JFXPanel (JavaFX 28)
Description: declaration: module: javafx.swing, package: javafx.embed.swing, class: JFXPanel

# Class JFXPanel

java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
javafx.embed.swing.JFXPanel

All Implemented Interfaces:
  `ImageObserver, MenuContainer, Serializable`

public class JFXPanel extends JComponent
`JFXPanel` is a component to embed JavaFX content into Swing applications. The content to be displayed is specified with the `setScene(Scene)` method that accepts an instance of JavaFX `Scene`. After the scene is assigned, it gets repainted automatically. All the input and focus events are forwarded to the scene transparently to the developer.

There are some restrictions related to `JFXPanel`. As a Swing component, it should only be accessed from the event dispatch thread, except the `setScene(Scene)` method, which can be called either on the event dispatch thread or on the JavaFX application thread.

Here is a typical pattern how `JFXPanel` can used:

        public class Test {

            private static void initAndShowGUI() {
                // This method is invoked on Swing thread
                JFrame frame = new JFrame("FX");
                final JFXPanel fxPanel = new JFXPanel();
                frame.add(fxPanel);
                frame.setVisible(true);

                Platform.runLater(new Runnable() {
                    @Override
                    public void run() {
                        initFX(fxPanel);
                    }
                });
            }

            private static void initFX(JFXPanel fxPanel) {
                // This method is invoked on JavaFX thread
                Scene scene = createScene();
                fxPanel.setScene(scene);
            }

            public static void main(String[] args) {
                SwingUtilities.invokeLater(new Runnable() {
                    @Override
                    public void run() {
                        initAndShowGUI();
                    }
                });
            }
        }

Warning: Serialized objects of this class will not be compatible with future Swing or JavaFX releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing and the same version of JavaFX.

Since:
  JavaFX 2.0
See Also:
  - Serialized Form

- ## Nested Class Summary

  ### Nested classes/interfaces declared in class JComponent

  `JComponent.AccessibleJComponent`

  ### Nested classes/interfaces declared in class Container

  `Container.AccessibleAWTContainer`

  ### Nested classes/interfaces declared in class Component

  `Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy`

- ## Field Summary

  ### Fields declared in class JComponent

  `listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW`

  ### Fields declared in class Component

  `accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT`

  ### Fields declared in interface ImageObserver

  `ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `JFXPanel()`
  Creates a new `JFXPanel` object.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `addNotify()`
  Notifies this component that it now has a parent component.
  `Dimension`
  `getPreferredSize()`
  Returns the preferred size of this `JFXPanel`, either previously set with `JComponent.setPreferredSize(Dimension)` or based on the content of the JavaFX scene attached to this `JFXPanel`.
  `Scene`
  `getScene()`
  Returns the JavaFX scene attached to this `JFXPanel`.
  `final boolean`
  `isOpaque()`
  `JFXPanel`'s opacity is controlled by the JavaFX content which is displayed in this component, so this method overrides `JComponent.isOpaque()` to always return a `false` value.
  `protected void`
  `paintComponent(Graphics g)`
  Overrides the `JComponent.paintComponent(Graphics)` method to paint the content of the JavaFX scene attached to this `JFXpanel`.
  `protected void`
  `processComponentEvent(ComponentEvent e)`
  Overrides the `Component.processComponentEvent(ComponentEvent)` method to dispatch `ComponentEvent.COMPONENT_RESIZED` events to the JavaFX scene attached to this `JFXPanel`.
  `protected void`
  `processFocusEvent(FocusEvent e)`
  Overrides the `Component.processFocusEvent(FocusEvent)` method to dispatch focus events to the JavaFX scene attached to this `JFXPanel`.
  `protected void`
  `processHierarchyBoundsEvent(HierarchyEvent e)`
  Overrides the `Component.processHierarchyBoundsEvent(HierarchyEvent)` method to process `HierarchyEvent.ANCESTOR_MOVED` events and update the JavaFX scene location to match the `JFXPanel` location on the screen.
  `protected void`
  `processKeyEvent(KeyEvent e)`
  Overrides the `Component.processKeyEvent(KeyEvent)` method to dispatch the key event to the JavaFX scene attached to this `JFXPanel`.
  `protected void`
  `processMouseEvent(MouseEvent e)`
  Overrides the `Component.processMouseEvent(MouseEvent)` method to dispatch the mouse event to the JavaFX scene attached to this `JFXPanel`.
  `protected void`
  `processMouseMotionEvent(MouseEvent e)`
  Overrides the `Component.processMouseMotionEvent(MouseEvent)` method to dispatch the mouse motion event to the JavaFX scene attached to this `JFXPanel`.
  `protected void`
  `processMouseWheelEvent(MouseWheelEvent e)`
  Overrides the `Component.processMouseWheelEvent(MouseWheelEvent)` method to dispatch the mouse wheel event to the JavaFX scene attached to this `JFXPanel`.
  `void`
  `removeNotify()`
  Notifies this component that it no longer has a parent component.
  `final void`
  `setOpaque(boolean opaque)`
  `JFXPanel`'s opacity is controlled by the JavaFX content which is displayed in this component, so this method overrides `JComponent.setOpaque(boolean)` to only accept a `false` value.
  `void`
  `setScene(Scene newScene)`
  Attaches a `Scene` object to display in this `JFXPanel`.

  ### Methods declared in class JComponent

  `addAncestorListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getUI, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintImmediately, paintImmediately, paramString, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update, updateUI`

  ### Methods declared in class Container

  `add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTree`

  ### Methods declared in class Component

  `action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getAccessibleContext, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processHierarchyEvent, processInputMethodEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setMixingCutoutShape, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle`

  ### Methods declared in class Object

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

- ## Constructor Details

  - ### JFXPanel

    public JFXPanel()
    Creates a new `JFXPanel` object.

    Implementation note: when the first `JFXPanel` object is created, it implicitly initializes the JavaFX runtime. This is the preferred way to initialize JavaFX in Swing.

- ## Method Details

  - ### getScene

    public Scene getScene()
    Returns the JavaFX scene attached to this `JFXPanel`.
    Returns:
      the `Scene` attached to this `JFXPanel`

  - ### setScene

    public void setScene(Scene newScene)
    Attaches a `Scene` object to display in this `JFXPanel`. This method can be called either on the event dispatch thread or the JavaFX application thread.
    Parameters:
      `newScene` - a scene to display in this `JFXpanel`
    See Also:
      - `EventQueue.isDispatchThread()`
      - `Platform.isFxApplicationThread()`

  - ### setOpaque

    public final void setOpaque(boolean opaque)
    `JFXPanel`'s opacity is controlled by the JavaFX content which is displayed in this component, so this method overrides `JComponent.setOpaque(boolean)` to only accept a `false` value. If this method is called with a `true` value, no action is performed.
    Overrides:
      `setOpaque` in class `JComponent`
    Parameters:
      `opaque` - must be `false`

  - ### isOpaque

    public final boolean isOpaque()
    `JFXPanel`'s opacity is controlled by the JavaFX content which is displayed in this component, so this method overrides `JComponent.isOpaque()` to always return a `false` value.
    Overrides:
      `isOpaque` in class `JComponent`
    Returns:
      a `false` value

  - ### processMouseEvent

    protected void processMouseEvent(MouseEvent e)
    Overrides the `Component.processMouseEvent(MouseEvent)` method to dispatch the mouse event to the JavaFX scene attached to this `JFXPanel`.
    Overrides:
      `processMouseEvent` in class `JComponent`
    Parameters:
      `e` - the mouse event to dispatch to the JavaFX scene

  - ### processMouseMotionEvent

    protected void processMouseMotionEvent(MouseEvent e)
    Overrides the `Component.processMouseMotionEvent(MouseEvent)` method to dispatch the mouse motion event to the JavaFX scene attached to this `JFXPanel`.
    Overrides:
      `processMouseMotionEvent` in class `JComponent`
    Parameters:
      `e` - the mouse motion event to dispatch to the JavaFX scene

  - ### processMouseWheelEvent

    protected void processMouseWheelEvent(MouseWheelEvent e)
    Overrides the `Component.processMouseWheelEvent(MouseWheelEvent)` method to dispatch the mouse wheel event to the JavaFX scene attached to this `JFXPanel`.
    Overrides:
      `processMouseWheelEvent` in class `Component`
    Parameters:
      `e` - the mouse wheel event to dispatch to the JavaFX scene

  - ### processKeyEvent

    protected void processKeyEvent(KeyEvent e)
    Overrides the `Component.processKeyEvent(KeyEvent)` method to dispatch the key event to the JavaFX scene attached to this `JFXPanel`.
    Overrides:
      `processKeyEvent` in class `JComponent`
    Parameters:
      `e` - the key event to dispatch to the JavaFX scene

  - ### processComponentEvent

    protected void processComponentEvent(ComponentEvent e)
    Overrides the `Component.processComponentEvent(ComponentEvent)` method to dispatch `ComponentEvent.COMPONENT_RESIZED` events to the JavaFX scene attached to this `JFXPanel`. The JavaFX scene object is then resized to match the `JFXPanel` size.
    Overrides:
      `processComponentEvent` in class `Component`
    Parameters:
      `e` - the component event to dispatch to the JavaFX scene

  - ### processHierarchyBoundsEvent

    protected void processHierarchyBoundsEvent(HierarchyEvent e)
    Overrides the `Component.processHierarchyBoundsEvent(HierarchyEvent)` method to process `HierarchyEvent.ANCESTOR_MOVED` events and update the JavaFX scene location to match the `JFXPanel` location on the screen.
    Overrides:
      `processHierarchyBoundsEvent` in class `Component`
    Parameters:
      `e` - the hierarchy bounds event to process

  - ### processFocusEvent

    protected void processFocusEvent(FocusEvent e)
    Overrides the `Component.processFocusEvent(FocusEvent)` method to dispatch focus events to the JavaFX scene attached to this `JFXPanel`.
    Overrides:
      `processFocusEvent` in class `Component`
    Parameters:
      `e` - the focus event to dispatch to the JavaFX scene

  - ### paintComponent

    protected void paintComponent(Graphics g)
    Overrides the `JComponent.paintComponent(Graphics)` method to paint the content of the JavaFX scene attached to this `JFXpanel`.
    Overrides:
      `paintComponent` in class `JComponent`
    Parameters:
      `g` - the Graphics context in which to paint
    See Also:
      - `isOpaque()`

  - ### getPreferredSize

    public Dimension getPreferredSize()
    Returns the preferred size of this `JFXPanel`, either previously set with `JComponent.setPreferredSize(Dimension)` or based on the content of the JavaFX scene attached to this `JFXPanel`.
    Overrides:
      `getPreferredSize` in class `JComponent`
    Returns:
      prefSize this `JFXPanel` preferred size

  - ### addNotify

    public void addNotify()
    Notifies this component that it now has a parent component. When this method is invoked, the chain of parent components is set up with KeyboardAction event listeners.
    Overrides:
      `addNotify` in class `JComponent`

  - ### removeNotify

    public void removeNotify()
    Notifies this component that it no longer has a parent component. When this method is invoked, any KeyboardActions set up in the the chain of parent components are removed.
    Overrides:
      `removeNotify` in class `JComponent`