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  1. import java.util.*;
  2. import org.eclipse.swt.*;
  3. import org.eclipse.swt.events.*;
  4. import org.eclipse.swt.layout.*;
  5. import org.eclipse.swt.widgets.*;
  6.  
  7. public class MyWidget {
  8.     DateTime time;      // デジタル時計
  9.     DateTime calendar;  // カレンダー
  10.  
  11.     public MyWidget() {
  12.         Display display = new Display();
  13.         Shell shell = new Shell(display);
  14.         RowLayout layout = new RowLayout();
  15.         // 縦に部品が並ぶようにする.
  16.         layout.type = SWT.VERTICAL;
  17.         shell.setLayout(layout);
  18.         shell.setText("MyWidget");
  19.         time = new DateTime(shell, SWT.TIME);
  20.         calendar = new DateTime(shell, SWT.CALENDAR);
  21.         shell.pack();
  22.         shell.open();
  23.         Runnable runnable = new Runnable() { // タイマースレッド(http://y...content-available-to-author-only...y.com/eclipse/2005/11/ui_949c.html)
  24.             @Override public void run() {
  25.                 Display display = Display.getCurrent();
  26.                 if (!display.isDisposed()) {
  27.                     // タイマースレッドを非同期で実行する.
  28.                     display.asyncExec(new Runnable() {
  29.                         @Override public void run() {
  30.                             // 現在時刻を取得して, デジタル時計に値を設定する.
  31.                             Calendar now = Calendar.getInstance();
  32.                             time.setHours(now.get(Calendar.HOUR_OF_DAY));
  33.                             time.setMinutes(now.get(Calendar.MINUTE));
  34.                             time.setSeconds(now.get(Calendar.SECOND));
  35.                             Display display = Display.getCurrent();
  36.                             if (!display.isDisposed()) {
  37.                                 // 500msecごとに自分をコールすることで, デジタル時計が進むようにする.
  38.                                 display.timerExec(500, this);
  39.                             }
  40.                         }
  41.                     });
  42.                 } 
  43.             }
  44.         };
  45.         // タイマースレッドを起動させるきっかけを与える.
  46.         if(!display.isDisposed()) {
  47.             display.timerExec(500, runnable);
  48.         }
  49.         for( ; !shell.isDisposed(); ) {
  50.             if(!display.readAndDispatch()) {
  51.                 display.sleep();
  52.             }
  53.         }
  54.         display.dispose();
  55.     }
  56.  
  57.     public static void main(String[] args) {
  58.         new MyWidget();
  59.     }
  60. }
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https://ideone.com/8RsvA
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
secret

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