How can i impement some simple menu bar into this code ?

Question

Hello all.
I have a problem with my program. I wanna add a simple menu bar, but i don't have any idea how to do it.
Here is code of my program:
import java.awt.Menu;
import javax.swing.event.MenuListener;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter.DEFAULT;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.FillLayout;
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.MenuItem;
import org.eclipse.swt.widgets.Shell;
public class SimpleGraphicEditor {
public Display display;
public Shell shell,shellmenu;
public Canvas canvas;
public Image imageBuffer;
org.eclipse.swt.widgets.Menu menu;
public Menu fileMenu, editMenu, viewMenu;
int startx=0;
int starty=0;
int endx=0;
int endy=0;
     public SimpleGraphicEditor() {
          display = new Display();
          shell = new Shell(display);
          createGUI();
          shell.open();
               while(!shell.isDisposed()) {
               if(!display.readAndDispatch()) {
                    display.sleep();
          } // end of simple grapphic editor
          private void createGUI() {
               shell.setLayout(new FillLayout());
               canvas = new Canvas(shell, SWT.BORDER);
               menu = null;
               shell.setText("Simple rec draw");
               shell.setSize(500, 500);
               shell.setMenuBar(menu);
               canvas.addPaintListener(new PaintListener() {
                         public void paintControl(PaintEvent e) {
                         e.gc.drawImage(imageBuffer, 0, 0, 500, 500, 0, 0, 500, 500);      
               imageBuffer = new Image(display, 500, 500);
               Listener listener = new Listener() {
                    private boolean isDrawing;
                    private GC gc = new GC(imageBuffer);
                    private int oldX = 0;
                    private int oldY = 0;
                    private int newX = 0;
                    private int newY = 0;
                    private boolean isDeleting;
                    public void handleEvent(Event event) {
                         // System.err.println("type=" + event.type);
                         switch(event.type) {
                         case SWT.MouseDown:
                              // System.err.println("button down");
                              switch(event.button) {
                              case 1:
                                   isDrawing = true;
                                   System.out.println("Start at:("+event.x+","+event.y);
                                   startx=event.x;
                                   starty=event.y;
                                   break;
                              case 2:
                                   System.err.println("button2 down");
                                   break;
                              case 3:
                                   isDeleting = true;
                                   gc.setBackground(display.getSystemColor(SWT.COLOR_WHITE));
                                   break;
                              break;
                         case SWT.MouseUp:
                              // System.err.println("button up");
                              switch(event.button) {
                              case 1:
                                   isDrawing = false;
                                   // --- czyszczenie tablicy ---
                                   System.out.println("End at:("+event.x+","+event.y);
                                   int szerokosc=event.x-startx;
                                   int wysokosc=event.y-starty;
                                   //gc.drawRectangle(startx, starty, szerokosc,wysokosc);
                                   gc.setBackground(display.getSystemColor(SWT.COLOR_GREEN));
                                   gc.fillRectangle(startx, starty, szerokosc,wysokosc);
                                   canvas.redraw();
                                   break;
                              case 2:
                                   System.err.println("button2 up");
                                   break;
                              case 3:
                                   isDeleting = false;
                                   break;
                              break;
                         case SWT.MouseMove:
                              newX = event.x;
                              newY = event.y;
                              // System.err.println("mouse moved");
                              if(isDrawing) {
                                               // ----------- draw at hold  -----------------------------                    
                                   //gc.drawLine(oldX, oldY, newX, newY);
                                   int szerokosc=event.x-startx;
                                   int wysokosc=event.y-starty;
                                   gc.setForeground(display.getSystemColor(SWT.COLOR_BLACK));
                                   gc.drawText("x:"+event.x+", y:"+event.y+"  ", 0, 0);
                                   canvas.redraw();
                                   // ----- Clear the whole area -------------
                                   gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
                                   gc.setBackground(display.getSystemColor(SWT.COLOR_WHITE));
                                   gc.fillRectangle(startx, starty, szerokosc+500, wysokosc+500);
                                   gc.fillRectangle(startx, starty, szerokosc-500, wysokosc-500);
                                   gc.fillRectangle(startx, starty, szerokosc+500, wysokosc-500);
                                   gc.fillRectangle(startx, starty, szerokosc-500, wysokosc+500);
                                   canvas.redraw();
                                   gc.setForeground(display.getSystemColor(SWT.COLOR_DARK_BLUE));
                                   gc.drawRectangle(startx, starty, szerokosc, wysokosc);
                                   canvas.redraw();
                                   int x = (oldX < newX) ? oldX : newX;
                                   int y = (oldY < newY) ? oldY : newY;
                                   int width = (oldX < newX) ? (newX-oldX) : (oldX - newX);
                                   int height = (oldY < newY) ? (newY-oldY) : (oldY - newY);
                                   if(width < 20) width = 20;
                                   if(height < 20) height = 20;
                                   canvas.redraw(x, y, width, height, true);
                              } else if(isDeleting) {
                                   // Color c = gc.getBackground();
                                   // gc.setBackground(gc.getForeground());
                                   gc.fillRectangle(newX - 15, newY - 15, 30, 30);
                                   canvas.redraw(newX - 15, newY - 15, 30, 30, true);
                                   // gc.setBackground(c);
                                   break;
                         } // end switch caly
                         oldX = event.x;
                         oldY = event.y;
               canvas.redraw();
               canvas.addListener(SWT.MouseDown, listener);
               canvas.addListener(SWT.MouseUp, listener);
               canvas.addListener(SWT.MouseMove, listener);
          public static void main(String[] args) {
               new SimpleGraphicEditor();
}

Answer 1

nitroduxe wrote:
ok i add the following code:
menu = new org.eclipse.swt.widgets.Menu(shell, SWT.BAR);
               MenuItem fileItem = new MenuItem(menu, SWT.CASCADE);
              fileItem.setText("menu1");
              MenuItem editItem = new MenuItem(menu, SWT.CASCADE);
              editItem.setText("menu2");
              MenuItem viewItem = new MenuItem(menu, SWT.CASCADE);
              viewItem.setText("menu3");
              shell.setMenuBar(menu); // DODANIE MENUhow now i can add some submenu into menu1 and menu2 and menu3 ?
Edited by: nitroduxe on Mar 9, 2010 10:23 AMI would start by reading the [menu tutorial|http://java.sun.com/docs/books/tutorial/uiswing/components/menu.html].