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720 lines
26 KiB
720 lines
26 KiB
/*
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* Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.swing.plaf;
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import javax.swing.*;
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import java.awt.*;
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import java.awt.event.*;
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import java.beans.PropertyChangeEvent;
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import java.beans.PropertyChangeSupport;
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import java.beans.PropertyChangeListener;
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import java.io.Serializable;
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/**
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* The base class for all {@link javax.swing.JLayer}'s UI delegates.
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* <p>
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* {@link #paint(java.awt.Graphics, javax.swing.JComponent)} method performs the
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* painting of the {@code JLayer}
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* and {@link #eventDispatched(AWTEvent, JLayer)} method is notified
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* about any {@code AWTEvent}s which have been generated by a {@code JLayer}
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* or any of its subcomponents.
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* <p>
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* The {@code LayerUI} differs from the UI delegates of the other components,
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* because it is LookAndFeel independent and is not updated by default when
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* the system LookAndFeel is changed.
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* <p>
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* The subclasses of {@code LayerUI} can either be stateless and shareable
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* by multiple {@code JLayer}s or not shareable.
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*
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* @param <V> one of the super types of {@code JLayer}'s view component
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*
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* @see JLayer#setUI(LayerUI)
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* @see JLayer#setView(Component)
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* @see JLayer#getView()
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* @since 1.7
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*
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* @author Alexander Potochkin
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*/
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public class LayerUI<V extends Component>
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extends ComponentUI implements Serializable {
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private final PropertyChangeSupport propertyChangeSupport =
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new PropertyChangeSupport(this);
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/**
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* Paints the specified component.
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* Subclasses should override this method and use
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* the specified {@code Graphics} object to
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* render the content of the component.
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* <p>
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* The default implementation paints the passed component as is.
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*
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* @param g the {@code Graphics} context in which to paint
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* @param c the component being painted
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*/
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public void paint(Graphics g, JComponent c) {
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c.paint(g);
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}
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/**
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* Processes {@code AWTEvent}s for {@code JLayer}
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* and <b>all its descendants</b> to this {@code LayerUI} instance.
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* <p>
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* To enable the {@code AWTEvent}s of a particular type,
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* you call {@link JLayer#setLayerEventMask}
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* in {@link #installUI(javax.swing.JComponent)}
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* and set the layer event mask to {@code 0}
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* in {@link #uninstallUI(javax.swing.JComponent)} after that.
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* By default this method calls the appropriate
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* {@code process<event type>Event}
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* method for the given class of event.
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* <p>
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* <b>Note:</b> Events are processed only for displayable {@code JLayer}s.
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*
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* @param e the event to be dispatched
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* @param l the layer this LayerUI is set to
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*
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* @see JLayer#setLayerEventMask(long)
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* @see Component#isDisplayable()
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* @see #processComponentEvent
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* @see #processFocusEvent
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* @see #processKeyEvent
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* @see #processMouseEvent
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* @see #processMouseMotionEvent
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* @see #processInputMethodEvent
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* @see #processHierarchyEvent
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* @see #processMouseWheelEvent
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*/
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public void eventDispatched(AWTEvent e, JLayer<? extends V> l){
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if (e instanceof FocusEvent) {
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processFocusEvent((FocusEvent)e, l);
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} else if (e instanceof MouseEvent) {
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switch(e.getID()) {
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case MouseEvent.MOUSE_PRESSED:
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case MouseEvent.MOUSE_RELEASED:
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case MouseEvent.MOUSE_CLICKED:
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case MouseEvent.MOUSE_ENTERED:
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case MouseEvent.MOUSE_EXITED:
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processMouseEvent((MouseEvent)e, l);
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break;
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case MouseEvent.MOUSE_MOVED:
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case MouseEvent.MOUSE_DRAGGED:
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processMouseMotionEvent((MouseEvent)e, l);
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break;
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case MouseEvent.MOUSE_WHEEL:
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processMouseWheelEvent((MouseWheelEvent)e, l);
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break;
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}
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} else if (e instanceof KeyEvent) {
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processKeyEvent((KeyEvent)e, l);
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} else if (e instanceof ComponentEvent) {
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processComponentEvent((ComponentEvent)e, l);
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} else if (e instanceof InputMethodEvent) {
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processInputMethodEvent((InputMethodEvent)e, l);
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} else if (e instanceof HierarchyEvent) {
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switch (e.getID()) {
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case HierarchyEvent.HIERARCHY_CHANGED:
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processHierarchyEvent((HierarchyEvent)e, l);
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break;
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case HierarchyEvent.ANCESTOR_MOVED:
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case HierarchyEvent.ANCESTOR_RESIZED:
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processHierarchyBoundsEvent((HierarchyEvent)e, l);
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break;
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}
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}
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}
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/**
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* Processes component events occurring on the {@link JLayer}
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* or any of its subcomponents.
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* <p>
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* This method is not called unless component events are
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* enabled for the {@code JLayer} objects, this {@code LayerUI} is set to.
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* Component events are enabled in the overridden {@link #installUI} method
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* and should be disabled in the {@link #uninstallUI} method after that.
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* <pre>
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* public void installUI(JComponent c) {
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* super.installUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(AWTEvent.COMPONENT_EVENT_MASK);
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* }
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*
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* public void uninstallUI(JComponent c) {
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* super.uninstallUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(0);
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* }
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* </pre>
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*
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* @param e the {@code ComponentEvent} to be processed
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* @param l the layer this {@code LayerUI} instance is set to
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*
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* @see JLayer#setLayerEventMask(long)
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* @see #installUI(javax.swing.JComponent)
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* @see #uninstallUI(javax.swing.JComponent)
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*/
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protected void processComponentEvent(ComponentEvent e, JLayer<? extends V> l) {
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}
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/**
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* Processes focus events occurring on the {@link JLayer}
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* or any of its subcomponents.
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* <p>
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* This method is not called unless focus events are
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* enabled for the {@code JLayer} objects, this {@code LayerUI} is set to.
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* Focus events are enabled in the overridden {@link #installUI} method
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* and should be disabled in the {@link #uninstallUI} method after that.
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* <pre>
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* public void installUI(JComponent c) {
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* super.installUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(AWTEvent.FOCUS_EVENT_MASK);
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* }
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*
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* public void uninstallUI(JComponent c) {
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* super.uninstallUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(0);
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* }
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* </pre>
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*
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* @param e the {@code FocusEvent} to be processed
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* @param l the layer this {@code LayerUI} instance is set to
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*
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* @see JLayer#setLayerEventMask(long)
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* @see #installUI(javax.swing.JComponent)
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* @see #uninstallUI(javax.swing.JComponent)
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*/
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protected void processFocusEvent(FocusEvent e, JLayer<? extends V> l) {
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}
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/**
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* Processes key events occurring on the {@link JLayer}
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* or any of its subcomponents.
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* <p>
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* This method is not called unless key events are
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* enabled for the {@code JLayer} objects, this {@code LayerUI} is set to.
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* Key events are enabled in the overridden {@link #installUI} method
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* and should be disabled in the {@link #uninstallUI} method after that.
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* <pre>
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* public void installUI(JComponent c) {
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* super.installUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(AWTEvent.KEY_EVENT_MASK);
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* }
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*
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* public void uninstallUI(JComponent c) {
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* super.uninstallUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(0);
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* }
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* </pre>
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*
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* @param e the {@code KeyEvent} to be processed
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* @param l the layer this {@code LayerUI} instance is set to
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*
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* @see JLayer#setLayerEventMask(long)
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* @see #installUI(javax.swing.JComponent)
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* @see #uninstallUI(javax.swing.JComponent)
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*/
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protected void processKeyEvent(KeyEvent e, JLayer<? extends V> l) {
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}
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/**
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* Processes mouse events occurring on the {@link JLayer}
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* or any of its subcomponents.
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* <p>
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* This method is not called unless mouse events are
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* enabled for the {@code JLayer} objects, this {@code LayerUI} is set to.
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* Mouse events are enabled in the overridden {@link #installUI} method
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* and should be disabled in the {@link #uninstallUI} method after that.
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* <pre>
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* public void installUI(JComponent c) {
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* super.installUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(AWTEvent.MOUSE_EVENT_MASK);
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* }
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*
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* public void uninstallUI(JComponent c) {
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* super.uninstallUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(0);
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* }
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* </pre>
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*
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* @param e the {@code MouseEvent} to be processed
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* @param l the layer this {@code LayerUI} instance is set to
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*
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* @see JLayer#setLayerEventMask(long)
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* @see #installUI(javax.swing.JComponent)
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* @see #uninstallUI(javax.swing.JComponent)
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*/
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protected void processMouseEvent(MouseEvent e, JLayer<? extends V> l) {
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}
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/**
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* Processes mouse motion event occurring on the {@link JLayer}
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* or any of its subcomponents.
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* <p>
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* This method is not called unless mouse motion events are
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* enabled for the {@code JLayer} objects, this {@code LayerUI} is set to.
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* Mouse motion events are enabled in the overridden {@link #installUI} method
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* and should be disabled in the {@link #uninstallUI} method after that.
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* <pre>
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* public void installUI(JComponent c) {
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* super.installUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(AWTEvent.MOUSE_MOTION_EVENT_MASK);
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* }
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*
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* public void uninstallUI(JComponent c) {
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* super.uninstallUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(0);
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* }
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* </pre>
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*
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* @param e the {@code MouseEvent} to be processed
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* @param l the layer this {@code LayerUI} instance is set to
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*
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* @see JLayer#setLayerEventMask(long)
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* @see #installUI(javax.swing.JComponent)
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* @see #uninstallUI(javax.swing.JComponent)
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*/
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protected void processMouseMotionEvent(MouseEvent e, JLayer<? extends V> l) {
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}
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/**
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* Processes mouse wheel event occurring on the {@link JLayer}
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* or any of its subcomponents.
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* <p>
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* This method is not called unless mouse wheel events are
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* enabled for the {@code JLayer} objects, this {@code LayerUI} is set to.
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* Mouse wheel events are enabled in the overridden {@link #installUI} method
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* and should be disabled in the {@link #uninstallUI} method after that.
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* <pre>
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* public void installUI(JComponent c) {
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* super.installUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(AWTEvent.MOUSE_WHEEL_EVENT_MASK);
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* }
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*
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* public void uninstallUI(JComponent c) {
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* super.uninstallUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(0);
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* }
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* </pre>
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*
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* @param e the {@code MouseEvent} to be processed
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* @param l the layer this {@code LayerUI} instance is set to
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*
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* @see JLayer#setLayerEventMask(long)
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* @see #installUI(javax.swing.JComponent)
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* @see #uninstallUI(javax.swing.JComponent)
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*/
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protected void processMouseWheelEvent(MouseWheelEvent e, JLayer<? extends V> l) {
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}
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/**
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* Processes input event occurring on the {@link JLayer}
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* or any of its subcomponents.
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* <p>
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* This method is not called unless input events are
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* enabled for the {@code JLayer} objects, this {@code LayerUI} is set to.
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* Input events are enabled in the overridden {@link #installUI} method
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* and should be disabled in the {@link #uninstallUI} method after that.
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* <pre>
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* public void installUI(JComponent c) {
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* super.installUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(AWTEvent.INPUT_METHOD_EVENT_MASK);
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* }
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*
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* public void uninstallUI(JComponent c) {
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* super.uninstallUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(0);
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* }
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* </pre>
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*
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* @param e the {@code InputMethodEvent} to be processed
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* @param l the layer this {@code LayerUI} instance is set to
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*
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* @see JLayer#setLayerEventMask(long)
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* @see #installUI(javax.swing.JComponent)
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* @see #uninstallUI(javax.swing.JComponent)
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*/
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protected void processInputMethodEvent(InputMethodEvent e, JLayer<? extends V> l) {
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}
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/**
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* Processes hierarchy event occurring on the {@link JLayer}
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* or any of its subcomponents.
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* <p>
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* This method is not called unless hierarchy events are
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* enabled for the {@code JLayer} objects, this {@code LayerUI} is set to.
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* Hierarchy events are enabled in the overridden {@link #installUI} method
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* and should be disabled in the {@link #uninstallUI} method after that.
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* <pre>
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* public void installUI(JComponent c) {
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* super.installUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(AWTEvent.HIERARCHY_EVENT_MASK);
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* }
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*
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* public void uninstallUI(JComponent c) {
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* super.uninstallUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(0);
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* }
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* </pre>
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*
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* @param e the {@code HierarchyEvent} to be processed
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* @param l the layer this {@code LayerUI} instance is set to
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*
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* @see JLayer#setLayerEventMask(long)
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* @see #installUI(javax.swing.JComponent)
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* @see #uninstallUI(javax.swing.JComponent)
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*/
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protected void processHierarchyEvent(HierarchyEvent e, JLayer<? extends V> l) {
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}
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/**
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* Processes hierarchy bounds event occurring on the {@link JLayer}
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* or any of its subcomponents.
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* <p>
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* This method is not called unless hierarchy bounds events are
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* enabled for the {@code JLayer} objects, this {@code LayerUI} is set to.
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* Hierarchy bounds events are enabled in the overridden {@link #installUI}
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* method and should be disabled in the {@link #uninstallUI} method after that.
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* <pre>
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* public void installUI(JComponent c) {
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* super.installUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK);
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* }
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*
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* public void uninstallUI(JComponent c) {
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* super.uninstallUI(c);
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* JLayer l = (JLayer) c;
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* l.setLayerEventMask(0);
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* }
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* </pre>
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*
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* @param e the {@code HierarchyEvent} to be processed
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* @param l the layer this {@code LayerUI} instance is set to
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*
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* @see JLayer#setLayerEventMask(long)
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* @see #installUI(javax.swing.JComponent)
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* @see #uninstallUI(javax.swing.JComponent)
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*/
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protected void processHierarchyBoundsEvent(HierarchyEvent e, JLayer<? extends V> l) {
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}
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/**
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* Invoked when {@link javax.swing.JLayer#updateUI()} is called
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* by the {@code JLayer} this {@code LayerUI} is set to.
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*
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* @param l the {@code JLayer} which UI is updated
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*/
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public void updateUI(JLayer<? extends V> l){
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}
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/**
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* Configures the {@code JLayer} this {@code LayerUI} is set to.
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* The default implementation registers the passed {@code JLayer} component
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* as a {@code PropertyChangeListener} for the property changes of this {@code LayerUI}.
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*
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* @param c the {@code JLayer} component where this UI delegate is being installed
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*/
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public void installUI(JComponent c) {
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addPropertyChangeListener((JLayer) c);
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}
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/**
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* Reverses the configuration which was previously set
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* in the {@link #installUI(JComponent)} method.
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* The default implementation unregisters the passed {@code JLayer} component
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* as a {@code PropertyChangeListener} for the property changes of this {@code LayerUI}.
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*
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* @param c the component from which this UI delegate is being removed.
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*/
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public void uninstallUI(JComponent c) {
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removePropertyChangeListener((JLayer) c);
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}
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/**
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* Adds a PropertyChangeListener to the listener list. The listener is
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* registered for all bound properties of this class.
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* <p>
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* If {@code listener} is {@code null},
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* no exception is thrown and no action is performed.
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*
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* @param listener the property change listener to be added
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* @see #removePropertyChangeListener
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* @see #getPropertyChangeListeners
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* @see #addPropertyChangeListener(String, java.beans.PropertyChangeListener)
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*/
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public void addPropertyChangeListener(PropertyChangeListener listener) {
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propertyChangeSupport.addPropertyChangeListener(listener);
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}
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/**
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* Removes a PropertyChangeListener from the listener list. This method
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* should be used to remove PropertyChangeListeners that were registered
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* for all bound properties of this class.
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* <p>
|
|
* If {@code listener} is {@code null},
|
|
* no exception is thrown and no action is performed.
|
|
*
|
|
* @param listener the PropertyChangeListener to be removed
|
|
* @see #addPropertyChangeListener
|
|
* @see #getPropertyChangeListeners
|
|
* @see #removePropertyChangeListener(String, PropertyChangeListener)
|
|
*/
|
|
public void removePropertyChangeListener(PropertyChangeListener listener) {
|
|
propertyChangeSupport.removePropertyChangeListener(listener);
|
|
}
|
|
|
|
/**
|
|
* Returns an array of all the property change listeners
|
|
* registered on this component.
|
|
*
|
|
* @return all of this ui's {@code PropertyChangeListener}s
|
|
* or an empty array if no property change
|
|
* listeners are currently registered
|
|
* @see #addPropertyChangeListener
|
|
* @see #removePropertyChangeListener
|
|
* @see #getPropertyChangeListeners(String)
|
|
*/
|
|
public PropertyChangeListener[] getPropertyChangeListeners() {
|
|
return propertyChangeSupport.getPropertyChangeListeners();
|
|
}
|
|
|
|
/**
|
|
* Adds a PropertyChangeListener to the listener list for a specific
|
|
* property.
|
|
* <p>
|
|
* If {@code propertyName} or {@code listener} is {@code null},
|
|
* no exception is thrown and no action is taken.
|
|
*
|
|
* @param propertyName one of the property names listed above
|
|
* @param listener the property change listener to be added
|
|
* @see #removePropertyChangeListener(String, PropertyChangeListener)
|
|
* @see #getPropertyChangeListeners(String)
|
|
* @see #addPropertyChangeListener(String, PropertyChangeListener)
|
|
*/
|
|
public void addPropertyChangeListener(String propertyName,
|
|
PropertyChangeListener listener) {
|
|
propertyChangeSupport.addPropertyChangeListener(propertyName, listener);
|
|
}
|
|
|
|
/**
|
|
* Removes a {@code PropertyChangeListener} from the listener
|
|
* list for a specific property. This method should be used to remove
|
|
* {@code PropertyChangeListener}s
|
|
* that were registered for a specific bound property.
|
|
* <p>
|
|
* If {@code propertyName} or {@code listener} is {@code null},
|
|
* no exception is thrown and no action is taken.
|
|
*
|
|
* @param propertyName a valid property name
|
|
* @param listener the PropertyChangeListener to be removed
|
|
* @see #addPropertyChangeListener(String, PropertyChangeListener)
|
|
* @see #getPropertyChangeListeners(String)
|
|
* @see #removePropertyChangeListener(PropertyChangeListener)
|
|
*/
|
|
public void removePropertyChangeListener(String propertyName,
|
|
PropertyChangeListener listener) {
|
|
propertyChangeSupport.removePropertyChangeListener(propertyName, listener);
|
|
}
|
|
|
|
/**
|
|
* Returns an array of all the listeners which have been associated
|
|
* with the named property.
|
|
*
|
|
* @param propertyName The name of the property being listened to
|
|
* @return all of the {@code PropertyChangeListener}s associated with
|
|
* the named property; if no such listeners have been added or
|
|
* if {@code propertyName} is {@code null}, an empty
|
|
* array is returned
|
|
* @see #addPropertyChangeListener(String, PropertyChangeListener)
|
|
* @see #removePropertyChangeListener(String, PropertyChangeListener)
|
|
* @see #getPropertyChangeListeners
|
|
*/
|
|
public PropertyChangeListener[] getPropertyChangeListeners(String propertyName) {
|
|
return propertyChangeSupport.getPropertyChangeListeners(propertyName);
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* @param propertyName the property whose value has changed
|
|
* @param oldValue the property's previous value
|
|
* @param newValue the property's new value
|
|
*/
|
|
protected void firePropertyChange(String propertyName,
|
|
Object oldValue, Object newValue) {
|
|
propertyChangeSupport.firePropertyChange(propertyName, oldValue, newValue);
|
|
}
|
|
|
|
/**
|
|
* Notifies the {@code LayerUI} when any of its property are changed
|
|
* and enables updating every {@code JLayer}
|
|
* this {@code LayerUI} instance is set to.
|
|
*
|
|
* @param evt the PropertyChangeEvent generated by this {@code LayerUI}
|
|
* @param l the {@code JLayer} this LayerUI is set to
|
|
*/
|
|
public void applyPropertyChange(PropertyChangeEvent evt, JLayer<? extends V> l) {
|
|
}
|
|
|
|
/**
|
|
* If the {@code JLayer}'s view component is not {@code null},
|
|
* this calls the view's {@code getBaseline()} method.
|
|
* Otherwise, the default implementation is called.
|
|
*
|
|
* @param c {@code JLayer} to return baseline resize behavior for
|
|
* @param width the width to get the baseline for
|
|
* @param height the height to get the baseline for
|
|
* @return baseline or a value < 0 indicating there is no reasonable
|
|
* baseline
|
|
*/
|
|
public int getBaseline(JComponent c, int width, int height) {
|
|
JLayer l = (JLayer) c;
|
|
if (l.getView() != null) {
|
|
return l.getView().getBaseline(width, height);
|
|
}
|
|
return super.getBaseline(c, width, height);
|
|
}
|
|
|
|
/**
|
|
* If the {@code JLayer}'s view component is not {@code null},
|
|
* this returns the result of the view's {@code getBaselineResizeBehavior()} method.
|
|
* Otherwise, the default implementation is called.
|
|
*
|
|
* @param c {@code JLayer} to return baseline resize behavior for
|
|
* @return an enum indicating how the baseline changes as the component
|
|
* size changes
|
|
*/
|
|
public Component.BaselineResizeBehavior getBaselineResizeBehavior(JComponent c) {
|
|
JLayer l = (JLayer) c;
|
|
if (l.getView() != null) {
|
|
return l.getView().getBaselineResizeBehavior();
|
|
}
|
|
return super.getBaselineResizeBehavior(c);
|
|
}
|
|
|
|
/**
|
|
* Causes the passed instance of {@code JLayer} to lay out its components.
|
|
*
|
|
* @param l the {@code JLayer} component where this UI delegate is being installed
|
|
*/
|
|
public void doLayout(JLayer<? extends V> l) {
|
|
Component view = l.getView();
|
|
if (view != null) {
|
|
view.setBounds(0, 0, l.getWidth(), l.getHeight());
|
|
}
|
|
Component glassPane = l.getGlassPane();
|
|
if (glassPane != null) {
|
|
glassPane.setBounds(0, 0, l.getWidth(), l.getHeight());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* If the {@code JLayer}'s view component is not {@code null},
|
|
* this returns the result of the view's {@code getPreferredSize()} method.
|
|
* Otherwise, the default implementation is used.
|
|
*
|
|
* @param c {@code JLayer} to return preferred size for
|
|
* @return preferred size for the passed {@code JLayer}
|
|
*/
|
|
public Dimension getPreferredSize(JComponent c) {
|
|
JLayer l = (JLayer) c;
|
|
Component view = l.getView();
|
|
if (view != null) {
|
|
return view.getPreferredSize();
|
|
}
|
|
return super.getPreferredSize(c);
|
|
}
|
|
|
|
/**
|
|
* If the {@code JLayer}'s view component is not {@code null},
|
|
* this returns the result of the view's {@code getMinimalSize()} method.
|
|
* Otherwise, the default implementation is used.
|
|
*
|
|
* @param c {@code JLayer} to return preferred size for
|
|
* @return minimal size for the passed {@code JLayer}
|
|
*/
|
|
public Dimension getMinimumSize(JComponent c) {
|
|
JLayer l = (JLayer) c;
|
|
Component view = l.getView();
|
|
if (view != null) {
|
|
return view.getMinimumSize();
|
|
}
|
|
return super.getMinimumSize(c);
|
|
}
|
|
|
|
/**
|
|
* If the {@code JLayer}'s view component is not {@code null},
|
|
* this returns the result of the view's {@code getMaximumSize()} method.
|
|
* Otherwise, the default implementation is used.
|
|
*
|
|
* @param c {@code JLayer} to return preferred size for
|
|
* @return maximum size for the passed {@code JLayer}
|
|
*/
|
|
public Dimension getMaximumSize(JComponent c) {
|
|
JLayer l = (JLayer) c;
|
|
Component view = l.getView();
|
|
if (view != null) {
|
|
return view.getMaximumSize();
|
|
}
|
|
return super.getMaximumSize(c);
|
|
}
|
|
|
|
/**
|
|
* Paints the specified region in the {@code JLayer} this {@code LayerUI} is set to, immediately.
|
|
* <p>
|
|
* This method is to be overridden when the dirty region needs to be changed.
|
|
* The default implementation delegates its functionality to {@link JComponent#paintImmediately(int, int, int, int)}.
|
|
*
|
|
* @param x the x value of the region to be painted
|
|
* @param y the y value of the region to be painted
|
|
* @param width the width of the region to be painted
|
|
* @param height the height of the region to be painted
|
|
*
|
|
* @see JComponent#paintImmediately(int, int, int, int)
|
|
*/
|
|
public void paintImmediately(int x, int y, int width, int height, JLayer<? extends V> l) {
|
|
l.paintImmediately(x, y, width, height);
|
|
}
|
|
}
|