src/java.desktop/share/classes/java/awt/dnd/peer/DragSourceContextPeer.java - master - githubmirror/jdk11u-dev

src/java.desktop/share/classes/java/awt/dnd/peer/DragSourceContextPeer.java

77 строк2 KB

Erik Joelsson

8187443: Forest Consolidation: Move files to unified layout

12 сен 2017, 20:03

12 сен 2017, 20:033789983

/*
 * Copyright (c) 1997, 2014, 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
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package java.awt.dnd.peer;

import java.awt.Cursor;
import java.awt.Image;
import java.awt.Point;
import java.awt.dnd.DragSourceContext;
import java.awt.dnd.InvalidDnDOperationException;


/**
 * <p>
 * This interface is supplied by the underlying window system platform to
 * expose the behaviors of the Drag and Drop system to an originator of
 * the same
 * </p>
 *
 * @since 1.2
 *
 */

public interface DragSourceContextPeer {

    /**
     * start a drag
     * @param dsc the DragSourceContext
     * @param c the cursor
     * @param dragImage the image to be dragged
     * @param imageOffset the offset
     */

    void startDrag(DragSourceContext dsc, Cursor c, Image dragImage, Point imageOffset) throws InvalidDnDOperationException;

    /**
     * return the current drag cursor
     * @return the current drag cursor
     */

    Cursor getCursor();

    /**
     * set the current drag cursor
     * @param c the cursor
     */

    void setCursor(Cursor c) throws InvalidDnDOperationException;

    /**
     * notify the peer that the Transferables DataFlavors have changed
     */

    void transferablesFlavorsChanged();
}