You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
140 lines
3.6 KiB
140 lines
3.6 KiB
/*
|
|
* Copyright (c) 1996, 2008, Oracle and/or its affiliates. All rights reserved.
|
|
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*/
|
|
|
|
package java.awt.event;
|
|
|
|
import java.awt.Component;
|
|
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.
|
|
* <p>
|
|
* An unspecified behavior will be caused if the {@code id} parameter
|
|
* of any particular {@code PaintEvent} instance is not
|
|
* in the range from {@code PAINT_FIRST} to {@code PAINT_LAST}.
|
|
*
|
|
* @author Amy Fowler
|
|
* @since 1.1
|
|
*/
|
|
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
|
|
|
|
/**
|
|
* This is the rectangle that represents the area on the source
|
|
* component that requires a repaint.
|
|
* This rectangle should be non null.
|
|
*
|
|
* @serial
|
|
* @see java.awt.Rectangle
|
|
* @see #setUpdateRect(Rectangle)
|
|
* @see #getUpdateRect()
|
|
*/
|
|
Rectangle updateRect;
|
|
|
|
/*
|
|
* JDK 1.1 serialVersionUID
|
|
*/
|
|
private static final long serialVersionUID = 1267492026433337593L;
|
|
|
|
/**
|
|
* Constructs a <code>PaintEvent</code> object with the specified
|
|
* source component and type.
|
|
* <p> This method throws an
|
|
* <code>IllegalArgumentException</code> if <code>source</code>
|
|
* is <code>null</code>.
|
|
*
|
|
* @param source The object where the event originated
|
|
* @param id The integer that identifies the event type.
|
|
* For information on allowable values, see
|
|
* the class description for {@link PaintEvent}
|
|
* @param updateRect The rectangle area which needs to be repainted
|
|
* @throws IllegalArgumentException if <code>source</code> is null
|
|
* @see #getSource()
|
|
* @see #getID()
|
|
* @see #getUpdateRect()
|
|
*/
|
|
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");
|
|
}
|
|
}
|