Free Software
025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
026 */
027
028package org.opencms.ade.galleries.client.preview.util;
029
030import org.opencms.ade.galleries.shared.CmsPoint;
031
032/**
033 * Simple translation by x/y offset.<p>
034 */
035public class CmsTranslate implements I_CmsTransform {
036
037    /** The horizontal offset. */
038    private double m_cx;
039
040    /** The vertical offset. */
041    private double m_cy;
042
043    /**
044     * Creates a new instance.<p>
045     *
046     * @param cx the horizontal offset
047     * @param cy the vertical offset
048     */
049    public CmsTranslate(double cx, double cy) {
050
051        m_cx = cx;
052        m_cy = cy;
053    }
054
055    /**
056     * @see java.lang.Object#toString()
057     */
058    @Override
059    public String toString() {
060
061        return "[CmsTranslate " + m_cx + " " + m_cy + "]";
062
063    }
064
065    /**
066     * @see org.opencms.ade.galleries.client.preview.util.I_CmsTransform#transformBack(org.opencms.ade.galleries.shared.CmsPoint)
067     */
068    public CmsPoint transformBack(CmsPoint point) {
069
070        return new CmsPoint(point.getX() - m_cx, point.getY() - m_cy);
071    }
072
073    /**
074     * @see org.opencms.ade.galleries.client.preview.util.I_CmsTransform#transformForward(org.opencms.ade.galleries.shared.CmsPoint)
075     */
076    public CmsPoint transformForward(CmsPoint point) {
077
078        return new CmsPoint(point.getX() + m_cx, point.getY() + m_cy);
079    }
080
081}