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Java > Open Source Codes > org > objectweb > jac > aspects > gui > web > FloatEditor


1 /*
2   Copyright (C) 2003 Laurent Martelli <laurent@aopsys.com>
3   
4   This program is free software; you can redistribute it and/or modify
5   it under the terms of the GNU Lesser General Public License as
6   published by the Free Software Foundation; either version 2 of the
7   License, or (at your option) any later version.
8
9   This program is distributed in the hope that it will be useful, but
10   WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12   Lesser General Public License for more details.
13
14   You should have received a copy of the GNU Lesser General Public
15   License along with this program; if not, write to the Free Software
16   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
17   USA */
18
19 package org.objectweb.jac.aspects.gui.web;
20
21 import java.text.ParsePosition JavaDoc;
22 import org.objectweb.jac.aspects.gui.FloatFormat;
23 import org.objectweb.jac.aspects.gui.Length;
24 import org.objectweb.jac.aspects.gui.NumberFormat;
25 import org.objectweb.jac.core.rtti.FieldItem;
26
27 /**
28  * HTML editor and viewer for percentage values. It can handle short,
29  * int, long, float, and double. In the case of short, int and long,
30  * the percentage value is considered to be between 0 and 100, while
31  * in the case of float and double it must be between 0 and 1.
32  */
33 public class FloatEditor extends FormatEditor
34     implements HTMLEditor
35 {
36     public FloatEditor(Object JavaDoc substance, FieldItem field) {
37         super(substance,field);
38         width = new Length("15ex");
39     }
40
41     protected void initFormat(FieldItem field) {
42         format = new FloatFormat(field);
43     }
44
45     public Object JavaDoc parse(String JavaDoc s) {
46         ParsePosition JavaDoc pos = new ParsePosition JavaDoc(0);
47         Class JavaDoc cl = type.getActualClass();
48         if (cl==float.class || cl==Float JavaDoc.class) {
49             return ((NumberFormat)format).parseFloat(s,pos);
50         } else if (cl==double.class || cl==Double JavaDoc.class) {
51             return ((NumberFormat)format).parseDouble(s,pos);
52         } else {
53             throw new RuntimeException JavaDoc("FloatEditor: Unhandled type "+type.getName());
54         }
55     }
56 }
57
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