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| java.lang.Object
 java.awt.MenuComponent
java.awt.MenuItem
java.awt.Menu
java.awt.PopupMenu
| PopupMenu | | public class PopupMenu extends Menu (Code) | | 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.
version:
1.25 08/19/02
author:
Amy Fowler |
| Constructor Summary | |
| public | PopupMenu()
Creates a new popup menu. | | public | PopupMenu(String label)
Creates a new popup menu with the specified name. |
| Method Summary | |
| public void | addNotify()
Creates the popup menu's peer. | | String | constructComponentName()
Construct a name for this MenuComponent. | | 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. |
| nameCounter | | static int nameCounter(Code) | | |
| PopupMenu | | public PopupMenu()(Code) | | Creates a new popup menu.
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| PopupMenu | | public PopupMenu(String label)(Code) | | Creates a new popup menu with the specified name.
Parameters:
label - a non-null string specifying the popup menu's label |
| addNotify | | public void addNotify()(Code) | | Creates the popup menu's peer. The peer allows us to change the
appearance of the popup menu without changing any of the popup menu's
functionality.
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| constructComponentName | | String constructComponentName()(Code) | | Construct a name for this MenuComponent. Called by getName() when
the name is null.
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| show | | public void show(Component origin, int x, int y)(Code) | | 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 space
Parameters:
x - the x coordinate position to popup the menu
Parameters:
y - the y coordinate position to popup the menu
exception:
IllegalArgumentException - if this PopupMenu has a non-Component parent |
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