PaintEvent

Name

Description

The PaintEvent class represents the paint and update operations that the AWT performs on components. There is no PaintListener interface, so the only way to catch these events is to override paint(Graphics) and update(Graphics) in Component. This class exists so that paint events will get serialized properly.

Class Definition

public class java.awt.event.PaintEvent extends java.awt.event.ComponentEvent {
 // Constants public final static int PAINT;
public final static int PAINT_FIRST;
public final static int PAINT_LAST;
public final static int UPDATE; // Constructor public PaintEvent (Component source, int id, Rectangle updateRect); // Instance Methods public Rectangle getUpdateRect();
public String paramString();
public void setUpdateRect (Rectangle updateRect);
}

Class Definition

public class java.awt.event.PaintEvent extends java.awt.event.ComponentEvent {
 // Constants public final static int PAINT;
public final static int PAINT_FIRST;
public final static int PAINT_LAST;
public final static int UPDATE; //Constructor public PaintEvent (Component source, int id, Rectangle updateRect); // Instance Methods public Rectangle getUpdateRect();
public String paramString();
public void setUpdateRect (Rectangle updateRect);
}

Constants

PAINT

public final static int PAINT

The paint event type.

PAINT_FIRST

public final static int PAINT_FIRST

Specifies the beginning range of paint event ID values.

PAINT_LAST

public final static int PAINT_LAST

Specifies the ending range of paint event ID values.

UPDATE

public final static int UPDATE

The update event type.

Constructor

PaintEvent

public PaintEvent (Component source, ind id, Rectangle updateRect)

• Parameters
• • source
  • The source of the event.
  • id
  • The event type ID.
  • g
  • The rectangular area to paint.
• Description
• Constructs a PaintEvent with the given characteristics.

Instance Methods

getUpdateRect

public Rectangle getUpdateRect()

• Returns
• The rectangular area that needs painting.

paramString

public String paramString()

• Returns
• String with current settings of the PaintEvent.
• Overrides
• ComponentEvent.paramString()
• Description
• Helper method for toString() to generate string of current settings.

setUpdateRect

public void setUpdateRect (Rectangle updateRect)

• Parameters
• • updateRect
  • The rectangular area to paint.
• Description
• Changes the rectangular area that this PaintEvent will paint.

See Also

Component, ComponentEvent, Graphics