java.awt.Toolkit Maven / Gradle / Ivy
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This work corresponds to the API signatures of JSR 217: Personal Basis
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package java.awt;
import java.awt.event.*;
// import java.awt.peer.*;
import java.awt.*;
import java.util.MissingResourceException;
import java.util.Properties;
import java.util.ResourceBundle;
import java.util.StringTokenizer;
import java.awt.im.InputMethodHighlight;
import java.awt.image.ImageObserver;
import java.awt.image.ImageProducer;
import java.awt.image.ColorModel;
// import java.awt.datatransfer.Clipboard;
// import java.awt.dnd.DnDConstants;
// import java.awt.dnd.DragSource;
// import java.awt.dnd.DragGestureRecognizer;
// import java.awt.dnd.DragGestureEvent;
// import java.awt.dnd.DragGestureListener;
// import java.awt.dnd.InvalidDnDOperationException;
// import java.awt.dnd.peer.DragSourceContextPeer;
import java.net.URL;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.EventListener;
import java.util.Map;
import java.util.HashMap;
import java.util.WeakHashMap;
import java.util.List;
import java.util.ArrayList;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
// PBP/PP
/**
* This class is the abstract superclass of all actual
* implementations of the Abstract Window Toolkit. Subclasses of
* Toolkit are used to bind the various components
* to particular native toolkit implementations.
*
* Most applications should not call any of the methods in this
* class directly. Some methods defined by
* Toolkit query the native operating system directly.
*
* @version 1.189, 01/23/03
* @author Sami Shaio
* @author Arthur van Hoff
* @author Fred Ecks
* @since JDK1.0
*/
public abstract class Toolkit
{
// protected final Map desktopProperties = null;
// protected final PropertyChangeSupport desktopPropsSupport = null;
public Toolkit() { }
// /**
// * Creates this toolkit's implementation of Button using
// * the specified peer interface.
// * @param target the button to be implemented.
// * @return this toolkit's implementation of Button.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.Button
// * @see java.awt.peer.ButtonPeer
// */
// protected abstract ButtonPeer createButton(java.awt.Button target)
// throws java.awt.HeadlessException;
// /**
// * Creates this toolkit's implementation of TextField using
// * the specified peer interface.
// * @param target the text field to be implemented.
// * @return this toolkit's implementation of TextField.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.TextField
// * @see java.awt.peer.TextFieldPeer
// */
// protected abstract TextFieldPeer createTextField(java.awt.TextField target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of Label using
// * the specified peer interface.
// * @param target the label to be implemented.
// * @return this toolkit's implementation of Label.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.Label
// * @see java.awt.peer.LabelPeer
// */
// protected abstract LabelPeer createLabel(java.awt.Label target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of List using
// * the specified peer interface.
// * @param target the list to be implemented.
// * @return this toolkit's implementation of List.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.List
// * @see java.awt.peer.ListPeer
// */
// protected abstract ListPeer createList(java.awt.List target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of Checkbox using
// * the specified peer interface.
// * @param target the check box to be implemented.
// * @return this toolkit's implementation of Checkbox.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.Checkbox
// * @see java.awt.peer.CheckboxPeer
// */
// protected abstract CheckboxPeer createCheckbox(java.awt.Checkbox target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of Scrollbar using
// * the specified peer interface.
// * @param target the scroll bar to be implemented.
// * @return this toolkit's implementation of Scrollbar.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.Scrollbar
// * @see java.awt.peer.ScrollbarPeer
// */
// protected abstract ScrollbarPeer createScrollbar(java.awt.Scrollbar target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of ScrollPane using
// * the specified peer interface.
// * @param target the scroll pane to be implemented.
// * @return this toolkit's implementation of ScrollPane.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.ScrollPane
// * @see java.awt.peer.ScrollPanePeer
// * @since JDK1.1
// */
// protected abstract ScrollPanePeer createScrollPane(java.awt.ScrollPane
// target) throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of TextArea using
// * the specified peer interface.
// * @param target the text area to be implemented.
// * @return this toolkit's implementation of TextArea.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.TextArea
// * @see java.awt.peer.TextAreaPeer
// */
// protected abstract TextAreaPeer createTextArea(java.awt.TextArea target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of Choice using
// * the specified peer interface.
// * @param target the choice to be implemented.
// * @return this toolkit's implementation of Choice.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.Choice
// * @see java.awt.peer.ChoicePeer
// */
// protected abstract ChoicePeer createChoice(java.awt.Choice target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of Frame using
// * the specified peer interface.
// * @param target the frame to be implemented.
// * @return this toolkit's implementation of Frame.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.Frame
// * @see java.awt.peer.FramePeer
// */
// protected abstract FramePeer createFrame(java.awt.Frame target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of Canvas using
// * the specified peer interface.
// * @param target the canvas to be implemented.
// * @return this toolkit's implementation of Canvas.
// * @see java.awt.Canvas
// * @see java.awt.peer.CanvasPeer
// */
// protected abstract CanvasPeer createCanvas(java.awt.Canvas target);
//
// /**
// * Creates this toolkit's implementation of Panel using
// * the specified peer interface.
// * @param target the panel to be implemented.
// * @return this toolkit's implementation of Panel.
// * @see java.awt.Panel
// * @see java.awt.peer.PanelPeer
// */
// protected abstract PanelPeer createPanel(java.awt.Panel target);
//
// /**
// * Creates this toolkit's implementation of Window using
// * the specified peer interface.
// * @param target the window to be implemented.
// * @return this toolkit's implementation of Window.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.Window
// * @see java.awt.peer.WindowPeer
// */
// protected abstract WindowPeer createWindow(java.awt.Window target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of Dialog using
// * the specified peer interface.
// * @param target the dialog to be implemented.
// * @return this toolkit's implementation of Dialog.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.Dialog
// * @see java.awt.peer.DialogPeer
// */
// protected abstract DialogPeer createDialog(java.awt.Dialog target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of MenuBar using
// * the specified peer interface.
// * @param target the menu bar to be implemented.
// * @return this toolkit's implementation of MenuBar.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.MenuBar
// * @see java.awt.peer.MenuBarPeer
// */
// protected abstract MenuBarPeer createMenuBar(java.awt.MenuBar target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of Menu using
// * the specified peer interface.
// * @param target the menu to be implemented.
// * @return this toolkit's implementation of Menu.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.Menu
// * @see java.awt.peer.MenuPeer
// */
// protected abstract MenuPeer createMenu(java.awt.Menu target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of PopupMenu using
// * the specified peer interface.
// * @param target the popup menu to be implemented.
// * @return this toolkit's implementation of PopupMenu.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.PopupMenu
// * @see java.awt.peer.PopupMenuPeer
// * @since JDK1.1
// */
// protected abstract PopupMenuPeer createPopupMenu(java.awt.PopupMenu target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of MenuItem using
// * the specified peer interface.
// * @param target the menu item to be implemented.
// * @return this toolkit's implementation of MenuItem.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.MenuItem
// * @see java.awt.peer.MenuItemPeer
// */
// protected abstract MenuItemPeer createMenuItem(java.awt.MenuItem target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of FileDialog using
// * the specified peer interface.
// * @param target the file dialog to be implemented.
// * @return this toolkit's implementation of FileDialog.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.FileDialog
// * @see java.awt.peer.FileDialogPeer
// */
// protected abstract FileDialogPeer createFileDialog(java.awt.FileDialog
// target) throws java.awt.HeadlessException;
//
// /**
// * Creates this toolkit's implementation of CheckboxMenuItem using
// * the specified peer interface.
// * @param target the checkbox menu item to be implemented.
// * @return this toolkit's implementation of CheckboxMenuItem.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.CheckboxMenuItem
// * @see java.awt.peer.CheckboxMenuItemPeer
// */
// protected abstract CheckboxMenuItemPeer
// createCheckboxMenuItem(java.awt.CheckboxMenuItem target)
// throws java.awt.HeadlessException;
//
// /**
// * Creates a peer for a component or container. This peer is windowless
// * and allows the Component and Container classes to be extended directly
// * to create windowless components that are defined entirely in java.
// *
// * @param target The Component to be created.
// */
// protected LightweightPeer createComponent(java.awt.Component target) { }
//
// /**
// * Creates this toolkit's implementation of Font using
// * the specified peer interface.
// * @param name the font to be implemented
// * @param style the style of the font, such as PLAIN,
// * BOLD, ITALIC, or a combination
// * @return this toolkit's implementation of Font
// * @see java.awt.Font
// * @see java.awt.peer.FontPeer
// * @see java.awt.GraphicsEnvironment#getAllFonts
// * @deprecated see java.awt.GraphicsEnvironment#getAllFonts
// */
// protected abstract FontPeer getFontPeer(String name, int style);
// PBP/PP
// [6237275]
/**
* Fills in the integer array that is supplied as an argument
* with the current system color values.
*
* Note: The order of color values stored in the
* systemColors array is implementation-dependent.
*
* @param systemColors an integer array.
* @exception HeadlessException if GraphicsEnvironment.isHeadless()
* returns true
* @see java.awt.GraphicsEnvironment#isHeadless
* @since JDK1.1
*/
protected void loadSystemColors(int[] systemColors)
throws java.awt.HeadlessException
{ }
// /**
// * Controls whether the layout of Containers is validated dynamically
// * during resizing, or statically, after resizing is complete.
// * Note that this feature is not supported on all platforms, and
// * conversely, that this feature cannot be turned off on some platforms.
// * On platforms where dynamic layout during resize is not supported
// * (or is always supported), setting this property has no effect.
// * Note that this feature can be set or unset as a property of the
// * operating system or window manager on some platforms. On such
// * platforms, the dynamic resize property must be set at the operating
// * system or window manager level before this method can take effect.
// * This method does not change the underlying operating system or
// * window manager support or settings. The OS/WM support can be
// * queried using getDesktopProperty("awt.dynamicLayoutSupported").
// *
// * @param dynamic If true, Containers should re-layout their
// * components as the Container is being resized. If false,
// * the layout will be validated after resizing is finished.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see #isDynamicLayoutSet()
// * @see #isDynamicLayoutActive()
// * @see #getDesktopProperty(String propertyName)
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @since 1.4
// */
// public void setDynamicLayout(boolean dynamic)
// throws java.awt.HeadlessException
// { }
// /**
// * Returns whether the layout of Containers is validated dynamically
// * during resizing, or statically, after resizing is complete.
// * Note: this method returns the value that was set programmatically;
// * it does not reflect support at the level of the operating system
// * or window manager for dynamic layout on resizing, or the current
// * operating system or window manager settings. The OS/WM support can
// * be queried using getDesktopProperty("awt.dynamicLayoutSupported").
// *
// * @return true if validation of Containers is done dynamically,
// * false if validation is done after resizing is finished.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see #setDynamicLayout(boolean dynamic)
// * @see #isDynamicLayoutActive()
// * @see #getDesktopProperty(String propertyName)
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @since 1.4
// */
// protected boolean isDynamicLayoutSet() throws java.awt.HeadlessException { }
// /**
// * Returns whether dynamic layout of Containers on resize is
// * currently active (both set programmatically, and supported
// * by the underlying operating system and/or window manager).
// * The OS/WM support can be queried using
// * getDesktopProperty("awt.dynamicLayoutSupported").
// *
// * @return true if dynamic layout of Containers on resize is
// * currently active, false otherwise.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see #setDynamicLayout(boolean dynamic)
// * @see #isDynamicLayoutSet()
// * @see #getDesktopProperty(String propertyName)
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @since 1.4
// */
// public boolean isDynamicLayoutActive() throws java.awt.HeadlessException { }
// * @see java.awt.GraphicsDevice#getDisplayMode
// removed from below...
/**
* Gets the size of the screen. On systems with multiple displays, the
* primary display is used. Multi-screen aware display dimensions are
* available from GraphicsConfiguration and
* GraphicsDevice.
* @return the size of this toolkit's screen, in pixels.
* @exception HeadlessException if GraphicsEnvironment.isHeadless()
* returns true
* @see java.awt.GraphicsConfiguration#getBounds
* @see java.awt.GraphicsEnvironment#isHeadless
*/
public abstract java.awt.Dimension getScreenSize()
throws java.awt.HeadlessException;
/**
* Returns the screen resolution in dots-per-inch.
* @return this toolkit's screen resolution, in dots-per-inch.
* @exception HeadlessException if GraphicsEnvironment.isHeadless()
* returns true
* @see java.awt.GraphicsEnvironment#isHeadless
*/
public abstract int getScreenResolution() throws java.awt.HeadlessException;
/**
* Gets the insets of the screen.
* @param gc a GraphicsConfiguration
* @return the insets of this toolkit's screen, in pixels.
* @exception HeadlessException if GraphicsEnvironment.isHeadless()
* returns true
* @see java.awt.GraphicsEnvironment#isHeadless
* @since 1.4
*/
public java.awt.Insets getScreenInsets(java.awt.GraphicsConfiguration gc)
throws java.awt.HeadlessException
{
return null;
}
/**
* Determines the color model of this toolkit's screen.
*
* ColorModel is an abstract class that
* encapsulates the ability to translate between the
* pixel values of an image and its red, green, blue,
* and alpha components.
*
* This toolkit method is called by the
* getColorModel method
* of the Component class.
* @return the color model of this toolkit's screen.
* @exception HeadlessException if GraphicsEnvironment.isHeadless()
* returns true
* @see java.awt.GraphicsEnvironment#isHeadless
* @see java.awt.image.ColorModel
* @see java.awt.Component#getColorModel
*/
public abstract ColorModel getColorModel()
throws java.awt.HeadlessException;
/**
* Returns the names of the available fonts in this toolkit.
* For 1.1, the following font names are deprecated (the replacement
* name follows):
*
* - TimesRoman (use Serif)
*
- Helvetica (use SansSerif)
*
- Courier (use Monospaced)
*
* The ZapfDingbats fontname is also deprecated in 1.1 but the characters
* are defined in Unicode starting at 0x2700, and as of 1.1 Java supports
* those characters.
* @return the names of the available fonts in this toolkit.
* @deprecated see {@link java.awt.GraphicsEnvironment#getAvailableFontFamilyNames()}
* @see java.awt.GraphicsEnvironment#getAvailableFontFamilyNames()
*/
public abstract String[] getFontList();
// PBP/PP 6216201 (fixed deprecated text)
/**
* Gets the screen device metrics for rendering of the font.
* @param font a font
* @return the screen metrics of the specified font in this toolkit
* @deprecated Deprecated. This returns integer metrics for
* the default screen.
*
*
*
* @see java.awt.GraphicsEnvironment#getScreenDevices
*/
public abstract java.awt.FontMetrics getFontMetrics(java.awt.Font font);
/**
* Synchronizes this toolkit's graphics state. Some window systems
* may do buffering of graphics events.
*
* This method ensures that the display is up-to-date. It is useful
* for animation.
*/
public abstract void sync();
/**
* Gets the default toolkit.
*
* If there is a system property named "awt.toolkit",
* that property is treated as the name of a class that is a subclass
* of Toolkit.
*
* If the system property does not exist, then the default toolkit
* used is the class named "sun.awt.motif.MToolkit",
* which is a motif implementation of the Abstract Window Toolkit.
*
* Also loads additional classes into the VM, using the property
* 'assistive_technologies' specified in the Sun reference
* implementation by a line in the 'accessibility.properties'
* file. The form is "assistive_technologies=..." where
* the "..." is a comma-separated list of assistive technology
* classes to load. Each class is loaded in the order given
* and a single instance of each is created using
* Class.forName(class).newInstance(). This is done just after
* the AWT toolkit is created. All errors are handled via an
* AWTError exception.
* @return the default toolkit.
* @exception AWTError if a toolkit could not be found, or
* if one could not be accessed or instantiated.
*/
public static synchronized java.awt.Toolkit getDefaultToolkit() { return null; }
/**
* Returns an image which gets pixel data from the specified file,
* whose format can be either GIF, JPEG or PNG.
* The underlying toolkit attempts to resolve multiple requests
* with the same filename to the same returned Image.
* Since the mechanism required to facilitate this sharing of
* Image objects may continue to hold onto images that are no
* longer of use for an indefinite period of time, developers
* are encouraged to implement their own caching of images by
* using the createImage variant wherever available.
* @param filename the name of a file containing pixel data
* in a recognized file format.
* @return an image which gets its pixel data from
* the specified file.
*
*
*
* @throws SecurityException if a security manager exists and its
* checkRead method denies read access to the filename.
*
* @see #createImage(java.lang.String)
*
* @see SecurityManager#checkRead(java.lang.String)
*/
public abstract java.awt.Image getImage(String filename);
// PBP/PP [6262540]
// Fix for J2SE bug 6262530
/**
* Returns an image which gets pixel data from the specified URL.
* The pixel data referenced by the specified URL must be in one
* of the following formats: GIF, JPEG or PNG.
* The underlying toolkit attempts to resolve multiple requests
* with the same URL to the same returned Image.
* Since the mechanism required to facilitate this sharing of
* Image objects may continue to hold onto images that are no
* longer of use for an indefinite period of time, developers
* are encouraged to implement their own caching of images by
* using the createImage variant wherever available.
*
*
* This method will throw {@link SecurityException} if the
* caller does not have the permission obtained from
* url.openConnection.getPermission().
* For compatibility with pre-1.2 security managers, if the permission
* is a {@link java.io.FilePermission} or a
* {@link java.net.SocketPermission}, then the 1.1-style
* SecurityManager.checkXXX methods are called instead of
* {@link SecurityManager#checkPermission}.
*
*
*
* @throws SecurityException If the caller does not have permission to
* access this URL.
*
* @param url the URL to use in fetching the pixel data.
* @return an image which gets its pixel data from
* the specified URL.
* @see #createImage(java.net.URL)
*/
public abstract java.awt.Image getImage(URL url);
/**
* Returns an image which gets pixel data from the specified file.
* The returned Image is a new object which will not be shared
* with any other caller of this method or its getImage variant.
* @param filename the name of a file containing pixel data
* in a recognized file format.
* @return an image which gets its pixel data from
* the specified file.
*
*
* @throws SecurityException if a security manager exists and its
* checkRead method denies read access to the filename.
*
* @see #getImage(java.lang.String)
*
* @see SecurityManager#checkRead(java.lang.String)
*/
public abstract java.awt.Image createImage(String filename);
// PBP/PP [6262540]
// Fix for J2SE bug 6262530
/**
* Returns an image which gets pixel data from the specified URL.
* The returned Image is a new object which will not be shared
* with any other caller of this method or its getImage variant.
*
*
*
* This method will throw {@link SecurityException} if the
* caller does not have the permission obtained from
* url.openConnection.getPermission().
* For compatibility with pre-1.2 security managers, if the permission
* is a {@link java.io.FilePermission} or a
* {@link java.net.SocketPermission}, then the 1.1-style
* SecurityManager.checkXXX methods are called instead of
* {@link SecurityManager#checkPermission}.
*
*
*
* @throws SecurityException If the caller does not have permission to
* access this URL.
*
* @param url the URL to use in fetching the pixel data.
* @return an image which gets its pixel data from
* the specified URL.
* @see #getImage(java.net.URL)
*/
public abstract java.awt.Image createImage(URL url);
/**
* Prepares an image for rendering.
*
* If the values of the width and height arguments are both
* -1, this method prepares the image for rendering
* on the default screen; otherwise, this method prepares an image
* for rendering on the default screen at the specified width and height.
*
* The image data is downloaded asynchronously in another thread,
* and an appropriately scaled screen representation of the image is
* generated.
*
* This method is called by components prepareImage
* methods.
*
* Information on the flags returned by this method can be found
* with the definition of the ImageObserver interface.
*
* @param image the image for which to prepare a
* screen representation.
* @param width the width of the desired screen
* representation, or -1.
* @param height the height of the desired screen
* representation, or -1.
* @param observer the ImageObserver
* object to be notified as the
* image is being prepared.
* @return true if the image has already been
* fully prepared; false otherwise.
* @see java.awt.Component#prepareImage(java.awt.Image,
* java.awt.image.ImageObserver)
* @see java.awt.Component#prepareImage(java.awt.Image,
* int, int, java.awt.image.ImageObserver)
* @see java.awt.image.ImageObserver
*/
public abstract boolean prepareImage(java.awt.Image image, int width, int
height, ImageObserver observer);
/**
* Indicates the construction status of a specified image that is
* being prepared for display.
*
* If the values of the width and height arguments are both
* -1, this method returns the construction status of
* a screen representation of the specified image in this toolkit.
* Otherwise, this method returns the construction status of a
* scaled representation of the image at the specified width
* and height.
*
* This method does not cause the image to begin loading.
* An application must call prepareImage to force
* the loading of an image.
*
* This method is called by the component's checkImage
* methods.
*
* Information on the flags returned by this method can be found
* with the definition of the ImageObserver interface.
* @param image the image whose status is being checked.
* @param width the width of the scaled version whose status is
* being checked, or -1.
* @param height the height of the scaled version whose status
* is being checked, or -1.
* @param observer the ImageObserver object to be
* notified as the image is being prepared.
* @return the bitwise inclusive OR of the
* ImageObserver flags for the
* image data that is currently available.
* @see java.awt.Toolkit#prepareImage(java.awt.Image,
* int, int, java.awt.image.ImageObserver)
* @see java.awt.Component#checkImage(java.awt.Image,
* java.awt.image.ImageObserver)
* @see java.awt.Component#checkImage(java.awt.Image,
* int, int, java.awt.image.ImageObserver)
* @see java.awt.image.ImageObserver
*/
public abstract int checkImage(java.awt.Image image, int width, int height,
ImageObserver observer);
/**
* Creates an image with the specified image producer.
* @param producer the image producer to be used.
* @return an image with the specified image producer.
* @see java.awt.Image
* @see java.awt.image.ImageProducer
* @see java.awt.Component#createImage(java.awt.image.ImageProducer)
*/
public abstract java.awt.Image createImage(ImageProducer producer);
/**
* Creates an image which decodes the image stored in the specified
* byte array.
*
* The data must be in some image format, such as GIF or JPEG,
* that is supported by this toolkit.
* @param imagedata an array of bytes, representing
* image data in a supported image format.
* @return an image.
* @since JDK1.1
*/
public java.awt.Image createImage(byte[] imagedata) { return null; }
/**
* Creates an image which decodes the image stored in the specified
* byte array, and at the specified offset and length.
* The data must be in some image format, such as GIF or JPEG,
* that is supported by this toolkit.
* @param imagedata an array of bytes, representing
* image data in a supported image format.
* @param imageoffset the offset of the beginning
* of the data in the array.
* @param imagelength the length of the data in the array.
* @return an image.
* @since JDK1.1
*/
public abstract java.awt.Image createImage(byte[] imagedata, int
imageoffset, int imagelength);
// /**
// * Gets a PrintJob object which is the result of initiating
// * a print operation on the toolkit's platform.
// *
// * Each actual implementation of this method should first check if there
// * is a security manager installed. If there is, the method should call
// * the security manager's checkPrintJobAccess method to
// * ensure initiation of a print operation is allowed. If the default
// * implementation of checkPrintJobAccess is used (that is,
// * that method is not overriden), then this results in a call to the
// * security manager's checkPermission method with a
// * RuntimePermission("queuePrintJob") permission.
// *
// * @param frame the parent of the print dialog. May not be null.
// * @param jobtitle the title of the PrintJob. A null title is equivalent
// * to "".
// * @param props a Properties object containing zero or more properties.
// * Properties are not standardized and are not consistent across
// * implementations. Because of this, PrintJobs which require job
// * and page control should use the version of this function which
// * takes JobAttributes and PageAttributes objects. This object
// * may be updated to reflect the user's job choices on exit. May
// * be null.
// *
// * @return a PrintJob object, or null if the
// * user cancelled the print job.
// * @throws NullPointerException if frame is null. This exception is
// * always thrown when GraphicsEnvironment.isHeadless() returns
// * true.
// * @throws SecurityException if this thread is not allowed to initiate a
// * print job request
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.PrintJob
// * @see java.lang.RuntimePermission
// * @since JDK1.1
// */
// public abstract java.awt.PrintJob getPrintJob(java.awt.Frame frame, String
// jobtitle, Properties props);
// /**
// * Gets a PrintJob object which is the result of initiating
// * a print operation on the toolkit's platform.
// *
// * Each actual implementation of this method should first check if there
// * is a security manager installed. If there is, the method should call
// * the security manager's checkPrintJobAccess method to
// * ensure initiation of a print operation is allowed. If the default
// * implementation of checkPrintJobAccess is used (that is,
// * that method is not overriden), then this results in a call to the
// * security manager's checkPermission method with a
// * RuntimePermission("queuePrintJob") permission.
// *
// * @param frame the parent of the print dialog. May be null if and only
// * if jobAttributes is not null and jobAttributes.getDialog()
// * returns JobAttributes.DialogType.NONE or
// * JobAttributes.DialogType.COMMON.
// * @param jobtitle the title of the PrintJob. A null title is equivalent
// * to "".
// * @param jobAttributes a set of job attributes which will control the
// * PrintJob. The attributes will be updated to reflect the user's
// * choices as outlined in the JobAttributes documentation. May be
// * null.
// * @param pageAttributes a set of page attributes which will control the
// * PrintJob. The attributes will be applied to every page in the
// * job. The attributes will be updated to reflect the user's
// * choices as outlined in the PageAttributes documentation. May be
// * null.
// *
// * @return a PrintJob object, or null if the
// * user cancelled the print job.
// * @throws NullPointerException if frame is null and either jobAttributes
// * is null or jobAttributes.getDialog() returns
// * JobAttributes.DialogType.NATIVE.
// * @throws IllegalArgumentException if pageAttributes specifies differing
// * cross feed and feed resolutions. This exception is always
// * thrown when GraphicsEnvironment.isHeadless() returns true.
// * @throws SecurityException if this thread is not allowed to initiate a
// * print job request, or if jobAttributes specifies print to file,
// * and this thread is not allowed to access the file system
// * @see java.awt.PrintJob
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.lang.RuntimePermission
// * @see java.awt.JobAttributes
// * @see java.awt.PageAttributes
// * @since 1.3
// */
// public java.awt.PrintJob getPrintJob(java.awt.Frame frame, String jobtitle,
// java.awt.JobAttributes jobAttributes, java.awt.PageAttributes
// pageAttributes)
// { }
/**
* Emits an audio beep.
* @since JDK1.1
*/
public abstract void beep();
// /**
// * Gets the singleton instance of the system Clipboard which interfaces
// * with clipboard facilities provided by the native platform. This
// * clipboard enables data transfer between Java programs and native
// * applications which use native clipboard facilities.
// *
// * In addition to any and all formats specified in the flavormap.properties
// * file, or other file specified by the AWT.DnD.flavorMapFileURL
// * Toolkit property, text returned by the system Clipboard's
// * getTransferData() method is available in the following flavors:
// *
// * - DataFlavor.stringFlavor
// * - DataFlavor.plainTextFlavor (deprecated)
// *
// * As with java.awt.datatransfer.StringSelection, if the
// * requested flavor is DataFlavor.plainTextFlavor, or an
// * equivalent flavor, a Reader is returned. Note: The behavior of
// * the system Clipboard's getTransferData() method for
// * DataFlavor.plainTextFlavor, and equivalent DataFlavors, is
// * inconsistent with the definition of DataFlavor.plainTextFlavor
// * . Because of this, support for
// * DataFlavor.plainTextFlavor, and equivalent flavors, is
// * deprecated.
// *
// * Each actual implementation of this method should first check if there
// * is a security manager installed. If there is, the method should call
// * the security manager's checkSystemClipboardAccess method
// * to ensure it's ok to to access the system clipboard. If the default
// * implementation of checkSystemClipboardAccess is used (that
// * is, that method is not overriden), then this results in a call to the
// * security manager's checkPermission method with an
// * AWTPermission("accessClipboard") permission.
// *
// * @return the system Clipboard
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.datatransfer.Clipboard
// * @see java.awt.datatransfer.StringSelection
// * @see java.awt.datatransfer.DataFlavor#stringFlavor
// * @see java.awt.datatransfer.DataFlavor#plainTextFlavor
// * @see java.io.Reader
// * @see java.awt.AWTPermission
// * @since JDK1.1
// */
// public abstract Clipboard getSystemClipboard()
// throws java.awt.HeadlessException;
// /**
// * Gets the singleton instance of the system selection as a
// * Clipboard object. This allows an application to read and
// * modify the current, system-wide selection.
// *
// * An application is responsible for updating the system selection whenever
// * the user selects text, using either the mouse or the keyboard.
// * Typically, this is implemented by installing a
// * FocusListener on all Components which support
// * text selection, and, between FOCUS_GAINED and
// * FOCUS_LOST events delivered to that Component,
// * updating the system selection Clipboard when the selection
// * changes inside the Component. Properly updating the system
// * selection ensures that a Java application will interact correctly with
// * native applications and other Java applications running simultaneously
// * on the system. Note that java.awt.TextComponent and
// * javax.swing.text.JTextComponent already adhere to this
// * policy. When using these classes, and their subclasses, developers need
// * not write any additional code.
// *
// * Some platforms do not support a system selection Clipboard.
// * On those platforms, this method will return null. In such a
// * case, an application is absolved from its responsibility to update the
// * system selection Clipboard as described above.
// *
// * Each actual implementation of this method should first check if there
// * is a SecurityManager installed. If there is, the method
// * should call the SecurityManager's
// * checkSystemClipboardAccess method to ensure that client
// * code has access the system selection. If the default implementation of
// * checkSystemClipboardAccess is used (that is, if the method
// * is not overridden), then this results in a call to the
// * SecurityManager's checkPermission method with
// * an AWTPermission("accessClipboard") permission.
// *
// * @return the system selection as a Clipboard, or
// * null if the native platform does not support a
// * system selection Clipboard
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// *
// * @see java.awt.datatransfer.Clipboard
// * @see java.awt.event.FocusListener
// * @see java.awt.event.FocusEvent#FOCUS_GAINED
// * @see java.awt.event.FocusEvent#FOCUS_LOST
// * @see TextComponent
// * @see javax.swing.text.JTextComponent
// * @see AWTPermission
// * @see GraphicsEnvironment#isHeadless
// * @since 1.4
// */
// public Clipboard getSystemSelection() throws java.awt.HeadlessException { }
// /**
// * Determines which modifier key is the appropriate accelerator
// * key for menu shortcuts.
// *
// * Menu shortcuts, which are embodied in the
// * MenuShortcut class, are handled by the
// * MenuBar class.
// *
// * By default, this method returns Event.CTRL_MASK.
// * Toolkit implementations should override this method if the
// * Control key isn't the correct key for accelerators.
// * @return the modifier mask on the Event class
// * that is used for menu shortcuts on this toolkit.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @see java.awt.MenuBar
// * @see java.awt.MenuShortcut
// * @since JDK1.1
// */
// public int getMenuShortcutKeyMask() throws java.awt.HeadlessException { return 0; }
// /**
// * Returns whether the given locking key on the keyboard is currently in
// * its "on" state.
// * Valid key codes are
// * {@link java.awt.event.KeyEvent#VK_CAPS_LOCK VK_CAPS_LOCK},
// * {@link java.awt.event.KeyEvent#VK_NUM_LOCK VK_NUM_LOCK},
// * {@link java.awt.event.KeyEvent#VK_SCROLL_LOCK VK_SCROLL_LOCK}, and
// * {@link java.awt.event.KeyEvent#VK_KANA_LOCK VK_KANA_LOCK}.
// *
// * @exception java.lang.IllegalArgumentException if keyCode
// * is not one of the valid key codes
// * @exception java.lang.UnsupportedOperationException if the host system doesn't
// * allow getting the state of this key programmatically, or if the keyboard
// * doesn't have this key
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @since 1.3
// */
// public boolean getLockingKeyState(int keyCode)
// throws UnsupportedOperationException
// { }
// /**
// * Sets the state of the given locking key on the keyboard.
// * Valid key codes are
// * {@link java.awt.event.KeyEvent#VK_CAPS_LOCK VK_CAPS_LOCK},
// * {@link java.awt.event.KeyEvent#VK_NUM_LOCK VK_NUM_LOCK},
// * {@link java.awt.event.KeyEvent#VK_SCROLL_LOCK VK_SCROLL_LOCK}, and
// * {@link java.awt.event.KeyEvent#VK_KANA_LOCK VK_KANA_LOCK}.
// *
// * Depending on the platform, setting the state of a locking key may
// * involve event processing and therefore may not be immediately
// * observable through getLockingKeyState.
// *
// * @exception java.lang.IllegalArgumentException if keyCode
// * is not one of the valid key codes
// * @exception java.lang.UnsupportedOperationException if the host system doesn't
// * allow setting the state of this key programmatically, or if the keyboard
// * doesn't have this key
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @since 1.3
// */
// public void setLockingKeyState(int keyCode, boolean on)
// throws UnsupportedOperationException
// { }
// /**
// * Give native peers the ability to query the native container
// * given a native component (eg the direct parent may be lightweight).
// */
// protected static java.awt.Container getNativeContainer(java.awt.Component c)
// { }
// /**
// * Creates a new custom cursor object.
// * If the image to display is invalid, the cursor will be hidden (made
// * completely transparent), and the hotspot will be set to (0, 0).
// *
// *
Note that multi-frame images are invalid and may cause this
// * method to hang.
// *
// * @param cursor the image to display when the cursor is actived
// * @param hotSpot the X and Y of the large cursor's hot spot; the
// * hotSpot values must be less than the Dimension returned by
// * getBestCursorSize
// * @param name a localized description of the cursor, for Java Accessibility use
// * @exception IndexOutOfBoundsException if the hotSpot values are outside
// * the bounds of the cursor
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @since 1.2
// */
// public java.awt.Cursor createCustomCursor(java.awt.Image cursor,
// java.awt.Point hotSpot, String name)
// throws IndexOutOfBoundsException, java.awt.HeadlessException
// { }
// /**
// * Returns the supported cursor dimension which is closest to the desired
// * sizes. Systems which only support a single cursor size will return that
// * size regardless of the desired sizes. Systems which don't support custom
// * cursors will return a dimension of 0, 0.
// * Note: if an image is used whose dimensions don't match a supported size
// * (as returned by this method), the Toolkit implementation will attempt to
// * resize the image to a supported size.
// * Since converting low-resolution images is difficult,
// * no guarantees are made as to the quality of a cursor image which isn't a
// * supported size. It is therefore recommended that this method
// * be called and an appropriate image used so no image conversion is made.
// *
// * @param preferredWidth the preferred cursor width the component would like
// * to use.
// * @param preferredHeight the preferred cursor height the component would like
// * to use.
// * @return the closest matching supported cursor size, or a dimension of 0,0 if
// * the Toolkit implementation doesn't support custom cursors.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @since 1.2
// */
// public java.awt.Dimension getBestCursorSize(int preferredWidth, int
// preferredHeight) throws java.awt.HeadlessException
// { }
// /**
// * Returns the maximum number of colors the Toolkit supports in a custom cursor
// * palette.
// * Note: if an image is used which has more colors in its palette than
// * the supported maximum, the Toolkit implementation will attempt to flatten the
// * palette to the maximum. Since converting low-resolution images is difficult,
// * no guarantees are made as to the quality of a cursor image which has more
// * colors than the system supports. It is therefore recommended that this method
// * be called and an appropriate image used so no image conversion is made.
// *
// * @return the maximum number of colors, or zero if custom cursors are not
// * supported by this Toolkit implementation.
// * @exception HeadlessException if GraphicsEnvironment.isHeadless()
// * returns true
// * @see java.awt.GraphicsEnvironment#isHeadless
// * @since 1.2
// */
// public int getMaximumCursorColors() throws java.awt.HeadlessException { }
// PBP/PP
/**
* Returns whether Toolkit supports this state for
* Frames. This method tells whether the UI
* concept of, say, iconification is
* supported.
*
* @param state one of named frame state constants.
* @return true is this frame state is supported by
* this Toolkit implementation, false otherwise.
* @exception HeadlessException
* if GraphicsEnvironment.isHeadless()
* returns true.
*
* @since 1.4
*/
public boolean isFrameStateSupported(int state)
throws java.awt.HeadlessException
{ return false; }
/**
* Gets a property with the specified key and default.
* This method returns defaultValue if the property is not found.
*/
public static String getProperty(String key, String defaultValue) { return null;}
/**
* Get the application's or applet's EventQueue instance.
* Depending on the Toolkit implementation, different EventQueues
* may be returned for different applets. Applets should
* therefore not assume that the EventQueue instance returned
* by this method will be shared by other applets or the system.
*
*
First, if there is a security manager, its
* checkAwtEventQueueAccess
* method is called.
* If the default implementation of checkAwtEventQueueAccess
* is used (that is, that method is not overriden), then this results in
* a call to the security manager's checkPermission method
* with an AWTPermission("accessEventQueue") permission.
*
* @return the EventQueue object.
* @throws SecurityException
* if a security manager exists and its {@link
* java.lang.SecurityManager#checkAwtEventQueueAccess} method denies
* access to the EventQueue.
* @see java.awt.AWTPermission
*/
public final java.awt.EventQueue getSystemEventQueue() { return null;}
protected abstract java.awt.EventQueue getSystemEventQueueImpl();
// /**
// * Creates the peer for a DragSourceContext.
// * Always throws InvalidDndOperationException if
// * GraphicsEnvironment.isHeadless() returns true.
// * @see java.awt.GraphicsEnvironment#isHeadless
// */
// public abstract DragSourceContextPeer
// createDragSourceContextPeer(DragGestureEvent dge)
// throws InvalidDnDOperationException;
//
// /**
// * Creates a concrete, platform dependent, subclass of the abstract
// * DragGestureRecognizer class requested, and associates it with the
// * DragSource, Component and DragGestureListener specified.
// *
// * subclasses should override this to provide their own implementation
// *
// * @param abstractRecognizerClass The abstract class of the required recognizer
// * @param ds The DragSource
// * @param c The Component target for the DragGestureRecognizer
// * @param srcActions The actions permitted for the gesture
// * @param dgl The DragGestureListener
// *
// * @return the new object or null. Always returns null if
// * GraphicsEnvironment.isHeadless() returns true.
// * @see java.awt.GraphicsEnvironment#isHeadless
// */
// public DragGestureRecognizer createDragGestureRecognizer(Class
// abstractRecognizerClass, DragSource ds, java.awt.Component c, int
// srcActions, DragGestureListener dgl)
// { }
// /**
// * Obtains a value for the specified desktop property.
// *
// * A desktop property is a uniquely named value for a resource that
// * is Toolkit global in nature. Usually it also is an abstract
// * representation for an underlying platform dependent desktop setting.
// */
// public final synchronized Object getDesktopProperty(String propertyName) { }
//
// /**
// * Sets the named desktop property to the specified value and fires a
// * property change event to notify any listeners that the value has changed.
// */
// protected final void setDesktopProperty(String name, Object newValue) { }
//
// /**
// * an opportunity to lazily evaluate desktop property values.
// */
// protected Object lazilyLoadDesktopProperty(String name) { }
//
// /**
// * initializeDesktopProperties
// */
// protected void initializeDesktopProperties() { }
//
// /**
// * Adds the specified property change listener for the named desktop
// * property.
// * If pcl is null, no exception is thrown and no action is performed.
// *
// * @param name The name of the property to listen for
// * @param pcl The property change listener
// * @since 1.2
// */
// public synchronized void addPropertyChangeListener(String name,
// PropertyChangeListener pcl)
// { }
// /**
// * Removes the specified property change listener for the named
// * desktop property.
// * If pcl is null, no exception is thrown and no action is performed.
// *
// * @param name The name of the property to remove
// * @param pcl The property change listener
// * @since 1.2
// */
// public synchronized void removePropertyChangeListener(String name,
// PropertyChangeListener pcl)
// { }
//
// /**
// * Returns an array of all the property change listeners
// * registered on this toolkit.
// *
// * @return all of this toolkit's PropertyChangeListeners
// * or an empty array if no property change
// * listeners are currently registered
// *
// * @since 1.4
// */
// public PropertyChangeListener[] getPropertyChangeListeners() { }
// /**
// * Returns an array of all the PropertyChangeListeners
// * associated with the named property.
// *
// * @param propertyName the named property
// * @return all of the PropertyChangeListeners associated with
// * the named property or an empty array if no such listeners have
// * been added
// * @since 1.4
// */
// public synchronized PropertyChangeListener[]
// getPropertyChangeListeners(String propertyName)
// { }
// * @see #getAWTEventListeners
/**
* Adds an AWTEventListener to receive all AWTEvents dispatched
* system-wide that conform to the given eventMask.
*
* First, if there is a security manager, its checkPermission
* method is called with an
* AWTPermission("listenToAllAWTEvents") permission.
* This may result in a SecurityException.
*
* eventMask is a bitmask of event types to receive.
* It is constructed by bitwise OR-ing together the event masks
* defined in AWTEvent.
*
* Note: event listener use is not recommended for normal
* application use, but are intended solely to support special
* purpose facilities including support for accessibility,
* event record/playback, and diagnostic tracing.
*
* If listener is null, no exception is thrown and no action is performed.
*
* @param listener the event listener.
* @param eventMask the bitmask of event types to receive
* @throws SecurityException
* if a security manager exists and its
* checkPermission method doesn't allow the operation.
* @see #removeAWTEventListener
* @see SecurityManager#checkPermission
* @see java.awt.AWTEvent
* @see java.awt.AWTPermission
* @see java.awt.event.AWTEventListener
* @see java.awt.event.AWTEventListenerProxy
* @since 1.2
*/
public void addAWTEventListener(AWTEventListener listener, long eventMask)
{ }
// * @see #getAWTEventListeners
/**
* Removes an AWTEventListener from receiving dispatched AWTEvents.
*
* First, if there is a security manager, its checkPermission
* method is called with an
* AWTPermission("listenToAllAWTEvents") permission.
* This may result in a SecurityException.
*
* Note: event listener use is not recommended for normal
* application use, but are intended solely to support special
* purpose facilities including support for accessibility,
* event record/playback, and diagnostic tracing.
*
* If listener is null, no exception is thrown and no action is performed.
*
* @param listener the event listener.
* @throws SecurityException
* if a security manager exists and its
* checkPermission method doesn't allow the operation.
* @see #addAWTEventListener
* @see SecurityManager#checkPermission
* @see java.awt.AWTEvent
* @see java.awt.AWTPermission
* @see java.awt.event.AWTEventListener
* @see java.awt.event.AWTEventListenerProxy
* @since 1.2
*/
public void removeAWTEventListener(AWTEventListener listener) { }
// PBP/PP
// [6237573]
// Text in below is quoted from addAWTEventListener(), and
// matches J2SE RI.
/**
* Returns an array of all the AWTEventListeners
* registered on this toolkit.
*
* First, if there is a security manager, its
* checkPermission
* method is called with an
* AWTPermission("listenToAllAWTEvents") permission.
* This may result in a SecurityException.
*
* Listeners can be returned
* within AWTEventListenerProxy objects, which also contain
* the event mask for the given listener.
* Note that listener objects
* added multiple times appear only once in the returned array.
*
* @return all of the AWTEventListeners or an empty
* array if no listeners are currently registered
* @throws SecurityException
* if a security manager exists and its
* checkPermission method doesn't allow the operation.
* @see #addAWTEventListener
* @see #removeAWTEventListener
* @see SecurityManager#checkPermission
* @see java.awt.AWTEvent
* @see java.awt.AWTPermission
* @see java.awt.event.AWTEventListener
* @see java.awt.event.AWTEventListenerProxy
* @since 1.4
*/
public AWTEventListener[] getAWTEventListeners() {
return null;
}
// PBP/PP
// [6237573]
// Text in below is quoted from addAWTEventListener(), and
// matches J2SE RI.
/**
* Returns an array of all the AWTEventListeners
* registered on this toolkit which listen to all of the event
* types indicates in the eventMask argument.
*
* First, if there is a security manager, its
* checkPermission
* method is called with an
* AWTPermission("listenToAllAWTEvents") permission.
* This may result in a SecurityException.
*
* Listeners can be returned
* within AWTEventListenerProxy objects, which also contain
* the event mask for the given listener.
* Note that listener objects
* added multiple times appear only once in the returned array.
*
* @param eventMask the bitmask of event types to listen for
* @return all of the AWTEventListeners registered
* on this toolkit for the specified
* event types, or an empty array if no such listeners
* are currently registered
* @throws SecurityException
* if a security manager exists and its
* checkPermission method doesn't allow the operation.
* @see #addAWTEventListener
* @see #removeAWTEventListener
* @see SecurityManager#checkPermission
* @see java.awt.AWTEvent
* @see java.awt.AWTPermission
* @see java.awt.event.AWTEventListener
* @see java.awt.event.AWTEventListenerProxy
* @since 1.4
*/
public AWTEventListener[] getAWTEventListeners(long eventMask) {
return null;
}
/**
* Returns a map of visual attributes for the abstract level description
* of the given input method highlight, or null if no mapping is found.
* The style field of the input method highlight is ignored. The map
* returned is unmodifiable.
* @param highlight input method highlight
* @return style attribute map, or null
* @exception HeadlessException if
* GraphicsEnvironment.isHeadless returns true
* @see java.awt.GraphicsEnvironment#isHeadless
* @since 1.3
*/
// public abstract Map mapInputMethodHighlight(InputMethodHighlight highlight)
// throws java.awt.HeadlessException;
}