AWTEvent
package java.awt;
import java.util.EventObject;
import java.awt.event.*;
import java.awt.peer.ComponentPeer;
import java.awt.peer.LightweightPeer;
import java.lang.reflect.Field;
import sun.awt.AWTAccessor;
public abstract class AWTEvent extends EventObject
{
private byte bdata[];
protected int id;
protected boolean consumed = false;
transient boolean focusManagerIsDispatching = false;
transient boolean isPosted;
private transient boolean isSystemGenerated;
public final static long COMPONENT_EVENT_MASK = 0x01;
public final static long CONTAINER_EVENT_MASK = 0x02;
public final static long FOCUS_EVENT_MASK = 0x04;
public final static long KEY_EVENT_MASK = 0x08;
public final static long MOUSE_EVENT_MASK = 0x10;
public final static long MOUSE_MOTION_EVENT_MASK = 0x20;
public final static long WINDOW_EVENT_MASK = 0x40;
public final static long ACTION_EVENT_MASK = 0x80;
public final static long ADJUSTMENT_EVENT_MASK = 0x100;
public final static long ITEM_EVENT_MASK = 0x200;
public final static long TEXT_EVENT_MASK = 0x400;
public final static long INPUT_METHOD_EVENT_MASK = 0x800;
final static long INPUT_METHODS_ENABLED_MASK = 0x1000;
public final static long PAINT_EVENT_MASK = 0x2000;
public final static long INVOCATION_EVENT_MASK = 0x4000;
public final static long HIERARCHY_EVENT_MASK = 0x8000;
public final static long HIERARCHY_BOUNDS_EVENT_MASK = 0x10000;
public final static long MOUSE_WHEEL_EVENT_MASK = 0x20000;
public final static long WINDOW_STATE_EVENT_MASK = 0x40000;
public final static long WINDOW_FOCUS_EVENT_MASK = 0x80000;
public final static int RESERVED_ID_MAX = 1999;
private static Field inputEvent_CanAccessSystemClipboard_Field = null;
private static final long serialVersionUID = -1825314779160409405L;
static
{
Toolkit.loadLibraries();
if (!GraphicsEnvironment.isHeadless()) initIDs();
AWTAccessor.setAWTEventAccessor
(
new AWTAccessor.AWTEventAccessor()
{
public void setSystemGenerated(AWTEvent ev)
{
ev.isSystemGenerated = true;
}
public boolean isSystemGenerated(AWTEvent ev)
{
return ev.isSystemGenerated;
}
}
);
}
private static synchronized Field get_InputEvent_CanAccessSystemClipboard()
{
if (inputEvent_CanAccessSystemClipboard_Field == null)
{
inputEvent_CanAccessSystemClipboard_Field =(Field)java.security.AccessController.doPrivileged
(
new java.security.PrivilegedAction()
{
public Object run()
{
Field field = null;
try
{
field = InputEvent.class.
getDeclaredField("canAccessSystemClipboard");
field.setAccessible(true);
return field;
}
catch (SecurityException e)
{
}
catch (NoSuchFieldException e)
{
}
return null;
}
}
);
}
return inputEvent_CanAccessSystemClipboard_Field;
}
private static native void initIDs();
public AWTEvent(Event event)
{
this(event.target, event.id);
}
public AWTEvent(Object source, int id)
{
super(source);
this.id = id;
switch(id)
{
case ActionEvent.ACTION_PERFORMED:
case ItemEvent.ITEM_STATE_CHANGED:
case AdjustmentEvent.ADJUSTMENT_VALUE_CHANGED:
case TextEvent.TEXT_VALUE_CHANGED:
consumed = true;
break;
default:
}
}
public int getID()
{
return id;
}
public String toString()
{
String srcName = null;
if (source instanceof Component)
{
srcName = ((Component)source).getName();
}
else if (source instanceof MenuComponent)
{
srcName = ((MenuComponent)source).getName();
}
return getClass().getName() + "[" + paramString() + "] on " +(srcName != null? srcName : source);
}
public String paramString()
{
return "";
}
protected void consume()
{
switch(id)
{
case KeyEvent.KEY_PRESSED:
case KeyEvent.KEY_RELEASED:
case MouseEvent.MOUSE_PRESSED:
case MouseEvent.MOUSE_RELEASED:
case MouseEvent.MOUSE_MOVED:
case MouseEvent.MOUSE_DRAGGED:
case MouseEvent.MOUSE_ENTERED:
case MouseEvent.MOUSE_EXITED:
case MouseEvent.MOUSE_WHEEL:
case InputMethodEvent.INPUT_METHOD_TEXT_CHANGED:
case InputMethodEvent.CARET_POSITION_CHANGED:
consumed = true;
break;
default:
}
}
protected boolean isConsumed()
{
return consumed;
}
Event convertToOld()
{
Object src = getSource();
int newid = id;
switch(id)
{
case KeyEvent.KEY_PRESSED:
case KeyEvent.KEY_RELEASED:
KeyEvent ke = (KeyEvent)this;
if (ke.isActionKey())
{
newid = (id == KeyEvent.KEY_PRESSED?Event.KEY_ACTION : Event.KEY_ACTION_RELEASE);
}
int keyCode = ke.getKeyCode();
if (keyCode == KeyEvent.VK_SHIFT ||keyCode == KeyEvent.VK_CONTROL ||keyCode == KeyEvent.VK_ALT)
{
return null;
}
return new Event(src, ke.getWhen(), newid, 0, 0,Event.getOldEventKey(ke),(ke.getModifiers() & ~InputEvent.BUTTON1_MASK));
case MouseEvent.MOUSE_PRESSED:
case MouseEvent.MOUSE_RELEASED:
case MouseEvent.MOUSE_MOVED:
case MouseEvent.MOUSE_DRAGGED:
case MouseEvent.MOUSE_ENTERED:
case MouseEvent.MOUSE_EXITED:
MouseEvent me = (MouseEvent)this;
Event olde = new Event(src, me.getWhen(), newid,me.getX(), me.getY(), 0,(me.getModifiers() & ~InputEvent.BUTTON1_MASK));
olde.clickCount = me.getClickCount();
return olde;
case FocusEvent.FOCUS_GAINED:
return new Event(src, Event.GOT_FOCUS, null);
case FocusEvent.FOCUS_LOST:
return new Event(src, Event.LOST_FOCUS, null);
case WindowEvent.WINDOW_CLOSING:
case WindowEvent.WINDOW_ICONIFIED:
case WindowEvent.WINDOW_DEICONIFIED:
return new Event(src, newid, null);
case ComponentEvent.COMPONENT_MOVED:
if (src instanceof Frame || src instanceof Dialog)
{
Point p = ((Component)src).getLocation();
return new Event(src, 0, Event.WINDOW_MOVED, p.x, p.y, 0, 0);
}
break;
case ActionEvent.ACTION_PERFORMED:
ActionEvent ae = (ActionEvent)this;
String cmd;
if (src instanceof Button)
{
cmd = ((Button)src).getLabel();
}
else if (src instanceof MenuItem)
{
cmd = ((MenuItem)src).getLabel();
}
else
{
cmd = ae.getActionCommand();
}
return new Event(src, 0, newid, 0, 0, 0, ae.getModifiers(), cmd);
case ItemEvent.ITEM_STATE_CHANGED:
ItemEvent ie = (ItemEvent)this;
Object arg;
if (src instanceof List)
{
newid = (ie.getStateChange() == ItemEvent.SELECTED?Event.LIST_SELECT : Event.LIST_DESELECT);
arg = ie.getItem();
}
else
{
newid = Event.ACTION_EVENT;
if (src instanceof Choice)
{
arg = ie.getItem();
}
else
{
arg = Boolean.valueOf(ie.getStateChange() == ItemEvent.SELECTED);
}
}
return new Event(src, newid, arg);
case AdjustmentEvent.ADJUSTMENT_VALUE_CHANGED:
AdjustmentEvent aje = (AdjustmentEvent)this;
switch(aje.getAdjustmentType())
{
case AdjustmentEvent.UNIT_INCREMENT:
newid = Event.SCROLL_LINE_DOWN;
break;
case AdjustmentEvent.UNIT_DECREMENT:
newid = Event.SCROLL_LINE_UP;
break;
case AdjustmentEvent.BLOCK_INCREMENT:
newid = Event.SCROLL_PAGE_DOWN;
break;
case AdjustmentEvent.BLOCK_DECREMENT:
newid = Event.SCROLL_PAGE_UP;
break;
case AdjustmentEvent.TRACK:
if (aje.getValueIsAdjusting())
{
newid = Event.SCROLL_ABSOLUTE;
}
else
{
newid = Event.SCROLL_END;
}
break;
default:
return null;
}
return new Event(src, newid, Integer.valueOf(aje.getValue()));
default:
}
return null;
}
void copyPrivateDataInto(AWTEvent that)
{
that.bdata = this.bdata;
if (this instanceof InputEvent && that instanceof InputEvent)
{
Field field = get_InputEvent_CanAccessSystemClipboard();
if (field != null)
{
try
{
boolean b = field.getBoolean(this);
field.setBoolean(that, b);
}
catch(IllegalAccessException e)
{
}
}
}
that.isSystemGenerated = this.isSystemGenerated;
}
void dispatched()
{
if (this instanceof InputEvent)
{
Field field = get_InputEvent_CanAccessSystemClipboard();
if (field != null)
{
try
{
field.setBoolean(this, false);
}
catch(IllegalAccessException e)
{
}
}
}
}
}
