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JavaTM 2 Platform Std. Ed. v1.4.2 |
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java.lang.Objectjavax.swing.PopupFactory
PopupFactory, as the name implies, is used to obtain
instances of Popups. Popups are used to
display a Component above all other Components
in a particular containment hierarchy. The general contract is that
once you have obtained a Popup from a
PopupFactory, you must invoke hide on the
Popup. The typical usage is:
PopupFactory factory = PopupFactory.getSharedInstance(); Popup popup = factory.getPopup(owner, contents, x, y); popup.show(); ... popup.hide();
Popup| Constructor Summary | |
PopupFactory()
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| Method Summary | |
Popup |
getPopup(Component owner,
Component contents,
int x,
int y)
Creates a Popup for the Component owner
containing the Component contents. |
static PopupFactory |
getSharedInstance()
Returns the shared PopupFactory which can be used
to obtain Popups. |
static void |
setSharedInstance(PopupFactory factory)
Sets the AppContext specific PopupFactory. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public PopupFactory()
| Method Detail |
public static void setSharedInstance(PopupFactory factory)
AppContext specific PopupFactory.
This will throw an IllegalArgumentException if
factory is null.
factory - Shared PopupFactory
IllegalArgumentException - if factory is nullpublic static PopupFactory getSharedInstance()
PopupFactory which can be used
to obtain Popups.
public Popup getPopup(Component owner,
Component contents,
int x,
int y)
throws IllegalArgumentException
Popup for the Component owner
containing the Component contents. owner
is used to determine which Window the new
Popup will parent the Component the
Popup creates to. A null owner implies there
is no valid parent. x and
y specify the preferred initial location to place
the Popup at. Based on screen size, or other paramaters,
the Popup may not display at x and
y.
owner - Component mouse coordinates are relative to, may be nullcontents - Contents of the Popupx - Initial x screen coordinatey - Initial y screen coordinate
IllegalArgumentException - if contents is null
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JavaTM 2 Platform Std. Ed. v1.4.2 |
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Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.