SharedMenu.java Source code

Introduction

Here is the source code for SharedMenu.java

Source

/******************************************************************************
 * Copyright (c) 1998, 2004 Jackwind Li Guojie
 * All right reserved. 
 * 
 * Created on Jan 5, 2004 2:50:44 PM by JACK
 * $Id$
 * 
 * visit: http://www.asprise.com/swt
 *****************************************************************************/

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;

public class SharedMenu {
    Display display = new Display();
    Shell shell = new Shell(display);

    public SharedMenu() {

        menu();

        shell.pack();
        shell.open();

        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                // If no more entries in event queue
                display.sleep();
            }
        }

        display.dispose();
    }

    private void menu() {
        shell.setLayout(new GridLayout(2, true));

        final Composite composite1 = new Composite(shell, SWT.BORDER);
        composite1.setBackground(display.getSystemColor(SWT.COLOR_BLACK));

        final Composite composite2 = new Composite(shell, SWT.BORDER);
        composite2.setBackground(display.getSystemColor(SWT.COLOR_BLUE));

        Menu menu = new Menu(composite1);
        MenuItem menuItem = new MenuItem(menu, SWT.PUSH);
        menuItem.setText("Popup menu");

        menuItem.addDisposeListener(new DisposeListener() {
            public void widgetDisposed(DisposeEvent e) {
                System.out.println("Menu item is disposed.");
            }
        });

        menuItem.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                System.out.println("Dispsoing ...");
                //composite2.setMenu(null);
                composite2.dispose();
            }
        });

        composite1.setMenu(menu);
        composite2.setMenu(menu);
    }

    /*   
       private void complex() {
          shell.setLayout(new GridLayout(2, true));
              
          Label label = new Label(shell, SWT.NULL);
          label.setText("Label");
              
          Composite composite = new Composite(shell, SWT.NULL);
          composite.setLayout(new GridLayout());
              
          Button button1 = new Button(composite, SWT.PUSH);
          button1.setText("Button 1");
              
          Button button2 = new Button(composite, SWT.PUSH);
          button2.setText("Button 2");
              
       }
           
       private void addButton() {
          shell.setLayout(new GridLayout());
              
          Label label = new Label(shell, SWT.NULL);
              
          final Color color = new Color(display, 255, 0, 0);
              
          label.setForeground(color);
          label.setForeground(display.getSystemColor(SWT.COLOR_RED));
              
          label.setText("Testing label");
              
          label.addDisposeListener(new DisposeListener() {
     public void widgetDisposed(DisposeEvent e) {
        color.dispose();
     }
          });
       }
        
       private void draw() {
          GC gc = new GC(shell);
          gc.setLineWidth(3);
              
          //Color color = new Color(display, 255, 0, 0);
              
          //gc.setForeground(color);
          gc.drawRectangle(10, 10, 200, 100);
              
          gc.dispose();
       }
    */

    public static void main(String[] args) {
        new SharedMenu();
    }

}