import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class TestLayout {

	
	private static Composite comp;
	private static Text textLieu;
	private static Text textMat;
	private static Composite viewcomposite;
	private static Composite container;
	private static StackLayout layout;
	private static Composite pagecontrol;
	private static Shell shell;
	private static int page;


	public static void main(String[] args) {

		Display display = new Display ();
		shell = new Shell (display);
		
		shell.setLayout(new FillLayout());
		
		createContainer(shell); 
		

		shell.pack ();
		shell.open ();
		while (!shell.isDisposed ()) {
			if (!display.readAndDispatch ()) display.sleep ();
		}
		display.dispose ();
		
	}

	
	 private static void createContainer(Composite parent) {
		 viewcomposite = new Composite (parent, SWT.NONE);
			viewcomposite.setLayout(new GridLayout());
			container = new Composite(viewcomposite, SWT.NONE);
			layout = new StackLayout();
			container.setLayout(layout);
			Button button = new Button(viewcomposite,SWT.PUSH);
			button.setText("Show page");
			button.addSelectionListener(new SelectionListener() {
				
				public void widgetSelected(SelectionEvent e) {
					showPage();
				}
				
				public void widgetDefaultSelected(SelectionEvent e) {
					widgetSelected(e);
				}
			});
	}


	private static void showPage() {
		createControl(container);
		layout.topControl=comp;
		// ici on peut faire au lieu de shell.layout(true,true)
		viewcomposite.layout(true,true);
		//shell.layout(true,true);
		shell.pack();
	}


	public static void createControl(Composite parent) {
		 
		page++;
		
		   	comp = new Composite(parent, SWT.NONE); // attention créer un nouveal comp et perd la référence du précédent
			GridLayout layout = new GridLayout();
			comp.setLayout(layout);
			layout.numColumns = 3;
			layout.marginLeft = 300;
	 
			Label labelTitre = new Label(comp,SWT.NONE);
			labelTitre.setText("Sélection du lieu de l'affaire et des matrices de test (page "+page+")");
			labelTitre.setFont(new Font(null,"Arial",14,0));
			GridData titreGD = new GridData(GridData.FILL_HORIZONTAL);
			titreGD.horizontalSpan = 3;
			titreGD.heightHint = 70;
			labelTitre.setLayoutData(titreGD);
	 
			Label labelLieu = new Label(comp, SWT.NONE);
			labelLieu.setText("Lieu de l'affaire : ");
			labelLieu.setFont(new Font(null,"Arial",10,0));
			labelLieu.setToolTipText("Indiquer le dossier racine de l'affaire");
			textLieu = new Text(comp, SWT.BORDER);
			textLieu.setText("Chemin de l'affaire");
			textLieu.setFont(new Font(null,"Arial",10,0));
			textLieu.setEditable(false);
			GridData affaireGD = new GridData(GridData.CENTER);
			affaireGD.widthHint = 300;
			textLieu.setLayoutData(affaireGD);
			Button btnLieuAffaire = new Button(comp, SWT.NONE);
			btnLieuAffaire.setText("...");
			//btnLieuAffaire.addSelectionListener(new AffaireSelectionListenerW(parametrageControllerWPageOne));
	 
			Label labelMat = new Label(comp, SWT.NONE);
			labelMat.setText("Lieu des matrices de test : ");
			//labelMat.setFont(new Font(null,"Arial",10,0));
			labelMat.setToolTipText("Indiquer le dossier racine des matrices de test");
			textMat = new Text(comp, SWT.BORDER);
			textMat.setText("Chemin des matrices de test");
			textMat.setFont(new Font(null,"Arial",10,0));
			textMat.setEditable(false);
			affaireGD.widthHint = 300;
			textMat.setLayoutData(affaireGD);
			Button btnLieuMat = new Button(comp, SWT.NONE);
			btnLieuMat.setText("...");
			//btnLieuMat.addSelectionListener(new MatSelectionListenerW(parametrageControllerWPageOne));
	 
	    // Required to avoid an error in the system
	 
			//setControl(comp);
	    //setPageComplete(false);
			pagecontrol = comp;
			
	 
	  }
}