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JDK 1.1 Source Code Directory
JDK 1.1 source code directory contains Java source code for JDK 1.1 core classes:
"C:\fyicenter\jdk-1.1.8\src".
Here is the list of Java classes of the JDK 1.1 source code:
✍: FYIcenter
⏎ java/awt/MenuItem.java
/* * @(#)MenuItem.java 1.50 01/12/10 * * Copyright 2002 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ package java.awt; import java.awt.peer.MenuItemPeer; import java.awt.event.*; import java.io.ObjectOutputStream; import java.io.ObjectInputStream; import java.io.IOException; /** * All items in a menu must belong to the class * <code>MenuItem</code>, or one of its subclasses. * <p> * The default <code>MenuItem</code> object embodies * a simple labeled menu item. * <p> * This picture of a menu bar shows five menu items: * <IMG SRC="images-awt/MenuBar-1.gif" * ALIGN=CENTER HSPACE=10 VSPACE=7> * <br CLEAR=LEFT> * The first two items are simple menu items, labeled * <code>"Basic"</code> and <code>"Simple"</code>. * Following these two items is a separator, which is itself * a menu item, created with the label <code>"-"</code>. * Next is an instance of <code>CheckboxMenuItem</code> * labeled <code>"Check"</code>. The final menu item is a * submenu labeled <code>"More Examples"</code>, * and this submenu is an instance of <code>Menu</code>. * <p> * When a menu item is selected, AWT sends an action event to * the menu item. Since the event is an * instance of <code>ActionEvent</code>, the <code>processEvent</code> * method examines the event and passes it along to * <code>processActionEvent</code>. The latter method redirects the * event to any <code>ActionListener</code> objects that have * registered an interest in action events generated by this * menu item. * <P> * Note that the subclass <code>Menu</code> overrides this behavior and * does not send any event to the frame until one of its subitems is * selected. * * @version 1.50, 12/10/01 * @author Sami Shaio */ public class MenuItem extends MenuComponent { boolean enabled = true; String label; String actionCommand; // The eventMask is ONLY set by subclasses via enableEvents. // The mask should NOT be set when listeners are registered // so that we can distinguish the difference between when // listeners request events and subclasses request them. long eventMask; transient ActionListener actionListener; private MenuShortcut shortcut = null; private static final String base = "menuitem"; private static int nameCounter = 0; /* * JDK 1.1 serialVersionUID */ private static final long serialVersionUID = -21757335363267194L; /** * Constructs a new MenuItem with an empty label and no keyboard * shortcut. * @since JDK1.1 */ public MenuItem() { this("", null); } /** * Constructs a new MenuItem with the specified label * and no keyboard shortcut. Note that use of "-" in * a label is reserved to indicate a separator between * menu items. By default, all menu items except for * separators are enabled. * @param label the label for this menu item. * @since JDK1.0 */ public MenuItem(String label) { this(label, null); } /** * Create a menu item with an associated keyboard shortcut. * Note that use of "-" in a label is reserved to indicate * a separator between menu items. By default, all menu * items except for separators are enabled. * @param label the label for this menu item. * @param s the instance of <code>MenuShortcut</code> * associated with this menu item. * @since JDK1.1 */ public MenuItem(String label, MenuShortcut s) { this.label = label; this.shortcut = s; } /** * Construct a name for this MenuComponent. Called by getName() when * the name is null. */ String constructComponentName() { return base + nameCounter++; } /** * Creates the menu item's peer. The peer allows us to modify the * appearance of the menu item without changing its functionality. */ public void addNotify() { synchronized (getTreeLock()) { if (peer == null) { peer = Toolkit.getDefaultToolkit().createMenuItem(this); } } } /** * Gets the label for this menu item. * @return the label of this menu item, or <code>null</code> if this menu item has no label. * @see java.awt.MenuItem#setLabel * @since JDK1.0 */ public String getLabel() { return label; } /** * Sets the label for this menu item to the specified label. * @param label the new label, or <code>null</code> for no label. * @see java.awt.MenuItem#getLabel * @since JDK1.0 */ public synchronized void setLabel(String label) { this.label = label; MenuItemPeer peer = (MenuItemPeer)this.peer; if (peer != null) { peer.setLabel(label); } } /** * Checks whether this menu item is enabled. * @see java.awt.MenuItem#setEnabled * @since JDK1.0 */ public boolean isEnabled() { return enabled; } /** * Sets whether or not this menu item can be chosen. * @param b if <code>true</code>, enables this menu item; * if <code>false</code>, disables it. * @see java.awt.MenuItem#isEnabled * @since JDK1.1 */ public synchronized void setEnabled(boolean b) { enable(b); } /** * @deprecated As of JDK version 1.1, * replaced by <code>setEnabled(boolean)</code>. */ public synchronized void enable() { enabled = true; MenuItemPeer peer = (MenuItemPeer)this.peer; if (peer != null) { peer.enable(); } } /** * @deprecated As of JDK version 1.1, * replaced by <code>setEnabled(boolean)</code>. */ public void enable(boolean b) { if (b) { enable(); } else { disable(); } } /** * @deprecated As of JDK version 1.1, * replaced by <code>setEnabled(boolean)</code>. */ public synchronized void disable() { enabled = false; MenuItemPeer peer = (MenuItemPeer)this.peer; if (peer != null) { peer.disable(); } } /** * Get the <code>MenuShortcut</code> object associated with this * menu item, * @return the menu shortcut associated with this menu item, * or <code>null</code> if none has been specified. * @see java.awt.MenuItem#setShortcut * @since JDK1.1 */ public MenuShortcut getShortcut() { return shortcut; } /** * Set the <code>MenuShortcut</code> object associated with this * menu item. If a menu shortcut is already associated with * this menu item, it is replaced. * @param s the menu shortcut to associate * with this menu item. * @see java.awt.MenuItem#getShortcut * @since JDK1.1 */ public void setShortcut(MenuShortcut s) { shortcut = s; MenuItemPeer peer = (MenuItemPeer)this.peer; if (peer != null) { peer.setLabel(label); } } /** * Delete any <code>MenuShortcut</code> object associated * with this menu item. * @since JDK1.1 */ public void deleteShortcut() { shortcut = null; MenuItemPeer peer = (MenuItemPeer)this.peer; if (peer != null) { peer.setLabel(label); } } /* * Delete a matching MenuShortcut associated with this MenuItem. * Used when iterating Menus. */ void deleteShortcut(MenuShortcut s) { if (s.equals(shortcut)) { shortcut = null; MenuItemPeer peer = (MenuItemPeer)this.peer; if (peer != null) { peer.setLabel(label); } } } /* * Post an ActionEvent to the target (on * keydown). Returns true if there is an associated * shortcut. */ boolean handleShortcut(KeyEvent e) { MenuShortcut s = new MenuShortcut(e.getKeyCode(), (e.getModifiers() & InputEvent.SHIFT_MASK) > 0); if (s.equals(shortcut) && enabled) { // MenuShortcut match -- issue an event on keydown. if (e.getID() == KeyEvent.KEY_PRESSED) { Toolkit.getEventQueue().postEvent( new ActionEvent(this, ActionEvent.ACTION_PERFORMED, actionCommand)); } else { // silently eat key release. } return true; } return false; } MenuItem getShortcutMenuItem(MenuShortcut s) { return (s.equals(shortcut)) ? this : null; } /** * Enables event delivery to this menu item for events * to be defined by the specified event mask parameter * <p> * Since event types are automatically enabled when a listener for * that type is added to the menu item, this method only needs * to be invoked by subclasses of <code>MenuItem</code> which desire to * have the specified event types delivered to <code>processEvent</code> * regardless of whether a listener is registered. * @param eventsToEnable the event mask defining the event types. * @see java.awt.MenuItem#processEvent * @see java.awt.MenuItem#disableEvents * @see java.awt.Component#enableEvents * @since JDK1.1 */ protected final void enableEvents(long eventsToEnable) { eventMask |= eventsToEnable; newEventsOnly = true; } /** * Disables event delivery to this menu item for events * defined by the specified event mask parameter. * @param eventsToDisable the event mask defining the event types. * @see java.awt.MenuItem#processEvent * @see java.awt.MenuItem#enableEvents * @see java.awt.Component#disableEvents * @since JDK1.1 */ protected final void disableEvents(long eventsToDisable) { eventMask &= ~eventsToDisable; } /** * Sets the command name of the action event that is fired * by this menu item. * <p> * By default, the action command is set to the label of * the menu item. * @param command the action command to be set * for this menu item. * @see java.awt.MenuItem#getActionCommand * @since JDK1.1 */ public void setActionCommand(String command) { actionCommand = command; } /** * Gets the command name of the action event that is fired * by this menu item. * @see java.awt.MenuItem#setActionCommand * @since JDK1.1 */ public String getActionCommand() { return (actionCommand == null? label : actionCommand); } /** * Adds the specified action listener to receive action events * from this menu item. * @param l the action listener. * @see java.awt.event.ActionEvent * @see java.awt.event.ActionListener * @see java.awt.MenuItem#removeActionListener * @since JDK1.1 */ public synchronized void addActionListener(ActionListener l) { actionListener = AWTEventMulticaster.add(actionListener, l); newEventsOnly = true; } /** * Removes the specified action listener so it no longer receives * action events from this menu item. * @param l the action listener. * @see java.awt.event.ActionEvent * @see java.awt.event.ActionListener * @see java.awt.MenuItem#addActionListener * @since JDK1.1 */ public synchronized void removeActionListener(ActionListener l) { actionListener = AWTEventMulticaster.remove(actionListener, l); } /** * Processes events on this menu item. If the event is an * instance of <code>ActionEvent</code>, it invokes * <code>processActionEvent</code>, another method * defined by <code>MenuItem</code>. * <p> * Currently, menu items only support action events. * @param e the event. * @see java.awt.MenuItem#processActionEvent * @since JDK1.1 */ protected void processEvent(AWTEvent e) { if (e instanceof ActionEvent) { processActionEvent((ActionEvent)e); } } // REMIND: remove when filtering is done at lower level boolean eventEnabled(AWTEvent e) { if (e.id == ActionEvent.ACTION_PERFORMED) { if ((eventMask & AWTEvent.ACTION_EVENT_MASK) != 0 || actionListener != null) { return true; } return false; } return super.eventEnabled(e); } /** * Processes action events occurring on this menu item, * by dispatching them to any registered * <code>ActionListener</code> objects. * This method is not called unless action events are * enabled for this component. Action events are enabled * when one of the following occurs: * <p><ul> * <li>An <code>ActionListener</code> object is registered * via <code>addActionListener</code>. * <li>Action events are enabled via <code>enableEvents</code>. * </ul> * @param e the action event. * @see java.awt.event.ActionEvent * @see java.awt.event.ActionListener * @see java.awt.MenuItem#enableEvents * @since JDK1.1 */ protected void processActionEvent(ActionEvent e) { if (actionListener != null) { actionListener.actionPerformed(e); } } /** * Returns the parameter string representing the state of this menu * item. This string is useful for debugging. * @return the parameter string of this menu item. * @since JDK1.0 */ public String paramString() { String str = ",label=" + label; if (shortcut != null) { str += ",shortcut=" + shortcut; } return super.paramString() + str; } /* Serialization support. */ private int menuItemSerializedDataVersion = 1; private void writeObject(ObjectOutputStream s) throws IOException { s.defaultWriteObject(); AWTEventMulticaster.save(s, actionListenerK, actionListener); s.writeObject(null); } private void readObject(ObjectInputStream s) throws ClassNotFoundException, IOException { s.defaultReadObject(); Object keyOrNull; while(null != (keyOrNull = s.readObject())) { String key = ((String)keyOrNull).intern(); if (actionListenerK == key) addActionListener((ActionListener)(s.readObject())); else // skip value for unrecognized key s.readObject(); } } }
⏎ java/awt/MenuItem.java
Or download all of them as a single archive file:
File name: jdk-1.1.8-src.zip File size: 1574187 bytes Release date: 2018-11-16 Download
⇒ Backup JDK 1.1 Installation Directory
2018-11-17, 175089👍, 0💬
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