X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=libjava%2Fjava%2Fawt%2FToolkit.java;fp=libjava%2Fjava%2Fawt%2FToolkit.java;h=0000000000000000000000000000000000000000;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=4c59138fc6be9e7ee36f8c4a1d4e4dc99c7c8aad;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git
diff --git a/libjava/java/awt/Toolkit.java b/libjava/java/awt/Toolkit.java
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--- a/libjava/java/awt/Toolkit.java
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-/* Toolkit.java -- AWT Toolkit superclass
- Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package java.awt;
-
-import java.awt.event.*;
-import java.awt.peer.*;
-import java.awt.image.*;
-import java.awt.datatransfer.Clipboard;
-import java.util.Properties;
-import java.net.URL;
-import java.beans.*;
-
-/**
- * The AWT system uses a set of native peer objects to implement its
- * widgets. These peers are provided by a peer toolkit, that is accessed
- * via a subclass of this superclass. The system toolkit is retrieved
- * by the static methods getDefaultToolkit
. This method
- * determines the system toolkit by examining the system property
- * awt.toolkit
. That property is set to the name of the
- * Toolkit
subclass for the specified peer set. If the
- * awt.toolkit
property is not set, then the default
- * toolkit gnu.java.awt.peer.gtk.GtkToolkit
is used. This
- * toolkit creates its peers using the GTK+ toolkit.
- *
- * @author Aaron M. Renn (arenn@urbanophile.com)
- */
-public abstract class Toolkit
-{
-
-/*
- * Static Variables
- */
-
-// The default toolkit name.
-private static String default_toolkit_name =
- "gnu.java.awt.peer.gtk.GtkToolkit";
-
-// The toolkit in use. Once we load it, we don't ever change it
-// if the awt.toolkit propert is set.
-private static Toolkit toolkit;
-
-// The toolkit properties
-private static Properties props = new Properties();
-
-private PropertyChangeSupport changeSupport = new PropertyChangeSupport(this);
-
-private Properties desktopProperties = new Properties();
-
-/*************************************************************************/
-
-/*
- * Static Methods
- */
-
-/**
- * Returns an instance of the default toolkit. The default toolkit is
- * the subclass of Toolkit
specified in the system property
- * awt.toolkit
, or gnu.java.awt.peer.gtk.GtkToolkit
- * if the property is not set.
- *
- * @return An instance of the system default toolkit.
- *
- * @error AWTError If the toolkit cannot be loaded.
- */
-public static Toolkit
-getDefaultToolkit()
-{
- if (toolkit != null)
- return(toolkit);
-
- String toolkit_name = System.getProperty("awt.toolkit",
- default_toolkit_name);
-
- try
- {
- Class cls = Class.forName(toolkit_name);
- Object obj = cls.newInstance();
-
- if (!(obj instanceof Toolkit))
- throw new AWTError(toolkit_name + " is not a subclass of " +
- "java.awt.Toolkit");
-
- toolkit = (Toolkit)obj;
- return(toolkit);
- }
- catch(Exception e)
- {
- throw new AWTError("Cannot load AWT toolkit: " + e.getMessage());
- }
-}
-
-/*************************************************************************/
-
-/**
- * Returns the value of the property with the specified name, or the
- * default value if the property does not exist.
- *
- * @param key The name of the property to retrieve.
- * @param defThe default value of the property.
- */
-public static String
-getProperty(String key, String def)
-{
- return(props.getProperty(key, def));
-}
-
-/*************************************************************************/
-
-/**
- * Returns the native container object of the specified component. This
- * method is necessary because the parent component might be a lightweight
- * component.
- *
- * @param component The component to fetch the native container for.
- *
- * @return The native container object for this component.
- */
-protected static Container
-getNativeContainer(Component component)
-{
- component = component.getParent();
-
- for(;;)
- {
- if (component == null)
- return(null);
-
- if (!(component instanceof Container))
- {
- component = component.getParent();
- continue;
- }
-
- if (component.getPeer() instanceof LightweightPeer)
- {
- component = component.getParent();
- continue;
- }
-
- return((Container)component);
- }
-}
-
-/*************************************************************************/
-
-/*
- * Constructors
- */
-
-/**
- * Default constructor for subclasses.
- */
-public
-Toolkit()
-{
-}
-
-/*************************************************************************/
-
-/*
- * Instance Methods
- */
-
-/**
- * Creates a peer object for the specified Button
.
- *
- * @param target The Button
to create the peer for.
- *
- * @return The peer for the specified Button
object.
- */
-protected abstract ButtonPeer
-createButton(Button target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified TextField
.
- *
- * @param target The TextField
to create the peer for.
- *
- * @return The peer for the specified TextField
object.
- */
-protected abstract TextFieldPeer
-createTextField(TextField target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified Label
.
- *
- * @param target The Label
to create the peer for.
- *
- * @return The peer for the specified Label
object.
- */
-protected abstract LabelPeer
-createLabel(Label target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified List
.
- *
- * @param target The List
to create the peer for.
- *
- * @return The peer for the specified List
object.
- */
-protected abstract ListPeer
-createList(List target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified Checkbox
.
- *
- * @param target The Checkbox
to create the peer for.
- *
- * @return The peer for the specified Checkbox
object.
- */
-protected abstract CheckboxPeer
-createCheckbox(Checkbox target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified Scrollbar
.
- *
- * @param target The Scrollbar
to create the peer for.
- *
- * @return The peer for the specified Scrollbar
object.
- */
-protected abstract ScrollbarPeer
-createScrollbar(Scrollbar target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified ScrollPane
.
- *
- * @param target The ScrollPane
to create the peer for.
- *
- * @return The peer for the specified ScrollPane
object.
- */
-protected abstract ScrollPanePeer
-createScrollPane(ScrollPane target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified TextArea
.
- *
- * @param target The TextArea
to create the peer for.
- *
- * @return The peer for the specified TextArea
object.
- */
-protected abstract TextAreaPeer
-createTextArea(TextArea target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified Choice
.
- *
- * @param target The Choice
to create the peer for.
- *
- * @return The peer for the specified Choice
object.
- */
-protected abstract ChoicePeer
-createChoice(Choice target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified Frame
.
- *
- * @param target The Frame
to create the peer for.
- *
- * @return The peer for the specified Frame
object.
- */
-protected abstract FramePeer
-createFrame(Frame target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified Canvas
.
- *
- * @param target The Canvas
to create the peer for.
- *
- * @return The peer for the specified Canvas
object.
- */
-protected abstract CanvasPeer
-createCanvas(Canvas target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified Panel
.
- *
- * @param target The Panel
to create the peer for.
- *
- * @return The peer for the specified Panel
object.
- */
-protected abstract PanelPeer
-createPanel(Panel target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified Window
.
- *
- * @param target The Window
to create the peer for.
- *
- * @return The peer for the specified Window
object.
- */
-protected abstract WindowPeer
-createWindow(Window target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified Dialog
.
- *
- * @param target The dialog to create the peer for
- *
- * @return The peer for the specified font name.
- */
-protected abstract DialogPeer
-createDialog(Dialog target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified MenuBar
.
- *
- * @param target The MenuBar
to create the peer for.
- *
- * @return The peer for the specified MenuBar
object.
- */
-protected abstract MenuBarPeer
-createMenuBar(MenuBar target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified Menu
.
- *
- * @param target The Menu
to create the peer for.
- *
- * @return The peer for the specified Menu
object.
- */
-protected abstract MenuPeer
-createMenu(Menu target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified PopupMenu
.
- *
- * @param target The PopupMenu
to create the peer for.
- *
- * @return The peer for the specified PopupMenu
object.
- */
-protected abstract PopupMenuPeer
-createPopupMenu(PopupMenu target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified MenuItem
.
- *
- * @param target The MenuItem
to create the peer for.
- *
- * @return The peer for the specified MenuItem
object.
- */
-protected abstract MenuItemPeer
-createMenuItem(MenuItem target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified FileDialog
.
- *
- * @param target The FileDialog
to create the peer for.
- *
- * @return The peer for the specified FileDialog
object.
- */
-protected abstract FileDialogPeer
-createFileDialog(FileDialog target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified CheckboxMenuItem
.
- *
- * @param target The CheckboxMenuItem
to create the peer for.
- *
- * @return The peer for the specified CheckboxMenuItem
object.
- */
-protected abstract CheckboxMenuItemPeer
-createCheckboxMenuItem(CheckboxMenuItem target);
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified Component
. The
- * peer returned by this method is not a native windowing system peer
- * with its own native window. Instead, this method allows the component
- * to draw on its parent window as a "lightweight" widget.
- *
- * XXX: FIXME
- *
- * @param target The Component
to create the peer for.
- *
- * @return The peer for the specified Component
object.
- */
-protected LightweightPeer
-createComponent(Component target)
-{
- return null;
-}
-
-/*************************************************************************/
-
-/**
- * Creates a peer object for the specified font name.
- *
- * @param name The font to create the peer for.
- * @param style The font style to create the peer for.
- *
- * @return The peer for the specified font name.
- */
-protected abstract FontPeer
-getFontPeer(String name, int style);
-
-/*************************************************************************/
-
-/**
- * Copies the current system colors into the specified array. This is
- * the interface used by the SystemColors
class.
- *
- * @param colors The array to copy the system colors into.
- */
-protected void
-loadSystemColors(int systemColors[])
-{
-}
-
-/*************************************************************************/
-
-/**
- * Returns the dimensions of the screen in pixels.
- *
- * @return The dimensions of the screen in pixels.
- */
-public abstract Dimension
-getScreenSize();
-
-/*************************************************************************/
-
-/**
- * Returns the screen resolution in dots per square inch.
- *
- * @return The screen resolution in dots per square inch.
- */
-public abstract int
-getScreenResolution();
-
-/*************************************************************************/
-
-/**
- * Returns the color model of the screen.
- *
- * @return The color model of the screen.
- */
-public abstract ColorModel
-getColorModel();
-
-/*************************************************************************/
-
-/**
- * Returns the names of the available fonts.
- *
- * @return The names of the available fonts.
- */
-public abstract String[]
-getFontList();
-
-/*************************************************************************/
-
-/**
- * Return the font metrics for the specified font
- *
- * @param name The name of the font to return metrics for.
- *
- * @return The requested font metrics.
- */
-public abstract FontMetrics
-getFontMetrics(Font name);
-
-/*************************************************************************/
-
-/**
- * Flushes any buffered data to the screen so that it is in sync with
- * what the AWT system has drawn to it.
- */
-public abstract void
-sync();
-
-/*************************************************************************/
-
-/**
- * Returns an image from the specified file, which must be in a
- * recognized format. Supported formats vary from toolkit to toolkit.
- *
- * @return name The name of the file to read the image from.
- */
-public abstract Image
-getImage(String name);
-
-/*************************************************************************/
-
-/**
- * Returns an image from the specified URL, which must be in a
- * recognized format. Supported formats vary from toolkit to toolkit.
- *
- * @return url The URl to read the image from.
- */
-public abstract Image
-getImage(URL url);
-
-/*************************************************************************/
-
-/**
- * Readies an image to be rendered on the screen. The width and height
- * values can be set to the default sizes for the image by passing -1
- * in those parameters.
- *
- * @param image The image to prepare for rendering.
- * @param width The width of the image.
- * @param height The height of the image.
- * @param observer The observer to receive events about the preparation
- * process.
- *
- * @return true
if the image is already prepared for rendering,
- * false
otherwise.
- */
-public abstract boolean
-prepareImage(Image image, int width, int height, ImageObserver observer);
-
-/*************************************************************************/
-
-/**
- * Checks the status of specified image as it is being readied for
- * rendering.
- *
- * @param image The image to prepare for rendering.
- * @param width The width of the image.
- * @param height The height of the image.
- * @param observer The observer to receive events about the preparation
- * process.
- *
- * @return A union of the bitmasks from
- * java.awt.image.ImageObserver
that indicates the current
- * state of the imaging readying process.
- */
-public abstract int
-checkImage(Image image, int width, int height, ImageObserver observer);
-
-/*************************************************************************/
-
-/**
- * Creates an image using the specified ImageProducer
- *
- * @param producer The ImageProducer
to create the image from.
- *
- * @return The created image.
- */
-public abstract Image
-createImage(ImageProducer producer);
-
-/*************************************************************************/
-
-/**
- * Creates an image from the specified portion of the byte array passed.
- * The array must be in a recognized format. Supported formats vary from
- * toolkit to toolkit.
- *
- * @param data The raw image data.
- * @param offset The offset into the data where the image data starts.
- * @param len The length of the image data.
- *
- * @return The created image.
- */
-public abstract Image
-createImage(byte[] data, int offset, int len);
-
-/*************************************************************************/
-
-/**
- * Creates an image from the specified byte array. The array must be in
- * a recognized format. Supported formats vary from toolkit to toolkit.
- *
- * @param data The raw image data.
- *
- * @return The created image.
- */
-public Image
-createImage(byte[] data)
-{
- return(createImage(data, 0, data.length));
-}
-
-public abstract Image
-createImage(String filename);
-
-public abstract Image
-createImage(URL url);
-
-
-/*************************************************************************/
-
-/**
- * Returns a instance of PrintJob
for the specified
- * arguments.
- *
- * @param frame The window initiating the print job.
- * @param title The print job title.
- * @param props The print job properties.
- *
- * @return The requested print job, or null
if the job
- * was cancelled.
- */
-public abstract PrintJob
-getPrintJob(Frame frame, String title, Properties props);
-
-/*************************************************************************/
-
-/**
- * Returns the system clipboard.
- *
- * @return THe system clipboard.
- */
-public abstract Clipboard
-getSystemClipboard();
-
-/*************************************************************************/
-
-/**
- * Returns the accelerator key mask for menu shortcuts. The default is
- * Event.CTRL_MASK
. A toolkit must override this method
- * to change the default.
- *
- * @return The key mask for the menu accelerator key.
- */
-public int
-getMenuShortcutKeyMask()
-{
- return Event.CTRL_MASK;
-}
-
-public boolean
-getLockingKeyState(int keyCode)
-{
- if (keyCode != KeyEvent.VK_CAPS_LOCK
- && keyCode != KeyEvent.VK_NUM_LOCK
- && keyCode != KeyEvent.VK_SCROLL_LOCK)
- throw new IllegalArgumentException();
-
- throw new UnsupportedOperationException();
-}
-
-public void
-setLockingKeyState(int keyCode, boolean on)
-{
- if (keyCode != KeyEvent.VK_CAPS_LOCK
- && keyCode != KeyEvent.VK_NUM_LOCK
- && keyCode != KeyEvent.VK_SCROLL_LOCK)
- throw new IllegalArgumentException();
-
- throw new UnsupportedOperationException();
-}
-
-/*************************************************************************/
-
-/**
- * Returns the event queue for the applet. Despite the word "System"
- * in the name of this method, there is no guarantee that the same queue
- * is shared system wide.
- *
- * @return The event queue for this applet (or application)
- */
-public final EventQueue
-getSystemEventQueue()
-{
- return(getSystemEventQueueImpl());
-}
-
-/*************************************************************************/
-
-/**
- * // FIXME: What does this do?
- */
-protected abstract EventQueue
-getSystemEventQueueImpl();
-
-/*************************************************************************/
-
-/**
- * Causes a "beep" tone to be generated.
- */
-public abstract void
-beep();
-
-public Cursor
-createCustomCursor(Image cursor, Point hotSpot, String name)
- throws IndexOutOfBoundsException
-{
- // Presumably the only reason this isn't abstract is for backwards
- // compatibility? FIXME?
- return null;
-}
-
-public Dimension
-getBestCursorSize(int preferredWidth, int preferredHeight)
-{
- return new Dimension (0,0);
-}
-
-public int
-getMaximumCursorColors()
-{
- return 0;
-}
-
-public final Object
-getDesktopProperty(String propertyName)
-{
- return desktopProperties.get(propertyName);
-}
-
-protected final void
-setDesktopProperty(String name, Object newValue)
-{
- Object oldValue = getDesktopProperty(name);
- desktopProperties.put(name, newValue);
- changeSupport.firePropertyChange(name, oldValue, newValue);
-}
-protected Object
-lazilyLoadDesktopProperty(String name)
-{
- // FIXME - what is this??
- return null;
-}
-
-protected void
-initializeDesktopProperties()
-{
- // Overridden by toolkit implementation?
-}
-
-public void
-addPropertyChangeListener(String name, PropertyChangeListener pcl)
-{
- changeSupport.addPropertyChangeListener(name, pcl);
-}
-
-public void
-removePropertyChangeListener(String name, PropertyChangeListener pcl)
-{
- changeSupport.removePropertyChangeListener(name, pcl);
-}
-
-public void
-addAWTEventListener(AWTEventListener listener, long eventMask)
-{
- // SecurityManager s = System.getSecurityManager();
- // if (s != null)
- // s.checkPermission(AWTPermission("listenToAllAWTEvents"));
-
- // FIXME
-}
-
-public void
-removeAWTEventListener(AWTEventListener listener)
-{
- // FIXME
-}
-
-} // class Toolkit