001    /*
002      Copyright (C) 2003 Laurent Martelli <laurent@aopsys.com>
003    
004      This program is free software; you can redistribute it and/or modify
005      it under the terms of the GNU Lesser General Public License as
006      published by the Free Software Foundation; either version 2 of the
007      License, or (at your option) any later version.
008    
009      This program is distributed in the hope that it will be useful,
010      but WITHOUT ANY WARRANTY; without even the implied warranty of
011      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
012      GNU Lesser General Public License for more details.
013    
014      You should have received a copy of the GNU Lesser General Public License
015      along with this program; if not, write to the Free Software
016      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
017    
018    package org.objectweb.jac.aspects.gui;
019    
020    import java.text.DecimalFormat;
021    import java.text.ParsePosition;
022    import org.objectweb.jac.core.rtti.FieldItem;
023    import org.objectweb.jac.core.rtti.MetaItem;
024    import org.objectweb.jac.core.rtti.RttiAC;
025    
026    public class PercentFormat extends FloatFormat {
027        
028        public PercentFormat(FieldItem field) {
029            super(field);
030        }
031        
032        public String format(double value) {
033            String strValue = null;
034            Class type = field.getType();
035            double editedValue = value;
036            if (type == float.class || type == Float.class ||
037                type == double.class || type == Double.class)
038                editedValue *= 100;
039            return format.format(editedValue)+"%";
040        }
041    
042        public Number parseNumber(String str, ParsePosition pos) {
043            String string = ((String)str).trim();
044            
045            if (string==null || string.length()==0)
046                return null;
047            if (string.endsWith("%")) {
048                string = string.substring(0,string.length()-1).trim();
049            }
050    
051            Class type = field.getType();
052    
053            Number number = format.parse(string,pos);
054    
055            if (type == int.class || type == Integer.class) {
056                return new Integer(number.intValue());
057            } else if (type == short.class || type == Short.class) {
058                return new Short(number.shortValue());
059            } else if (type == long.class || type == Long.class) {
060                return new Long(number.longValue());
061            } else if (type == float.class || type == Float.class) {
062                return new Float(number.floatValue()/100);
063            } else if (type == double.class || type == Double.class) {
064                return new Double(number.doubleValue()/100);
065            } else {
066                throw new RuntimeException("PercentEditor: Unhandled type "+type.getName());
067            }
068        }
069    }
070