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.dnd;
27
28 /**
29 * This class contains constant values representing
30 * the type of action(s) to be performed by a Drag and Drop operation.
31 * @version 1.26, 05/05/07
32 * @since 1.2
33 */
34
35 public final class DnDConstants {
36
37 private DnDConstants() {
38 } // define null private constructor.
39
40 /**
41 * An <code>int</code> representing no action.
42 */
43 public static final int ACTION_NONE = 0x0;
44
45 /**
46 * An <code>int</code> representing a "copy" action.
47 */
48 public static final int ACTION_COPY = 0x1;
49
50 /**
51 * An <code>int</code> representing a "move" action.
52 */
53 public static final int ACTION_MOVE = 0x2;
54
55 /**
56 * An <code>int</code> representing a "copy" or
57 * "move" action.
58 */
59 public static final int ACTION_COPY_OR_MOVE = ACTION_COPY
60 | ACTION_MOVE;
61
62 /**
63 * An <code>int</code> representing a "link" action.
64 *
65 * The link verb is found in many, if not all native DnD platforms, and the
66 * actual interpretation of LINK semantics is both platform
67 * and application dependent. Broadly speaking, the
68 * semantic is "do not copy, or move the operand, but create a reference
69 * to it". Defining the meaning of "reference" is where ambiguity is
70 * introduced.
71 *
72 * The verb is provided for completeness, but its use is not recommended
73 * for DnD operations between logically distinct applications where
74 * misinterpretation of the operations semantics could lead to confusing
75 * results for the user.
76 */
77
78 public static final int ACTION_LINK = 0x40000000;
79
80 /**
81 * An <code>int</code> representing a "reference"
82 * action (synonym for ACTION_LINK).
83 */
84 public static final int ACTION_REFERENCE = ACTION_LINK;
85
86 }
|