Class MetalRootPaneUI

java.lang.Object

javax.swing.plaf.ComponentUI

javax.swing.plaf.RootPaneUI

javax.swing.plaf.basic.BasicRootPaneUI

javax.swing.plaf.metal.MetalRootPaneUI

All Implemented Interfaces:

PropertyChangeListener, EventListener

public class MetalRootPaneUI
extends BasicRootPaneUI

Provides the metal look and feel implementation of RootPaneUI.

MetalRootPaneUI provides support for the windowDecorationStyle property of JRootPane. MetalRootPaneUI does this by way of installing a custom LayoutManager, a private Component to render the appropriate widgets, and a private Border. The LayoutManager is always installed, regardless of the value of the windowDecorationStyle property, but the Border and Component are only installed/added if the windowDecorationStyle is other than JRootPane.NONE.

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.

Since:

1.4

Constructor Summary

Constructors

Constructor	Description
MetalRootPaneUI()	Constructs a MetalRootPaneUI.

Method Summary

Modifier and Type	Method	Description
static ComponentUI	createUI(JComponent c)	Creates a UI for a JRootPane.
void	installUI(JComponent c)	Invokes supers implementation of installUI to install the necessary state onto the passed in JRootPane to render the metal look and feel implementation of RootPaneUI.
void	propertyChange(PropertyChangeEvent e)	Invoked when a property changes.
void	uninstallUI(JComponent c)	Invokes supers implementation to uninstall any of its state.

Methods declared in class BasicRootPaneUI

installComponents, installDefaults, installKeyboardActions, installListeners, uninstallComponents, uninstallDefaults, uninstallKeyboardActions, uninstallListeners

Modifier and Type	Method	Description
protected void	installComponents(JRootPane root)	Installs components.
protected void	installDefaults(JRootPane c)	Installs default properties.
protected void	installKeyboardActions(JRootPane root)	Registers keyboard actions.
protected void	installListeners(JRootPane root)	Registers listeners.
protected void	uninstallComponents(JRootPane root)	Unregisters components.
protected void	uninstallDefaults(JRootPane root)	Uninstalls default properties.
protected void	uninstallKeyboardActions(JRootPane root)	Unregisters keyboard actions.
protected void	uninstallListeners(JRootPane root)	Unregisters listeners.

Methods declared in class ComponentUI

contains, getAccessibleChild, getAccessibleChildrenCount, getBaseline, getBaselineResizeBehavior, getMaximumSize, getMinimumSize, getPreferredSize, paint, update

Modifier and Type	Method	Description
boolean	contains(JComponent c, int x, int y)	Returns true if the specified x,y location is contained within the look and feel's defined shape of the specified component.
Accessible	getAccessibleChild(JComponent c, int i)	Returns the ith Accessible child of the object.
int	getAccessibleChildrenCount(JComponent c)	Returns the number of accessible children in the object.
int	getBaseline(JComponent c, int width, int height)	Returns the baseline.
Component.BaselineResizeBehavior	getBaselineResizeBehavior(JComponent c)	Returns an enum indicating how the baseline of the component changes as the size changes.
Dimension	getMaximumSize(JComponent c)	Returns the specified component's maximum size appropriate for the look and feel.
Dimension	getMinimumSize(JComponent c)	Returns the specified component's minimum size appropriate for the look and feel.
Dimension	getPreferredSize(JComponent c)	Returns the specified component's preferred size appropriate for the look and feel.
void	paint(Graphics g, JComponent c)	Paints the specified component appropriately for the look and feel.
void	update(Graphics g, JComponent c)	Notifies this UI delegate that it is time to paint the specified component.

Methods declared in class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Modifier and Type	Method	Description
protected Object	clone()	Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
boolean	equals(Object o)	Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
protected void	finalize()	Deprecated, for removal: This API element is subject to removal in a future version. May cause performance issues, deadlocks and hangs.
final Class<? extends Object>	getClass()	Answers the unique instance of java.lang.Class which represents the class of the receiver.
int	hashCode()	Answers an integer hash code for the receiver.
final void	notify()	Causes one thread which is waiting on the receiver to be made ready to run.
final void	notifyAll()	Causes all threads which are waiting on the receiver to be made ready to run.
String	toString()	Answers a string containing a concise, human-readable description of the receiver.
final void	wait()	Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
final void	wait(long time)	Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
final void	wait(long time, int frac)	Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

Constructor Details

MetalRootPaneUI

public MetalRootPaneUI()

Constructs a MetalRootPaneUI.

Method Details

createUI

public static ComponentUI createUI(JComponent c)

Creates a UI for a JRootPane.

Parameters:

c - the JRootPane the RootPaneUI will be created for

Returns:

the RootPaneUI implementation for the passed in JRootPane

installUI

public void installUI(JComponent c)

Invokes supers implementation of installUI to install the necessary state onto the passed in JRootPane to render the metal look and feel implementation of RootPaneUI. If the windowDecorationStyle property of the JRootPane is other than JRootPane.NONE, this will add a custom Component to render the widgets to JRootPane, as well as installing a custom Border and LayoutManager on the JRootPane.

Overrides:

installUI in class ComponentUI

Parameters:

c - the JRootPane to install state onto

See Also:

• ComponentUI.uninstallUI(JComponent)
• JComponent.setUI(ComponentUI)
• JComponent.updateUI()

uninstallUI

public void uninstallUI(JComponent c)

Invokes supers implementation to uninstall any of its state. This will also reset the LayoutManager of the JRootPane. If a Component has been added to the JRootPane to render the window decoration style, this method will remove it. Similarly, this will revert the Border and LayoutManager of the JRootPane to what it was before installUI was invoked.

Overrides:

uninstallUI in class ComponentUI

Parameters:

c - the JRootPane to uninstall state from

See Also:

• ComponentUI.installUI(JComponent)
• JComponent.updateUI()

propertyChange

public void propertyChange(PropertyChangeEvent e)

Invoked when a property changes. MetalRootPaneUI is primarily interested in events originating from the JRootPane it has been installed on identifying the property windowDecorationStyle. If the windowDecorationStyle has changed to a value other than JRootPane.NONE, this will add a Component to the JRootPane to render the window decorations, as well as installing a Border on the JRootPane. On the other hand, if the windowDecorationStyle has changed to JRootPane.NONE, this will remove the Component that has been added to the JRootPane as well resetting the Border to what it was before installUI was invoked.

Specified by:

propertyChange in interface PropertyChangeListener

Overrides:

propertyChange in class BasicRootPaneUI

Parameters:

e - A PropertyChangeEvent object describing the event source and the property that has changed.