org.eclipse.osbp.runtime.web.ecview.presentation.vaadin/src/org/eclipse/osbp/runtime/web/ecview/presentation/vaadin/internal/CssLayoutPresentation.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.List;
 import java.util.Locale;

 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.YCssLayout;
 import org.eclipse.osbp.ecview.core.extension.model.extension.YCssLayoutCellStyle;
 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.server.Responsive;
 import com.vaadin.ui.Component;
 import com.vaadin.ui.ComponentContainer;

 import fi.jasoft.dragdroplayouts.DDCssLayout;

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

 	/** The Constant LOGGER. */
 	@SuppressWarnings("unused")
 	private static final Logger LOGGER = LoggerFactory
 			.getLogger(CssLayoutPresentation.class);

 	/** The css layout. */
 	private DDCssLayout cssLayout;

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

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

 	/* (non-Javadoc)
 	 * @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.AbstractLayoutPresenter#add(org.eclipse.osbp.ecview.core.common.editpart.IEmbeddableEditpart)
 	 */
 	@Override
 	public void add(IEmbeddableEditpart editpart) {
 		super.add(editpart);

 		refreshUI();
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.AbstractLayoutPresenter#remove(org.eclipse.osbp.ecview.core.common.editpart.IEmbeddableEditpart)
 	 */
 	@Override
 	public void remove(IEmbeddableEditpart editpart) {
 		super.remove(editpart);

 		refreshUI();
 	}

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

 		refreshUI();
 	}

 	/* (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();
 	}

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

 		refreshUI();
 	}

 	/* (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() {

 	}

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

 		// iterate all elements and build the child element
 		//
 		List<Cell> cells = new ArrayList<Cell>();
 		for (IEmbeddableEditpart child : getEditpart().getElements()) {
 			Cell cell = addChild(child);
 			cells.add(cell);
 		}

 		cssLayout.setSizeUndefined();
 	}

 	/**
 	 * Is called to create the child component and apply layouting defaults to
 	 * it.
 	 *
 	 * @param editpart
 	 *            the editpart
 	 * @return the cell
 	 */
 	protected Cell addChild(IEmbeddableEditpart editpart) {

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

 		child.setSizeUndefined();
 		cssLayout.addComponent(child);

 		return new Cell(child);
 	}

 	/**
 	 * Maps the vertical part of the alignment to FILL.
 	 *
 	 * @param yAlignment
 	 *            the alignment
 	 * @return alignment the mapped alignment
 	 */
 	// BEGIN SUPRESS CATCH EXCEPTION
 	protected YAlignment mapToVerticalFill(YAlignment yAlignment) {
 		// END SUPRESS CATCH EXCEPTION
 		if (yAlignment != null) {
 			switch (yAlignment) {
 			case BOTTOM_CENTER:
 			case MIDDLE_CENTER:
 			case TOP_CENTER:
 				return YAlignment.FILL_CENTER;
 			case BOTTOM_FILL:
 			case MIDDLE_FILL:
 			case TOP_FILL:
 				return YAlignment.FILL_FILL;
 			case BOTTOM_LEFT:
 			case MIDDLE_LEFT:
 			case TOP_LEFT:
 				return YAlignment.FILL_LEFT;
 			case BOTTOM_RIGHT:
 			case MIDDLE_RIGHT:
 			case TOP_RIGHT:
 				return YAlignment.FILL_RIGHT;
 			case FILL_FILL:
 			case FILL_LEFT:
 			case FILL_RIGHT:
 			case FILL_CENTER:
 				return YAlignment.FILL_FILL;
 			default:
 				break;
 			}
 		}
 		return YAlignment.FILL_FILL;
 	}

 	/**
 	 * Maps the horizontal part of the alignment to FILL.
 	 *
 	 * @param yAlignment
 	 *            the alignment
 	 * @return alignment the mapped alignment
 	 */
 	// BEGIN SUPRESS CATCH EXCEPTION
 	protected YAlignment mapToHorizontalFill(YAlignment yAlignment) {
 		// END SUPRESS CATCH EXCEPTION
 		if (yAlignment != null) {
 			switch (yAlignment) {
 			case BOTTOM_CENTER:
 			case BOTTOM_FILL:
 			case BOTTOM_LEFT:
 			case BOTTOM_RIGHT:
 				return YAlignment.BOTTOM_FILL;
 			case MIDDLE_CENTER:
 			case MIDDLE_FILL:
 			case MIDDLE_LEFT:
 			case MIDDLE_RIGHT:
 				return YAlignment.MIDDLE_FILL;
 			case TOP_CENTER:
 			case TOP_FILL:
 			case TOP_LEFT:
 			case TOP_RIGHT:
 				return YAlignment.TOP_FILL;
 			case FILL_FILL:
 			case FILL_LEFT:
 			case FILL_RIGHT:
 			case FILL_CENTER:
 				return YAlignment.FILL_FILL;
 			default:
 				break;
 			}
 		}
 		return YAlignment.FILL_FILL;
 	}

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

 			cssLayout = new DDCssLayout();
 			cssLayout.setImmediate(true);

 			setupComponent(cssLayout, getCastedModel());

 			associateWidget(cssLayout, modelAccess.yLayout);

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

 			if (modelAccess.isCssClassValid()) {
 				cssLayout.addStyleName(modelAccess.getCssClass());
 			} else {
 				cssLayout.addStyleName(CSS_CLASS_CONTROL);
 			}
 			cssLayout.addStyleName(IConstants.CSS_CLASS_CSSLAYOUT);

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

 			Responsive.makeResponsive(cssLayout);
 			initializeChildren();

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

 		return cssLayout;
 	}

 	/**
 	 * 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 cssLayout;
 	}

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

 	/* (non-Javadoc)
 	 * @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.AbstractLayoutPresenter#internalDispose()
 	 */
 	@Override
 	protected void internalDispose() {

 		try {
 			unrender();
 		} finally {
 			super.internalDispose();
 		}

 	}

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

 			// unbind all active bindings
 			unbind();

 			// remove assocations
 			unassociateWidget(cssLayout);

 			// unrender the children
 			unrenderChildren();

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

 	/* (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 YCssLayout yLayout;

 		/**
 		 * Instantiates a new model access.
 		 *
 		 * @param yLayout
 		 *            the y layout
 		 */
 		public ModelAccess(YCssLayout 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("");
 		}

 		/**
 		 * 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("");
 		}

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

 	}

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

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

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

 		/**
 		 * Gets the component.
 		 *
 		 * @return the component
 		 */
 		protected Component getComponent() {
 			return component;
 		}
 	}
 }
	/**
	* 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.List;
	import java.util.Locale;

	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.YCssLayout;
	import org.eclipse.osbp.ecview.core.extension.model.extension.YCssLayoutCellStyle;
	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.server.Responsive;
	import com.vaadin.ui.Component;
	import com.vaadin.ui.ComponentContainer;

	import fi.jasoft.dragdroplayouts.DDCssLayout;

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

	/** The Constant LOGGER. */
	@SuppressWarnings("unused")
	private static final Logger LOGGER = LoggerFactory
	.getLogger(CssLayoutPresentation.class);

	/** The css layout. */
	private DDCssLayout cssLayout;

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

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

	/* (non-Javadoc)
	* @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.AbstractLayoutPresenter#add(org.eclipse.osbp.ecview.core.common.editpart.IEmbeddableEditpart)
	*/
	@Override
	public void add(IEmbeddableEditpart editpart) {
	super.add(editpart);

	refreshUI();
	}

	/* (non-Javadoc)
	* @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.AbstractLayoutPresenter#remove(org.eclipse.osbp.ecview.core.common.editpart.IEmbeddableEditpart)
	*/
	@Override
	public void remove(IEmbeddableEditpart editpart) {
	super.remove(editpart);

	refreshUI();
	}

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

	refreshUI();
	}

	/* (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();
	}

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

	refreshUI();
	}

	/* (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() {

	}

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

	// iterate all elements and build the child element
	//
	List<Cell> cells = new ArrayList<Cell>();
	for (IEmbeddableEditpart child : getEditpart().getElements()) {
	Cell cell = addChild(child);
	cells.add(cell);
	}

	cssLayout.setSizeUndefined();
	}

	/**
	* Is called to create the child component and apply layouting defaults to
	* it.
	*
	* @param editpart
	* the editpart
	* @return the cell
	*/
	protected Cell addChild(IEmbeddableEditpart editpart) {

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

	child.setSizeUndefined();
	cssLayout.addComponent(child);

	return new Cell(child);
	}

	/**
	* Maps the vertical part of the alignment to FILL.
	*
	* @param yAlignment
	* the alignment
	* @return alignment the mapped alignment
	*/
	// BEGIN SUPRESS CATCH EXCEPTION
	protected YAlignment mapToVerticalFill(YAlignment yAlignment) {
	// END SUPRESS CATCH EXCEPTION
	if (yAlignment != null) {
	switch (yAlignment) {
	case BOTTOM_CENTER:
	case MIDDLE_CENTER:
	case TOP_CENTER:
	return YAlignment.FILL_CENTER;
	case BOTTOM_FILL:
	case MIDDLE_FILL:
	case TOP_FILL:
	return YAlignment.FILL_FILL;
	case BOTTOM_LEFT:
	case MIDDLE_LEFT:
	case TOP_LEFT:
	return YAlignment.FILL_LEFT;
	case BOTTOM_RIGHT:
	case MIDDLE_RIGHT:
	case TOP_RIGHT:
	return YAlignment.FILL_RIGHT;
	case FILL_FILL:
	case FILL_LEFT:
	case FILL_RIGHT:
	case FILL_CENTER:
	return YAlignment.FILL_FILL;
	default:
	break;
	}
	}
	return YAlignment.FILL_FILL;
	}

	/**
	* Maps the horizontal part of the alignment to FILL.
	*
	* @param yAlignment
	* the alignment
	* @return alignment the mapped alignment
	*/
	// BEGIN SUPRESS CATCH EXCEPTION
	protected YAlignment mapToHorizontalFill(YAlignment yAlignment) {
	// END SUPRESS CATCH EXCEPTION
	if (yAlignment != null) {
	switch (yAlignment) {
	case BOTTOM_CENTER:
	case BOTTOM_FILL:
	case BOTTOM_LEFT:
	case BOTTOM_RIGHT:
	return YAlignment.BOTTOM_FILL;
	case MIDDLE_CENTER:
	case MIDDLE_FILL:
	case MIDDLE_LEFT:
	case MIDDLE_RIGHT:
	return YAlignment.MIDDLE_FILL;
	case TOP_CENTER:
	case TOP_FILL:
	case TOP_LEFT:
	case TOP_RIGHT:
	return YAlignment.TOP_FILL;
	case FILL_FILL:
	case FILL_LEFT:
	case FILL_RIGHT:
	case FILL_CENTER:
	return YAlignment.FILL_FILL;
	default:
	break;
	}
	}
	return YAlignment.FILL_FILL;
	}

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

	cssLayout = new DDCssLayout();
	cssLayout.setImmediate(true);

	setupComponent(cssLayout, getCastedModel());

	associateWidget(cssLayout, modelAccess.yLayout);

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

	if (modelAccess.isCssClassValid()) {
	cssLayout.addStyleName(modelAccess.getCssClass());
	} else {
	cssLayout.addStyleName(CSS_CLASS_CONTROL);
	}
	cssLayout.addStyleName(IConstants.CSS_CLASS_CSSLAYOUT);

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

	Responsive.makeResponsive(cssLayout);
	initializeChildren();

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

	return cssLayout;
	}

	/**
	* 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 cssLayout;
	}

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

	/* (non-Javadoc)
	* @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.AbstractLayoutPresenter#internalDispose()
	*/
	@Override
	protected void internalDispose() {

	try {
	unrender();
	} finally {
	super.internalDispose();
	}

	}

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

	// unbind all active bindings
	unbind();

	// remove assocations
	unassociateWidget(cssLayout);

	// unrender the children
	unrenderChildren();

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

	/* (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 YCssLayout yLayout;

	/**
	* Instantiates a new model access.
	*
	* @param yLayout
	* the y layout
	*/
	public ModelAccess(YCssLayout 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("");
	}

	/**
	* 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("");
	}

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

	}

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

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

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

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