/*

 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package java.awt.dnd;

import java.lang.annotation.Native;

/**

 * This class contains constant values representing

 * the type of action(s) to be performed by a Drag and Drop operation.

 * @since 1.2

 */

public final class DnDConstants {

    private DnDConstants() {} // define null private constructor.

    /**

     * An <code>int</code> representing no action.

     */

    @Native public static final int ACTION_NONE         = 0x0;

    /**

     * An <code>int</code> representing a &quot;copy&quot; action.

     */

    @Native public static final int ACTION_COPY         = 0x1;

    /**

     * An <code>int</code> representing a &quot;move&quot; action.

     */

    @Native public static final int ACTION_MOVE         = 0x2;

    /**

     * An <code>int</code> representing a &quot;copy&quot; or

     * "move" action.

     */

    @Native public static final int ACTION_COPY_OR_MOVE = ACTION_COPY | ACTION_MOVE;

    /**

     * An <code>int</code> representing a &quot;link&quot; action.

     *

     * The link verb is found in many, if not all native DnD platforms, and the

     * actual interpretation of LINK semantics is both platform

     * and application dependent. Broadly speaking, the

     * semantic is "do not copy, or move the operand, but create a reference

     * to it". Defining the meaning of "reference" is where ambiguity is

     * introduced.

     *

     * The verb is provided for completeness, but its use is not recommended

     * for DnD operations between logically distinct applications where

     * misinterpretation of the operations semantics could lead to confusing

     * results for the user.

     */

    @Native public static final int ACTION_LINK         = 0x40000000;

    /**

     * An <code>int</code> representing a &quot;reference&quot;

     * action (synonym for ACTION_LINK).

     */

    @Native public static final int ACTION_REFERENCE    = ACTION_LINK;

}