Mercurial > projects > dwt-addons
diff dwtx/jface/bindings/keys/KeyLookupFactory.d @ 16:e0f0aaf75edd
PopupDialog, bindings and actions
author | Frank Benoit <benoit@tionex.de> |
---|---|
date | Tue, 01 Apr 2008 08:00:31 +0200 |
parents | |
children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwtx/jface/bindings/keys/KeyLookupFactory.d Tue Apr 01 08:00:31 2008 +0200 @@ -0,0 +1,95 @@ +/******************************************************************************* + * Copyright (c) 2005, 2006 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 + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwtx.jface.bindings.keys.KeyLookupFactory; + +import dwtx.jface.bindings.keys.SWTKeyLookup; +import dwtx.jface.bindings.keys.IKeyLookup; + +import dwt.dwthelper.utils; + +/** + * <p> + * A factory class for <code>ILookup</code> instances. This factory can be + * used to retrieve instances of look-ups defined by this package. It also + * allows you to define your own look-up for use in the classes. + * </p> + * + * @since 3.1 + */ +public final class KeyLookupFactory { + + /** + * The DWT key look-up defined by this package. + */ + private static SWTKeyLookup SWT_KEY_LOOKUP; + + /** + * The instance that should be used by <code>KeyStroke</code> in + * converting string representations to instances. + */ + private static IKeyLookup defaultLookup; + + private static void check_staticthis(){ + if( SWT_KEY_LOOKUP is null ){ + synchronized{ + if( SWT_KEY_LOOKUP is null ){ + SWT_KEY_LOOKUP = new SWTKeyLookup(); + defaultLookup = SWT_KEY_LOOKUP; + } + } + } + } + + /** + * Provides an instance of <code>SWTKeyLookup</code>. + * + * @return The DWT look-up table for key stroke format information; never + * <code>null</code>. + */ + public static final IKeyLookup getSWTKeyLookup() { + check_staticthis(); + return SWT_KEY_LOOKUP; + } + + /** + * An accessor for the current default look-up. + * + * @return The default look-up; never <code>null</code>. + */ + public static final IKeyLookup getDefault() { + check_staticthis(); + return defaultLookup; + } + + /** + * Sets the default look-up. + * + * @param defaultLookup + * the default look-up. Must not be <code>null</code>. + */ + public static final void setDefault(IKeyLookup defaultLookup) { + check_staticthis(); + if (defaultLookup is null) { + throw new NullPointerException("The look-up must not be null"); //$NON-NLS-1$ + } + + KeyLookupFactory.defaultLookup = defaultLookup; + } + + /** + * This class should not be instantiated. + */ + private this() { + // Not to be constructred. + } +}