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.web;
019    
020    import java.io.PrintWriter;
021    import org.objectweb.jac.core.rtti.FieldItem;
022    import org.objectweb.jac.aspects.gui.Format;
023    
024    public abstract class FormatViewer extends AbstractFieldView 
025        implements HTMLViewer
026    {
027        Object value;
028    
029        /** Stores the default format of the float */
030        protected Format format;
031    
032        public FormatViewer(Object value, Object substance, FieldItem field) {
033            super(substance,field);
034            initFormat(field);
035            setValue(value);
036        }
037    
038        public FormatViewer() {
039            isCellViewer = true;
040        }
041    
042        protected abstract void initFormat(FieldItem field);
043    
044        public void setValue(Object value) {
045            this.value = value;
046        }
047    
048        public void setField(FieldItem field) {
049            super.setField(field);
050            initFormat(field);
051        }
052    
053        protected String alignment = null;
054    
055        public void genHTML(PrintWriter out) {
056            if (value!=null) {
057                if (isCellViewer && alignment!=null) 
058                    out.print("<div style=\"text-align: "+alignment+"\">");
059                out.print(format.format(value));
060                if (isCellViewer && alignment!=null) 
061                    out.print("</div>");         
062            }
063        }
064    }