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