Source Code : SWT Wizard Composite

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SWT Wizard Composite

/*
SWT/JFace in Action
GUI Design with Eclipse 3.0
Matthew Scarpino, Stephen Holder, Stanford Ng, and Laurent Mihalkovic

ISBN: 1932394273

Publisher: Manning
*/


import org.eclipse.jface.wizard.IWizardPage;
import org.eclipse.jface.wizard.Wizard;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
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.Label;
import org.eclipse.swt.widgets.Text;

public class Ch11WizardComposite extends Composite {
  public Ch11WizardComposite(Composite parent) {
    super(parent, SWT.NONE);
    buildControls();
  }

  protected void buildControls() {
    final Composite parent = this;
    FillLayout layout = new FillLayout();
    parent.setLayout(layout);

    Button dialogBtn = new Button(parent, SWT.PUSH);
    dialogBtn.setText("Wizard Dialog...");
    dialogBtn.addSelectionListener(new SelectionListener() {

      public void widgetSelected(SelectionEvent e) {
        WizardDialog dialog = new WizardDialog(parent.getShell(),
            new ProjectWizard());
        dialog.open();
      }

      public void widgetDefaultSelected(SelectionEvent e) {
      }
    });
  }

}

class ProjectWizard extends Wizard {

  public ProjectWizard() {
    super();
  }

  public void addPages() {
    addPage(new DirectoryPage());
    addPage(new ChooseDirectoryPage());
    addPage(new SummaryPage());
  }

  public boolean performFinish() {
    DirectoryPage dirPage = getDirectoryPage();
    if (dirPage.useDefaultDirectory()) {
      System.out.println("Using default directory");
    } else {
      ChooseDirectoryPage choosePage = getChoosePage();
      System.out.println("Using directory: " + choosePage.getDirectory());
    }
    return true;
  }

  private ChooseDirectoryPage getChoosePage() {
    return (ChooseDirectoryPage) getPage(ChooseDirectoryPage.PAGE_NAME);
  }

  private DirectoryPage getDirectoryPage() {
    return (DirectoryPage) getPage(DirectoryPage.PAGE_NAME);
  }

  public boolean performCancel() {
    System.out.println("Perform Cancel called");
    return true;
  }

  public IWizardPage getNextPage(IWizardPage page) {
    if (page instanceof DirectoryPage) {
      DirectoryPage dirPage = (DirectoryPage) page;
      if (dirPage.useDefaultDirectory()) {
        SummaryPage summaryPage = (SummaryPage) getPage(SummaryPage.PAGE_NAME);
        summaryPage.updateText("Using default directory");
        return summaryPage;
      }
    }

    IWizardPage nextPage = super.getNextPage(page);
    if (nextPage instanceof SummaryPage) {
      SummaryPage summary = (SummaryPage) nextPage;
      DirectoryPage dirPage = getDirectoryPage();
      summary
          .updateText(dirPage.useDefaultDirectory() ? "Using default directory"
              : "Using directory:"
                  + getChoosePage().getDirectory());
    }
    return nextPage;
  }
}

class SummaryPage extends WizardPage {
  public static final String PAGE_NAME = "Summary";

  private Label textLabel;

  public SummaryPage() {
    super(PAGE_NAME, "Summary Page", null);
  }

  public void createControl(Composite parent) {
    Composite topLevel = new Composite(parent, SWT.NONE);
    topLevel.setLayout(new FillLayout());

    textLabel = new Label(topLevel, SWT.CENTER);
    textLabel.setText("");

    setControl(topLevel);
    setPageComplete(true);
  }

  public void updateText(String newText) {
    textLabel.setText(newText);
  }
}

class DirectoryPage extends WizardPage {
  public static final String PAGE_NAME = "Directory";

  private Button button;

  public DirectoryPage() {
    super(PAGE_NAME, "Directory Page", null);
  }

  public void createControl(Composite parent) {
    Composite topLevel = new Composite(parent, SWT.NONE);
    topLevel.setLayout(new GridLayout(2, false));

    Label l = new Label(topLevel, SWT.CENTER);
    l.setText("Use default directory?");

    button = new Button(topLevel, SWT.CHECK);

    setControl(topLevel);
    setPageComplete(true);
  }

  public boolean useDefaultDirectory() {
    return button.getSelection();
  }
}

class ChooseDirectoryPage extends WizardPage {
  public static final String PAGE_NAME = "Choose Directory";

  private Text text;

  public ChooseDirectoryPage() {
    super(PAGE_NAME, "Choose Directory Page", null);
  }

  public void createControl(Composite parent) {
    Composite topLevel = new Composite(parent, SWT.NONE);
    topLevel.setLayout(new GridLayout(2, false));

    Label l = new Label(topLevel, SWT.CENTER);
    l.setText("Enter the directory to use:");

    text = new Text(topLevel, SWT.SINGLE);
    text.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

    setControl(topLevel);
    setPageComplete(true);
  }

  public String getDirectory() {
    return text.getText();
  }
}

           
       

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