/*

 * Copyright (c) 1995, 2005, 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.peer;

import java.awt.*;

/**

 * The peer interface for {@link Container}. This is the parent interface

 * for all container like widgets.

 *

 * The peer interfaces are intended only for use in porting

 * the AWT. They are not intended for use by application

 * developers, and developers should not implement peers

 * nor invoke any of the peer methods directly on the peer

 * instances.

 */

public interface ContainerPeer extends ComponentPeer {

    /**

     * Returns the insets of this container. Insets usually is the space that

     * is occupied by things like borders.

     *

     * @return the insets of this container

     */

    Insets getInsets();

    /**

     * Notifies the peer that validation of the component tree is about to

     * begin.

     *

     * @see Container#validate()

     */

    void beginValidate();

    /**

     * Notifies the peer that validation of the component tree is finished.

     *

     * @see Container#validate()

     */

    void endValidate();

    /**

     * Notifies the peer that layout is about to begin. This is called

     * before the container itself and its children are laid out.

     *

     * @see Container#validateTree()

     */

    void beginLayout();

    /**

     * Notifies the peer that layout is finished. This is called after the

     * container and its children have been laid out.

     *

     * @see Container#validateTree()

     */

    void endLayout();

}