2362N/A * Copyright (c) 2000, 2007, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * This class is used to aid in keeping track of DisplayChangedListeners and 0N/A * notifying them when a display change has taken place. DisplayChangedListeners 0N/A * are notified when the display's bit depth is changed, or when a top-level 0N/A * window has been dragged onto another screen. 0N/A * It is safe for a DisplayChangedListener to be added while the list is being 0N/A * The displayChanged() call is propagated after some occurrence (either 0N/A * due to user action or some other application) causes the display mode 0N/A * (e.g., depth or resolution) to change. All heavyweight components need 0N/A * to know when this happens because they need to create new surfaceData 0N/A * objects based on the new depth. 0N/A * displayChanged() is also called on Windows when they are moved from one 0N/A * screen to another on a system equipped with multiple displays. 0N/A // Create a new synchronizedMap with initial capacity of one listener. 0N/A // It is asserted that the most common case is to have one GraphicsDevice 0N/A // and one top-level Window. 0N/A * Add a DisplayChangeListener to this SunDisplayChanger so that it is 0N/A * notified when the display is changed. 0N/A * Remove the given DisplayChangeListener from this SunDisplayChanger. 0N/A * Notify our list of DisplayChangedListeners that a display change has 0N/A * taken place by calling their displayChanged() methods. 0N/A // This method is implemented by making a clone of the set of listeners, 0N/A // and then iterating over the clone. This is because during the course 0N/A // of responding to a display change, it may be appropriate for a 0N/A // DisplayChangedListener to add or remove itself from a SunDisplayChanger. 0N/A // If the set itself were iterated over, rather than a clone, it is 0N/A // trivial to get a ConcurrentModificationException by having a 0N/A // DisplayChangedListener remove itself from its list. 0N/A // Because all display change handling is done on the event thread, 0N/A // synchronization provides no protection against modifying the listener 0N/A // list while in the middle of iterating over it. -bchristi 7/10/2001 0N/A // This DisplayChangeListener is no longer valid. Most 0N/A // likely, a top-level window was dispose()d, but its 0N/A // Java objects have not yet been garbage collected. In any 0N/A // case, we no longer need to track this listener, though we 0N/A // do need to remove it from the original list, not the clone. 0N/A * Notify our list of DisplayChangedListeners that a palette change has 0N/A * taken place by calling their paletteChanged() methods. 0N/A // This method is implemented by making a clone of the set of listeners, 0N/A // and then iterating over the clone. This is because during the course 0N/A // of responding to a display change, it may be appropriate for a 0N/A // DisplayChangedListener to add or remove itself from a SunDisplayChanger. 0N/A // If the set itself were iterated over, rather than a clone, it is 0N/A // trivial to get a ConcurrentModificationException by having a 0N/A // DisplayChangedListener remove itself from its list. 0N/A // Because all display change handling is done on the event thread, 0N/A // synchronization provides no protection against modifying the listener 0N/A // list while in the middle of iterating over it. -bchristi 7/10/2001 0N/A // This DisplayChangeListener is no longer valid. Most 0N/A // likely, a top-level window was dispose()d, but its 0N/A // Java objects have not yet been garbage collected. In any 0N/A // case, we no longer need to track this listener, though we 0N/A // do need to remove it from the original list, not the clone.