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Java > Open Source Codes > com > lowagie > tools > arguments > BitsetArgument


1 /*
2  * $Id: BitsetArgument.java,v 1.3 2005/03/31 07:23:03 blowagie Exp $
3  * $Name: $
4  *
5  * Copyright 2005 by Bruno Lowagie.
6  *
7  * The contents of this file are subject to the Mozilla Public License Version 1.1
8  * (the "License"); you may not use this file except in compliance with the License.
9  * You may obtain a copy of the License at http://www.mozilla.org/MPL/
10  *
11  * Software distributed under the License is distributed on an "AS IS" basis,
12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13  * for the specific language governing rights and limitations under the License.
14  *
15  * The Original Code is 'iText, a free JAVA-PDF library'.
16  *
17  * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
18  * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
19  * All Rights Reserved.
20  * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
21  * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
22  *
23  * Contributor(s): all the names of the contributors are added in the source code
24  * where applicable.
25  *
26  * Alternatively, the contents of this file may be used under the terms of the
27  * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
28  * provisions of LGPL are applicable instead of those above. If you wish to
29  * allow use of your version of this file only under the terms of the LGPL
30  * License and not to allow others to use your version of this file under
31  * the MPL, indicate your decision by deleting the provisions above and
32  * replace them with the notice and other provisions required by the LGPL.
33  * If you do not delete the provisions above, a recipient may use your version
34  * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
35  *
36  * This library is free software; you can redistribute it and/or modify it
37  * under the terms of the MPL as stated above or under the terms of the GNU
38  * Library General Public License as published by the Free Software Foundation;
39  * either version 2 of the License, or any later version.
40  *
41  * This library is distributed in the hope that it will be useful, but WITHOUT
42  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
43  * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
44  * details.
45  *
46  * If you didn't download this code from the following link, you should check if
47  * you aren't using an obsolete version:
48  * http://www.lowagie.com/iText/
49  */
50 package com.lowagie.tools.arguments;
51
52 import java.awt.event.ActionEvent;
53
54 import javax.swing.JCheckBox;
55 import javax.swing.JOptionPane;
56
57 import com.lowagie.tools.plugins.AbstractTool;
58
59 /**
60  * Argument that results in a set of "1" and "0" values.
61  */
62 public class BitsetArgument extends ToolArgument {
63     /** These are the different options that can be true or false. */
64     private JCheckBox[] options;
65     
66     /**
67      * Constructs an BitsetArgument.
68      * @param tool the tool that needs this argument
69      * @param name the name of the argument
70      * @param description the description of the argument
71      * @param options the different options that can be true or false
72      */
73     public BitsetArgument(AbstractTool tool, String name, String description, String[] options) {
74         super(tool, name, description, String.class.getName());
75         this.options = new JCheckBox[options.length];
76         for (int i = 0; i < options.length; i++) {
77             this.options[i] = new JCheckBox(options[i]);
78         }
79     }
80     
81     /**
82      * Gets the argument as an object.
83      * @return an object
84      * @throws InstantiationException
85      */
86     public Object getArgument() throws InstantiationException {
87         return value;
88     }
89     
90     /**
91      * @see com.lowagie.tools.arguments.ToolArgument#getUsage()
92      */
93     public String getUsage() {
94         StringBuffer buf = new StringBuffer(super.getUsage());
95         buf.append(" possible options:\n");
96         for (int i = 0; i < options.length; i++) {
97             buf.append(" - ");
98             buf.append(options[i].getText());
99             buf.append("\n");
100         }
101         return buf.toString();
102     }
103     
104     /**
105      * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
106      */
107     public void actionPerformed(ActionEvent evt) {
108         Object[] message = new Object[1 + options.length];
109         message[0] = "Check the options you need:";
110         for(int i = 0; i < options.length; i++ ) {
111             message[i+1] = options[i];
112         }
113         int result = JOptionPane.showOptionDialog(
114                 tool.getInternalFrame(),
115                 message,
116                 description,
117                 JOptionPane.OK_CANCEL_OPTION,
118                 JOptionPane.QUESTION_MESSAGE,
119                 null,
120                 null,
121                 null
122             );
123         if (result == 0) {
124             StringBuffer buf = new StringBuffer();
125             for (int i = 0; i < options.length; i++) {
126                 if (options[i].isSelected()) {
127                     buf.append("1");
128                 }
129                 else {
130                     buf.append("0");
131                 }
132             }
133             setValue(buf.toString());
134         }
135     }
136 }
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