| /* |
| * Copyright (c) 1995, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package java.awt; |
| |
| import java.beans.PropertyChangeEvent; |
| import java.util.MissingResourceException; |
| import java.util.Properties; |
| import java.util.ResourceBundle; |
| import java.util.StringTokenizer; |
| import java.awt.event.*; |
| import java.awt.peer.*; |
| 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.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.File; |
| import java.io.FileInputStream; |
| |
| import java.util.*; |
| import java.beans.PropertyChangeListener; |
| import java.beans.PropertyChangeSupport; |
| import sun.awt.AppContext; |
| |
| import sun.awt.HeadlessToolkit; |
| import sun.awt.NullComponentPeer; |
| import sun.awt.PeerEvent; |
| import sun.awt.SunToolkit; |
| import sun.awt.AWTAccessor; |
| import sun.awt.AWTPermissions; |
| |
| import sun.util.CoreResourceBundleControl; |
| |
| /** |
| * This class is the abstract superclass of all actual |
| * implementations of the Abstract Window Toolkit. Subclasses of |
| * the <code>Toolkit</code> class are used to bind the various components |
| * to particular native toolkit implementations. |
| * <p> |
| * Many GUI events may be delivered to user |
| * asynchronously, if the opposite is not specified explicitly. |
| * As well as |
| * many GUI operations may be performed asynchronously. |
| * This fact means that if the state of a component is set, and then |
| * the state immediately queried, the returned value may not yet |
| * reflect the requested change. This behavior includes, but is not |
| * limited to: |
| * <ul> |
| * <li>Scrolling to a specified position. |
| * <br>For example, calling <code>ScrollPane.setScrollPosition</code> |
| * and then <code>getScrollPosition</code> may return an incorrect |
| * value if the original request has not yet been processed. |
| * |
| * <li>Moving the focus from one component to another. |
| * <br>For more information, see |
| * <a href="http://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html#transferTiming">Timing |
| * Focus Transfers</a>, a section in |
| * <a href="http://java.sun.com/docs/books/tutorial/uiswing/">The Swing |
| * Tutorial</a>. |
| * |
| * <li>Making a top-level container visible. |
| * <br>Calling <code>setVisible(true)</code> on a <code>Window</code>, |
| * <code>Frame</code> or <code>Dialog</code> may occur |
| * asynchronously. |
| * |
| * <li>Setting the size or location of a top-level container. |
| * <br>Calls to <code>setSize</code>, <code>setBounds</code> or |
| * <code>setLocation</code> on a <code>Window</code>, |
| * <code>Frame</code> or <code>Dialog</code> are forwarded |
| * to the underlying window management system and may be |
| * ignored or modified. See {@link java.awt.Window} for |
| * more information. |
| * </ul> |
| * <p> |
| * Most applications should not call any of the methods in this |
| * class directly. The methods defined by <code>Toolkit</code> are |
| * the "glue" that joins the platform-independent classes in the |
| * <code>java.awt</code> package with their counterparts in |
| * <code>java.awt.peer</code>. Some methods defined by |
| * <code>Toolkit</code> query the native operating system directly. |
| * |
| * @author Sami Shaio |
| * @author Arthur van Hoff |
| * @author Fred Ecks |
| * @since JDK1.0 |
| */ |
| public abstract class Toolkit { |
| |
| /** |
| * Creates this toolkit's implementation of the <code>Desktop</code> |
| * using the specified peer interface. |
| * @param target the desktop to be implemented |
| * @return this toolkit's implementation of the <code>Desktop</code> |
| * @exception HeadlessException if GraphicsEnvironment.isHeadless() |
| * returns true |
| * @see java.awt.GraphicsEnvironment#isHeadless |
| * @see java.awt.Desktop |
| * @see java.awt.peer.DesktopPeer |
| * @since 1.6 |
| */ |
| protected abstract DesktopPeer createDesktopPeer(Desktop target) |
| throws HeadlessException; |
| |
| |
| /** |
| * Creates this toolkit's implementation of <code>Button</code> using |
| * the specified peer interface. |
| * @param target the button to be implemented. |
| * @return this toolkit's implementation of <code>Button</code>. |
| * @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(Button target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>TextField</code> using |
| * the specified peer interface. |
| * @param target the text field to be implemented. |
| * @return this toolkit's implementation of <code>TextField</code>. |
| * @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(TextField target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>Label</code> using |
| * the specified peer interface. |
| * @param target the label to be implemented. |
| * @return this toolkit's implementation of <code>Label</code>. |
| * @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(Label target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>List</code> using |
| * the specified peer interface. |
| * @param target the list to be implemented. |
| * @return this toolkit's implementation of <code>List</code>. |
| * @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 HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>Checkbox</code> using |
| * the specified peer interface. |
| * @param target the check box to be implemented. |
| * @return this toolkit's implementation of <code>Checkbox</code>. |
| * @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(Checkbox target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>Scrollbar</code> using |
| * the specified peer interface. |
| * @param target the scroll bar to be implemented. |
| * @return this toolkit's implementation of <code>Scrollbar</code>. |
| * @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(Scrollbar target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>ScrollPane</code> using |
| * the specified peer interface. |
| * @param target the scroll pane to be implemented. |
| * @return this toolkit's implementation of <code>ScrollPane</code>. |
| * @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(ScrollPane target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>TextArea</code> using |
| * the specified peer interface. |
| * @param target the text area to be implemented. |
| * @return this toolkit's implementation of <code>TextArea</code>. |
| * @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(TextArea target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>Choice</code> using |
| * the specified peer interface. |
| * @param target the choice to be implemented. |
| * @return this toolkit's implementation of <code>Choice</code>. |
| * @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(Choice target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>Frame</code> using |
| * the specified peer interface. |
| * @param target the frame to be implemented. |
| * @return this toolkit's implementation of <code>Frame</code>. |
| * @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(Frame target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>Canvas</code> using |
| * the specified peer interface. |
| * @param target the canvas to be implemented. |
| * @return this toolkit's implementation of <code>Canvas</code>. |
| * @see java.awt.Canvas |
| * @see java.awt.peer.CanvasPeer |
| */ |
| protected abstract CanvasPeer createCanvas(Canvas target); |
| |
| /** |
| * Creates this toolkit's implementation of <code>Panel</code> using |
| * the specified peer interface. |
| * @param target the panel to be implemented. |
| * @return this toolkit's implementation of <code>Panel</code>. |
| * @see java.awt.Panel |
| * @see java.awt.peer.PanelPeer |
| */ |
| protected abstract PanelPeer createPanel(Panel target); |
| |
| /** |
| * Creates this toolkit's implementation of <code>Window</code> using |
| * the specified peer interface. |
| * @param target the window to be implemented. |
| * @return this toolkit's implementation of <code>Window</code>. |
| * @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(Window target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>Dialog</code> using |
| * the specified peer interface. |
| * @param target the dialog to be implemented. |
| * @return this toolkit's implementation of <code>Dialog</code>. |
| * @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(Dialog target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>MenuBar</code> using |
| * the specified peer interface. |
| * @param target the menu bar to be implemented. |
| * @return this toolkit's implementation of <code>MenuBar</code>. |
| * @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(MenuBar target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>Menu</code> using |
| * the specified peer interface. |
| * @param target the menu to be implemented. |
| * @return this toolkit's implementation of <code>Menu</code>. |
| * @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(Menu target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>PopupMenu</code> using |
| * the specified peer interface. |
| * @param target the popup menu to be implemented. |
| * @return this toolkit's implementation of <code>PopupMenu</code>. |
| * @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(PopupMenu target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>MenuItem</code> using |
| * the specified peer interface. |
| * @param target the menu item to be implemented. |
| * @return this toolkit's implementation of <code>MenuItem</code>. |
| * @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(MenuItem target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>FileDialog</code> using |
| * the specified peer interface. |
| * @param target the file dialog to be implemented. |
| * @return this toolkit's implementation of <code>FileDialog</code>. |
| * @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(FileDialog target) |
| throws HeadlessException; |
| |
| /** |
| * Creates this toolkit's implementation of <code>CheckboxMenuItem</code> using |
| * the specified peer interface. |
| * @param target the checkbox menu item to be implemented. |
| * @return this toolkit's implementation of <code>CheckboxMenuItem</code>. |
| * @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( |
| CheckboxMenuItem target) throws HeadlessException; |
| |
| /** |
| * Obtains this toolkit's implementation of helper class for |
| * <code>MouseInfo</code> operations. |
| * @return this toolkit's implementation of helper for <code>MouseInfo</code> |
| * @throws UnsupportedOperationException if this operation is not implemented |
| * @see java.awt.peer.MouseInfoPeer |
| * @see java.awt.MouseInfo |
| * @since 1.5 |
| */ |
| protected MouseInfoPeer getMouseInfoPeer() { |
| throw new UnsupportedOperationException("Not implemented"); |
| } |
| |
| private static LightweightPeer lightweightMarker; |
| |
| /** |
| * 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(Component target) { |
| if (lightweightMarker == null) { |
| lightweightMarker = new NullComponentPeer(); |
| } |
| return lightweightMarker; |
| } |
| |
| /** |
| * Creates this toolkit's implementation of <code>Font</code> using |
| * the specified peer interface. |
| * @param name the font to be implemented |
| * @param style the style of the font, such as <code>PLAIN</code>, |
| * <code>BOLD</code>, <code>ITALIC</code>, or a combination |
| * @return this toolkit's implementation of <code>Font</code> |
| * @see java.awt.Font |
| * @see java.awt.peer.FontPeer |
| * @see java.awt.GraphicsEnvironment#getAllFonts |
| * @deprecated see java.awt.GraphicsEnvironment#getAllFonts |
| */ |
| @Deprecated |
| protected abstract FontPeer getFontPeer(String name, int style); |
| |
| // The following method is called by the private method |
| // <code>updateSystemColors</code> in <code>SystemColor</code>. |
| |
| /** |
| * Fills in the integer array that is supplied as an argument |
| * with the current system color values. |
| * |
| * @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 HeadlessException { |
| GraphicsEnvironment.checkHeadless(); |
| } |
| |
| /** |
| * Controls whether the layout of Containers is validated dynamically |
| * during resizing, or statically, after resizing is complete. |
| * Use {@code isDynamicLayoutActive()} to detect if this feature enabled |
| * in this program and is supported by this operating system |
| * and/or window manager. |
| * Note that this feature is supported not on all platforms, and |
| * conversely, that this feature cannot be turned off on some platforms. |
| * On these platforms where dynamic layout during resizing 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 support or settings of the underlying |
| * operating system or |
| * window manager. The OS/WM support can be |
| * queried using getDesktopProperty("awt.dynamicLayoutSupported") method. |
| * |
| * @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 completed. |
| * @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(final boolean dynamic) |
| throws HeadlessException { |
| GraphicsEnvironment.checkHeadless(); |
| if (this != getDefaultToolkit()) { |
| getDefaultToolkit().setDynamicLayout(dynamic); |
| } |
| } |
| |
| /** |
| * 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 HeadlessException { |
| GraphicsEnvironment.checkHeadless(); |
| |
| if (this != Toolkit.getDefaultToolkit()) { |
| return Toolkit.getDefaultToolkit().isDynamicLayoutSet(); |
| } else { |
| return false; |
| } |
| } |
| |
| /** |
| * Returns whether dynamic layout of Containers on resize is |
| * currently active (both set in program |
| *( {@code isDynamicLayoutSet()} ) |
| *, and supported |
| * by the underlying operating system and/or window manager). |
| * If dynamic layout is currently inactive then Containers |
| * re-layout their components when resizing is completed. As a result |
| * the {@code Component.validate()} method will be invoked only |
| * once per resize. |
| * If dynamic layout is currently active then Containers |
| * re-layout their components on every native resize event and |
| * the {@code validate()} method will be invoked each time. |
| * The OS/WM support can be queried using |
| * the getDesktopProperty("awt.dynamicLayoutSupported") method. |
| * |
| * @return true if dynamic layout of Containers on resize is |
| * currently active, false otherwise. |
| * @exception HeadlessException if the GraphicsEnvironment.isHeadless() |
| * method returns true |
| * @see #setDynamicLayout(boolean dynamic) |
| * @see #isDynamicLayoutSet() |
| * @see #getDesktopProperty(String propertyName) |
| * @see java.awt.GraphicsEnvironment#isHeadless |
| * @since 1.4 |
| */ |
| public boolean isDynamicLayoutActive() |
| throws HeadlessException { |
| GraphicsEnvironment.checkHeadless(); |
| |
| if (this != Toolkit.getDefaultToolkit()) { |
| return Toolkit.getDefaultToolkit().isDynamicLayoutActive(); |
| } else { |
| return false; |
| } |
| } |
| |
| /** |
| * Gets the size of the screen. On systems with multiple displays, the |
| * primary display is used. Multi-screen aware display dimensions are |
| * available from <code>GraphicsConfiguration</code> and |
| * <code>GraphicsDevice</code>. |
| * @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.GraphicsDevice#getDisplayMode |
| * @see java.awt.GraphicsEnvironment#isHeadless |
| */ |
| public abstract Dimension getScreenSize() |
| throws 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 HeadlessException; |
| |
| /** |
| * Gets the insets of the screen. |
| * @param gc a <code>GraphicsConfiguration</code> |
| * @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 Insets getScreenInsets(GraphicsConfiguration gc) |
| throws HeadlessException { |
| GraphicsEnvironment.checkHeadless(); |
| if (this != Toolkit.getDefaultToolkit()) { |
| return Toolkit.getDefaultToolkit().getScreenInsets(gc); |
| } else { |
| return new Insets(0, 0, 0, 0); |
| } |
| } |
| |
| /** |
| * Determines the color model of this toolkit's screen. |
| * <p> |
| * <code>ColorModel</code> 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. |
| * <p> |
| * This toolkit method is called by the |
| * <code>getColorModel</code> method |
| * of the <code>Component</code> 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 HeadlessException; |
| |
| /** |
| * Returns the names of the available fonts in this toolkit.<p> |
| * For 1.1, the following font names are deprecated (the replacement |
| * name follows): |
| * <ul> |
| * <li>TimesRoman (use Serif) |
| * <li>Helvetica (use SansSerif) |
| * <li>Courier (use Monospaced) |
| * </ul><p> |
| * 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() |
| */ |
| @Deprecated |
| public abstract String[] getFontList(); |
| |
| /** |
| * 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 As of JDK version 1.2, replaced by the <code>Font</code> |
| * method <code>getLineMetrics</code>. |
| * @see java.awt.font.LineMetrics |
| * @see java.awt.Font#getLineMetrics |
| * @see java.awt.GraphicsEnvironment#getScreenDevices |
| */ |
| @Deprecated |
| public abstract FontMetrics getFontMetrics(Font font); |
| |
| /** |
| * Synchronizes this toolkit's graphics state. Some window systems |
| * may do buffering of graphics events. |
| * <p> |
| * This method ensures that the display is up-to-date. It is useful |
| * for animation. |
| */ |
| public abstract void sync(); |
| |
| /** |
| * The default toolkit. |
| */ |
| private static Toolkit toolkit; |
| |
| /** |
| * Used internally by the assistive technologies functions; set at |
| * init time and used at load time |
| */ |
| private static String atNames; |
| |
| /** |
| * Initializes properties related to assistive technologies. |
| * These properties are used both in the loadAssistiveProperties() |
| * function below, as well as other classes in the jdk that depend |
| * on the properties (such as the use of the screen_magnifier_present |
| * property in Java2D hardware acceleration initialization). The |
| * initialization of the properties must be done before the platform- |
| * specific Toolkit class is instantiated so that all necessary |
| * properties are set up properly before any classes dependent upon them |
| * are initialized. |
| */ |
| private static void initAssistiveTechnologies() { |
| |
| // Get accessibility properties |
| final String sep = File.separator; |
| final Properties properties = new Properties(); |
| |
| |
| atNames = java.security.AccessController.doPrivileged( |
| new java.security.PrivilegedAction<String>() { |
| public String run() { |
| |
| // Try loading the per-user accessibility properties file. |
| try { |
| File propsFile = new File( |
| System.getProperty("user.home") + |
| sep + ".accessibility.properties"); |
| FileInputStream in = |
| new FileInputStream(propsFile); |
| |
| // Inputstream has been buffered in Properties class |
| properties.load(in); |
| in.close(); |
| } catch (Exception e) { |
| // Per-user accessibility properties file does not exist |
| } |
| |
| // Try loading the system-wide accessibility properties |
| // file only if a per-user accessibility properties |
| // file does not exist or is empty. |
| if (properties.size() == 0) { |
| try { |
| File propsFile = new File( |
| System.getProperty("java.home") + sep + "lib" + |
| sep + "accessibility.properties"); |
| FileInputStream in = |
| new FileInputStream(propsFile); |
| |
| // Inputstream has been buffered in Properties class |
| properties.load(in); |
| in.close(); |
| } catch (Exception e) { |
| // System-wide accessibility properties file does |
| // not exist; |
| } |
| } |
| |
| // Get whether a screen magnifier is present. First check |
| // the system property and then check the properties file. |
| String magPresent = System.getProperty("javax.accessibility.screen_magnifier_present"); |
| if (magPresent == null) { |
| magPresent = properties.getProperty("screen_magnifier_present", null); |
| if (magPresent != null) { |
| System.setProperty("javax.accessibility.screen_magnifier_present", magPresent); |
| } |
| } |
| |
| // Get the names of any assistive technolgies to load. First |
| // check the system property and then check the properties |
| // file. |
| String classNames = System.getProperty("javax.accessibility.assistive_technologies"); |
| if (classNames == null) { |
| classNames = properties.getProperty("assistive_technologies", null); |
| if (classNames != null) { |
| System.setProperty("javax.accessibility.assistive_technologies", classNames); |
| } |
| } |
| return classNames; |
| } |
| }); |
| } |
| |
| /** |
| * 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(). All errors are handled |
| * via an AWTError exception. |
| * |
| * <p>The assumption is made that assistive technology classes are supplied |
| * as part of INSTALLED (as opposed to: BUNDLED) extensions or specified |
| * on the class path |
| * (and therefore can be loaded using the class loader returned by |
| * a call to <code>ClassLoader.getSystemClassLoader</code>, whose |
| * delegation parent is the extension class loader for installed |
| * extensions). |
| */ |
| private static void loadAssistiveTechnologies() { |
| // Load any assistive technologies |
| if (atNames != null) { |
| ClassLoader cl = ClassLoader.getSystemClassLoader(); |
| StringTokenizer parser = new StringTokenizer(atNames," ,"); |
| String atName; |
| while (parser.hasMoreTokens()) { |
| atName = parser.nextToken(); |
| try { |
| Class<?> clazz; |
| if (cl != null) { |
| clazz = cl.loadClass(atName); |
| } else { |
| clazz = Class.forName(atName); |
| } |
| clazz.newInstance(); |
| } catch (ClassNotFoundException e) { |
| throw new AWTError("Assistive Technology not found: " |
| + atName); |
| } catch (InstantiationException e) { |
| throw new AWTError("Could not instantiate Assistive" |
| + " Technology: " + atName); |
| } catch (IllegalAccessException e) { |
| throw new AWTError("Could not access Assistive" |
| + " Technology: " + atName); |
| } catch (Exception e) { |
| throw new AWTError("Error trying to install Assistive" |
| + " Technology: " + atName + " " + e); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Gets the default toolkit. |
| * <p> |
| * If a system property named <code>"java.awt.headless"</code> is set |
| * to <code>true</code> then the headless implementation |
| * of <code>Toolkit</code> is used. |
| * <p> |
| * If there is no <code>"java.awt.headless"</code> or it is set to |
| * <code>false</code> and there is a system property named |
| * <code>"awt.toolkit"</code>, |
| * that property is treated as the name of a class that is a subclass |
| * of <code>Toolkit</code>; |
| * otherwise the default platform-specific implementation of |
| * <code>Toolkit</code> is used. |
| * <p> |
| * 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 Toolkit getDefaultToolkit() { |
| if (toolkit == null) { |
| try { |
| // We disable the JIT during toolkit initialization. This |
| // tends to touch lots of classes that aren't needed again |
| // later and therefore JITing is counter-productiive. |
| java.lang.Compiler.disable(); |
| |
| java.security.AccessController.doPrivileged( |
| new java.security.PrivilegedAction<Void>() { |
| public Void run() { |
| String nm = null; |
| Class<?> cls = null; |
| try { |
| nm = System.getProperty("awt.toolkit"); |
| try { |
| cls = Class.forName(nm); |
| } catch (ClassNotFoundException e) { |
| ClassLoader cl = ClassLoader.getSystemClassLoader(); |
| if (cl != null) { |
| try { |
| cls = cl.loadClass(nm); |
| } catch (ClassNotFoundException ee) { |
| throw new AWTError("Toolkit not found: " + nm); |
| } |
| } |
| } |
| if (cls != null) { |
| toolkit = (Toolkit)cls.newInstance(); |
| if (GraphicsEnvironment.isHeadless()) { |
| toolkit = new HeadlessToolkit(toolkit); |
| } |
| } |
| } catch (InstantiationException e) { |
| throw new AWTError("Could not instantiate Toolkit: " + nm); |
| } catch (IllegalAccessException e) { |
| throw new AWTError("Could not access Toolkit: " + nm); |
| } |
| return null; |
| } |
| }); |
| loadAssistiveTechnologies(); |
| } finally { |
| // Make sure to always re-enable the JIT. |
| java.lang.Compiler.enable(); |
| } |
| } |
| return toolkit; |
| } |
| |
| /** |
| * 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. |
| * <p> |
| * Since the mechanism required to facilitate this sharing of |
| * <code>Image</code> objects may continue to hold onto images |
| * that are no longer in use for an indefinite period of time, |
| * developers are encouraged to implement their own caching of |
| * images by using the {@link #createImage(java.lang.String) createImage} |
| * variant wherever available. |
| * If the image data contained in the specified file changes, |
| * the <code>Image</code> object returned from this method may |
| * still contain stale information which was loaded from the |
| * file after a prior call. |
| * Previously loaded image data can be manually discarded by |
| * calling the {@link Image#flush flush} method on the |
| * returned <code>Image</code>. |
| * <p> |
| * This method first checks if there is a security manager installed. |
| * If so, the method calls the security manager's |
| * <code>checkRead</code> method with the file specified to ensure |
| * that the access to the image is allowed. |
| * @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 doesn't allow the operation. |
| * @see #createImage(java.lang.String) |
| */ |
| public abstract Image getImage(String filename); |
| |
| /** |
| * 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. |
| * <p> |
| * Since the mechanism required to facilitate this sharing of |
| * <code>Image</code> objects may continue to hold onto images |
| * that are no longer in use for an indefinite period of time, |
| * developers are encouraged to implement their own caching of |
| * images by using the {@link #createImage(java.net.URL) createImage} |
| * variant wherever available. |
| * If the image data stored at the specified URL changes, |
| * the <code>Image</code> object returned from this method may |
| * still contain stale information which was fetched from the |
| * URL after a prior call. |
| * Previously loaded image data can be manually discarded by |
| * calling the {@link Image#flush flush} method on the |
| * returned <code>Image</code>. |
| * <p> |
| * This method first checks if there is a security manager installed. |
| * If so, the method calls the security manager's |
| * <code>checkPermission</code> method with the |
| * url.openConnection().getPermission() permission to ensure |
| * that the access to the image is allowed. For compatibility |
| * with pre-1.2 security managers, if the access is denied with |
| * <code>FilePermission</code> or <code>SocketPermission</code>, |
| * the method throws the <code>SecurityException</code> |
| * if the corresponding 1.1-style SecurityManager.checkXXX method |
| * also denies permission. |
| * @param url the URL to use in fetching the pixel data. |
| * @return an image which gets its pixel data from |
| * the specified URL. |
| * @throws SecurityException if a security manager exists and its |
| * checkPermission method doesn't allow |
| * the operation. |
| * @see #createImage(java.net.URL) |
| */ |
| public abstract 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. |
| * <p> |
| * This method first checks if there is a security manager installed. |
| * If so, the method calls the security manager's |
| * <code>checkRead</code> method with the specified file to ensure |
| * that the image creation is allowed. |
| * @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 doesn't allow the operation. |
| * @see #getImage(java.lang.String) |
| */ |
| public abstract Image createImage(String filename); |
| |
| /** |
| * 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. |
| * <p> |
| * This method first checks if there is a security manager installed. |
| * If so, the method calls the security manager's |
| * <code>checkPermission</code> method with the |
| * url.openConnection().getPermission() permission to ensure |
| * that the image creation is allowed. For compatibility |
| * with pre-1.2 security managers, if the access is denied with |
| * <code>FilePermission</code> or <code>SocketPermission</code>, |
| * the method throws <code>SecurityException</code> |
| * if the corresponding 1.1-style SecurityManager.checkXXX method |
| * also denies permission. |
| * @param url the URL to use in fetching the pixel data. |
| * @return an image which gets its pixel data from |
| * the specified URL. |
| * @throws SecurityException if a security manager exists and its |
| * checkPermission method doesn't allow |
| * the operation. |
| * @see #getImage(java.net.URL) |
| */ |
| public abstract Image createImage(URL url); |
| |
| /** |
| * Prepares an image for rendering. |
| * <p> |
| * If the values of the width and height arguments are both |
| * <code>-1</code>, 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. |
| * <p> |
| * The image data is downloaded asynchronously in another thread, |
| * and an appropriately scaled screen representation of the image is |
| * generated. |
| * <p> |
| * This method is called by components <code>prepareImage</code> |
| * methods. |
| * <p> |
| * Information on the flags returned by this method can be found |
| * with the definition of the <code>ImageObserver</code> interface. |
| |
| * @param image the image for which to prepare a |
| * screen representation. |
| * @param width the width of the desired screen |
| * representation, or <code>-1</code>. |
| * @param height the height of the desired screen |
| * representation, or <code>-1</code>. |
| * @param observer the <code>ImageObserver</code> |
| * object to be notified as the |
| * image is being prepared. |
| * @return <code>true</code> if the image has already been |
| * fully prepared; <code>false</code> 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(Image image, int width, int height, |
| ImageObserver observer); |
| |
| /** |
| * Indicates the construction status of a specified image that is |
| * being prepared for display. |
| * <p> |
| * If the values of the width and height arguments are both |
| * <code>-1</code>, 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. |
| * <p> |
| * This method does not cause the image to begin loading. |
| * An application must call <code>prepareImage</code> to force |
| * the loading of an image. |
| * <p> |
| * This method is called by the component's <code>checkImage</code> |
| * methods. |
| * <p> |
| * Information on the flags returned by this method can be found |
| * with the definition of the <code>ImageObserver</code> interface. |
| * @param image the image whose status is being checked. |
| * @param width the width of the scaled version whose status is |
| * being checked, or <code>-1</code>. |
| * @param height the height of the scaled version whose status |
| * is being checked, or <code>-1</code>. |
| * @param observer the <code>ImageObserver</code> object to be |
| * notified as the image is being prepared. |
| * @return the bitwise inclusive <strong>OR</strong> of the |
| * <code>ImageObserver</code> 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(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 Image createImage(ImageProducer producer); |
| |
| /** |
| * Creates an image which decodes the image stored in the specified |
| * byte array. |
| * <p> |
| * 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 Image createImage(byte[] imagedata) { |
| return createImage(imagedata, 0, imagedata.length); |
| } |
| |
| /** |
| * 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 Image createImage(byte[] imagedata, |
| int imageoffset, |
| int imagelength); |
| |
| /** |
| * Gets a <code>PrintJob</code> object which is the result of initiating |
| * a print operation on the toolkit's platform. |
| * <p> |
| * 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 <code>checkPrintJobAccess</code> method to |
| * ensure initiation of a print operation is allowed. If the default |
| * implementation of <code>checkPrintJobAccess</code> is used (that is, |
| * that method is not overriden), then this results in a call to the |
| * security manager's <code>checkPermission</code> method with a <code> |
| * RuntimePermission("queuePrintJob")</code> 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 <code>PrintJob</code> object, or <code>null</code> if the |
| * user cancelled the print job. |
| * @throws NullPointerException if frame is null |
| * @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 PrintJob getPrintJob(Frame frame, String jobtitle, |
| Properties props); |
| |
| /** |
| * Gets a <code>PrintJob</code> object which is the result of initiating |
| * a print operation on the toolkit's platform. |
| * <p> |
| * 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 <code>checkPrintJobAccess</code> method to |
| * ensure initiation of a print operation is allowed. If the default |
| * implementation of <code>checkPrintJobAccess</code> is used (that is, |
| * that method is not overriden), then this results in a call to the |
| * security manager's <code>checkPermission</code> method with a <code> |
| * RuntimePermission("queuePrintJob")</code> 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 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 <code>PrintJob</code> object, or <code>null</code> if the |
| * user cancelled the print job. |
| * @throws NullPointerException if frame is null |
| * @throws IllegalArgumentException if pageAttributes specifies differing |
| * cross feed and feed resolutions. Also if this thread has |
| * access to the file system and jobAttributes specifies |
| * print to file, and the specified destination file exists but |
| * is a directory rather than a regular file, does not exist but |
| * cannot be created, or cannot be opened for any other reason. |
| * However in the case of print to file, if a dialog is also |
| * requested to be displayed then the user will be given an |
| * opportunity to select a file and proceed with printing. |
| * The dialog will ensure that the selected output file |
| * is valid before returning from this method. |
| * @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 PrintJob getPrintJob(Frame frame, String jobtitle, |
| JobAttributes jobAttributes, |
| PageAttributes pageAttributes) { |
| // Override to add printing support with new job/page control classes |
| |
| if (this != Toolkit.getDefaultToolkit()) { |
| return Toolkit.getDefaultToolkit().getPrintJob(frame, jobtitle, |
| jobAttributes, |
| pageAttributes); |
| } else { |
| return getPrintJob(frame, jobtitle, null); |
| } |
| } |
| |
| /** |
| * Emits an audio beep depending on native system settings and hardware |
| * capabilities. |
| * @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. |
| * <p> |
| * In addition to any and all formats specified in the flavormap.properties |
| * file, or other file specified by the <code>AWT.DnD.flavorMapFileURL |
| * </code> Toolkit property, text returned by the system Clipboard's <code> |
| * getTransferData()</code> method is available in the following flavors: |
| * <ul> |
| * <li>DataFlavor.stringFlavor</li> |
| * <li>DataFlavor.plainTextFlavor (<b>deprecated</b>)</li> |
| * </ul> |
| * As with <code>java.awt.datatransfer.StringSelection</code>, if the |
| * requested flavor is <code>DataFlavor.plainTextFlavor</code>, or an |
| * equivalent flavor, a Reader is returned. <b>Note:</b> The behavior of |
| * the system Clipboard's <code>getTransferData()</code> method for <code> |
| * DataFlavor.plainTextFlavor</code>, and equivalent DataFlavors, is |
| * inconsistent with the definition of <code>DataFlavor.plainTextFlavor |
| * </code>. Because of this, support for <code> |
| * DataFlavor.plainTextFlavor</code>, and equivalent flavors, is |
| * <b>deprecated</b>. |
| * <p> |
| * 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 {@link SecurityManager#checkPermission |
| * checkPermission} method to check {@code AWTPermission("accessClipboard")}. |
| * |
| * @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 HeadlessException; |
| |
| /** |
| * Gets the singleton instance of the system selection as a |
| * <code>Clipboard</code> object. This allows an application to read and |
| * modify the current, system-wide selection. |
| * <p> |
| * 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 |
| * <code>FocusListener</code> on all <code>Component</code>s which support |
| * text selection, and, between <code>FOCUS_GAINED</code> and |
| * <code>FOCUS_LOST</code> events delivered to that <code>Component</code>, |
| * updating the system selection <code>Clipboard</code> when the selection |
| * changes inside the <code>Component</code>. 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 <code>java.awt.TextComponent</code> and |
| * <code>javax.swing.text.JTextComponent</code> already adhere to this |
| * policy. When using these classes, and their subclasses, developers need |
| * not write any additional code. |
| * <p> |
| * Some platforms do not support a system selection <code>Clipboard</code>. |
| * On those platforms, this method will return <code>null</code>. In such a |
| * case, an application is absolved from its responsibility to update the |
| * system selection <code>Clipboard</code> as described above. |
| * <p> |
| * 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 {@link SecurityManager#checkPermission |
| * checkPermission} method to check {@code AWTPermission("accessClipboard")}. |
| * |
| * @return the system selection as a <code>Clipboard</code>, or |
| * <code>null</code> if the native platform does not support a |
| * system selection <code>Clipboard</code> |
| * @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 HeadlessException { |
| GraphicsEnvironment.checkHeadless(); |
| |
| if (this != Toolkit.getDefaultToolkit()) { |
| return Toolkit.getDefaultToolkit().getSystemSelection(); |
| } else { |
| GraphicsEnvironment.checkHeadless(); |
| return null; |
| } |
| } |
| |
| /** |
| * Determines which modifier key is the appropriate accelerator |
| * key for menu shortcuts. |
| * <p> |
| * Menu shortcuts, which are embodied in the |
| * <code>MenuShortcut</code> class, are handled by the |
| * <code>MenuBar</code> class. |
| * <p> |
| * By default, this method returns <code>Event.CTRL_MASK</code>. |
| * Toolkit implementations should override this method if the |
| * <b>Control</b> key isn't the correct key for accelerators. |
| * @return the modifier mask on the <code>Event</code> 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 HeadlessException { |
| GraphicsEnvironment.checkHeadless(); |
| |
| return Event.CTRL_MASK; |
| } |
| |
| /** |
| * 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 <code>keyCode</code> |
| * 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 |
| { |
| GraphicsEnvironment.checkHeadless(); |
| |
| if (! (keyCode == KeyEvent.VK_CAPS_LOCK || keyCode == KeyEvent.VK_NUM_LOCK || |
| keyCode == KeyEvent.VK_SCROLL_LOCK || keyCode == KeyEvent.VK_KANA_LOCK)) { |
| throw new IllegalArgumentException("invalid key for Toolkit.getLockingKeyState"); |
| } |
| throw new UnsupportedOperationException("Toolkit.getLockingKeyState"); |
| } |
| |
| /** |
| * 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}. |
| * <p> |
| * 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 <code>keyCode</code> |
| * 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 |
| { |
| GraphicsEnvironment.checkHeadless(); |
| |
| if (! (keyCode == KeyEvent.VK_CAPS_LOCK || keyCode == KeyEvent.VK_NUM_LOCK || |
| keyCode == KeyEvent.VK_SCROLL_LOCK || keyCode == KeyEvent.VK_KANA_LOCK)) { |
| throw new IllegalArgumentException("invalid key for Toolkit.setLockingKeyState"); |
| } |
| throw new UnsupportedOperationException("Toolkit.setLockingKeyState"); |
| } |
| |
| /** |
| * Give native peers the ability to query the native container |
| * given a native component (eg the direct parent may be lightweight). |
| */ |
| protected static Container getNativeContainer(Component c) { |
| return c.getNativeContainer(); |
| } |
| |
| /** |
| * 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). |
| * |
| * <p>Note that multi-frame images are invalid and may cause this |
| * method to hang. |
| * |
| * @param cursor the image to display when the cursor is activated |
| * @param hotSpot the X and Y of the large cursor's hot spot; the |
| * hotSpot values must be less than the Dimension returned by |
| * <code>getBestCursorSize</code> |
| * @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 Cursor createCustomCursor(Image cursor, Point hotSpot, String name) |
| throws IndexOutOfBoundsException, HeadlessException |
| { |
| // Override to implement custom cursor support. |
| if (this != Toolkit.getDefaultToolkit()) { |
| return Toolkit.getDefaultToolkit(). |
| createCustomCursor(cursor, hotSpot, name); |
| } else { |
| return new Cursor(Cursor.DEFAULT_CURSOR); |
| } |
| } |
| |
| /** |
| * 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. <p> |
| * 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 Dimension getBestCursorSize(int preferredWidth, |
| int preferredHeight) throws HeadlessException { |
| GraphicsEnvironment.checkHeadless(); |
| |
| // Override to implement custom cursor support. |
| if (this != Toolkit.getDefaultToolkit()) { |
| return Toolkit.getDefaultToolkit(). |
| getBestCursorSize(preferredWidth, preferredHeight); |
| } else { |
| return new Dimension(0, 0); |
| } |
| } |
| |
| /** |
| * Returns the maximum number of colors the Toolkit supports in a custom cursor |
| * palette.<p> |
| * 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 HeadlessException { |
| GraphicsEnvironment.checkHeadless(); |
| |
| // Override to implement custom cursor support. |
| if (this != Toolkit.getDefaultToolkit()) { |
| return Toolkit.getDefaultToolkit().getMaximumCursorColors(); |
| } else { |
| return 0; |
| } |
| } |
| |
| /** |
| * Returns whether Toolkit supports this state for |
| * <code>Frame</code>s. This method tells whether the <em>UI |
| * concept</em> of, say, maximization or iconification is |
| * supported. It will always return false for "compound" states |
| * like <code>Frame.ICONIFIED|Frame.MAXIMIZED_VERT</code>. |
| * In other words, the rule of thumb is that only queries with a |
| * single frame state constant as an argument are meaningful. |
| * <p>Note that supporting a given concept is a platform- |
| * dependent feature. Due to native limitations the Toolkit |
| * object may report a particular state as supported, however at |
| * the same time the Toolkit object will be unable to apply the |
| * state to a given frame. This circumstance has two following |
| * consequences: |
| * <ul> |
| * <li>Only the return value of {@code false} for the present |
| * method actually indicates that the given state is not |
| * supported. If the method returns {@code true} the given state |
| * may still be unsupported and/or unavailable for a particular |
| * frame. |
| * <li>The developer should consider examining the value of the |
| * {@link java.awt.event.WindowEvent#getNewState} method of the |
| * {@code WindowEvent} received through the {@link |
| * java.awt.event.WindowStateListener}, rather than assuming |
| * that the state given to the {@code setExtendedState()} method |
| * will be definitely applied. For more information see the |
| * documentation for the {@link Frame#setExtendedState} method. |
| * </ul> |
| * |
| * @param state one of named frame state constants. |
| * @return <code>true</code> is this frame state is supported by |
| * this Toolkit implementation, <code>false</code> otherwise. |
| * @exception HeadlessException |
| * if <code>GraphicsEnvironment.isHeadless()</code> |
| * returns <code>true</code>. |
| * @see java.awt.Window#addWindowStateListener |
| * @since 1.4 |
| */ |
| public boolean isFrameStateSupported(int state) |
| throws HeadlessException |
| { |
| GraphicsEnvironment.checkHeadless(); |
| |
| if (this != Toolkit.getDefaultToolkit()) { |
| return Toolkit.getDefaultToolkit(). |
| isFrameStateSupported(state); |
| } else { |
| return (state == Frame.NORMAL); // others are not guaranteed |
| } |
| } |
| |
| /** |
| * Support for I18N: any visible strings should be stored in |
| * sun.awt.resources.awt.properties. The ResourceBundle is stored |
| * here, so that only one copy is maintained. |
| */ |
| private static ResourceBundle resources; |
| private static ResourceBundle platformResources; |
| |
| // called by platform toolkit |
| private static void setPlatformResources(ResourceBundle bundle) { |
| platformResources = bundle; |
| } |
| |
| /** |
| * Initialize JNI field and method ids |
| */ |
| private static native void initIDs(); |
| |
| /** |
| * WARNING: This is a temporary workaround for a problem in the |
| * way the AWT loads native libraries. A number of classes in the |
| * AWT package have a native method, initIDs(), which initializes |
| * the JNI field and method ids used in the native portion of |
| * their implementation. |
| * |
| * Since the use and storage of these ids is done by the |
| * implementation libraries, the implementation of these method is |
| * provided by the particular AWT implementations (for example, |
| * "Toolkit"s/Peer), such as Motif, Microsoft Windows, or Tiny. The |
| * problem is that this means that the native libraries must be |
| * loaded by the java.* classes, which do not necessarily know the |
| * names of the libraries to load. A better way of doing this |
| * would be to provide a separate library which defines java.awt.* |
| * initIDs, and exports the relevant symbols out to the |
| * implementation libraries. |
| * |
| * For now, we know it's done by the implementation, and we assume |
| * that the name of the library is "awt". -br. |
| * |
| * If you change loadLibraries(), please add the change to |
| * java.awt.image.ColorModel.loadLibraries(). Unfortunately, |
| * classes can be loaded in java.awt.image that depend on |
| * libawt and there is no way to call Toolkit.loadLibraries() |
| * directly. -hung |
| */ |
| private static boolean loaded = false; |
| static void loadLibraries() { |
| if (!loaded) { |
| java.security.AccessController.doPrivileged( |
| new java.security.PrivilegedAction<Void>() { |
| public Void run() { |
| System.loadLibrary("awt"); |
| return null; |
| } |
| }); |
| loaded = true; |
| } |
| } |
| |
| static { |
| AWTAccessor.setToolkitAccessor( |
| new AWTAccessor.ToolkitAccessor() { |
| @Override |
| public void setPlatformResources(ResourceBundle bundle) { |
| Toolkit.setPlatformResources(bundle); |
| } |
| }); |
| |
| java.security.AccessController.doPrivileged( |
| new java.security.PrivilegedAction<Void>() { |
| public Void run() { |
| try { |
| resources = |
| ResourceBundle.getBundle("sun.awt.resources.awt", |
| CoreResourceBundleControl.getRBControlInstance()); |
| } catch (MissingResourceException e) { |
| // No resource file; defaults will be used. |
| } |
| return null; |
| } |
| }); |
| |
| // ensure that the proper libraries are loaded |
| loadLibraries(); |
| initAssistiveTechnologies(); |
| if (!GraphicsEnvironment.isHeadless()) { |
| initIDs(); |
| } |
| } |
| |
| /** |
| * 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) { |
| // first try platform specific bundle |
| if (platformResources != null) { |
| try { |
| return platformResources.getString(key); |
| } |
| catch (MissingResourceException e) {} |
| } |
| |
| // then shared one |
| if (resources != null) { |
| try { |
| return resources.getString(key); |
| } |
| catch (MissingResourceException e) {} |
| } |
| |
| return defaultValue; |
| } |
| |
| /** |
| * 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. |
| * |
| * <p> If there is a security manager then its |
| * {@link SecurityManager#checkPermission checkPermission} method |
| * is called to check {@code AWTPermission("accessEventQueue")}. |
| * |
| * @return the <code>EventQueue</code> object |
| * @throws SecurityException |
| * if a security manager is set and it denies access to |
| * the {@code EventQueue} |
| * @see java.awt.AWTPermission |
| */ |
| public final EventQueue getSystemEventQueue() { |
| SecurityManager security = System.getSecurityManager(); |
| if (security != null) { |
| security.checkPermission(AWTPermissions.CHECK_AWT_EVENTQUEUE_PERMISSION); |
| } |
| return getSystemEventQueueImpl(); |
| } |
| |
| /** |
| * Gets the application's or applet's <code>EventQueue</code> |
| * instance, without checking access. For security reasons, |
| * this can only be called from a <code>Toolkit</code> subclass. |
| * @return the <code>EventQueue</code> object |
| */ |
| protected abstract EventQueue getSystemEventQueueImpl(); |
| |
| /* Accessor method for use by AWT package routines. */ |
| static EventQueue getEventQueue() { |
| return getDefaultToolkit().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 <T extends DragGestureRecognizer> T |
| createDragGestureRecognizer(Class<T> abstractRecognizerClass, |
| DragSource ds, Component c, int srcActions, |
| DragGestureListener dgl) |
| { |
| return null; |
| } |
| |
| /** |
| * 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. |
| * For more information on desktop properties supported by the AWT see |
| * <a href="doc-files/DesktopProperties.html">AWT Desktop Properties</a>. |
| */ |
| public final synchronized Object getDesktopProperty(String propertyName) { |
| // This is a workaround for headless toolkits. It would be |
| // better to override this method but it is declared final. |
| // "this instanceof" syntax defeats polymorphism. |
| // --mm, 03/03/00 |
| if (this instanceof HeadlessToolkit) { |
| return ((HeadlessToolkit)this).getUnderlyingToolkit() |
| .getDesktopProperty(propertyName); |
| } |
| |
| if (desktopProperties.isEmpty()) { |
| initializeDesktopProperties(); |
| } |
| |
| Object value; |
| |
| // This property should never be cached |
| if (propertyName.equals("awt.dynamicLayoutSupported")) { |
| return getDefaultToolkit().lazilyLoadDesktopProperty(propertyName); |
| } |
| |
| value = desktopProperties.get(propertyName); |
| |
| if (value == null) { |
| value = lazilyLoadDesktopProperty(propertyName); |
| |
| if (value != null) { |
| setDesktopProperty(propertyName, value); |
| } |
| } |
| |
| /* for property "awt.font.desktophints" */ |
| if (value instanceof RenderingHints) { |
| value = ((RenderingHints)value).clone(); |
| } |
| |
| return value; |
| } |
| |
| /** |
| * 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) { |
| // This is a workaround for headless toolkits. It would be |
| // better to override this method but it is declared final. |
| // "this instanceof" syntax defeats polymorphism. |
| // --mm, 03/03/00 |
| if (this instanceof HeadlessToolkit) { |
| ((HeadlessToolkit)this).getUnderlyingToolkit() |
| .setDesktopProperty(name, newValue); |
| return; |
| } |
| Object oldValue; |
| |
| synchronized (this) { |
| oldValue = desktopProperties.get(name); |
| desktopProperties.put(name, newValue); |
| } |
| |
| // Don't fire change event if old and new values are null. |
| // It helps to avoid recursive resending of WM_THEMECHANGED |
| if (oldValue != null || newValue != null) { |
| desktopPropsSupport.firePropertyChange(name, oldValue, newValue); |
| } |
| } |
| |
| /** |
| * an opportunity to lazily evaluate desktop property values. |
| */ |
| protected Object lazilyLoadDesktopProperty(String name) { |
| return null; |
| } |
| |
| /** |
| * initializeDesktopProperties |
| */ |
| protected void initializeDesktopProperties() { |
| } |
| |
| /** |
| * Adds the specified property change listener for the named desktop |
| * property. When a {@link java.beans.PropertyChangeListenerProxy} object is added, |
| * its property name is ignored, and the wrapped listener is added. |
| * If {@code name} is {@code null} or {@code pcl} is {@code 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 |
| * @see PropertyChangeSupport#addPropertyChangeListener(String, |
| PropertyChangeListener) |
| * @since 1.2 |
| */ |
| public void addPropertyChangeListener(String name, PropertyChangeListener pcl) { |
| desktopPropsSupport.addPropertyChangeListener(name, pcl); |
| } |
| |
| /** |
| * Removes the specified property change listener for the named |
| * desktop property. When a {@link java.beans.PropertyChangeListenerProxy} object |
| * is removed, its property name is ignored, and |
| * the wrapped listener is removed. |
| * If {@code name} is {@code null} or {@code pcl} is {@code 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 |
| * @see PropertyChangeSupport#removePropertyChangeListener(String, |
| PropertyChangeListener) |
| * @since 1.2 |
| */ |
| public void removePropertyChangeListener(String name, PropertyChangeListener pcl) { |
| desktopPropsSupport.removePropertyChangeListener(name, pcl); |
| } |
| |
| /** |
| * Returns an array of all the property change listeners |
| * registered on this toolkit. The returned array |
| * contains {@link java.beans.PropertyChangeListenerProxy} objects |
| * that associate listeners with the names of desktop properties. |
| * |
| * @return all of this toolkit's {@link PropertyChangeListener} |
| * objects wrapped in {@code java.beans.PropertyChangeListenerProxy} objects |
| * or an empty array if no listeners are added |
| * |
| * @see PropertyChangeSupport#getPropertyChangeListeners() |
| * @since 1.4 |
| */ |
| public PropertyChangeListener[] getPropertyChangeListeners() { |
| return desktopPropsSupport.getPropertyChangeListeners(); |
| } |
| |
| /** |
| * Returns an array of all property change listeners |
| * associated with the specified name of a desktop property. |
| * |
| * @param propertyName the named property |
| * @return all of the {@code PropertyChangeListener} objects |
| * associated with the specified name of a desktop property |
| * or an empty array if no such listeners are added |
| * |
| * @see PropertyChangeSupport#getPropertyChangeListeners(String) |
| * @since 1.4 |
| */ |
| public PropertyChangeListener[] getPropertyChangeListeners(String propertyName) { |
| return desktopPropsSupport.getPropertyChangeListeners(propertyName); |
| } |
| |
| protected final Map<String,Object> desktopProperties = |
| new HashMap<String,Object>(); |
| protected final PropertyChangeSupport desktopPropsSupport = |
| Toolkit.createPropertyChangeSupport(this); |
| |
| /** |
| * Returns whether the always-on-top mode is supported by this toolkit. |
| * To detect whether the always-on-top mode is supported for a |
| * particular Window, use {@link Window#isAlwaysOnTopSupported}. |
| * @return <code>true</code>, if current toolkit supports the always-on-top mode, |
| * otherwise returns <code>false</code> |
| * @see Window#isAlwaysOnTopSupported |
| * @see Window#setAlwaysOnTop(boolean) |
| * @since 1.6 |
| */ |
| public boolean isAlwaysOnTopSupported() { |
| return true; |
| } |
| |
| /** |
| * Returns whether the given modality type is supported by this toolkit. If |
| * a dialog with unsupported modality type is created, then |
| * <code>Dialog.ModalityType.MODELESS</code> is used instead. |
| * |
| * @param modalityType modality type to be checked for support by this toolkit |
| * |
| * @return <code>true</code>, if current toolkit supports given modality |
| * type, <code>false</code> otherwise |
| * |
| * @see java.awt.Dialog.ModalityType |
| * @see java.awt.Dialog#getModalityType |
| * @see java.awt.Dialog#setModalityType |
| * |
| * @since 1.6 |
| */ |
| public abstract boolean isModalityTypeSupported(Dialog.ModalityType modalityType); |
| |
| /** |
| * Returns whether the given modal exclusion type is supported by this |
| * toolkit. If an unsupported modal exclusion type property is set on a window, |
| * then <code>Dialog.ModalExclusionType.NO_EXCLUDE</code> is used instead. |
| * |
| * @param modalExclusionType modal exclusion type to be checked for support by this toolkit |
| * |
| * @return <code>true</code>, if current toolkit supports given modal exclusion |
| * type, <code>false</code> otherwise |
| * |
| * @see java.awt.Dialog.ModalExclusionType |
| * @see java.awt.Window#getModalExclusionType |
| * @see java.awt.Window#setModalExclusionType |
| * |
| * @since 1.6 |
| */ |
| public abstract boolean isModalExclusionTypeSupported(Dialog.ModalExclusionType modalExclusionType); |
| |
| // 8014718: logging has been removed from SunToolkit |
| |
| private static final int LONG_BITS = 64; |
| private int[] calls = new int[LONG_BITS]; |
| private static volatile long enabledOnToolkitMask; |
| private AWTEventListener eventListener = null; |
| private WeakHashMap<AWTEventListener, SelectiveAWTEventListener> listener2SelectiveListener = new WeakHashMap<>(); |
| |
| /* |
| * Extracts a "pure" AWTEventListener from a AWTEventListenerProxy, |
| * if the listener is proxied. |
| */ |
| static private AWTEventListener deProxyAWTEventListener(AWTEventListener l) |
| { |
| AWTEventListener localL = l; |
| |
| if (localL == null) { |
| return null; |
| } |
| // if user passed in a AWTEventListenerProxy object, extract |
| // the listener |
| if (l instanceof AWTEventListenerProxy) { |
| localL = ((AWTEventListenerProxy)l).getListener(); |
| } |
| return localL; |
| } |
| |
| /** |
| * Adds an AWTEventListener to receive all AWTEvents dispatched |
| * system-wide that conform to the given <code>eventMask</code>. |
| * <p> |
| * First, if there is a security manager, its <code>checkPermission</code> |
| * method is called with an |
| * <code>AWTPermission("listenToAllAWTEvents")</code> permission. |
| * This may result in a SecurityException. |
| * <p> |
| * <code>eventMask</code> is a bitmask of event types to receive. |
| * It is constructed by bitwise OR-ing together the event masks |
| * defined in <code>AWTEvent</code>. |
| * <p> |
| * 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 |
| * <code>checkPermission</code> method doesn't allow the operation. |
| * @see #removeAWTEventListener |
| * @see #getAWTEventListeners |
| * @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) { |
| AWTEventListener localL = deProxyAWTEventListener(listener); |
| |
| if (localL == null) { |
| return; |
| } |
| SecurityManager security = System.getSecurityManager(); |
| if (security != null) { |
| security.checkPermission(AWTPermissions.ALL_AWT_EVENTS_PERMISSION); |
| } |
| synchronized (this) { |
| SelectiveAWTEventListener selectiveListener = |
| listener2SelectiveListener.get(localL); |
| |
| if (selectiveListener == null) { |
| // Create a new selectiveListener. |
| selectiveListener = new SelectiveAWTEventListener(localL, |
| eventMask); |
| listener2SelectiveListener.put(localL, selectiveListener); |
| eventListener = ToolkitEventMulticaster.add(eventListener, |
| selectiveListener); |
| } |
| // OR the eventMask into the selectiveListener's event mask. |
| selectiveListener.orEventMasks(eventMask); |
| |
| enabledOnToolkitMask |= eventMask; |
| |
| long mask = eventMask; |
| for (int i=0; i<LONG_BITS; i++) { |
| // If no bits are set, break out of loop. |
| if (mask == 0) { |
| break; |
| } |
| if ((mask & 1L) != 0) { // Always test bit 0. |
| calls[i]++; |
| } |
| mask >>>= 1; // Right shift, fill with zeros on left. |
| } |
| } |
| } |
| |
| /** |
| * Removes an AWTEventListener from receiving dispatched AWTEvents. |
| * <p> |
| * First, if there is a security manager, its <code>checkPermission</code> |
| * method is called with an |
| * <code>AWTPermission("listenToAllAWTEvents")</code> permission. |
| * This may result in a SecurityException. |
| * <p> |
| * 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 |
| * <code>checkPermission</code> method doesn't allow the operation. |
| * @see #addAWTEventListener |
| * @see #getAWTEventListeners |
| * @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) { |
| AWTEventListener localL = deProxyAWTEventListener(listener); |
| |
| if (listener == null) { |
| return; |
| } |
| SecurityManager security = System.getSecurityManager(); |
| if (security != null) { |
| security.checkPermission(AWTPermissions.ALL_AWT_EVENTS_PERMISSION); |
| } |
| |
| synchronized (this) { |
| SelectiveAWTEventListener selectiveListener = |
| listener2SelectiveListener.get(localL); |
| |
| if (selectiveListener != null) { |
| listener2SelectiveListener.remove(localL); |
| int[] listenerCalls = selectiveListener.getCalls(); |
| for (int i=0; i<LONG_BITS; i++) { |
| calls[i] -= listenerCalls[i]; |
| assert calls[i] >= 0: "Negative Listeners count"; |
| |
| if (calls[i] == 0) { |
| enabledOnToolkitMask &= ~(1L<<i); |
| } |
| } |
| } |
| eventListener = ToolkitEventMulticaster.remove(eventListener, |
| (selectiveListener == null) ? localL : selectiveListener); |
| } |
| } |
| |
| static boolean enabledOnToolkit(long eventMask) { |
| return (enabledOnToolkitMask & eventMask) != 0; |
| } |
| |
| synchronized int countAWTEventListeners(long eventMask) { |
| int ci = 0; |
| for (; eventMask != 0; eventMask >>>= 1, ci++) { |
| } |
| ci--; |
| return calls[ci]; |
| } |
| /** |
| * Returns an array of all the <code>AWTEventListener</code>s |
| * registered on this toolkit. |
| * If there is a security manager, its {@code checkPermission} |
| * method is called with an |
| * {@code AWTPermission("listenToAllAWTEvents")} permission. |
| * This may result in a SecurityException. |
| * Listeners can be returned |
| * within <code>AWTEventListenerProxy</code> 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 <code>AWTEventListener</code>s or an empty |
| * array if no listeners are currently registered |
| * @throws SecurityException |
| * if a security manager exists and its |
| * <code>checkPermission</code> 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() { |
| SecurityManager security = System.getSecurityManager(); |
| if (security != null) { |
| security.checkPermission(AWTPermissions.ALL_AWT_EVENTS_PERMISSION); |
| } |
| synchronized (this) { |
| EventListener[] la = ToolkitEventMulticaster.getListeners(eventListener,AWTEventListener.class); |
| |
| AWTEventListener[] ret = new AWTEventListener[la.length]; |
| for (int i = 0; i < la.length; i++) { |
| SelectiveAWTEventListener sael = (SelectiveAWTEventListener)la[i]; |
| AWTEventListener tempL = sael.getListener(); |
| //assert tempL is not an AWTEventListenerProxy - we should |
| // have weeded them all out |
| // don't want to wrap a proxy inside a proxy |
| ret[i] = new AWTEventListenerProxy(sael.getEventMask(), tempL); |
| } |
| return ret; |
| } |
| } |
| |
| /** |
| * Returns an array of all the <code>AWTEventListener</code>s |
| * registered on this toolkit which listen to all of the event |
| * types specified in the {@code eventMask} argument. |
| * If there is a security manager, its {@code checkPermission} |
| * method is called with an |
| * {@code AWTPermission("listenToAllAWTEvents")} permission. |
| * This may result in a SecurityException. |
| * Listeners can be returned |
| * within <code>AWTEventListenerProxy</code> 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 <code>AWTEventListener</code>s 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 |
| * <code>checkPermission</code> 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) { |
| SecurityManager security = System.getSecurityManager(); |
| if (security != null) { |
| security.checkPermission(AWTPermissions.ALL_AWT_EVENTS_PERMISSION); |
| } |
| synchronized (this) { |
| EventListener[] la = ToolkitEventMulticaster.getListeners(eventListener,AWTEventListener.class); |
| |
| java.util.List<AWTEventListenerProxy> list = new ArrayList<>(la.length); |
| |
| for (int i = 0; i < la.length; i++) { |
| SelectiveAWTEventListener sael = (SelectiveAWTEventListener)la[i]; |
| if ((sael.getEventMask() & eventMask) == eventMask) { |
| //AWTEventListener tempL = sael.getListener(); |
| list.add(new AWTEventListenerProxy(sael.getEventMask(), |
| sael.getListener())); |
| } |
| } |
| return list.toArray(new AWTEventListener[0]); |
| } |
| } |
| |
| /* |
| * This method notifies any AWTEventListeners that an event |
| * is about to be dispatched. |
| * |
| * @param theEvent the event which will be dispatched. |
| */ |
| void notifyAWTEventListeners(AWTEvent theEvent) { |
| // This is a workaround for headless toolkits. It would be |
| // better to override this method but it is declared package private. |
| // "this instanceof" syntax defeats polymorphism. |
| // --mm, 03/03/00 |
| if (this instanceof HeadlessToolkit) { |
| ((HeadlessToolkit)this).getUnderlyingToolkit() |
| .notifyAWTEventListeners(theEvent); |
| return; |
| } |
| |
| AWTEventListener eventListener = this.eventListener; |
| if (eventListener != null) { |
| eventListener.eventDispatched(theEvent); |
| } |
| } |
| |
| static private class ToolkitEventMulticaster extends AWTEventMulticaster |
| implements AWTEventListener { |
| // Implementation cloned from AWTEventMulticaster. |
| |
| ToolkitEventMulticaster(AWTEventListener a, AWTEventListener b) { |
| super(a, b); |
| } |
| |
| static AWTEventListener add(AWTEventListener a, |
| AWTEventListener b) { |
| if (a == null) return b; |
| if (b == null) return a; |
| return new ToolkitEventMulticaster(a, b); |
| } |
| |
| static AWTEventListener remove(AWTEventListener l, |
| AWTEventListener oldl) { |
| return (AWTEventListener) removeInternal(l, oldl); |
| } |
| |
| // #4178589: must overload remove(EventListener) to call our add() |
| // instead of the static addInternal() so we allocate a |
| // ToolkitEventMulticaster instead of an AWTEventMulticaster. |
| // Note: this method is called by AWTEventListener.removeInternal(), |
| // so its method signature must match AWTEventListener.remove(). |
| protected EventListener remove(EventListener oldl) { |
| if (oldl == a) return b; |
| if (oldl == b) return a; |
| AWTEventListener a2 = (AWTEventListener)removeInternal(a, oldl); |
| AWTEventListener b2 = (AWTEventListener)removeInternal(b, oldl); |
| if (a2 == a && b2 == b) { |
| return this; // it's not here |
| } |
| return add(a2, b2); |
| } |
| |
| public void eventDispatched(AWTEvent event) { |
| ((AWTEventListener)a).eventDispatched(event); |
| ((AWTEventListener)b).eventDispatched(event); |
| } |
| } |
| |
| private class SelectiveAWTEventListener implements AWTEventListener { |
| AWTEventListener listener; |
| private long eventMask; |
| // This array contains the number of times to call the eventlistener |
| // for each event type. |
| int[] calls = new int[Toolkit.LONG_BITS]; |
| |
| public AWTEventListener getListener() {return listener;} |
| public long getEventMask() {return eventMask;} |
| public int[] getCalls() {return calls;} |
| |
| public void orEventMasks(long mask) { |
| eventMask |= mask; |
| // For each event bit set in mask, increment its call count. |
| for (int i=0; i<Toolkit.LONG_BITS; i++) { |
| // If no bits are set, break out of loop. |
| if (mask == 0) { |
| break; |
| } |
| if ((mask & 1L) != 0) { // Always test bit 0. |
| calls[i]++; |
| } |
| mask >>>= 1; // Right shift, fill with zeros on left. |
| } |
| } |
| |
| SelectiveAWTEventListener(AWTEventListener l, long mask) { |
| listener = l; |
| eventMask = mask; |
| } |
| |
| public void eventDispatched(AWTEvent event) { |
| long eventBit = 0; // Used to save the bit of the event type. |
| if (((eventBit = eventMask & AWTEvent.COMPONENT_EVENT_MASK) != 0 && |
| event.id >= ComponentEvent.COMPONENT_FIRST && |
| event.id <= ComponentEvent.COMPONENT_LAST) |
| || ((eventBit = eventMask & AWTEvent.CONTAINER_EVENT_MASK) != 0 && |
| event.id >= ContainerEvent.CONTAINER_FIRST && |
| event.id <= ContainerEvent.CONTAINER_LAST) |
| || ((eventBit = eventMask & AWTEvent.FOCUS_EVENT_MASK) != 0 && |
| event.id >= FocusEvent.FOCUS_FIRST && |
| event.id <= FocusEvent.FOCUS_LAST) |
| || ((eventBit = eventMask & AWTEvent.KEY_EVENT_MASK) != 0 && |
| event.id >= KeyEvent.KEY_FIRST && |
| event.id <= KeyEvent.KEY_LAST) |
| || ((eventBit = eventMask & AWTEvent.MOUSE_WHEEL_EVENT_MASK) != 0 && |
| event.id == MouseEvent.MOUSE_WHEEL) |
| || ((eventBit = eventMask & AWTEvent.MOUSE_MOTION_EVENT_MASK) != 0 && |
| (event.id == MouseEvent.MOUSE_MOVED || |
| event.id == MouseEvent.MOUSE_DRAGGED)) |
| || ((eventBit = eventMask & AWTEvent.MOUSE_EVENT_MASK) != 0 && |
| event.id != MouseEvent.MOUSE_MOVED && |
| event.id != MouseEvent.MOUSE_DRAGGED && |
| event.id != MouseEvent.MOUSE_WHEEL && |
| event.id >= MouseEvent.MOUSE_FIRST && |
| event.id <= MouseEvent.MOUSE_LAST) |
| || ((eventBit = eventMask & AWTEvent.WINDOW_EVENT_MASK) != 0 && |
| (event.id >= WindowEvent.WINDOW_FIRST && |
| event.id <= WindowEvent.WINDOW_LAST)) |
| || ((eventBit = eventMask & AWTEvent.ACTION_EVENT_MASK) != 0 && |
| event.id >= ActionEvent.ACTION_FIRST && |
| event.id <= ActionEvent.ACTION_LAST) |
| || ((eventBit = eventMask & AWTEvent.ADJUSTMENT_EVENT_MASK) != 0 && |
| event.id >= AdjustmentEvent.ADJUSTMENT_FIRST && |
| event.id <= AdjustmentEvent.ADJUSTMENT_LAST) |
| || ((eventBit = eventMask & AWTEvent.ITEM_EVENT_MASK) != 0 && |
| event.id >= ItemEvent.ITEM_FIRST && |
| event.id <= ItemEvent.ITEM_LAST) |
| || ((eventBit = eventMask & AWTEvent.TEXT_EVENT_MASK) != 0 && |
| event.id >= TextEvent.TEXT_FIRST && |
| event.id <= TextEvent.TEXT_LAST) |
| || ((eventBit = eventMask & AWTEvent.INPUT_METHOD_EVENT_MASK) != 0 && |
| event.id >= InputMethodEvent.INPUT_METHOD_FIRST && |
| event.id <= InputMethodEvent.INPUT_METHOD_LAST) |
| || ((eventBit = eventMask & AWTEvent.PAINT_EVENT_MASK) != 0 && |
| event.id >= PaintEvent.PAINT_FIRST && |
| event.id <= PaintEvent.PAINT_LAST) |
| || ((eventBit = eventMask & AWTEvent.INVOCATION_EVENT_MASK) != 0 && |
| event.id >= InvocationEvent.INVOCATION_FIRST && |
| event.id <= InvocationEvent.INVOCATION_LAST) |
| || ((eventBit = eventMask & AWTEvent.HIERARCHY_EVENT_MASK) != 0 && |
| event.id == HierarchyEvent.HIERARCHY_CHANGED) |
| || ((eventBit = eventMask & AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK) != 0 && |
| (event.id == HierarchyEvent.ANCESTOR_MOVED || |
| event.id == HierarchyEvent.ANCESTOR_RESIZED)) |
| || ((eventBit = eventMask & AWTEvent.WINDOW_STATE_EVENT_MASK) != 0 && |
| event.id == WindowEvent.WINDOW_STATE_CHANGED) |
| || ((eventBit = eventMask & AWTEvent.WINDOW_FOCUS_EVENT_MASK) != 0 && |
| (event.id == WindowEvent.WINDOW_GAINED_FOCUS || |
| event.id == WindowEvent.WINDOW_LOST_FOCUS)) |
| || ((eventBit = eventMask & sun.awt.SunToolkit.GRAB_EVENT_MASK) != 0 && |
| (event instanceof sun.awt.UngrabEvent))) { |
| // Get the index of the call count for this event type. |
| // Instead of using Math.log(...) we will calculate it with |
| // bit shifts. That's what previous implementation looked like: |
| // |
| // int ci = (int) (Math.log(eventBit)/Math.log(2)); |
| int ci = 0; |
| for (long eMask = eventBit; eMask != 0; eMask >>>= 1, ci++) { |
| } |
| ci--; |
| // Call the listener as many times as it was added for this |
| // event type. |
| for (int i=0; i<calls[ci]; i++) { |
| listener.eventDispatched(event); |
| } |
| } |
| } |
| } |
| |
| /** |
| * 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 <code>null</code> |
| * @exception HeadlessException if |
| * <code>GraphicsEnvironment.isHeadless</code> returns true |
| * @see java.awt.GraphicsEnvironment#isHeadless |
| * @since 1.3 |
| */ |
| public abstract Map<java.awt.font.TextAttribute,?> |
| mapInputMethodHighlight(InputMethodHighlight highlight) |
| throws HeadlessException; |
| |
| private static PropertyChangeSupport createPropertyChangeSupport(Toolkit toolkit) { |
| if (toolkit instanceof SunToolkit || toolkit instanceof HeadlessToolkit) { |
| return new DesktopPropertyChangeSupport(toolkit); |
| } else { |
| return new PropertyChangeSupport(toolkit); |
| } |
| } |
| |
| @SuppressWarnings("serial") |
| private static class DesktopPropertyChangeSupport extends PropertyChangeSupport { |
| |
| private static final StringBuilder PROP_CHANGE_SUPPORT_KEY = |
| new StringBuilder("desktop property change support key"); |
| private final Object source; |
| |
| public DesktopPropertyChangeSupport(Object sourceBean) { |
| super(sourceBean); |
| source = sourceBean; |
| } |
| |
| @Override |
| public synchronized void addPropertyChangeListener( |
| String propertyName, |
| PropertyChangeListener listener) |
| { |
| PropertyChangeSupport pcs = (PropertyChangeSupport) |
| AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); |
| if (null == pcs) { |
| pcs = new PropertyChangeSupport(source); |
| AppContext.getAppContext().put(PROP_CHANGE_SUPPORT_KEY, pcs); |
| } |
| pcs.addPropertyChangeListener(propertyName, listener); |
| } |
| |
| @Override |
| public synchronized void removePropertyChangeListener( |
| String propertyName, |
| PropertyChangeListener listener) |
| { |
| PropertyChangeSupport pcs = (PropertyChangeSupport) |
| AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); |
| if (null != pcs) { |
| pcs.removePropertyChangeListener(propertyName, listener); |
| } |
| } |
| |
| @Override |
| public synchronized PropertyChangeListener[] getPropertyChangeListeners() |
| { |
| PropertyChangeSupport pcs = (PropertyChangeSupport) |
| AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); |
| if (null != pcs) { |
| return pcs.getPropertyChangeListeners(); |
| } else { |
| return new PropertyChangeListener[0]; |
| } |
| } |
| |
| @Override |
| public synchronized PropertyChangeListener[] getPropertyChangeListeners(String propertyName) |
| { |
| PropertyChangeSupport pcs = (PropertyChangeSupport) |
| AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); |
| if (null != pcs) { |
| return pcs.getPropertyChangeListeners(propertyName); |
| } else { |
| return new PropertyChangeListener[0]; |
| } |
| } |
| |
| @Override |
| public synchronized void addPropertyChangeListener(PropertyChangeListener listener) { |
| PropertyChangeSupport pcs = (PropertyChangeSupport) |
| AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); |
| if (null == pcs) { |
| pcs = new PropertyChangeSupport(source); |
| AppContext.getAppContext().put(PROP_CHANGE_SUPPORT_KEY, pcs); |
| } |
| pcs.addPropertyChangeListener(listener); |
| } |
| |
| @Override |
| public synchronized void removePropertyChangeListener(PropertyChangeListener listener) { |
| PropertyChangeSupport pcs = (PropertyChangeSupport) |
| AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); |
| if (null != pcs) { |
| pcs.removePropertyChangeListener(listener); |
| } |
| } |
| |
| /* |
| * we do expect that all other fireXXX() methods of java.beans.PropertyChangeSupport |
| * use this method. If this will be changed we will need to change this class. |
| */ |
| @Override |
| public void firePropertyChange(final PropertyChangeEvent evt) { |
| Object oldValue = evt.getOldValue(); |
| Object newValue = evt.getNewValue(); |
| String propertyName = evt.getPropertyName(); |
| if (oldValue != null && newValue != null && oldValue.equals(newValue)) { |
| return; |
| } |
| Runnable updater = new Runnable() { |
| public void run() { |
| PropertyChangeSupport pcs = (PropertyChangeSupport) |
| AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY); |
| if (null != pcs) { |
| pcs.firePropertyChange(evt); |
| } |
| } |
| }; |
| final AppContext currentAppContext = AppContext.getAppContext(); |
| for (AppContext appContext : AppContext.getAppContexts()) { |
| if (null == appContext || appContext.isDisposed()) { |
| continue; |
| } |
| if (currentAppContext == appContext) { |
| updater.run(); |
| } else { |
| final PeerEvent e = new PeerEvent(source, updater, PeerEvent.ULTIMATE_PRIORITY_EVENT); |
| SunToolkit.postEvent(appContext, e); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Reports whether events from extra mouse buttons are allowed to be processed and posted into |
| * {@code EventQueue}. |
| * <br> |
| * To change the returned value it is necessary to set the {@code sun.awt.enableExtraMouseButtons} |
| * property before the {@code Toolkit} class initialization. This setting could be done on the application |
| * startup by the following command: |
| * <pre> |
| * java -Dsun.awt.enableExtraMouseButtons=false Application |
| * </pre> |
| * Alternatively, the property could be set in the application by using the following code: |
| * <pre> |
| * System.setProperty("sun.awt.enableExtraMouseButtons", "true"); |
| * </pre> |
| * before the {@code Toolkit} class initialization. |
| * If not set by the time of the {@code Toolkit} class initialization, this property will be |
| * initialized with {@code true}. |
| * Changing this value after the {@code Toolkit} class initialization will have no effect. |
| * <p> |
| * @exception HeadlessException if GraphicsEnvironment.isHeadless() returns true |
| * @return {@code true} if events from extra mouse buttons are allowed to be processed and posted; |
| * {@code false} otherwise |
| * @see System#getProperty(String propertyName) |
| * @see System#setProperty(String propertyName, String value) |
| * @see java.awt.EventQueue |
| * @since 1.7 |
| */ |
| public boolean areExtraMouseButtonsEnabled() throws HeadlessException { |
| GraphicsEnvironment.checkHeadless(); |
| |
| return Toolkit.getDefaultToolkit().areExtraMouseButtonsEnabled(); |
| } |
| } |
