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

1. Java Tutorial
2. SWT
3. Text Event

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(10, 85, 100, 32);

    Text t2 = new Text(shell, SWT.SINGLE | SWT.BORDER);
    t2.setBounds(10, 25, 100, 32);

    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(200, 200);
    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 Text
	17.18.2.	Add KeyEvent listener to Text
	17.18.3.	Listen to key Traversed event
	17.18.4.	Use a regular expression to verify input(a phone number is used)
	17.18.5.	Add events to Text: MouseDown, MouseMove, MouseUp, KeyDown, KeyUp Resize
	17.18.6.	Detect when the user scrolls a text control
	17.18.7.	Verify input (format for date)
	17.18.8.	Verify input (only allow digits)
	17.18.9.	Text TraverseListener: Tab key event (override Tab behavior to traverse out of a Text)
	17.18.10.	Text default selection event(Return/Enter key)
	17.18.11.	Add default selection listener to Text