/* * Copyright (c) 1997, 2002, 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 javax.swing; /** DesktopManager objects are owned by a JDesktopPane object. They are responsible  * for implementing L&F specific behaviors for the JDesktopPane. JInternalFrame  * implementations should delegate specific behaviors to the DesktopManager. For  * instance, if a JInternalFrame was asked to iconify, it should try:  * <PRE>  *    getDesktopPane().getDesktopManager().iconifyFrame(frame);  * </PRE>  * This delegation allows each L&F to provide custom behaviors for desktop-specific  * actions. (For example, how and where the internal frame's icon would appear.)  * <p>This class provides a policy for the various JInternalFrame methods, it is not  * meant to be called directly rather the various JInternalFrame methods will call  * into the DesktopManager.</p>  *  * @see JDesktopPane  * @see JInternalFrame  * @see JInternalFrame.JDesktopIcon  *  * @author David Kloba  */public interface DesktopManager{    /** If possible, display this frame in an appropriate location.      * Normally, this is not called, as the creator of the JInternalFrame      * will add the frame to the appropriate parent.      */    void openFrame(JInternalFrame f);     /** Generally, this call should remove the frame from it's parent. */    void closeFrame(JInternalFrame f);     /** Generally, the frame should be resized to match it's parents bounds. */    void maximizeFrame(JInternalFrame f);    /** Generally, this indicates that the frame should be restored to it's      * size and position prior to a maximizeFrame() call.      */    void minimizeFrame(JInternalFrame f);    /** Generally, remove this frame from it's parent and add an iconic representation. */    void iconifyFrame(JInternalFrame f);    /** Generally, remove any iconic representation that is present and restore the      * frame to it's original size and location.      */    void deiconifyFrame(JInternalFrame f);     /**     * Generally, indicate that this frame has focus. This is usually called after     * the JInternalFrame's IS_SELECTED_PROPERTY has been set to true.     */    void activateFrame(JInternalFrame f);     /**     * Generally, indicate that this frame has lost focus. This is usually called     * after the JInternalFrame's IS_SELECTED_PROPERTY has been set to false.     */    void deactivateFrame(JInternalFrame f);     /** This method is normally called when the user has indicated that      * they will begin dragging a component around. This method should be called      * prior to any dragFrame() calls to allow the DesktopManager to prepare any      * necessary state. Normally <b>f</b> will be a JInternalFrame.      */    void beginDraggingFrame(JComponent f);     /** The user has moved the frame. Calls to this method will be preceded by calls      * to beginDraggingFrame().      *  Normally <b>f</b> will be a JInternalFrame.      */    void dragFrame(JComponent f, int newX, int newY);    /** This method signals the end of the dragging session. Any state maintained by      * the DesktopManager can be removed here.  Normally <b>f</b> will be a JInternalFrame.      */    void endDraggingFrame(JComponent f);     /** This methods is normally called when the user has indicated that      * they will begin resizing the frame. This method should be called      * prior to any resizeFrame() calls to allow the DesktopManager to prepare any      * necessary state.  Normally <b>f</b> will be a JInternalFrame.      */    void beginResizingFrame(JComponent f, int direction);    /** The user has resized the component. Calls to this method will be preceded by calls      * to beginResizingFrame().      *  Normally <b>f</b> will be a JInternalFrame.      */    void resizeFrame(JComponent f, int newX, int newY, int newWidth, int newHeight);    /** This method signals the end of the resize session. Any state maintained by      * the DesktopManager can be removed here.  Normally <b>f</b> will be a JInternalFrame.      */    void endResizingFrame(JComponent f);     /** This is a primitive reshape method.*/    void setBoundsForFrame(JComponent f, int newX, int newY, int newWidth, int newHeight);}