mirror/deep-c-rsc
1
0
Fork 0
mirror of https://github.com/2003scape/deep-c-rsc.git synced 2024-03-22 05:49:51 -04:00
Code Issues Projects Releases Wiki Activity
deep-c-rsc/JCGO/sunawt/fix/javax/swing/JFrame.java

837 lines
29 KiB
Java
Raw Normal View History

add jcgo
2021-07-16 17:12:20 -05:00
/*
* This file is modified by Ivan Maidanski <ivmai@ivmaisoft.com>
* Project name: JCGO-SUNAWT (http://www.ivmaisoft.com/jcgo/)
*/
/*
* @(#)JFrame.java 1.95 03/01/28
*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package javax.swing;
import java.awt.*;
import java.awt.event.*;
import java.beans.PropertyChangeListener;
import java.util.Locale;
import java.util.Vector;
import java.io.Serializable;
import javax.accessibility.*;
/**
* An extended version of <code>java.awt.Frame</code> that adds support for
* the JFC/Swing component architecture.
* You can find task-oriented documentation about using <code>JFrame</code>
* in <em>The Java Tutorial</em>, in the section
* <a
href="http://java.sun.com/docs/books/tutorial/uiswing/components/frame.html">How to Make Frames</a>.
*
* <p>
* The <code>JFrame</code> class is slightly incompatible with <code>Frame</code>.
* Like all other JFC/Swing top-level containers,
* a <code>JFrame</code> contains a <code>JRootPane</code> as its only child.
* The <b>content pane</b> provided by the root pane should,
* as a rule, contain
* all the non-menu components displayed by the <code>JFrame</code>.
* This is different from the AWT <code>Frame</code> case.
* For example, to add a child to
* an AWT frame you'd write:
* <pre>
* frame.add(child);
* </pre>
* However using <code>JFrame</code> you need to add the child
* to the <code>JFrame's</code> content pane
* instead:
* <pre>
* frame.getContentPane().add(child);
* </pre>
* The same is true for setting layout managers, removing components,
* listing children, and so on. All these methods should normally be sent to
* the content pane instead of the JFrame itself. The content pane will
* always be non-null. Attempting to set it to null will cause the JFrame
* to throw an exception. The default content pane will have a BorderLayout
* manager set on it.
* <p>
* Unlike a <code>Frame</code>, a <code>JFrame</code> has some notion of how to
* respond when the user attempts to close the window. The default behavior
* is to simply hide the JFrame when the user closes the window. To change the
* default behavior, you invoke the method
* {@link #setDefaultCloseOperation}.
* To make the <code>JFrame</code> behave the same as a <code>Frame</code>
* instance, use
* <code>setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE)</code>.
* <p>
* For more information on content panes
* and other features that root panes provide,
* see <a
href="http://java.sun.com/docs/books/tutorial/uiswing/components/toplevel.html">Using Top-Level Containers</a> in <em>The Java Tutorial</em>.
* <p>
* In a multi-screen environment, you can create a <code>JFrame</code>
* on a different screen device. See {@link java.awt.Frame} for more
* information.
* <p>
* For the keyboard keys used by this component in the standard Look and
* Feel (L&F) renditions, see the
* <a href="doc-files/Key-Index.html#JFrame"><code>JFrame</code> key assignments</a>.
* <p>
* <strong>Warning:</strong>
* Serialized objects of this class will not be compatible with
* future Swing releases. The current serialization support is
* appropriate for short term storage or RMI between applications running
* the same version of Swing. As of 1.4, support for long term storage
* of all JavaBeans<sup><font size="-2">TM</font></sup>
* has been added to the <code>java.beans</code> package.
* Please see {@link java.beans.XMLEncoder}.
*
* @see JRootPane
* @see #setDefaultCloseOperation
* @see java.awt.event.WindowListener#windowClosing
*
* @beaninfo
* attribute: isContainer true
* attribute: containerDelegate getContentPane
* description: A toplevel window which can be minimized to an icon.
*
* @version 1.95 01/28/03
* @author Jeff Dinkins
* @author Georges Saab
* @author David Kloba
*/
public class JFrame extends Frame implements WindowConstants, Accessible, RootPaneContainer
{
/**
* The exit application default window close operation. If a window
* has this set as the close operation and is closed in an applet,
* a <code>SecurityException</code> may be thrown.
* It is recommended you only use this in an application.
* <p>
* @since 1.3
*/
public static final int EXIT_ON_CLOSE = 3;
/**
* Key into the AppContext, used to check if should provide decorations
* by default.
*/
private static final Object defaultLookAndFeelDecoratedKey =
new StringBuffer("JFrame.defaultLookAndFeelDecorated");
private int defaultCloseOperation = HIDE_ON_CLOSE;
/**
* The <code>JRootPane</code> instance that manages the
* <code>contentPane</code>
* and optional <code>menuBar</code> for this frame, as well as the
* <code>glassPane</code>.
*
* @see JRootPane
* @see RootPaneContainer
*/
protected JRootPane rootPane;
/**
* If true then calls to <code>add</code> and <code>setLayout</code>
* will cause an exception to be thrown. The default is false.
*
* @see #isRootPaneCheckingEnabled
* @see #setRootPaneCheckingEnabled
*/
protected boolean rootPaneCheckingEnabled = false;
/**
* Constructs a new frame that is initially invisible.
* <p>
* This constructor sets the component's locale property to the value
* returned by <code>JComponent.getDefaultLocale</code>.
*
* @exception HeadlessException if GraphicsEnvironment.isHeadless()
* returns true.
* @see java.awt.GraphicsEnvironment#isHeadless
* @see Component#setSize
* @see Component#setVisible
* @see JComponent#getDefaultLocale
*/
public JFrame() throws HeadlessException {
super();
frameInit();
}
/**
* Creates a <code>Frame</code> in the specified
* <code>GraphicsConfiguration</code> of
* a screen device and a blank title.
* <p>
* This constructor sets the component's locale property to the value
* returned by <code>JComponent.getDefaultLocale</code>.
*
* @param gc the <code>GraphicsConfiguration</code> that is used
* to construct the new <code>Frame</code>;
* if <code>gc</code> is <code>null</code>, the system
* default <code>GraphicsConfiguration</code> is assumed
* @exception IllegalArgumentException if <code>gc</code> is not from
* a screen device. This exception is always thrown when
* GraphicsEnvironment.isHeadless() returns true.
* @see java.awt.GraphicsEnvironment#isHeadless
* @see JComponent#getDefaultLocale
* @since 1.3
*/
public JFrame(GraphicsConfiguration gc) {
super(gc);
frameInit();
}
/**
* Creates a new, initially invisible <code>Frame</code> with the
* specified title.
* <p>
* This constructor sets the component's locale property to the value
* returned by <code>JComponent.getDefaultLocale</code>.
*
* @param title the title for the frame
* @exception HeadlessException if GraphicsEnvironment.isHeadless()
* returns true.
* @see java.awt.GraphicsEnvironment#isHeadless
* @see Component#setSize
* @see Component#setVisible
* @see JComponent#getDefaultLocale
*/
public JFrame(String title) throws HeadlessException {
super(title);
frameInit();
}
/**
* Creates a <code>JFrame</code> with the specified title and the
* specified <code>GraphicsConfiguration</code> of a screen device.
* <p>
* This constructor sets the component's locale property to the value
* returned by <code>JComponent.getDefaultLocale</code>.
*
* @param title the title to be displayed in the
* frame's border. A <code>null</code> value is treated as
* an empty string, "".
* @param gc the <code>GraphicsConfiguration</code> that is used
* to construct the new <code>JFrame</code> with;
* if <code>gc</code> is <code>null</code>, the system
* default <code>GraphicsConfiguration</code> is assumed
* @exception IllegalArgumentException if <code>gc</code> is not from
* a screen device. This exception is always thrown when
* GraphicsEnvironment.isHeadless() returns true.
* @see java.awt.GraphicsEnvironment#isHeadless
* @see JComponent#getDefaultLocale
* @since 1.3
*/
public JFrame(String title, GraphicsConfiguration gc) {
super(title, gc);
frameInit();
}
/** Called by the constructors to init the <code>JFrame</code> properly. */
protected void frameInit() {
enableEvents(AWTEvent.KEY_EVENT_MASK | AWTEvent.WINDOW_EVENT_MASK);
setLocale( JComponent.getDefaultLocale() );
setRootPane(createRootPane());
setBackground(UIManager.getColor("control"));
setRootPaneCheckingEnabled(true);
if (JFrame.isDefaultLookAndFeelDecorated()) {
boolean supportsWindowDecorations =
UIManager.getLookAndFeel().getSupportsWindowDecorations();
if (supportsWindowDecorations) {
setUndecorated(true);
getRootPane().setWindowDecorationStyle(JRootPane.FRAME);
}
}
setFocusTraversalPolicy(KeyboardFocusManager.
getCurrentKeyboardFocusManager().
getDefaultFocusTraversalPolicy());
}
/**
* Called by the constructor methods to create the default
* <code>rootPane</code>.
*/
protected JRootPane createRootPane() {
return new JRootPane();
}
/**
* Processes window events occurring on this component.
* Hides the window or disposes of it, as specified by the setting
* of the <code>defaultCloseOperation</code> property.
*
* @param e the window event
* @see #setDefaultCloseOperation
* @see java.awt.Window#processWindowEvent
*/
protected void processWindowEvent(WindowEvent e) {
super.processWindowEvent(e);
if (e.getID() == WindowEvent.WINDOW_CLOSING) {
switch(defaultCloseOperation) {
case HIDE_ON_CLOSE:
setVisible(false);
break;
case DISPOSE_ON_CLOSE:
setVisible(false);
dispose();
break;
case DO_NOTHING_ON_CLOSE:
default:
break;
case EXIT_ON_CLOSE:
// This needs to match the checkExit call in
// setDefaultCloseOperation
System.exit(0);
break;
}
}
}
// public void setMenuBar(MenuBar menu) {
// throw new IllegalComponentStateException("Please use setJMenuBar() with JFrame.");
// }
/**
* Sets the operation that will happen by default when
* the user initiates a "close" on this frame.
* You must specify one of the following choices:
* <p>
* <ul>
* <li><code>DO_NOTHING_ON_CLOSE</code>
* (defined in <code>WindowConstants</code>):
* Don't do anything; require the
* program to handle the operation in the <code>windowClosing</code>
* method of a registered <code>WindowListener</code> object.
*
* <li><code>HIDE_ON_CLOSE</code>
* (defined in <code>WindowConstants</code>):
* Automatically hide the frame after
* invoking any registered <code>WindowListener</code>
* objects.
*
* <li><code>DISPOSE_ON_CLOSE</code>
* (defined in <code>WindowConstants</code>):
* Automatically hide and dispose the
* frame after invoking any registered <code>WindowListener</code>
* objects.
*
* <li><code>EXIT_ON_CLOSE</code>
* (defined in <code>JFrame</code>):
* Exit the application using the <code>System</code> <code>exit</code> method.
* Use this only in applications.
* </ul>
* <p>
* The value is set to <code>HIDE_ON_CLOSE</code> by default.
* <p>
* <b>Note</b>: When the last displayable window within the
* Java virtual machine (VM) is disposed of, the VM may
* terminate. See <a href="../../java/awt/doc-files/AWTThreadIssues.html">
* AWT Threading Issues</a> for more information.
*
* @param operation the operation which should be performed when the
* user closes the frame
* @exception IllegalArgumentException if defaultCloseOperation value
* isn't one of the above valid values
* @see #addWindowListener
* @see #getDefaultCloseOperation
* @see WindowConstants
* @throws SecurityException
* if <code>EXIT_ON_CLOSE</code> has been specified and the
* <code>SecurityManager</code> will
* not allow the caller to invoke <code>System.exit</code>
* @see java.lang.Runtime#exit(int)
*
* @beaninfo
* preferred: true
* bound: true
* enum: DO_NOTHING_ON_CLOSE WindowConstants.DO_NOTHING_ON_CLOSE
* HIDE_ON_CLOSE WindowConstants.HIDE_ON_CLOSE
* DISPOSE_ON_CLOSE WindowConstants.DISPOSE_ON_CLOSE
* EXIT_ON_CLOSE WindowConstants.EXIT_ON_CLOSE
* description: The frame's default close operation.
*/
public void setDefaultCloseOperation(int operation) {
if (operation != DO_NOTHING_ON_CLOSE &&
operation != HIDE_ON_CLOSE &&
operation != DISPOSE_ON_CLOSE &&
operation != EXIT_ON_CLOSE) {
throw new IllegalArgumentException("defaultCloseOperation must be one of: DO_NOTHING_ON_CLOSE, HIDE_ON_CLOSE, DISPOSE_ON_CLOSE, or EXIT_ON_CLOSE");
}
if (this.defaultCloseOperation != operation) {
if (operation == EXIT_ON_CLOSE) {
SecurityManager security = System.getSecurityManager();
if (security != null) {
security.checkExit(0);
}
}
int oldValue = this.defaultCloseOperation;
this.defaultCloseOperation = operation;
firePropertyChange("defaultCloseOperation", oldValue, operation);
}
}
/**
* Returns the operation that occurs when the user
* initiates a "close" on this frame.
*
* @return an integer indicating the window-close operation
* @see #setDefaultCloseOperation
*/
public int getDefaultCloseOperation() {
return defaultCloseOperation;
}
/**
* Just calls <code>paint(g)</code>. This method was overridden to
* prevent an unnecessary call to clear the background.
*
* @param g the Graphics context in which to paint
*/
public void update(Graphics g) {
paint(g);
}
/**
* Sets the menubar for this frame.
* @param menubar the menubar being placed in the frame
*
* @see #getJMenuBar
*
* @beaninfo
* hidden: true
* description: The menubar for accessing pulldown menus from this frame.
*/
public void setJMenuBar(JMenuBar menubar) {
getRootPane().setMenuBar(menubar);
}
/**
* Returns the menubar set on this frame.
* @return the menubar for this frame
*
* @see #setJMenuBar
*/
public JMenuBar getJMenuBar() {
return getRootPane().getMenuBar();
}
/**
* Returns whether calls to <code>add</code> and
* <code>setLayout</code> cause an exception to be thrown.
*
* @return true if <code>add</code> and <code>setLayout</code>
* are checked; false otherwise
*
* @see #addImpl
* @see #setLayout
* @see #setRootPaneCheckingEnabled
*/
protected boolean isRootPaneCheckingEnabled() {
return rootPaneCheckingEnabled;
}
/**
* Determines whether calls to <code>add</code> and
* <code>setLayout</code> will cause an exception to be thrown.
*
* @param enabled true if checking is to be
* enabled, which causes the exceptions to be thrown
*
* @see #addImpl
* @see #setLayout
* @see #isRootPaneCheckingEnabled
* @beaninfo
* hidden: true
* description: Whether the add and setLayout methods throw exceptions when invoked.
*/
protected void setRootPaneCheckingEnabled(boolean enabled) {
rootPaneCheckingEnabled = enabled;
}
/**
* Creates a runtime exception with a message like:
* <pre>
* "Do not use JFrame.add() use JFrame.getContentPane().add() instead"
* </pre>
*
* @param op a <code>String</code> indicating the attempted operation;
* in the example above, the operation string is "add"
*/
private Error createRootPaneException(String op) {
String type = getClass().getName();
return new Error(
"Do not use " + type + "." + op + "() use "
+ type + ".getContentPane()." + op + "() instead");
}
/**
* By default, children may not be added directly to this component,
* they must be added to its contentPane instead. For example:
* <pre>
* thisComponent.getContentPane().add(child)
* </pre>
* An attempt to add to directly to this component will cause an
* runtime exception to be thrown. Subclasses can disable this
* behavior.
*
* @param comp the component to be enhanced
* @param constraints the constraints to be respected
* @param index the index
* @exception Error if called with <code>rootPaneChecking</code> true
*
* @see #setRootPaneCheckingEnabled
*/
protected void addImpl(Component comp, Object constraints, int index)
{
if(isRootPaneCheckingEnabled()) {
/* throw createRootPaneException("add"); */
getContentPane().add(comp, constraints, index);
}
else {
super.addImpl(comp, constraints, index);
}
}
/**
* Removes the specified component from this container.
* @param comp the component to be removed
* @see #add
*/
public void remove(Component comp) {
if (comp == rootPane) {
super.remove(comp);
} else {
// Client mistake, but we need to handle it to avoid a
// common object leak in client applications.
getContentPane().remove(comp);
}
}
/**
* By default the layout of this component may not be set,
* the layout of its <code>contentPane</code> should be set instead.
* For example:
* <pre>
* thisComponent.getContentPane().setLayout(new GridLayout(1, 2))
* </pre>
* An attempt to set the layout of this component will cause an
* runtime exception to be thrown. Subclasses can disable this
* behavior.
* @param manager the <code>LayoutManager</code>
* @exception Error if called with <code>rootPaneChecking</code> true
*
* @see #setRootPaneCheckingEnabled
*/
public void setLayout(LayoutManager manager) {
if(isRootPaneCheckingEnabled()) {
/* throw createRootPaneException("setLayout"); */
getContentPane().setLayout(manager);
}
else {
super.setLayout(manager);
}
}
/**
* Returns the <code>rootPane</code> object for this frame.
* @return the <code>rootPane</code> property
*
* @see #setRootPane
* @see RootPaneContainer#getRootPane
*/
public JRootPane getRootPane() {
return rootPane;
}
/**
* Sets the <code>rootPane</code> property.
* This method is called by the constructor.
* @param root the <code>rootPane</code> object for this frame
*
* @see #getRootPane
*
* @beaninfo
* hidden: true
* description: the RootPane object for this frame.
*/
protected void setRootPane(JRootPane root)
{
if(rootPane != null) {
remove(rootPane);
}
rootPane = root;
if(rootPane != null) {
boolean checkingEnabled = isRootPaneCheckingEnabled();
try {
setRootPaneCheckingEnabled(false);
add(rootPane, BorderLayout.CENTER);
}
finally {
setRootPaneCheckingEnabled(checkingEnabled);
}
}
}
/**
* Returns the <code>contentPane</code> object for this frame.
* @return the <code>contentPane</code> property
*
* @see #setContentPane
* @see RootPaneContainer#getContentPane
*/
public Container getContentPane() {
return getRootPane().getContentPane();
}
/**
* Sets the <code>contentPane</code> property.
* This method is called by the constructor.
* <p>
* Swing's painting architecture requires an opaque <code>JComponent</code>
* in the containment hiearchy. This is typically provided by the
* content pane. If you replace the content pane it is recommended you
* replace it with an opaque <code>JComponent</code>.
*
* @param contentPane the <code>contentPane</code> object for this frame
*
* @exception java.awt.IllegalComponentStateException (a runtime
* exception) if the content pane parameter is <code>null</code>
* @see #getContentPane
* @see RootPaneContainer#setContentPane
* @see JRootPane
*
* @beaninfo
* hidden: true
* description: The client area of the frame where child
* components are normally inserted.
*/
public void setContentPane(Container contentPane) {
getRootPane().setContentPane(contentPane);
}
/**
* Returns the <code>layeredPane</code> object for this frame.
* @return the <code>layeredPane</code> property
*
* @see #setLayeredPane
* @see RootPaneContainer#getLayeredPane
*/
public JLayeredPane getLayeredPane() {
return getRootPane().getLayeredPane();
}
/**
* Sets the <code>layeredPane</code> property.
* This method is called by the constructor.
* @param layeredPane the <code>layeredPane</code> object for this frame
*
* @exception java.awt.IllegalComponentStateException (a runtime
* exception) if the layered pane parameter is <code>null</code>
* @see #getLayeredPane
* @see RootPaneContainer#setLayeredPane
*
* @beaninfo
* hidden: true
* description: The pane that holds the various frame layers.
*/
public void setLayeredPane(JLayeredPane layeredPane) {
getRootPane().setLayeredPane(layeredPane);
}
/**
* Returns the <code>glassPane</code> object for this frame.
* @return the <code>glassPane</code> property
*
* @see #setGlassPane
* @see RootPaneContainer#getGlassPane
*/
public Component getGlassPane() {
return getRootPane().getGlassPane();
}
/**
* Sets the <code>glassPane</code> property.
* This method is called by the constructor.
* @param glassPane the <code>glassPane</code> object for this frame
*
* @see #getGlassPane
* @see RootPaneContainer#setGlassPane
*
* @beaninfo
* hidden: true
* description: A transparent pane used for menu rendering.
*/
public void setGlassPane(Component glassPane) {
getRootPane().setGlassPane(glassPane);
}
/**
* Provides a hint as to whether or not newly created <code>JFrame</code>s
* should have their Window decorations (such as borders, widgets to
* close the window, title...) provided by the current look
* and feel. If <code>defaultLookAndFeelDecorated</code> is true,
* the current <code>LookAndFeel</code> supports providing window
* decorations, and the current window manager supports undecorated
* windows, then newly created <code>JFrame</code>s will have their
* Window decorations provided by the current <code>LookAndFeel</code>.
* Otherwise, newly created <code>JFrame</code>s will have their
* Window decorations provided by the current window manager.
* <p>
* You can get the same effect on a single JFrame by doing the following:
* <pre>
* JFrame frame = new JFrame();
* frame.setUndecorated(true);
* frame.getRootPane().setWindowDecorationStyle(JRootPane.FRAME);
* </pre>
*
* @param defaultLookAndFeelDecorated A hint as to whether or not current
* look and feel should provide window decorations
* @see javax.swing.LookAndFeel#getSupportsWindowDecorations
* @since 1.4
*/
public static void setDefaultLookAndFeelDecorated(boolean defaultLookAndFeelDecorated) {
if (defaultLookAndFeelDecorated) {
SwingUtilities.appContextPut(defaultLookAndFeelDecoratedKey, Boolean.TRUE);
} else {
SwingUtilities.appContextPut(defaultLookAndFeelDecoratedKey, Boolean.FALSE);
}
}
/**
* Returns true if newly created <code>JFrame</code>s should have their
* Window decorations provided by the current look and feel. This is only
* a hint, as certain look and feels may not support this feature.
*
* @return true if look and feel should provide Window decorations.
* @since 1.4
*/
public static boolean isDefaultLookAndFeelDecorated() {
Boolean defaultLookAndFeelDecorated =
(Boolean) SwingUtilities.appContextGet(defaultLookAndFeelDecoratedKey);
if (defaultLookAndFeelDecorated == null) {
defaultLookAndFeelDecorated = Boolean.FALSE;
}
return defaultLookAndFeelDecorated.booleanValue();
}
/**
* Returns a string representation of this <code>JFrame</code>.
* This method
* is intended to be used only for debugging purposes, and the
* content and format of the returned string may vary between
* implementations. The returned string may be empty but may not
* be <code>null</code>.
*
* @return a string representation of this <code>JFrame</code>
*/
protected String paramString() {
String defaultCloseOperationString;
if (defaultCloseOperation == HIDE_ON_CLOSE) {
defaultCloseOperationString = "HIDE_ON_CLOSE";
} else if (defaultCloseOperation == DISPOSE_ON_CLOSE) {
defaultCloseOperationString = "DISPOSE_ON_CLOSE";
} else if (defaultCloseOperation == DO_NOTHING_ON_CLOSE) {
defaultCloseOperationString = "DO_NOTHING_ON_CLOSE";
} else if (defaultCloseOperation == 3) {
defaultCloseOperationString = "EXIT_ON_CLOSE";
} else defaultCloseOperationString = "";
String rootPaneString = (rootPane != null ?
rootPane.toString() : "");
String rootPaneCheckingEnabledString = (rootPaneCheckingEnabled ?
"true" : "false");
return super.paramString() +
",defaultCloseOperation=" + defaultCloseOperationString +
",rootPane=" + rootPaneString +
",rootPaneCheckingEnabled=" + rootPaneCheckingEnabledString;
}
/////////////////
// Accessibility support
////////////////
/** The accessible context property. */
protected AccessibleContext accessibleContext = null;
/**
* Gets the AccessibleContext associated with this JFrame.
* For JFrames, the AccessibleContext takes the form of an
* AccessibleJFrame.
* A new AccessibleJFrame instance is created if necessary.
*
* @return an AccessibleJFrame that serves as the
* AccessibleContext of this JFrame
*/
public AccessibleContext getAccessibleContext() {
if (accessibleContext == null) {
accessibleContext = new AccessibleJFrame();
}
return accessibleContext;
}
/**
* This class implements accessibility support for the
* <code>JFrame</code> class. It provides an implementation of the
* Java Accessibility API appropriate to frame user-interface
* elements.
*/
protected class AccessibleJFrame extends AccessibleAWTFrame {
// AccessibleContext methods
/**
* Get the accessible name of this object.
*
* @return the localized name of the object -- can be null if this
* object does not have a name
*/
public String getAccessibleName() {
if (accessibleName != null) {
return accessibleName;
} else {
if (getTitle() == null) {
return super.getAccessibleName();
} else {
return getTitle();
}
}
}
/**
* Get the state of this object.
*
* @return an instance of AccessibleStateSet containing the current
* state set of the object
* @see AccessibleState
*/
public AccessibleStateSet getAccessibleStateSet() {
AccessibleStateSet states = super.getAccessibleStateSet();
if (isResizable()) {
states.add(AccessibleState.RESIZABLE);
}
if (getFocusOwner() != null) {
states.add(AccessibleState.ACTIVE);
}
// FIXME: [[[WDW - should also return ICONIFIED and ICONIFIABLE
// if we can ever figure these out]]]
return states;
}
} // inner class AccessibleJFrame
}
Reference in New Issue Copy Permalink