01: /*
02: * Copyright 1997-1999 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun in the LICENSE file that accompanied this code.
10: *
11: * This code is distributed in the hope that it will be useful, but WITHOUT
12: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14: * version 2 for more details (a copy is included in the LICENSE file that
15: * accompanied this code).
16: *
17: * You should have received a copy of the GNU General Public License version
18: * 2 along with this work; if not, write to the Free Software Foundation,
19: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20: *
21: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any questions.
24: */
25:
26: package java.awt;
27:
28: /**
29: * The <code>Transparency</code> interface defines the common transparency
30: * modes for implementing classes.
31: * @version 1.27, 05/05/07
32: */
33: public interface Transparency {
34:
35: /**
36: * Represents image data that is guaranteed to be completely opaque,
37: * meaning that all pixels have an alpha value of 1.0.
38: */
39: public final static int OPAQUE = 1;
40:
41: /**
42: * Represents image data that is guaranteed to be either completely
43: * opaque, with an alpha value of 1.0, or completely transparent,
44: * with an alpha value of 0.0.
45: */
46: public final static int BITMASK = 2;
47:
48: /**
49: * Represents image data that contains or might contain arbitrary
50: * alpha values between and including 0.0 and 1.0.
51: */
52: public final static int TRANSLUCENT = 3;
53:
54: /**
55: * Returns the type of this <code>Transparency</code>.
56: * @return the field type of this <code>Transparency</code>, which is
57: * either OPAQUE, BITMASK or TRANSLUCENT.
58: */
59: public int getTransparency();
60: }
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