bundles/org.eclipse.emf.ecp.view.core.swt/src/org/eclipse/emf/ecp/view/internal/core/swt/renderer/XMLDateControlSWTRenderer.java - emfclient/org.eclipse.emf.ecp.core - Git at Google

 /*******************************************************************************
  * Copyright (c) 2011-2014 EclipseSource Muenchen GmbH and others.
  *
  * 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:
  * Eugen - initial API and implementation
  ******************************************************************************/
 package org.eclipse.emf.ecp.view.internal.core.swt.renderer;

 import java.text.DateFormat;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.Locale;
 import java.util.regex.Pattern;

 import javax.inject.Inject;
 import javax.xml.datatype.XMLGregorianCalendar;

 import org.eclipse.core.databinding.Binding;
 import org.eclipse.core.databinding.observable.value.IObservableValue;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.emf.ecore.EStructuralFeature;
 import org.eclipse.emf.ecp.edit.internal.swt.util.DateUtil;
 import org.eclipse.emf.ecp.edit.spi.swt.util.ECPDialogExecutor;
 import org.eclipse.emf.ecp.view.internal.core.swt.MessageKeys;
 import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
 import org.eclipse.emf.ecp.view.spi.core.swt.renderer.TextControlSWTRenderer;
 import org.eclipse.emf.ecp.view.spi.model.LabelAlignment;
 import org.eclipse.emf.ecp.view.spi.model.VControl;
 import org.eclipse.emf.ecp.view.spi.util.swt.ImageRegistryService;
 import org.eclipse.emf.ecp.view.template.model.VTViewTemplateProvider;
 import org.eclipse.emf.edit.command.SetCommand;
 import org.eclipse.emfforms.spi.common.locale.EMFFormsLocaleChangeListener;
 import org.eclipse.emfforms.spi.common.locale.EMFFormsLocaleProvider;
 import org.eclipse.emfforms.spi.common.report.AbstractReport;
 import org.eclipse.emfforms.spi.common.report.ReportService;
 import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedException;
 import org.eclipse.emfforms.spi.core.services.databinding.EMFFormsDatabinding;
 import org.eclipse.emfforms.spi.core.services.editsupport.EMFFormsEditSupport;
 import org.eclipse.emfforms.spi.core.services.label.EMFFormsLabelProvider;
 import org.eclipse.emfforms.spi.localization.EMFFormsLocalizationService;
 import org.eclipse.emfforms.spi.localization.LocalizationServiceHelper;
 import org.eclipse.emfforms.spi.swt.core.layout.SWTGridCell;
 import org.eclipse.jface.databinding.swt.WidgetProperties;
 import org.eclipse.jface.dialogs.IDialogLabelKeys;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.layout.GridDataFactory;
 import org.eclipse.jface.layout.GridLayoutFactory;
 import org.eclipse.jface.resource.JFaceResources;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.graphics.Rectangle;
 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.DateTime;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Text;
 import org.osgi.framework.FrameworkUtil;

 /**
  * @author Eugen
  *
  */
 public class XMLDateControlSWTRenderer extends TextControlSWTRenderer {

 	private final EMFFormsLocaleProvider localeProvider;
 	private final EMFFormsLocalizationService localizationService;
 	private final ImageRegistryService imageRegistryService;

 	/**
 	 * Default constructor.
 	 *
 	 * @param vElement the view model element to be rendered
 	 * @param viewContext the view context
 	 * @param reportService The {@link ReportService}
 	 * @param emfFormsDatabinding The {@link EMFFormsDatabinding}
 	 * @param emfFormsLabelProvider The {@link EMFFormsLabelProvider}
 	 * @param vtViewTemplateProvider The {@link VTViewTemplateProvider}
 	 * @param emfFormsEditSupport The {@link EMFFormsEditSupport}
 	 * @param localizationService The {@link EMFFormsLocalizationService}
 	 * @param localeProvider The {@link EMFFormsLocaleProvider}
 	 * @param imageRegistryService The {@link ImageRegistryService}
 	 */
 	@Inject
 	public XMLDateControlSWTRenderer(VControl vElement, ViewModelContext viewContext,
 		ReportService reportService,
 		EMFFormsDatabinding emfFormsDatabinding, EMFFormsLabelProvider emfFormsLabelProvider,
 		VTViewTemplateProvider vtViewTemplateProvider, EMFFormsEditSupport emfFormsEditSupport,
 		EMFFormsLocalizationService localizationService, EMFFormsLocaleProvider localeProvider,
 		ImageRegistryService imageRegistryService) {
 		super(vElement, viewContext, reportService, emfFormsDatabinding, emfFormsLabelProvider, vtViewTemplateProvider,
 			emfFormsEditSupport);
 		this.localizationService = localizationService;
 		this.localeProvider = localeProvider;
 		this.imageRegistryService = imageRegistryService;
 	}

 	private static final DateFormat CHECK_FORMAT = new SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH); //$NON-NLS-1$
 	private static final Pattern CHECK_PATTERN = Pattern.compile("^\\d{4}-\\d{2}-\\d{2}$"); //$NON-NLS-1$

 	/**
 	 * Selection adapter for the set date button.
 	 */
 	private final class SelectionAdapterExtension extends SelectionAdapter {
 		private final Control button;
 		private final Text text;

 		private SelectionAdapterExtension(Text text, Button button) {
 			this.text = text;
 			this.button = button;
 		}

 		@Override
 		public void widgetSelected(SelectionEvent e) {
 			if (dialog != null && !dialog.isDisposed()) {
 				dialog.dispose();
 				return;
 			}
 			IObservableValue modelValue;
 			EStructuralFeature eStructuralFeature;
 			try {
 				modelValue = getModelValue();
 				eStructuralFeature = (EStructuralFeature) modelValue.getValueType();
 			} catch (final DatabindingFailedException ex) {
 				getReportService().report(new AbstractReport(ex));
 				return;
 			}
 			dialog = new Shell(button.getShell(), SWT.NONE);
 			dialog.setLayout(new GridLayout(1, false));

 			final DateTime calendar = new DateTime(dialog, SWT.CALENDAR | SWT.BORDER);
 			final XMLGregorianCalendar gregorianCalendar = (XMLGregorianCalendar) modelValue.getValue();
 			final Calendar cal = Calendar.getInstance(localeProvider.getLocale());
 			if (gregorianCalendar != null) {
 				cal.setTime(gregorianCalendar.toGregorianCalendar().getTime());
 			}
 			calendar.setDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH));

 			final IObservableValue dateObserver = WidgetProperties.selection().observe(calendar);
 			final Binding binding = getDataBindingContext().bindValue(dateObserver, modelValue,
 				new DateTargetToModelUpdateStrategy(eStructuralFeature, text),
 				new DateModelToTargetUpdateStrategy(false, true));
 			binding.updateModelToTarget();

 			final Button okButton = new Button(dialog, SWT.PUSH);
 			okButton.setText(JFaceResources.getString(IDialogLabelKeys.OK_LABEL_KEY));
 			GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).grab(false, false).applyTo(okButton);
 			okButton.addSelectionListener(new SelectionAdapter() {
 				/**
 				 * {@inheritDoc}
 				 *
 				 * @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent)
 				 */
 				@Override
 				public void widgetSelected(SelectionEvent e) {
 					binding.updateTargetToModel();
 					binding.dispose();
 					dialog.close();
 				}
 			});

 			dialog.pack();
 			dialog.layout();
 			final Point dialogSize = dialog.getSize();
 			final Rectangle displayBounds = dialog.getDisplay().getBounds();
 			final Point buttonLocation = button.toDisplay(button.getSize().x, button.getSize().y);

 			// TODO what if dialogsize > displaybounds? + some other cases

 			int dialogX = buttonLocation.x - dialogSize.x;
 			int dialogY = buttonLocation.y;
 			if (dialogY + dialogSize.y > displayBounds.height) {
 				dialogY = dialogY - button.getSize().y - dialogSize.y;
 			}
 			if (dialogX + dialogSize.x > displayBounds.width) {
 				dialogX = dialogX - dialogSize.x;
 			} else if (dialogX - dialogSize.x < displayBounds.x) {
 				dialogX = buttonLocation.x - button.getSize().x;
 			}
 			dialog.setLocation(dialogX, dialogY);

 			dialog.open();
 		}
 	}

 	/**
 	 * Model to target strategy.
 	 */
 	private class DateModelToTargetUpdateStrategy extends ModelToTargetUpdateStrategy {

 		private final boolean toDate;

 		DateModelToTargetUpdateStrategy(boolean tooltip, boolean toDate) {
 			super(tooltip);
 			this.toDate = toDate;
 		}

 		DateModelToTargetUpdateStrategy(boolean tooltip) {
 			this(tooltip, false);
 		}

 		@Override
 		public Object convertValue(Object value) {
 			final DateFormat format = setupFormat();
 			final XMLGregorianCalendar gregorianCalendar = (XMLGregorianCalendar) value;
 			if (gregorianCalendar == null) {
 				return null;
 			}
 			final Date date = gregorianCalendar.toGregorianCalendar().getTime();
 			if (toDate) {
 				return date;
 			}
 			return format.format(date);
 		}

 		@Override
 		protected IStatus doSet(IObservableValue observableValue, Object value) {
 			if (value == null && toDate) {
 				return Status.OK_STATUS;
 			}
 			if (value == null && !toDate) {
 				value = ""; //$NON-NLS-1$
 			}
 			return super.doSet(observableValue, value);
 		}

 	}

 	/**
 	 * Target to model strategy.
 	 */
 	private class DateTargetToModelUpdateStrategy extends TargetToModelUpdateStrategy {

 		private final EStructuralFeature eStructuralFeature;
 		private final Text text;

 		DateTargetToModelUpdateStrategy(EStructuralFeature eStructuralFeature, Text text) {
 			super(eStructuralFeature.isUnsettable());
 			this.eStructuralFeature = eStructuralFeature;
 			this.text = text;

 		}

 		@Override
 		protected Object convertValue(final Object value) {
 			try {
 				Date date = null;
 				if (String.class.isInstance(value)) {
 					date = setupFormat().parse((String) value);
 				} else if (Date.class.isInstance(value)) {
 					date = (Date) value;
 				} else if (value == null) {
 					return value;
 				}
 				final String xmlFormat = CHECK_FORMAT.format(date);
 				if (!CHECK_PATTERN.matcher(xmlFormat).matches()) {
 					return revertToOldValue(value);
 				}
 				final String formatedDate = setupFormat().format(date);
 				text.setText(formatedDate);

 				final Calendar targetCal = Calendar.getInstance();
 				targetCal.setTime(date);
 				return DateUtil.convertOnlyDateToXMLGregorianCalendar(targetCal);
 			} catch (final ParseException ex) {
 				return revertToOldValue(value);
 			}
 		}

 		private Object revertToOldValue(final Object value) {

 			if (eStructuralFeature.getDefaultValue() == null && (value == null || value.equals(""))) { //$NON-NLS-1$
 				return null;
 			}

 			Object result;
 			try {
 				result = getModelValue().getValue();
 			} catch (final DatabindingFailedException ex) {
 				getReportService().report(new AbstractReport(ex));
 				return null;
 			}

 			final MessageDialog messageDialog = new MessageDialog(text.getShell(),
 				LocalizationServiceHelper.getString(getClass(), MessageKeys.XmlDateControlText_InvalidNumber), null,
 				LocalizationServiceHelper.getString(getClass(),
 					MessageKeys.XmlDateControlText_NumberInvalidValueWillBeUnset),
 				MessageDialog.ERROR,
 				new String[] { JFaceResources.getString(IDialogLabelKeys.OK_LABEL_KEY) }, 0);

 			new ECPDialogExecutor(messageDialog) {
 				@Override
 				public void handleResult(int codeResult) {

 				}
 			}.execute();

 			getDataBindingContext().updateTargets();

 			if (eStructuralFeature.isUnsettable() && result == null) {
 				return SetCommand.UNSET_VALUE;
 			}
 			return result;
 		}
 	}

 	private Shell dialog;
 	private EMFFormsLocaleChangeListener emfFormsLocaleChangeListener;
 	private Text text;

 	@Override
 	protected Control createSWTControl(Composite parent) {
 		final Composite main = new Composite(parent, SWT.NONE);
 		main.setBackground(parent.getBackground());
 		GridLayoutFactory.fillDefaults().numColumns(2).applyTo(main);
 		GridDataFactory.fillDefaults().grab(true, false).align(SWT.FILL, SWT.BEGINNING).applyTo(main);
 		final Control control = super.createSWTControl(main);
 		GridDataFactory.fillDefaults().grab(true, false).align(SWT.FILL, SWT.CENTER).applyTo(control);
 		final Button bDate = new Button(main, SWT.PUSH);
 		GridDataFactory.fillDefaults().grab(false, false).align(SWT.CENTER, SWT.CENTER).applyTo(bDate);
 		bDate.setImage(imageRegistryService.getImage(FrameworkUtil.getBundle(getClass()), "icons/date.png")); //$NON-NLS-1$
 		bDate.setData(CUSTOM_VARIANT, "org_eclipse_emf_ecp_control_xmldate"); //$NON-NLS-1$
 		text = (Text) Composite.class.cast(control).getChildren()[0];
 		bDate.addSelectionListener(new SelectionAdapterExtension(text, bDate));
 		return main;
 	}

 	@Override
 	protected String getTextMessage() {
 		return ((SimpleDateFormat) setupFormat()).toPattern();
 	}

 	@Override
 	protected String getTextVariantID() {
 		return "org_eclipse_emf_ecp_control_xmldate"; //$NON-NLS-1$
 	}

 	@Override
 	protected Binding[] createBindings(Control control) throws DatabindingFailedException {
 		final EStructuralFeature structuralFeature = (EStructuralFeature) getModelValue().getValueType();
 		final Text text = (Text) Composite.class.cast(Composite.class.cast(control).getChildren()[0]).getChildren()[0];

 		final IObservableValue value = WidgetProperties.text(SWT.FocusOut).observe(text);

 		final DateTargetToModelUpdateStrategy targetToModelUpdateStrategy = new DateTargetToModelUpdateStrategy(
 			structuralFeature, text);

 		final DateModelToTargetUpdateStrategy modelToTargetUpdateStrategy = new DateModelToTargetUpdateStrategy(false);

 		final Binding binding = getDataBindingContext().bindValue(value, getModelValue(),
 			targetToModelUpdateStrategy, modelToTargetUpdateStrategy);

 		final Binding tooltipBinding = createTooltipBinding(control, getModelValue(), getDataBindingContext(),
 			targetToModelUpdateStrategy, new DateModelToTargetUpdateStrategy(true));

 		emfFormsLocaleChangeListener = new EMFFormsLocaleChangeListener() {

 			/**
 			 * {@inheritDoc}
 			 *
 			 * @see org.eclipse.emfforms.spi.common.locale.EMFFormsLocaleChangeListener#notifyLocaleChange()
 			 */
 			@Override
 			public void notifyLocaleChange() {
 				text.setMessage(getTextMessage());
 				binding.updateModelToTarget();
 			}
 		};
 		localeProvider.addEMFFormsLocaleChangeListener(emfFormsLocaleChangeListener);

 		return new Binding[] { binding, tooltipBinding };
 	}

 	/**
 	 * Setups the {@link DateFormat}.
 	 *
 	 * @return the {@link DateFormat}
 	 */
 	protected DateFormat setupFormat() {
 		final DateFormat df = DateFormat.getDateInstance(DateFormat.MEDIUM, localeProvider.getLocale());
 		df.setLenient(false);
 		return df;
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.emf.ecp.view.spi.core.swt.SimpleControlSWTControlSWTRenderer#setValidationColor(org.eclipse.swt.widgets.Control,
 	 *      org.eclipse.swt.graphics.Color)
 	 */
 	@Override
 	protected void setValidationColor(Control control, Color validationColor) {
 		super.setValidationColor(Composite.class.cast(control).getChildren()[0], validationColor);
 	}

 	@Override
 	protected void setValidationForegroundColor(Control control, Color validationColor) {
 		super.setValidationForegroundColor(Composite.class.cast(control).getChildren()[0], validationColor);
 	}

 	@Override
 	protected void setControlEnabled(SWTGridCell gridCell, Control control, boolean enabled) {
 		if (getVElement().getLabelAlignment() == LabelAlignment.NONE && gridCell.getColumn() == 1
 			|| hasLeftLabelAlignment() && gridCell.getColumn() == 2) {
 			super.setControlEnabled(gridCell, Composite.class.cast(control).getChildren()[0], enabled);
 			((Button) ((Composite) control).getChildren()[1]).setVisible(enabled);
 		} else {
 			super.setControlEnabled(gridCell, control, enabled);
 		}
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.emf.ecp.view.spi.core.swt.renderer.TextControlSWTRenderer#getUnsetText()
 	 */
 	@Override
 	protected String getUnsetText() {
 		return localizationService
 			.getString(getClass(), MessageKeys.XmlDateControlText_NoDateSetClickToSetDate);
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.emf.ecp.view.spi.core.swt.SimpleControlSWTRenderer#dispose()
 	 */
 	@Override
 	protected void dispose() {
 		if (dialog != null && !dialog.isDisposed()) {
 			dialog.dispose();
 		}
 		localeProvider.removeEMFFormsLocaleChangeListener(emfFormsLocaleChangeListener);
 		super.dispose();
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2011-2014 EclipseSource Muenchen GmbH and others.
	*
	* 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:
	* Eugen - initial API and implementation
	******************************************************************************/
	package org.eclipse.emf.ecp.view.internal.core.swt.renderer;

	import java.text.DateFormat;
	import java.text.ParseException;
	import java.text.SimpleDateFormat;
	import java.util.Calendar;
	import java.util.Date;
	import java.util.Locale;
	import java.util.regex.Pattern;

	import javax.inject.Inject;
	import javax.xml.datatype.XMLGregorianCalendar;

	import org.eclipse.core.databinding.Binding;
	import org.eclipse.core.databinding.observable.value.IObservableValue;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.emf.ecore.EStructuralFeature;
	import org.eclipse.emf.ecp.edit.internal.swt.util.DateUtil;
	import org.eclipse.emf.ecp.edit.spi.swt.util.ECPDialogExecutor;
	import org.eclipse.emf.ecp.view.internal.core.swt.MessageKeys;
	import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
	import org.eclipse.emf.ecp.view.spi.core.swt.renderer.TextControlSWTRenderer;
	import org.eclipse.emf.ecp.view.spi.model.LabelAlignment;
	import org.eclipse.emf.ecp.view.spi.model.VControl;
	import org.eclipse.emf.ecp.view.spi.util.swt.ImageRegistryService;
	import org.eclipse.emf.ecp.view.template.model.VTViewTemplateProvider;
	import org.eclipse.emf.edit.command.SetCommand;
	import org.eclipse.emfforms.spi.common.locale.EMFFormsLocaleChangeListener;
	import org.eclipse.emfforms.spi.common.locale.EMFFormsLocaleProvider;
	import org.eclipse.emfforms.spi.common.report.AbstractReport;
	import org.eclipse.emfforms.spi.common.report.ReportService;
	import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedException;
	import org.eclipse.emfforms.spi.core.services.databinding.EMFFormsDatabinding;
	import org.eclipse.emfforms.spi.core.services.editsupport.EMFFormsEditSupport;
	import org.eclipse.emfforms.spi.core.services.label.EMFFormsLabelProvider;
	import org.eclipse.emfforms.spi.localization.EMFFormsLocalizationService;
	import org.eclipse.emfforms.spi.localization.LocalizationServiceHelper;
	import org.eclipse.emfforms.spi.swt.core.layout.SWTGridCell;
	import org.eclipse.jface.databinding.swt.WidgetProperties;
	import org.eclipse.jface.dialogs.IDialogLabelKeys;
	import org.eclipse.jface.dialogs.MessageDialog;
	import org.eclipse.jface.layout.GridDataFactory;
	import org.eclipse.jface.layout.GridLayoutFactory;
	import org.eclipse.jface.resource.JFaceResources;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.graphics.Color;
	import org.eclipse.swt.graphics.Point;
	import org.eclipse.swt.graphics.Rectangle;
	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.DateTime;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Text;
	import org.osgi.framework.FrameworkUtil;

	/**
	* @author Eugen
	*
	*/
	public class XMLDateControlSWTRenderer extends TextControlSWTRenderer {

	private final EMFFormsLocaleProvider localeProvider;
	private final EMFFormsLocalizationService localizationService;
	private final ImageRegistryService imageRegistryService;

	/**
	* Default constructor.
	*
	* @param vElement the view model element to be rendered
	* @param viewContext the view context
	* @param reportService The {@link ReportService}
	* @param emfFormsDatabinding The {@link EMFFormsDatabinding}
	* @param emfFormsLabelProvider The {@link EMFFormsLabelProvider}
	* @param vtViewTemplateProvider The {@link VTViewTemplateProvider}
	* @param emfFormsEditSupport The {@link EMFFormsEditSupport}
	* @param localizationService The {@link EMFFormsLocalizationService}
	* @param localeProvider The {@link EMFFormsLocaleProvider}
	* @param imageRegistryService The {@link ImageRegistryService}
	*/
	@Inject
	public XMLDateControlSWTRenderer(VControl vElement, ViewModelContext viewContext,
	ReportService reportService,
	EMFFormsDatabinding emfFormsDatabinding, EMFFormsLabelProvider emfFormsLabelProvider,
	VTViewTemplateProvider vtViewTemplateProvider, EMFFormsEditSupport emfFormsEditSupport,
	EMFFormsLocalizationService localizationService, EMFFormsLocaleProvider localeProvider,
	ImageRegistryService imageRegistryService) {
	super(vElement, viewContext, reportService, emfFormsDatabinding, emfFormsLabelProvider, vtViewTemplateProvider,
	emfFormsEditSupport);
	this.localizationService = localizationService;
	this.localeProvider = localeProvider;
	this.imageRegistryService = imageRegistryService;
	}

	private static final DateFormat CHECK_FORMAT = new SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH); //$NON-NLS-1$
	private static final Pattern CHECK_PATTERN = Pattern.compile("^\\d{4}-\\d{2}-\\d{2}$"); //$NON-NLS-1$

	/**
	* Selection adapter for the set date button.
	*/
	private final class SelectionAdapterExtension extends SelectionAdapter {
	private final Control button;
	private final Text text;

	private SelectionAdapterExtension(Text text, Button button) {
	this.text = text;
	this.button = button;
	}

	@Override
	public void widgetSelected(SelectionEvent e) {
	if (dialog != null && !dialog.isDisposed()) {
	dialog.dispose();
	return;
	}
	IObservableValue modelValue;
	EStructuralFeature eStructuralFeature;
	try {
	modelValue = getModelValue();
	eStructuralFeature = (EStructuralFeature) modelValue.getValueType();
	} catch (final DatabindingFailedException ex) {
	getReportService().report(new AbstractReport(ex));
	return;
	}
	dialog = new Shell(button.getShell(), SWT.NONE);
	dialog.setLayout(new GridLayout(1, false));

	final DateTime calendar = new DateTime(dialog, SWT.CALENDAR \| SWT.BORDER);
	final XMLGregorianCalendar gregorianCalendar = (XMLGregorianCalendar) modelValue.getValue();
	final Calendar cal = Calendar.getInstance(localeProvider.getLocale());
	if (gregorianCalendar != null) {
	cal.setTime(gregorianCalendar.toGregorianCalendar().getTime());
	}
	calendar.setDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH));

	final IObservableValue dateObserver = WidgetProperties.selection().observe(calendar);
	final Binding binding = getDataBindingContext().bindValue(dateObserver, modelValue,
	new DateTargetToModelUpdateStrategy(eStructuralFeature, text),
	new DateModelToTargetUpdateStrategy(false, true));
	binding.updateModelToTarget();

	final Button okButton = new Button(dialog, SWT.PUSH);
	okButton.setText(JFaceResources.getString(IDialogLabelKeys.OK_LABEL_KEY));
	GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).grab(false, false).applyTo(okButton);
	okButton.addSelectionListener(new SelectionAdapter() {
	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent)
	*/
	@Override
	public void widgetSelected(SelectionEvent e) {
	binding.updateTargetToModel();
	binding.dispose();
	dialog.close();
	}
	});

	dialog.pack();
	dialog.layout();
	final Point dialogSize = dialog.getSize();
	final Rectangle displayBounds = dialog.getDisplay().getBounds();
	final Point buttonLocation = button.toDisplay(button.getSize().x, button.getSize().y);

	// TODO what if dialogsize > displaybounds? + some other cases

	int dialogX = buttonLocation.x - dialogSize.x;
	int dialogY = buttonLocation.y;
	if (dialogY + dialogSize.y > displayBounds.height) {
	dialogY = dialogY - button.getSize().y - dialogSize.y;
	}
	if (dialogX + dialogSize.x > displayBounds.width) {
	dialogX = dialogX - dialogSize.x;
	} else if (dialogX - dialogSize.x < displayBounds.x) {
	dialogX = buttonLocation.x - button.getSize().x;
	}
	dialog.setLocation(dialogX, dialogY);

	dialog.open();
	}
	}

	/**
	* Model to target strategy.
	*/
	private class DateModelToTargetUpdateStrategy extends ModelToTargetUpdateStrategy {

	private final boolean toDate;

	DateModelToTargetUpdateStrategy(boolean tooltip, boolean toDate) {
	super(tooltip);
	this.toDate = toDate;
	}

	DateModelToTargetUpdateStrategy(boolean tooltip) {
	this(tooltip, false);
	}

	@Override
	public Object convertValue(Object value) {
	final DateFormat format = setupFormat();
	final XMLGregorianCalendar gregorianCalendar = (XMLGregorianCalendar) value;
	if (gregorianCalendar == null) {
	return null;
	}
	final Date date = gregorianCalendar.toGregorianCalendar().getTime();
	if (toDate) {
	return date;
	}
	return format.format(date);
	}

	@Override
	protected IStatus doSet(IObservableValue observableValue, Object value) {
	if (value == null && toDate) {
	return Status.OK_STATUS;
	}
	if (value == null && !toDate) {
	value = ""; //$NON-NLS-1$
	}
	return super.doSet(observableValue, value);
	}

	}

	/**
	* Target to model strategy.
	*/
	private class DateTargetToModelUpdateStrategy extends TargetToModelUpdateStrategy {

	private final EStructuralFeature eStructuralFeature;
	private final Text text;

	DateTargetToModelUpdateStrategy(EStructuralFeature eStructuralFeature, Text text) {
	super(eStructuralFeature.isUnsettable());
	this.eStructuralFeature = eStructuralFeature;
	this.text = text;

	}

	@Override
	protected Object convertValue(final Object value) {
	try {
	Date date = null;
	if (String.class.isInstance(value)) {
	date = setupFormat().parse((String) value);
	} else if (Date.class.isInstance(value)) {
	date = (Date) value;
	} else if (value == null) {
	return value;
	}
	final String xmlFormat = CHECK_FORMAT.format(date);
	if (!CHECK_PATTERN.matcher(xmlFormat).matches()) {
	return revertToOldValue(value);
	}
	final String formatedDate = setupFormat().format(date);
	text.setText(formatedDate);

	final Calendar targetCal = Calendar.getInstance();
	targetCal.setTime(date);
	return DateUtil.convertOnlyDateToXMLGregorianCalendar(targetCal);
	} catch (final ParseException ex) {
	return revertToOldValue(value);
	}
	}

	private Object revertToOldValue(final Object value) {

	if (eStructuralFeature.getDefaultValue() == null && (value == null \|\| value.equals(""))) { //$NON-NLS-1$
	return null;
	}

	Object result;
	try {
	result = getModelValue().getValue();
	} catch (final DatabindingFailedException ex) {
	getReportService().report(new AbstractReport(ex));
	return null;
	}

	final MessageDialog messageDialog = new MessageDialog(text.getShell(),
	LocalizationServiceHelper.getString(getClass(), MessageKeys.XmlDateControlText_InvalidNumber), null,
	LocalizationServiceHelper.getString(getClass(),
	MessageKeys.XmlDateControlText_NumberInvalidValueWillBeUnset),
	MessageDialog.ERROR,
	new String[] { JFaceResources.getString(IDialogLabelKeys.OK_LABEL_KEY) }, 0);

	new ECPDialogExecutor(messageDialog) {
	@Override
	public void handleResult(int codeResult) {

	}
	}.execute();

	getDataBindingContext().updateTargets();

	if (eStructuralFeature.isUnsettable() && result == null) {
	return SetCommand.UNSET_VALUE;
	}
	return result;
	}
	}

	private Shell dialog;
	private EMFFormsLocaleChangeListener emfFormsLocaleChangeListener;
	private Text text;

	@Override
	protected Control createSWTControl(Composite parent) {
	final Composite main = new Composite(parent, SWT.NONE);
	main.setBackground(parent.getBackground());
	GridLayoutFactory.fillDefaults().numColumns(2).applyTo(main);
	GridDataFactory.fillDefaults().grab(true, false).align(SWT.FILL, SWT.BEGINNING).applyTo(main);
	final Control control = super.createSWTControl(main);
	GridDataFactory.fillDefaults().grab(true, false).align(SWT.FILL, SWT.CENTER).applyTo(control);
	final Button bDate = new Button(main, SWT.PUSH);
	GridDataFactory.fillDefaults().grab(false, false).align(SWT.CENTER, SWT.CENTER).applyTo(bDate);
	bDate.setImage(imageRegistryService.getImage(FrameworkUtil.getBundle(getClass()), "icons/date.png")); //$NON-NLS-1$
	bDate.setData(CUSTOM_VARIANT, "org_eclipse_emf_ecp_control_xmldate"); //$NON-NLS-1$
	text = (Text) Composite.class.cast(control).getChildren()[0];
	bDate.addSelectionListener(new SelectionAdapterExtension(text, bDate));
	return main;
	}

	@Override
	protected String getTextMessage() {
	return ((SimpleDateFormat) setupFormat()).toPattern();
	}

	@Override
	protected String getTextVariantID() {
	return "org_eclipse_emf_ecp_control_xmldate"; //$NON-NLS-1$
	}

	@Override
	protected Binding[] createBindings(Control control) throws DatabindingFailedException {
	final EStructuralFeature structuralFeature = (EStructuralFeature) getModelValue().getValueType();
	final Text text = (Text) Composite.class.cast(Composite.class.cast(control).getChildren()[0]).getChildren()[0];

	final IObservableValue value = WidgetProperties.text(SWT.FocusOut).observe(text);

	final DateTargetToModelUpdateStrategy targetToModelUpdateStrategy = new DateTargetToModelUpdateStrategy(
	structuralFeature, text);

	final DateModelToTargetUpdateStrategy modelToTargetUpdateStrategy = new DateModelToTargetUpdateStrategy(false);

	final Binding binding = getDataBindingContext().bindValue(value, getModelValue(),
	targetToModelUpdateStrategy, modelToTargetUpdateStrategy);

	final Binding tooltipBinding = createTooltipBinding(control, getModelValue(), getDataBindingContext(),
	targetToModelUpdateStrategy, new DateModelToTargetUpdateStrategy(true));

	emfFormsLocaleChangeListener = new EMFFormsLocaleChangeListener() {

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.emfforms.spi.common.locale.EMFFormsLocaleChangeListener#notifyLocaleChange()
	*/
	@Override
	public void notifyLocaleChange() {
	text.setMessage(getTextMessage());
	binding.updateModelToTarget();
	}
	};
	localeProvider.addEMFFormsLocaleChangeListener(emfFormsLocaleChangeListener);

	return new Binding[] { binding, tooltipBinding };
	}

	/**
	* Setups the {@link DateFormat}.
	*
	* @return the {@link DateFormat}
	*/
	protected DateFormat setupFormat() {
	final DateFormat df = DateFormat.getDateInstance(DateFormat.MEDIUM, localeProvider.getLocale());
	df.setLenient(false);
	return df;
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.emf.ecp.view.spi.core.swt.SimpleControlSWTControlSWTRenderer#setValidationColor(org.eclipse.swt.widgets.Control,
	* org.eclipse.swt.graphics.Color)
	*/
	@Override
	protected void setValidationColor(Control control, Color validationColor) {
	super.setValidationColor(Composite.class.cast(control).getChildren()[0], validationColor);
	}

	@Override
	protected void setValidationForegroundColor(Control control, Color validationColor) {
	super.setValidationForegroundColor(Composite.class.cast(control).getChildren()[0], validationColor);
	}

	@Override
	protected void setControlEnabled(SWTGridCell gridCell, Control control, boolean enabled) {
	if (getVElement().getLabelAlignment() == LabelAlignment.NONE && gridCell.getColumn() == 1
	\|\| hasLeftLabelAlignment() && gridCell.getColumn() == 2) {
	super.setControlEnabled(gridCell, Composite.class.cast(control).getChildren()[0], enabled);
	((Button) ((Composite) control).getChildren()[1]).setVisible(enabled);
	} else {
	super.setControlEnabled(gridCell, control, enabled);
	}
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.emf.ecp.view.spi.core.swt.renderer.TextControlSWTRenderer#getUnsetText()
	*/
	@Override
	protected String getUnsetText() {
	return localizationService
	.getString(getClass(), MessageKeys.XmlDateControlText_NoDateSetClickToSetDate);
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.emf.ecp.view.spi.core.swt.SimpleControlSWTRenderer#dispose()
	*/
	@Override
	protected void dispose() {
	if (dialog != null && !dialog.isDisposed()) {
	dialog.dispose();
	}
	localeProvider.removeEMFFormsLocaleChangeListener(emfFormsLocaleChangeListener);
	super.dispose();
	}

	}