Module java.desktop

Package javax.swing.plaf.basic

Class BasicRootPaneUI

java.lang.Object

javax.swing.plaf.ComponentUI

javax.swing.plaf.RootPaneUI

javax.swing.plaf.basic.BasicRootPaneUI

All Implemented Interfaces:

PropertyChangeListener, EventListener

Direct Known Subclasses:

MetalRootPaneUI, SynthRootPaneUI

public class BasicRootPaneUI
extends RootPaneUI
implements PropertyChangeListener

Basic implementation of RootPaneUI, there is one shared between all JRootPane instances.

Since:

1.3

Constructor Summary

Constructors

Constructor	Description
BasicRootPaneUI()

Method Summary

Modifier and Type	Method	Description
static ComponentUI	createUI(JComponent c)	Returns a new instance of BasicRootPaneUI.
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.
void	installUI(JComponent c)	Configures the specified component appropriately for the look and feel.
void	propertyChange(PropertyChangeEvent e)	Invoked when a property changes on the root pane.
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.
void	uninstallUI(JComponent c)	Reverses configuration which was done on the specified component during installUI.

Methods inherited from class javax.swing.plaf.ComponentUI

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

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicRootPaneUI

public BasicRootPaneUI()

Method Detail

createUI

public static ComponentUI createUI(JComponent c)

Returns a new instance of BasicRootPaneUI.

Parameters:

c - a component

Returns:

a new instance of BasicRootPaneUI

installUI

public void installUI(JComponent c)

Description copied from class: ComponentUI

Configures the specified component appropriately for the look and feel. This method is invoked when the ComponentUI instance is being installed as the UI delegate on the specified component. This method should completely configure the component for the look and feel, including the following:

1. Install default property values for color, fonts, borders, icons, opacity, etc. on the component. Whenever possible, property values initialized by the client program should not be overridden.
2. Install a LayoutManager on the component if necessary.
3. Create/add any required sub-components to the component.
4. Create/install event listeners on the component.
5. Create/install a PropertyChangeListener on the component in order to detect and respond to component property changes appropriately.
6. Install keyboard UI (mnemonics, traversal, etc.) on the component.
7. Initialize any appropriate instance data.

Overrides:

installUI in class ComponentUI

Parameters:

c - the component where this UI delegate is being installed

See Also:

ComponentUI.uninstallUI(javax.swing.JComponent), JComponent.setUI(javax.swing.plaf.ComponentUI), JComponent.updateUI()

uninstallUI

public void uninstallUI(JComponent c)

Description copied from class: ComponentUI

Reverses configuration which was done on the specified component during installUI. This method is invoked when this UIComponent instance is being removed as the UI delegate for the specified component. This method should undo the configuration performed in installUI, being careful to leave the JComponent instance in a clean state (no extraneous listeners, look-and-feel-specific property objects, etc.). This should include the following:

1. Remove any UI-set borders from the component.
2. Remove any UI-set layout managers on the component.
3. Remove any UI-added sub-components from the component.
4. Remove any UI-added event/property listeners from the component.
5. Remove any UI-installed keyboard UI from the component.
6. Nullify any allocated instance data objects to allow for GC.

Overrides:

uninstallUI in class ComponentUI

Parameters:

c - the component from which this UI delegate is being removed; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

See Also:

ComponentUI.installUI(javax.swing.JComponent), JComponent.updateUI()

installDefaults

protected void installDefaults(JRootPane c)

Installs default properties.

Parameters:

c - an instance of JRootPane

installComponents

protected void installComponents(JRootPane root)

Installs components.

Parameters:

root - an instance of JRootPane

installListeners

protected void installListeners(JRootPane root)

Registers listeners.

Parameters:

root - an instance of JRootPane

installKeyboardActions

protected void installKeyboardActions(JRootPane root)

Registers keyboard actions.

Parameters:

root - an instance of JRootPane

uninstallDefaults

protected void uninstallDefaults(JRootPane root)

Uninstalls default properties.

Parameters:

root - an instance of JRootPane

uninstallComponents

protected void uninstallComponents(JRootPane root)

Unregisters components.

Parameters:

root - an instance of JRootPane

uninstallListeners

protected void uninstallListeners(JRootPane root)

Unregisters listeners.

Parameters:

root - an instance of JRootPane

uninstallKeyboardActions

protected void uninstallKeyboardActions(JRootPane root)

Unregisters keyboard actions.

Parameters:

root - an instance of JRootPane

propertyChange

public void propertyChange(PropertyChangeEvent e)

Invoked when a property changes on the root pane. If the event indicates the defaultButton has changed, this will reinstall the keyboard actions.

Specified by:

propertyChange in interface PropertyChangeListener

Parameters:

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