author | xdono |
Wed, 02 Jul 2008 12:55:45 -0700 | |
changeset 715 | f16baef3a20e |
parent 459 | d555ba8bbec1 |
child 1301 | 15e81207e1f2 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
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* Copyright 1997-2008 Sun Microsystems, Inc. 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. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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package javax.swing; |
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import java.awt.*; |
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import java.util.*; |
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import java.awt.event.*; |
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import javax.swing.event.*; |
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import sun.awt.AppContext; |
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/** |
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* A MenuSelectionManager owns the selection in menu hierarchy. |
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* |
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* @author Arnaud Weber |
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*/ |
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public class MenuSelectionManager { |
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private Vector selection = new Vector(); |
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/* diagnostic aids -- should be false for production builds. */ |
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private static final boolean TRACE = false; // trace creates and disposes |
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private static final boolean VERBOSE = false; // show reuse hits/misses |
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private static final boolean DEBUG = false; // show bad params, misc. |
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private static final StringBuilder MENU_SELECTION_MANAGER_KEY = |
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new StringBuilder("javax.swing.MenuSelectionManager"); |
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/** |
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* Returns the default menu selection manager. |
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* |
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* @return a MenuSelectionManager object |
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*/ |
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public static MenuSelectionManager defaultManager() { |
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synchronized (MENU_SELECTION_MANAGER_KEY) { |
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AppContext context = AppContext.getAppContext(); |
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MenuSelectionManager msm = (MenuSelectionManager)context.get( |
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MENU_SELECTION_MANAGER_KEY); |
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if (msm == null) { |
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msm = new MenuSelectionManager(); |
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context.put(MENU_SELECTION_MANAGER_KEY, msm); |
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} |
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return msm; |
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} |
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} |
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/** |
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* Only one ChangeEvent is needed per button model instance since the |
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* event's only state is the source property. The source of events |
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* generated is always "this". |
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*/ |
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protected transient ChangeEvent changeEvent = null; |
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protected EventListenerList listenerList = new EventListenerList(); |
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/** |
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* Changes the selection in the menu hierarchy. The elements |
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* in the array are sorted in order from the root menu |
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* element to the currently selected menu element. |
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* <p> |
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* Note that this method is public but is used by the look and |
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* feel engine and should not be called by client applications. |
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* |
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* @param path an array of <code>MenuElement</code> objects specifying |
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* the selected path |
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*/ |
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public void setSelectedPath(MenuElement[] path) { |
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int i,c; |
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int currentSelectionCount = selection.size(); |
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int firstDifference = 0; |
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if(path == null) { |
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path = new MenuElement[0]; |
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} |
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if (DEBUG) { |
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System.out.print("Previous: "); printMenuElementArray(getSelectedPath()); |
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System.out.print("New: "); printMenuElementArray(path); |
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} |
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for(i=0,c=path.length;i<c;i++) { |
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if(i < currentSelectionCount && (MenuElement)selection.elementAt(i) == path[i]) |
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firstDifference++; |
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else |
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break; |
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} |
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for(i=currentSelectionCount - 1 ; i >= firstDifference ; i--) { |
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MenuElement me = (MenuElement)selection.elementAt(i); |
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selection.removeElementAt(i); |
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me.menuSelectionChanged(false); |
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} |
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for(i = firstDifference, c = path.length ; i < c ; i++) { |
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if (path[i] != null) { |
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selection.addElement(path[i]); |
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path[i].menuSelectionChanged(true); |
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} |
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} |
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fireStateChanged(); |
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} |
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/** |
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* Returns the path to the currently selected menu item |
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* |
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* @return an array of MenuElement objects representing the selected path |
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*/ |
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public MenuElement[] getSelectedPath() { |
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MenuElement res[] = new MenuElement[selection.size()]; |
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int i,c; |
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for(i=0,c=selection.size();i<c;i++) |
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res[i] = (MenuElement) selection.elementAt(i); |
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return res; |
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} |
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/** |
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* Tell the menu selection to close and unselect all the menu components. Call this method |
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* when a choice has been made |
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*/ |
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public void clearSelectedPath() { |
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if (selection.size() > 0) { |
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setSelectedPath(null); |
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} |
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} |
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/** |
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* Adds a ChangeListener to the button. |
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* |
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* @param l the listener to add |
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*/ |
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public void addChangeListener(ChangeListener l) { |
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listenerList.add(ChangeListener.class, l); |
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} |
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/** |
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* Removes a ChangeListener from the button. |
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* |
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* @param l the listener to remove |
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*/ |
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public void removeChangeListener(ChangeListener l) { |
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listenerList.remove(ChangeListener.class, l); |
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} |
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/** |
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* Returns an array of all the <code>ChangeListener</code>s added |
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* to this MenuSelectionManager with addChangeListener(). |
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* |
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* @return all of the <code>ChangeListener</code>s added or an empty |
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* array if no listeners have been added |
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* @since 1.4 |
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*/ |
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public ChangeListener[] getChangeListeners() { |
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return (ChangeListener[])listenerList.getListeners( |
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ChangeListener.class); |
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} |
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/** |
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* Notifies all listeners that have registered interest for |
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* notification on this event type. The event instance |
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* is created lazily. |
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* |
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* @see EventListenerList |
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*/ |
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protected void fireStateChanged() { |
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// Guaranteed to return a non-null array |
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Object[] listeners = listenerList.getListenerList(); |
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// Process the listeners last to first, notifying |
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// those that are interested in this event |
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for (int i = listeners.length-2; i>=0; i-=2) { |
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if (listeners[i]==ChangeListener.class) { |
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// Lazily create the event: |
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if (changeEvent == null) |
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changeEvent = new ChangeEvent(this); |
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((ChangeListener)listeners[i+1]).stateChanged(changeEvent); |
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} |
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} |
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} |
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/** |
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* When a MenuElement receives an event from a MouseListener, it should never process the event |
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* directly. Instead all MenuElements should call this method with the event. |
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* |
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* @param event a MouseEvent object |
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*/ |
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public void processMouseEvent(MouseEvent event) { |
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int screenX,screenY; |
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Point p; |
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int i,c,j,d; |
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Component mc; |
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Rectangle r2; |
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int cWidth,cHeight; |
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MenuElement menuElement; |
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MenuElement subElements[]; |
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MenuElement path[]; |
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Vector tmp; |
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int selectionSize; |
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p = event.getPoint(); |
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459
d555ba8bbec1
6690791: Even more ClassCasetException with TrayIcon
mlapshin
parents:
2
diff
changeset
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Component source = event.getComponent(); |
2 | 222 |
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459
d555ba8bbec1
6690791: Even more ClassCasetException with TrayIcon
mlapshin
parents:
2
diff
changeset
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if ((source != null) && !source.isShowing()) { |
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// This can happen if a mouseReleased removes the |
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// containing component -- bug 4146684 |
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return; |
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} |
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int type = event.getID(); |
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int modifiers = event.getModifiers(); |
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// 4188027: drag enter/exit added in JDK 1.1.7A, JDK1.2 |
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if ((type==MouseEvent.MOUSE_ENTERED|| |
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type==MouseEvent.MOUSE_EXITED) |
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&& ((modifiers & (InputEvent.BUTTON1_MASK | |
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InputEvent.BUTTON2_MASK | InputEvent.BUTTON3_MASK)) !=0 )) { |
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return; |
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} |
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459
d555ba8bbec1
6690791: Even more ClassCasetException with TrayIcon
mlapshin
parents:
2
diff
changeset
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if (source != null) { |
d555ba8bbec1
6690791: Even more ClassCasetException with TrayIcon
mlapshin
parents:
2
diff
changeset
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SwingUtilities.convertPointToScreen(p, source); |
d555ba8bbec1
6690791: Even more ClassCasetException with TrayIcon
mlapshin
parents:
2
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changeset
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} |
2 | 242 |
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screenX = p.x; |
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screenY = p.y; |
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tmp = (Vector)selection.clone(); |
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selectionSize = tmp.size(); |
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boolean success = false; |
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for (i=selectionSize - 1;i >= 0 && success == false; i--) { |
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menuElement = (MenuElement) tmp.elementAt(i); |
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subElements = menuElement.getSubElements(); |
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path = null; |
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for (j = 0, d = subElements.length;j < d && success == false; j++) { |
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if (subElements[j] == null) |
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continue; |
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mc = subElements[j].getComponent(); |
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if(!mc.isShowing()) |
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continue; |
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if(mc instanceof JComponent) { |
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cWidth = ((JComponent)mc).getWidth(); |
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cHeight = ((JComponent)mc).getHeight(); |
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} else { |
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r2 = mc.getBounds(); |
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cWidth = r2.width; |
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cHeight = r2.height; |
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} |
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p.x = screenX; |
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p.y = screenY; |
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SwingUtilities.convertPointFromScreen(p,mc); |
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/** Send the event to visible menu element if menu element currently in |
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* the selected path or contains the event location |
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*/ |
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if( |
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(p.x >= 0 && p.x < cWidth && p.y >= 0 && p.y < cHeight)) { |
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int k; |
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if(path == null) { |
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path = new MenuElement[i+2]; |
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for(k=0;k<=i;k++) |
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path[k] = (MenuElement)tmp.elementAt(k); |
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} |
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path[i+1] = subElements[j]; |
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MenuElement currentSelection[] = getSelectedPath(); |
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// Enter/exit detection -- needs tuning... |
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if (currentSelection[currentSelection.length-1] != |
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path[i+1] && |
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(currentSelection.length < 2 || |
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currentSelection[currentSelection.length-2] != |
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path[i+1])) { |
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Component oldMC = currentSelection[currentSelection.length-1].getComponent(); |
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MouseEvent exitEvent = new MouseEvent(oldMC, MouseEvent.MOUSE_EXITED, |
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event.getWhen(), |
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event.getModifiers(), p.x, p.y, |
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event.getXOnScreen(), |
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event.getYOnScreen(), |
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event.getClickCount(), |
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event.isPopupTrigger(), |
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MouseEvent.NOBUTTON); |
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currentSelection[currentSelection.length-1]. |
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processMouseEvent(exitEvent, path, this); |
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MouseEvent enterEvent = new MouseEvent(mc, |
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MouseEvent.MOUSE_ENTERED, |
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event.getWhen(), |
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event.getModifiers(), p.x, p.y, |
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event.getXOnScreen(), |
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event.getYOnScreen(), |
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event.getClickCount(), |
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event.isPopupTrigger(), |
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MouseEvent.NOBUTTON); |
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subElements[j].processMouseEvent(enterEvent, path, this); |
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} |
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MouseEvent mouseEvent = new MouseEvent(mc, event.getID(),event. getWhen(), |
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event.getModifiers(), p.x, p.y, |
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event.getXOnScreen(), |
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event.getYOnScreen(), |
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event.getClickCount(), |
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event.isPopupTrigger(), |
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MouseEvent.NOBUTTON); |
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subElements[j].processMouseEvent(mouseEvent, path, this); |
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success = true; |
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event.consume(); |
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} |
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} |
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} |
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} |
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330 |
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331 |
private void printMenuElementArray(MenuElement path[]) { |
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printMenuElementArray(path, false); |
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} |
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334 |
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private void printMenuElementArray(MenuElement path[], boolean dumpStack) { |
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System.out.println("Path is("); |
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337 |
int i, j; |
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338 |
for(i=0,j=path.length; i<j ;i++){ |
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339 |
for (int k=0; k<=i; k++) |
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340 |
System.out.print(" "); |
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341 |
MenuElement me = (MenuElement) path[i]; |
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342 |
if(me instanceof JMenuItem) { |
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343 |
System.out.println(((JMenuItem)me).getText() + ", "); |
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} else if (me instanceof JMenuBar) { |
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System.out.println("JMenuBar, "); |
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} else if(me instanceof JPopupMenu) { |
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System.out.println("JPopupMenu, "); |
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348 |
} else if (me == null) { |
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349 |
System.out.println("NULL , "); |
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350 |
} else { |
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351 |
System.out.println("" + me + ", "); |
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352 |
} |
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353 |
} |
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354 |
System.out.println(")"); |
|
355 |
||
356 |
if (dumpStack == true) |
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357 |
Thread.dumpStack(); |
|
358 |
} |
|
359 |
||
360 |
/** |
|
361 |
* Returns the component in the currently selected path |
|
362 |
* which contains sourcePoint. |
|
363 |
* |
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364 |
* @param source The component in whose coordinate space sourcePoint |
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365 |
* is given |
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366 |
* @param sourcePoint The point which is being tested |
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367 |
* @return The component in the currently selected path which |
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368 |
* contains sourcePoint (relative to the source component's |
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* coordinate space. If sourcePoint is not inside a component |
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370 |
* on the currently selected path, null is returned. |
|
371 |
*/ |
|
372 |
public Component componentForPoint(Component source, Point sourcePoint) { |
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373 |
int screenX,screenY; |
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374 |
Point p = sourcePoint; |
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375 |
int i,c,j,d; |
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376 |
Component mc; |
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377 |
Rectangle r2; |
|
378 |
int cWidth,cHeight; |
|
379 |
MenuElement menuElement; |
|
380 |
MenuElement subElements[]; |
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381 |
Vector tmp; |
|
382 |
int selectionSize; |
|
383 |
||
384 |
SwingUtilities.convertPointToScreen(p,source); |
|
385 |
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386 |
screenX = p.x; |
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387 |
screenY = p.y; |
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388 |
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389 |
tmp = (Vector)selection.clone(); |
|
390 |
selectionSize = tmp.size(); |
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391 |
for(i=selectionSize - 1 ; i >= 0 ; i--) { |
|
392 |
menuElement = (MenuElement) tmp.elementAt(i); |
|
393 |
subElements = menuElement.getSubElements(); |
|
394 |
||
395 |
for(j = 0, d = subElements.length ; j < d ; j++) { |
|
396 |
if (subElements[j] == null) |
|
397 |
continue; |
|
398 |
mc = subElements[j].getComponent(); |
|
399 |
if(!mc.isShowing()) |
|
400 |
continue; |
|
401 |
if(mc instanceof JComponent) { |
|
402 |
cWidth = ((JComponent)mc).getWidth(); |
|
403 |
cHeight = ((JComponent)mc).getHeight(); |
|
404 |
} else { |
|
405 |
r2 = mc.getBounds(); |
|
406 |
cWidth = r2.width; |
|
407 |
cHeight = r2.height; |
|
408 |
} |
|
409 |
p.x = screenX; |
|
410 |
p.y = screenY; |
|
411 |
SwingUtilities.convertPointFromScreen(p,mc); |
|
412 |
||
413 |
/** Return the deepest component on the selection |
|
414 |
* path in whose bounds the event's point occurs |
|
415 |
*/ |
|
416 |
if (p.x >= 0 && p.x < cWidth && p.y >= 0 && p.y < cHeight) { |
|
417 |
return mc; |
|
418 |
} |
|
419 |
} |
|
420 |
} |
|
421 |
return null; |
|
422 |
} |
|
423 |
||
424 |
/** |
|
425 |
* When a MenuElement receives an event from a KeyListener, it should never process the event |
|
426 |
* directly. Instead all MenuElements should call this method with the event. |
|
427 |
* |
|
428 |
* @param e a KeyEvent object |
|
429 |
*/ |
|
430 |
public void processKeyEvent(KeyEvent e) { |
|
431 |
MenuElement[] sel2 = new MenuElement[0]; |
|
432 |
sel2 = (MenuElement[])selection.toArray(sel2); |
|
433 |
int selSize = sel2.length; |
|
434 |
MenuElement[] path; |
|
435 |
||
436 |
if (selSize < 1) { |
|
437 |
return; |
|
438 |
} |
|
439 |
||
440 |
for (int i=selSize-1; i>=0; i--) { |
|
441 |
MenuElement elem = sel2[i]; |
|
442 |
MenuElement[] subs = elem.getSubElements(); |
|
443 |
path = null; |
|
444 |
||
445 |
for (int j=0; j<subs.length; j++) { |
|
446 |
if (subs[j] == null || !subs[j].getComponent().isShowing() |
|
447 |
|| !subs[j].getComponent().isEnabled()) { |
|
448 |
continue; |
|
449 |
} |
|
450 |
||
451 |
if(path == null) { |
|
452 |
path = new MenuElement[i+2]; |
|
453 |
System.arraycopy(sel2, 0, path, 0, i+1); |
|
454 |
} |
|
455 |
path[i+1] = subs[j]; |
|
456 |
subs[j].processKeyEvent(e, path, this); |
|
457 |
if (e.isConsumed()) { |
|
458 |
return; |
|
459 |
} |
|
460 |
} |
|
461 |
} |
|
462 |
||
463 |
// finally dispatch event to the first component in path |
|
464 |
path = new MenuElement[1]; |
|
465 |
path[0] = sel2[0]; |
|
466 |
path[0].processKeyEvent(e, path, this); |
|
467 |
if (e.isConsumed()) { |
|
468 |
return; |
|
469 |
} |
|
470 |
} |
|
471 |
||
472 |
/** |
|
473 |
* Return true if c is part of the currently used menu |
|
474 |
*/ |
|
475 |
public boolean isComponentPartOfCurrentMenu(Component c) { |
|
476 |
if(selection.size() > 0) { |
|
477 |
MenuElement me = (MenuElement)selection.elementAt(0); |
|
478 |
return isComponentPartOfCurrentMenu(me,c); |
|
479 |
} else |
|
480 |
return false; |
|
481 |
} |
|
482 |
||
483 |
private boolean isComponentPartOfCurrentMenu(MenuElement root,Component c) { |
|
484 |
MenuElement children[]; |
|
485 |
int i,d; |
|
486 |
||
487 |
if (root == null) |
|
488 |
return false; |
|
489 |
||
490 |
if(root.getComponent() == c) |
|
491 |
return true; |
|
492 |
else { |
|
493 |
children = root.getSubElements(); |
|
494 |
for(i=0,d=children.length;i<d;i++) { |
|
495 |
if(isComponentPartOfCurrentMenu(children[i],c)) |
|
496 |
return true; |
|
497 |
} |
|
498 |
} |
|
499 |
return false; |
|
500 |
} |
|
501 |
} |