1 /*
2 * Copyright (c) 2004, 2008, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.tools.jconsole.inspector;
27
28 import java.awt.*;
29 import java.awt.event.*;
30 import javax.swing.event.*;
31 import javax.swing.*;
32
33
34 /**
35 * This list implements the drag and drop functionality.
36 */
37 @SuppressWarnings("serial")
38 public class XTextField extends JPanel
39 implements DocumentListener,
40 ActionListener {
41
42 private XObject selectedObject;
43 protected JTextField textField;
44
45 private static boolean allowNullSelection = false;
46
47 protected final static int COMPATIBLE_VALUE = 1;
48 protected final static int CURRENT_VALUE = 2;
49 protected final static int NULL_VALUE = 3;
50
51 private JButton button;
52 private XOperations operation;
53
54 //used in XTestFieldEditor
55 public XTextField() {
56 super(new BorderLayout());
57 add(textField = new JTextField(),BorderLayout.CENTER);
58 textField.addActionListener(this);
59 //
60 }
61
62 public XTextField(Object value) {
63 this(value,value.toString().length());
64 }
65
66 public XTextField(Object value, int colWidth) {
67 this(value,value.getClass(),colWidth, true, null, null);
68 }
69
70 public XTextField(Object value,
71 Class<?> expectedClass,
72 int colWidth,
73 boolean isCallable,
74 JButton button,
75 XOperations operation) {
76 super(new BorderLayout());
77 this.button = button;
78 this.operation = operation;
79 add(textField = new JTextField(value.toString(),colWidth),
80 BorderLayout.CENTER);
81 if(isCallable)
82 textField.addActionListener(this);
83
84 boolean fieldEditable = Utils.isEditableType(expectedClass.getName());
85 if (fieldEditable && isCallable) {
86 textField.setEditable(true);
87 }
88 else {
89 textField.setEditable(false);
90 }
91 }
92
93 public static void setNullSelectionAllowed(boolean allowNullSelection) {
94 XTextField.allowNullSelection = allowNullSelection;
95 }
96
97 public static boolean getNullSelectionAllowed() {
98 return allowNullSelection;
99 }
100
101 protected void init(Object value, Class<?> expectedClass) {
102 boolean fieldEditable = Utils.isEditableType(expectedClass.getName());
103 clearObject();
104 if (value != null) {
105 textField.setText(value.toString());
106 }
107 else {
108 //null String value for the moment
109 textField.setText("");
110 }
111 textField.setToolTipText(null);
112 if (fieldEditable) {
113 if (!textField.isEditable()) {
114 textField.setEditable(true);
115 }
116
117 }
118 else {
119 if (textField.isEditable()) {
120 textField.setEditable(false);
121 }
122 }
123 }
124
125 private synchronized void clearObject() {
126 textField.getDocument().removeDocumentListener(this);
127 selectedObject = null;
128 setDefaultColors();
129 }
130
131 private synchronized void setDefaultColors() {
132 // if (fore != null) textField.setForeground(fore);
133 // if (back != null) textField.setBackground(back);
134 }
135
136 public void setHorizontalAlignment(int h) {
137 textField.setHorizontalAlignment(h);
138 }
139
140 //can be overwritten
141 protected JMenuItem buildJMenuItem(XObject xobject, int valueType) {
142 if (valueType == COMPATIBLE_VALUE) {
143 return new JMenuItem(xobject.getText());
144 }
145 else if (valueType == CURRENT_VALUE) {
146 return new JMenuItem("> "+xobject.getText());
147 }
148 else if (valueType == NULL_VALUE) {
149 return new JMenuItem("null");
150 }
151 else {
152 return null;
153 }
154 }
155
156 // ACTIONLISTENER IMPLEMENTATION
157 public void actionPerformed(ActionEvent e) {
158 if (e.getSource() instanceof JTextField) {
159 if(operation != null)
160 operation.performInvokeRequest(button);
161 }
162 }
163
164 /**
165 * This method returns either the user inputted String, or an XObject
166 * if one was dropped on the input field.
167 */
168 public Object getValue() {
169 if (selectedObject!=null) {
170 if (selectedObject == XObject.NULL_OBJECT) {
171 //null case
172 return null;
173 }
174 else {
175 return selectedObject;
176 }
177 }
178 else {
179 return textField.getText();
180 }
181 }
182
183 public void changedUpdate(DocumentEvent e) {
184 // the user typed something, so remove references
185 // to the obejct that was dropped.
186 clearObject();
187 }
188
189 public void removeUpdate(DocumentEvent e) {
190 // the user typed something, so remove references
191 // to the obejct that was dropped.
192 clearObject();
193 }
194
195 public void insertUpdate(DocumentEvent e) {
196 // the user typed something, so remove references
197 // to the obejct that was dropped.
198 clearObject();
199 }
200
201 }