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 lucee.runtime.PageContext;
022import lucee.runtime.exp.FunctionException;
023import lucee.runtime.exp.PageException;
024import lucee.runtime.img.Image;
025
026public class ImageCopy {
027
028        public static Object call(PageContext pc, Object name, double x, double y, double width, double height) throws PageException {
029                //if(name instanceof String) name=pc.getVariable(Caster.toString(name));
030                Image img = Image.toImage(pc,name);
031                
032                if (width < 0)
033                    throw new FunctionException(pc,"ImageCopy",3,"width","width must contain a none negative value");
034                if (height < 0)
035                    throw new FunctionException(pc,"ImageCopy",4,"height","width must contain a none negative value");
036                
037                return img.copy((float)x, (float)y, (float)width, (float)height);
038        }
039
040        public static Object call(PageContext pc, Object name, double x, double y, double width, double height,double dx) throws PageException {
041                throw new FunctionException(pc,"ImageCopy",7,"dy","when you define dx, you have also to define dy");
042        }
043
044        public static Object call(PageContext pc, Object name, double x, double y, double width, double height, double dx, double dy) throws PageException {
045                if(dx==-999 && dy==-999){// -999 == default value for named argument
046                        return call(pc, name, x, y, width, height);
047                }
048                if(dx==-999){// -999 == default value for named argument
049                        throw new FunctionException(pc,"ImageCopy",6,"dx","when you define dy, you have also to define dx");
050                }
051                if(dy==-999){// -999 == default value for named argument
052                        throw new FunctionException(pc,"ImageCopy",7,"dy","when you define dx, you have also to define dy");
053                }
054                
055                
056                //if(name instanceof String) name=pc.getVariable(Caster.toString(name));
057                Image img = Image.toImage(pc,name);
058                
059                if (width < 0)
060                    throw new FunctionException(pc,"ImageCopy",3,"width","width must contain a none negative value");
061                if (height < 0)
062                    throw new FunctionException(pc,"ImageCopy",4,"height","width must contain a none negative value");
063                
064                return img.copy((float)x, (float)y, (float)width, (float)height, (float)dx, (float)dy);
065                //return null;
066        }       
067}