-
Notifications
You must be signed in to change notification settings - Fork 156
/
MainPanel.java
81 lines (69 loc) · 2.2 KB
/
MainPanel.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
// -*- mode:java; encoding:utf-8 -*-
// vim:set fileencoding=utf-8:
// @homepage@
package example;
import java.awt.*;
import java.util.Arrays;
import javax.swing.*;
public final class MainPanel extends JPanel {
private MainPanel() {
super(new BorderLayout());
JDesktopPane desktop = new JDesktopPane();
int idx = 0;
for (Color c : Arrays.asList(Color.RED, Color.GREEN, Color.BLUE)) {
desktop.add(makeInternalFrame(c, ++idx));
}
EventQueue.invokeLater(() -> {
JInternalFrame[] frames = desktop.getAllFrames();
Arrays.asList(frames).forEach(f -> f.setVisible(true));
});
add(desktop);
setPreferredSize(new Dimension(320, 240));
}
private static JInternalFrame makeInternalFrame(Color color, int idx) {
String title = String.format("Document #%s", idx);
JInternalFrame f = new JInternalFrame(title, true, true, true, true);
f.setFrameIcon(new ColorIcon(color));
f.setSize(240, 120);
f.setLocation(10 + 20 * idx, 20 * idx);
return f;
}
public static void main(String[] args) {
EventQueue.invokeLater(MainPanel::createAndShowGui);
}
private static void createAndShowGui() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (UnsupportedLookAndFeelException ignored) {
Toolkit.getDefaultToolkit().beep();
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException ex) {
ex.printStackTrace();
return;
}
JFrame frame = new JFrame("@title@");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.getContentPane().add(new MainPanel());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}
class ColorIcon implements Icon {
private final Color color;
protected ColorIcon(Color color) {
this.color = color;
}
@Override public void paintIcon(Component c, Graphics g, int x, int y) {
Graphics2D g2 = (Graphics2D) g.create();
g2.translate(x, y);
g2.setPaint(color);
g2.fillRect(1, 1, getIconWidth() - 2, getIconHeight() - 2);
g2.dispose();
}
@Override public int getIconWidth() {
return 16;
}
@Override public int getIconHeight() {
return 16;
}
}