RotateAtom.java

/* RotateAtom.java
 * =========================================================================
 * This file is part of the JLaTeXMath Library - http://forge.scilab.org/jlatexmath
 *
 * Copyright (C) 2009 DENIZET Calixte
 *
 * This program 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 2 of the License, or (at
 * your option) any later version.
 *
 * This program is 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.
 *
 * A copy of the GNU General Public License can be found in the file
 * LICENSE.txt provided with the source distribution of this program (see
 * the META-INF directory in the source jar). This license can also be
 * found on the GNU website at http://www.gnu.org/licenses/gpl.html.
 *
 * If you did not receive a copy of the GNU General Public License along
 * with this program, contact the lead developer, or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 *
 * Linking this library statically or dynamically with other modules
 * is making a combined work based on this library. Thus, the terms
 * and conditions of the GNU General Public License cover the whole
 * combination.
 *
 * As a special exception, the copyright holders of this library give you
 * permission to link this library with independent modules to produce
 * an executable, regardless of the license terms of these independent
 * modules, and to copy and distribute the resulting executable under terms
 * of your choice, provided that you also meet, for each linked independent
 * module, the terms and conditions of the license of that module.
 * An independent module is a module which is not derived from or based
 * on this library. If you modify this library, you may extend this exception
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 *
 */

package org.scilab.forge.jlatexmath;

import java.util.Map;

/**
 * An atom representing a rotated Atom.
 */
public class RotateAtom extends Atom {

    private Atom base;
    private double angle;
    private int option = -1;
    private int xunit, yunit;
    private float x, y;

    public RotateAtom(Atom base, String angle, String option) {
        this.type = base.type;
        this.base = base;
        this.angle = Double.parseDouble(angle);
        this.option = RotateBox.getOrigin(option);
    }

    public RotateAtom(Atom base, double angle, String option) {
        this.type = base.type;
        this.base = base;
        this.angle = angle;
        Map<String, String> map = ParseOption.parseMap(option);
        if (map.containsKey("origin")) {
            this.option = RotateBox.getOrigin(map.get("origin"));
        } else {
            if (map.containsKey("x")) {
                float[] xinfo = SpaceAtom.getLength(map.get("x"));
                this.xunit = (int) xinfo[0];
                this.x = xinfo[1];
            } else {
                this.xunit = TeXConstants.UNIT_POINT;
                this.x = 0;
            }
            if (map.containsKey("y")) {
                float[] yinfo = SpaceAtom.getLength(map.get("y"));
                this.yunit = (int) yinfo[0];
                this.y = yinfo[1];
            } else {
                this.yunit = TeXConstants.UNIT_POINT;
                this.y = 0;
            }
        }
    }

    public Box createBox(TeXEnvironment env) {
        if (option != -1) {
            return new RotateBox(base.createBox(env), angle, option);
        } else {
            return new RotateBox(base.createBox(env), angle, x * SpaceAtom.getFactor(xunit, env), y * SpaceAtom.getFactor(yunit, env));
        }
    }
}