Source code: jac/aspects/gui/web/PrimitiveFieldEditor.java
1 /*
2 Copyright (C) 2002-2003 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 jac.aspects.gui.web;
20
21 import jac.aspects.gui.GuiAC;
22 import jac.core.rtti.FieldItem;
23 import java.io.PrintWriter;
24 import java.lang.reflect.Constructor;
25
26
27 /**
28 * HTML editor for primitive types (int, long, float, double, short) and String
29 *
30 */
31 public class PrimitiveFieldEditor extends AbstractFieldEditor
32 implements HTMLEditor
33 {
34 Class type;
35 boolean password;
36
37 public PrimitiveFieldEditor(Object substance, FieldItem field,
38 Class type, boolean password) {
39 super(substance,field);
40 this.type = type;
41 this.password = password;
42 width = 15;
43 }
44
45 // HTMLEditor interface
46
47 public void genHTML(PrintWriter out) {
48 out.println("<INPUT type=\""+(password?"password":"text")+"\""+
49 " class=\"editor\""+
50 " name=\""+label+"\""+
51 " style=\"width:"+width+"ex\""+
52 " value=\""+ ( value==null ? "" : value.toString() ) +"\">");
53 }
54
55 public boolean readValue(Object parameter) {
56 String string = (String)parameter;
57 if ( type == int.class || type == Integer.class ) {
58 setValue(new Integer (string));
59 } else if ( type == boolean.class || type == Boolean.class) {
60 setValue(new Boolean (string));
61 } else if ( type == long.class || type == Long.class ) {
62 setValue(new Long (string));
63 } else if ( type == float.class || type == Float.class ) {
64 setValue(new Float (string));
65 } else if ( type == double.class || type == Double.class ) {
66 setValue(new Double (string));
67 } else if ( type == short.class || type == Short.class ) {
68 setValue(new Short (string));
69 } else if ( type == byte.class || type == Byte.class ) {
70 setValue(new Byte(string));
71 } else if ( type == char.class || type == Character.class ) {
72 setValue(new Character(string.charAt(0)));
73 } else if ( type == String.class ) {
74 setValue(string);
75 } else {
76 try {
77 // trying to construct the object from its textual
78 // representation (I think that any class should have
79 // a constructor taking a string... this is so helpful...)
80 // of course, this will raise an exception most of the time :-(
81 Constructor c = type.getConstructor(new Class[] {String.class});
82 setValue(c.newInstance(new Object[] {string}));
83 } catch( Exception e ) {
84 e.printStackTrace();
85 throw new RuntimeException("Unhandled type "+type.getName());
86 }
87 }
88 return true;
89 }
90 }
91