Use is subject to License Terms. Your use of this web site or any of its content or software indicates your agreement to be bound by these License Terms.
Copyright © 2006 Sun Microsystems, Inc. All rights reserved.
java.awt
Class PopupMenu
java.lang.Object
java.awt.MenuComponent
java.awt.MenuItem
java.awt.Menu
java.awt.PopupMenu
- All Implemented Interfaces:
- MenuContainer, Serializable
- public class PopupMenu
- extends Menu
A class that implements a menu which can be dynamically popped up
at a specified position within a component.
As the inheritance hierarchy implies, a PopupMenu
can be used anywhere a Menu
can be used.
However, if you use a PopupMenu
like a Menu
(e.g., you add it to a MenuBar
), then you cannot
call show
on that PopupMenu
.
- See Also:
- Serialized Form
Constructor Summary |
PopupMenu()
Creates a new popup menu with an empty name. |
PopupMenu(String label)
Creates a new popup menu with the specified name. |
Method Summary |
void |
show(Component origin,
int x,
int y)
Shows the popup menu at the x, y position relative to an origin
component. |
Methods inherited from class java.awt.Menu |
add, add, addSeparator, countItems, getItem, getItemCount, insert, insert, insertSeparator, isTearOff, paramString, remove, remove, removeAll |
Methods inherited from class java.awt.MenuItem |
addActionListener, addNotify, deleteShortcut, disable, disableEvents, enable, enable, enableEvents, getActionCommand, getActionListeners, getLabel, getShortcut, isEnabled, processActionEvent, processEvent, removeActionListener, setActionCommand, setEnabled, setLabel, setShortcut |
PopupMenu
public PopupMenu()
throws HeadlessException
- Creates a new popup menu with an empty name.
- Throws:
HeadlessException
- if GraphicsEnvironment.isHeadless()
returns true.- See Also:
GraphicsEnvironment.isHeadless()
PopupMenu
public PopupMenu(String label)
throws HeadlessException
- Creates a new popup menu with the specified name.
- Parameters:
label
- a non-null
string specifying
the popup menu's label
- Throws:
HeadlessException
- if GraphicsEnvironment.isHeadless()
returns true.- See Also:
GraphicsEnvironment.isHeadless()
show
public void show(Component origin,
int x,
int y)
- Shows the popup menu at the x, y position relative to an origin
component.
The origin component must be contained within the component
hierarchy of the popup menu's parent. Both the origin and the parent
must be showing on the screen for this method to be valid.
If this PopupMenu
is being used as a Menu
(i.e., it has a non-Component
parent),
then you cannot call this method on the PopupMenu
.
- Parameters:
origin
- the component which defines the coordinate spacex
- the x coordinate position to popup the menuy
- the y coordinate position to popup the menu
- Throws:
NullPointerException
- if the parent is null
IllegalArgumentException
- if this PopupMenu
has a non-Component
parent
IllegalArgumentException
- if the origin is not in the
parent's heirarchy
RuntimeException
- if the parent is not showing on screen
Copyright © 2006 Sun Microsystems, Inc. All rights reserved. Use is subject to License Terms. Your use of this web site or any of its content or software indicates your agreement to be bound by these License Terms.
For more information, please consult the JSR 216 specification.