org.eclipse.osbp.ecview.core.extension.editparts.emf/src/org/eclipse/osbp/ecview/core/extension/editpart/emf/TabSheetEditpart.java - osbp/org.eclipse.osbp.ecview.core - 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.ecview.core.extension.editpart.emf;

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

 import org.eclipse.emf.common.notify.Notification;
 import org.eclipse.osbp.ecview.core.common.editpart.emf.EmbeddableEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.emf.LayoutEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.validation.IValidatorEditpart;
 import org.eclipse.osbp.ecview.core.extension.model.extension.ExtensionModelPackage;
 import org.eclipse.osbp.ecview.core.extension.model.extension.YTab;
 import org.eclipse.osbp.ecview.core.extension.model.extension.YTabSheet;
 import org.eclipse.osbp.ecview.core.ui.core.editparts.extension.ITabEditpart;
 import org.eclipse.osbp.ecview.core.ui.core.editparts.extension.ITabSheetEditpart;
 import org.eclipse.osbp.ecview.core.ui.core.editparts.extension.presentation.ITabSheetPresentation;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

 public class TabSheetEditpart extends EmbeddableEditpart<YTabSheet> implements
 		ITabSheetEditpart {

 	private static final Logger LOGGER = LoggerFactory
 			.getLogger(LayoutEditpart.class);
 	private List<ITabEditpart> tabEditparts;

 	/**
 	 * Default constructor.
 	 */
 	public TabSheetEditpart() {

 	}

 	@Override
 	public List<ITabEditpart> getTabs() {
 		if (tabEditparts == null) {
 			internalLoadTabs();
 		}
 		return Collections.unmodifiableList(tabEditparts);
 	}

 	@Override
 	protected void internalDispose() {
 		try {
 			// lazy loading: edit parts also have to be disposed if they have
 			// not been loaded yet,
 			// but exist in the model.
 			if (tabEditparts != null || getModel().getTabs().size() > 0) {
 				List<ITabEditpart> tempElements = getTabs();
 				synchronized (tabEditparts) {
 					for (ITabEditpart editpart : tempElements
 							.toArray(new ITabEditpart[tempElements.size()])) {
 						editpart.dispose();
 					}
 				}
 				tabEditparts = null;
 			}
 		} finally {
 			super.internalDispose();
 		}
 	}

 	@Override
 	public void addTab(ITabEditpart element) {
 		try {
 			checkDisposed();

 			// add the element by using the model
 			//
 			YTabSheet yLayout = getModel();
 			YTab yTab = (YTab) element.getModel();
 			yLayout.getTabs().add(yTab);
 			// BEGIN SUPRESS CATCH EXCEPTION
 		} catch (RuntimeException e) {
 			// END SUPRESS CATCH EXCEPTION
 			LOGGER.error("{}", e);
 			throw e;
 		}
 	}

 	@Override
 	public void removeTab(ITabEditpart element) {
 		try {
 			checkDisposed();

 			// remove the element by using the model
 			//
 			YTabSheet yLayout = getModel();
 			YTab yTab = (YTab) element.getModel();
 			yLayout.getTabs().remove(yTab);
 			// BEGIN SUPRESS CATCH EXCEPTION
 		} catch (RuntimeException e) {
 			// END SUPRESS CATCH EXCEPTION
 			LOGGER.error("{}", e);
 			throw e;
 		}
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	protected void handleModelAdd(int featureId, Notification notification) {
 		checkDisposed();

 		switch (featureId) {
 		case ExtensionModelPackage.YTAB_SHEET__TABS:
 			YTab yTab = (YTab) notification.getNewValue();

 			ITabEditpart editPart = (ITabEditpart) getEditpart(viewContext, yTab);
 			internalAddElement(editPart);

 			// handle the presentation
 			//
 			if (isPresentationPresent()) {
 				ITabSheetPresentation<?> presenter = getPresentation();
 				presenter.renderTabs(true);
 			}
 			break;
 		default:
 			break;
 		}
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	@SuppressWarnings("unchecked")
 	protected void handleModelAddMany(int featureId, Notification notification) {
 		checkDisposed();

 		switch (featureId) {
 		case ExtensionModelPackage.YTAB_SHEET__TABS:
 			List<YTab> yTabs = (List<YTab>) notification.getNewValue();
 			for (YTab yTab : yTabs) {
 				ITabEditpart editPart = (ITabEditpart) getEditpart(viewContext, yTab);
 				internalAddElement(editPart);
 			}

 			// handle the presentation
 			//
 			if (isPresentationPresent()) {
 				ITabSheetPresentation<?> presenter = getPresentation();
 				presenter.renderTabs(true);
 			}
 			break;
 		default:
 			break;
 		}
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	@SuppressWarnings("unchecked")
 	protected void handleModelRemoveMany(int featureId, Notification notification) {
 		checkDisposed();

 		switch (featureId) {
 		case ExtensionModelPackage.YTAB_SHEET__TABS:
 			List<YTab> yTabs = (List<YTab>) notification.getOldValue();
 			for (YTab yTab : yTabs) {
 				ITabEditpart editPart = (ITabEditpart) getEditpart(viewContext, yTab);
 				internalRemoveTab(editPart);
 			}

 			// handle the presentation
 			//
 			if (isPresentationPresent()) {
 				ITabSheetPresentation<?> presenter = getPresentation();
 				presenter.renderTabs(true);
 			}
 			break;
 		default:
 			break;
 		}
 	}

 	@Override
 	protected void handleModelMove(int featureId, Notification notification) {
 		checkDisposed();

 		switch (featureId) {
 		case ExtensionModelPackage.YTAB_SHEET__TABS:
 			YTab yTab = (YTab) notification.getNewValue();

 			ITabEditpart editPart = (ITabEditpart) getEditpart(viewContext, yTab);
 			internalMoveTab(editPart, notification.getPosition());

 			// handle the presentation
 			//
 			if (isPresentationPresent()) {
 				ITabSheetPresentation<?> presenter = getPresentation();
 				presenter.renderTabs(true);
 			}
 			break;
 		default:
 			break;
 		}
 	}

 	/**
 	 * Returns true, if the presenter is present.
 	 *
 	 * @return
 	 */
 	private boolean isPresentationPresent() {
 		return internalGetPresentation() != null;
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	protected void handleModelRemove(int featureId, Notification notification) {
 		checkDisposed();

 		switch (featureId) {
 		case ExtensionModelPackage.YTAB_SHEET__TABS:
 			YTab yTab = (YTab) notification.getOldValue();

 			ITabEditpart editPart = (ITabEditpart) getEditpart(viewContext, yTab);
 			internalRemoveTab(editPart);

 			// handle the presentation
 			//
 			if (isPresentationPresent()) {
 				ITabSheetPresentation<?> presenter = getPresentation();
 				presenter.renderTabs(true);
 			}
 			break;
 		default:
 			break;
 		}
 	}

 	/**
 	 * Is called to change the internal state and add the given editpart to the
 	 * list of tabs.
 	 *
 	 * @param editpart
 	 *            The editpart to be added
 	 */
 	protected void internalAddElement(ITabEditpart editpart) {
 		checkDisposed();

 		if (tabEditparts == null) {
 			internalLoadTabs();
 		}
 		if (!tabEditparts.contains(editpart)) {
 			tabEditparts.add(editpart);
 		}
 	}

 	/**
 	 * Is called to change the internal state and to move the given editpart in
 	 * the list of tabs.
 	 *
 	 * @param editpart
 	 *            The editpart to be inserted
 	 * @param index
 	 *            The index to move the element.
 	 */
 	protected void internalMoveTab(ITabEditpart editpart, int index) {
 		checkDisposed();

 		if (tabEditparts == null) {
 			internalLoadTabs();
 		} else if (!tabEditparts.contains(editpart)) {
 			throw new RuntimeException(String.format(
 					"Editpart %s is not contained in tabs", editpart.getId()));
 		} else {
 			tabEditparts.remove(editpart);
 			tabEditparts.add(index, editpart);
 		}
 	}

 	/**
 	 * Is called to change the internal state and remove the given editpart from
 	 * the list of tabs.
 	 *
 	 * @param editpart
 	 *            The editpart to be removed
 	 */
 	protected void internalRemoveTab(ITabEditpart editpart) {
 		checkDisposed();

 		if (tabEditparts != null && editpart != null) {
 			tabEditparts.remove(editpart);
 		}
 	}

 	/**
 	 * Is called to load and initialize all tabs.
 	 */
 	protected void internalLoadTabs() {
 		checkDisposed();

 		if (tabEditparts == null) {
 			tabEditparts = new ArrayList<ITabEditpart>();
 			for (YTab yTab : getModel().getTabs()) {
 				ITabEditpart editPart = getEditpart(viewContext, yTab);
 				internalAddElement(editPart);
 			}
 		}
 	}

 	@SuppressWarnings("unchecked")
 	@Override
 	public ITabSheetPresentation<?> getPresentation() {
 		return super.getPresentation();
 	}

 	@Override
 	public List<IValidatorEditpart> getDatatypeValidators() {
 		return Collections.emptyList();
 	}

 	@Override
 	public void renderTab(ITabEditpart editpart) {
 		if (isPresentationPresent()) {
 			ITabSheetPresentation<?> presenter = getPresentation();
 			presenter.renderTabs(true);
 		}
 	}

 	@Override
 	public void disposeTab(ITabEditpart editpart) {
 		if (isPresentationPresent()) {
 			ITabSheetPresentation<?> presenter = getPresentation();
 			presenter.unrenderTab(editpart);
 			editpart.dispose();
 		}
 	}

 	@Override
 	public void unrenderTab(ITabEditpart editpart) {
 		if (isPresentationPresent()) {
 			ITabSheetPresentation<?> presenter = getPresentation();
 			presenter.unrenderTab(editpart);
 		}
 	}
 }
	/**
	* 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.ecview.core.extension.editpart.emf;

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

	import org.eclipse.emf.common.notify.Notification;
	import org.eclipse.osbp.ecview.core.common.editpart.emf.EmbeddableEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.emf.LayoutEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.validation.IValidatorEditpart;
	import org.eclipse.osbp.ecview.core.extension.model.extension.ExtensionModelPackage;
	import org.eclipse.osbp.ecview.core.extension.model.extension.YTab;
	import org.eclipse.osbp.ecview.core.extension.model.extension.YTabSheet;
	import org.eclipse.osbp.ecview.core.ui.core.editparts.extension.ITabEditpart;
	import org.eclipse.osbp.ecview.core.ui.core.editparts.extension.ITabSheetEditpart;
	import org.eclipse.osbp.ecview.core.ui.core.editparts.extension.presentation.ITabSheetPresentation;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	public class TabSheetEditpart extends EmbeddableEditpart<YTabSheet> implements
	ITabSheetEditpart {

	private static final Logger LOGGER = LoggerFactory
	.getLogger(LayoutEditpart.class);
	private List<ITabEditpart> tabEditparts;

	/**
	* Default constructor.
	*/
	public TabSheetEditpart() {

	}

	@Override
	public List<ITabEditpart> getTabs() {
	if (tabEditparts == null) {
	internalLoadTabs();
	}
	return Collections.unmodifiableList(tabEditparts);
	}

	@Override
	protected void internalDispose() {
	try {
	// lazy loading: edit parts also have to be disposed if they have
	// not been loaded yet,
	// but exist in the model.
	if (tabEditparts != null \|\| getModel().getTabs().size() > 0) {
	List<ITabEditpart> tempElements = getTabs();
	synchronized (tabEditparts) {
	for (ITabEditpart editpart : tempElements
	.toArray(new ITabEditpart[tempElements.size()])) {
	editpart.dispose();
	}
	}
	tabEditparts = null;
	}
	} finally {
	super.internalDispose();
	}
	}

	@Override
	public void addTab(ITabEditpart element) {
	try {
	checkDisposed();

	// add the element by using the model
	//
	YTabSheet yLayout = getModel();
	YTab yTab = (YTab) element.getModel();
	yLayout.getTabs().add(yTab);
	// BEGIN SUPRESS CATCH EXCEPTION
	} catch (RuntimeException e) {
	// END SUPRESS CATCH EXCEPTION
	LOGGER.error("{}", e);
	throw e;
	}
	}

	@Override
	public void removeTab(ITabEditpart element) {
	try {
	checkDisposed();

	// remove the element by using the model
	//
	YTabSheet yLayout = getModel();
	YTab yTab = (YTab) element.getModel();
	yLayout.getTabs().remove(yTab);
	// BEGIN SUPRESS CATCH EXCEPTION
	} catch (RuntimeException e) {
	// END SUPRESS CATCH EXCEPTION
	LOGGER.error("{}", e);
	throw e;
	}
	}

	/**
	* {@inheritDoc}
	*/
	protected void handleModelAdd(int featureId, Notification notification) {
	checkDisposed();

	switch (featureId) {
	case ExtensionModelPackage.YTAB_SHEET__TABS:
	YTab yTab = (YTab) notification.getNewValue();

	ITabEditpart editPart = (ITabEditpart) getEditpart(viewContext, yTab);
	internalAddElement(editPart);

	// handle the presentation
	//
	if (isPresentationPresent()) {
	ITabSheetPresentation<?> presenter = getPresentation();
	presenter.renderTabs(true);
	}
	break;
	default:
	break;
	}
	}

	/**
	* {@inheritDoc}
	*/
	@SuppressWarnings("unchecked")
	protected void handleModelAddMany(int featureId, Notification notification) {
	checkDisposed();

	switch (featureId) {
	case ExtensionModelPackage.YTAB_SHEET__TABS:
	List<YTab> yTabs = (List<YTab>) notification.getNewValue();
	for (YTab yTab : yTabs) {
	ITabEditpart editPart = (ITabEditpart) getEditpart(viewContext, yTab);
	internalAddElement(editPart);
	}

	// handle the presentation
	//
	if (isPresentationPresent()) {
	ITabSheetPresentation<?> presenter = getPresentation();
	presenter.renderTabs(true);
	}
	break;
	default:
	break;
	}
	}

	/**
	* {@inheritDoc}
	*/
	@SuppressWarnings("unchecked")
	protected void handleModelRemoveMany(int featureId, Notification notification) {
	checkDisposed();

	switch (featureId) {
	case ExtensionModelPackage.YTAB_SHEET__TABS:
	List<YTab> yTabs = (List<YTab>) notification.getOldValue();
	for (YTab yTab : yTabs) {
	ITabEditpart editPart = (ITabEditpart) getEditpart(viewContext, yTab);
	internalRemoveTab(editPart);
	}

	// handle the presentation
	//
	if (isPresentationPresent()) {
	ITabSheetPresentation<?> presenter = getPresentation();
	presenter.renderTabs(true);
	}
	break;
	default:
	break;
	}
	}

	@Override
	protected void handleModelMove(int featureId, Notification notification) {
	checkDisposed();

	switch (featureId) {
	case ExtensionModelPackage.YTAB_SHEET__TABS:
	YTab yTab = (YTab) notification.getNewValue();

	ITabEditpart editPart = (ITabEditpart) getEditpart(viewContext, yTab);
	internalMoveTab(editPart, notification.getPosition());

	// handle the presentation
	//
	if (isPresentationPresent()) {
	ITabSheetPresentation<?> presenter = getPresentation();
	presenter.renderTabs(true);
	}
	break;
	default:
	break;
	}
	}

	/**
	* Returns true, if the presenter is present.
	*
	* @return
	*/
	private boolean isPresentationPresent() {
	return internalGetPresentation() != null;
	}

	/**
	* {@inheritDoc}
	*/
	protected void handleModelRemove(int featureId, Notification notification) {
	checkDisposed();

	switch (featureId) {
	case ExtensionModelPackage.YTAB_SHEET__TABS:
	YTab yTab = (YTab) notification.getOldValue();

	ITabEditpart editPart = (ITabEditpart) getEditpart(viewContext, yTab);
	internalRemoveTab(editPart);

	// handle the presentation
	//
	if (isPresentationPresent()) {
	ITabSheetPresentation<?> presenter = getPresentation();
	presenter.renderTabs(true);
	}
	break;
	default:
	break;
	}
	}

	/**
	* Is called to change the internal state and add the given editpart to the
	* list of tabs.
	*
	* @param editpart
	* The editpart to be added
	*/
	protected void internalAddElement(ITabEditpart editpart) {
	checkDisposed();

	if (tabEditparts == null) {
	internalLoadTabs();
	}
	if (!tabEditparts.contains(editpart)) {
	tabEditparts.add(editpart);
	}
	}

	/**
	* Is called to change the internal state and to move the given editpart in
	* the list of tabs.
	*
	* @param editpart
	* The editpart to be inserted
	* @param index
	* The index to move the element.
	*/
	protected void internalMoveTab(ITabEditpart editpart, int index) {
	checkDisposed();

	if (tabEditparts == null) {
	internalLoadTabs();
	} else if (!tabEditparts.contains(editpart)) {
	throw new RuntimeException(String.format(
	"Editpart %s is not contained in tabs", editpart.getId()));
	} else {
	tabEditparts.remove(editpart);
	tabEditparts.add(index, editpart);
	}
	}

	/**
	* Is called to change the internal state and remove the given editpart from
	* the list of tabs.
	*
	* @param editpart
	* The editpart to be removed
	*/
	protected void internalRemoveTab(ITabEditpart editpart) {
	checkDisposed();

	if (tabEditparts != null && editpart != null) {
	tabEditparts.remove(editpart);
	}
	}

	/**
	* Is called to load and initialize all tabs.
	*/
	protected void internalLoadTabs() {
	checkDisposed();

	if (tabEditparts == null) {
	tabEditparts = new ArrayList<ITabEditpart>();
	for (YTab yTab : getModel().getTabs()) {
	ITabEditpart editPart = getEditpart(viewContext, yTab);
	internalAddElement(editPart);
	}
	}
	}

	@SuppressWarnings("unchecked")
	@Override
	public ITabSheetPresentation<?> getPresentation() {
	return super.getPresentation();
	}

	@Override
	public List<IValidatorEditpart> getDatatypeValidators() {
	return Collections.emptyList();
	}

	@Override
	public void renderTab(ITabEditpart editpart) {
	if (isPresentationPresent()) {
	ITabSheetPresentation<?> presenter = getPresentation();
	presenter.renderTabs(true);
	}
	}

	@Override
	public void disposeTab(ITabEditpart editpart) {
	if (isPresentationPresent()) {
	ITabSheetPresentation<?> presenter = getPresentation();
	presenter.unrenderTab(editpart);
	editpart.dispose();
	}
	}

	@Override
	public void unrenderTab(ITabEditpart editpart) {
	if (isPresentationPresent()) {
	ITabSheetPresentation<?> presenter = getPresentation();
	presenter.unrenderTab(editpart);
	}
	}
	}