Java Code Examples for org.eclipse.jface.fieldassist.ControlDecoration#hide()

/**
 * check if the given string is a valid clafer name and use the {@link ControlDecoration} to give feedback
 *
 * @param claferName {@link String} name to be tested
 * @param decoration {@link ControlDecoration} to display the error message in, hide if the string is valid
 * @return
 */
public static boolean validateClaferName(final String claferName, final boolean required, final ControlDecoration decoration) {
	boolean valid = true;

	final String result = getNameValidationMessage(claferName, required);
	if (!result.isEmpty()) {
		decoration.setImage(UIConstants.DEC_ERROR);
		decoration.setDescriptionText(result);
		decoration.show();
		valid = false;
	} else {
		decoration.hide();
	}

	return valid;
}
 

@Override
public void createControl(UI_POSITION position, Composite parent) {
  // We add controls only to the BOTTOM position.
  if (position == UI_POSITION.BOTTOM) {
    portLabel = new Label(parent, SWT.NONE);
    portLabel.setVisible(false);
    portLabel.setText(Messages.getString("NEW_SERVER_DIALOG_PORT"));

    portText = new Text(parent, SWT.SINGLE | SWT.BORDER);
    portText.setVisible(false);
    portText.setText(String.valueOf(LocalAppEngineServerBehaviour.DEFAULT_SERVER_PORT));
    portText.addVerifyListener(new PortChangeMonitor());
    portText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

    FieldDecorationRegistry registry = FieldDecorationRegistry.getDefault();
    Image errorImage = registry.getFieldDecoration(FieldDecorationRegistry.DEC_ERROR).getImage();

    portDecoration = new ControlDecoration(portText, SWT.LEFT | SWT.TOP);
    portDecoration.setDescriptionText(Messages.getString("NEW_SERVER_DIALOG_INVALID_PORT_VALUE"));
    portDecoration.setImage(errorImage);
    portDecoration.hide();
  }
}
 

private void showContentAssistDecoration( AssistField smartField,
		boolean show )
{
	FieldDecoration dec = getCueDecoration( );
	ControlDecoration cd = smartField.controlDecoration;
	if ( show )
	{
		cd.setImage( dec.getImage( ) );
		cd.setDescriptionText( dec.getDescription( ) );
		cd.setShowOnlyOnFocus( true );
		cd.show( );
	}
	else
	{
		cd.hide( );
	}
}
 

private void showWarningDecoration( AssistField smartField, boolean show )
{
	FieldDecoration dec = smartField.getWarningDecoration( );
	ControlDecoration cd = smartField.controlDecoration;
	if ( show )
	{
		cd.setImage( dec.getImage( ) );
		cd.setDescriptionText( dec.getDescription( ) );
		cd.setShowOnlyOnFocus( false );
		cd.show( );
	}
	else
	{
		cd.hide( );
	}
}
 

private void showErrorDecoration( AssistField smartField, boolean show )
{
	FieldDecoration dec = smartField.getErrorDecoration( );
	ControlDecoration cd = smartField.controlDecoration;
	if ( show )
	{
		cd.setImage( dec.getImage( ) );
		cd.setDescriptionText( dec.getDescription( ) );
		cd.setShowOnlyOnFocus( false );
		cd.show( );
	}
	else
	{
		cd.hide( );
	}
}
 

public void requestVerification() {
  boolean verified = true;
  for (IGenericTransactionField field : transaction.getFields()) {
    String[] message = new String[1];
    ControlDecoration deco = decorators.get(field.getLabel());
    if (field.verify(message)) {
      deco.hide();
    }
    else {
      deco.setDescriptionText(message[0]);
      deco.show();
      verified = false;
    }
  }

  createPage._canFlipToNextPage = verified;
  try {
    getContainer().updateButtons();
  }
  catch (Exception e) {}
}
 

protected void createTextViewer() {
	viewer = createViewer(mc);
	viewer.getControl().setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create());
	configureTextViewer();
	addLineStyleListener();
	helpDecoration = new ControlDecoration(viewer.getControl(), SWT.TOP | SWT.RIGHT, this);
	helpDecoration.setImage(JFaceResources.getImage(Dialog.DLG_IMG_HELP));
	helpDecoration.setDescriptionText(Messages.patternViewerHint);
	helpDecoration.setMarginWidth(2);
	helpDecoration.hide();

	hintDecoration = new ControlDecoration(viewer.getControl(), SWT.TOP | SWT.LEFT, this);
	hintDecoration.setImage(Pics.getImage(PicsConstants.hint));
	hintDecoration.setMarginWidth(2);
	hintDecoration.setShowHover(true);
	hintDecoration.setShowOnlyOnFocus(true);
	hintDecoration.hide();

	viewer.addTextListener(new ITextListener() {

		@Override
		public void textChanged(final TextEvent event) {
			viewer.getTextWidget().notifyListeners(SWT.Modify, new Event());
		}
	});

	helpDecoration.show();
}
 

public static boolean validateClaferInheritance(final String inheritanceName, final boolean required, final ControlDecoration decoration) {
	boolean valid = true;

	final String result = getInheritanceValidationMessage(inheritanceName, required);
	if (!result.isEmpty()) {
		decoration.setImage(UIConstants.DEC_ERROR);
		decoration.setDescriptionText(result);
		decoration.show();
		valid = false;
	} else {
		decoration.hide();
	}

	return valid;
}
 

@Override
public void createControl(Composite parent) {
  Composite composite = new Composite(parent, SWT.NONE);
  GridLayoutFactory.fillDefaults().numColumns(2).margins(10, 10)
      .spacing(20, 5).applyTo(composite);

  /* generate the wizard fields */
  for (IGenericTransactionField field : transaction.getFields()) {
    Label label = new Label(composite, SWT.NONE);
    label.setText(field.getLabel());

    Control control = field.createControl(composite);
    if (control instanceof Text && (control.getStyle() & SWT.V_SCROLL) != 0) {
      GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL)
          .grab(true, true).applyTo(control);
    }
    else {
      GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER)
          .grab(true, false).applyTo(control);
    }
    ControlDecoration deco = new ControlDecoration(control, SWT.TOP
        | SWT.RIGHT);
    deco.setImage(errorImage);
    deco.hide();
    decorators.put(field.getLabel(), deco);
  }
  setControl(composite);
}
 

@Override
protected Control createDialogArea(Composite parent) {
  Composite container = (Composite) super.createDialogArea(parent);
  GridLayout layout = new GridLayout(2, false);
  layout.marginRight = 5;
  layout.marginLeft = 10;
  container.setLayout(layout);

  Label feeLabel = new Label(container, SWT.NONE);
  feeLabel.setText("Fee");

  feeText = new Text(container, SWT.BORDER);
  feeText
      .setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
  feeText.setText(Integer.toString(minimumFee));

  decoFee = new ControlDecoration(feeText, SWT.TOP | SWT.RIGHT);
  decoFee.setImage(errorImage);
  decoFee.hide();

  Label deadlineLabel = new Label(container, SWT.NONE);
  deadlineLabel.setText("Deadline");

  deadlineText = new Text(container, SWT.BORDER);
  deadlineText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false,
      1, 1));
  deadlineText.setText(Integer.toString(deadline));

  decoDeadline = new ControlDecoration(deadlineText, SWT.TOP | SWT.RIGHT);
  decoDeadline.setImage(errorImage);
  decoDeadline.hide();

  ModifyListener listener = new ModifyListener() {

    @Override
    public void modifyText(ModifyEvent e) {
      Button button = getButton(IDialogConstants.OK_ID);
      if (button != null) {
        button.setEnabled(verifyInput());
      }
    }
  };
  feeText.addModifyListener(listener);
  deadlineText.addModifyListener(listener);

  return container;
}
 

private void createQueryParametersTable(final Composite parent) {
    final Composite composite = new Composite(parent, SWT.NONE);
    composite.setLayoutData(GridDataFactory.fillDefaults().span(2, 1).grab(true, true).create());
    composite.setLayout(GridLayoutFactory.fillDefaults().numColumns(1).margins(0, 0).spacing(0, 2).create());

    final Label parameterLabel = new Label(composite, SWT.NONE);
    parameterLabel.setLayoutData(GridDataFactory.fillDefaults().align(SWT.LEFT, SWT.CENTER).create());
    parameterLabel.setText(Messages.parameters);

    final ControlDecoration parameterDecoration = new ControlDecoration(parameterLabel, SWT.RIGHT);
    parameterDecoration.setShowOnlyOnFocus(false);
    parameterDecoration.setDescriptionText(Messages.paginationParameterHint);
    parameterDecoration.setImage(Pics.getImage(PicsConstants.hint));
    parameterDecoration.hide();
    observeQuerySingleSelection.addValueChangeListener(new IValueChangeListener() {

        @Override
        public void handleValueChange(final ValueChangeEvent event) {
            final Object newValue = event.diff.getNewValue();
            if (newValue instanceof Expression) {
                if (List.class.getName().equals(((Expression) newValue).getReturnType())) {
                    parameterDecoration.show();
                } else {
                    parameterDecoration.hide();
                }
            }

        }
    });

    final TableViewer parametersTableViewer = new TableViewer(composite,
            SWT.FULL_SELECTION | SWT.BORDER | SWT.V_SCROLL);
    parametersTableViewer.getControl()
            .setLayoutData(GridDataFactory.fillDefaults().grab(true, true).hint(SWT.DEFAULT, 80).create());
    parametersTableViewer.getTable().setLinesVisible(true);
    parametersTableViewer.getTable().setHeaderVisible(true);
    parametersTableViewer.setContentProvider(new ObservableListContentProvider());

    queryParameterObserveDetailList = EMFObservables.observeDetailList(Realm.getDefault(),
            observeQuerySingleSelection,
            ExpressionPackage.Literals.EXPRESSION__REFERENCED_ELEMENTS);

    final TableLayout tableLayout = new TableLayout();
    tableLayout.addColumnData(new ColumnWeightData(1, true));
    tableLayout.addColumnData(new ColumnWeightData(1, true));
    parametersTableViewer.getTable().setLayout(tableLayout);

    createNameColumn(parametersTableViewer);
    createValueColumn(parametersTableViewer);

    parametersTableViewer.setInput(queryParameterObserveDetailList);
}
 

protected void createTextControl(final int style, final TabbedPropertySheetWidgetFactory widgetFactory) {
    if (expressionProposalLableProvider == null) {
        expressionProposalLableProvider = new ExpressionLabelProvider();
    }
    contentAssistText = new ContentAssistText(control, expressionProposalLableProvider, style);

    textControl = contentAssistText.getTextControl();
    if (widgetFactory != null) {
        widgetFactory.adapt(textControl, false, false);
    }
    textControl.addDisposeListener(disposeListener);
    textTooltip = new DefaultToolTip(textControl) {

        @Override
        protected boolean shouldCreateToolTip(final Event event) {
            return super.shouldCreateToolTip(event) && getText(event) != null;
        }
    };
    textTooltip.setShift(new Point(5, 5));
    textTooltip.setRespectMonitorBounds(true);
    textTooltip.setPopupDelay(100);

    typeDecoration = new ControlDecoration(contentAssistText.getToolbar(), SWT.LEFT, control);
    typeDecoration.setMarginWidth(0);

    messageDecoration = new ControlDecoration(contentAssistText, SWT.LEFT, control);
    messageDecoration.setShowHover(true);
    messageDecoration.setMarginWidth(1);
    messageDecoration.hide();

    contentAssistText.addContentAssistListener(this);
    autoCompletion = contentAssistText.getAutocompletion();
    autoCompletion.addExpressionProposalListener(this);

    int indent = 0;
    if ((style & SWT.PASSWORD) != 0) {
        isPassword = true;
    }
    if ((style & SWT.BORDER) != 0) {
        indent = 16;
    }
    contentAssistText.setLayoutData(GridDataFactory.swtDefaults().align(SWT.FILL, SWT.FILL).indent(indent, 0)
            .grab(true, false).create());
}
 

public AliasControl(Composite parent, int style, Long accountId,
    INxtService nxt, IStylingEngine engine, IUserService userService,
    UISynchronize sync, IContactsService contactsService) {
  super(parent, style);
  this.accountId = accountId;
  this.nxt = nxt;
  this.user = userService.findUser(accountId);
  this.sync = sync;
  this.contactsService = contactsService;
  GridLayoutFactory.fillDefaults().spacing(10, 5).numColumns(3).applyTo(this);

  /* top bar (name, uri, register) */

  if (user != null && !user.getAccount().isReadOnly()) {
    aliasNameText = new Text(this, SWT.BORDER);
    GridDataFactory.swtDefaults().align(SWT.FILL, SWT.CENTER)
        .hint(100, SWT.DEFAULT).applyTo(aliasNameText);
    aliasNameText.setMessage("name");

    decoAliasNameText = new ControlDecoration(aliasNameText, SWT.TOP
        | SWT.RIGHT);
    decoAliasNameText.setImage(errorImage);
    decoAliasNameText.setDescriptionText("Alias is registered");
    decoAliasNameText.hide();

    aliasURIText = new Text(this, SWT.BORDER);
    GridDataFactory.swtDefaults().align(SWT.FILL, SWT.CENTER)
        .grab(true, false).applyTo(aliasURIText);
    aliasURIText.setMessage("uri");

    aliasRegisterButton = new Button(this, SWT.PUSH);
    GridDataFactory.swtDefaults().align(SWT.FILL, SWT.CENTER)
        .applyTo(aliasRegisterButton);

    aliasRegisterButton.setText("Register");
    aliasRegisterButton.setEnabled(false);

    hookupAliasControls();
  }

  /* bottom bar table viewer */

  paginationContainer = new PaginationContainer(this, SWT.NONE);
  GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL).grab(true, true)
      .span(3, 1).applyTo(paginationContainer);

  aliasesViewer = new AliasViewer(paginationContainer.getViewerParent(),
      accountId, nxt, engine, userService, sync, contactsService);
  paginationContainer.setTableViewer(aliasesViewer, 100);

  aliasesViewer.addSelectionChangedListener(new ISelectionChangedListener() {

    @Override
    public void selectionChanged(SelectionChangedEvent event) {}
  });
}
 

public TextVarWarning( IVariables variables, Composite composite, int flags ) {
  super( composite, SWT.NONE );

  warningInterfaces = new ArrayList<IWarning>();

  FormLayout formLayout = new FormLayout();
  formLayout.marginWidth = 0;
  formLayout.marginHeight = 0;
  formLayout.marginTop = 0;
  formLayout.marginBottom = 0;

  this.setLayout( formLayout );

  // add a text field on it...
  wText = new TextVar( variables, this, flags );

  warningControlDecoration = new ControlDecoration( wText, SWT.CENTER | SWT.RIGHT );
  Image warningImage = GuiResource.getInstance().getImageWarning();
  warningControlDecoration.setImage( warningImage );
  warningControlDecoration.setDescriptionText( BaseMessages.getString( PKG, "TextVar.tooltip.FieldIsInUse" ) );
  warningControlDecoration.hide();

  // If something has changed, check the warning interfaces
  //
  wText.addModifyListener( new ModifyListener() {
    public void modifyText( ModifyEvent arg0 ) {

      // Verify all the warning interfaces.
      // Show the first that has a warning to show...
      //
      boolean foundOne = false;
      for ( IWarning warningInterface : warningInterfaces ) {
        IWarningMessage warningSituation =
          warningInterface.getWarningSituation( wText.getText(), wText, this );
        if ( warningSituation.isWarning() ) {
          foundOne = true;
          warningControlDecoration.show();
          warningControlDecoration.setDescriptionText( warningSituation.getWarningMessage() );
          break;
        }
      }
      if ( !foundOne ) {
        warningControlDecoration.hide();
      }
    }
  } );

  FormData fdText = new FormData();
  fdText.top = new FormAttachment( 0, 0 );
  fdText.left = new FormAttachment( 0, 0 );
  fdText.right = new FormAttachment( 100, -warningImage.getBounds().width );
  wText.setLayoutData( fdText );
}
 

public WarningText( Composite composite, int flags ) {
  super( composite, SWT.NONE );

  warningInterfaces = new ArrayList<WarningInterface>();

  FormLayout formLayout = new FormLayout();
  formLayout.marginWidth = 0;
  formLayout.marginHeight = 0;
  formLayout.marginTop = 0;
  formLayout.marginBottom = 0;

  this.setLayout( formLayout );

  // add a text field on it...
  wText = new Text( this, flags );

  warningControlDecoration = new ControlDecoration( wText, SWT.CENTER | SWT.RIGHT );
  Image warningImage = GUIResource.getInstance().getImageWarning();
  warningControlDecoration.setImage( warningImage );
  warningControlDecoration.setDescriptionText( BaseMessages.getString( PKG, "TextVar.tooltip.FieldIsInUse" ) );
  warningControlDecoration.hide();

  // If something has changed, check the warning interfaces
  //
  wText.addModifyListener( new ModifyListener() {
    public void modifyText( ModifyEvent arg0 ) {

      // Verify all the warning interfaces.
      // Show the first that has a warning to show...
      //
      boolean foundOne = false;
      for ( WarningInterface warningInterface : warningInterfaces ) {
        WarningMessageInterface warningSituation =
          warningInterface.getWarningSituation( wText.getText(), wText, this );
        if ( warningSituation.isWarning() ) {
          foundOne = true;
          warningControlDecoration.show();
          warningControlDecoration.setDescriptionText( warningSituation.getWarningMessage() );
          break;
        }
      }
      if ( !foundOne ) {
        warningControlDecoration.hide();
      }
    }
  } );

  FormData fdText = new FormData();
  fdText.top = new FormAttachment( 0, 0 );
  fdText.left = new FormAttachment( 0, 0 );
  fdText.right = new FormAttachment( 100, -warningImage.getBounds().width );
  wText.setLayoutData( fdText );
}
 

public Composite createPreferenceComposite(Composite parent, final IBuildParticipantWorkingCopy participant)
{
	Composite master = new Composite(parent, SWT.NONE);
	master.setLayout(GridLayoutFactory.fillDefaults().create());

	GridDataFactory fillHoriz = GridDataFactory.fillDefaults().grab(true, false);

	// JSON Options
	Group group = new Group(master, SWT.BORDER);
	group.setText(Messages.JSLintValidatorPreferenceCompositeFactory_OptionsTitle);
	group.setLayout(new GridLayout());
	group.setLayoutData(fillHoriz.create());

	Label label = new Label(group, SWT.WRAP);
	label.setText(Messages.JSLintValidatorPreferenceCompositeFactory_OptionsMsg);
	fillHoriz.applyTo(label);

	final Text text = new Text(group, SWT.MULTI | SWT.V_SCROLL);

	final ControlDecoration decoration = new ControlDecoration(text, SWT.LEFT | SWT.TOP);
	decoration.setDescriptionText(Messages.JSLintValidatorPreferenceCompositeFactory_OptionsParseError);
	decoration.setImage(PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_DEC_FIELD_ERROR));
	decoration.hide();

	text.setText(participant.getPreferenceString(IPreferenceConstants.JS_LINT_OPTIONS));
	fillHoriz.hint(SWT.DEFAULT, 100).applyTo(text);
	text.addModifyListener(new ModifyListener()
	{
		public void modifyText(ModifyEvent e)
		{
			decoration.hide();
			try
			{
				String optionsAsJSON = text.getText();
				JSON.parse(optionsAsJSON);
				participant.setPreference(IPreferenceConstants.JS_LINT_OPTIONS, text.getText());
			}
			catch (IllegalStateException e1)
			{
				decoration.show();
			}
		}
	});

	// Filters
	Composite filtersGroup = new ValidatorFiltersPreferenceComposite(master, participant);
	filtersGroup.setLayoutData(fillHoriz.grab(true, true).hint(SWT.DEFAULT, 150).create());

	return master;
}
 

public TextVarWarning( VariableSpace space, Composite composite, int flags ) {
  super( composite, SWT.NONE );

  warningInterfaces = new ArrayList<WarningInterface>();

  FormLayout formLayout = new FormLayout();
  formLayout.marginWidth = 0;
  formLayout.marginHeight = 0;
  formLayout.marginTop = 0;
  formLayout.marginBottom = 0;

  this.setLayout( formLayout );

  // add a text field on it...
  wText = new TextVar( space, this, flags );

  warningControlDecoration = new ControlDecoration( wText, SWT.CENTER | SWT.RIGHT );
  Image warningImage = GUIResource.getInstance().getImageWarning();
  warningControlDecoration.setImage( warningImage );
  warningControlDecoration.setDescriptionText( BaseMessages.getString( PKG, "TextVar.tooltip.FieldIsInUse" ) );
  warningControlDecoration.hide();

  // If something has changed, check the warning interfaces
  //
  wText.addModifyListener( new ModifyListener() {
    public void modifyText( ModifyEvent arg0 ) {

      // Verify all the warning interfaces.
      // Show the first that has a warning to show...
      //
      boolean foundOne = false;
      for ( WarningInterface warningInterface : warningInterfaces ) {
        WarningMessageInterface warningSituation =
          warningInterface.getWarningSituation( wText.getText(), wText, this );
        if ( warningSituation.isWarning() ) {
          foundOne = true;
          warningControlDecoration.show();
          warningControlDecoration.setDescriptionText( warningSituation.getWarningMessage() );
          break;
        }
      }
      if ( !foundOne ) {
        warningControlDecoration.hide();
      }
    }
  } );

  FormData fdText = new FormData();
  fdText.top = new FormAttachment( 0, 0 );
  fdText.left = new FormAttachment( 0, 0 );
  fdText.right = new FormAttachment( 100, -warningImage.getBounds().width );
  wText.setLayoutData( fdText );
}
 

/**
 * Creates a decoration with the given image for this text.
 *
 * Note that the decoration is only displayed in focus.
 */
public void createDecoration(Image decorationImage) {
	contentProposalDecoration = new ControlDecoration(this, SWT.TOP | SWT.LEFT);
	contentProposalDecoration.setImage(decorationImage);
	contentProposalDecoration.hide();
}
 

@Override
public void createControl(Composite parent) {
	super.createControl(parent);
	Composite composite = (Composite)getControl();
	Composite rootMapComposite = new Composite(composite, SWT.NONE);
	GridDataFactory.swtDefaults().align(SWT.FILL, SWT.BEGINNING).span(((GridLayout)composite.getLayout()).numColumns, 1).grab(true, false).indent(0, 40).applyTo(rootMapComposite);
	rootMapComposite.setLayout(new GridLayout(3, false));
	Label rootMapDescription = new Label(rootMapComposite, SWT.NONE);
	rootMapDescription.setText(Messages.NodeAttach_rootMapDescription);
	rootMapDescription.setLayoutData(new GridData(SWT.FILL, SWT.DEFAULT, true, false, 3, 1));
	GridDataFactory indentFactory = GridDataFactory.swtDefaults().indent(20, 0);
	Label remoteRootLabel = new Label(rootMapComposite, SWT.NONE);
	remoteRootLabel.setText(Messages.NodeAttach_remoteRoot);
	indentFactory.applyTo(remoteRootLabel);
	remoteRootText = new Text(rootMapComposite, SWT.BORDER);
	remoteRootText.setLayoutData(new GridData(SWT.FILL, SWT.DEFAULT, true, false, 2, 1));
	remoteRootText.addModifyListener(e -> {
		setDirty(true);
		updateLaunchConfigurationDialog();
	});
	Label localRootLabel = new Label(rootMapComposite, SWT.NONE);
	localRootLabel.setText(Messages.NodeAttach_localRoot);
	indentFactory.applyTo(localRootLabel);
	localRootText = new Text(rootMapComposite, SWT.BORDER);
	localRootText.setLayoutData(new GridData(SWT.FILL, SWT.DEFAULT, true, false));
	Button browseLocalButton = new Button(rootMapComposite, SWT.PUSH);
	browseLocalButton.setText(Messages.AbstractRunHTMLDebugTab_browse);
	browseLocalButton.addSelectionListener(SelectionListener.widgetSelectedAdapter(e -> {
		DirectoryDialog directoryDialog = new DirectoryDialog(browseLocalButton.getShell());
		directoryDialog.setText(Messages.NodeAttach_localRoot);
		String selectedDirString = directoryDialog.open();
		if (selectedDirString != null) {
			localRootText.setText(selectedDirString);
		}
	}));
	ControlDecoration invalidDirectoryDecoration = new ControlDecoration(localRootText, SWT.TOP | SWT.LEFT);
	invalidDirectoryDecoration.setImage(FieldDecorationRegistry.getDefault().getFieldDecoration(FieldDecorationRegistry.DEC_WARNING).getImage());
	invalidDirectoryDecoration.setDescriptionText(Messages.NodeAttach_invalidLocalRootDirectory);
	invalidDirectoryDecoration.hide();
	localRootText.addModifyListener(e -> {
		if (!localRootText.getText().isEmpty() && !new File(localRootText.getText()).isDirectory()) {
			invalidDirectoryDecoration.show();
			setWarningMessage(Messages.NodeAttach_invalidLocalRootDirectory);
		} else {
			invalidDirectoryDecoration.hide();
			setWarningMessage(null);
		}
		setDirty(true);
		updateLaunchConfigurationDialog();
	});
}
 

public WarningText( Composite composite, int flags ) {
  super( composite, SWT.NONE );

  warningInterfaces = new ArrayList<IWarning>();

  FormLayout formLayout = new FormLayout();
  formLayout.marginWidth = 0;
  formLayout.marginHeight = 0;
  formLayout.marginTop = 0;
  formLayout.marginBottom = 0;

  this.setLayout( formLayout );

  // add a text field on it...
  wText = new Text( this, flags );

  warningControlDecoration = new ControlDecoration( wText, SWT.CENTER | SWT.RIGHT );
  Image warningImage = GuiResource.getInstance().getImageWarning();
  warningControlDecoration.setImage( warningImage );
  warningControlDecoration.setDescriptionText( BaseMessages.getString( PKG, "TextVar.tooltip.FieldIsInUse" ) );
  warningControlDecoration.hide();

  // If something has changed, check the warning interfaces
  //
  wText.addModifyListener( new ModifyListener() {
    public void modifyText( ModifyEvent arg0 ) {

      // Verify all the warning interfaces.
      // Show the first that has a warning to show...
      //
      boolean foundOne = false;
      for ( IWarning warningInterface : warningInterfaces ) {
        IWarningMessage warningSituation =
          warningInterface.getWarningSituation( wText.getText(), wText, this );
        if ( warningSituation.isWarning() ) {
          foundOne = true;
          warningControlDecoration.show();
          warningControlDecoration.setDescriptionText( warningSituation.getWarningMessage() );
          break;
        }
      }
      if ( !foundOne ) {
        warningControlDecoration.hide();
      }
    }
  } );

  FormData fdText = new FormData();
  fdText.top = new FormAttachment( 0, 0 );
  fdText.left = new FormAttachment( 0, 0 );
  fdText.right = new FormAttachment( 100, -warningImage.getBounds().width );
  wText.setLayoutData( fdText );
}