--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/javax/swing/JButton.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,323 @@
+/*
+ * Copyright 1997-2007 Sun Microsystems, Inc. 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. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+package javax.swing;
+
+import java.beans.ConstructorProperties;
+
+import java.awt.*;
+import java.awt.event.*;
+import java.awt.image.*;
+
+import javax.swing.plaf.*;
+import javax.swing.event.*;
+import javax.accessibility.*;
+
+import java.io.ObjectOutputStream;
+import java.io.ObjectInputStream;
+import java.io.IOException;
+
+
+/**
+ * An implementation of a "push" button.
+ * <p>
+ * Buttons can be configured, and to some degree controlled, by
+ * <code><a href="Action.html">Action</a></code>s. Using an
+ * <code>Action</code> with a button has many benefits beyond directly
+ * configuring a button. Refer to <a href="Action.html#buttonActions">
+ * Swing Components Supporting <code>Action</code></a> for more
+ * details, and you can find more information in <a
+ * href="http://java.sun.com/docs/books/tutorial/uiswing/misc/action.html">How
+ * to Use Actions</a>, a section in <em>The Java Tutorial</em>.
+ * <p>
+ * See <a href="http://java.sun.com/docs/books/tutorial/uiswing/components/button.html">How to Use Buttons, Check Boxes, and Radio Buttons</a>
+ * in <em>The Java Tutorial</em>
+ * for information and examples of using buttons.
+ * <p>
+ * <strong>Warning:</strong> Swing is not thread safe. For more
+ * information see <a
+ * href="package-summary.html#threading">Swing's Threading
+ * Policy</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}.
+ *
+ * @beaninfo
+ * attribute: isContainer false
+ * description: An implementation of a \"push\" button.
+ *
+ * @author Jeff Dinkins
+ */
+public class JButton extends AbstractButton implements Accessible {
+
+ /**
+ * @see #getUIClassID
+ * @see #readObject
+ */
+ private static final String uiClassID = "ButtonUI";
+
+ /**
+ * Creates a button with no set text or icon.
+ */
+ public JButton() {
+ this(null, null);
+ }
+
+ /**
+ * Creates a button with an icon.
+ *
+ * @param icon the Icon image to display on the button
+ */
+ public JButton(Icon icon) {
+ this(null, icon);
+ }
+
+ /**
+ * Creates a button with text.
+ *
+ * @param text the text of the button
+ */
+ @ConstructorProperties({"text"})
+ public JButton(String text) {
+ this(text, null);
+ }
+
+ /**
+ * Creates a button where properties are taken from the
+ * <code>Action</code> supplied.
+ *
+ * @param a the <code>Action</code> used to specify the new button
+ *
+ * @since 1.3
+ */
+ public JButton(Action a) {
+ this();
+ setAction(a);
+ }
+
+ /**
+ * Creates a button with initial text and an icon.
+ *
+ * @param text the text of the button
+ * @param icon the Icon image to display on the button
+ */
+ public JButton(String text, Icon icon) {
+ // Create the model
+ setModel(new DefaultButtonModel());
+
+ // initialize
+ init(text, icon);
+ }
+
+ /**
+ * Resets the UI property to a value from the current look and
+ * feel.
+ *
+ * @see JComponent#updateUI
+ */
+ public void updateUI() {
+ setUI((ButtonUI)UIManager.getUI(this));
+ }
+
+
+ /**
+ * Returns a string that specifies the name of the L&F class
+ * that renders this component.
+ *
+ * @return the string "ButtonUI"
+ * @see JComponent#getUIClassID
+ * @see UIDefaults#getUI
+ * @beaninfo
+ * expert: true
+ * description: A string that specifies the name of the L&F class.
+ */
+ public String getUIClassID() {
+ return uiClassID;
+ }
+
+
+ /**
+ * Gets the value of the <code>defaultButton</code> property,
+ * which if <code>true</code> means that this button is the current
+ * default button for its <code>JRootPane</code>.
+ * Most look and feels render the default button
+ * differently, and may potentially provide bindings
+ * to access the default button.
+ *
+ * @return the value of the <code>defaultButton</code> property
+ * @see JRootPane#setDefaultButton
+ * @see #isDefaultCapable
+ * @beaninfo
+ * description: Whether or not this button is the default button
+ */
+ public boolean isDefaultButton() {
+ JRootPane root = SwingUtilities.getRootPane(this);
+ if (root != null) {
+ return root.getDefaultButton() == this;
+ }
+ return false;
+ }
+
+ /**
+ * Gets the value of the <code>defaultCapable</code> property.
+ *
+ * @return the value of the <code>defaultCapable</code> property
+ * @see #setDefaultCapable
+ * @see #isDefaultButton
+ * @see JRootPane#setDefaultButton
+ */
+ public boolean isDefaultCapable() {
+ return defaultCapable;
+ }
+
+ /**
+ * Sets the <code>defaultCapable</code> property,
+ * which determines whether this button can be
+ * made the default button for its root pane.
+ * The default value of the <code>defaultCapable</code>
+ * property is <code>true</code> unless otherwise
+ * specified by the look and feel.
+ *
+ * @param defaultCapable <code>true</code> if this button will be
+ * capable of being the default button on the
+ * <code>RootPane</code>; otherwise <code>false</code>
+ * @see #isDefaultCapable
+ * @beaninfo
+ * bound: true
+ * attribute: visualUpdate true
+ * description: Whether or not this button can be the default button
+ */
+ public void setDefaultCapable(boolean defaultCapable) {
+ boolean oldDefaultCapable = this.defaultCapable;
+ this.defaultCapable = defaultCapable;
+ firePropertyChange("defaultCapable", oldDefaultCapable, defaultCapable);
+ }
+
+ /**
+ * Overrides <code>JComponent.removeNotify</code> to check if
+ * this button is currently set as the default button on the
+ * <code>RootPane</code>, and if so, sets the <code>RootPane</code>'s
+ * default button to <code>null</code> to ensure the
+ * <code>RootPane</code> doesn't hold onto an invalid button reference.
+ */
+ public void removeNotify() {
+ JRootPane root = SwingUtilities.getRootPane(this);
+ if (root != null && root.getDefaultButton() == this) {
+ root.setDefaultButton(null);
+ }
+ super.removeNotify();
+ }
+
+ /**
+ * See readObject() and writeObject() in JComponent for more
+ * information about serialization in Swing.
+ */
+ private void writeObject(ObjectOutputStream s) throws IOException {
+ s.defaultWriteObject();
+ if (getUIClassID().equals(uiClassID)) {
+ byte count = JComponent.getWriteObjCounter(this);
+ JComponent.setWriteObjCounter(this, --count);
+ if (count == 0 && ui != null) {
+ ui.installUI(this);
+ }
+ }
+ }
+
+
+ /**
+ * Returns a string representation of this <code>JButton</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>JButton</code>
+ */
+ protected String paramString() {
+ String defaultCapableString = (defaultCapable ? "true" : "false");
+
+ return super.paramString() +
+ ",defaultCapable=" + defaultCapableString;
+ }
+
+
+/////////////////
+// Accessibility support
+////////////////
+
+ /**
+ * Gets the <code>AccessibleContext</code> associated with this
+ * <code>JButton</code>. For <code>JButton</code>s,
+ * the <code>AccessibleContext</code> takes the form of an
+ * <code>AccessibleJButton</code>.
+ * A new <code>AccessibleJButton</code> instance is created if necessary.
+ *
+ * @return an <code>AccessibleJButton</code> that serves as the
+ * <code>AccessibleContext</code> of this <code>JButton</code>
+ * @beaninfo
+ * expert: true
+ * description: The AccessibleContext associated with this Button.
+ */
+ public AccessibleContext getAccessibleContext() {
+ if (accessibleContext == null) {
+ accessibleContext = new AccessibleJButton();
+ }
+ return accessibleContext;
+ }
+
+ /**
+ * This class implements accessibility support for the
+ * <code>JButton</code> class. It provides an implementation of the
+ * Java Accessibility API appropriate to button user-interface
+ * elements.
+ * <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}.
+ */
+ protected class AccessibleJButton extends AccessibleAbstractButton {
+
+ /**
+ * Get the role of this object.
+ *
+ * @return an instance of AccessibleRole describing the role of the
+ * object
+ * @see AccessibleRole
+ */
+ public AccessibleRole getAccessibleRole() {
+ return AccessibleRole.PUSH_BUTTON;
+ }
+ } // inner class AccessibleJButton
+}