diff options
Diffstat (limited to 'java/awt/MenuBar.java')
| -rw-r--r-- | java/awt/MenuBar.java | 575 |
1 files changed, 261 insertions, 314 deletions
diff --git a/java/awt/MenuBar.java b/java/awt/MenuBar.java index 97156aefe..3c6b91564 100644 --- a/java/awt/MenuBar.java +++ b/java/awt/MenuBar.java @@ -1,5 +1,6 @@ /* MenuBar.java -- An AWT menu bar class - Copyright (C) 1999, 2000, 2001, 2002, 2004, 2005 Free Software Foundation, Inc. + Copyright (C) 1999, 2000, 2001, 2002, 2004, 2005, 2006 + Free Software Foundation, Inc. This file is part of GNU Classpath. @@ -39,7 +40,6 @@ exception statement from your version. */ package java.awt; import java.awt.peer.MenuBarPeer; -import java.awt.peer.MenuComponentPeer; import java.io.Serializable; import java.util.Enumeration; @@ -60,364 +60,311 @@ public class MenuBar extends MenuComponent implements MenuContainer, Serializable, Accessible { -/* - * Static Variables - */ +//Serialization Constant + private static final long serialVersionUID = -4930327919388951260L; -// Serialization Constant -private static final long serialVersionUID = -4930327919388951260L; - -/*************************************************************************/ - -/* - * Instance Variables - */ - -/** - * @serial The menu used for providing help information - */ -private Menu helpMenu; + /** + * @serial The menu used for providing help information + */ + private Menu helpMenu; -/** - * @serial The menus contained in this menu bar. - */ -private Vector menus = new Vector(); + /** + * @serial The menus contained in this menu bar. + */ + private Vector menus = new Vector(); /** - * The accessible context for this component. + * Initializes a new instance of <code>MenuBar</code>. * - * @see #getAccessibleContext() - * @serial ignored. + * @throws HeadlessException if GraphicsEnvironment.isHeadless() is true */ - private transient AccessibleContext accessibleContext; - -/*************************************************************************/ - -/* - * Constructors - */ - -/** - * Initializes a new instance of <code>MenuBar</code>. - * - * @exception HeadlessException If GraphicsEnvironment.isHeadless() is true. - */ -public -MenuBar() -{ - if (GraphicsEnvironment.isHeadless()) - throw new HeadlessException (); -} - -/*************************************************************************/ - -/* - * Instance Methods - */ - -/** - * Returns the help menu for this menu bar. This may be <code>null</code>. - * - * @return The help menu for this menu bar. - */ -public Menu -getHelpMenu() -{ - return(helpMenu); -} - -/*************************************************************************/ - -/** - * Sets the help menu for this menu bar. - * - * @param menu The new help menu for this menu bar. - */ -public synchronized void -setHelpMenu(Menu menu) -{ - if (helpMenu != null) - { - helpMenu.removeNotify (); - helpMenu.parent = null; - } - helpMenu = menu; - - if (menu.parent != null) - menu.parent.remove (menu); - menu.parent = this; - - MenuBarPeer peer = (MenuBarPeer) getPeer (); - if (peer != null) - { - menu.addNotify(); - peer.addHelpMenu (menu); - } -} - -/*************************************************************************/ - -/** Add a menu to this MenuBar. If the menu has already has a - * parent, it is first removed from its old parent before being - * added. - * - * @param menu The menu to add. - * - * @return The menu that was added. - */ -public synchronized Menu -add(Menu menu) -{ - if (menu.parent != null) - menu.parent.remove (menu); - - menu.parent = this; - menus.addElement(menu); - - if (peer != null) - { - menu.addNotify(); - } - - return(menu); -} - -/*************************************************************************/ + public MenuBar() + { + if (GraphicsEnvironment.isHeadless()) + throw new HeadlessException(); + } -/** - * Removes the menu at the specified index. - * - * @param index The index of the menu to remove from the menu bar. - */ -public synchronized void -remove(int index) -{ - Menu m = (Menu) menus.get (index); - menus.remove (index); - m.removeNotify (); - m.parent = null; + /** + * Returns the help menu for this menu bar. This may be <code>null</code>. + * + * @return the help menu for this menu bar + */ + public Menu getHelpMenu() + { + return helpMenu; + } - if (peer != null) - { - MenuBarPeer mp = (MenuBarPeer) peer; - mp.delMenu (index); - } -} + /** + * Sets the help menu for this menu bar. + * + * @param menu the new help menu for this menu bar + */ + public synchronized void setHelpMenu(Menu menu) + { + MenuBarPeer myPeer = (MenuBarPeer) getPeer (); + + if (helpMenu != null) + { + if (myPeer != null) + helpMenu.removeNotify(); + helpMenu.setParent(null); + } + helpMenu = menu; + + MenuContainer parent = menu.getParent(); + if (parent != null) + parent.remove(menu); + menu.setParent(this); + + if (myPeer != null) + { + menu.addNotify(); + myPeer.addHelpMenu(menu); + } + } -/*************************************************************************/ + /** + * Add a menu to this MenuBar. If the menu has already has a + * parent, it is first removed from its old parent before being + * added. + * + * @param menu the menu to add + * + * @return the menu that was added + */ + public synchronized Menu add(Menu menu) + { + MenuBarPeer myPeer = (MenuBarPeer) getPeer (); -/** - * Removes the specified menu from the menu bar. - * - * @param menu The menu to remove from the menu bar. - */ -public void -remove(MenuComponent menu) -{ - int index = menus.indexOf(menu); - if (index == -1) - return; + MenuContainer parent = menu.getParent(); + if (parent != null) + parent.remove(menu); - remove(index); -} + menus.addElement(menu); + menu.setParent(this); -/*************************************************************************/ + if (myPeer != null) + { + menu.addNotify(); + myPeer.addMenu(menu); + } + return menu; + } -/** - * Returns the number of elements in this menu bar. - * - * @return The number of elements in the menu bar. - */ -public int -getMenuCount() -{ - return countMenus (); -} + /** + * Removes the menu at the specified index. + * + * @param index the index of the menu to remove from the menu bar + */ + public synchronized void remove(int index) + { + Menu m = (Menu) menus.remove(index); + MenuBarPeer mp = (MenuBarPeer) getPeer(); -/*************************************************************************/ + if (mp != null) + m.removeNotify(); -/** - * Returns the number of elements in this menu bar. - * - * @return The number of elements in the menu bar. - * - * @deprecated This method is deprecated in favor of <code>getMenuCount()</code>. - */ -public int -countMenus() -{ - return menus.size () + (getHelpMenu () == null ? 0 : 1); -} + m.setParent(null); -/*************************************************************************/ + if (mp != null) + mp.delMenu(index); + } -/** - * Returns the menu at the specified index. - * - * @param index the index of the menu - * - * @return The requested menu. - * - * @exception ArrayIndexOutOfBoundsException If the index is not valid. - */ -public Menu -getMenu(int index) -{ - return((Menu)menus.elementAt(index)); -} + /** + * Removes the specified menu from the menu bar. + * + * @param menu the menu to remove from the menu bar + */ + public void remove(MenuComponent menu) + { + int index = menus.indexOf(menu); + if (index == -1) + return; -/*************************************************************************/ + remove(index); + } -/** - * Creates this object's native peer. - */ -public void -addNotify() -{ - if (getPeer() == null) - setPeer((MenuComponentPeer)getToolkit().createMenuBar(this)); - Enumeration e = menus.elements(); - while (e.hasMoreElements()) + /** + * Returns the number of elements in this menu bar. + * + * @return the number of elements in the menu bar + */ + public int getMenuCount() { - Menu mi = (Menu)e.nextElement(); - mi.addNotify(); + return countMenus(); } - if (helpMenu != null) + + /** + * Returns the number of elements in this menu bar. + * + * @return the number of elements in the menu bar + * + * @deprecated This method is deprecated in favor of + * <code>getMenuCount()</code>. + */ + public int countMenus() { - helpMenu.addNotify(); - ((MenuBarPeer) peer).addHelpMenu(helpMenu); + return menus.size() + (getHelpMenu() == null ? 0 : 1); } -} -/*************************************************************************/ - -/** - * Destroys this object's native peer. - */ -public void -removeNotify() -{ - Enumeration e = menus.elements(); - while (e.hasMoreElements()) + /** + * Returns the menu at the specified index. + * + * @param index the index of the menu + * + * @return the requested menu + * + * @throws ArrayIndexOutOfBoundsException if the index is not valid + */ + public Menu getMenu(int index) { - Menu mi = (Menu) e.nextElement(); - mi.removeNotify(); + return (Menu) menus.elementAt(index); } - super.removeNotify(); -} - -/*************************************************************************/ - -/** - * Returns a list of all shortcuts for the menus in this menu bar. - * - * @return A list of all shortcuts for the menus in this menu bar. - */ -public synchronized Enumeration<MenuShortcut> -shortcuts() -{ - Vector<MenuShortcut> shortcuts = new Vector<MenuShortcut>(); - Enumeration e = menus.elements(); - - while (e.hasMoreElements()) - { - Menu menu = (Menu)e.nextElement(); - if (menu.getShortcut() != null) - shortcuts.addElement(menu.getShortcut()); - } - return(shortcuts.elements()); -} + /** + * Creates this object's native peer. + */ + public void addNotify() + { + MenuBarPeer peer = (MenuBarPeer) getPeer(); + if (peer == null) + { + peer = getToolkit().createMenuBar(this); + setPeer(peer); + } + + Enumeration e = menus.elements(); + while (e.hasMoreElements()) + { + Menu mi = (Menu)e.nextElement(); + mi.addNotify(); + peer.addMenu(mi); + } + + if (helpMenu != null) + { + helpMenu.addNotify(); + peer.addHelpMenu(helpMenu); + } + } -/*************************************************************************/ + /** + * Destroys this object's native peer. + */ + public void removeNotify() + { + Enumeration e = menus.elements(); + while (e.hasMoreElements()) + { + Menu mi = (Menu) e.nextElement(); + mi.removeNotify(); + } + super.removeNotify(); + } -/** - * Returns the menu item for the specified shortcut, or <code>null</code> - * if no such item exists. - * - * @param shortcut The shortcut to return the menu item for. - * - * @return The menu item for the specified shortcut. - */ -public MenuItem -getShortcutMenuItem(MenuShortcut shortcut) -{ - Enumeration e = menus.elements(); + /** + * Returns a list of all shortcuts for the menus in this menu bar. + * + * @return a list of all shortcuts for the menus in this menu bar + */ + public synchronized Enumeration shortcuts() + { + Vector shortcuts = new Vector(); + Enumeration e = menus.elements(); - while (e.hasMoreElements()) - { - Menu menu = (Menu)e.nextElement(); - MenuShortcut s = menu.getShortcut(); - if ((s != null) && (s.equals(shortcut))) - return(menu); - } + while (e.hasMoreElements()) + { + Menu menu = (Menu)e.nextElement(); + if (menu.getShortcut() != null) + shortcuts.addElement(menu.getShortcut()); + } - return(null); -} + return shortcuts.elements(); + } -/*************************************************************************/ + /** + * Returns the menu item for the specified shortcut, or <code>null</code> + * if no such item exists. + * + * @param shortcut the shortcut to return the menu item for + * + * @return the menu item for the specified shortcut + */ + public MenuItem getShortcutMenuItem(MenuShortcut shortcut) + { + Enumeration e = menus.elements(); -/** - * Deletes the specified menu shortcut. - * - * @param shortcut The shortcut to delete. - */ -public void -deleteShortcut(MenuShortcut shortcut) -{ - MenuItem it; - // This is a slow implementation, but it probably doesn't matter. - while ((it = getShortcutMenuItem (shortcut)) != null) - it.deleteShortcut (); -} + while (e.hasMoreElements()) + { + Menu menu = (Menu) e.nextElement(); + MenuShortcut s = menu.getShortcut(); + if ((s != null) && s.equals(shortcut)) + return menu; + } -/** - * Gets the AccessibleContext associated with this <code>MenuBar</code>. - * The context is created, if necessary. - * - * @return the associated context - */ -public AccessibleContext getAccessibleContext() -{ - /* Create the context if this is the first request */ - if (accessibleContext == null) - accessibleContext = new AccessibleAWTMenuBar(); - return accessibleContext; -} + return null; + } -/** - * This class provides accessibility support for AWT menu bars. - * - * @author Andrew John Hughes (gnu_andrew@member.fsf.org) - */ -protected class AccessibleAWTMenuBar - extends AccessibleAWTMenuComponent -{ - /** - * Compatible with JDK 1.4.2 revision 5 + * Deletes the specified menu shortcut. + * + * @param shortcut the shortcut to delete */ - private static final long serialVersionUID = -8577604491830083815L; + public void deleteShortcut(MenuShortcut shortcut) + { + MenuItem it; + // This is a slow implementation, but it probably doesn't matter. + while ((it = getShortcutMenuItem (shortcut)) != null) + it.deleteShortcut(); + } /** - * This is the default constructor, which simply calls the default - * constructor of the superclass. + * Gets the AccessibleContext associated with this <code>MenuBar</code>. + * The context is created, if necessary. + * + * @return the associated context */ - protected AccessibleAWTMenuBar() + public AccessibleContext getAccessibleContext() { - super(); + // Create the context if this is the first request. + if (accessibleContext == null) + accessibleContext = new AccessibleAWTMenuBar(); + return accessibleContext; } /** - * Returns the accessible role relating to the menu bar. + * This class provides accessibility support for AWT menu bars. * - * @return <code>AccessibleRole.MENU_BAR</code>. + * @author Andrew John Hughes (gnu_andrew@member.fsf.org) */ - public AccessibleRole getAccessibleRole() + protected class AccessibleAWTMenuBar + extends AccessibleAWTMenuComponent { - return AccessibleRole.MENU_BAR; - } + + /** + * Compatible with JDK 1.4.2 revision 5 + */ + private static final long serialVersionUID = -8577604491830083815L; + + /** + * This is the default constructor, which simply calls the default + * constructor of the superclass. + */ + protected AccessibleAWTMenuBar() + { + super(); + } -} // class AccessibleAWTMenuBar + /** + * Returns the accessible role relating to the menu bar. + * + * @return <code>AccessibleRole.MENU_BAR</code> + */ + public AccessibleRole getAccessibleRole() + { + return AccessibleRole.MENU_BAR; + } -} // class MenuBar + } + +} |