/**
   * Creates an instance of a ControlExample embedded inside the supplied parent Composite.
   *
   * @param parent the container of the example
   */
  public ControlExample(Composite parent) {
    initResources();
    tabFolder = new TabFolder(parent, SWT.NONE);
    tabs = createTabs();
    for (Tab tab : tabs) {
      TabItem item = new TabItem(tabFolder, SWT.NONE);
      item.setText(tab.getTabText());
      item.setControl(tab.createTabFolderPage(tabFolder));
      item.setData(tab);
    }

    /* Workaround: if the tab folder is wider than the screen,
     * Mac platforms clip instead of somehow scrolling the tab items.
     * We try to recover some width by using shorter tab names. */
    Point size = parent.computeSize(SWT.DEFAULT, SWT.DEFAULT);
    Rectangle monitorArea = parent.getMonitor().getClientArea();
    boolean isMac = SWT.getPlatform().equals("cocoa");
    if (size.x > monitorArea.width && isMac) {
      TabItem[] tabItems = tabFolder.getItems();
      for (int i = 0; i < tabItems.length; i++) {
        tabItems[i].setText(tabs[i].getShortTabText());
      }
    }
    startup = false;
  }
  public void showAttributes(Composite parent) {
    composite = new Splitter(parent, SWT.HORIZONTAL);

    GridLayout layout = new GridLayout();
    layout.marginWidth = 0;
    layout.marginHeight = 0;
    layout.numColumns = 1;
    composite.setLayout(layout);

    GridData data = new GridData(GridData.FILL_BOTH);
    composite.setLayoutData(data);

    tabs = new TabFolder(composite, SWT.TOP);
    tabs.setLayoutData(data);
    general = new TabItem(tabs, SWT.NONE);

    general.setText(DropWizardMessages.General_Tab_Title);

    Composite generalTabContent = new Composite(tabs, SWT.NONE);

    general.setControl(fillGeneralOption(generalTabContent));

    TabItem advanced = new TabItem(tabs, SWT.NONE);
    advanced.setText(DropWizardMessages.Advanced_Tab_Title);
    TagAttributesComposite advancedTabContent =
        new TagAttributesComposite(tabs, SWT.NONE, getSpecificWizard().getWizardModel(), context);
    advanced.setControl(advancedTabContent);

    tabs.addSelectionListener(advancedTabContent);

    setControl(composite);
    getSpecificWizard()
        .getWizardModel()
        .addPropertyChangeListener(IDropWizardModel.TAG_PROPOSAL, this);
    updateTitle();
    runValidation();
  }
  /* (non-Javadoc)
   * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
   */
  public void createControl(Composite parent) {
    Composite comp = SWTFactory.createComposite(parent, 1, 1, GridData.FILL_BOTH, 0, 0);

    Composite nameComp = SWTFactory.createComposite(comp, 2, 1, GridData.FILL_HORIZONTAL, 0, 0);

    SWTFactory.createLabel(nameComp, PDEUIMessages.TargetDefinitionContentPage_4, 1);

    fNameText = SWTFactory.createSingleText(nameComp, 1);
    fNameText.addModifyListener(
        new ModifyListener() {
          public void modifyText(ModifyEvent e) {
            String name = fNameText.getText().trim();
            if (name.length() == 0) {
              setErrorMessage(PDEUIMessages.TargetDefinitionContentPage_7);
            } else {
              setErrorMessage(null);
              setMessage(PDEUIMessages.TargetDefinitionContentPage_2);
            }
            getTargetDefinition().setName(name);
            setPageComplete(isPageComplete());
          }
        });

    TabFolder tabs = new TabFolder(comp, SWT.NONE);
    tabs.setLayoutData(new GridData(GridData.FILL_BOTH));
    tabs.setFont(comp.getFont());

    fLocationTab = new TabItem(tabs, SWT.NONE);
    fLocationTab.setText(PDEUIMessages.LocationSection_0);

    Composite pluginTabContainer = SWTFactory.createComposite(tabs, 1, 1, GridData.FILL_BOTH);
    SWTFactory.createWrapLabel(
        pluginTabContainer, PDEUIMessages.TargetDefinitionContentPage_LocationDescription, 2, 400);
    fLocationTree = TargetLocationsGroup.createInDialog(pluginTabContainer);
    fLocationTab.setControl(pluginTabContainer);
    PlatformUI.getWorkbench()
        .getHelpSystem()
        .setHelp(pluginTabContainer, IHelpContextIds.EDIT_TARGET_WIZARD_LOCATIONS_TAB);

    TabItem contentTab = new TabItem(tabs, SWT.NONE);
    contentTab.setText(PDEUIMessages.TargetDefinitionContentPage_6);
    Composite contentTabContainer = SWTFactory.createComposite(tabs, 1, 1, GridData.FILL_BOTH);
    SWTFactory.createWrapLabel(contentTabContainer, PDEUIMessages.ContentSection_1, 2, 400);
    fContentTree = TargetContentsGroup.createInDialog(contentTabContainer);
    contentTab.setControl(contentTabContainer);
    PlatformUI.getWorkbench()
        .getHelpSystem()
        .setHelp(contentTabContainer, IHelpContextIds.EDIT_TARGET_WIZARD_CONTENT_TAB);

    TabItem envTab = new TabItem(tabs, SWT.NONE);
    envTab.setText(PDEUIMessages.TargetDefinitionEnvironmentPage_3);
    Composite envTabContainer = SWTFactory.createComposite(tabs, 1, 1, GridData.FILL_BOTH);
    createTargetEnvironmentGroup(envTabContainer);
    createJREGroup(envTabContainer);
    envTab.setControl(envTabContainer);
    PlatformUI.getWorkbench()
        .getHelpSystem()
        .setHelp(envTabContainer, IHelpContextIds.EDIT_TARGET_WIZARD_ENVIRONMENT_TAB);

    TabItem argsTab = new TabItem(tabs, SWT.NONE);
    argsTab.setText(PDEUIMessages.TargetDefinitionEnvironmentPage_4);
    argsTab.setControl(createArgumentsGroup(tabs));
    PlatformUI.getWorkbench()
        .getHelpSystem()
        .setHelp(argsTab.getControl(), IHelpContextIds.EDIT_TARGET_WIZARD_ARGUMENT_TAB);

    TabItem depTab = new TabItem(tabs, SWT.NONE);
    depTab.setText(PDEUIMessages.TargetDefinitionEnvironmentPage_5);
    depTab.setControl(createImplicitTabContents(tabs));
    PlatformUI.getWorkbench()
        .getHelpSystem()
        .setHelp(depTab.getControl(), IHelpContextIds.EDIT_TARGET_WIZARD_IMPLICIT_TAB);

    PlatformUI.getWorkbench().getHelpSystem().setHelp(comp, IHelpContextIds.EDIT_TARGET_WIZARD);
    initializeListeners();
    targetChanged(getTargetDefinition());
    setControl(comp);
  }