|
JavaTM 2 Platform Std. Ed. v1.3.1 |
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--java.awt.Component | +--java.awt.Container | +--java.awt.Window | +--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 it's only child.
The contentPane
should be the parent of any children of the
JWindow
.
From the older java.awt.Window
object you would normally do
something like this:
window.add(child);However, using
JWindow
you would code:
window.getContentPane().add(child);The same is true of setting
LayoutManager
s, removing components,
listing children, etc. All these methods should normally be sent to
the contentPane
instead of the JWindow
itself.
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.
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.
For the keyboard keys used by this component in the standard Look and Feel (L&F) renditions, see the JWindow key assignments.
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. A future release of Swing will provide support for long term persistence.
JRootPane
, Serialized FormInner Class Summary | |
protected class |
JWindow.AccessibleJWindow
This class implements accessibility support for the JWindow class. |
Inner classes inherited from class java.awt.Window |
Window.AccessibleAWTWindow |
Inner classes inherited from class java.awt.Container |
Container.AccessibleAWTContainer |
Inner classes inherited from class java.awt.Component |
Component.AccessibleAWTComponent |
Field Summary | |
protected AccessibleContext |
accessibleContext
The accessible context property. |
protected JRootPane |
rootPane
The JRootPane instance that manages the
contentPane
and optional menuBar for this frame, as well as the
glassPane . |
protected boolean |
rootPaneCheckingEnabled
If true then calls to add and setLayout
will cause an exception to be thrown. |
Fields inherited from class java.awt.Component |
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT |
Fields inherited from interface java.awt.image.ImageObserver |
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH |
Constructor Summary | |
JWindow()
Creates a window with no specified owner. |
|
JWindow(Frame owner)
Creates a window with the specified owner frame. |
|
JWindow(GraphicsConfiguration gc)
Creates a window with the specified GraphicsConfiguration
of a screen device. |
|
JWindow(Window owner)
Creates a window with the owner and the specified GraphicsConfiguration of a screen device. |
|
JWindow(Window owner,
GraphicsConfiguration gc)
|
Method Summary | |
protected void |
addImpl(Component comp,
Object constraints,
int index)
By default, children may not be added directly to a this component, they must be added to its contentPane instead. |
protected JRootPane |
createRootPane()
Called by the constructor methods to create the default rootPane . |
AccessibleContext |
getAccessibleContext()
Gets the AccessibleContext associated with this JWindow. |
Container |
getContentPane()
Returns the Container which is the contentPane
for this window. |
Component |
getGlassPane()
Returns the glassPane Component for this window. |
JLayeredPane |
getLayeredPane()
Returns the layeredPane object for this window. |
JRootPane |
getRootPane()
Returns the rootPane object for this window. |
protected boolean |
isRootPaneCheckingEnabled()
Returns whether calls to add and
setLayout will cause an exception to be thrown. |
protected String |
paramString()
Returns a string representation of this JWindow . |
void |
remove(Component comp)
Removes the specified component from this container. |
void |
setContentPane(Container contentPane)
Sets the contentPane property for this window. |
void |
setGlassPane(Component glassPane)
Sets the glassPane property. |
void |
setLayeredPane(JLayeredPane layeredPane)
Sets the layeredPane property. |
void |
setLayout(LayoutManager manager)
By default the layout of this component may not be set, the layout of its contentPane should be set instead. |
protected void |
setRootPane(JRootPane root)
Sets the new rootPane object for this window. |
protected void |
setRootPaneCheckingEnabled(boolean enabled)
Determines whether calls to add and
setLayout will cause an exception to be thrown. |
protected void |
windowInit()
Called by the constructors to init the JWindow properly. |
Methods inherited from class java.awt.Window |
addNotify, addWindowListener, applyResourceBundle, applyResourceBundle, dispose, finalize, getFocusOwner, getGraphicsConfiguration, getInputContext, getListeners, getLocale, getOwnedWindows, getOwner, getToolkit, getWarningString, hide, isShowing, pack, postEvent, processEvent, processWindowEvent, removeWindowListener, setCursor, show, toBack, toFront |
Methods inherited from class java.awt.Container |
add, add, add, add, add, addContainerListener, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getInsets, getLayout, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paint, paintComponents, preferredSize, print, printComponents, processContainerEvent, remove, removeAll, removeContainerListener, removeNotify, setFont, update, validate, validateTree |
Methods inherited from class java.lang.Object |
clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
protected JRootPane rootPane
JRootPane
instance that manages the
contentPane
and optional menuBar
for this frame, as well as the
glassPane
.getRootPane()
,
setRootPane(javax.swing.JRootPane)
protected boolean rootPaneCheckingEnabled
add
and setLayout
will cause an exception to be thrown.isRootPaneCheckingEnabled()
,
setRootPaneCheckingEnabled(boolean)
protected AccessibleContext accessibleContext
Constructor Detail |
public JWindow()
public JWindow(GraphicsConfiguration gc)
GraphicsConfiguration
of a screen device.gc
- the GraphicsConfiguration
that is used
to construct the new window with; if gc is null
,
the system default GraphicsConfiguration
is assumedIllegalArgumentException
- if gc
is not from
a screen device.public JWindow(Frame owner)
owner
is null
, the shared owner
will be used.owner
- the frame from which the window is displayedpublic JWindow(Window owner)
GraphicsConfiguration
of a screen device.owner
- the window to act as ownergc
- the GraphicsConfiguration
that is used
to construct the new Window
;
if gc
is null
, the system
default GraphicsConfiguration
is assumedIllegalArgumentException
- if gc
is not from
a screen device.IllegalArgumentException
- if owner is null
public JWindow(Window owner, GraphicsConfiguration gc)
Method Detail |
protected void windowInit()
JWindow
properly.protected JRootPane createRootPane()
rootPane
.protected boolean isRootPaneCheckingEnabled()
add
and
setLayout
will cause an exception to be thrown.add
and setLayout
are checkedaddImpl(java.awt.Component, java.lang.Object, int)
,
setLayout(java.awt.LayoutManager)
,
setRootPaneCheckingEnabled(boolean)
protected void setRootPaneCheckingEnabled(boolean enabled)
add
and
setLayout
will cause an exception to be thrown.enabled
- a boolean value, true if checking is to be
enabled, which cause the exceptions to be thrownaddImpl(java.awt.Component, java.lang.Object, int)
,
setLayout(java.awt.LayoutManager)
,
isRootPaneCheckingEnabled()
protected void addImpl(Component comp, Object constraints, int index)
contentPane
instead. For example:
thisComponent.getContentPane().add(child)An attempt to add to directly to this component will cause an runtime exception to be thrown. Subclasses can disable this behavior.
addImpl
in class Container
comp
- the component to be enhancedconstraints
- the constraints to be enforced on the componentindex
- the index of the componentError
- if called with rootPaneChecking
truesetRootPaneCheckingEnabled(boolean)
public void remove(Component comp)
remove
in class Container
comp
- the component to be removedContainer.add(java.awt.Component)
public void setLayout(LayoutManager manager)
thisComponent.getContentPane().setLayout(new BorderLayout())An attempt to set the layout of this component will cause an runtime exception to be thrown. Subclasses can disable this behavior.
setLayout
in class Container
manager
- the layout manager for the windowError
- if called with rootPaneChecking
truesetRootPaneCheckingEnabled(boolean)
public JRootPane getRootPane()
rootPane
object for this window.getRootPane
in interface RootPaneContainer
rootPane
property for this windowsetRootPane(javax.swing.JRootPane)
,
RootPaneContainer.getRootPane()
protected void setRootPane(JRootPane root)
rootPane
object for this window.
This method is called by the constructor.root
- the new rootPane
propertygetRootPane()
public Container getContentPane()
Container
which is the contentPane
for this window.getContentPane
in interface RootPaneContainer
contentPane
propertysetContentPane(java.awt.Container)
,
RootPaneContainer.getContentPane()
public void setContentPane(Container contentPane)
contentPane
property for this window.
This method is called by the constructor.setContentPane
in interface RootPaneContainer
contentPane
- the new contentPane
IllegalComponentStateException
- (a runtime
exception) if the content pane parameter is null
getContentPane()
,
RootPaneContainer.setContentPane(java.awt.Container)
public JLayeredPane getLayeredPane()
layeredPane
object for this window.getLayeredPane
in interface RootPaneContainer
layeredPane
propertysetLayeredPane(javax.swing.JLayeredPane)
,
RootPaneContainer.getLayeredPane()
public void setLayeredPane(JLayeredPane layeredPane)
layeredPane
property.
This method is called by the constructor.setLayeredPane
in interface RootPaneContainer
layeredPane
- the new layeredPane
objectIllegalComponentStateException
- (a runtime
exception) if the content pane parameter is null
getLayeredPane()
,
RootPaneContainer.setLayeredPane(javax.swing.JLayeredPane)
public Component getGlassPane()
glassPane Component
for this window.getGlassPane
in interface RootPaneContainer
glassPane
propertysetGlassPane(java.awt.Component)
,
RootPaneContainer.getGlassPane()
public void setGlassPane(Component glassPane)
glassPane
property.
This method is called by the constructor.setGlassPane
in interface RootPaneContainer
glassPane
- the glassPane
object for this windowgetGlassPane()
,
RootPaneContainer.setGlassPane(java.awt.Component)
protected String paramString()
JWindow
.
This method
is intended to be used only for debugging purposes, and the
content and format of the returned string may vary between
implementations. The returned string may be empty but may not
be null
.paramString
in class Container
JWindow
public AccessibleContext getAccessibleContext()
getAccessibleContext
in interface Accessible
getAccessibleContext
in class Window
|
JavaTM 2 Platform Std. Ed. v1.3.1 |
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
Java, Java 2D, and JDBC are trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-2001 Sun Microsystems, Inc. 901 San Antonio Road
Palo Alto, California, 94303, U.S.A. All Rights Reserved.