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/***************************************************
* Copyright (c) 2010 Atos Origin.
*
* 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:
* Atos Origin - Initial API and implementation
*
****************************************************/
package org.eclipse.papyrus.views.modelexplorer.actions;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.edit.provider.IItemLabelProvider;
import org.eclipse.emf.edit.ui.provider.ExtendedImageRegistry;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.papyrus.infra.widgets.toolbox.dialog.InformationDialog;
import org.eclipse.papyrus.views.modelexplorer.Activator;
import org.eclipse.papyrus.views.modelexplorer.preferences.INavigatorPreferenceConstants;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
/**
* GenericTransformAction is an action which transforms and EObject by changing
* its eclass.
*/
public class GenericTransformAction extends Action {
/** title of error dialog */
private static final String ERROR_TITLE = "Impossible to continue transformation.";
/** message in error dialog */
private static final String ERROR_MESSAGE = "The transformation can not continue.\n"
+ "Some objects referencing your selection could not be able to reference the result of the transformation.\n"
+ "For UML and SysML, applied stereotypes could not be applicable on the result of the transformation.\n"
+ "Before performing the transformation please delete or unapply the elements listed bellow.";
/** title of error dialog */
private static final String WARNING_TITLE = "Warning: transformation command";
/** WARNING_MESSAGE for transform command execution */
private static final String WARNING_MESSAGE = "You are trying to transform an element typed %s into %s.\nThis operation will copy all the common elements between the two eclasses.\nDo you want to continue ?";
/** The EClass to transform into. */
private EClass targetEClass = null;
/** The element to transform. */
private EObject element;
/**
* Constructor for a new action.
*
* @param transformationEClass
* the eclass element must be transformed into
* @param adapterFactory
* the adapter factory for providing label image
* @param elementToTransform
* the element to transform
*/
public GenericTransformAction(EClass transformationEClass,
AdapterFactory adapterFactory, EObject elementToTransform) {
super(transformationEClass.getName());
targetEClass = transformationEClass;
element = elementToTransform;
if (adapterFactory != null) {
EObject tmpEobject = transformationEClass.getEPackage()
.getEFactoryInstance().create(transformationEClass);
IItemLabelProvider provider = (IItemLabelProvider) adapterFactory
.adapt(tmpEobject, IItemLabelProvider.class);
setImageDescriptor(ExtendedImageRegistry.INSTANCE
.getImageDescriptor(provider.getImage(tmpEobject)));
}
}
/**
* Transform the element and update referencing diagrams.
*
* @see org.eclipse.jface.action.Action#run()
*/
@Override
public void run() {
GenericTransformer transformer = new GenericTransformer(element);
MultiStatus messages = transformer
.isTransformationPossible(targetEClass);
if (messages != null && messages.getChildren().length == 0) {
String message = String.format(WARNING_MESSAGE, this.element
.eClass().getName(), targetEClass.getName());
InformationDialog dialog = new InformationDialog(
Display.getDefault().getActiveShell(),
WARNING_TITLE,
message,
Activator.getDefault().getPreferenceStore(),
INavigatorPreferenceConstants.PREF_NAVIGATOR_TRANSFORM_INTO_SHOW_POPUP,
SWT.YES | SWT.NO, MessageDialog.INFORMATION, new String[] {
IDialogConstants.YES_LABEL,
IDialogConstants.NO_LABEL });
int result = dialog.open();
if (result == SWT.YES || result == Window.OK) {
transformer.transform(targetEClass);
}
} else {
ErrorDialog errorDialog = new ErrorDialog(Display.getDefault()
.getActiveShell(), ERROR_TITLE, ERROR_MESSAGE, messages,
IStatus.WARNING);
errorDialog.open();
}
}
}
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