01: /*
02: * $RCSfile: DrawingSurfaceObject.java,v $
03: *
04: * Copyright 1999-2008 Sun Microsystems, Inc. All Rights Reserved.
05: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
06: *
07: * This code is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU General Public License version 2 only, as
09: * published by the Free Software Foundation. Sun designates this
10: * particular file as subject to the "Classpath" exception as provided
11: * by Sun in the LICENSE file that accompanied this code.
12: *
13: * This code is distributed in the hope that it will be useful, but WITHOUT
14: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16: * version 2 for more details (a copy is included in the LICENSE file that
17: * accompanied this code).
18: *
19: * You should have received a copy of the GNU General Public License version
20: * 2 along with this work; if not, write to the Free Software Foundation,
21: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
22: *
23: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
24: * CA 95054 USA or visit www.sun.com if you need additional information or
25: * have any questions.
26: *
27: * $Revision: 1.5 $
28: * $Date: 2008/02/28 20:17:21 $
29: * $State: Exp $
30: */
31:
32: package javax.media.j3d;
33:
34: /**
35: * The DrawingSurfaceObject class is used to manage native drawing surface
36: */
37:
38: abstract class DrawingSurfaceObject extends Object {
39:
40: Canvas3D canvas;
41: boolean gotDsiLock = false;
42: boolean onScreen;
43:
44: abstract boolean renderLock();
45:
46: abstract void unLock();
47:
48: abstract void getDrawingSurfaceObjectInfo();
49:
50: abstract void invalidate();
51:
52: DrawingSurfaceObject(Canvas3D cv) {
53: canvas = cv;
54: onScreen = !cv.offScreen;
55: }
56:
57: synchronized boolean isLocked() {
58: return gotDsiLock;
59: }
60:
61: synchronized void contextValidated() {
62: canvas.validCtx = true;
63: }
64: }
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