LayerUI

java.lang.Object
- javax.swing.plaf.ComponentUI
- - javax.swing.plaf.LayerUI<V>

Type Parameters:

V - one of the super types of JLayer's view component

All Implemented Interfaces:

Serializable
```
public class LayerUI<V extends Component>
extends ComponentUI
implements Serializable
```
The base class for all JLayer's UI delegates.
paint(java.awt.Graphics, javax.swing.JComponent) method performs the painting of the JLayer and eventDispatched(AWTEvent, JLayer) method is notified about any AWTEvents which have been generated by a JLayer or any of its subcomponents.

The LayerUI differs from the UI delegates of the other components, because it is LookAndFeel independent and is not updated by default when the system LookAndFeel is changed.

The subclasses of LayerUI can either be stateless and shareable by multiple JLayers or not shareable.

Since:

1.7

See Also:

JLayer.setUI(LayerUI), JLayer.setView(Component), JLayer.getView()

Constructor Summary

Constructors

Constructor and Description
`LayerUI()`

Method Summary

All Methods

Instance Methods

Concrete Methods
Modifier and Type	Method and Description
`void`	`addPropertyChangeListener(PropertyChangeListener listener)` Adds a PropertyChangeListener to the listener list.
`void`	`addPropertyChangeListener(String propertyName, PropertyChangeListener listener)` Adds a PropertyChangeListener to the listener list for a specific property.
`void`	`applyPropertyChange(PropertyChangeEvent evt, JLayer<? extends V> l)` Notifies the `LayerUI` when any of its property are changed and enables updating every `JLayer` this `LayerUI` instance is set to.
`void`	`doLayout(JLayer<? extends V> l)` Causes the passed instance of `JLayer` to lay out its components.
`void`	`eventDispatched(AWTEvent e, JLayer<? extends V> l)` Processes `AWTEvent`s for `JLayer` and all its descendants to this `LayerUI` instance.
`protected void`	`firePropertyChange(String propertyName, Object oldValue, Object newValue)` Support for reporting bound property changes for Object properties.
`int`	`getBaseline(JComponent c, int width, int height)` If the `JLayer`'s view component is not `null`, this calls the view's `getBaseline()` method.
`Component.BaselineResizeBehavior`	`getBaselineResizeBehavior(JComponent c)` If the `JLayer`'s view component is not `null`, this returns the result of the view's `getBaselineResizeBehavior()` method.
`Dimension`	`getMaximumSize(JComponent c)` If the `JLayer`'s view component is not `null`, this returns the result of the view's `getMaximumSize()` method.
`Dimension`	`getMinimumSize(JComponent c)` If the `JLayer`'s view component is not `null`, this returns the result of the view's `getMinimalSize()` method.
`Dimension`	`getPreferredSize(JComponent c)` If the `JLayer`'s view component is not `null`, this returns the result of the view's `getPreferredSize()` method.
`PropertyChangeListener[]`	`getPropertyChangeListeners()` Returns an array of all the property change listeners registered on this component.
`PropertyChangeListener[]`	`getPropertyChangeListeners(String propertyName)` Returns an array of all the listeners which have been associated with the named property.
`void`	`installUI(JComponent c)` Configures the `JLayer` this `LayerUI` is set to.
`void`	`paint(Graphics g, JComponent c)` Paints the specified component.
`void`	`paintImmediately(int x, int y, int width, int height, JLayer<? extends V> l)` Paints the specified region in the `JLayer` this `LayerUI` is set to, immediately.
`protected void`	`processComponentEvent(ComponentEvent e, JLayer<? extends V> l)` Processes component events occurring on the `JLayer` or any of its subcomponents.
`protected void`	`processFocusEvent(FocusEvent e, JLayer<? extends V> l)` Processes focus events occurring on the `JLayer` or any of its subcomponents.
`protected void`	`processHierarchyBoundsEvent(HierarchyEvent e, JLayer<? extends V> l)` Processes hierarchy bounds event occurring on the `JLayer` or any of its subcomponents.
`protected void`	`processHierarchyEvent(HierarchyEvent e, JLayer<? extends V> l)` Processes hierarchy event occurring on the `JLayer` or any of its subcomponents.
`protected void`	`processInputMethodEvent(InputMethodEvent e, JLayer<? extends V> l)` Processes input event occurring on the `JLayer` or any of its subcomponents.
`protected void`	`processKeyEvent(KeyEvent e, JLayer<? extends V> l)` Processes key events occurring on the `JLayer` or any of its subcomponents.
`protected void`	`processMouseEvent(MouseEvent e, JLayer<? extends V> l)` Processes mouse events occurring on the `JLayer` or any of its subcomponents.
`protected void`	`processMouseMotionEvent(MouseEvent e, JLayer<? extends V> l)` Processes mouse motion event occurring on the `JLayer` or any of its subcomponents.
`protected void`	`processMouseWheelEvent(MouseWheelEvent e, JLayer<? extends V> l)` Processes mouse wheel event occurring on the `JLayer` or any of its subcomponents.
`void`	`removePropertyChangeListener(PropertyChangeListener listener)` Removes a PropertyChangeListener from the listener list.
`void`	`removePropertyChangeListener(String propertyName, PropertyChangeListener listener)` Removes a `PropertyChangeListener` from the listener list for a specific property.
`void`	`uninstallUI(JComponent c)` Reverses the configuration which was previously set in the `installUI(JComponent)` method.
`void`	`updateUI(JLayer<? extends V> l)` Invoked when `JLayer.updateUI()` is called by the `JLayer` this `LayerUI` is set to.

Methods inherited from class javax.swing.plaf.ComponentUI
contains, createUI, getAccessibleChild, getAccessibleChildrenCount, update

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - LayerUI
```
public LayerUI()
```
- Method Detail
  - paint
```
public void paint(Graphics g,
                  JComponent c)
```
    Paints the specified component. Subclasses should override this method and use the specified Graphics object to render the content of the component.
    The default implementation paints the passed component as is.
    
    Overrides:
    
    paint in class ComponentUI
    
    Parameters:
    
    g - the Graphics context in which to paint
    
    c - the component being painted
    
    See Also:
    
    ComponentUI.update(java.awt.Graphics, javax.swing.JComponent)
  - eventDispatched
```
public void eventDispatched(AWTEvent e,
                            JLayer<? extends V> l)
```
    Processes AWTEvents for JLayer and all its descendants to this LayerUI instance.
    To enable the AWTEvents of a particular type, you call JLayer.setLayerEventMask(long) in installUI(javax.swing.JComponent) and set the layer event mask to 0 in uninstallUI(javax.swing.JComponent) after that. By default this method calls the appropriate process<event type>Event method for the given class of event.
    
    Note: Events are processed only for displayable JLayers.
    
    Parameters:
    
    e - the event to be dispatched
    
    l - the layer this LayerUI is set to
    
    See Also:
    
    JLayer.setLayerEventMask(long), Component.isDisplayable(), processComponentEvent(java.awt.event.ComponentEvent, javax.swing.JLayer<? extends V>), processFocusEvent(java.awt.event.FocusEvent, javax.swing.JLayer<? extends V>), processKeyEvent(java.awt.event.KeyEvent, javax.swing.JLayer<? extends V>), processMouseEvent(java.awt.event.MouseEvent, javax.swing.JLayer<? extends V>), processMouseMotionEvent(java.awt.event.MouseEvent, javax.swing.JLayer<? extends V>), processInputMethodEvent(java.awt.event.InputMethodEvent, javax.swing.JLayer<? extends V>), processHierarchyEvent(java.awt.event.HierarchyEvent, javax.swing.JLayer<? extends V>), processMouseWheelEvent(java.awt.event.MouseWheelEvent, javax.swing.JLayer<? extends V>)
  - processComponentEvent
```
protected void processComponentEvent(ComponentEvent e,
                                     JLayer<? extends V> l)
```
    Processes component events occurring on the JLayer or any of its subcomponents.
    This method is not called unless component events are enabled for the JLayer objects, this LayerUI is set to. Component events are enabled in the overridden installUI(javax.swing.JComponent) method and should be disabled in the uninstallUI(javax.swing.JComponent) method after that.
```
 public void installUI(JComponent c) {
    super.installUI(c);
    JLayer l = (JLayer) c;
    l.setLayerEventMask(AWTEvent.COMPONENT_EVENT_MASK);
 }

 public void uninstallUI(JComponent c) {
     super.uninstallUI(c);
     JLayer l = (JLayer) c;
     l.setLayerEventMask(0);
 }
 
```
    Parameters:
    
    e - the ComponentEvent to be processed
    
    l - the layer this LayerUI instance is set to
    
    See Also:
    
    JLayer.setLayerEventMask(long), installUI(javax.swing.JComponent), uninstallUI(javax.swing.JComponent)
  - processFocusEvent
```
protected void processFocusEvent(FocusEvent e,
                                 JLayer<? extends V> l)
```
    Processes focus events occurring on the JLayer or any of its subcomponents.
    This method is not called unless focus events are enabled for the JLayer objects, this LayerUI is set to. Focus events are enabled in the overridden installUI(javax.swing.JComponent) method and should be disabled in the uninstallUI(javax.swing.JComponent) method after that.
```
 public void installUI(JComponent c) {
    super.installUI(c);
    JLayer l = (JLayer) c;
    l.setLayerEventMask(AWTEvent.FOCUS_EVENT_MASK);
 }

 public void uninstallUI(JComponent c) {
     super.uninstallUI(c);
     JLayer l = (JLayer) c;
     l.setLayerEventMask(0);
 }
 
```
    Parameters:
    
    e - the FocusEvent to be processed
    
    l - the layer this LayerUI instance is set to
    
    See Also:
    
    JLayer.setLayerEventMask(long), installUI(javax.swing.JComponent), uninstallUI(javax.swing.JComponent)
  - processKeyEvent
```
protected void processKeyEvent(KeyEvent e,
                               JLayer<? extends V> l)
```
    Processes key events occurring on the JLayer or any of its subcomponents.
    This method is not called unless key events are enabled for the JLayer objects, this LayerUI is set to. Key events are enabled in the overridden installUI(javax.swing.JComponent) method and should be disabled in the uninstallUI(javax.swing.JComponent) method after that.
```
 public void installUI(JComponent c) {
    super.installUI(c);
    JLayer l = (JLayer) c;
    l.setLayerEventMask(AWTEvent.KEY_EVENT_MASK);
 }

 public void uninstallUI(JComponent c) {
     super.uninstallUI(c);
     JLayer l = (JLayer) c;
     l.setLayerEventMask(0);
 }
 
```
    Parameters:
    
    e - the KeyEvent to be processed
    
    l - the layer this LayerUI instance is set to
    
    See Also:
    
    JLayer.setLayerEventMask(long), installUI(javax.swing.JComponent), uninstallUI(javax.swing.JComponent)
  - processMouseEvent
```
protected void processMouseEvent(MouseEvent e,
                                 JLayer<? extends V> l)
```
    Processes mouse events occurring on the JLayer or any of its subcomponents.
    This method is not called unless mouse events are enabled for the JLayer objects, this LayerUI is set to. Mouse events are enabled in the overridden installUI(javax.swing.JComponent) method and should be disabled in the uninstallUI(javax.swing.JComponent) method after that.
```
 public void installUI(JComponent c) {
    super.installUI(c);
    JLayer l = (JLayer) c;
    l.setLayerEventMask(AWTEvent.MOUSE_EVENT_MASK);
 }

 public void uninstallUI(JComponent c) {
     super.uninstallUI(c);
     JLayer l = (JLayer) c;
     l.setLayerEventMask(0);
 }
 
```
    Parameters:
    
    e - the MouseEvent to be processed
    
    l - the layer this LayerUI instance is set to
    
    See Also:
    
    JLayer.setLayerEventMask(long), installUI(javax.swing.JComponent), uninstallUI(javax.swing.JComponent)
  - processMouseMotionEvent
```
protected void processMouseMotionEvent(MouseEvent e,
                                       JLayer<? extends V> l)
```
    Processes mouse motion event occurring on the JLayer or any of its subcomponents.
    This method is not called unless mouse motion events are enabled for the JLayer objects, this LayerUI is set to. Mouse motion events are enabled in the overridden installUI(javax.swing.JComponent) method and should be disabled in the uninstallUI(javax.swing.JComponent) method after that.
```
 public void installUI(JComponent c) {
    super.installUI(c);
    JLayer l = (JLayer) c;
    l.setLayerEventMask(AWTEvent.MOUSE_MOTION_EVENT_MASK);
 }

 public void uninstallUI(JComponent c) {
     super.uninstallUI(c);
     JLayer l = (JLayer) c;
     l.setLayerEventMask(0);
 }
 
```
    Parameters:
    
    e - the MouseEvent to be processed
    
    l - the layer this LayerUI instance is set to
    
    See Also:
    
    JLayer.setLayerEventMask(long), installUI(javax.swing.JComponent), uninstallUI(javax.swing.JComponent)
  - processMouseWheelEvent
```
protected void processMouseWheelEvent(MouseWheelEvent e,
                                      JLayer<? extends V> l)
```
    Processes mouse wheel event occurring on the JLayer or any of its subcomponents.
    This method is not called unless mouse wheel events are enabled for the JLayer objects, this LayerUI is set to. Mouse wheel events are enabled in the overridden installUI(javax.swing.JComponent) method and should be disabled in the uninstallUI(javax.swing.JComponent) method after that.
```
 public void installUI(JComponent c) {
    super.installUI(c);
    JLayer l = (JLayer) c;
    l.setLayerEventMask(AWTEvent.MOUSE_WHEEL_EVENT_MASK);
 }

 public void uninstallUI(JComponent c) {
     super.uninstallUI(c);
     JLayer l = (JLayer) c;
     l.setLayerEventMask(0);
 }
 
```
    Parameters:
    
    e - the MouseEvent to be processed
    
    l - the layer this LayerUI instance is set to
    
    See Also:
    
    JLayer.setLayerEventMask(long), installUI(javax.swing.JComponent), uninstallUI(javax.swing.JComponent)
  - processInputMethodEvent
```
protected void processInputMethodEvent(InputMethodEvent e,
                                       JLayer<? extends V> l)
```
    Processes input event occurring on the JLayer or any of its subcomponents.
    This method is not called unless input events are enabled for the JLayer objects, this LayerUI is set to. Input events are enabled in the overridden installUI(javax.swing.JComponent) method and should be disabled in the uninstallUI(javax.swing.JComponent) method after that.
```
 public void installUI(JComponent c) {
    super.installUI(c);
    JLayer l = (JLayer) c;
    l.setLayerEventMask(AWTEvent.INPUT_METHOD_EVENT_MASK);
 }

 public void uninstallUI(JComponent c) {
     super.uninstallUI(c);
     JLayer l = (JLayer) c;
     l.setLayerEventMask(0);
 }
 
```
    Parameters:
    
    e - the InputMethodEvent to be processed
    
    l - the layer this LayerUI instance is set to
    
    See Also:
    
    JLayer.setLayerEventMask(long), installUI(javax.swing.JComponent), uninstallUI(javax.swing.JComponent)
  - processHierarchyEvent
```
protected void processHierarchyEvent(HierarchyEvent e,
                                     JLayer<? extends V> l)
```
    Processes hierarchy event occurring on the JLayer or any of its subcomponents.
    This method is not called unless hierarchy events are enabled for the JLayer objects, this LayerUI is set to. Hierarchy events are enabled in the overridden installUI(javax.swing.JComponent) method and should be disabled in the uninstallUI(javax.swing.JComponent) method after that.
```
 public void installUI(JComponent c) {
    super.installUI(c);
    JLayer l = (JLayer) c;
    l.setLayerEventMask(AWTEvent.HIERARCHY_EVENT_MASK);
 }

 public void uninstallUI(JComponent c) {
     super.uninstallUI(c);
     JLayer l = (JLayer) c;
     l.setLayerEventMask(0);
 }
 
```
    Parameters:
    
    e - the HierarchyEvent to be processed
    
    l - the layer this LayerUI instance is set to
    
    See Also:
    
    JLayer.setLayerEventMask(long), installUI(javax.swing.JComponent), uninstallUI(javax.swing.JComponent)
  - processHierarchyBoundsEvent
```
protected void processHierarchyBoundsEvent(HierarchyEvent e,
                                           JLayer<? extends V> l)
```
    Processes hierarchy bounds event occurring on the JLayer or any of its subcomponents.
    This method is not called unless hierarchy bounds events are enabled for the JLayer objects, this LayerUI is set to. Hierarchy bounds events are enabled in the overridden installUI(javax.swing.JComponent) method and should be disabled in the uninstallUI(javax.swing.JComponent) method after that.
```
 public void installUI(JComponent c) {
    super.installUI(c);
    JLayer l = (JLayer) c;
    l.setLayerEventMask(AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK);
 }

 public void uninstallUI(JComponent c) {
     super.uninstallUI(c);
     JLayer l = (JLayer) c;
     l.setLayerEventMask(0);
 }
 
```
    Parameters:
    
    e - the HierarchyEvent to be processed
    
    l - the layer this LayerUI instance is set to
    
    See Also:
    
    JLayer.setLayerEventMask(long), installUI(javax.swing.JComponent), uninstallUI(javax.swing.JComponent)
  - updateUI
```
public void updateUI(JLayer<? extends V> l)
```
    Invoked when JLayer.updateUI() is called by the JLayer this LayerUI is set to.
    
    Parameters:
    
    l - the JLayer which UI is updated
  - installUI
```
public void installUI(JComponent c)
```
    Configures the JLayer this LayerUI is set to. The default implementation registers the passed JLayer component as a PropertyChangeListener for the property changes of this LayerUI.
    
    Overrides:
    
    installUI in class ComponentUI
    
    Parameters:
    
    c - the JLayer 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)
```
    Reverses the configuration which was previously set in the installUI(JComponent) method. The default implementation unregisters the passed JLayer component as a PropertyChangeListener for the property changes of this LayerUI.
    
    Overrides:
    
    uninstallUI in class ComponentUI
    
    Parameters:
    
    c - the component from which this UI delegate is being removed.
    
    See Also:
    
    ComponentUI.installUI(javax.swing.JComponent), JComponent.updateUI()
  - addPropertyChangeListener
```
public void addPropertyChangeListener(PropertyChangeListener listener)
```
    Adds a PropertyChangeListener to the listener list. The listener is registered for all bound properties of this class.
    If listener is null, no exception is thrown and no action is performed.
    
    Parameters:
    
    listener - the property change listener to be added
    
    See Also:
    
    removePropertyChangeListener(java.beans.PropertyChangeListener), getPropertyChangeListeners(), addPropertyChangeListener(String, java.beans.PropertyChangeListener)
  - removePropertyChangeListener
```
public void removePropertyChangeListener(PropertyChangeListener listener)
```
    Removes a PropertyChangeListener from the listener list. This method should be used to remove PropertyChangeListeners that were registered for all bound properties of this class.
    If listener is null, no exception is thrown and no action is performed.
    
    Parameters:
    
    listener - the PropertyChangeListener to be removed
    
    See Also:
    
    addPropertyChangeListener(java.beans.PropertyChangeListener), getPropertyChangeListeners(), removePropertyChangeListener(String, PropertyChangeListener)
  - getPropertyChangeListeners
```
public PropertyChangeListener[] getPropertyChangeListeners()
```
    Returns an array of all the property change listeners registered on this component.
    
    Returns:
    
    all of this ui's PropertyChangeListeners or an empty array if no property change listeners are currently registered
    
    See Also:
    
    addPropertyChangeListener(java.beans.PropertyChangeListener), removePropertyChangeListener(java.beans.PropertyChangeListener), getPropertyChangeListeners(String)
  - addPropertyChangeListener
```
public void addPropertyChangeListener(String propertyName,
                                      PropertyChangeListener listener)
```
    Adds a PropertyChangeListener to the listener list for a specific property.
    If propertyName or listener is null, no exception is thrown and no action is taken.
    
    Parameters:
    
    propertyName - one of the property names listed above
    
    listener - the property change listener to be added
    
    See Also:
    
    removePropertyChangeListener(String, PropertyChangeListener), getPropertyChangeListeners(String), addPropertyChangeListener(String, PropertyChangeListener)
  - removePropertyChangeListener
```
public void removePropertyChangeListener(String propertyName,
                                         PropertyChangeListener listener)
```
    Removes a PropertyChangeListener from the listener list for a specific property. This method should be used to remove PropertyChangeListeners that were registered for a specific bound property.
    If propertyName or listener is null, no exception is thrown and no action is taken.
    
    Parameters:
    
    propertyName - a valid property name
    
    listener - the PropertyChangeListener to be removed
    
    See Also:
    
    addPropertyChangeListener(String, PropertyChangeListener), getPropertyChangeListeners(String), removePropertyChangeListener(PropertyChangeListener)
  - getPropertyChangeListeners
```
public PropertyChangeListener[] getPropertyChangeListeners(String propertyName)
```
    Returns an array of all the listeners which have been associated with the named property.
    
    Parameters:
    
    propertyName - The name of the property being listened to
    
    Returns:
    
    all of the PropertyChangeListeners associated with the named property; if no such listeners have been added or if propertyName is null, an empty array is returned
    
    See Also:
    
    addPropertyChangeListener(String, PropertyChangeListener), removePropertyChangeListener(String, PropertyChangeListener), getPropertyChangeListeners()
  - firePropertyChange
```
protected void firePropertyChange(String propertyName,
                                  Object oldValue,
                                  Object newValue)
```
    Support for reporting bound property changes for Object properties. This method can be called when a bound property has changed and it will send the appropriate PropertyChangeEvent to any registered PropertyChangeListeners.
    
    Parameters:
    
    propertyName - the property whose value has changed
    
    oldValue - the property's previous value
    
    newValue - the property's new value
  - applyPropertyChange
```
public void applyPropertyChange(PropertyChangeEvent evt,
                                JLayer<? extends V> l)
```
    Notifies the LayerUI when any of its property are changed and enables updating every JLayer this LayerUI instance is set to.
    
    Parameters:
    
    evt - the PropertyChangeEvent generated by this LayerUI
    
    l - the JLayer this LayerUI is set to
  - getBaseline
```
public int getBaseline(JComponent c,
                       int width,
                       int height)
```
    If the JLayer's view component is not null, this calls the view's getBaseline() method. Otherwise, the default implementation is called.
    
    Overrides:
    
    getBaseline in class ComponentUI
    
    Parameters:
    
    c - JLayer to return baseline resize behavior for
    
    width - the width to get the baseline for
    
    height - the height to get the baseline for
    
    Returns:
    
    baseline or a value < 0 indicating there is no reasonable baseline
    
    See Also:
    
    JComponent.getBaseline(int,int)
  - getBaselineResizeBehavior
```
public Component.BaselineResizeBehavior getBaselineResizeBehavior(JComponent c)
```
    If the JLayer's view component is not null, this returns the result of the view's getBaselineResizeBehavior() method. Otherwise, the default implementation is called.
    
    Overrides:
    
    getBaselineResizeBehavior in class ComponentUI
    
    Parameters:
    
    c - JLayer to return baseline resize behavior for
    
    Returns:
    
    an enum indicating how the baseline changes as the component size changes
    
    See Also:
    
    JComponent.getBaseline(int, int)
  - doLayout
```
public void doLayout(JLayer<? extends V> l)
```
    Causes the passed instance of JLayer to lay out its components.
    
    Parameters:
    
    l - the JLayer component where this UI delegate is being installed
  - getPreferredSize
```
public Dimension getPreferredSize(JComponent c)
```
    If the JLayer's view component is not null, this returns the result of the view's getPreferredSize() method. Otherwise, the default implementation is used.
    
    Overrides:
    
    getPreferredSize in class ComponentUI
    
    Parameters:
    
    c - JLayer to return preferred size for
    
    Returns:
    
    preferred size for the passed JLayer
    
    See Also:
    
    JComponent.getPreferredSize(), LayoutManager.preferredLayoutSize(java.awt.Container)
  - getMinimumSize
```
public Dimension getMinimumSize(JComponent c)
```
    If the JLayer's view component is not null, this returns the result of the view's getMinimalSize() method. Otherwise, the default implementation is used.
    
    Overrides:
    
    getMinimumSize in class ComponentUI
    
    Parameters:
    
    c - JLayer to return preferred size for
    
    Returns:
    
    minimal size for the passed JLayer
    
    See Also:
    
    JComponent.getMinimumSize(), LayoutManager.minimumLayoutSize(java.awt.Container), ComponentUI.getPreferredSize(javax.swing.JComponent)
  - getMaximumSize
```
public Dimension getMaximumSize(JComponent c)
```
    If the JLayer's view component is not null, this returns the result of the view's getMaximumSize() method. Otherwise, the default implementation is used.
    
    Overrides:
    
    getMaximumSize in class ComponentUI
    
    Parameters:
    
    c - JLayer to return preferred size for
    
    Returns:
    
    maximum size for the passed JLayer
    
    See Also:
    
    JComponent.getMaximumSize(), LayoutManager2.maximumLayoutSize(java.awt.Container)
  - paintImmediately
```
public void paintImmediately(int x,
                             int y,
                             int width,
                             int height,
                             JLayer<? extends V> l)
```
    Paints the specified region in the JLayer this LayerUI is set to, immediately.
    This method is to be overridden when the dirty region needs to be changed. The default implementation delegates its functionality to JComponent.paintImmediately(int, int, int, int).
    
    Parameters:
    
    x - the x value of the region to be painted
    
    y - the y value of the region to be painted
    
    width - the width of the region to be painted
    
    height - the height of the region to be painted
    
    See Also:
    
    JComponent.paintImmediately(int, int, int, int)

Class LayerUI<V extends Component>

Constructor Summary

Constructors

Method Summary

Methods inherited from class javax.swing.plaf.ComponentUI

Methods inherited from class java.lang.Object

Constructor Detail

LayerUI

Method Detail

paint

eventDispatched

processComponentEvent

processFocusEvent

processKeyEvent

processMouseEvent

processMouseMotionEvent

processMouseWheelEvent

processInputMethodEvent

processHierarchyEvent

processHierarchyBoundsEvent

updateUI

installUI

uninstallUI

addPropertyChangeListener

removePropertyChangeListener

getPropertyChangeListeners

addPropertyChangeListener

removePropertyChangeListener

getPropertyChangeListeners

firePropertyChange

applyPropertyChange

getBaseline

getBaselineResizeBehavior

doLayout

getPreferredSize

getMinimumSize

getMaximumSize

paintImmediately