org.eclipse.osbp.runtime.web.ecview.presentation.vaadin/src/org/eclipse/osbp/runtime/web/ecview/presentation/vaadin/internal/VerticalLayoutPresentation.java - osbp/org.eclipse.osbp.runtime.web - Git at Google

 /**
  * Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
  * 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:
  *         Florian Pirchner - Initial implementation
  */
 package org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.internal;

 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;

 import org.eclipse.emf.common.util.EList;
 import org.eclipse.osbp.ecview.core.common.editpart.IElementEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.IEmbeddableEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.ILayoutEditpart;
 import org.eclipse.osbp.ecview.core.common.model.core.YAlignment;
 import org.eclipse.osbp.ecview.core.common.model.core.YEmbeddable;
 import org.eclipse.osbp.ecview.core.extension.model.extension.YVerticalLayout;
 import org.eclipse.osbp.ecview.core.extension.model.extension.YVerticalLayoutCellStyle;
 import org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.IConstants;
 import org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.AbstractLayoutPresenter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

 import com.vaadin.ui.Alignment;
 import com.vaadin.ui.Component;
 import com.vaadin.ui.ComponentContainer;

 import fi.jasoft.dragdroplayouts.DDVerticalLayout;

 // TODO: Auto-generated Javadoc
 /**
  * This presenter is responsible to render a text field on the given layout.
  */
 public class VerticalLayoutPresentation extends
 		AbstractLayoutPresenter<ComponentContainer> {

 	/** The Constant LOGGER. */
 	private static final Logger LOGGER = LoggerFactory
 			.getLogger(VerticalLayoutPresentation.class);

 	/** The vertical layout. */
 	private DDVerticalLayout verticalLayout;

 	/** The model access. */
 	private ModelAccess modelAccess;

 	/**
 	 * The constructor.
 	 *
 	 * @param editpart
 	 *            The editpart of that presentation.
 	 */
 	public VerticalLayoutPresentation(IElementEditpart editpart) {
 		super((ILayoutEditpart) editpart);
 		this.modelAccess = new ModelAccess(
 				(YVerticalLayout) editpart.getModel());
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
 	 * AbstractVaadinWidgetPresenter#doUpdateLocale(java.util.Locale)
 	 */
 	@Override
 	protected void doUpdateLocale(Locale locale) {
 		// no need to set the locale to the ui elements. Is handled by vaadin
 		// internally.

 		// update the captions
 		applyCaptions();
 	}

 	/**
 	 * Applies the labels to the widgets.
 	 */
 	protected void applyCaptions() {
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
 	 * AbstractLayoutPresenter
 	 * #updateCellStyle(org.eclipse.osbp.ecview.core.common
 	 * .model.core.YEmbeddable)
 	 */
 	public void updateCellStyle(YEmbeddable child) {
 		// refresh the whole ui
 		refreshUI();
 	}

 	/**
 	 * Is called to refresh the UI. The element will be removed from the grid
 	 * layout and added to it again afterwards.
 	 */
 	protected void refreshUI() {
 		verticalLayout.removeAllComponents();

 		// create a map containing the style for the embeddable
 		//
 		Map<YEmbeddable, YVerticalLayoutCellStyle> yStyles = new HashMap<YEmbeddable, YVerticalLayoutCellStyle>();
 		for (YVerticalLayoutCellStyle style : modelAccess.getCellStyles()) {
 			if (yStyles.containsKey(style.getTarget())) {
 				LOGGER.warn("Multiple style for element {}", style.getTarget());
 			}
 			yStyles.put(style.getTarget(), style);
 		}

 		// iterate all elements and build the child element
 		//
 		List<Cell> cells = new ArrayList<Cell>();
 		for (IEmbeddableEditpart childPresentation : getChildren()) {
 			YEmbeddable yChild = (YEmbeddable) childPresentation.getModel();
 			cells.add(addChildComponent(childPresentation, yStyles.get(yChild)));
 		}

 		for (Cell cell : cells) {
 			if (cell.isExpandVertical()) {
 				// expandVerticalFound = true;
 				verticalLayout.setExpandRatio(cell.getComponent(), 1.0f);
 			}
 		}

 	}

 	/**
 	 * Is called to create the child component and apply layouting defaults to
 	 * it.
 	 *
 	 * @param editpart
 	 *            the editpart
 	 * @param yStyle
 	 *            the y style
 	 * @return the cell
 	 */
 	protected Cell addChildComponent(IEmbeddableEditpart editpart,
 			YVerticalLayoutCellStyle yStyle) {

 		Component child = (Component) editpart.render(verticalLayout);

 		// calculate and apply the alignment to be used
 		//
 		YAlignment yAlignment = yStyle != null && yStyle.getAlignment() != null ? yStyle
 				.getAlignment() : YAlignment.TOP_LEFT;

 		verticalLayout.addComponent(child);
 		applyAlignment(child, yAlignment);

 		return new Cell(child, yAlignment);
 	}

 	/**
 	 * Sets the alignment to the component.
 	 *
 	 * @param child
 	 *            the child
 	 * @param yAlignment
 	 *            the y alignment
 	 */
 	protected void applyAlignment(Component child, YAlignment yAlignment) {

 		if (yAlignment != null) {
 			child.setSizeUndefined();
 			switch (yAlignment) {
 			case BOTTOM_CENTER:
 				verticalLayout.setComponentAlignment(child,
 						Alignment.BOTTOM_CENTER);
 				break;
 			case BOTTOM_FILL:
 				verticalLayout.setComponentAlignment(child,
 						Alignment.BOTTOM_LEFT);
 				child.setWidth("100%");
 				break;
 			case BOTTOM_LEFT:
 				verticalLayout.setComponentAlignment(child,
 						Alignment.BOTTOM_LEFT);
 				break;
 			case BOTTOM_RIGHT:
 				verticalLayout.setComponentAlignment(child,
 						Alignment.BOTTOM_RIGHT);
 				break;
 			case MIDDLE_CENTER:
 				verticalLayout.setComponentAlignment(child,
 						Alignment.MIDDLE_CENTER);
 				break;
 			case MIDDLE_FILL:
 				verticalLayout.setComponentAlignment(child,
 						Alignment.MIDDLE_LEFT);
 				child.setWidth("100%");
 				break;
 			case MIDDLE_LEFT:
 				verticalLayout.setComponentAlignment(child,
 						Alignment.MIDDLE_LEFT);
 				break;
 			case MIDDLE_RIGHT:
 				verticalLayout.setComponentAlignment(child,
 						Alignment.MIDDLE_RIGHT);
 				break;
 			case TOP_CENTER:
 				verticalLayout.setComponentAlignment(child,
 						Alignment.TOP_CENTER);
 				break;
 			case TOP_FILL:
 				verticalLayout.setComponentAlignment(child, Alignment.TOP_LEFT);
 				child.setWidth("100%");
 				break;
 			case TOP_LEFT:
 				verticalLayout.setComponentAlignment(child, Alignment.TOP_LEFT);
 				break;
 			case TOP_RIGHT:
 				verticalLayout
 						.setComponentAlignment(child, Alignment.TOP_RIGHT);
 				break;
 			case FILL_CENTER:
 				verticalLayout.setComponentAlignment(child,
 						Alignment.TOP_CENTER);
 				child.setHeight("100%");
 				break;
 			case FILL_FILL:
 				verticalLayout.setComponentAlignment(child, Alignment.TOP_LEFT);
 				child.setWidth("100%");
 				child.setHeight("100%");
 				break;
 			case FILL_LEFT:
 				verticalLayout.setComponentAlignment(child, Alignment.TOP_LEFT);
 				child.setHeight("100%");
 				break;
 			case FILL_RIGHT:
 				verticalLayout
 						.setComponentAlignment(child, Alignment.TOP_RIGHT);
 				child.setHeight("100%");
 				break;
 			default:
 				break;
 			}
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
 	 * AbstractVaadinWidgetPresenter#doCreateWidget(java.lang.Object)
 	 */
 	@Override
 	public ComponentContainer doCreateWidget(Object parent) {
 		if (verticalLayout == null) {
 			verticalLayout = new DDVerticalLayout();
 			setupComponent(verticalLayout, getCastedModel());

 			associateWidget(verticalLayout, modelAccess.yLayout);

 			if (modelAccess.isCssIdValid()) {
 				verticalLayout.setId(modelAccess.getCssID());
 			} else {
 				verticalLayout.setId(getEditpart().getId());
 			}

 			if (modelAccess.isMargin()) {
 				verticalLayout.addStyleName(IConstants.CSS_CLASS_MARGIN);
 				verticalLayout.setMargin(true);
 			}

 			if (!modelAccess.isSpacing()) {
 				verticalLayout.setSpacing(false);
 			} else {
 				verticalLayout.addStyleName(IConstants.CSS_CLASS_SPACING);
 				verticalLayout.setSpacing(true);
 			}

 			if (modelAccess.isCssClassValid()) {
 				verticalLayout.addStyleName(modelAccess.getCssClass());
 			} else {
 				verticalLayout.addStyleName(CSS_CLASS_CONTROL);
 			}
 			verticalLayout.addStyleName(IConstants.CSS_CLASS_VERTICALLAYOUT);

 			// creates the binding for the field
 			createBindings(modelAccess.yLayout, verticalLayout, null);

 			// initialize all children
 			initializeChildren();

 			// and now render children
 			renderChildren(false);
 		}

 		return verticalLayout;
 	}

 	/**
 	 * Adds the children to the superclass and prevents rendering.
 	 */
 	private void initializeChildren() {
 		setRenderLock(true);
 		try {
 			for (IEmbeddableEditpart editPart : getEditpart().getElements()) {
 				super.add(editPart);
 			}
 		} finally {
 			setRenderLock(false);
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.presentation.IWidgetPresentation#
 	 * getWidget()
 	 */
 	@Override
 	public ComponentContainer getWidget() {
 		return verticalLayout;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.presentation.IWidgetPresentation#
 	 * isRendered()
 	 */
 	@Override
 	public boolean isRendered() {
 		return verticalLayout != null;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
 	 * AbstractLayoutPresenter#internalDispose()
 	 */
 	@Override
 	protected void internalDispose() {
 		try {
 			for (IEmbeddableEditpart child : new ArrayList<IEmbeddableEditpart>(
 					getChildren())) {
 				child.dispose();
 			}
 			unrender();
 		} finally {
 			super.internalDispose();
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
 	 * AbstractVaadinWidgetPresenter#doUnrender()
 	 */
 	@Override
 	public void doUnrender() {
 		if (verticalLayout != null) {

 			// unbind all active bindings
 			unbind();

 			// remove assocations
 			unassociateWidget(verticalLayout);

 			// unrender the children
 			unrenderChildren();

 			verticalLayout.removeAllComponents();
 			verticalLayout = null;
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
 	 * AbstractLayoutPresenter
 	 * #internalAdd(org.eclipse.osbp.ecview.core.common.editpart
 	 * .IEmbeddableEditpart)
 	 */
 	@Override
 	protected void internalAdd(IEmbeddableEditpart editpart) {
 		YEmbeddable yChild = (YEmbeddable) editpart.getModel();
 		addChildComponent(editpart, modelAccess.getCellStyle(yChild));
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
 	 * AbstractLayoutPresenter
 	 * #internalRemove(org.eclipse.osbp.ecview.core.common
 	 * .editpart.IEmbeddableEditpart)
 	 */
 	@Override
 	protected void internalRemove(IEmbeddableEditpart child) {
 		if (verticalLayout != null && child.isRendered()) {
 			verticalLayout.removeComponent((Component) child.getWidget());
 		}

 		child.unrender();
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
 	 * AbstractLayoutPresenter
 	 * #internalInsert(org.eclipse.osbp.ecview.core.common
 	 * .editpart.IEmbeddableEditpart, int)
 	 */
 	@Override
 	protected void internalInsert(IEmbeddableEditpart editpart, int index) {
 		refreshUI();
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
 	 * AbstractLayoutPresenter
 	 * #internalMove(org.eclipse.osbp.ecview.core.common.editpart
 	 * .IEmbeddableEditpart, int, int)
 	 */
 	@Override
 	protected void internalMove(IEmbeddableEditpart editpart, int oldIndex,
 			int newIndex) {
 		refreshUI();
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.presentation.ILayoutPresentation#
 	 * renderChildren(boolean)
 	 */
 	@Override
 	public void renderChildren(boolean force) {
 		if (force) {
 			unrenderChildren();
 		}

 		refreshUI();
 	}

 	/**
 	 * Will unrender all children.
 	 */
 	protected void unrenderChildren() {
 		for (IEmbeddableEditpart editpart : getChildren()) {
 			if (editpart.isRendered()) {
 				editpart.unrender();
 			}
 		}
 	}

 	/**
 	 * An internal helper class.
 	 */
 	private static class ModelAccess {

 		/** The y layout. */
 		private final YVerticalLayout yLayout;

 		/**
 		 * Instantiates a new model access.
 		 *
 		 * @param yLayout
 		 *            the y layout
 		 */
 		public ModelAccess(YVerticalLayout yLayout) {
 			super();
 			this.yLayout = yLayout;
 		}

 		/**
 		 * Gets the css class.
 		 *
 		 * @return the css class
 		 * @see org.eclipse.osbp.ecview.core.ui.core.model.core.YCssAble#getCssClass()
 		 */
 		public String getCssClass() {
 			return yLayout.getCssClass();
 		}

 		/**
 		 * Returns true, if the css class is not null and not empty.
 		 *
 		 * @return true, if is css class valid
 		 */
 		public boolean isCssClassValid() {
 			return getCssClass() != null && !getCssClass().equals("");
 		}

 		/**
 		 * Checks if is spacing.
 		 *
 		 * @return true, if is spacing
 		 * @see org.eclipse.osbp.ecview.core.ui.core.model.extension.YVerticalLayout#isSpacing()
 		 */
 		public boolean isSpacing() {
 			return yLayout.isSpacing();
 		}

 		/**
 		 * Gets the css id.
 		 *
 		 * @return the css id
 		 * @see org.eclipse.osbp.ecview.core.ui.core.model.core.YCssAble#getCssID()
 		 */
 		public String getCssID() {
 			return yLayout.getCssID();
 		}

 		/**
 		 * Returns true, if the css id is not null and not empty.
 		 *
 		 * @return true, if is css id valid
 		 */
 		public boolean isCssIdValid() {
 			return getCssID() != null && !getCssID().equals("");
 		}

 		/**
 		 * Checks if is margin.
 		 *
 		 * @return true, if is margin
 		 * @see org.eclipse.osbp.ecview.core.ui.core.model.extension.YVerticalLayout#isMargin()
 		 */
 		public boolean isMargin() {
 			return yLayout.isMargin();
 		}

 		/**
 		 * Gets the cell styles.
 		 *
 		 * @return the cell styles
 		 * @see org.eclipse.osbp.ecview.core.ui.core.model.extension.YVerticalLayout#getCellStyles()
 		 */
 		public EList<YVerticalLayoutCellStyle> getCellStyles() {
 			return yLayout.getCellStyles();
 		}

 		/**
 		 * Gets the cell style.
 		 *
 		 * @param element
 		 *            the element
 		 * @return the cell style
 		 */
 		public YVerticalLayoutCellStyle getCellStyle(YEmbeddable element) {
 			return yLayout.getCellStyle(element);
 		}

 	}

 	/**
 	 * The Class Cell.
 	 */
 	public static class Cell {

 		/** The component. */
 		private final Component component;

 		/** The alignment. */
 		private final YAlignment alignment;

 		/**
 		 * Instantiates a new cell.
 		 *
 		 * @param component
 		 *            the component
 		 * @param alignment
 		 *            the alignment
 		 */
 		public Cell(Component component, YAlignment alignment) {
 			super();
 			this.component = component;
 			this.alignment = alignment;
 		}

 		/**
 		 * Gets the component.
 		 *
 		 * @return the component
 		 */
 		protected Component getComponent() {
 			return component;
 		}

 		/**
 		 * Gets the alignment.
 		 *
 		 * @return the alignment
 		 */
 		protected YAlignment getAlignment() {
 			return alignment;
 		}

 		/**
 		 * Checks if is expand vertical.
 		 *
 		 * @return true, if is expand vertical
 		 */
 		protected boolean isExpandVertical() {
 			switch (alignment) {
 			case FILL_CENTER:
 			case FILL_FILL:
 			case FILL_LEFT:
 			case FILL_RIGHT:
 				return true;
 			default:
 				return false;
 			}
 		}

 		/**
 		 * Checks if is expand horizontal.
 		 *
 		 * @return true, if is expand horizontal
 		 */
 		protected boolean isExpandHorizontal() {
 			switch (alignment) {
 			case BOTTOM_FILL:
 			case FILL_FILL:
 			case MIDDLE_FILL:
 			case TOP_FILL:
 				return true;
 			default:
 				return false;
 			}
 		}
 	}
 }
	/**
	* Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
	* 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:
	* Florian Pirchner - Initial implementation
	*/
	package org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.internal;

	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Locale;
	import java.util.Map;

	import org.eclipse.emf.common.util.EList;
	import org.eclipse.osbp.ecview.core.common.editpart.IElementEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.IEmbeddableEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.ILayoutEditpart;
	import org.eclipse.osbp.ecview.core.common.model.core.YAlignment;
	import org.eclipse.osbp.ecview.core.common.model.core.YEmbeddable;
	import org.eclipse.osbp.ecview.core.extension.model.extension.YVerticalLayout;
	import org.eclipse.osbp.ecview.core.extension.model.extension.YVerticalLayoutCellStyle;
	import org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.IConstants;
	import org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.AbstractLayoutPresenter;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	import com.vaadin.ui.Alignment;
	import com.vaadin.ui.Component;
	import com.vaadin.ui.ComponentContainer;

	import fi.jasoft.dragdroplayouts.DDVerticalLayout;

	// TODO: Auto-generated Javadoc
	/**
	* This presenter is responsible to render a text field on the given layout.
	*/
	public class VerticalLayoutPresentation extends
	AbstractLayoutPresenter<ComponentContainer> {

	/** The Constant LOGGER. */
	private static final Logger LOGGER = LoggerFactory
	.getLogger(VerticalLayoutPresentation.class);

	/** The vertical layout. */
	private DDVerticalLayout verticalLayout;

	/** The model access. */
	private ModelAccess modelAccess;

	/**
	* The constructor.
	*
	* @param editpart
	* The editpart of that presentation.
	*/
	public VerticalLayoutPresentation(IElementEditpart editpart) {
	super((ILayoutEditpart) editpart);
	this.modelAccess = new ModelAccess(
	(YVerticalLayout) editpart.getModel());
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
	* AbstractVaadinWidgetPresenter#doUpdateLocale(java.util.Locale)
	*/
	@Override
	protected void doUpdateLocale(Locale locale) {
	// no need to set the locale to the ui elements. Is handled by vaadin
	// internally.

	// update the captions
	applyCaptions();
	}

	/**
	* Applies the labels to the widgets.
	*/
	protected void applyCaptions() {
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
	* AbstractLayoutPresenter
	* #updateCellStyle(org.eclipse.osbp.ecview.core.common
	* .model.core.YEmbeddable)
	*/
	public void updateCellStyle(YEmbeddable child) {
	// refresh the whole ui
	refreshUI();
	}

	/**
	* Is called to refresh the UI. The element will be removed from the grid
	* layout and added to it again afterwards.
	*/
	protected void refreshUI() {
	verticalLayout.removeAllComponents();

	// create a map containing the style for the embeddable
	//
	Map<YEmbeddable, YVerticalLayoutCellStyle> yStyles = new HashMap<YEmbeddable, YVerticalLayoutCellStyle>();
	for (YVerticalLayoutCellStyle style : modelAccess.getCellStyles()) {
	if (yStyles.containsKey(style.getTarget())) {
	LOGGER.warn("Multiple style for element {}", style.getTarget());
	}
	yStyles.put(style.getTarget(), style);
	}

	// iterate all elements and build the child element
	//
	List<Cell> cells = new ArrayList<Cell>();
	for (IEmbeddableEditpart childPresentation : getChildren()) {
	YEmbeddable yChild = (YEmbeddable) childPresentation.getModel();
	cells.add(addChildComponent(childPresentation, yStyles.get(yChild)));
	}

	for (Cell cell : cells) {
	if (cell.isExpandVertical()) {
	// expandVerticalFound = true;
	verticalLayout.setExpandRatio(cell.getComponent(), 1.0f);
	}
	}

	}

	/**
	* Is called to create the child component and apply layouting defaults to
	* it.
	*
	* @param editpart
	* the editpart
	* @param yStyle
	* the y style
	* @return the cell
	*/
	protected Cell addChildComponent(IEmbeddableEditpart editpart,
	YVerticalLayoutCellStyle yStyle) {

	Component child = (Component) editpart.render(verticalLayout);

	// calculate and apply the alignment to be used
	//
	YAlignment yAlignment = yStyle != null && yStyle.getAlignment() != null ? yStyle
	.getAlignment() : YAlignment.TOP_LEFT;

	verticalLayout.addComponent(child);
	applyAlignment(child, yAlignment);

	return new Cell(child, yAlignment);
	}

	/**
	* Sets the alignment to the component.
	*
	* @param child
	* the child
	* @param yAlignment
	* the y alignment
	*/
	protected void applyAlignment(Component child, YAlignment yAlignment) {

	if (yAlignment != null) {
	child.setSizeUndefined();
	switch (yAlignment) {
	case BOTTOM_CENTER:
	verticalLayout.setComponentAlignment(child,
	Alignment.BOTTOM_CENTER);
	break;
	case BOTTOM_FILL:
	verticalLayout.setComponentAlignment(child,
	Alignment.BOTTOM_LEFT);
	child.setWidth("100%");
	break;
	case BOTTOM_LEFT:
	verticalLayout.setComponentAlignment(child,
	Alignment.BOTTOM_LEFT);
	break;
	case BOTTOM_RIGHT:
	verticalLayout.setComponentAlignment(child,
	Alignment.BOTTOM_RIGHT);
	break;
	case MIDDLE_CENTER:
	verticalLayout.setComponentAlignment(child,
	Alignment.MIDDLE_CENTER);
	break;
	case MIDDLE_FILL:
	verticalLayout.setComponentAlignment(child,
	Alignment.MIDDLE_LEFT);
	child.setWidth("100%");
	break;
	case MIDDLE_LEFT:
	verticalLayout.setComponentAlignment(child,
	Alignment.MIDDLE_LEFT);
	break;
	case MIDDLE_RIGHT:
	verticalLayout.setComponentAlignment(child,
	Alignment.MIDDLE_RIGHT);
	break;
	case TOP_CENTER:
	verticalLayout.setComponentAlignment(child,
	Alignment.TOP_CENTER);
	break;
	case TOP_FILL:
	verticalLayout.setComponentAlignment(child, Alignment.TOP_LEFT);
	child.setWidth("100%");
	break;
	case TOP_LEFT:
	verticalLayout.setComponentAlignment(child, Alignment.TOP_LEFT);
	break;
	case TOP_RIGHT:
	verticalLayout
	.setComponentAlignment(child, Alignment.TOP_RIGHT);
	break;
	case FILL_CENTER:
	verticalLayout.setComponentAlignment(child,
	Alignment.TOP_CENTER);
	child.setHeight("100%");
	break;
	case FILL_FILL:
	verticalLayout.setComponentAlignment(child, Alignment.TOP_LEFT);
	child.setWidth("100%");
	child.setHeight("100%");
	break;
	case FILL_LEFT:
	verticalLayout.setComponentAlignment(child, Alignment.TOP_LEFT);
	child.setHeight("100%");
	break;
	case FILL_RIGHT:
	verticalLayout
	.setComponentAlignment(child, Alignment.TOP_RIGHT);
	child.setHeight("100%");
	break;
	default:
	break;
	}
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
	* AbstractVaadinWidgetPresenter#doCreateWidget(java.lang.Object)
	*/
	@Override
	public ComponentContainer doCreateWidget(Object parent) {
	if (verticalLayout == null) {
	verticalLayout = new DDVerticalLayout();
	setupComponent(verticalLayout, getCastedModel());

	associateWidget(verticalLayout, modelAccess.yLayout);

	if (modelAccess.isCssIdValid()) {
	verticalLayout.setId(modelAccess.getCssID());
	} else {
	verticalLayout.setId(getEditpart().getId());
	}

	if (modelAccess.isMargin()) {
	verticalLayout.addStyleName(IConstants.CSS_CLASS_MARGIN);
	verticalLayout.setMargin(true);
	}

	if (!modelAccess.isSpacing()) {
	verticalLayout.setSpacing(false);
	} else {
	verticalLayout.addStyleName(IConstants.CSS_CLASS_SPACING);
	verticalLayout.setSpacing(true);
	}

	if (modelAccess.isCssClassValid()) {
	verticalLayout.addStyleName(modelAccess.getCssClass());
	} else {
	verticalLayout.addStyleName(CSS_CLASS_CONTROL);
	}
	verticalLayout.addStyleName(IConstants.CSS_CLASS_VERTICALLAYOUT);

	// creates the binding for the field
	createBindings(modelAccess.yLayout, verticalLayout, null);

	// initialize all children
	initializeChildren();

	// and now render children
	renderChildren(false);
	}

	return verticalLayout;
	}

	/**
	* Adds the children to the superclass and prevents rendering.
	*/
	private void initializeChildren() {
	setRenderLock(true);
	try {
	for (IEmbeddableEditpart editPart : getEditpart().getElements()) {
	super.add(editPart);
	}
	} finally {
	setRenderLock(false);
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.presentation.IWidgetPresentation#
	* getWidget()
	*/
	@Override
	public ComponentContainer getWidget() {
	return verticalLayout;
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.presentation.IWidgetPresentation#
	* isRendered()
	*/
	@Override
	public boolean isRendered() {
	return verticalLayout != null;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
	* AbstractLayoutPresenter#internalDispose()
	*/
	@Override
	protected void internalDispose() {
	try {
	for (IEmbeddableEditpart child : new ArrayList<IEmbeddableEditpart>(
	getChildren())) {
	child.dispose();
	}
	unrender();
	} finally {
	super.internalDispose();
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
	* AbstractVaadinWidgetPresenter#doUnrender()
	*/
	@Override
	public void doUnrender() {
	if (verticalLayout != null) {

	// unbind all active bindings
	unbind();

	// remove assocations
	unassociateWidget(verticalLayout);

	// unrender the children
	unrenderChildren();

	verticalLayout.removeAllComponents();
	verticalLayout = null;
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
	* AbstractLayoutPresenter
	* #internalAdd(org.eclipse.osbp.ecview.core.common.editpart
	* .IEmbeddableEditpart)
	*/
	@Override
	protected void internalAdd(IEmbeddableEditpart editpart) {
	YEmbeddable yChild = (YEmbeddable) editpart.getModel();
	addChildComponent(editpart, modelAccess.getCellStyle(yChild));
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
	* AbstractLayoutPresenter
	* #internalRemove(org.eclipse.osbp.ecview.core.common
	* .editpart.IEmbeddableEditpart)
	*/
	@Override
	protected void internalRemove(IEmbeddableEditpart child) {
	if (verticalLayout != null && child.isRendered()) {
	verticalLayout.removeComponent((Component) child.getWidget());
	}

	child.unrender();
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
	* AbstractLayoutPresenter
	* #internalInsert(org.eclipse.osbp.ecview.core.common
	* .editpart.IEmbeddableEditpart, int)
	*/
	@Override
	protected void internalInsert(IEmbeddableEditpart editpart, int index) {
	refreshUI();
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.
	* AbstractLayoutPresenter
	* #internalMove(org.eclipse.osbp.ecview.core.common.editpart
	* .IEmbeddableEditpart, int, int)
	*/
	@Override
	protected void internalMove(IEmbeddableEditpart editpart, int oldIndex,
	int newIndex) {
	refreshUI();
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.presentation.ILayoutPresentation#
	* renderChildren(boolean)
	*/
	@Override
	public void renderChildren(boolean force) {
	if (force) {
	unrenderChildren();
	}

	refreshUI();
	}

	/**
	* Will unrender all children.
	*/
	protected void unrenderChildren() {
	for (IEmbeddableEditpart editpart : getChildren()) {
	if (editpart.isRendered()) {
	editpart.unrender();
	}
	}
	}

	/**
	* An internal helper class.
	*/
	private static class ModelAccess {

	/** The y layout. */
	private final YVerticalLayout yLayout;

	/**
	* Instantiates a new model access.
	*
	* @param yLayout
	* the y layout
	*/
	public ModelAccess(YVerticalLayout yLayout) {
	super();
	this.yLayout = yLayout;
	}

	/**
	* Gets the css class.
	*
	* @return the css class
	* @see org.eclipse.osbp.ecview.core.ui.core.model.core.YCssAble#getCssClass()
	*/
	public String getCssClass() {
	return yLayout.getCssClass();
	}

	/**
	* Returns true, if the css class is not null and not empty.
	*
	* @return true, if is css class valid
	*/
	public boolean isCssClassValid() {
	return getCssClass() != null && !getCssClass().equals("");
	}

	/**
	* Checks if is spacing.
	*
	* @return true, if is spacing
	* @see org.eclipse.osbp.ecview.core.ui.core.model.extension.YVerticalLayout#isSpacing()
	*/
	public boolean isSpacing() {
	return yLayout.isSpacing();
	}

	/**
	* Gets the css id.
	*
	* @return the css id
	* @see org.eclipse.osbp.ecview.core.ui.core.model.core.YCssAble#getCssID()
	*/
	public String getCssID() {
	return yLayout.getCssID();
	}

	/**
	* Returns true, if the css id is not null and not empty.
	*
	* @return true, if is css id valid
	*/
	public boolean isCssIdValid() {
	return getCssID() != null && !getCssID().equals("");
	}

	/**
	* Checks if is margin.
	*
	* @return true, if is margin
	* @see org.eclipse.osbp.ecview.core.ui.core.model.extension.YVerticalLayout#isMargin()
	*/
	public boolean isMargin() {
	return yLayout.isMargin();
	}

	/**
	* Gets the cell styles.
	*
	* @return the cell styles
	* @see org.eclipse.osbp.ecview.core.ui.core.model.extension.YVerticalLayout#getCellStyles()
	*/
	public EList<YVerticalLayoutCellStyle> getCellStyles() {
	return yLayout.getCellStyles();
	}

	/**
	* Gets the cell style.
	*
	* @param element
	* the element
	* @return the cell style
	*/
	public YVerticalLayoutCellStyle getCellStyle(YEmbeddable element) {
	return yLayout.getCellStyle(element);
	}

	}

	/**
	* The Class Cell.
	*/
	public static class Cell {

	/** The component. */
	private final Component component;

	/** The alignment. */
	private final YAlignment alignment;

	/**
	* Instantiates a new cell.
	*
	* @param component
	* the component
	* @param alignment
	* the alignment
	*/
	public Cell(Component component, YAlignment alignment) {
	super();
	this.component = component;
	this.alignment = alignment;
	}

	/**
	* Gets the component.
	*
	* @return the component
	*/
	protected Component getComponent() {
	return component;
	}

	/**
	* Gets the alignment.
	*
	* @return the alignment
	*/
	protected YAlignment getAlignment() {
	return alignment;
	}

	/**
	* Checks if is expand vertical.
	*
	* @return true, if is expand vertical
	*/
	protected boolean isExpandVertical() {
	switch (alignment) {
	case FILL_CENTER:
	case FILL_FILL:
	case FILL_LEFT:
	case FILL_RIGHT:
	return true;
	default:
	return false;
	}
	}

	/**
	* Checks if is expand horizontal.
	*
	* @return true, if is expand horizontal
	*/
	protected boolean isExpandHorizontal() {
	switch (alignment) {
	case BOTTOM_FILL:
	case FILL_FILL:
	case MIDDLE_FILL:
	case TOP_FILL:
	return true;
	default:
	return false;
	}
	}
	}
	}