001/**
002 *
003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
004 *
005 * This library is free software; you can redistribute it and/or
006 * modify it under the terms of the GNU Lesser General Public
007 * License as published by the Free Software Foundation; either 
008 * version 2.1 of the License, or (at your option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013 * Lesser General Public License for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public 
016 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
017 * 
018 **/
019package lucee.runtime.functions.image;
020
021import java.awt.RenderingHints;
022
023import lucee.runtime.PageContext;
024import lucee.runtime.exp.FunctionException;
025import lucee.runtime.exp.PageException;
026import lucee.runtime.img.Image;
027
028public class ImageTranslate {
029
030        public static String call(PageContext pc, Object name, double xTrans, double yTrans) throws PageException {
031                return call(pc, name, xTrans, yTrans,"nearest");
032        }
033        
034        public static String call(PageContext pc, Object name, double xTrans, double yTrans, String strInterpolation) throws PageException {
035                //if(name instanceof String) name=pc.getVariable(Caster.toString(name));
036                Image img = Image.toImage(pc,name);
037                
038                strInterpolation=strInterpolation.toLowerCase().trim();
039                Object interpolation = RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR;
040                
041                if("nearest".equals(strInterpolation))                  interpolation = RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR;
042                else if("bilinear".equals(strInterpolation))    interpolation = RenderingHints.VALUE_INTERPOLATION_BILINEAR;
043                else if("bicubic".equals(strInterpolation))     interpolation = RenderingHints.VALUE_INTERPOLATION_BICUBIC;
044                
045                else throw new FunctionException(pc,"ImageTranslate",4,"interpolation","invalid interpolation definition ["+strInterpolation+"], " +
046                                "valid interpolation values are [nearest,bilinear,bicubic]");
047                
048                img.translate((int)xTrans, (int)yTrans,interpolation);
049                return null;
050        }
051}