/*
 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */


package javax.swing;

import com.sun.awt.AWTUtilities;
import sun.awt.AWTAccessor;
import sun.awt.SunToolkit;

import java.awt.*;
import java.beans.PropertyVetoException;

/** This is an implementation of the <code>DesktopManager</code>.
 * It currently implements the basic behaviors for managing
 * <code>JInternalFrame</code>s in an arbitrary parent.
 * <code>JInternalFrame</code>s that are not children of a
 * <code>JDesktop</code> will use this component
 * to handle their desktop-like actions.
 * <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
 * @author David Kloba
 * @author Steve Wilson
 */
public class DefaultDesktopManager implements DesktopManager, java.io.Serializable {
 final static String HAS_BEEN_ICONIFIED_PROPERTY = "wasIconOnce";

 final static int DEFAULT_DRAG_MODE = 0;
 final static int OUTLINE_DRAG_MODE = 1;
 final static int FASTER_DRAG_MODE = 2;

 int dragMode = DEFAULT_DRAG_MODE;

 private transient Rectangle currentBounds = null;
 private transient Graphics desktopGraphics = null;
 private transient Rectangle desktopBounds = null;
 private transient Rectangle[] floatingItems = {};

 /**
 * Set to true when the user actually drags a frame vs clicks on it
 * to start the drag operation. This is only used when dragging with
 * FASTER_DRAG_MODE.
 */
 private transient boolean didDrag;

 /** Normally this method will not be called. If it is, it
 * try to determine the appropriate parent from the desktopIcon of the frame.
 * Will remove the desktopIcon from its parent if it successfully adds the frame.
 */
 public void openFrame(JInternalFrame f) {
 if(f.getDesktopIcon().getParent() != null) {
 f.getDesktopIcon().getParent().add(f);
 removeIconFor(f);
 }
 }

 /**
 * Removes the frame, and, if necessary, the
 * <code>desktopIcon</code>, from its parent.
 * @param f the <code>JInternalFrame</code> to be removed
 */
 public void closeFrame(JInternalFrame f) {
 JDesktopPane d = f.getDesktopPane();
 if (d == null) {
 return;
 }
 boolean findNext = f.isSelected();
 Container c = f.getParent();
 JInternalFrame nextFrame = null;
 if (findNext) {
 nextFrame = d.getNextFrame(f);
 try { f.setSelected(false); } catch (PropertyVetoException e2) { }
 }
 if(c != null) {
 c.remove(f); // Removes the focus.
 c.repaint(f.getX(), f.getY(), f.getWidth(), f.getHeight());
 }
 removeIconFor(f);
 if(f.getNormalBounds() != null)
 f.setNormalBounds(null);
 if(wasIcon(f))
 setWasIcon(f, null);
 if (nextFrame != null) {
 try { nextFrame.setSelected(true); }
 catch (PropertyVetoException e2) { }
 } else if (findNext && d.getComponentCount() == 0) {
 // It was selected and was the last component on the desktop.
 d.requestFocus();
 }
 }

 /**
 * Resizes the frame to fill its parents bounds.
 * @param f the frame to be resized
 */
 public void maximizeFrame(JInternalFrame f) {
 if (f.isIcon()) {
 try {
 // In turn calls deiconifyFrame in the desktop manager.
 // That method will handle the maximization of the frame.
 f.setIcon(false);
 } catch (PropertyVetoException e2) {
 }
 } else {
 f.setNormalBounds(f.getBounds());
 Rectangle desktopBounds = f.getParent().getBounds();
 setBoundsForFrame(f, 0, 0,
 desktopBounds.width, desktopBounds.height);
 }

 // Set the maximized frame as selected.
 try {
 f.setSelected(true);
 } catch (PropertyVetoException e2) {
 }
 }

 /**
 * Restores the frame back to its size and position prior
 * to a <code>maximizeFrame</code> call.
 * @param f the <code>JInternalFrame</code> to be restored
 */
 public void minimizeFrame(JInternalFrame f) {
 // If the frame was an icon restore it back to an icon.
 if (f.isIcon()) {
 iconifyFrame(f);
 return;
 }

 if ((f.getNormalBounds()) != null) {
 Rectangle r = f.getNormalBounds();
 f.setNormalBounds(null);
 try { f.setSelected(true); } catch (PropertyVetoException e2) { }
 setBoundsForFrame(f, r.x, r.y, r.width, r.height);
 }
 }

 /**
 * Removes the frame from its parent and adds its
 * <code>desktopIcon</code> to the parent.
 * @param f the <code>JInternalFrame</code> to be iconified
 */
 public void iconifyFrame(JInternalFrame f) {
 JInternalFrame.JDesktopIcon desktopIcon;
 Container c = f.getParent();
 JDesktopPane d = f.getDesktopPane();
 boolean findNext = f.isSelected();
 desktopIcon = f.getDesktopIcon();
 if(!wasIcon(f)) {
 Rectangle r = getBoundsForIconOf(f);
 desktopIcon.setBounds(r.x, r.y, r.width, r.height);
 // we must validate the hierarchy to not break the hw/lw mixing
 desktopIcon.revalidate();
 setWasIcon(f, Boolean.TRUE);
 }

 if (c == null || d == null) {
 return;
 }

 if (c instanceof JLayeredPane) {
 JLayeredPane lp = (JLayeredPane)c;
 int layer = lp.getLayer(f);
 lp.putLayer(desktopIcon, layer);
 }

 // If we are maximized we already have the normal bounds recorded
 // don't try to re-record them, otherwise we incorrectly set the
 // normal bounds to maximized state.
 if (!f.isMaximum()) {
 f.setNormalBounds(f.getBounds());
 }
 d.setComponentOrderCheckingEnabled(false);
 c.remove(f);
 c.add(desktopIcon);
 d.setComponentOrderCheckingEnabled(true);
 c.repaint(f.getX(), f.getY(), f.getWidth(), f.getHeight());
 if (findNext) {
 if (d.selectFrame(true) == null) {
 // The icon is the last frame.
 f.restoreSubcomponentFocus();
 }
 }
 }

 /**
 * Removes the desktopIcon from its parent and adds its frame
 * to the parent.
 * @param f the <code>JInternalFrame</code> to be de-iconified
 */
 public void deiconifyFrame(JInternalFrame f) {
 JInternalFrame.JDesktopIcon desktopIcon = f.getDesktopIcon();
 Container c = desktopIcon.getParent();
 JDesktopPane d = f.getDesktopPane();
 if (c != null && d != null) {
 c.add(f);
 // If the frame is to be restored to a maximized state make
 // sure it still fills the whole desktop.
 if (f.isMaximum()) {
 Rectangle desktopBounds = c.getBounds();
 if (f.getWidth() != desktopBounds.width ||
 f.getHeight() != desktopBounds.height) {
 setBoundsForFrame(f, 0, 0,
 desktopBounds.width, desktopBounds.height);
 }
 }
 removeIconFor(f);
 if (f.isSelected()) {
 f.moveToFront();
 f.restoreSubcomponentFocus();
 }
 else {
 try {
 f.setSelected(true);
 } catch (PropertyVetoException e2) {}

 }
 }
 }

 /** This will activate <b>f</b> moving it to the front. It will
 * set the current active frame's (if any)
 * <code>IS_SELECTED_PROPERTY</code> to <code>false</code>.
 * There can be only one active frame across all Layers.
 * @param f the <code>JInternalFrame</code> to be activated
 */
 public void activateFrame(JInternalFrame f) {
 Container p = f.getParent();
 Component[] c;
 JDesktopPane d = f.getDesktopPane();
 JInternalFrame currentlyActiveFrame =
 (d == null) ? null : d.getSelectedFrame();
 // fix for bug: 4162443
 if(p == null) {
 // If the frame is not in parent, its icon maybe, check it
 p = f.getDesktopIcon().getParent();
 if(p == null)
 return;
 }
 // we only need to keep track of the currentActive InternalFrame, if any
 if (currentlyActiveFrame == null){
 if (d != null) { d.setSelectedFrame(f);}
 } else if (currentlyActiveFrame != f) {
 // if not the same frame as the current active
 // we deactivate the current
 if (currentlyActiveFrame.isSelected()) {
 try {
 currentlyActiveFrame.setSelected(false);
 }
 catch(PropertyVetoException e2) {}
 }
 if (d != null) { d.setSelectedFrame(f);}
 }
 f.moveToFront();
 }

 // implements javax.swing.DesktopManager
 public void deactivateFrame(JInternalFrame f) {
 JDesktopPane d = f.getDesktopPane();
 JInternalFrame currentlyActiveFrame =
 (d == null) ? null : d.getSelectedFrame();
 if (currentlyActiveFrame == f)
 d.setSelectedFrame(null);
 }

 // implements javax.swing.DesktopManager
 public void beginDraggingFrame(JComponent f) {
 setupDragMode(f);

 if (dragMode == FASTER_DRAG_MODE) {
 Component desktop = f.getParent();
 floatingItems = findFloatingItems(f);
 currentBounds = f.getBounds();
 if (desktop instanceof JComponent) {
 desktopBounds = ((JComponent)desktop).getVisibleRect();
 }
 else {
 desktopBounds = desktop.getBounds();
 desktopBounds.x = desktopBounds.y = 0;
 }
 desktopGraphics = JComponent.safelyGetGraphics(desktop);
 ((JInternalFrame)f).isDragging = true;
 didDrag = false;
 }

 }

 private void setupDragMode(JComponent f) {
 JDesktopPane p = getDesktopPane(f);
 Container parent = f.getParent();
 dragMode = DEFAULT_DRAG_MODE;
 if (p != null) {
 String mode = (String)p.getClientProperty("JDesktopPane.dragMode");
 Window window = SwingUtilities.getWindowAncestor(f);
 if (window != null && !AWTUtilities.isWindowOpaque(window)) {
 dragMode = DEFAULT_DRAG_MODE;
 } else if (mode != null && mode.equals("outline")) {
 dragMode = OUTLINE_DRAG_MODE;
 } else if (mode != null && mode.equals("faster")
 && f instanceof JInternalFrame
 && ((JInternalFrame)f).isOpaque() &&
 (parent == null || parent.isOpaque())) {
 dragMode = FASTER_DRAG_MODE;
 } else {
 if (p.getDragMode() == JDesktopPane.OUTLINE_DRAG_MODE ) {
 dragMode = OUTLINE_DRAG_MODE;
 } else if ( p.getDragMode() == JDesktopPane.LIVE_DRAG_MODE
 && f instanceof JInternalFrame
 && ((JInternalFrame)f).isOpaque()) {
 dragMode = FASTER_DRAG_MODE;
 } else {
 dragMode = DEFAULT_DRAG_MODE;
 }
 }
 }
 }

 private transient Point currentLoc = null;

 /**
 * Moves the visible location of the frame being dragged
 * to the location specified. The means by which this occurs can vary depending
 * on the dragging algorithm being used. The actual logical location of the frame
 * might not change until <code>endDraggingFrame</code> is called.
 */
 public void dragFrame(JComponent f, int newX, int newY) {

 if (dragMode == OUTLINE_DRAG_MODE) {
 JDesktopPane desktopPane = getDesktopPane(f);
 if (desktopPane != null){
 Graphics g = JComponent.safelyGetGraphics(desktopPane);

 g.setXORMode(Color.white);
 if (currentLoc != null) {
 g.drawRect(currentLoc.x, currentLoc.y,
 f.getWidth()-1, f.getHeight()-1);
 }
 g.drawRect( newX, newY, f.getWidth()-1, f.getHeight()-1);
 /* Work around for 6635462: XOR mode may cause a SurfaceLost on first use.
 * Swing doesn't expect that its XOR drawRect did
 * not complete, so believes that on re-entering at
 * the next update location, that there is an XOR rect
 * to draw out at "currentLoc". But in fact
 * its now got a new clean surface without that rect,
 * so drawing it "out" in fact draws it on, leaving garbage.
 * So only update/set currentLoc if the draw completed.
 */
 sun.java2d.SurfaceData sData =
 ((sun.java2d.SunGraphics2D)g).getSurfaceData();

 if (!sData.isSurfaceLost()) {
 currentLoc = new Point (newX, newY);
 }
;
 g.dispose();
 }
 } else if (dragMode == FASTER_DRAG_MODE) {
 dragFrameFaster(f, newX, newY);
 } else {
 setBoundsForFrame(f, newX, newY, f.getWidth(), f.getHeight());
 }
 }

 // implements javax.swing.DesktopManager
 public void endDraggingFrame(JComponent f) {
 if ( dragMode == OUTLINE_DRAG_MODE && currentLoc != null) {
 setBoundsForFrame(f, currentLoc.x, currentLoc.y, f.getWidth(), f.getHeight() );
 currentLoc = null;
 } else if (dragMode == FASTER_DRAG_MODE) {
 currentBounds = null;
 if (desktopGraphics != null) {
 desktopGraphics.dispose();
 desktopGraphics = null;
 }
 desktopBounds = null;
 ((JInternalFrame)f).isDragging = false;
 }
 }

 // implements javax.swing.DesktopManager
 public void beginResizingFrame(JComponent f, int direction) {
 setupDragMode(f);
 }

 /**
 * Calls <code>setBoundsForFrame</code> with the new values.
 * @param f the component to be resized
 * @param newX the new x-coordinate
 * @param newY the new y-coordinate
 * @param newWidth the new width
 * @param newHeight the new height
 */
 public void resizeFrame(JComponent f, int newX, int newY, int newWidth, int newHeight) {

 if ( dragMode == DEFAULT_DRAG_MODE || dragMode == FASTER_DRAG_MODE ) {
 setBoundsForFrame(f, newX, newY, newWidth, newHeight);
 } else {
 JDesktopPane desktopPane = getDesktopPane(f);
 if (desktopPane != null){
 Graphics g = JComponent.safelyGetGraphics(desktopPane);

 g.setXORMode(Color.white);
 if (currentBounds != null) {
 g.drawRect( currentBounds.x, currentBounds.y, currentBounds.width-1, currentBounds.height-1);
 }
 g.drawRect( newX, newY, newWidth-1, newHeight-1);

 // Work around for 6635462, see comment in dragFrame()
 sun.java2d.SurfaceData sData =
 ((sun.java2d.SunGraphics2D)g).getSurfaceData();
 if (!sData.isSurfaceLost()) {
 currentBounds = new Rectangle (newX, newY, newWidth, newHeight);
 }

 g.setPaintMode();
 g.dispose();
 }
 }

 }

 // implements javax.swing.DesktopManager
 public void endResizingFrame(JComponent f) {
 if ( dragMode == OUTLINE_DRAG_MODE && currentBounds != null) {
 setBoundsForFrame(f, currentBounds.x, currentBounds.y, currentBounds.width, currentBounds.height );
 currentBounds = null;
 }
 }


 /** This moves the <code>JComponent</code> and repaints the damaged areas. */
 public void setBoundsForFrame(JComponent f, int newX, int newY, int newWidth, int newHeight) {
 f.setBounds(newX, newY, newWidth, newHeight);
 // we must validate the hierarchy to not break the hw/lw mixing
 f.revalidate();
 }

 /** Convenience method to remove the desktopIcon of <b>f</b> is necessary. */
 protected void removeIconFor(JInternalFrame f) {
 JInternalFrame.JDesktopIcon di = f.getDesktopIcon();
 Container c = di.getParent();
 if(c != null) {
 c.remove(di);
 c.repaint(di.getX(), di.getY(), di.getWidth(), di.getHeight());
 }
 }

 /** The iconifyFrame() code calls this to determine the proper bounds
 * for the desktopIcon.
 */

 protected Rectangle getBoundsForIconOf(JInternalFrame f) {
 //
 // Get the icon for this internal frame and its preferred size
 //

 JInternalFrame.JDesktopIcon icon = f.getDesktopIcon();
 Dimension prefSize = icon.getPreferredSize();
 //
 // Get the parent bounds and child components.
 //

 Container c = f.getParent();
 if (c == null) {
 c = f.getDesktopIcon().getParent();
 }

 if (c == null) {
 /* the frame has not yet been added to the parent; how about (0,0) ?*/
 return new Rectangle(0, 0, prefSize.width, prefSize.height);
 }

 Rectangle parentBounds = c.getBounds();
 Component [] components = c.getComponents();


 //
 // Iterate through valid default icon locations and return the
 // first one that does not intersect any other icons.
 //

 Rectangle availableRectangle = null;
 JInternalFrame.JDesktopIcon currentIcon = null;

 int x = 0;
 int y = parentBounds.height - prefSize.height;
 int w = prefSize.width;
 int h = prefSize.height;

 boolean found = false;

 while (!found) {

 availableRectangle = new Rectangle(x,y,w,h);

 found = true;

 for ( int i=0; i<components.length; i++ ) {

 //
 // Get the icon for this component
 //

 if ( components[i] instanceof JInternalFrame ) {
 currentIcon = ((JInternalFrame)components[i]).getDesktopIcon();
 }
 else if ( components[i] instanceof JInternalFrame.JDesktopIcon ){
 currentIcon = (JInternalFrame.JDesktopIcon)components[i];
 } else
 /* found a child that's neither an internal frame nor
 an icon. I don't believe this should happen, but at
 present it does and causes a null pointer exception.
 Even when that gets fixed, this code protects against
 the npe. hania */
 continue;

 //
 // If this icon intersects the current location, get next location.
 //

 if ( !currentIcon.equals(icon) ) {
 if ( availableRectangle.intersects(currentIcon.getBounds()) ) {
 found = false;
 break;
 }
 }
 }

 if (currentIcon == null)
 /* didn't find any useful children above. This probably shouldn't
 happen, but this check protects against an npe if it ever does
 (and it's happening now) */
 return availableRectangle;

 x += currentIcon.getBounds().width;

 if ( x + w > parentBounds.width ) {
 x = 0;
 y -= h;
 }
 }

 return(availableRectangle);
 }

 /**
 * Stores the bounds of the component just before a maximize call.
 * @param f the component about to be resized
 * @param r the normal bounds to be saved away
 */
 protected void setPreviousBounds(JInternalFrame f, Rectangle r) {
 f.setNormalBounds(r);
 }

 /**
 * Gets the normal bounds of the component prior to the component
 * being maximized.
 * @param f the <code>JInternalFrame</code> of interest
 * @return the normal bounds of the component
 */
 protected Rectangle getPreviousBounds(JInternalFrame f) {
 return f.getNormalBounds();
 }

 /**
 * Sets that the component has been iconized and the bounds of the
 * <code>desktopIcon</code> are valid.
 */
 protected void setWasIcon(JInternalFrame f, Boolean value) {
 if (value != null) {
 f.putClientProperty(HAS_BEEN_ICONIFIED_PROPERTY, value);
 }
 }

 /**
 * Returns <code>true</code> if the component has been iconized
 * and the bounds of the <code>desktopIcon</code> are valid,
 * otherwise returns <code>false</code>.
 *
 * @param f the <code>JInternalFrame</code> of interest
 * @return <code>true</code> if the component has been iconized;
 * otherwise returns <code>false</code>
 */
 protected boolean wasIcon(JInternalFrame f) {
 return (f.getClientProperty(HAS_BEEN_ICONIFIED_PROPERTY) == Boolean.TRUE);
 }


 JDesktopPane getDesktopPane( JComponent frame ) {
 JDesktopPane pane = null;
 Component c = frame.getParent();

 // Find the JDesktopPane
 while ( pane == null ) {
 if ( c instanceof JDesktopPane ) {
 pane = (JDesktopPane)c;
 }
 else if ( c == null ) {
 break;
 }
 else {
 c = c.getParent();
 }
 }

 return pane;
 }


 // =========== stuff for faster frame dragging ===================

 private void dragFrameFaster(JComponent f, int newX, int newY) {

 Rectangle previousBounds = new Rectangle(currentBounds.x,
 currentBounds.y,
 currentBounds.width,
 currentBounds.height);

 // move the frame
 currentBounds.x = newX;
 currentBounds.y = newY;

 if (didDrag) {
 // Only initiate cleanup if we have actually done a drag.
 emergencyCleanup(f);
 }
 else {
 didDrag = true;
 // We reset the danger field as until now we haven't actually
 // moved the internal frame so we don't need to initiate repaint.
 ((JInternalFrame)f).danger = false;
 }

 boolean floaterCollision = isFloaterCollision(previousBounds, currentBounds);

 JComponent parent = (JComponent)f.getParent();
 Rectangle visBounds = previousBounds.intersection(desktopBounds);

 RepaintManager currentManager = RepaintManager.currentManager(f);

 currentManager.beginPaint();
 try {
 if(!floaterCollision) {
 currentManager.copyArea(parent, desktopGraphics, visBounds.x,
 visBounds.y,
 visBounds.width,
 visBounds.height,
 newX - previousBounds.x,
 newY - previousBounds.y,
 true);
 }

 f.setBounds(currentBounds);

 if (!floaterCollision) {
 Rectangle r = currentBounds;
 currentManager.notifyRepaintPerformed(parent, r.x, r.y, r.width, r.height);
 }

 if(floaterCollision) {
 // since we couldn't blit we just redraw as fast as possible
 // the isDragging mucking is to avoid activating emergency
 // cleanup
 ((JInternalFrame)f).isDragging = false;
 parent.paintImmediately(currentBounds);
 ((JInternalFrame)f).isDragging = true;
 }

 // fake out the repaint manager. We'll take care of everything

 currentManager.markCompletelyClean(parent);
 currentManager.markCompletelyClean(f);

 // compute the minimal newly exposed area
 // if the rects intersect then we use computeDifference. Otherwise
 // we'll repaint the entire previous bounds
 Rectangle[] dirtyRects = null;
 if ( previousBounds.intersects(currentBounds) ) {
 dirtyRects = SwingUtilities.computeDifference(previousBounds,
 currentBounds);
 } else {
 dirtyRects = new Rectangle[1];
 dirtyRects[0] = previousBounds;
 };

 // Fix the damage
 for (int i = 0; i < dirtyRects.length; i++) {
 parent.paintImmediately(dirtyRects[i]);
 Rectangle r = dirtyRects[i];
 currentManager.notifyRepaintPerformed(parent, r.x, r.y, r.width, r.height);
 }

 // new areas of blit were exposed
 if ( !(visBounds.equals(previousBounds)) ) {
 dirtyRects = SwingUtilities.computeDifference(previousBounds,
 desktopBounds);
 for (int i = 0; i < dirtyRects.length; i++) {
 dirtyRects[i].x += newX - previousBounds.x;
 dirtyRects[i].y += newY - previousBounds.y;
 ((JInternalFrame)f).isDragging = false;
 parent.paintImmediately(dirtyRects[i]);
 ((JInternalFrame)f).isDragging = true;
 Rectangle r = dirtyRects[i];
 currentManager.notifyRepaintPerformed(parent, r.x, r.y, r.width, r.height);
 }

 }
 } finally {
 currentManager.endPaint();
 }

 // update window if it's non-opaque
 Window topLevel = SwingUtilities.getWindowAncestor(f);
 Toolkit tk = Toolkit.getDefaultToolkit();
 if (!topLevel.isOpaque() &&
 (tk instanceof SunToolkit) &&
 ((SunToolkit)tk).needUpdateWindow())
 {
 AWTAccessor.getWindowAccessor().updateWindow(topLevel);
 }
 }

 private boolean isFloaterCollision(Rectangle moveFrom, Rectangle moveTo) {
 if (floatingItems.length == 0) {
 // System.out.println("no floaters");
 return false;
 }

 for (int i = 0; i < floatingItems.length; i++) {
 boolean intersectsFrom = moveFrom.intersects(floatingItems[i]);
 if (intersectsFrom) {
 return true;
 }
 boolean intersectsTo = moveTo.intersects(floatingItems[i]);
 if (intersectsTo) {
 return true;
 }
 }

 return false;
 }

 private Rectangle[] findFloatingItems(JComponent f) {
 Container desktop = f.getParent();
 Component[] children = desktop.getComponents();
 int i = 0;
 for (i = 0; i < children.length; i++) {
 if (children[i] == f) {
 break;
 }
 }
 // System.out.println(i);
 Rectangle[] floaters = new Rectangle[i];
 for (i = 0; i < floaters.length; i++) {
 floaters[i] = children[i].getBounds();
 }

 return floaters;
 }

 /**
 * This method is here to clean up problems associated
 * with a race condition which can occur when the full contents
 * of a copyArea's source argument is not available onscreen.
 * This uses brute force to clean up in case of possible damage
 */
 private void emergencyCleanup(final JComponent f) {

 if ( ((JInternalFrame)f).danger ) {

 SwingUtilities.invokeLater( new Runnable(){
 public void run(){

 ((JInternalFrame)f).isDragging = false;
 f.paintImmediately(0,0,
 f.getWidth(),
 f.getHeight());

 //finalFrame.repaint();
 ((JInternalFrame)f).isDragging = true;
 // System.out.println("repair complete");
 }});

 ((JInternalFrame)f).danger = false;
 }

 }


}