- /*
- * @(#)JCheckBoxMenuItem.java 1.41 01/11/29
- *
- * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
- package javax.swing;
-
- import java.util.EventListener;
-
- import java.awt.*;
- import java.awt.event.*;
- import java.awt.image.*;
-
- import java.io.ObjectOutputStream;
- import java.io.ObjectInputStream;
- import java.io.IOException;
-
- import javax.swing.plaf.*;
- import javax.accessibility.*;
-
-
- /**
- * A menu item that can be selected or deselected. If selected, the menu
- * item typically appears with a checkmark next to it. If unselected or
- * deselected, the menu item appears without a checkmark. Like a regular
- * menu item, a checkbox menu item can have either text or a graphic
- * icon associated with it, or both.
- * <p>
- * Either <code>isSelected</code>/<code>setSelected</code> or
- * <code>getState</code>/<code>setState</code> can be used
- * to determine/specify the menu item's selection state. (The
- * Swing-standard methods are <code>isSelected</code> and
- * <code>setSelected</code>. These methods work for all menus and buttons.
- * The <code>getState</code> and <code>setState</code> methods exist for
- * compatibility with other component sets.)
- * <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#JCheckBoxMenuItem">JCheckBoxMenuItem</a> key assignments.
- * <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. A future release of Swing will provide support for
- * long term persistence.
- *
- * @beaninfo
- * attribute: isContainer false
- *
- * @version 1.41 11/29/01
- * @author Georges Saab
- * @author David Karlton
- */
- public class JCheckBoxMenuItem extends JMenuItem implements SwingConstants,
- Accessible
- {
- /**
- * @see #getUIClassID
- * @see #readObject
- */
- private static final String uiClassID = "CheckBoxMenuItemUI";
-
- /**
- * Creates an initially unselected checkboxMenuItem with no set text or icon.
- */
- public JCheckBoxMenuItem() {
- this(null, null, false);
- }
-
- /**
- * Creates an initially unselected checkboxMenuItem with an icon.
- *
- * @param icon the icon of the CheckBoxMenuItem.
- */
- public JCheckBoxMenuItem(Icon icon) {
- this(null, icon, false);
- }
-
- /**
- * Creates an initially unselected checkboxMenuItem with text.
- *
- * @param text the text of the CheckBoxMenuItem
- */
- public JCheckBoxMenuItem(String text) {
- this(text, null, false);
- }
-
- /**
- * Creates an initially unselected checkboxMenuItem with the specified text and icon.
- *
- * @param text the text of the CheckBoxMenuItem
- * @param icon the icon of the CheckBoxMenuItem
- */
- public JCheckBoxMenuItem(String text, Icon icon) {
- this(text, icon, false);
- }
-
- /**
- * Creates a checkboxMenuItem with the specified text and selection state.
- *
- * @param text the text of the CheckBoxMenuItem.
- * @param b the selected state of the checkboxmenuitem
- */
- public JCheckBoxMenuItem(String text, boolean b) {
- this(text, null, b);
- }
-
- /**
- * Creates a checkboxMenuItem with the specified text, icon, and selection state.
- *
- * @param text the text of the CheckBoxMenuItem
- * @param icon the icon of the CheckBoxMenuItem
- * @param b the selected state of the checkboxmenuitem
- */
- public JCheckBoxMenuItem(String text, Icon icon, boolean b) {
- super(text, icon);
- setModel(new JToggleButton.ToggleButtonModel());
- setSelected(b);
- }
-
- /**
- * Returns the name of the L&F class
- * that renders this component.
- *
- * @return "CheckBoxMenuItemUI"
- * @see JComponent#getUIClassID
- * @see UIDefaults#getUI
- */
- public String getUIClassID() {
- return uiClassID;
- }
-
- /**
- * Returns the selected-state of the item. This method
- * exists for AWT compatibility only. New code should
- * use isSelected() instead.
- *
- * @return true if the item is selected
- */
- public boolean getState() {
- return isSelected();
- }
-
- /**
- * Sets the selected-state of the item. This method
- * exists for AWT compatibility only. New code should
- * use setSelected() instead.
- *
- * @param b a boolean value indicating the item's
- * selected-state, where true=selected
- * @beaninfo
- * description: The selection state of the Checkbox menu item
- * hidden: true
- */
- public synchronized void setState(boolean b) {
- setSelected(b);
- }
-
-
- /**
- * Returns an array (length 1) containing the checkbox menu item
- * label or null if the checkbox is not selected.
- *
- * @return an array containing 1 Object -- the text of the menu item
- * -- if the item is selected, otherwise null
- */
- public synchronized Object[] getSelectedObjects() {
- if (isSelected() == false)
- return null;
- Object[] selectedObjects = new Object[1];
- selectedObjects[0] = getText();
- return selectedObjects;
- }
-
- /**
- * Override <code>JComponent.requestFocus()</code> to prevent grabbing the focus.
- */
- public void requestFocus() {}
-
-
-
- /**
- * See readObject() and writeObject() in JComponent for more
- * information about serialization in Swing.
- */
- private void writeObject(ObjectOutputStream s) throws IOException {
- s.defaultWriteObject();
- if ((ui != null) && (getUIClassID().equals(uiClassID))) {
- ui.installUI(this);
- }
- }
-
-
- /**
- * Returns a string representation of this JCheckBoxMenuItem. 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 JCheckBoxMenuItem.
- */
- protected String paramString() {
- return super.paramString();
- }
-
- /////////////////
- // Accessibility support
- ////////////////
-
- /**
- * Get the AccessibleContext associated with this JComponent
- *
- * @return the AccessibleContext of this JComponent
- */
- public AccessibleContext getAccessibleContext() {
- if (accessibleContext == null) {
- accessibleContext = new AccessibleJCheckBoxMenuItem();
- }
- return accessibleContext;
- }
-
- /**
- * The class used to obtain the accessible role for this object.
- * <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. A future release of Swing will provide support for
- * long term persistence.
- */
- protected class AccessibleJCheckBoxMenuItem extends AccessibleJMenuItem {
- /**
- * Get the role of this object.
- *
- * @return an instance of AccessibleRole describing the role of the
- * object
- */
- public AccessibleRole getAccessibleRole() {
- return AccessibleRole.CHECK_BOX;
- }
- } // inner class AccessibleJCheckBoxMenuItem
- }