javax.swing.JWindow
A JWindow is a container that can be displayed anywhere on the user's desktop. It does not have the title bar, window-management buttons, or other trimmings associated with a JFrame, but it is still a "first-class citizen" of the user's desktop, and can exist anywhere on it.
The JWindow component contains a JRootPane as its only child. The contentPane should be the parent of any children of the JWindow. As a convenience, the add, remove, and setLayout methods of this class are overridden, so that they delegate calls to the corresponding methods of the ContentPane. For example, you can add a child component to a window as follows:
window.add(child);
And the child will be added to the contentPane. The contentPane will always be non-null. Attempting to set it to null will cause the JWindow to throw an exception. The default contentPane will have a BorderLayout manager set on it. Refer to RootPaneContainer for details on adding, removing and setting the LayoutManager of a JWindow.
Please see the JRootPane documentation for a complete description of the contentPane, glassPane, and layeredPane components.
In a multi-screen environment, you can create a JWindow on a different screen device. See Window for more information.
Warning: Swing is not thread safe. For more information see Swing's Threading Policy.
Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans™ has been added to the java.beans package. Please see XMLEncoder.
A JWindow is a container that can be displayed anywhere on the
user's desktop. It does not have the title bar, window-management buttons,
or other trimmings associated with a JFrame, but it is still a
"first-class citizen" of the user's desktop, and can exist anywhere
on it.
The JWindow component contains a JRootPane
as its only child. The contentPane should be the parent
of any children of the JWindow.
As a convenience, the add, remove, and setLayout
methods of this class are overridden, so that they delegate calls
to the corresponding methods of the ContentPane.
For example, you can add a child component to a window as follows:
window.add(child);
And the child will be added to the contentPane.
The contentPane will always be non-null.
Attempting to set it to null will cause the JWindow
to throw an exception. The default contentPane will have a
BorderLayout manager set on it.
Refer to RootPaneContainer
for details on adding, removing and setting the LayoutManager
of a JWindow.
Please see the JRootPane documentation for a complete description of
the contentPane, glassPane, and
layeredPane components.
In a multi-screen environment, you can create a JWindow
on a different screen device. See Window for more
information.
Warning: Swing is not thread safe. For more
information see Swing's Threading
Policy.
Warning:
Serialized objects of this class will not be compatible with
future Swing releases. The current serialization support is
appropriate for short term storage or RMI between applications running
the same version of Swing. As of 1.4, support for long term storage
of all JavaBeans™
has been added to the java.beans package.
Please see XMLEncoder.->j-windowclj
(->j-window)(->j-window gc)(->j-window owner gc)Constructor.
Creates a window with the specified owner window and GraphicsConfiguration of a screen device. If owner is null, the shared owner will be used and this window will not be focusable.
This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale.
owner - the window from which the window is displayed - java.awt.Window
gc - the GraphicsConfiguration that is used to construct the new window with; if gc is null, the system default GraphicsConfiguration is assumed, unless owner is also null, in which case the GraphicsConfiguration from the shared owner frame will be used. - java.awt.GraphicsConfiguration
throws: java.awt.HeadlessException - if GraphicsEnvironment.isHeadless() returns true.
Constructor. Creates a window with the specified owner window and GraphicsConfiguration of a screen device. If owner is null, the shared owner will be used and this window will not be focusable. This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. owner - the window from which the window is displayed - `java.awt.Window` gc - the GraphicsConfiguration that is used to construct the new window with; if gc is null, the system default GraphicsConfiguration is assumed, unless owner is also null, in which case the GraphicsConfiguration from the shared owner frame will be used. - `java.awt.GraphicsConfiguration` throws: java.awt.HeadlessException - if GraphicsEnvironment.isHeadless() returns true.
get-accessible-contextclj
(get-accessible-context this)Gets the AccessibleContext associated with this JWindow. For JWindows, the AccessibleContext takes the form of an AccessibleJWindow. A new AccessibleJWindow instance is created if necessary.
returns: an AccessibleJWindow that serves as the
AccessibleContext of this JWindow - javax.accessibility.AccessibleContext
Gets the AccessibleContext associated with this JWindow.
For JWindows, the AccessibleContext takes the form of an
AccessibleJWindow.
A new AccessibleJWindow instance is created if necessary.
returns: an AccessibleJWindow that serves as the
AccessibleContext of this JWindow - `javax.accessibility.AccessibleContext`get-content-paneclj
(get-content-pane this)Returns the Container which is the contentPane for this window.
returns: the contentPane property - java.awt.Container
Returns the Container which is the contentPane for this window. returns: the contentPane property - `java.awt.Container`
get-glass-paneclj
(get-glass-pane this)Returns the glassPane Component for this window.
returns: the glassPane property - java.awt.Component
Returns the glassPane Component for this window. returns: the glassPane property - `java.awt.Component`
get-graphicsclj
(get-graphics this)Creates a graphics context for this component. This method will return null if this component is currently not displayable.
returns: a graphics context for this component, or null
if it has none - java.awt.Graphics
Creates a graphics context for this component. This method will
return null if this component is currently not
displayable.
returns: a graphics context for this component, or null
if it has none - `java.awt.Graphics`get-layered-paneclj
(get-layered-pane this)Returns the layeredPane object for this window.
returns: the layeredPane property - javax.swing.JLayeredPane
Returns the layeredPane object for this window. returns: the layeredPane property - `javax.swing.JLayeredPane`
get-root-paneclj
(get-root-pane this)Returns the rootPane object for this window.
returns: the rootPane property for this window - javax.swing.JRootPane
Returns the rootPane object for this window. returns: the rootPane property for this window - `javax.swing.JRootPane`
get-transfer-handlerclj
(get-transfer-handler this)Gets the transferHandler property.
returns: the value of the transferHandler property - javax.swing.TransferHandler
Gets the transferHandler property. returns: the value of the transferHandler property - `javax.swing.TransferHandler`
removeclj
(remove this comp)Removes the specified component from the container. If comp is not the rootPane, this will forward the call to the contentPane. This will do nothing if comp is not a child of the JWindow or contentPane.
comp - the component to be removed - java.awt.Component
throws: java.lang.NullPointerException - if comp is null
Removes the specified component from the container. If comp is not the rootPane, this will forward the call to the contentPane. This will do nothing if comp is not a child of the JWindow or contentPane. comp - the component to be removed - `java.awt.Component` throws: java.lang.NullPointerException - if comp is null
repaintclj
(repaint this time x y width height)Repaints the specified rectangle of this component within time milliseconds. Refer to RepaintManager for details on how the repaint is handled.
time - maximum time in milliseconds before update - long
x - the x coordinate - int
y - the y coordinate - int
width - the width - int
height - the height - int
Repaints the specified rectangle of this component within time milliseconds. Refer to RepaintManager for details on how the repaint is handled. time - maximum time in milliseconds before update - `long` x - the x coordinate - `int` y - the y coordinate - `int` width - the width - `int` height - the height - `int`
set-content-paneclj
(set-content-pane this content-pane)Sets the contentPane property for this window. This method is called by the constructor.
content-pane - the new contentPane - java.awt.Container
throws: java.awt.IllegalComponentStateException - (a runtime exception) if the content pane parameter is null
Sets the contentPane property for this window. This method is called by the constructor. content-pane - the new contentPane - `java.awt.Container` throws: java.awt.IllegalComponentStateException - (a runtime exception) if the content pane parameter is null
set-glass-paneclj
(set-glass-pane this glass-pane)Sets the glassPane property. This method is called by the constructor.
glass-pane - the glassPane object for this window - java.awt.Component
Sets the glassPane property. This method is called by the constructor. glass-pane - the glassPane object for this window - `java.awt.Component`
set-layered-paneclj
(set-layered-pane this layered-pane)Sets the layeredPane property. This method is called by the constructor.
layered-pane - the new layeredPane object - javax.swing.JLayeredPane
throws: java.awt.IllegalComponentStateException - (a runtime exception) if the content pane parameter is null
Sets the layeredPane property. This method is called by the constructor. layered-pane - the new layeredPane object - `javax.swing.JLayeredPane` throws: java.awt.IllegalComponentStateException - (a runtime exception) if the content pane parameter is null
set-layoutclj
(set-layout this manager)Sets the LayoutManager. Overridden to conditionally forward the call to the contentPane. Refer to RootPaneContainer for more information.
manager - the LayoutManager - java.awt.LayoutManager
Sets the LayoutManager. Overridden to conditionally forward the call to the contentPane. Refer to RootPaneContainer for more information. manager - the LayoutManager - `java.awt.LayoutManager`
set-transfer-handlerclj
(set-transfer-handler this new-handler)Sets the transferHandler property, which is a mechanism to support transfer of data into this component. Use null if the component does not support data transfer operations.
If the system property suppressSwingDropSupport is false (the default) and the current drop target on this component is either null or not a user-set drop target, this method will change the drop target as follows: If newHandler is null it will clear the drop target. If not null it will install a new DropTarget.
Note: When used with JWindow, TransferHandler only provides data import capability, as the data export related methods are currently typed to JComponent.
Please see
How to Use Drag and Drop and Data Transfer, a section in The Java Tutorial, for more information.
new-handler - the new TransferHandler - javax.swing.TransferHandler
Sets the transferHandler property, which is a mechanism to support transfer of data into this component. Use null if the component does not support data transfer operations. If the system property suppressSwingDropSupport is false (the default) and the current drop target on this component is either null or not a user-set drop target, this method will change the drop target as follows: If newHandler is null it will clear the drop target. If not null it will install a new DropTarget. Note: When used with JWindow, TransferHandler only provides data import capability, as the data export related methods are currently typed to JComponent. Please see How to Use Drag and Drop and Data Transfer, a section in The Java Tutorial, for more information. new-handler - the new TransferHandler - `javax.swing.TransferHandler`
updateclj
(update this g)Calls paint(g). This method was overridden to prevent an unnecessary call to clear the background.
g - the Graphics context in which to paint - java.awt.Graphics
Calls paint(g). This method was overridden to prevent an unnecessary call to clear the background. g - the Graphics context in which to paint - `java.awt.Graphics`
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