org.eclipse.osbp.runtime.web.ecview.presentation.vaadin/src/org/eclipse/osbp/runtime/web/ecview/presentation/vaadin/internal/AbsoluteLayoutPresentation.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 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *         Florian Pirchner - Initial implementation
  */
 package org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.internal;

 import java.util.ArrayList;
 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.YEmbeddable;
 import org.eclipse.osbp.ecview.core.extension.model.extension.YAbsoluteLayout;
 import org.eclipse.osbp.ecview.core.extension.model.extension.YAbsoluteLayoutCellStyle;
 import org.eclipse.osbp.runtime.designer.api.IDesignerService.DesignEvent;
 import org.eclipse.osbp.runtime.designer.api.IDesignerService.EventType;
 import org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.AbstractLayoutPresenter;
 import org.eclipse.osbp.vaadin.addons.absolutelayout.AbsoluteLayout;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

 import com.vaadin.server.Sizeable.Unit;
 import com.vaadin.ui.Component;
 import com.vaadin.ui.ComponentContainer;

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

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

 	/** The layout. */
 	private AbsoluteLayout layout;

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

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

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

 		for (IEmbeddableEditpart childPresentation : getChildren()) {
 			YEmbeddable yChild = (YEmbeddable) childPresentation.getModel();
 			addChildComponent(childPresentation,
 					modelAccess.getCellStyle(yChild));
 		}
 	}

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

 		Component child = (Component) editpart.render(layout);
 		layout.addComponent(child, toCssString(yStyle));

 	}

 	/* (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#notify(org.eclipse.osbp.runtime.designer.api.IDesignerService.DesignEvent)
 	 */
 	@Override
 	public void notify(DesignEvent event) {
 		super.notify(event);

 		if (getWidget() != null) {
 			if (event.getType() == EventType.ENABLED) {
 				layout.setResizable(true);
 				layout.setUseAlignments(true);
 			} else {
 				layout.setResizable(false);
 				layout.setUseAlignments(false);
 			}
 		}
 	}

 	/**
 	 * To css string.
 	 *
 	 * @param yStyle
 	 *            the y style
 	 * @return the string
 	 */
 	private String toCssString(YAbsoluteLayoutCellStyle yStyle) {
 		AbsoluteLayout.ComponentPosition pos = this.layout.new ComponentPosition();
 		if (yStyle != null) {
 			pos.setTop(toPositionFloat(yStyle.getTop()), Unit.PIXELS);
 			pos.setBottom(toPositionFloat(yStyle.getBottom()), Unit.PIXELS);
 			pos.setLeft(toPositionFloat(yStyle.getLeft()), Unit.PIXELS);
 			pos.setRight(toPositionFloat(yStyle.getRight()), Unit.PIXELS);
 			pos.setZIndex(yStyle.getZIndex());
 		}
 		return pos.getCSSString();
 	}

 	/**
 	 * To position float.
 	 *
 	 * @param value
 	 *            the value
 	 * @return the float
 	 */
 	private Float toPositionFloat(int value) {
 		return value == -1 ? null : Float.valueOf(value);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.AbstractVaadinWidgetPresenter#doCreateWidget(java.lang.Object)
 	 */
 	@Override
 	public ComponentContainer doCreateWidget(Object parent) {
 		if (layout == null) {
 			layout = new AbsoluteLayout();
 			setupComponent(layout, getCastedModel());
 			layout.setResizable(modelAccess.yLayout.isChildResizeEnabled());
 			layout.setUseAlignments(isUseAlignments());

 			associateWidget(layout, modelAccess.yLayout);

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

 			if (modelAccess.isCssClassValid()) {
 				layout.addStyleName(modelAccess.getCssClass());
 			} else {
 				layout.addStyleName(CSS_CLASS_CONTROL);
 			}

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

 			// initialize all children
 			initializeChildren();

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

 		return layout;
 	}

 	/**
 	 * Checks if is use alignments.
 	 *
 	 * @return true, if is use alignments
 	 */
 	private boolean isUseAlignments() {
 		return modelAccess.yLayout.isChildResizeEnabled()
 				|| modelAccess.yLayout.isChildMoveEnabled();
 	}

 	/**
 	 * 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 layout;
 	}

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

 			// unbind all active bindings
 			unbind();

 			// remove assocations
 			unassociateWidget(layout);

 			// unrender the children
 			unrenderChildren();

 			layout = 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 (layout != null && child.isRendered()) {
 			layout.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 YAbsoluteLayout yLayout;

 		/**
 		 * Instantiates a new model access.
 		 *
 		 * @param yLayout
 		 *            the y layout
 		 */
 		public ModelAccess(YAbsoluteLayout 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.YAbsoluteLayout#getCellStyles()
 		 */
 		public EList<YAbsoluteLayoutCellStyle> getCellStyles() {
 			return yLayout.getCellStyles();
 		}

 		/**
 		 * Gets the cell style.
 		 *
 		 * @param element
 		 *            the element
 		 * @return the cell style
 		 */
 		public YAbsoluteLayoutCellStyle getCellStyle(YEmbeddable element) {
 			return yLayout.getCellStyle(element);
 		}
 	}
 }
	/**
	* 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 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* Florian Pirchner - Initial implementation
	*/
	package org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.internal;

	import java.util.ArrayList;
	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.YEmbeddable;
	import org.eclipse.osbp.ecview.core.extension.model.extension.YAbsoluteLayout;
	import org.eclipse.osbp.ecview.core.extension.model.extension.YAbsoluteLayoutCellStyle;
	import org.eclipse.osbp.runtime.designer.api.IDesignerService.DesignEvent;
	import org.eclipse.osbp.runtime.designer.api.IDesignerService.EventType;
	import org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.AbstractLayoutPresenter;
	import org.eclipse.osbp.vaadin.addons.absolutelayout.AbsoluteLayout;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	import com.vaadin.server.Sizeable.Unit;
	import com.vaadin.ui.Component;
	import com.vaadin.ui.ComponentContainer;

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

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

	/** The layout. */
	private AbsoluteLayout layout;

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

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

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

	for (IEmbeddableEditpart childPresentation : getChildren()) {
	YEmbeddable yChild = (YEmbeddable) childPresentation.getModel();
	addChildComponent(childPresentation,
	modelAccess.getCellStyle(yChild));
	}
	}

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

	Component child = (Component) editpart.render(layout);
	layout.addComponent(child, toCssString(yStyle));

	}

	/* (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#notify(org.eclipse.osbp.runtime.designer.api.IDesignerService.DesignEvent)
	*/
	@Override
	public void notify(DesignEvent event) {
	super.notify(event);

	if (getWidget() != null) {
	if (event.getType() == EventType.ENABLED) {
	layout.setResizable(true);
	layout.setUseAlignments(true);
	} else {
	layout.setResizable(false);
	layout.setUseAlignments(false);
	}
	}
	}

	/**
	* To css string.
	*
	* @param yStyle
	* the y style
	* @return the string
	*/
	private String toCssString(YAbsoluteLayoutCellStyle yStyle) {
	AbsoluteLayout.ComponentPosition pos = this.layout.new ComponentPosition();
	if (yStyle != null) {
	pos.setTop(toPositionFloat(yStyle.getTop()), Unit.PIXELS);
	pos.setBottom(toPositionFloat(yStyle.getBottom()), Unit.PIXELS);
	pos.setLeft(toPositionFloat(yStyle.getLeft()), Unit.PIXELS);
	pos.setRight(toPositionFloat(yStyle.getRight()), Unit.PIXELS);
	pos.setZIndex(yStyle.getZIndex());
	}
	return pos.getCSSString();
	}

	/**
	* To position float.
	*
	* @param value
	* the value
	* @return the float
	*/
	private Float toPositionFloat(int value) {
	return value == -1 ? null : Float.valueOf(value);
	}

	/* (non-Javadoc)
	* @see org.eclipse.osbp.runtime.web.ecview.presentation.vaadin.common.AbstractVaadinWidgetPresenter#doCreateWidget(java.lang.Object)
	*/
	@Override
	public ComponentContainer doCreateWidget(Object parent) {
	if (layout == null) {
	layout = new AbsoluteLayout();
	setupComponent(layout, getCastedModel());
	layout.setResizable(modelAccess.yLayout.isChildResizeEnabled());
	layout.setUseAlignments(isUseAlignments());

	associateWidget(layout, modelAccess.yLayout);

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

	if (modelAccess.isCssClassValid()) {
	layout.addStyleName(modelAccess.getCssClass());
	} else {
	layout.addStyleName(CSS_CLASS_CONTROL);
	}

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

	// initialize all children
	initializeChildren();

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

	return layout;
	}

	/**
	* Checks if is use alignments.
	*
	* @return true, if is use alignments
	*/
	private boolean isUseAlignments() {
	return modelAccess.yLayout.isChildResizeEnabled()
	\|\| modelAccess.yLayout.isChildMoveEnabled();
	}

	/**
	* 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 layout;
	}

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

	// unbind all active bindings
	unbind();

	// remove assocations
	unassociateWidget(layout);

	// unrender the children
	unrenderChildren();

	layout = 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 (layout != null && child.isRendered()) {
	layout.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 YAbsoluteLayout yLayout;

	/**
	* Instantiates a new model access.
	*
	* @param yLayout
	* the y layout
	*/
	public ModelAccess(YAbsoluteLayout 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.YAbsoluteLayout#getCellStyles()
	*/
	public EList<YAbsoluteLayoutCellStyle> getCellStyles() {
	return yLayout.getCellStyles();
	}

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