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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/*******************************************************************************
* Copyright (c) 2000, 2010 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.snippets;
/*
* Display snippet: use the application system menu when available.
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*
* @since 3.7
*/
import org.eclipse.swt.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
public class Snippet354 {
static MenuItem getItem(Menu menu, int id) {
MenuItem[] items = menu.getItems();
for (int i = 0; i < items.length; i++) {
if (items[i].getID() == id) return items[i];
}
return null;
}
public static void main(String[] args) {
final Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout(1, false));
Menu appMenuBar = display.getMenuBar();
if (appMenuBar == null) {
appMenuBar = new Menu(shell, SWT.BAR);
shell.setMenuBar(appMenuBar);
}
MenuItem file = new MenuItem(appMenuBar, SWT.CASCADE);
file.setText("File");
Menu dropdown = new Menu(appMenuBar);
file.setMenu(dropdown);
MenuItem exit = new MenuItem(dropdown, SWT.PUSH);
exit.setText("Exit");
exit.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
display.dispose();
};
});
Listener keyDownFilter = new Listener() {
public void handleEvent(Event event) {
System.out.println("Key event!");
}
};
display.addFilter(SWT.KeyDown, keyDownFilter);
display.addFilter(SWT.KeyUp, keyDownFilter);
ArmListener armListener = new ArmListener() {
public void widgetArmed(ArmEvent e) {
System.out.println(e);
}
};
Menu systemMenu = display.getSystemMenu();
if (systemMenu != null) {
systemMenu.addMenuListener(new MenuListener() {
public void menuHidden(MenuEvent e) {
System.out.println("App menu closed");
}
public void menuShown(MenuEvent e) {
System.out.println("App menu opened");
}
});
MenuItem sysItem = getItem(systemMenu, SWT.ID_QUIT);
sysItem.addArmListener(armListener);
sysItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
System.out.println("Quit selected");
};
});
sysItem = getItem(systemMenu, SWT.ID_HIDE_OTHERS);
sysItem.addArmListener(armListener);
sysItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
System.out.println("Hide others selected -- and blocked!");
e.doit = false;
};
});
sysItem = getItem(systemMenu, SWT.ID_HIDE);
sysItem.addArmListener(armListener);
sysItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
System.out.println("Hide selected -- and blocked!");
e.doit = false;
};
});
sysItem = getItem(systemMenu, SWT.ID_PREFERENCES);
sysItem.addArmListener(armListener);
sysItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
System.out.println("Preferences selected");
};
});
sysItem = getItem(systemMenu, SWT.ID_ABOUT);
sysItem.addArmListener(armListener);
sysItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
System.out.println("About selected");
};
});
int prefsIndex = systemMenu.indexOf(getItem(systemMenu, SWT.ID_PREFERENCES));
MenuItem newAppMenuItem = new MenuItem(systemMenu, SWT.CASCADE, prefsIndex + 1);
newAppMenuItem.setText("SWT-added item");
newAppMenuItem.setAccelerator(SWT.MOD1 | 'i');
newAppMenuItem.addArmListener(armListener);
newAppMenuItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
System.out.println("SWT-added item selected");
};
});
Menu subMenu = new Menu(systemMenu);
for (int i = 0; i < 4; i++) {
MenuItem subItem = new MenuItem(subMenu, SWT.PUSH);
subItem.setText("Item " + i);
}
newAppMenuItem.setMenu(subMenu);
}
Button b = new Button(shell, SWT.PUSH);
b.setText("Test");
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
|
