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.
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.
(add-property-change-listener this listener)
(add-property-change-listener this property-name 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.
property-name - one of the property names listed above - java.lang.String
listener - the property change listener to be added - java.beans.PropertyChangeListener
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. property-name - one of the property names listed above - `java.lang.String` listener - the property change listener to be added - `java.beans.PropertyChangeListener`
(apply-property-change this evt l)
Notifies the LayerUI when any of its property are changed and enables updating every JLayer this LayerUI instance is set to.
evt - the PropertyChangeEvent generated by this LayerUI - java.beans.PropertyChangeEvent
l - the JLayer this LayerUI is set to - javax.swing.JLayer
Notifies the LayerUI when any of its property are changed and enables updating every JLayer this LayerUI instance is set to. evt - the PropertyChangeEvent generated by this LayerUI - `java.beans.PropertyChangeEvent` l - the JLayer this LayerUI is set to - `javax.swing.JLayer`
(do-layout this l)
Causes the passed instance of JLayer to lay out its components.
l - the JLayer component where this UI delegate is being installed - javax.swing.JLayer
Causes the passed instance of JLayer to lay out its components. l - the JLayer component where this UI delegate is being installed - `javax.swing.JLayer`
(event-dispatched this e 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.
e - the event to be dispatched - java.awt.AWTEvent
l - the layer this LayerUI is set to - javax.swing.JLayer
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. e - the event to be dispatched - `java.awt.AWTEvent` l - the layer this LayerUI is set to - `javax.swing.JLayer`
(get-baseline this c width height)
If the JLayer's view component is not null, this calls the view's getBaseline() method. Otherwise, the default implementation is called.
c - JLayer to return baseline resize behavior for - javax.swing.JComponent
width - the width to get the baseline for - int
height - the height to get the baseline for - int
returns: baseline or a value < 0 indicating there is no reasonable
baseline - int
If the JLayer's view component is not null, this calls the view's getBaseline() method. Otherwise, the default implementation is called. c - JLayer to return baseline resize behavior for - `javax.swing.JComponent` width - the width to get the baseline for - `int` height - the height to get the baseline for - `int` returns: baseline or a value < 0 indicating there is no reasonable baseline - `int`
(get-baseline-resize-behavior this 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.
c - JLayer to return baseline resize behavior for - javax.swing.JComponent
returns: an enum indicating how the baseline changes as the component
size changes - java.awt.Component$BaselineResizeBehavior
If the JLayer's view component is not null, this returns the result of the view's getBaselineResizeBehavior() method. Otherwise, the default implementation is called. c - JLayer to return baseline resize behavior for - `javax.swing.JComponent` returns: an enum indicating how the baseline changes as the component size changes - `java.awt.Component$BaselineResizeBehavior`
(get-maximum-size this 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.
c - JLayer to return preferred size for - javax.swing.JComponent
returns: maximum size for the passed JLayer - java.awt.Dimension
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. c - JLayer to return preferred size for - `javax.swing.JComponent` returns: maximum size for the passed JLayer - `java.awt.Dimension`
(get-minimum-size this 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.
c - JLayer to return preferred size for - javax.swing.JComponent
returns: minimal size for the passed JLayer - java.awt.Dimension
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. c - JLayer to return preferred size for - `javax.swing.JComponent` returns: minimal size for the passed JLayer - `java.awt.Dimension`
(get-preferred-size this 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.
c - JLayer to return preferred size for - javax.swing.JComponent
returns: preferred size for the passed JLayer - java.awt.Dimension
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. c - JLayer to return preferred size for - `javax.swing.JComponent` returns: preferred size for the passed JLayer - `java.awt.Dimension`
(get-property-change-listeners this)
(get-property-change-listeners this property-name)
Returns an array of all the listeners which have been associated with the named property.
property-name - The name of the property being listened to - java.lang.String
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 - java.beans.PropertyChangeListener[]
Returns an array of all the listeners which have been associated with the named property. property-name - The name of the property being listened to - `java.lang.String` 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 - `java.beans.PropertyChangeListener[]`
(install-ui this 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.
c - the JLayer component where this UI delegate is being installed - javax.swing.JComponent
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. c - the JLayer component where this UI delegate is being installed - `javax.swing.JComponent`
(paint this g 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.
g - the Graphics context in which to paint - java.awt.Graphics
c - the component being painted - javax.swing.JComponent
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. g - the Graphics context in which to paint - `java.awt.Graphics` c - the component being painted - `javax.swing.JComponent`
(paint-immediately this x y width height 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).
x - the x value of the region to be painted - int
y - the y value of the region to be painted - int
width - the width of the region to be painted - int
height - the height of the region to be painted - int
l - javax.swing.JLayer
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). x - the x value of the region to be painted - `int` y - the y value of the region to be painted - `int` width - the width of the region to be painted - `int` height - the height of the region to be painted - `int` l - `javax.swing.JLayer`
(remove-property-change-listener this listener)
(remove-property-change-listener this property-name 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.
property-name - a valid property name - java.lang.String
listener - the PropertyChangeListener to be removed - java.beans.PropertyChangeListener
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. property-name - a valid property name - `java.lang.String` listener - the PropertyChangeListener to be removed - `java.beans.PropertyChangeListener`
(uninstall-ui this 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.
c - the component from which this UI delegate is being removed. - javax.swing.JComponent
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. c - the component from which this UI delegate is being removed. - `javax.swing.JComponent`
(update-ui this l)
Invoked when JLayer.updateUI() is called by the JLayer this LayerUI is set to.
l - the JLayer which UI is updated - javax.swing.JLayer
Invoked when JLayer.updateUI() is called by the JLayer this LayerUI is set to. l - the JLayer which UI is updated - `javax.swing.JLayer`
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