Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
SizeTracker |
|
| 1.3333333333333333;1.333 |
1 | package org.jtheque.utils.ui; | |
2 | ||
3 | import javax.swing.JComponent; | |
4 | ||
5 | /* | |
6 | * This file is part of JTheque. | |
7 | * | |
8 | * JTheque is free software: you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation, either version 3 of the License. | |
11 | * | |
12 | * JTheque is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with JTheque. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
21 | /** | |
22 | * A tracker for the size of a <code>JComponent</code> | |
23 | * | |
24 | * @author Baptiste Wicht | |
25 | */ | |
26 | public final class SizeTracker { | |
27 | 0 | private int width = -1; |
28 | 0 | private int height = -1; |
29 | ||
30 | private final JComponent component; | |
31 | ||
32 | /** | |
33 | * Construct a new SizeTracker. | |
34 | * | |
35 | * @param c The component to track the sizes. | |
36 | */ | |
37 | public SizeTracker(JComponent c) { | |
38 | 0 | super(); |
39 | ||
40 | 0 | component = c; |
41 | 0 | } |
42 | ||
43 | /** | |
44 | * Update the cached size. | |
45 | */ | |
46 | public void updateSize() { | |
47 | 0 | width = component.getWidth(); |
48 | 0 | height = component.getHeight(); |
49 | 0 | } |
50 | ||
51 | /** | |
52 | * Indicate if the size has changed from the last update. | |
53 | * | |
54 | * @return <code>true</code> if the size has changed else <code>false</code>. | |
55 | */ | |
56 | public boolean hasSizeChanged() { | |
57 | 0 | return width != component.getWidth() || height != component.getHeight(); |
58 | } | |
59 | } |