java - 单击 'Next' 时显示等待光标 - Netbeans WizardDescriptor

Question

我有一个带有一些PanelDescriptor 的向导迭代器。当在实现 WizardDescriptor.ValidatingPanel 的一个 PanelDescriptor 上单击“下一步”时，我试图显示等待光标。其中的 validate() 方法需要时间执行。

到目前为止，我尝试了几种方法，但没有一个适合我。

1. http://dev.platform.netbeans.narkive.com/ofiffInN/finally-a-waitcursor-routine-that-works-in-netbeans

2. http://netbeans-org.1045718.n5.nabble.com/Setting-wait-cursor-td3026613.html#a3026614

   private static void changeCursorWaitStatus(final boolean isWaiting) {
       Mutex.EVENT.writeAccess(new Runnable() {
           public void run() {
               try {
                   JFrame mainFrame = (JFrame) WindowManager.getDefault().getMainWindow();
                   Component glassPane = mainFrame.getGlassPane();
                   if (isWaiting) {
                       glassPane.setVisible(true);
                       glassPane.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
                   } else {
                       glassPane.setVisible(false);
                       glassPane.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
                   }
               } catch (Exception e) {
                   // probably not worth handling 
               }
           }
       });
   }
   

3. https://community.oracle.com/message/5322657#5322657

   try {            
       TopComponent.getRegistry().getActivated().setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
       doBusyStuff();
   } finally {
       TopComponent.getRegistry().getActivated().setCursor(Cursor.getDefaultCursor());
   }
   

任何能指引我正确方向的提示将不胜感激。

Answer 1

试试这个

    private static final java.awt.event.MouseAdapter mouseAdapter = new java.awt.event.MouseAdapter() {

    };

    protected static final Cursor READY_CSR = new Cursor(Cursor.DEFAULT_CURSOR);
    protected static final Cursor WAIT_CSR  = new Cursor(Cursor.WAIT_CURSOR);

    public void setBusy(boolean busy) {

        if(busy) {
            setCursor(WAIT_CSR);
            frame.getGlassPane().setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
            frame.getGlassPane().addMouseListener(mouseAdapter);
            frame.getGlassPane().setVisible(true);
        }else {
            setCursor(READY_CSR);
            frame.getGlassPane().setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
            frame.getGlassPane().removeMouseListener(mouseAdapter);
            frame.getGlassPane().setVisible(false);
        }
    }