OpenJDK 27 · sun.awt.SunToolkit · APIdia, the JavaDoc alternative

Modifier and Type	Class and Description
public static class	SunToolkit.IllegalThreadException
pack-priv static class	SunToolkit.ModalityListenerList

Modifier and Type	Field and Description
private static WeakHashMap<Window, Long>	activationMap
private static final ReentrantLock	AWT_LOCK The AWT lock is typically only used on Unix platforms to synchronize access to Xlib, OpenGL, etc. However, these methods are implemented in SunToolkit so that they can be called from shared code (e.g. from the OGL pipeline) or from the X11 pipeline regardless of whether XToolkit is currently in use.
private static final Condition	AWT_LOCK_COND
private static boolean	checkedSystemAAFontSettings
public static volatile EventQueue	currentEventQueue
private static Dialog.ModalExclusionType	DEFAULT_MODAL_EXCLUSION_TYPE
public static final int	DEFAULT_WAIT_TIME
private static RenderingHints	desktopFontHints
public static final String	DESKTOPFONTHINTS
pack-priv static final SoftCache	fileImgCache References Deprecated `SoftCache` is deprecated or references (maybe indirectly) at least one deprecated element.
public static final int	GRAB_EVENT_MASK Special mask for the UngrabEvent events, in addition to the public masks defined in AWTEvent.
private static boolean	lastExtraCondition
public static final int	MAX_BUTTONS_SUPPORTED
private static final int	MAX_ITERS
private static final int	MIN_ITERS
private static final int	MINIMAL_DELAY
private SunToolkit.ModalityListenerList	modalityListeners
protected static int	numberOfButtons Number of buttons.
private static volatile PostEventQueue	postEventQueue
private static Locale	startupLocale
private static Boolean	sunAwtDisableMixing
private static boolean	touchKeyboardAutoShowIsEnabled
pack-priv static final SoftCache	urlImgCache References Deprecated `SoftCache` is deprecated or references (maybe indirectly) at least one deprecated element.
private static boolean	useSystemAAFontSettings
private final Object	waitLock

Access	Constructor and Description
public	SunToolkit()

Method Summary

Modifier and Type	Method and Description
public void	addModalityListener(ModalityListener listener)
public static final void	awtLock()
public static final void	awtLockNotify()
public static final void	awtLockNotifyAll()
public static final void	awtLockWait()
public static final void	awtLockWait(long timeout)
public static final boolean	awtTryLock()
public static final void	awtUnlock()
public boolean	canPopupOverlapTaskBar() Returns whether popup is allowed to be shown above the task bar.
public static void	checkAndSetPolicy(Container cont)
public int	checkImage(Image img, int w, int h, ImageObserver o) Implements abstract java.awt.Toolkit.checkImage. Indicates the construction status of a specified image that is being prepared for display.
private int	checkResolutionVariant(Image img, int w, int h, ImageObserver o)
public static native void	closeSplashScreen() Locates the splash screen library in a platform dependent way and closes the splash screen.
public static synchronized void	consumeNextKeyTyped(KeyEvent keyEvent)
public Image	createImage(String filename) Implements abstract java.awt.Toolkit.createImage. Returns an image which gets pixel data from the specified file.
public Image	createImage(URL url) Implements abstract java.awt.Toolkit.createImage. Returns an image which gets pixel data from the specified URL.
public Image	createImage(byte[] data, int offset, int length) Implements abstract java.awt.Toolkit.createImage. Creates an image which decodes the image stored in the specified byte array, and at the specified offset and length.
public Image	createImage(ImageProducer producer) Implements abstract java.awt.Toolkit.createImage. Creates an image with the specified image producer.
public static Image	createImageWithResolutionVariant(Image image, Image resolutionVariant)
public Window	createInputMethodWindow(String title, InputContext context) Implements sun.awt.InputMethodSupport.createInputMethodWindow. Returns a new input method window, with behavior as specified in `java.awt.im.spi.InputMethodContext#createInputMethodWindow`.
public abstract FramePeer	createLightweightFrame(LightweightFrame target)
public abstract SystemTrayPeer	createSystemTray(SystemTray target)
public abstract TrayIconPeer	createTrayIcon(TrayIcon target)
public void	disableBackgroundErase(Canvas canvas) Disables erasing of background on the canvas before painting if this is supported by the current toolkit.
public void	disableBackgroundErase(Component component) Disables the native erasing of the background on the given component before painting if this is supported by the current toolkit.
private void	disableBackgroundEraseImpl(Component component)
public void	dismissPopupOnFocusLostIfNeeded(Window invoker)
public void	dismissPopupOnFocusLostIfNeededCleanUp(Window invoker)
protected static void	dumpPeers(final PlatformLogger aLog)
public boolean	enableInputMethodsForTextComponent() Implements sun.awt.InputMethodSupport.enableInputMethodsForTextComponent. Returns whether enableInputMethods should be set to true for peered TextComponent instances on this platform.
public static void	executeOnEDTAndWait(Object target, Runnable runnable)
public static void	executeOnEventHandlerThread(Object target, Runnable runnable)
public static void	executeOnEventHandlerThread(Object target, Runnable runnable, final long when)
public static void	executeOnEventHandlerThread(PeerEvent peerEvent)
private void	fireDesktopFontPropertyChanges()
public static void	flushPendingEvents()
public ColorModel	getColorModel() Implements abstract java.awt.Toolkit.getColorModel. Determines the color model of this toolkit's screen.
public static Window	Returns: Window ancestor of the component or component by itself if it is Window; null, if component is not a part of window hierarchy getContainingWindow(Component comp) Returns the `Window` ancestor of the component `comp`.
public Locale	getDefaultKeyboardLocale() Implements sun.awt.InputMethodSupport.getDefaultKeyboardLocale. Returns the default keyboard locale of the underlying operating system
public String	getDesktop()
protected RenderingHints	getDesktopAAHints()
private static RenderingHints	getDesktopAAHintsByName(String hintname)
public static RenderingHints	getDesktopFontHints()
public int	getFocusAcceleratorKeyMask() Returns key modifiers used by Swing to set up a focus accelerator key stroke.
public String[]	getFontList() Implements abstract java.awt.Toolkit.getFontList. Returns the names of the available fonts in this toolkit.
public FontMetrics	getFontMetrics(Font font) Implements abstract java.awt.Toolkit.getFontMetrics. Gets the screen device metrics for rendering of the font.
public static Component	getHeavyweightComponent(Component c) Gives native peers the ability to query the closest HW component.
public Image	getImage(String filename) Implements abstract java.awt.Toolkit.getImage. Returns an image which gets pixel data from the specified file, whose format can be either GIF, JPEG or PNG.
public Image	getImage(URL url) Implements abstract java.awt.Toolkit.getImage. Returns an image which gets pixel data from the specified URL.
pack-priv static Image	getImageFromHash(Toolkit tk, URL url)
pack-priv static Image	getImageFromHash(Toolkit tk, String filename)
protected Image	getImageWithResolutionVariant(String fileName, String resolutionVariantName)
protected Image	getImageWithResolutionVariant(URL url, URL resolutionVariantURL)
public abstract KeyboardFocusManagerPeer	getKeyboardFocusManagerPeer() Redeclares sun.awt.KeyboardFocusManagerPeerProvider.getKeyboardFocusManagerPeer. Gets a singleton KeyboardFocusManagerPeer instance.
protected static LightweightFrame	getLightweightFrame(Component c)
public static Container	getNativeContainer(Component c) Hides java.awt.Toolkit.getNativeContainer. Give native peers the ability to query the native container given a native component (eg the direct parent may be lightweight).
public int	getNumberOfButtons() Descendants of the SunToolkit should override and put their own logic here.
private static ToolkitImage	getResolutionVariant(Image image)
private static int	getRVSize(int size)
public static DataBufferInt	getScaledIconData(List<Image> imageList, int width, int height)
public static BufferedImage	getScaledIconImage(List<Image> imageList, int width, int height) Scans `imageList` for best-looking image of specified dimensions.
public Dimension	getScreenSize() Implements abstract java.awt.Toolkit.getScreenSize. Gets the size of the screen.
public static Locale	getStartupLocale() Returns the locale in which the runtime was started.
public static synchronized boolean	getSunAwtDisableMixing() Returns the value of "sun.awt.disableMixing" property.
public static boolean	getSunAwtErasebackgroundonresize() Returns the value of "sun.awt.erasebackgroundonresize" property.
public static boolean	getSunAwtNoerasebackground() Returns the value of "sun.awt.noerasebackground" property.
protected EventQueue	getSystemEventQueueImpl() Implements abstract java.awt.Toolkit.getSystemEventQueueImpl. A method used by toolkit subclasses to get the `EventQueue`.
public static EventQueue	getSystemEventQueueImplPP()
public synchronized long	getWindowDeactivationTime(Window w)
public abstract void	grab(Window w) Grabs the mouse input for the given window.
protected static boolean	imageCached(String fileName)
protected static boolean	imageCached(URL url)
protected static boolean	imageExists(String filename)
protected static boolean	imageExists(URL url)
private static synchronized void	initEQ() Creates and initializes EventQueue instance.
private static void	initStatic() Hides java.awt.Toolkit.initStatic.
public static void	invokeLater(Runnable dispatcher)
public static final boolean	isAWTLockHeldByCurrentThread()
public static boolean	Returns: `true` if the passed component is not null and has a containing toplevel window which is opaque (so per-pixel translucency is not enabled), `false` otherwise isContainingTopLevelOpaque(Component a Component which toplevel's to check c) Returns whether or not a containing top level window for the passed component is `PERPIXEL_TRANSLUCENT`.
public static boolean	Returns: `true` if the passed component is not null and has a containing toplevel window which has opacity less than 1.0f (which means that it is translucent), `false` otherwise isContainingTopLevelTranslucent(Component a Component which toplevel's to check c) Returns whether or not a containing top level window for the passed component is `TRANSLUCENT`.
public abstract boolean	isDesktopSupported()
private boolean	isEQEmpty()
public static boolean	Returns: true, if this object implements/extends the given interface/class, false, otherwise, or if obj or type is null isInstanceOf(Object Object to be checked obj, String The name of the interface/class. Must be fully-qualified interface/class name. type) Checks that the given object implements/extends the given interface/class.
private static boolean	isInstanceOf(Class<?> cls, String type)
public static boolean	isLightweightOrUnknown(Component comp)
public static boolean	isModalExcluded(Window window)
public static boolean	Returns: true if modal exclusion is supported by the toolkit, false otherwise isModalExcludedSupported() Returns whether the modal exclusion API is supported by the current toolkit.
protected boolean	isModalExcludedSupportedImpl()
public boolean	isModalExclusionTypeSupported(Dialog.ModalExclusionType exclusionType) Implements abstract java.awt.Toolkit.isModalExclusionTypeSupported. Overridden in XToolkit and WToolkit
public boolean	isModalityTypeSupported(Dialog.ModalityType modalityType) Implements abstract java.awt.Toolkit.isModalityTypeSupported. Overridden in XToolkit and WToolkit
public boolean	isNativeGTKAvailable() Returns true if the native GTK libraries are available.
public boolean	isPrintableCharacterModifiersMask(int mods) Tests whether specified key modifiers mask can be used to enter a printable character.
public boolean	Returns: true if running on Wayland, false otherwise isRunningOnWayland() Checks if the system is running Linux with the Wayland server.
public boolean	isSwingBackbufferTranslucencySupported() Returns true if swing backbuffer should be translucent.
public static boolean	isSystemGenerated(AWTEvent e)
public abstract boolean	isTaskbarSupported()
public static boolean	isTouchKeyboardAutoShowEnabled()
public boolean	isTranslucencyCapable(GraphicsConfiguration gc)
public abstract boolean	isTraySupported()
public boolean	isWindowOpacitySupported()
public boolean	isWindowShapingSupported()
public boolean	isWindowTranslucencySupported()
protected final boolean	isXEmbedServerRequested() Returns whether the XEmbed server feature is requested by developer.
public static boolean	Returns: `true`, if XEmbed is needed, `false` otherwise needsXEmbed() Returns whether default toolkit needs the support of the xembed from embedding host(if any).
protected boolean	Returns: `true`, if XEmbed is needed, `false` otherwise needsXEmbedImpl() Returns whether this toolkit needs the support of the xembed from embedding host(if any).
public boolean	needUpdateWindow() Returns whether the native system requires using the peer.updateWindow() method to update the contents of a non-opaque window, or if usual painting procedures are sufficient.
pack-priv final void	notifyModalityChange(int id, Dialog source)
public void	notifyModalityPopped(Dialog dialog)
public void	notifyModalityPushed(Dialog dialog)
public static void	postEvent(AWTEvent event)
public static void	postPriorityEvent(final AWTEvent e)
public boolean	prepareImage(Image img, int w, int h, ImageObserver o) Implements abstract java.awt.Toolkit.prepareImage. Prepares an image for rendering.
private boolean	prepareResolutionVariant(Image img, int w, int h, ImageObserver o)
public void	realSync() Parameterless version of `realSync(long)` which uses the default timeout of `DEFAULT_WAIT_TIME`.
public void	realSync(final long the maximum time to wait in milliseconds, negative means "forever". timeout) Forces toolkit to synchronize with the native windowing sub-system, flushing all pending work and waiting for all the events to be processed.
public void	removeModalityListener(ModalityListener listener)
public static void	setAAFontSettingsCondition(boolean extraCondition)
public static void	setLWRequestStatus(Window the window for which the lightweight focus request status should be set changed, boolean the value of lightweight focus request status status) Sets the synchronous status of focus requests on lightweight components in the specified window to the specified value.
public static void	setModalExcluded(Window window)
public static void	setSystemGenerated(AWTEvent e)
public synchronized void	setWindowDeactivationTime(Window w, long time)
public void	showOrHideTouchKeyboard(Component comp, AWTEvent e)
protected abstract boolean	syncNativeQueue(long timeout) Platform toolkits need to implement this method to perform the sync of the native queue.
protected static void	targetCreatedPeer(Object target, Object peer)
protected static void	targetDisposedPeer(Object target, Object peer)
protected static Object	targetToPeer(Object target)
protected long	timeout(long end)
public abstract void	ungrab(Window w) Forces ungrab.
public void	updateScreenMenuBarUI()
public boolean	useBufferPerWindow()
private static boolean	useSystemAAFontSettings()
private final boolean	waitForIdle(final long end) Waits for the Java event queue to empty.
pack-priv static void	wakeupEventQueue(EventQueue q, boolean isShutdown)

public abstract Class SunToolkit

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