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/*
* Copyright 1999-2008 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.Dimension;
import java.awt.IllegalComponentStateException;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
/**
* The CanvasViewEventCatcher class is used to track events on a Canvas3D that
* may cause view matries to change.
*
*/
class CanvasViewEventCatcher extends ComponentAdapter {
// The canvas associated with this event catcher
private Canvas3D canvas;
private static final boolean DEBUG = false;
CanvasViewEventCatcher(Canvas3D c) {
canvas = c;
}
@Override
public void componentResized(ComponentEvent e) {
if (DEBUG) {
System.err.println("Component resized " + e);
}
if(e.getComponent() == canvas ) {
if (DEBUG) {
System.err.println("It is canvas!");
}
synchronized(canvas) {
synchronized (canvas.dirtyMaskLock) {
canvas.cvDirtyMask[0] |= Canvas3D.MOVED_OR_RESIZED_DIRTY;
canvas.cvDirtyMask[1] |= Canvas3D.MOVED_OR_RESIZED_DIRTY;
}
canvas.resizeGraphics2D = true;
}
// see comment below
try {
Dimension size = canvas.getSize();
canvas.newSize = new Dimension((int)(size.getWidth()*canvas.xscale), (int)(size.getHeight()*canvas.yscale));
canvas.newPosition = canvas.getLocationOnScreen();
} catch (IllegalComponentStateException ex) {}
}
}
@Override
public void componentMoved(ComponentEvent e) {
if (DEBUG) {
System.err.println("Component moved " + e);
}
synchronized(canvas) {
synchronized (canvas.dirtyMaskLock) {
canvas.cvDirtyMask[0] |= Canvas3D.MOVED_OR_RESIZED_DIRTY;
canvas.cvDirtyMask[1] |= Canvas3D.MOVED_OR_RESIZED_DIRTY;
}
}
// Can't sync. with canvas lock since canvas.getLocationOnScreen()
// required Component lock. The order is reverse of
// removeNotify() lock sequence which required Component lock
// first, then canvas lock in removeComponentListener()
try {
Dimension size = canvas.getSize();
canvas.newSize = new Dimension((int)(size.getWidth()*canvas.xscale), (int)(size.getHeight()*canvas.yscale));
canvas.newPosition = canvas.getLocationOnScreen();
} catch (IllegalComponentStateException ex) {}
}
}
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