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| 1 | +/* | |
| 2 | + * Copyright (c) 1997, 2002, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package javax.swing; | |
| 27 | + | |
| 28 | +/** DesktopManager objects are owned by a JDesktopPane object. They are responsible | |
| 29 | + * for implementing L&F specific behaviors for the JDesktopPane. JInternalFrame | |
| 30 | + * implementations should delegate specific behaviors to the DesktopManager. For | |
| 31 | + * instance, if a JInternalFrame was asked to iconify, it should try: | |
| 32 | + * <PRE> | |
| 33 | + * getDesktopPane().getDesktopManager().iconifyFrame(frame); | |
| 34 | + * </PRE> | |
| 35 | + * This delegation allows each L&F to provide custom behaviors for desktop-specific | |
| 36 | + * actions. (For example, how and where the internal frame's icon would appear.) | |
| 37 | + * <p>This class provides a policy for the various JInternalFrame methods, it is not | |
| 38 | + * meant to be called directly rather the various JInternalFrame methods will call | |
| 39 | + * into the DesktopManager.</p> | |
| 40 | + * | |
| 41 | + * @see JDesktopPane | |
| 42 | + * @see JInternalFrame | |
| 43 | + * @see JInternalFrame.JDesktopIcon | |
| 44 | + * | |
| 45 | + * @author David Kloba | |
| 46 | + */ | |
| 47 | +public interface DesktopManager | |
| 48 | +{ | |
| 49 | + /** If possible, display this frame in an appropriate location. | |
| 50 | + * Normally, this is not called, as the creator of the JInternalFrame | |
| 51 | + * will add the frame to the appropriate parent. | |
| 52 | + */ | |
| 53 | + void openFrame(JInternalFrame f); | |
| 54 | + | |
| 55 | + /** Generally, this call should remove the frame from it's parent. */ | |
| 56 | + void closeFrame(JInternalFrame f); | |
| 57 | + | |
| 58 | + /** Generally, the frame should be resized to match it's parents bounds. */ | |
| 59 | + void maximizeFrame(JInternalFrame f); | |
| 60 | + /** Generally, this indicates that the frame should be restored to it's | |
| 61 | + * size and position prior to a maximizeFrame() call. | |
| 62 | + */ | |
| 63 | + void minimizeFrame(JInternalFrame f); | |
| 64 | + /** Generally, remove this frame from it's parent and add an iconic representation. */ | |
| 65 | + void iconifyFrame(JInternalFrame f); | |
| 66 | + /** Generally, remove any iconic representation that is present and restore the | |
| 67 | + * frame to it's original size and location. | |
| 68 | + */ | |
| 69 | + void deiconifyFrame(JInternalFrame f); | |
| 70 | + | |
| 71 | + /** | |
| 72 | + * Generally, indicate that this frame has focus. This is usually called after | |
| 73 | + * the JInternalFrame's IS_SELECTED_PROPERTY has been set to true. | |
| 74 | + */ | |
| 75 | + void activateFrame(JInternalFrame f); | |
| 76 | + | |
| 77 | + /** | |
| 78 | + * Generally, indicate that this frame has lost focus. This is usually called | |
| 79 | + * after the JInternalFrame's IS_SELECTED_PROPERTY has been set to false. | |
| 80 | + */ | |
| 81 | + void deactivateFrame(JInternalFrame f); | |
| 82 | + | |
| 83 | + /** This method is normally called when the user has indicated that | |
| 84 | + * they will begin dragging a component around. This method should be called | |
| 85 | + * prior to any dragFrame() calls to allow the DesktopManager to prepare any | |
| 86 | + * necessary state. Normally <b>f</b> will be a JInternalFrame. | |
| 87 | + */ | |
| 88 | + void beginDraggingFrame(JComponent f); | |
| 89 | + | |
| 90 | + /** The user has moved the frame. Calls to this method will be preceded by calls | |
| 91 | + * to beginDraggingFrame(). | |
| 92 | + * Normally <b>f</b> will be a JInternalFrame. | |
| 93 | + */ | |
| 94 | + void dragFrame(JComponent f, int newX, int newY); | |
| 95 | + /** This method signals the end of the dragging session. Any state maintained by | |
| 96 | + * the DesktopManager can be removed here. Normally <b>f</b> will be a JInternalFrame. | |
| 97 | + */ | |
| 98 | + void endDraggingFrame(JComponent f); | |
| 99 | + | |
| 100 | + /** This methods is normally called when the user has indicated that | |
| 101 | + * they will begin resizing the frame. This method should be called | |
| 102 | + * prior to any resizeFrame() calls to allow the DesktopManager to prepare any | |
| 103 | + * necessary state. Normally <b>f</b> will be a JInternalFrame. | |
| 104 | + */ | |
| 105 | + void beginResizingFrame(JComponent f, int direction); | |
| 106 | + /** The user has resized the component. Calls to this method will be preceded by calls | |
| 107 | + * to beginResizingFrame(). | |
| 108 | + * Normally <b>f</b> will be a JInternalFrame. | |
| 109 | + */ | |
| 110 | + void resizeFrame(JComponent f, int newX, int newY, int newWidth, int newHeight); | |
| 111 | + /** This method signals the end of the resize session. Any state maintained by | |
| 112 | + * the DesktopManager can be removed here. Normally <b>f</b> will be a JInternalFrame. | |
| 113 | + */ | |
| 114 | + void endResizingFrame(JComponent f); | |
| 115 | + | |
| 116 | + /** This is a primitive reshape method.*/ | |
| 117 | + void setBoundsForFrame(JComponent f, int newX, int newY, int newWidth, int newHeight); | |
| 118 | +} | |