/* ScaleBox.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
* to your version of the library, but you are not obliged to do so.
* If you do not wish to do so, delete this exception statement from your
* version.
*
*/
package com.himamis.retex.renderer.share;
import com.himamis.retex.renderer.share.platform.graphics.Graphics2DInterface;
/**
* A box representing a scaled box.
*/
public class ScaleBox extends Box {
private Box box;
private double xscl, yscl;
public ScaleBox(Box b, double xscl, double yscl) {
this.box = b;
this.xscl = (Double.isNaN(xscl) || Double.isInfinite(xscl)) ? 0 : xscl;
this.yscl = (Double.isNaN(yscl) || Double.isInfinite(yscl)) ? 0 : yscl;
width = b.width * Math.abs(this.xscl);
height = this.yscl > 0 ? b.height * this.yscl : -b.depth * this.yscl;
depth = this.yscl > 0 ? b.depth * this.yscl : -b.height * this.yscl;
shift = b.shift * this.yscl;
}
public ScaleBox(Box b, double factor) {
this(b, factor, factor);
}
@Override
public void draw(Graphics2DInterface g2, double x, double y) {
drawDebug(g2, x, y);
if (xscl != 0 && yscl != 0) {
double dec = xscl < 0 ? width : 0;
g2.translate(x + dec, y);
g2.scale(xscl, yscl);
box.draw(g2, 0, 0);
g2.scale(1 / xscl, 1 / yscl);
g2.translate(-x - dec, -y);
}
}
@Override
public int getLastFontId() {
return box.getLastFontId();
}
}