Add focus in/out event to Text : Text Event « SWT « Java Tutorial

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Java Tutorial » SWT » Text Event 
17. 18. 1. Add focus in/out event to Text
Add focus in/out event to Text
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class FocusEventInOut {

  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    
    Text t = new Text(shell, SWT.SINGLE | SWT.BORDER);
    t.setBounds(108510032);

    Text t2 = new Text(shell, SWT.SINGLE | SWT.BORDER);
    t2.setBounds(102510032);

    t2.addListener(SWT.FocusIn, new Listener() {
      public void handleEvent(Event e) {
        System.out.println("focus in");
      }
    });
    t2.addListener(SWT.FocusOut, new Listener() {
      public void handleEvent(Event e) {
       System.out.println("focus out");
      }
    });
    
    shell.setSize(200200);
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}
17. 18. Text Event
17. 18. 1. Add focus in/out event to TextAdd focus in/out event to Text
17. 18. 2. Add KeyEvent listener to TextAdd KeyEvent listener to Text
17. 18. 3. Listen to key Traversed eventListen to key Traversed event
17. 18. 4. Use a regular expression to verify input(a phone number is used)Use a regular expression to verify input(a phone number is used)
17. 18. 5. Add events to Text: MouseDown, MouseMove, MouseUp, KeyDown, KeyUp ResizeAdd events to Text: MouseDown, MouseMove, MouseUp, KeyDown, KeyUp Resize
17. 18. 6. Detect when the user scrolls a text controlDetect when the user scrolls a text control
17. 18. 7. Verify input (format for date)Verify input (format for date)
17. 18. 8. Verify input (only allow digits)Verify input (only allow digits)
17. 18. 9. Text TraverseListener: Tab key event (override Tab behavior to traverse out of a Text)Text TraverseListener: Tab key event (override Tab behavior to traverse out of a Text)
17. 18. 10. Text default selection event(Return/Enter key)Text default selection event(Return/Enter key)
17. 18. 11. Add default selection listener to TextAdd default selection listener to Text
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