< prev index next >

src/java.desktop/share/classes/javax/swing/plaf/basic/BasicLabelUI.java

Print this page




 455      *
 456      * @param c a component
 457      * @return an instance of {@code BasicLabelUI}
 458      */
 459     public static ComponentUI createUI(JComponent c) {
 460         if (System.getSecurityManager() != null) {
 461             AppContext appContext = AppContext.getAppContext();
 462             BasicLabelUI safeBasicLabelUI =
 463                     (BasicLabelUI) appContext.get(BASIC_LABEL_UI_KEY);
 464             if (safeBasicLabelUI == null) {
 465                 safeBasicLabelUI = new BasicLabelUI();
 466                 appContext.put(BASIC_LABEL_UI_KEY, safeBasicLabelUI);
 467             }
 468             return safeBasicLabelUI;
 469         }
 470         return labelUI;
 471     }
 472 
 473     public void propertyChange(PropertyChangeEvent e) {
 474         String name = e.getPropertyName();
 475         if (name == "text" || "font" == name || "foreground" == name) {

 476             // remove the old html view client property if one
 477             // existed, and install a new one if the text installed
 478             // into the JLabel is html source.
 479             JLabel lbl = ((JLabel) e.getSource());
 480             String text = lbl.getText();
 481             BasicHTML.updateRenderer(lbl, text);
 482         }
 483         else if (name == "labelFor" || name == "displayedMnemonic") {
 484             installKeyboardActions((JLabel) e.getSource());
 485         }
 486     }
 487 
 488     // When the accelerator is pressed, temporarily make the JLabel
 489     // focusTraversable by registering a WHEN_FOCUSED action for the
 490     // release of the accelerator.  Then give it focus so it can
 491     // prevent unwanted keyTyped events from getting to other components.
 492     private static class Actions extends UIAction {
 493         private static final String PRESS = "press";
 494         private static final String RELEASE = "release";
 495 




 455      *
 456      * @param c a component
 457      * @return an instance of {@code BasicLabelUI}
 458      */
 459     public static ComponentUI createUI(JComponent c) {
 460         if (System.getSecurityManager() != null) {
 461             AppContext appContext = AppContext.getAppContext();
 462             BasicLabelUI safeBasicLabelUI =
 463                     (BasicLabelUI) appContext.get(BASIC_LABEL_UI_KEY);
 464             if (safeBasicLabelUI == null) {
 465                 safeBasicLabelUI = new BasicLabelUI();
 466                 appContext.put(BASIC_LABEL_UI_KEY, safeBasicLabelUI);
 467             }
 468             return safeBasicLabelUI;
 469         }
 470         return labelUI;
 471     }
 472 
 473     public void propertyChange(PropertyChangeEvent e) {
 474         String name = e.getPropertyName();        
 475         if (name == "text" || "font" == name || "foreground" == name ||
 476             "ancestor" == name || "graphicsConfig" == name) {
 477             // remove the old html view client property if one
 478             // existed, and install a new one if the text installed
 479             // into the JLabel is html source.
 480             JLabel lbl = ((JLabel) e.getSource());
 481             String text = lbl.getText();
 482             BasicHTML.updateRenderer(lbl, text);
 483         }
 484         else if (name == "labelFor" || name == "displayedMnemonic") {
 485             installKeyboardActions((JLabel) e.getSource());
 486         }
 487     }
 488 
 489     // When the accelerator is pressed, temporarily make the JLabel
 490     // focusTraversable by registering a WHEN_FOCUSED action for the
 491     // release of the accelerator.  Then give it focus so it can
 492     // prevent unwanted keyTyped events from getting to other components.
 493     private static class Actions extends UIAction {
 494         private static final String PRESS = "press";
 495         private static final String RELEASE = "release";
 496 


< prev index next >