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Java Source | 1998-03-20 | 5.6 KB | 182 lines |
- /*
- * %W% %E%
- *
- * Copyright (c) 1997 Sun Microsystems, Inc. All Rights Reserved.
- *
- * This software is the confidential and proprietary information of Sun
- * Microsystems, Inc. ("Confidential Information"). You shall not
- * disclose such Confidential Information and shall use it only in
- * accordance with the terms of the license agreement you entered into
- * with Sun.
- *
- * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
- * SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
- * PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
- * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
- * THIS SOFTWARE OR ITS DERIVATIVES.
- *
- */
-
-
- package java.awt.swing;
- import java.awt.swing.plaf.*;
- import java.awt.accessibility.*;
-
-
- /**
- * Used to display a "Tip" for a Component. Typically components provide api
- * to automate the process of using ToolTips. For example, any Swing component
- * can use the JComponent <code>setToolTipText</code> method to specify the text
- * for a standard tooltip. A component that wants to create a custom ToolTip
- * display can override JComponent's <code>createToolTip</code> method and use
- * a subclass of this class.
- * <p>
- * See <a href="http://java.sun.com/docs/books/tutorial/ui/swing/tooltip.html">How to Use Tool Tips</a>
- * in <a href="http://java.sun.com/Series/Tutorial/index.html"><em>The Java Tutorial</em></a>
- * for further documentation.
- * <p>
- * Warning: 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 Swing1.0 applications. It will
- * not be possible to load serialized Swing1.0 objects with future releases
- * of Swing. The JDK1.2 release of Swing will be the compatibility
- * baseline for the serialized form of Swing objects.
- *
- * @see JComponent#setToolTipText
- * @see JComponent#createToolTip
- * @version %I% %G%
- * @author Dave Moore
- * @author Rich Shiavi
- */
- public class JToolTip extends JComponent implements Accessible {
- String tipText;
- JComponent component;
-
- /** Creates a tool tip. */
- public JToolTip() {
- updateUI();
- }
-
- /**
- * Returns the L&F object that renders this component.
- *
- * @return the ToolTipUI object that renders this component
- */
- public ToolTipUI getUI() {
- return (ToolTipUI)ui;
- }
-
- /**
- * Notification from the UIFactory that the L&F has changed.
- * Called to replace the UI with the latest version from the
- * UIFactory.
- *
- * @see JComponent#updateUI
- */
- public void updateUI() {
- setUI((ToolTipUI)UIManager.getUI(this));
- }
-
-
- /**
- * Returns the name of the L&F class that renders this component.
- *
- * @return "ToolTipUI"
- * @see JComponent#getUIClassID
- * @see UIDefaults#getUI
- */
- public String getUIClassID() {
- return "ToolTipUI";
- }
-
-
- /**
- * Sets the text to show when the tool tip is displayed.
- *
- * @param tipText the String to display
- */
- public void setTipText(String tipText) {
- this.tipText = tipText;
- }
-
- /**
- * Returns the text that is shown when the tool tip is displayed.
- *
- * @return the String that is displayed
- */
- public String getTipText() {
- return tipText;
- }
-
- /**
- * Specifies the component that the tooltip describes.
- *
- * @see JComponent#createToolTip
- */
- public void setComponent(JComponent c) {
- component = c;
- }
-
- /**
- * @return the component that the tooltip describes.
- *
- * @see JComponent#createToolTip
- */
- public JComponent getComponent() {
- return component;
- }
-
- /////////////////
- // Accessibility support
- ////////////////
-
- /**
- * Get the AccessibleContext associated with this JComponent
- *
- * @return the AccessibleContext of this JComponent
- */
- public AccessibleContext getAccessibleContext() {
- if (accessibleContext == null) {
- accessibleContext = new AccessibleJToolTip();
- }
- return accessibleContext;
- }
-
- /**
- * The class used to obtain the accessible role for this object.
- * <p>
- * Warning: 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 Swing1.0 applications. It will
- * not be possible to load serialized Swing1.0 objects with future releases
- * of Swing. The JDK1.2 release of Swing will be the compatibility
- * baseline for the serialized form of Swing objects.
- */
- protected class AccessibleJToolTip extends AccessibleJComponent {
-
- /**
- * Get the accessible description of this object.
- *
- * @return a localized String describing this object.
- */
- public String getAccessibleDescription() {
- if (accessibleDescription != null) {
- return accessibleDescription;
- } else {
- return getTipText();
- }
- }
-
- /**
- * Get the role of this object.
- *
- * @return an instance of AccessibleRole describing the role of the
- * object
- */
- public AccessibleRole getAccessibleRole() {
- return AccessibleRole.TOOL_TIP;
- }
- }
- }
-