plugins/org.eclipse.eef.ide.ui.ext.widgets.reference/src/org/eclipse/eef/ide/ui/ext/widgets/reference/internal/EEFExtMultipleReferenceLifecycleManager.java - eef/org.eclipse.eef - Git at Google

 /*******************************************************************************
  * Copyright (c) 2016, 2017 Obeo.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *    Obeo - initial API and implementation
  *******************************************************************************/
 package org.eclipse.eef.ide.ui.ext.widgets.reference.internal;

 import java.util.ArrayList;
 import java.util.List;

 import org.eclipse.eef.common.ui.api.IEEFFormContainer;
 import org.eclipse.eef.core.api.EditingContextAdapter;
 import org.eclipse.eef.core.ext.widgets.reference.internal.EEFExtReferenceController;
 import org.eclipse.eef.ext.widgets.reference.eefextwidgetsreference.EEFExtReferenceDescription;
 import org.eclipse.emf.common.util.BasicEList;
 import org.eclipse.emf.common.util.EList;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.EReference;
 import org.eclipse.emf.ecore.util.EcoreUtil;
 import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
 import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
 import org.eclipse.emf.edit.provider.IItemPropertySource;
 import org.eclipse.emf.edit.provider.ReflectiveItemProviderAdapterFactory;
 import org.eclipse.emf.edit.ui.celleditor.FeatureEditorDialog;
 import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
 import org.eclipse.emf.edit.ui.provider.ExtendedImageRegistry;
 import org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.LabelProvider;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jface.wizard.IWizard;
 import org.eclipse.jface.wizard.WizardDialog;
 import org.eclipse.sirius.common.interpreter.api.IInterpreter;
 import org.eclipse.sirius.common.interpreter.api.IVariableManager;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.ScrolledComposite;
 import org.eclipse.swt.graphics.Image;
 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.Control;
 import org.eclipse.swt.widgets.Table;

 /**
  * This lifecycle manager is used to handle the EEF Extension reference widget for multi-valued EReferences.
  *
  * @author sbegaudeau
  */
 public class EEFExtMultipleReferenceLifecycleManager extends AbstractEEFExtReferenceLifecycleManager {

 	/**
 	 * Minimal height of the table widget.
 	 */
 	private static final int TABLE_MINIMAL_HEIGHT = 150;

 	/**
 	 * The table viewer.
 	 */
 	private TableViewer tableViewer;

 	/**
 	 * The up button.
 	 */
 	private Button upButton;

 	/**
 	 * The listener for the up button.
 	 */
 	private ButtonSelectionListener upButtonListener;

 	/**
 	 * The down button.
 	 */
 	private Button downButton;

 	/**
 	 * The listener for the down button.
 	 */
 	private ButtonSelectionListener downButtonListener;

 	/**
 	 * The constructor.
 	 *
 	 * @param description
 	 *            The description of the reference
 	 * @param target
 	 *            The target
 	 * @param eReference
 	 *            The EReference to display
 	 * @param variableManager
 	 *            The variable manager
 	 * @param interpreter
 	 *            The interpreter
 	 * @param editingContextAdapter
 	 *            The context adapter
 	 */
 	public EEFExtMultipleReferenceLifecycleManager(EEFExtReferenceDescription description, EObject target, EReference eReference,
 			IVariableManager variableManager, IInterpreter interpreter, EditingContextAdapter editingContextAdapter) {
 		super(description, target, eReference, variableManager, interpreter, editingContextAdapter);
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.eef.ide.ui.api.widgets.AbstractEEFWidgetLifecycleManager#createMainControl(org.eclipse.swt.widgets.Composite,
 	 *      org.eclipse.eef.common.ui.api.IEEFFormContainer)
 	 */
 	@Override
 	protected void createMainControl(Composite parent, IEEFFormContainer formContainer) {
 		this.widgetFactory = formContainer.getWidgetFactory();

 		Composite referenceComposite = this.widgetFactory.createFlatFormComposite(parent);
 		GridLayout referenceGridLayout = new GridLayout(2, false);
 		referenceComposite.setLayout(referenceGridLayout);

 		GridData referenceCompositeGridData = new GridData(SWT.FILL, SWT.CENTER, true, false);
 		referenceComposite.setLayoutData(referenceCompositeGridData);

 		this.createTable(referenceComposite);

 		Composite buttonsComposite = this.widgetFactory.createFlatFormComposite(referenceComposite);
 		GridData buttonCompositeGridData = new GridData();
 		buttonCompositeGridData.verticalAlignment = SWT.BEGINNING;
 		buttonsComposite.setLayoutData(buttonCompositeGridData);

 		GridLayout buttonCompositeGridLayout = new GridLayout(1, false);
 		buttonCompositeGridLayout.marginHeight = 0;
 		buttonsComposite.setLayout(buttonCompositeGridLayout);

 		if (!this.eReference.isContainment()) {
 			Image browseImage = ExtendedImageRegistry.INSTANCE
 					.getImage(EEFExtReferenceUIPlugin.getPlugin().getImage(EEFExtReferenceUIPlugin.Implementation.BROWSE_ICON_PATH));
 			this.browseButton = this.createButton(buttonsComposite, browseImage);
 		}

 		Image addImage = ExtendedImageRegistry.INSTANCE
 				.getImage(EEFExtReferenceUIPlugin.getPlugin().getImage(EEFExtReferenceUIPlugin.Implementation.ADD_ICON_PATH));
 		Image removeImage = ExtendedImageRegistry.INSTANCE
 				.getImage(EEFExtReferenceUIPlugin.getPlugin().getImage(EEFExtReferenceUIPlugin.Implementation.REMOVE_ICON_PATH));
 		Image upImage = ExtendedImageRegistry.INSTANCE
 				.getImage(EEFExtReferenceUIPlugin.getPlugin().getImage(EEFExtReferenceUIPlugin.Implementation.UP_ICON_PATH));
 		Image downImage = ExtendedImageRegistry.INSTANCE
 				.getImage(EEFExtReferenceUIPlugin.getPlugin().getImage(EEFExtReferenceUIPlugin.Implementation.DOWN_ICON_PATH));

 		this.addButton = this.createButton(buttonsComposite, addImage);
 		this.removeButton = this.createButton(buttonsComposite, removeImage);
 		this.upButton = this.createButton(buttonsComposite, upImage);
 		this.downButton = this.createButton(buttonsComposite, downImage);

 		this.widgetFactory.paintBordersFor(parent);

 		this.controller = new EEFExtReferenceController(this.description, this.variableManager, this.interpreter, this.editingContextAdapter);
 	}

 	/**
 	 * Creates the table used to display the reference.
 	 *
 	 * @param parent
 	 *            The parent composite
 	 */
 	private void createTable(Composite parent) {
 		ScrolledComposite scrolledComposite = this.widgetFactory.createScrolledComposite(parent, SWT.NONE);
 		GridData gridData = new GridData();
 		gridData.grabExcessHorizontalSpace = true;
 		gridData.horizontalAlignment = SWT.FILL;
 		scrolledComposite.setLayoutData(gridData);

 		// CHECKSTYLE:OFF
 		int style = SWT.READ_ONLY | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.BORDER | SWT.SINGLE | SWT.VIRTUAL;
 		// CHECKSTYLE:ON

 		Table table = this.widgetFactory.createTable(scrolledComposite, style);
 		this.tableViewer = new TableViewer(table);

 		GridData tableGridData = new GridData(SWT.FILL, SWT.TOP, true, false, 1, 1);
 		tableGridData.horizontalIndent = VALIDATION_MARKER_OFFSET;
 		this.tableViewer.getTable().setLayoutData(tableGridData);

 		this.composedAdapterFactory = new ComposedAdapterFactory(ComposedAdapterFactory.Descriptor.Registry.INSTANCE);
 		this.composedAdapterFactory.addAdapterFactory(new ReflectiveItemProviderAdapterFactory());

 		this.tableViewer.setContentProvider(new EReferenceContentProvider(this.eReference));
 		this.tableViewer.setLabelProvider(new DelegatingStyledCellLabelProvider(
 				new AdapterFactoryLabelProvider.StyledLabelProvider(this.composedAdapterFactory, this.tableViewer)));

 		scrolledComposite.setContent(table);

 		final int clientWidth = scrolledComposite.getClientArea().width;
 		this.tableViewer.getTable().setSize(clientWidth, TABLE_MINIMAL_HEIGHT);

 		scrolledComposite.setExpandHorizontal(true);
 		scrolledComposite.setAlwaysShowScrollBars(true);
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#aboutToBeShown()
 	 */
 	@Override
 	public void aboutToBeShown() {
 		super.aboutToBeShown();

 		this.initializeMoveButton(Direction.UP);
 		this.initializeMoveButton(Direction.DOWN);
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#browseButtonCallback()
 	 */
 	@Override
 	protected void browseButtonCallback() {
 		Object adapter = this.composedAdapterFactory.adapt(this.target, IItemPropertySource.class);
 		if (adapter instanceof IItemPropertySource) {
 			IItemPropertySource propertySource = (IItemPropertySource) adapter;
 			IItemPropertyDescriptor propertyDescriptor = propertySource.getPropertyDescriptor(this.target, this.eReference);
 			if (propertyDescriptor != null) {
 				ArrayList<Object> choiceOfValues = new ArrayList<Object>(propertyDescriptor.getChoiceOfValues(this.target));

 				final AdapterFactoryLabelProvider adapterFactoryLabelProvider = new AdapterFactoryLabelProvider(this.composedAdapterFactory);
 				LabelProvider labelProvider = new LabelProvider() {
 					@Override
 					public String getText(Object object) {
 						return adapterFactoryLabelProvider.getText(object);
 					}

 					@Override
 					public Image getImage(Object object) {
 						return ExtendedImageRegistry.getInstance().getImage(adapterFactoryLabelProvider.getImage(object));
 					}
 				};
 				FeatureEditorDialog dialog = new FeatureEditorDialog(this.tableViewer.getTable().getShell(), labelProvider, this.target,
 						this.eReference, propertyDescriptor.getDisplayName(this.target), choiceOfValues);
 				dialog.open();

 				EList<?> result = dialog.getResult();
 				if (result != null) {
 					this.target.eSet(this.eReference, result);
 				}

 			}
 		}
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#addButtonCallback()
 	 */
 	@Override
 	protected void addButtonCallback() {
 		IWizard wizard = new EEFExtEObjectCreationWizard(this.target, this.eReference, this.editingContextAdapter);
 		WizardDialog wizardDialog = new WizardDialog(this.tableViewer.getTable().getShell(), wizard);
 		wizardDialog.open();
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#removeButtonCallback()
 	 */
 	@Override
 	protected void removeButtonCallback() {
 		this.editingContextAdapter.performModelChange(() -> {
 			List<Object> objects = selectionToList(tableViewer.getSelection());
 			for (Object object : objects) {
 				EcoreUtil.remove(target, eReference, object);
 			}
 		});
 	}

 	/**
 	 * Initializes the up button.
 	 *
 	 * @param direction
 	 *            The direction
 	 */
 	private void initializeMoveButton(final Direction direction) {
 		ButtonSelectionListener listener = new ButtonSelectionListener(this.editingContextAdapter, () -> this.moveButtonCallback(direction));

 		if (direction == Direction.UP) {
 			this.upButtonListener = listener;
 			this.upButton.addSelectionListener(this.upButtonListener);
 			this.upButton.setToolTipText(Messages.ReferenceUpButton_tooltipText);
 		} else {
 			this.downButtonListener = listener;
 			this.downButton.addSelectionListener(this.downButtonListener);
 			this.downButton.setToolTipText(Messages.ReferenceDownButton_tooltipText);
 		}
 	}

 	/**
 	 * This method is called once the move button is clicked in order to move the selected element up or down depending
 	 * of the given direction.
 	 *
 	 * @param direction
 	 *            The direction
 	 */
 	private void moveButtonCallback(Direction direction) {
 		List<Object> objects = this.selectionToList(this.tableViewer.getSelection());

 		EList<?> values = this.getValues();
 		for (Object object : objects) {
 			if (direction == Direction.UP) {
 				values.move(Math.max(0, values.indexOf(object) - 1), values.indexOf(object));
 			} else {
 				values.move(Math.min(values.size() - 1, values.indexOf(object) + 1), values.indexOf(object));
 			}
 		}
 	}

 	/**
 	 * Returns the value of the reference for the self EObject.
 	 *
 	 * @return The value of the reference for the self EObject or <code>null</code> if it could not be found
 	 */
 	private EList<?> getValues() {
 		Object value = this.target.eGet(this.eReference);
 		if (value instanceof EList<?>) {
 			return (EList<?>) value;
 		}
 		return new BasicEList<>();
 	}

 	/**
 	 * Returns a list containing all the objects of the given selection.
 	 *
 	 * @param selection
 	 *            The selection
 	 * @return The objects of the given selection
 	 */
 	private List<Object> selectionToList(ISelection selection) {
 		List<Object> objects = new ArrayList<>();
 		if (selection instanceof IStructuredSelection) {
 			IStructuredSelection structuredSelection = (IStructuredSelection) selection;
 			for (Object object : structuredSelection.toArray()) {
 				objects.add(object);
 			}
 		}
 		return objects;
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#refresh()
 	 */
 	@Override
 	public void refresh() {
 		super.refresh();

 		this.tableViewer.setInput(this.target);

 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#setEnabled(boolean)
 	 */
 	@Override
 	protected void setEnabled(boolean isEnabled) {
 		super.setEnabled(isEnabled);

 		if (this.upButton != null && !this.upButton.isDisposed()) {
 			this.upButton.setEnabled(isEnabled);
 		}
 		if (this.downButton != null && !this.downButton.isDisposed()) {
 			this.downButton.setEnabled(isEnabled);
 		}
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#aboutToBeHidden()
 	 */
 	@Override
 	public void aboutToBeHidden() {
 		super.aboutToBeHidden();

 		this.removeListener(this.upButton, this.upButtonListener);
 		this.removeListener(this.downButton, this.downButtonListener);
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.eef.ide.ui.api.widgets.AbstractEEFLifecycleManager#getValidationControl()
 	 */
 	@Override
 	protected Control getValidationControl() {
 		return this.tableViewer.getTable().getParent();
 	}

 	/**
 	 * This enumeration is used for the direction of the up and down buttons.
 	 *
 	 * @author sbegaudeau
 	 */
 	private static enum Direction {
 		/**
 		 * Up.
 		 */
 		UP,

 		/**
 		 * Down.
 		 */
 		DOWN
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2016, 2017 Obeo.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* Obeo - initial API and implementation
	*******************************************************************************/
	package org.eclipse.eef.ide.ui.ext.widgets.reference.internal;

	import java.util.ArrayList;
	import java.util.List;

	import org.eclipse.eef.common.ui.api.IEEFFormContainer;
	import org.eclipse.eef.core.api.EditingContextAdapter;
	import org.eclipse.eef.core.ext.widgets.reference.internal.EEFExtReferenceController;
	import org.eclipse.eef.ext.widgets.reference.eefextwidgetsreference.EEFExtReferenceDescription;
	import org.eclipse.emf.common.util.BasicEList;
	import org.eclipse.emf.common.util.EList;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.ecore.EReference;
	import org.eclipse.emf.ecore.util.EcoreUtil;
	import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
	import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
	import org.eclipse.emf.edit.provider.IItemPropertySource;
	import org.eclipse.emf.edit.provider.ReflectiveItemProviderAdapterFactory;
	import org.eclipse.emf.edit.ui.celleditor.FeatureEditorDialog;
	import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
	import org.eclipse.emf.edit.ui.provider.ExtendedImageRegistry;
	import org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.LabelProvider;
	import org.eclipse.jface.viewers.TableViewer;
	import org.eclipse.jface.wizard.IWizard;
	import org.eclipse.jface.wizard.WizardDialog;
	import org.eclipse.sirius.common.interpreter.api.IInterpreter;
	import org.eclipse.sirius.common.interpreter.api.IVariableManager;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.ScrolledComposite;
	import org.eclipse.swt.graphics.Image;
	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.Control;
	import org.eclipse.swt.widgets.Table;

	/**
	* This lifecycle manager is used to handle the EEF Extension reference widget for multi-valued EReferences.
	*
	* @author sbegaudeau
	*/
	public class EEFExtMultipleReferenceLifecycleManager extends AbstractEEFExtReferenceLifecycleManager {

	/**
	* Minimal height of the table widget.
	*/
	private static final int TABLE_MINIMAL_HEIGHT = 150;

	/**
	* The table viewer.
	*/
	private TableViewer tableViewer;

	/**
	* The up button.
	*/
	private Button upButton;

	/**
	* The listener for the up button.
	*/
	private ButtonSelectionListener upButtonListener;

	/**
	* The down button.
	*/
	private Button downButton;

	/**
	* The listener for the down button.
	*/
	private ButtonSelectionListener downButtonListener;

	/**
	* The constructor.
	*
	* @param description
	* The description of the reference
	* @param target
	* The target
	* @param eReference
	* The EReference to display
	* @param variableManager
	* The variable manager
	* @param interpreter
	* The interpreter
	* @param editingContextAdapter
	* The context adapter
	*/
	public EEFExtMultipleReferenceLifecycleManager(EEFExtReferenceDescription description, EObject target, EReference eReference,
	IVariableManager variableManager, IInterpreter interpreter, EditingContextAdapter editingContextAdapter) {
	super(description, target, eReference, variableManager, interpreter, editingContextAdapter);
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.eef.ide.ui.api.widgets.AbstractEEFWidgetLifecycleManager#createMainControl(org.eclipse.swt.widgets.Composite,
	* org.eclipse.eef.common.ui.api.IEEFFormContainer)
	*/
	@Override
	protected void createMainControl(Composite parent, IEEFFormContainer formContainer) {
	this.widgetFactory = formContainer.getWidgetFactory();

	Composite referenceComposite = this.widgetFactory.createFlatFormComposite(parent);
	GridLayout referenceGridLayout = new GridLayout(2, false);
	referenceComposite.setLayout(referenceGridLayout);

	GridData referenceCompositeGridData = new GridData(SWT.FILL, SWT.CENTER, true, false);
	referenceComposite.setLayoutData(referenceCompositeGridData);

	this.createTable(referenceComposite);

	Composite buttonsComposite = this.widgetFactory.createFlatFormComposite(referenceComposite);
	GridData buttonCompositeGridData = new GridData();
	buttonCompositeGridData.verticalAlignment = SWT.BEGINNING;
	buttonsComposite.setLayoutData(buttonCompositeGridData);

	GridLayout buttonCompositeGridLayout = new GridLayout(1, false);
	buttonCompositeGridLayout.marginHeight = 0;
	buttonsComposite.setLayout(buttonCompositeGridLayout);

	if (!this.eReference.isContainment()) {
	Image browseImage = ExtendedImageRegistry.INSTANCE
	.getImage(EEFExtReferenceUIPlugin.getPlugin().getImage(EEFExtReferenceUIPlugin.Implementation.BROWSE_ICON_PATH));
	this.browseButton = this.createButton(buttonsComposite, browseImage);
	}

	Image addImage = ExtendedImageRegistry.INSTANCE
	.getImage(EEFExtReferenceUIPlugin.getPlugin().getImage(EEFExtReferenceUIPlugin.Implementation.ADD_ICON_PATH));
	Image removeImage = ExtendedImageRegistry.INSTANCE
	.getImage(EEFExtReferenceUIPlugin.getPlugin().getImage(EEFExtReferenceUIPlugin.Implementation.REMOVE_ICON_PATH));
	Image upImage = ExtendedImageRegistry.INSTANCE
	.getImage(EEFExtReferenceUIPlugin.getPlugin().getImage(EEFExtReferenceUIPlugin.Implementation.UP_ICON_PATH));
	Image downImage = ExtendedImageRegistry.INSTANCE
	.getImage(EEFExtReferenceUIPlugin.getPlugin().getImage(EEFExtReferenceUIPlugin.Implementation.DOWN_ICON_PATH));

	this.addButton = this.createButton(buttonsComposite, addImage);
	this.removeButton = this.createButton(buttonsComposite, removeImage);
	this.upButton = this.createButton(buttonsComposite, upImage);
	this.downButton = this.createButton(buttonsComposite, downImage);

	this.widgetFactory.paintBordersFor(parent);

	this.controller = new EEFExtReferenceController(this.description, this.variableManager, this.interpreter, this.editingContextAdapter);
	}

	/**
	* Creates the table used to display the reference.
	*
	* @param parent
	* The parent composite
	*/
	private void createTable(Composite parent) {
	ScrolledComposite scrolledComposite = this.widgetFactory.createScrolledComposite(parent, SWT.NONE);
	GridData gridData = new GridData();
	gridData.grabExcessHorizontalSpace = true;
	gridData.horizontalAlignment = SWT.FILL;
	scrolledComposite.setLayoutData(gridData);

	// CHECKSTYLE:OFF
	int style = SWT.READ_ONLY \| SWT.V_SCROLL \| SWT.FULL_SELECTION \| SWT.BORDER \| SWT.SINGLE \| SWT.VIRTUAL;
	// CHECKSTYLE:ON

	Table table = this.widgetFactory.createTable(scrolledComposite, style);
	this.tableViewer = new TableViewer(table);

	GridData tableGridData = new GridData(SWT.FILL, SWT.TOP, true, false, 1, 1);
	tableGridData.horizontalIndent = VALIDATION_MARKER_OFFSET;
	this.tableViewer.getTable().setLayoutData(tableGridData);

	this.composedAdapterFactory = new ComposedAdapterFactory(ComposedAdapterFactory.Descriptor.Registry.INSTANCE);
	this.composedAdapterFactory.addAdapterFactory(new ReflectiveItemProviderAdapterFactory());

	this.tableViewer.setContentProvider(new EReferenceContentProvider(this.eReference));
	this.tableViewer.setLabelProvider(new DelegatingStyledCellLabelProvider(
	new AdapterFactoryLabelProvider.StyledLabelProvider(this.composedAdapterFactory, this.tableViewer)));

	scrolledComposite.setContent(table);

	final int clientWidth = scrolledComposite.getClientArea().width;
	this.tableViewer.getTable().setSize(clientWidth, TABLE_MINIMAL_HEIGHT);

	scrolledComposite.setExpandHorizontal(true);
	scrolledComposite.setAlwaysShowScrollBars(true);
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#aboutToBeShown()
	*/
	@Override
	public void aboutToBeShown() {
	super.aboutToBeShown();

	this.initializeMoveButton(Direction.UP);
	this.initializeMoveButton(Direction.DOWN);
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#browseButtonCallback()
	*/
	@Override
	protected void browseButtonCallback() {
	Object adapter = this.composedAdapterFactory.adapt(this.target, IItemPropertySource.class);
	if (adapter instanceof IItemPropertySource) {
	IItemPropertySource propertySource = (IItemPropertySource) adapter;
	IItemPropertyDescriptor propertyDescriptor = propertySource.getPropertyDescriptor(this.target, this.eReference);
	if (propertyDescriptor != null) {
	ArrayList<Object> choiceOfValues = new ArrayList<Object>(propertyDescriptor.getChoiceOfValues(this.target));

	final AdapterFactoryLabelProvider adapterFactoryLabelProvider = new AdapterFactoryLabelProvider(this.composedAdapterFactory);
	LabelProvider labelProvider = new LabelProvider() {
	@Override
	public String getText(Object object) {
	return adapterFactoryLabelProvider.getText(object);
	}

	@Override
	public Image getImage(Object object) {
	return ExtendedImageRegistry.getInstance().getImage(adapterFactoryLabelProvider.getImage(object));
	}
	};
	FeatureEditorDialog dialog = new FeatureEditorDialog(this.tableViewer.getTable().getShell(), labelProvider, this.target,
	this.eReference, propertyDescriptor.getDisplayName(this.target), choiceOfValues);
	dialog.open();

	EList<?> result = dialog.getResult();
	if (result != null) {
	this.target.eSet(this.eReference, result);
	}

	}
	}
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#addButtonCallback()
	*/
	@Override
	protected void addButtonCallback() {
	IWizard wizard = new EEFExtEObjectCreationWizard(this.target, this.eReference, this.editingContextAdapter);
	WizardDialog wizardDialog = new WizardDialog(this.tableViewer.getTable().getShell(), wizard);
	wizardDialog.open();
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#removeButtonCallback()
	*/
	@Override
	protected void removeButtonCallback() {
	this.editingContextAdapter.performModelChange(() -> {
	List<Object> objects = selectionToList(tableViewer.getSelection());
	for (Object object : objects) {
	EcoreUtil.remove(target, eReference, object);
	}
	});
	}

	/**
	* Initializes the up button.
	*
	* @param direction
	* The direction
	*/
	private void initializeMoveButton(final Direction direction) {
	ButtonSelectionListener listener = new ButtonSelectionListener(this.editingContextAdapter, () -> this.moveButtonCallback(direction));

	if (direction == Direction.UP) {
	this.upButtonListener = listener;
	this.upButton.addSelectionListener(this.upButtonListener);
	this.upButton.setToolTipText(Messages.ReferenceUpButton_tooltipText);
	} else {
	this.downButtonListener = listener;
	this.downButton.addSelectionListener(this.downButtonListener);
	this.downButton.setToolTipText(Messages.ReferenceDownButton_tooltipText);
	}
	}

	/**
	* This method is called once the move button is clicked in order to move the selected element up or down depending
	* of the given direction.
	*
	* @param direction
	* The direction
	*/
	private void moveButtonCallback(Direction direction) {
	List<Object> objects = this.selectionToList(this.tableViewer.getSelection());

	EList<?> values = this.getValues();
	for (Object object : objects) {
	if (direction == Direction.UP) {
	values.move(Math.max(0, values.indexOf(object) - 1), values.indexOf(object));
	} else {
	values.move(Math.min(values.size() - 1, values.indexOf(object) + 1), values.indexOf(object));
	}
	}
	}

	/**
	* Returns the value of the reference for the self EObject.
	*
	* @return The value of the reference for the self EObject or <code>null</code> if it could not be found
	*/
	private EList<?> getValues() {
	Object value = this.target.eGet(this.eReference);
	if (value instanceof EList<?>) {
	return (EList<?>) value;
	}
	return new BasicEList<>();
	}

	/**
	* Returns a list containing all the objects of the given selection.
	*
	* @param selection
	* The selection
	* @return The objects of the given selection
	*/
	private List<Object> selectionToList(ISelection selection) {
	List<Object> objects = new ArrayList<>();
	if (selection instanceof IStructuredSelection) {
	IStructuredSelection structuredSelection = (IStructuredSelection) selection;
	for (Object object : structuredSelection.toArray()) {
	objects.add(object);
	}
	}
	return objects;
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#refresh()
	*/
	@Override
	public void refresh() {
	super.refresh();

	this.tableViewer.setInput(this.target);

	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#setEnabled(boolean)
	*/
	@Override
	protected void setEnabled(boolean isEnabled) {
	super.setEnabled(isEnabled);

	if (this.upButton != null && !this.upButton.isDisposed()) {
	this.upButton.setEnabled(isEnabled);
	}
	if (this.downButton != null && !this.downButton.isDisposed()) {
	this.downButton.setEnabled(isEnabled);
	}
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.eef.ide.ui.ext.widgets.reference.internal.AbstractEEFExtReferenceLifecycleManager#aboutToBeHidden()
	*/
	@Override
	public void aboutToBeHidden() {
	super.aboutToBeHidden();

	this.removeListener(this.upButton, this.upButtonListener);
	this.removeListener(this.downButton, this.downButtonListener);
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.eef.ide.ui.api.widgets.AbstractEEFLifecycleManager#getValidationControl()
	*/
	@Override
	protected Control getValidationControl() {
	return this.tableViewer.getTable().getParent();
	}

	/**
	* This enumeration is used for the direction of the up and down buttons.
	*
	* @author sbegaudeau
	*/
	private static enum Direction {
	/**
	* Up.
	*/
	UP,

	/**
	* Down.
	*/
	DOWN
	}
	}