128 lines
4.1 KiB
Java
128 lines
4.1 KiB
Java
/* PaintEvent.java -- an area of the screen needs to be repainted
|
|
Copyright (C) 1999, 2002 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Classpath.
|
|
|
|
GNU Classpath is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU Classpath is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU Classpath; see the file COPYING. If not, write to the
|
|
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA.
|
|
|
|
Linking this library statically or dynamically with other modules is
|
|
making a combined work based on this library. Thus, the terms and
|
|
conditions of the GNU General Public License cover the whole
|
|
combination.
|
|
|
|
As a special exception, the copyright holders of this library give you
|
|
permission to link this library with independent modules to produce an
|
|
executable, regardless of the license terms of these independent
|
|
modules, and to copy and distribute the resulting executable under
|
|
terms of your choice, provided that you also meet, for each linked
|
|
independent module, the terms and conditions of the license of that
|
|
module. An independent module is a module which is not derived from
|
|
or based on this library. If you modify this library, you may extend
|
|
this exception to your version of the library, but you are not
|
|
obligated to do so. If you do not wish to do so, delete this
|
|
exception statement from your version. */
|
|
|
|
|
|
package java.awt.event;
|
|
|
|
import java.awt.Component;
|
|
import java.awt.Rectangle;
|
|
|
|
/**
|
|
* This event is generated when an area of the screen needs to be painted.
|
|
* This event is not meant for users, but exists to allow proper serialization
|
|
* behavior in the EventQueue with user-accessible events.
|
|
*
|
|
* @author Aaron M. Renn <arenn@urbanophile.com>
|
|
* @since 1.1
|
|
* @status updated to 1.4
|
|
*/
|
|
public class PaintEvent extends ComponentEvent
|
|
{
|
|
/**
|
|
* Compatible with JDK 1.1+.
|
|
*/
|
|
private static final long serialVersionUID = 1267492026433337593L;
|
|
|
|
/** This is the first id in the range of event ids used by this class. */
|
|
public static final int PAINT_FIRST = 800;
|
|
|
|
/** This is the last id in the range of event ids used by this class. */
|
|
public static final int PAINT_LAST = 801;
|
|
|
|
/** This id is for paint event types. */
|
|
public static final int PAINT = 800;
|
|
|
|
/** This id is for update event types. */
|
|
public static final int UPDATE = 801;
|
|
|
|
/**
|
|
* This is the rectange to be painted or updated.
|
|
*
|
|
* @see #getUpdateRect()
|
|
* @see #setUpdateRect(Rectangle)
|
|
* @serial the non-null rectangle to be painted
|
|
*/
|
|
private Rectangle updateRect;
|
|
|
|
/**
|
|
* Initializes a new instance of <code>PaintEvent</code> with the specified
|
|
* source, id, and update region. Note that an invalid id leads to
|
|
* unspecified results.
|
|
*
|
|
* @param source the event source
|
|
* @param id the event id
|
|
* @param updateRect the rectangle to repaint
|
|
* @throws IllegalArgumentException if source is null
|
|
*/
|
|
public PaintEvent(Component source, int id, Rectangle updateRect)
|
|
{
|
|
super(source, id);
|
|
this.updateRect = updateRect;
|
|
}
|
|
|
|
/**
|
|
* Returns the rectange to be updated for this event.
|
|
*
|
|
* @return the rectangle to update
|
|
*/
|
|
public Rectangle getUpdateRect()
|
|
{
|
|
return updateRect;
|
|
}
|
|
|
|
/**
|
|
* Sets the rectangle to be updated for this event.
|
|
*
|
|
* @param updateRect the new update rectangle for this event
|
|
*/
|
|
public void setUpdateRect(Rectangle updateRect)
|
|
{
|
|
this.updateRect = updateRect;
|
|
}
|
|
|
|
/**
|
|
* Returns a string identifying this event.
|
|
*
|
|
* @return a string identifying this event
|
|
*/
|
|
public String paramString()
|
|
{
|
|
return (id == PAINT ? "PAINT,updateRect=" : id == UPDATE
|
|
? "UPDATE,updateRect=" : "unknown type,updateRect=") + updateRect;
|
|
}
|
|
} // class PaintEvent
|