-
Notifications
You must be signed in to change notification settings - Fork 156
/
MainPanel.java
93 lines (81 loc) · 2.78 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
82
83
84
85
86
87
88
89
90
91
92
93
// -*- mode:java; encoding:utf-8 -*-
// vim:set fileencoding=utf-8:
// @homepage@
package example;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.WindowEvent;
import java.util.stream.Stream;
import javax.swing.*;
import javax.swing.plaf.basic.BasicToolBarUI;
public final class MainPanel extends JPanel {
private MainPanel() {
super(new BorderLayout());
JPopupMenu popup = new JPopupMenu();
initMenu(popup);
JMenuBar menuBar = new JMenuBar();
JMenu menu = new JMenu("File");
initMenu(menu);
menuBar.add(menu);
EventQueue.invokeLater(() -> getRootPane().setJMenuBar(menuBar));
JToolBar toolBar = new JToolBar();
toolBar.add(new JLabel("Floatable JToolBar:"));
toolBar.add(Box.createGlue());
toolBar.add(new ExitAction());
JTree tree = new JTree();
tree.setComponentPopupMenu(popup);
add(toolBar, BorderLayout.SOUTH);
add(new JScrollPane(tree));
setPreferredSize(new Dimension(320, 240));
}
private static void initMenu(JComponent p) {
Stream.of(
new JMenuItem("Open(sample)"), new JMenuItem("Save(sample)"),
new JSeparator(), new JMenuItem(new ExitAction())).forEach(p::add);
}
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 ExitAction extends AbstractAction {
protected ExitAction() {
super("Exit");
}
@Override public void actionPerformed(ActionEvent e) {
Component root;
Container parent = SwingUtilities.getUnwrappedParent((Component) e.getSource());
if (parent instanceof JPopupMenu) {
JPopupMenu popup = (JPopupMenu) parent;
root = SwingUtilities.getRoot(popup.getInvoker());
} else if (parent instanceof JToolBar) {
JToolBar toolBar = (JToolBar) parent;
if (((BasicToolBarUI) toolBar.getUI()).isFloating()) {
root = SwingUtilities.getWindowAncestor(toolBar).getOwner();
} else {
root = SwingUtilities.getRoot(toolBar);
}
} else {
root = SwingUtilities.getRoot(parent);
}
if (root instanceof Window) {
Window window = (Window) root;
window.dispatchEvent(new WindowEvent(window, WindowEvent.WINDOW_CLOSING));
}
}
}