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Java example source code file (BasicInternalFrameUI.java)

This example Java source code file (BasicInternalFrameUI.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

awt, basicinternalframetitlepane, basicinternalframeui, bean, componentlistener, dimension, event, gui, insets, javabean, jcomponent, jinternalframe, layoutmanager, north_east, north_west, point, propertyvetoexception, resize_none, south_east, swing

The BasicInternalFrameUI.java Java example source code

/*
 * Copyright (c) 1997, 2013, 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.plaf.basic;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.plaf.*;
import javax.swing.event.*;
import java.beans.*;
import sun.swing.DefaultLookup;
import sun.swing.UIAction;

/**
 * A basic L&F implementation of JInternalFrame.
 *
 * @author David Kloba
 * @author Rich Schiavi
 */
public class BasicInternalFrameUI extends InternalFrameUI
{

    protected JInternalFrame frame;

    private Handler handler;
    protected MouseInputAdapter          borderListener;
    protected PropertyChangeListener     propertyChangeListener;
    protected LayoutManager              internalFrameLayout;
    protected ComponentListener          componentListener;
    protected MouseInputListener         glassPaneDispatcher;
    private InternalFrameListener        internalFrameListener;

    protected JComponent northPane;
    protected JComponent southPane;
    protected JComponent westPane;
    protected JComponent eastPane;

    protected BasicInternalFrameTitlePane titlePane; // access needs this

    private static DesktopManager sharedDesktopManager;
    private boolean componentListenerAdded = false;

    private Rectangle parentBounds;

    private boolean dragging = false;
    private boolean resizing = false;

    /**
     * As of Java 2 platform v1.3 this previously undocumented field is no
     * longer used.
     * Key bindings are now defined by the LookAndFeel, please refer to
     * the key bindings specification for further details.
     *
     * @deprecated As of Java 2 platform v1.3.
     */
    @Deprecated
    protected KeyStroke openMenuKey;

    private boolean keyBindingRegistered = false;
    private boolean keyBindingActive = false;

/////////////////////////////////////////////////////////////////////////////
// ComponentUI Interface Implementation methods
/////////////////////////////////////////////////////////////////////////////
    public static ComponentUI createUI(JComponent b)    {
        return new BasicInternalFrameUI((JInternalFrame)b);
    }

    public BasicInternalFrameUI(JInternalFrame b)   {
        LookAndFeel laf = UIManager.getLookAndFeel();
        if (laf instanceof BasicLookAndFeel) {
            ((BasicLookAndFeel)laf).installAWTEventListener();
        }
    }

    public void installUI(JComponent c)   {

        frame = (JInternalFrame)c;

        installDefaults();
        installListeners();
        installComponents();
        installKeyboardActions();

        LookAndFeel.installProperty(frame, "opaque", Boolean.TRUE);
    }

    public void uninstallUI(JComponent c) {
        if(c != frame)
            throw new IllegalComponentStateException(
                this + " was asked to deinstall() "
                + c + " when it only knows about "
                + frame + ".");

        uninstallKeyboardActions();
        uninstallComponents();
        uninstallListeners();
        uninstallDefaults();
        updateFrameCursor();
        handler = null;
        frame = null;
    }

    protected void installDefaults(){
        Icon frameIcon = frame.getFrameIcon();
        if (frameIcon == null || frameIcon instanceof UIResource) {
            frame.setFrameIcon(UIManager.getIcon("InternalFrame.icon"));
        }

        // Enable the content pane to inherit background color from its
        // parent by setting its background color to null.
        Container contentPane = frame.getContentPane();
        if (contentPane != null) {
          Color bg = contentPane.getBackground();
          if (bg instanceof UIResource)
            contentPane.setBackground(null);
        }
        frame.setLayout(internalFrameLayout = createLayoutManager());
        frame.setBackground(UIManager.getLookAndFeelDefaults().getColor("control"));

        LookAndFeel.installBorder(frame, "InternalFrame.border");

    }
    protected void installKeyboardActions(){
        createInternalFrameListener();
        if (internalFrameListener != null) {
            frame.addInternalFrameListener(internalFrameListener);
        }

        LazyActionMap.installLazyActionMap(frame, BasicInternalFrameUI.class,
            "InternalFrame.actionMap");
    }

    static void loadActionMap(LazyActionMap map) {
        map.put(new UIAction("showSystemMenu") {
            public void actionPerformed(ActionEvent evt) {
                JInternalFrame iFrame = (JInternalFrame)evt.getSource();
                if (iFrame.getUI() instanceof BasicInternalFrameUI) {
                    JComponent comp = ((BasicInternalFrameUI)
                        iFrame.getUI()).getNorthPane();
                    if (comp instanceof BasicInternalFrameTitlePane) {
                        ((BasicInternalFrameTitlePane)comp).
                            showSystemMenu();
                    }
                }
            }

            public boolean isEnabled(Object sender){
                if (sender instanceof JInternalFrame) {
                    JInternalFrame iFrame = (JInternalFrame)sender;
                    if (iFrame.getUI() instanceof BasicInternalFrameUI) {
                        return ((BasicInternalFrameUI)iFrame.getUI()).
                            isKeyBindingActive();
                    }
                }
                return false;
            }
        });

        // Set the ActionMap's parent to the Auditory Feedback Action Map
        BasicLookAndFeel.installAudioActionMap(map);
    }

    protected void installComponents(){
        setNorthPane(createNorthPane(frame));
        setSouthPane(createSouthPane(frame));
        setEastPane(createEastPane(frame));
        setWestPane(createWestPane(frame));
    }

    /**
     * @since 1.3
     */
    protected void installListeners() {
        borderListener = createBorderListener(frame);
        propertyChangeListener = createPropertyChangeListener();
        frame.addPropertyChangeListener(propertyChangeListener);
        installMouseHandlers(frame);
        glassPaneDispatcher = createGlassPaneDispatcher();
        if (glassPaneDispatcher != null) {
            frame.getGlassPane().addMouseListener(glassPaneDispatcher);
            frame.getGlassPane().addMouseMotionListener(glassPaneDispatcher);
        }
        componentListener =  createComponentListener();
        if (frame.getParent() != null) {
          parentBounds = frame.getParent().getBounds();
        }
        if ((frame.getParent() != null) && !componentListenerAdded) {
            frame.getParent().addComponentListener(componentListener);
            componentListenerAdded = true;
        }
    }

    // Provide a FocusListener to listen for a WINDOW_LOST_FOCUS event,
    // so that a resize can be cancelled if the focus is lost while resizing
    // when an Alt-Tab, modal dialog popup, iconify, dispose, or remove
    // of the internal frame occurs.
    private WindowFocusListener getWindowFocusListener(){
        return getHandler();
    }

    // Cancel a resize in progress by calling finishMouseReleased().
    private void cancelResize() {
        if (resizing) {
            if (borderListener instanceof BorderListener) {
                ((BorderListener)borderListener).finishMouseReleased();
            }
        }
    }

    private Handler getHandler() {
        if (handler == null) {
            handler = new Handler();
        }
        return handler;
    }

    InputMap getInputMap(int condition) {
        if (condition == JComponent.WHEN_IN_FOCUSED_WINDOW) {
            return createInputMap(condition);
        }
        return null;
    }

    InputMap createInputMap(int condition) {
        if (condition == JComponent.WHEN_IN_FOCUSED_WINDOW) {
            Object[] bindings = (Object[])DefaultLookup.get(
                    frame, this, "InternalFrame.windowBindings");

            if (bindings != null) {
                return LookAndFeel.makeComponentInputMap(frame, bindings);
            }
        }
        return null;
    }

    protected void uninstallDefaults() {
        Icon frameIcon = frame.getFrameIcon();
        if (frameIcon instanceof UIResource) {
            frame.setFrameIcon(null);
        }
        internalFrameLayout = null;
        frame.setLayout(null);
        LookAndFeel.uninstallBorder(frame);
    }

    protected void uninstallComponents(){
        setNorthPane(null);
        setSouthPane(null);
        setEastPane(null);
        setWestPane(null);
        if(titlePane != null) {
            titlePane.uninstallDefaults();
        }
        titlePane = null;
    }

    /**
     * @since 1.3
     */
    protected void uninstallListeners() {
        if ((frame.getParent() != null) && componentListenerAdded) {
            frame.getParent().removeComponentListener(componentListener);
            componentListenerAdded = false;
        }
        componentListener = null;
      if (glassPaneDispatcher != null) {
          frame.getGlassPane().removeMouseListener(glassPaneDispatcher);
          frame.getGlassPane().removeMouseMotionListener(glassPaneDispatcher);
          glassPaneDispatcher = null;
      }
      deinstallMouseHandlers(frame);
      frame.removePropertyChangeListener(propertyChangeListener);
      propertyChangeListener = null;
      borderListener = null;
    }

    protected void uninstallKeyboardActions(){
        if (internalFrameListener != null) {
            frame.removeInternalFrameListener(internalFrameListener);
        }
        internalFrameListener = null;

        SwingUtilities.replaceUIInputMap(frame, JComponent.
                                         WHEN_IN_FOCUSED_WINDOW, null);
        SwingUtilities.replaceUIActionMap(frame, null);

    }

    void updateFrameCursor() {
        if (resizing) {
            return;
        }
        Cursor s = frame.getLastCursor();
        if (s == null) {
            s = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
        }
        frame.setCursor(s);
    }

    protected LayoutManager createLayoutManager(){
        return getHandler();
    }

    protected PropertyChangeListener createPropertyChangeListener(){
        return getHandler();
    }



    public Dimension getPreferredSize(JComponent x)    {
        if(frame == x)
            return frame.getLayout().preferredLayoutSize(x);
        return new Dimension(100, 100);
    }

    public Dimension getMinimumSize(JComponent x)  {
        if(frame == x) {
            return frame.getLayout().minimumLayoutSize(x);
        }
        return new Dimension(0, 0);
    }

    public Dimension getMaximumSize(JComponent x) {
        return new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE);
    }



    /**
      * Installs necessary mouse handlers on <code>newPane
      * and adds it to the frame.
      * Reverse process for the <code>currentPane.
      */
    protected void replacePane(JComponent currentPane, JComponent newPane) {
        if(currentPane != null) {
            deinstallMouseHandlers(currentPane);
            frame.remove(currentPane);
        }
        if(newPane != null) {
           frame.add(newPane);
           installMouseHandlers(newPane);
        }
    }

    protected void deinstallMouseHandlers(JComponent c) {
      c.removeMouseListener(borderListener);
      c.removeMouseMotionListener(borderListener);
    }

    protected void installMouseHandlers(JComponent c) {
      c.addMouseListener(borderListener);
      c.addMouseMotionListener(borderListener);
    }

    protected JComponent createNorthPane(JInternalFrame w) {
      titlePane = new BasicInternalFrameTitlePane(w);
      return titlePane;
    }


    protected JComponent createSouthPane(JInternalFrame w) {
        return null;
    }

    protected JComponent createWestPane(JInternalFrame w) {
        return null;
    }

    protected JComponent createEastPane(JInternalFrame w) {
        return null;
    }


    protected MouseInputAdapter createBorderListener(JInternalFrame w) {
        return new BorderListener();
    }

    protected void createInternalFrameListener(){
        internalFrameListener = getHandler();
    }

    protected final boolean isKeyBindingRegistered(){
      return keyBindingRegistered;
    }

    protected final void setKeyBindingRegistered(boolean b){
      keyBindingRegistered = b;
    }

    public final boolean isKeyBindingActive(){
      return keyBindingActive;
    }

    protected final void setKeyBindingActive(boolean b){
      keyBindingActive = b;
    }


    protected void setupMenuOpenKey(){
        // PENDING(hania): Why are these WHEN_IN_FOCUSED_WINDOWs? Shouldn't
        // they be WHEN_ANCESTOR_OF_FOCUSED_COMPONENT?
        // Also, no longer registering on the desktopicon, the previous
        // action did nothing.
        InputMap map = getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
        SwingUtilities.replaceUIInputMap(frame,
                                      JComponent.WHEN_IN_FOCUSED_WINDOW, map);
        //ActionMap actionMap = getActionMap();
        //SwingUtilities.replaceUIActionMap(frame, actionMap);
    }

    protected void setupMenuCloseKey(){
    }

    public JComponent getNorthPane() {
        return northPane;
    }

    public void setNorthPane(JComponent c) {
        if (northPane != null &&
                northPane instanceof BasicInternalFrameTitlePane) {
            ((BasicInternalFrameTitlePane)northPane).uninstallListeners();
        }
        replacePane(northPane, c);
        northPane = c;
        if (c instanceof BasicInternalFrameTitlePane) {
          titlePane = (BasicInternalFrameTitlePane)c;
        }
    }

    public JComponent getSouthPane() {
        return southPane;
    }

    public void setSouthPane(JComponent c) {
        southPane = c;
    }

    public JComponent getWestPane() {
        return westPane;
    }

    public void setWestPane(JComponent c) {
        westPane = c;
    }

    public JComponent getEastPane() {
        return eastPane;
    }

    public void setEastPane(JComponent c) {
        eastPane = c;
    }

    public class InternalFramePropertyChangeListener implements
        PropertyChangeListener {
        // NOTE: This class exists only for backward compatibility. All
        // its functionality has been moved into Handler. If you need to add
        // new functionality add it to the Handler, but make sure this
        // class calls into the Handler.
        /**
         * Detects changes in state from the JInternalFrame and handles
         * actions.
         */
        public void propertyChange(PropertyChangeEvent evt) {
            getHandler().propertyChange(evt);
        }
    }

  public class InternalFrameLayout implements LayoutManager {
    // NOTE: This class exists only for backward compatibility. All
    // its functionality has been moved into Handler. If you need to add
    // new functionality add it to the Handler, but make sure this
    // class calls into the Handler.
    public void addLayoutComponent(String name, Component c) {
        getHandler().addLayoutComponent(name, c);
    }

    public void removeLayoutComponent(Component c) {
        getHandler().removeLayoutComponent(c);
    }

    public Dimension preferredLayoutSize(Container c)  {
        return getHandler().preferredLayoutSize(c);
    }

    public Dimension minimumLayoutSize(Container c) {
        return getHandler().minimumLayoutSize(c);
    }

    public void layoutContainer(Container c) {
        getHandler().layoutContainer(c);
    }
  }

/// DesktopManager methods
    /** Returns the proper DesktopManager. Calls getDesktopPane() to
      * find the JDesktop component and returns the desktopManager from
      * it. If this fails, it will return a default DesktopManager that
      * should work in arbitrary parents.
      */
    protected DesktopManager getDesktopManager() {
        if(frame.getDesktopPane() != null
           && frame.getDesktopPane().getDesktopManager() != null)
            return frame.getDesktopPane().getDesktopManager();
        if(sharedDesktopManager == null)
          sharedDesktopManager = createDesktopManager();
        return sharedDesktopManager;
    }

    protected DesktopManager createDesktopManager(){
      return new DefaultDesktopManager();
    }

    /**
     * This method is called when the user wants to close the frame.
     * The <code>playCloseSound Action is fired.
     * This action is delegated to the desktopManager.
     */
    protected void closeFrame(JInternalFrame f) {
        // Internal Frame Auditory Cue Activation
        BasicLookAndFeel.playSound(frame,"InternalFrame.closeSound");
        // delegate to desktop manager
        getDesktopManager().closeFrame(f);
    }

    /**
     * This method is called when the user wants to maximize the frame.
     * The <code>playMaximizeSound Action is fired.
     * This action is delegated to the desktopManager.
     */
    protected void maximizeFrame(JInternalFrame f) {
        // Internal Frame Auditory Cue Activation
        BasicLookAndFeel.playSound(frame,"InternalFrame.maximizeSound");
        // delegate to desktop manager
        getDesktopManager().maximizeFrame(f);
    }

    /**
     * This method is called when the user wants to minimize the frame.
     * The <code>playRestoreDownSound Action is fired.
     * This action is delegated to the desktopManager.
     */
    protected void minimizeFrame(JInternalFrame f) {
        // Internal Frame Auditory Cue Activation
        if ( ! f.isIcon() ) {
            // This method seems to regularly get called after an
            // internal frame is iconified. Don't play this sound then.
            BasicLookAndFeel.playSound(frame,"InternalFrame.restoreDownSound");
        }
        // delegate to desktop manager
        getDesktopManager().minimizeFrame(f);
    }

    /**
     * This method is called when the user wants to iconify the frame.
     * The <code>playMinimizeSound Action is fired.
     * This action is delegated to the desktopManager.
     */
    protected void iconifyFrame(JInternalFrame f) {
        // Internal Frame Auditory Cue Activation
        BasicLookAndFeel.playSound(frame, "InternalFrame.minimizeSound");
        // delegate to desktop manager
        getDesktopManager().iconifyFrame(f);
    }

    /**
     * This method is called when the user wants to deiconify the frame.
     * The <code>playRestoreUpSound Action is fired.
     * This action is delegated to the desktopManager.
     */
    protected void deiconifyFrame(JInternalFrame f) {
        // Internal Frame Auditory Cue Activation
        if ( ! f.isMaximum() ) {
            // This method seems to regularly get called after an
            // internal frame is maximized. Don't play this sound then.
            BasicLookAndFeel.playSound(frame, "InternalFrame.restoreUpSound");
        }
        // delegate to desktop manager
        getDesktopManager().deiconifyFrame(f);
    }

    /** This method is called when the frame becomes selected.
      * This action is delegated to the desktopManager.
      */
    protected void activateFrame(JInternalFrame f) {
        getDesktopManager().activateFrame(f);
    }
    /** This method is called when the frame is no longer selected.
      * This action is delegated to the desktopManager.
      */
    protected void deactivateFrame(JInternalFrame f) {
        getDesktopManager().deactivateFrame(f);
    }

    /////////////////////////////////////////////////////////////////////////
    /// Border Listener Class
    /////////////////////////////////////////////////////////////////////////
    /**
     * Listens for border adjustments.
     */
    protected class BorderListener extends MouseInputAdapter implements SwingConstants
    {
        // _x & _y are the mousePressed location in absolute coordinate system
        int _x, _y;
        // __x & __y are the mousePressed location in source view's coordinate system
        int __x, __y;
        Rectangle startingBounds;
        int resizeDir;


        protected final int RESIZE_NONE  = 0;
        private boolean discardRelease = false;

        int resizeCornerSize = 16;

        public void mouseClicked(MouseEvent e) {
            if(e.getClickCount() > 1 && e.getSource() == getNorthPane()) {
                if(frame.isIconifiable() && frame.isIcon()) {
                    try { frame.setIcon(false); } catch (PropertyVetoException e2) { }
                } else if(frame.isMaximizable()) {
                    if(!frame.isMaximum())
                        try { frame.setMaximum(true); } catch (PropertyVetoException e2) { }
                    else
                        try { frame.setMaximum(false); } catch (PropertyVetoException e3) { }
                }
            }
        }

        // Factor out finishMouseReleased() from mouseReleased(), so that
        // it can be called by cancelResize() without passing it a null
        // MouseEvent.
        void finishMouseReleased() {
           if (discardRelease) {
             discardRelease = false;
             return;
          }
            if (resizeDir == RESIZE_NONE) {
                getDesktopManager().endDraggingFrame(frame);
                dragging = false;
            } else {
                // Remove the WindowFocusListener for handling a
                // WINDOW_LOST_FOCUS event with a cancelResize().
                Window windowAncestor =
                    SwingUtilities.getWindowAncestor(frame);
                if (windowAncestor != null) {
                    windowAncestor.removeWindowFocusListener(
                        getWindowFocusListener());
                }
                Container c = frame.getTopLevelAncestor();
                if (c instanceof RootPaneContainer) {
                    Component glassPane = ((RootPaneContainer)c).getGlassPane();
                    glassPane.setCursor(Cursor.getPredefinedCursor(
                        Cursor.DEFAULT_CURSOR));
                    glassPane.setVisible(false);
                }
                getDesktopManager().endResizingFrame(frame);
                resizing = false;
                updateFrameCursor();
            }
            _x = 0;
            _y = 0;
            __x = 0;
            __y = 0;
            startingBounds = null;
            resizeDir = RESIZE_NONE;
            // Set discardRelease to true, so that only a mousePressed()
            // which sets it to false, will allow entry to the above code
            // for finishing a resize.
            discardRelease = true;
        }

        public void mouseReleased(MouseEvent e) {
            finishMouseReleased();
        }

        public void mousePressed(MouseEvent e) {
            Point p = SwingUtilities.convertPoint((Component)e.getSource(),
                        e.getX(), e.getY(), null);
            __x = e.getX();
            __y = e.getY();
            _x = p.x;
            _y = p.y;
            startingBounds = frame.getBounds();
            resizeDir = RESIZE_NONE;
            discardRelease = false;

            try { frame.setSelected(true); }
            catch (PropertyVetoException e1) { }

            Insets i = frame.getInsets();

            Point ep = new Point(__x, __y);
            if (e.getSource() == getNorthPane()) {
                Point np = getNorthPane().getLocation();
                ep.x += np.x;
                ep.y += np.y;
            }

            if (e.getSource() == getNorthPane()) {
                if (ep.x > i.left && ep.y > i.top && ep.x < frame.getWidth() - i.right) {
                    getDesktopManager().beginDraggingFrame(frame);
                    dragging = true;
                    return;
                }
            }
            if (!frame.isResizable()) {
              return;
            }

            if (e.getSource() == frame || e.getSource() == getNorthPane()) {
                if (ep.x <= i.left) {
                    if (ep.y < resizeCornerSize + i.top) {
                        resizeDir = NORTH_WEST;
                    } else if (ep.y > frame.getHeight()
                              - resizeCornerSize - i.bottom) {
                        resizeDir = SOUTH_WEST;
                    } else {
                        resizeDir = WEST;
}
                } else if (ep.x >= frame.getWidth() - i.right) {
                    if (ep.y < resizeCornerSize + i.top) {
                        resizeDir = NORTH_EAST;
                    } else if (ep.y > frame.getHeight()
                              - resizeCornerSize - i.bottom) {
                        resizeDir = SOUTH_EAST;
                    } else {
                        resizeDir = EAST;
                    }
                } else if (ep.y <= i.top) {
                    if (ep.x < resizeCornerSize + i.left) {
                        resizeDir = NORTH_WEST;
                    } else if (ep.x > frame.getWidth()
                              - resizeCornerSize - i.right) {
                        resizeDir = NORTH_EAST;
                    } else {
                        resizeDir = NORTH;
                    }
                } else if (ep.y >= frame.getHeight() - i.bottom) {
                    if (ep.x < resizeCornerSize + i.left) {
                        resizeDir = SOUTH_WEST;
                    } else if (ep.x > frame.getWidth()
                              - resizeCornerSize - i.right) {
                        resizeDir = SOUTH_EAST;
                    } else {
                      resizeDir = SOUTH;
                    }
                } else {
                  /* the mouse press happened inside the frame, not in the
                     border */
                  discardRelease = true;
                  return;
                }
                Cursor s = Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
                switch (resizeDir) {
                case SOUTH:
                  s = Cursor.getPredefinedCursor(Cursor.S_RESIZE_CURSOR);
                  break;
                case NORTH:
                  s = Cursor.getPredefinedCursor(Cursor.N_RESIZE_CURSOR);
                  break;
                case WEST:
                  s = Cursor.getPredefinedCursor(Cursor.W_RESIZE_CURSOR);
                  break;
                case EAST:
                  s = Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR);
                  break;
                case SOUTH_EAST:
                  s = Cursor.getPredefinedCursor(Cursor.SE_RESIZE_CURSOR);
                  break;
                case SOUTH_WEST:
                  s = Cursor.getPredefinedCursor(Cursor.SW_RESIZE_CURSOR);
                  break;
                case NORTH_WEST:
                  s = Cursor.getPredefinedCursor(Cursor.NW_RESIZE_CURSOR);
                  break;
                case NORTH_EAST:
                  s = Cursor.getPredefinedCursor(Cursor.NE_RESIZE_CURSOR);
                  break;
                }
                Container c = frame.getTopLevelAncestor();
                if (c instanceof RootPaneContainer) {
                    Component glassPane = ((RootPaneContainer)c).getGlassPane();
                    glassPane.setVisible(true);
                    glassPane.setCursor(s);
                }
                getDesktopManager().beginResizingFrame(frame, resizeDir);
                resizing = true;
                // Add the WindowFocusListener for handling a
                // WINDOW_LOST_FOCUS event with a cancelResize().
                Window windowAncestor = SwingUtilities.getWindowAncestor(frame);
                if (windowAncestor != null) {
                    windowAncestor.addWindowFocusListener(
                        getWindowFocusListener());
                }
                return;
            }
        }

        public void mouseDragged(MouseEvent e) {

            if ( startingBounds == null ) {
              // (STEVE) Yucky work around for bug ID 4106552
                 return;
            }

            Point p = SwingUtilities.convertPoint((Component)e.getSource(),
                    e.getX(), e.getY(), null);
            int deltaX = _x - p.x;
            int deltaY = _y - p.y;
            Dimension min = frame.getMinimumSize();
            Dimension max = frame.getMaximumSize();
            int newX, newY, newW, newH;
            Insets i = frame.getInsets();

            // Handle a MOVE
            if (dragging) {
                if (frame.isMaximum() || ((e.getModifiers() &
                        InputEvent.BUTTON1_MASK) !=
                        InputEvent.BUTTON1_MASK)) {
                    // don't allow moving of frames if maximixed or left mouse
                    // button was not used.
                    return;
                }
                int pWidth, pHeight;
                Dimension s = frame.getParent().getSize();
                pWidth = s.width;
                pHeight = s.height;


                newX = startingBounds.x - deltaX;
                newY = startingBounds.y - deltaY;

                // Make sure we stay in-bounds
                if(newX + i.left <= -__x)
                    newX = -__x - i.left + 1;
                if(newY + i.top <= -__y)
                    newY = -__y - i.top + 1;
                if(newX + __x + i.right >= pWidth)
                    newX = pWidth - __x - i.right - 1;
                if(newY + __y + i.bottom >= pHeight)
                    newY =  pHeight - __y - i.bottom - 1;

                getDesktopManager().dragFrame(frame, newX, newY);
                return;
            }

            if(!frame.isResizable()) {
                return;
            }

            newX = frame.getX();
            newY = frame.getY();
            newW = frame.getWidth();
            newH = frame.getHeight();

            parentBounds = frame.getParent().getBounds();

            switch(resizeDir) {
            case RESIZE_NONE:
                return;
            case NORTH:
                if(startingBounds.height + deltaY < min.height)
                    deltaY = -(startingBounds.height - min.height);
                else if(startingBounds.height + deltaY > max.height)
                    deltaY = max.height - startingBounds.height;
                if (startingBounds.y - deltaY < 0) {deltaY = startingBounds.y;}

                newX = startingBounds.x;
                newY = startingBounds.y - deltaY;
                newW = startingBounds.width;
                newH = startingBounds.height + deltaY;
                break;
            case NORTH_EAST:
                if(startingBounds.height + deltaY < min.height)
                    deltaY = -(startingBounds.height - min.height);
                else if(startingBounds.height + deltaY > max.height)
                    deltaY = max.height - startingBounds.height;
                if (startingBounds.y - deltaY < 0) {deltaY = startingBounds.y;}

                if(startingBounds.width - deltaX < min.width)
                    deltaX = startingBounds.width - min.width;
                else if(startingBounds.width - deltaX > max.width)
                    deltaX = -(max.width - startingBounds.width);
                if (startingBounds.x + startingBounds.width - deltaX >
                    parentBounds.width) {
                  deltaX = startingBounds.x + startingBounds.width -
                    parentBounds.width;
                }

                newX = startingBounds.x;
                newY = startingBounds.y - deltaY;
                newW = startingBounds.width - deltaX;
                newH = startingBounds.height + deltaY;
                break;
            case EAST:
                if(startingBounds.width - deltaX < min.width)
                    deltaX = startingBounds.width - min.width;
                else if(startingBounds.width - deltaX > max.width)
                    deltaX = -(max.width - startingBounds.width);
                if (startingBounds.x + startingBounds.width - deltaX >
                    parentBounds.width) {
                  deltaX = startingBounds.x + startingBounds.width -
                    parentBounds.width;
                }

                newW = startingBounds.width - deltaX;
                newH = startingBounds.height;
                break;
            case SOUTH_EAST:
                if(startingBounds.width - deltaX < min.width)
                    deltaX = startingBounds.width - min.width;
                else if(startingBounds.width - deltaX > max.width)
                    deltaX = -(max.width - startingBounds.width);
                if (startingBounds.x + startingBounds.width - deltaX >
                    parentBounds.width) {
                  deltaX = startingBounds.x + startingBounds.width -
                    parentBounds.width;
                }

                if(startingBounds.height - deltaY < min.height)
                    deltaY = startingBounds.height - min.height;
                else if(startingBounds.height - deltaY > max.height)
                    deltaY = -(max.height - startingBounds.height);
                if (startingBounds.y + startingBounds.height - deltaY >
                     parentBounds.height) {
                  deltaY = startingBounds.y + startingBounds.height -
                    parentBounds.height ;
                }

                newW = startingBounds.width - deltaX;
                newH = startingBounds.height - deltaY;
                break;
            case SOUTH:
                if(startingBounds.height - deltaY < min.height)
                    deltaY = startingBounds.height - min.height;
                else if(startingBounds.height - deltaY > max.height)
                    deltaY = -(max.height - startingBounds.height);
                if (startingBounds.y + startingBounds.height - deltaY >
                     parentBounds.height) {
                  deltaY = startingBounds.y + startingBounds.height -
                    parentBounds.height ;
                }

                newW = startingBounds.width;
                newH = startingBounds.height - deltaY;
                break;
            case SOUTH_WEST:
                if(startingBounds.height - deltaY < min.height)
                    deltaY = startingBounds.height - min.height;
                else if(startingBounds.height - deltaY > max.height)
                    deltaY = -(max.height - startingBounds.height);
                if (startingBounds.y + startingBounds.height - deltaY >
                     parentBounds.height) {
                  deltaY = startingBounds.y + startingBounds.height -
                    parentBounds.height ;
                }

                if(startingBounds.width + deltaX < min.width)
                    deltaX = -(startingBounds.width - min.width);
                else if(startingBounds.width + deltaX > max.width)
                    deltaX = max.width - startingBounds.width;
                if (startingBounds.x - deltaX < 0) {
                  deltaX = startingBounds.x;
                }

                newX = startingBounds.x - deltaX;
                newY = startingBounds.y;
                newW = startingBounds.width + deltaX;
                newH = startingBounds.height - deltaY;
                break;
            case WEST:
                if(startingBounds.width + deltaX < min.width)
                    deltaX = -(startingBounds.width - min.width);
                else if(startingBounds.width + deltaX > max.width)
                    deltaX = max.width - startingBounds.width;
                if (startingBounds.x - deltaX < 0) {
                  deltaX = startingBounds.x;
                }

                newX = startingBounds.x - deltaX;
                newY = startingBounds.y;
                newW = startingBounds.width + deltaX;
                newH = startingBounds.height;
                break;
            case NORTH_WEST:
                if(startingBounds.width + deltaX < min.width)
                    deltaX = -(startingBounds.width - min.width);
                else if(startingBounds.width + deltaX > max.width)
                    deltaX = max.width - startingBounds.width;
                if (startingBounds.x - deltaX < 0) {
                  deltaX = startingBounds.x;
                }

                if(startingBounds.height + deltaY < min.height)
                    deltaY = -(startingBounds.height - min.height);
                else if(startingBounds.height + deltaY > max.height)
                    deltaY = max.height - startingBounds.height;
                if (startingBounds.y - deltaY < 0) {deltaY = startingBounds.y;}

                newX = startingBounds.x - deltaX;
                newY = startingBounds.y - deltaY;
                newW = startingBounds.width + deltaX;
                newH = startingBounds.height + deltaY;
                break;
            default:
                return;
            }
            getDesktopManager().resizeFrame(frame, newX, newY, newW, newH);
        }

        public void mouseMoved(MouseEvent e)    {

            if(!frame.isResizable())
                return;

            if (e.getSource() == frame || e.getSource() == getNorthPane()) {
                Insets i = frame.getInsets();
                Point ep = new Point(e.getX(), e.getY());
                if (e.getSource() == getNorthPane()) {
                    Point np = getNorthPane().getLocation();
                    ep.x += np.x;
                    ep.y += np.y;
                }
                if(ep.x <= i.left) {
                    if(ep.y < resizeCornerSize + i.top)
                        frame.setCursor(Cursor.getPredefinedCursor(Cursor.NW_RESIZE_CURSOR));
                    else if(ep.y > frame.getHeight() - resizeCornerSize - i.bottom)
                        frame.setCursor(Cursor.getPredefinedCursor(Cursor.SW_RESIZE_CURSOR));
                    else
                        frame.setCursor(Cursor.getPredefinedCursor(Cursor.W_RESIZE_CURSOR));
                } else if(ep.x >= frame.getWidth() - i.right) {
                    if(e.getY() < resizeCornerSize + i.top)
                        frame.setCursor(Cursor.getPredefinedCursor(Cursor.NE_RESIZE_CURSOR));
                    else if(ep.y > frame.getHeight() - resizeCornerSize - i.bottom)
                        frame.setCursor(Cursor.getPredefinedCursor(Cursor.SE_RESIZE_CURSOR));
                    else
                        frame.setCursor(Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR));
                } else if(ep.y <= i.top) {
                    if(ep.x < resizeCornerSize + i.left)
                        frame.setCursor(Cursor.getPredefinedCursor(Cursor.NW_RESIZE_CURSOR));
                    else if(ep.x > frame.getWidth() - resizeCornerSize - i.right)
                        frame.setCursor(Cursor.getPredefinedCursor(Cursor.NE_RESIZE_CURSOR));
                    else
                        frame.setCursor(Cursor.getPredefinedCursor(Cursor.N_RESIZE_CURSOR));
                } else if(ep.y >= frame.getHeight() - i.bottom) {
                    if(ep.x < resizeCornerSize + i.left)
                        frame.setCursor(Cursor.getPredefinedCursor(Cursor.SW_RESIZE_CURSOR));
                    else if(ep.x > frame.getWidth() - resizeCornerSize - i.right)
                        frame.setCursor(Cursor.getPredefinedCursor(Cursor.SE_RESIZE_CURSOR));
                    else
                        frame.setCursor(Cursor.getPredefinedCursor(Cursor.S_RESIZE_CURSOR));
                }
                else
                    updateFrameCursor();
                return;
            }

            updateFrameCursor();
        }

        public void mouseEntered(MouseEvent e)    {
            updateFrameCursor();
        }

        public void mouseExited(MouseEvent e)    {
            updateFrameCursor();
        }

    }    /// End BorderListener Class

    protected class ComponentHandler implements ComponentListener {
      // NOTE: This class exists only for backward compatibility. All
      // its functionality has been moved into Handler. If you need to add
      // new functionality add it to the Handler, but make sure this
      // class calls into the Handler.
      /** Invoked when a JInternalFrame's parent's size changes. */
      public void componentResized(ComponentEvent e) {
          getHandler().componentResized(e);
      }

      public void componentMoved(ComponentEvent e) {
          getHandler().componentMoved(e);
      }
      public void componentShown(ComponentEvent e) {
          getHandler().componentShown(e);
      }
      public void componentHidden(ComponentEvent e) {
          getHandler().componentHidden(e);
      }
    }

    protected ComponentListener createComponentListener() {
      return getHandler();
    }


    protected class GlassPaneDispatcher implements MouseInputListener {
        // NOTE: This class exists only for backward compatibility. All
        // its functionality has been moved into Handler. If you need to add
        // new functionality add it to the Handler, but make sure this
        // class calls into the Handler.
        public void mousePressed(MouseEvent e) {
            getHandler().mousePressed(e);
        }

        public void mouseEntered(MouseEvent e) {
            getHandler().mouseEntered(e);
        }

        public void mouseMoved(MouseEvent e) {
            getHandler().mouseMoved(e);
        }

        public void mouseExited(MouseEvent e) {
            getHandler().mouseExited(e);
        }

        public void mouseClicked(MouseEvent e) {
            getHandler().mouseClicked(e);
        }

        public void mouseReleased(MouseEvent e) {
            getHandler().mouseReleased(e);
        }

        public void mouseDragged(MouseEvent e) {
            getHandler().mouseDragged(e);
        }
    }

    protected MouseInputListener createGlassPaneDispatcher() {
        return null;
    }


    protected class BasicInternalFrameListener implements InternalFrameListener
    {
      // NOTE: This class exists only for backward compatibility. All
      // its functionality has been moved into Handler. If you need to add
      // new functionality add it to the Handler, but make sure this
      // class calls into the Handler.
      public void internalFrameClosing(InternalFrameEvent e) {
          getHandler().internalFrameClosing(e);
      }

      public void internalFrameClosed(InternalFrameEvent e) {
          getHandler().internalFrameClosed(e);
      }

      public void internalFrameOpened(InternalFrameEvent e) {
          getHandler().internalFrameOpened(e);
      }

      public void internalFrameIconified(InternalFrameEvent e) {
          getHandler().internalFrameIconified(e);
      }

      public void internalFrameDeiconified(InternalFrameEvent e) {
          getHandler().internalFrameDeiconified(e);
      }

      public void internalFrameActivated(InternalFrameEvent e) {
          getHandler().internalFrameActivated(e);
      }


      public void internalFrameDeactivated(InternalFrameEvent e) {
          getHandler().internalFrameDeactivated(e);
      }
    }

    private class Handler implements ComponentListener, InternalFrameListener,
            LayoutManager, MouseInputListener, PropertyChangeListener,
            WindowFocusListener, SwingConstants {

        public void windowGainedFocus(WindowEvent e) {
        }

        public void windowLostFocus(WindowEvent e) {
            // Cancel a resize which may be in progress, when a
            // WINDOW_LOST_FOCUS event occurs, which may be
            // caused by an Alt-Tab or a modal dialog popup.
            cancelResize();
        }

        // ComponentHandler methods
        /** Invoked when a JInternalFrame's parent's size changes. */
        public void componentResized(ComponentEvent e) {
            // Get the JInternalFrame's parent container size
            Rectangle parentNewBounds = ((Component) e.getSource()).getBounds();
            JInternalFrame.JDesktopIcon icon = null;

            if (frame != null) {
                icon = frame.getDesktopIcon();
                // Resize the internal frame if it is maximized and relocate
                // the associated icon as well.
                if (frame.isMaximum()) {
                    frame.setBounds(0, 0, parentNewBounds.width,
                        parentNewBounds.height);
                }
            }

            // Relocate the icon base on the new parent bounds.
            if (icon != null) {
                Rectangle iconBounds = icon.getBounds();
                int y = iconBounds.y +
                        (parentNewBounds.height - parentBounds.height);
                icon.setBounds(iconBounds.x, y,
                        iconBounds.width, iconBounds.height);
            }

            // Update the new parent bounds for next resize.
            if (!parentBounds.equals(parentNewBounds)) {
                parentBounds = parentNewBounds;
            }

            // Validate the component tree for this container.
            if (frame != null) frame.validate();
        }

        public void componentMoved(ComponentEvent e) {}
        public void componentShown(ComponentEvent e) {}
        public void componentHidden(ComponentEvent e) {}


        // InternalFrameListener
        public void internalFrameClosed(InternalFrameEvent e) {
            frame.removeInternalFrameListener(getHandler());
        }

        public void internalFrameActivated(InternalFrameEvent e) {
            if (!isKeyBindingRegistered()){
                setKeyBindingRegistered(true);
                setupMenuOpenKey();
                setupMenuCloseKey();
            }
            if (isKeyBindingRegistered())
                setKeyBindingActive(true);
        }

        public void internalFrameDeactivated(InternalFrameEvent e) {
            setKeyBindingActive(false);
        }

        public void internalFrameClosing(InternalFrameEvent e) { }
        public void internalFrameOpened(InternalFrameEvent e) { }
        public void internalFrameIconified(InternalFrameEvent e) { }
        public void internalFrameDeiconified(InternalFrameEvent e) { }


        // LayoutManager
        public void addLayoutComponent(String name, Component c) {}
        public void removeLayoutComponent(Component c) {}
        public Dimension preferredLayoutSize(Container c)  {
            Dimension result;
            Insets i = frame.getInsets();

            result = new Dimension(frame.getRootPane().getPreferredSize());
            result.width += i.left + i.right;
            result.height += i.top + i.bottom;

            if(getNorthPane() != null) {
                Dimension d = getNorthPane().getPreferredSize();
                result.width = Math.max(d.width, result.width);
                result.height += d.height;
            }

            if(getSouthPane() != null) {
                Dimension d = getSouthPane().getPreferredSize();
                result.width = Math.max(d.width, result.width);
                result.height += d.height;
            }

            if(getEastPane() != null) {
                Dimension d = getEastPane().getPreferredSize();
                result.width += d.width;
                result.height = Math.max(d.height, result.height);
            }

            if(getWestPane() != null) {
                Dimension d = getWestPane().getPreferredSize();
                result.width += d.width;
                result.height = Math.max(d.height, result.height);
            }
            return result;
        }

        public Dimension minimumLayoutSize(Container c) {
            // The minimum size of the internal frame only takes into
            // account the title pane since you are allowed to resize
            // the frames to the point where just the title pane is visible.
            Dimension result = new Dimension();
            if (getNorthPane() != null &&
                getNorthPane() instanceof BasicInternalFrameTitlePane) {
                  result = new Dimension(getNorthPane().getMinimumSize());
            }
            Insets i = frame.getInsets();
            result.width += i.left + i.right;
            result.height += i.top + i.bottom;

            return result;
        }

        public void layoutContainer(Container c) {
            Insets i = frame.getInsets();
            int cx, cy, cw, ch;

            cx = i.left;
            cy = i.top;
            cw = frame.getWidth() - i.left - i.right;
            ch = frame.getHeight() - i.top - i.bottom;

            if(getNorthPane() != null) {
                Dimension size = getNorthPane().getPreferredSize();
                if (DefaultLookup.getBoolean(frame, BasicInternalFrameUI.this,
                          "InternalFrame.layoutTitlePaneAtOrigin", false)) {
                    cy = 0;
                    ch += i.top;
                    getNorthPane().setBounds(0, 0, frame.getWidth(),
                                             size.height);
                }
                else {
                    getNorthPane().setBounds(cx, cy, cw, size.height);
                }
                cy += size.height;
                ch -= size.height;
            }

            if(getSouthPane() != null) {
                Dimension size = getSouthPane().getPreferredSize();
                getSouthPane().setBounds(cx, frame.getHeight()
                                                    - i.bottom - size.height,
                                                    cw, size.height);
                ch -= size.height;
            }

            if(getWestPane() != null) {
                Dimension size = getWestPane().getPreferredSize();
                getWestPane().setBounds(cx, cy, size.width, ch);
                cw -= size.width;
                cx += size.width;
            }

            if(getEastPane() != null) {
                Dimension size = getEastPane().getPreferredSize();
                getEastPane().setBounds(cw - size.width, cy, size.width, ch);
                cw -= size.width;
            }

            if(frame.getRootPane() != null) {
                frame.getRootPane().setBounds(cx, cy, cw, ch);
            }
        }


        // MouseInputListener
        public void mousePressed(MouseEvent e) { }

        public void mouseEntered(MouseEvent e) { }

        public void mouseMoved(MouseEvent e) { }

        public void mouseExited(MouseEvent e) { }

        public void mouseClicked(MouseEvent e) { }

        public void mouseReleased(MouseEvent e) { }

        public void mouseDragged(MouseEvent e) { }

        // PropertyChangeListener
        public void propertyChange(PropertyChangeEvent evt) {
            String prop = evt.getPropertyName();
            JInternalFrame f = (JInternalFrame)evt.getSource();
            Object newValue = evt.getNewValue();
            Object oldValue = evt.getOldValue();

            if (JInternalFrame.IS_CLOSED_PROPERTY == prop) {
                if (newValue == Boolean.TRUE) {
                    // Cancel a resize in progress if the internal frame
                    // gets a setClosed(true) or dispose().
                    cancelResize();
                    if ((frame.getParent() != null) && componentListenerAdded) {
                        frame.getParent().removeComponentListener(componentListener);
                    }
                    closeFrame(f);
                }
            } else if (JInternalFrame.IS_MAXIMUM_PROPERTY == prop) {
                if(newValue == Boolean.TRUE) {
                    maximizeFrame(f);
                } else {
                    minimizeFrame(f);
                }
            } else if(JInternalFrame.IS_ICON_PROPERTY == prop) {
                if (newValue == Boolean.TRUE) {
                    iconifyFrame(f);
                } else {
                    deiconifyFrame(f);
                }
            } else if (JInternalFrame.IS_SELECTED_PROPERTY == prop) {
                if (newValue == Boolean.TRUE && oldValue == Boolean.FALSE) {
                    activateFrame(f);
                } else if (newValue == Boolean.FALSE &&
                           oldValue == Boolean.TRUE) {
                    deactivateFrame(f);
                }
            } else if (prop == "ancestor") {
                if (newValue == null) {
                    // Cancel a resize in progress, if the internal frame
                    // gets a remove(), removeNotify() or setIcon(true).
                    cancelResize();
                }
                if (frame.getParent() != null) {
                    parentBounds = f.getParent().getBounds();
                } else {
                    parentBounds = null;
                }
                if ((frame.getParent() != null) && !componentListenerAdded) {
                    f.getParent().addComponentListener(componentListener);
                    componentListenerAdded = true;
                }
            } else if (JInternalFrame.TITLE_PROPERTY == prop ||
                    prop == "closable" || prop == "iconable" ||
                    prop == "maximizable") {
                Dimension dim = frame.getMinimumSize();
                Dimension frame_dim = frame.getSize();
                if (dim.width > frame_dim.width) {
                    frame.setSize(dim.width, frame_dim.height);
                }
            }
        }
    }
}

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