1 /*
2 * Copyright 2006-2016 The JGUIraffe Team.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License")
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package net.sf.jguiraffe.examples.tutorial.createfile;
17
18 import net.sf.jguiraffe.gui.forms.ComponentHandler;
19
20 /**
21 * <p>
22 * A task for an action that appends a configurable text to a text component.
23 * </p>
24 * <p>
25 * This task class is used by actions of the create file dialog. It populates
26 * the text field for the file's content with predefined text fragments.
27 * </p>
28 *
29 * @author Oliver Heger
30 * @version $Id: AppendTextActionTask.java 205 2012-01-29 18:29:57Z oheger $
31 */
32 public class AppendTextActionTask implements Runnable
33 {
34 /** The handler for the text field. */
35 private final ComponentHandler<String> textHandler;
36
37 /** The text to be appended. */
38 private final String text;
39
40 /**
41 * Creates a new instance of {@code AppendTextActionTask} and initializes
42 * it.
43 *
44 * @param handler the handler to be updated
45 * @param txt the text to be appended
46 */
47 public AppendTextActionTask(ComponentHandler<String> handler, String txt)
48 {
49 textHandler = handler;
50 text = txt;
51 }
52
53 /**
54 * Executes this task. This implementation obtains the current text of the
55 * managed text handler. Then it appends the text and writes it back.
56 */
57 @Override
58 public void run()
59 {
60 String currentText = textHandler.getData();
61 textHandler.setData(currentText + text);
62 }
63 }