104 lines
4.1 KiB
Java
104 lines
4.1 KiB
Java
/*
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* Copyright (c) 1998, 2008, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.java.swing.plaf.windows;
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import javax.swing.DefaultDesktopManager;
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import javax.swing.JInternalFrame;
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import javax.swing.JLayeredPane;
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import java.awt.Component;
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import java.awt.Container;
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import java.awt.Dimension;
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import java.beans.PropertyVetoException;
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import java.util.Vector;
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import java.lang.ref.WeakReference;
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/**
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* This class implements a DesktopManager which more closely follows
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* the MDI model than the DefaultDesktopManager. Unlike the
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* DefaultDesktopManager policy, MDI requires that the selected
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* and activated child frames are the same, and that that frame
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* always be the top-most window.
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* <p>
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* The maximized state is managed by the DesktopManager with MDI,
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* instead of just being a property of the individual child frame.
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* This means that if the currently selected window is maximized
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* and another window is selected, that new window will be maximized.
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*
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* @see javax.swing.DefaultDesktopManager
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* @author Thomas Ball
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*/
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public class WindowsDesktopManager extends DefaultDesktopManager
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implements java.io.Serializable, javax.swing.plaf.UIResource {
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/* The frame which is currently selected/activated.
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* We store this value to enforce MDI's single-selection model.
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*/
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private WeakReference<JInternalFrame> currentFrameRef;
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public void activateFrame(JInternalFrame f) {
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JInternalFrame currentFrame = currentFrameRef != null ?
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currentFrameRef.get() : null;
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try {
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super.activateFrame(f);
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if (currentFrame != null && f != currentFrame) {
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// If the current frame is maximized, transfer that
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// attribute to the frame being activated.
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if (currentFrame.isMaximum() &&
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(f.getClientProperty("JInternalFrame.frameType") !=
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"optionDialog") ) {
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//Special case. If key binding was used to select next
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//frame instead of minimizing the icon via the minimize
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//icon.
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if (!currentFrame.isIcon()) {
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currentFrame.setMaximum(false);
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if (f.isMaximizable()) {
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if (!f.isMaximum()) {
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f.setMaximum(true);
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} else if (f.isMaximum() && f.isIcon()) {
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f.setIcon(false);
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} else {
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f.setMaximum(false);
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}
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}
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}
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}
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if (currentFrame.isSelected()) {
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currentFrame.setSelected(false);
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}
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}
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if (!f.isSelected()) {
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f.setSelected(true);
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}
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} catch (PropertyVetoException e) {}
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if (f != currentFrame) {
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currentFrameRef = new WeakReference<JInternalFrame>(f);
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}
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}
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}
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