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/*
* Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
package javax.media.j3d;
import java.awt.AWTEvent;
import java.awt.event.FocusEvent;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.util.ArrayList;
/**
* Class that specifies a Behavior wakeup when a specific AWT event occurs.
*/
public final class WakeupOnAWTEvent extends WakeupCriterion {
// different types of WakeupIndexedList that use in BehaviorStructure
static final int COND_IN_BS_LIST = 0;
// total number of different IndexedUnorderedSet types
static final int TOTAL_INDEXED_UNORDER_SET_TYPES = 1;
// one of these two variables must be equal to zero
int AwtId;
long EventMask;
long enableAWTEventTS = 0L;
final ArrayList<AWTEvent> events = new ArrayList<AWTEvent>();
/**
* Constructs a new WakeupOnAWTEvent object that informs the Java 3D
* scheduler to wake up the specified Behavior object whenever the
* specified AWT event occurs.
* @param AWTId the AWT ids that this behavior wishes to intercept
*/
public WakeupOnAWTEvent(int AWTId) {
this.AwtId = AWTId;
this.EventMask = 0L;
WakeupIndexedList.init(this, TOTAL_INDEXED_UNORDER_SET_TYPES);
}
/**
* Constructs a new WakeupOnAWTEvent using Ored EVENT_MASK values.
* @param eventMask the AWT EVENT_MASK values Ored together
*/
public WakeupOnAWTEvent(long eventMask) {
this.EventMask = eventMask;
this.AwtId = 0;
WakeupIndexedList.init(this, TOTAL_INDEXED_UNORDER_SET_TYPES);
}
/**
* Retrieves the array of consecutive AWT event that triggered this wakeup.
* A value of null implies that this event was not the trigger for the
* behavior wakeup.
* @return either null (if not resposible for wakeup) or the array of
* AWTEvents responsible for the wakeup.
*/
public AWTEvent[] getAWTEvent() {
synchronized (events) {
AWTEvent[] eventArray = events.toArray(new AWTEvent[events.size()]);
events.clear();
return eventArray;
}
}
/**
* Sets the AWT event that will cause a behavior wakeup.
* @param event The event causing this wakeup
*/
void addAWTEvent(AWTEvent event) {
synchronized (events) {
events.add(event);
}
this.setTriggered();
}
/**
* This is a callback from BehaviorStructure. It is
* used to add wakeupCondition to behavior structure.
*/
@Override
void addBehaviorCondition(BehaviorStructure bs) {
resetBehaviorCondition(bs);
bs.wakeupOnAWTEvent.add(this);
}
/**
* This is a callback from BehaviorStructure. It is
* used to remove wakeupCondition from behavior structure.
*/
@Override
void removeBehaviorCondition(BehaviorStructure bs) {
bs.wakeupOnAWTEvent.remove(this);
}
/**
* Perform task in addBehaviorCondition() that has to be
* set every time the condition met.
*/
@Override
void resetBehaviorCondition(BehaviorStructure bs) {
if (enableAWTEventTS != bs.awtEventTimestamp) {
if ((AwtId >= FocusEvent.FOCUS_FIRST && AwtId <= FocusEvent.FOCUS_LAST) ||
(EventMask & AWTEvent.FOCUS_EVENT_MASK) != 0) {
behav.universe.enableFocusEvents();
}
if ((AwtId >= KeyEvent.KEY_FIRST && AwtId <= KeyEvent.KEY_LAST) ||
(EventMask & AWTEvent.KEY_EVENT_MASK) != 0) {
behav.universe.enableKeyEvents();
}
if ((AwtId >= MouseEvent.MOUSE_FIRST) &&
(AwtId <= MouseEvent.MOUSE_LAST)) {
if ((AwtId == MouseEvent.MOUSE_DRAGGED) ||
(AwtId == MouseEvent.MOUSE_MOVED)) {
behav.universe.enableMouseMotionEvents();
}
else if (AwtId == MouseEvent.MOUSE_WHEEL) {
behav.universe.enableMouseWheelEvents();
}
else if (AwtId == MouseEvent.MOUSE_CLICKED ||
AwtId == MouseEvent.MOUSE_ENTERED ||
AwtId == MouseEvent.MOUSE_EXITED ||
AwtId == MouseEvent.MOUSE_PRESSED ||
AwtId == MouseEvent.MOUSE_RELEASED) {
behav.universe.enableMouseEvents();
}
} else {
if ((EventMask & AWTEvent.MOUSE_EVENT_MASK) != 0) {
behav.universe.enableMouseEvents();
}
if ((EventMask & AWTEvent.MOUSE_MOTION_EVENT_MASK) != 0) {
behav.universe.enableMouseMotionEvents();
}
if ((EventMask & AWTEvent.MOUSE_WHEEL_EVENT_MASK) != 0) {
behav.universe.enableMouseWheelEvents();
}
}
enableAWTEventTS = bs.awtEventTimestamp;
}
}
}
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