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comparison org.eclipse.jface/src/org/eclipse/jface/bindings/keys/KeyLookupFactory.d @ 12:bc29606a740c

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Added dwt-addons in original directory structure of eclipse.org
author Frank Benoit <benoit@tionex.de>
date Sat, 14 Mar 2009 18:23:29 +0100
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11:43904fec5dca 12:bc29606a740c
1 /*******************************************************************************
2 * Copyright (c) 2005, 2006 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 * IBM Corporation - initial API and implementation
10 * Port to the D programming language:
11 * Frank Benoit <benoit@tionex.de>
12 *******************************************************************************/
13 module org.eclipse.jface.bindings.keys.KeyLookupFactory;
14
15 import org.eclipse.jface.bindings.keys.SWTKeyLookup;
16 import org.eclipse.jface.bindings.keys.IKeyLookup;
17
18 import java.lang.all;
19 import java.util.Set;
20
21 /**
22 * <p>
23 * A factory class for <code>ILookup</code> instances. This factory can be
24 * used to retrieve instances of look-ups defined by this package. It also
25 * allows you to define your own look-up for use in the classes.
26 * </p>
27 *
28 * @since 3.1
29 */
30 public final class KeyLookupFactory {
31
32 /**
33 * The SWT key look-up defined by this package.
34 */
35 private static SWTKeyLookup SWT_KEY_LOOKUP;
36
37 /**
38 * The instance that should be used by <code>KeyStroke</code> in
39 * converting string representations to instances.
40 */
41 private static IKeyLookup defaultLookup;
42
43 private static void check_staticthis(){
44 if( SWT_KEY_LOOKUP is null ){
45 synchronized{
46 if( SWT_KEY_LOOKUP is null ){
47 SWT_KEY_LOOKUP = new SWTKeyLookup();
48 defaultLookup = SWT_KEY_LOOKUP;
49 }
50 }
51 }
52 }
53
54 /**
55 * Provides an instance of <code>SWTKeyLookup</code>.
56 *
57 * @return The SWT look-up table for key stroke format information; never
58 * <code>null</code>.
59 */
60 public static final IKeyLookup getSWTKeyLookup() {
61 check_staticthis();
62 return SWT_KEY_LOOKUP;
63 }
64
65 /**
66 * An accessor for the current default look-up.
67 *
68 * @return The default look-up; never <code>null</code>.
69 */
70 public static final IKeyLookup getDefault() {
71 check_staticthis();
72 return defaultLookup;
73 }
74
75 /**
76 * Sets the default look-up.
77 *
78 * @param defaultLookup
79 * the default look-up. Must not be <code>null</code>.
80 */
81 public static final void setDefault(IKeyLookup defaultLookup) {
82 check_staticthis();
83 if (defaultLookup is null) {
84 throw new NullPointerException("The look-up must not be null"); //$NON-NLS-1$
85 }
86
87 KeyLookupFactory.defaultLookup = defaultLookup;
88 }
89
90 /**
91 * This class should not be instantiated.
92 */
93 private this() {
94 // Not to be constructred.
95 }
96 }