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Java Source | 1998-03-20 | 2.9 KB | 106 lines |
- /*
- * @(#)PaintEvent.java 1.9 98/03/18
- *
- * Copyright 1996, 1997 by Sun Microsystems, Inc.,
- * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
- * 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.
- */
-
- package java.awt.event;
-
- import java.awt.Component;
- import java.awt.Event;
- import java.awt.Rectangle;
-
- /**
- * The component-level paint event.
- * This event is a special type which is used to ensure that
- * paint/update method calls are serialized along with the other
- * events delivered from the event queue. This event is not
- * designed to be used with the Event Listener model; programs
- * should continue to override paint/update methods in order
- * render themselves properly.
- *
- * @version 1.9 03/18/98
- * @author Amy Fowler
- */
- public class PaintEvent extends ComponentEvent {
-
- /**
- * Marks the first integer id for the range of paint event ids.
- */
- public static final int PAINT_FIRST = 800;
-
- /**
- * Marks the last integer id for the range of paint event ids.
- */
- public static final int PAINT_LAST = 801;
-
- /**
- * The paint event type.
- */
- public static final int PAINT = PAINT_FIRST;
-
- /**
- * The update event type.
- */
- public static final int UPDATE = PAINT_FIRST + 1; //801
-
- Rectangle updateRect;
-
- /*
- * JDK 1.1 serialVersionUID
- */
- private static final long serialVersionUID = 1267492026433337593L;
-
- /**
- * Constructs a PaintEvent object with the specified source component
- * and type.
- * @param source the object where the event originated
- * @param id the event type
- * @param updateRect the rectangle area which needs to be repainted
- */
- public PaintEvent(Component source, int id, Rectangle updateRect) {
- super(source, id);
- this.updateRect = updateRect;
- }
-
- /**
- * Returns the rectangle representing the area which needs to be
- * repainted in response to this event.
- */
- public Rectangle getUpdateRect() {
- return updateRect;
- }
-
- /**
- * Sets the rectangle representing the area which needs to be
- * repainted in response to this event.
- * @param updateRect the rectangle area which needs to be repainted
- */
- public void setUpdateRect(Rectangle updateRect) {
- this.updateRect = updateRect;
- }
-
- public String paramString() {
- String typeStr;
- switch(id) {
- case PAINT:
- typeStr = "PAINT";
- break;
- case UPDATE:
- typeStr = "UPDATE";
- break;
- default:
- typeStr = "unknown type";
- }
- return typeStr + ",updateRect="+(updateRect != null ? updateRect.toString() : "null");
- }
- }
-