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Java Source | 1997-05-20 | 2.7 KB | 83 lines |
- /*
- * @(#)EventDispatchThread.java 1.14 97/03/10 Amy Fowler
- *
- * Copyright (c) 1995, 1996 Sun Microsystems, Inc. All Rights Reserved.
- *
- * This software is the confidential and proprietary information of Sun
- * Microsystems, Inc. ("Confidential Information"). You shall not
- * disclose such Confidential Information and shall use it only in
- * accordance with the terms of the license agreement you entered into
- * with Sun.
- *
- * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
- * SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
- * PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
- * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
- * THIS SOFTWARE OR ITS DERIVATIVES.
- *
- * CopyrightVersion 1.1_beta
- *
- */
-
- package java.awt;
-
- import java.awt.event.MouseEvent;
- import java.awt.event.KeyEvent;
- import java.awt.event.PaintEvent;
- import java.awt.peer.ActiveEvent;
-
- /**
- * EventDispatchThread is a package-private AWT class which takes
- * events off the EventQueue and dispatches them to the appropriate
- * AWT components.
- *
- * @version 1.14 03/10/97
- * @author Tom Ball
- * @author Amy Fowler
- */
- class EventDispatchThread extends Thread {
- private EventQueue theQueue;
- private boolean doDispatch = true;
-
- EventDispatchThread(String name, EventQueue queue) {
- super(name);
- theQueue = queue;
- }
-
- public void stopDispatching() {
- doDispatch = false;
- }
-
- public void run() {
- while (doDispatch) {
- try {
- AWTEvent event = theQueue.getNextEvent();
- if (false) {
- // Not until 1.2...
- // theQueue.dispatchEvent(event);
- } else {
- // old code...
- Object src = event.getSource();
- if (src instanceof Component) {
- ((Component)src).dispatchEvent(event);
- } else if (src instanceof MenuComponent) {
- ((MenuComponent)src).dispatchEvent(event);
- } else if (event instanceof ActiveEvent) {
- // This could become the sole method of dispatching in time, and
- // moved to the event queue's dispatchEvent() method.
- ((ActiveEvent)event).dispatch();
- }
- }
- } catch (ThreadDeath death) {
- return;
-
- } catch (Throwable e) {
- System.err.println(
- "Exception occurred during event dispatching:");
- e.printStackTrace();
- }
- }
- }
- }
-