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/*******************************************************************************
* Copyright (c) 2009, 2011 Mia-Software.
* 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:
* Nicolas Bros (Mia-Software) - initial API and implementation
* Nicolas Guyomar (Mia-Software) - Bug 349546 - EMF Facet facetSet editor
*******************************************************************************/
package org.eclipse.emf.facet.efacet.ui.internal.widget;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EDataType;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.facet.efacet.ui.internal.Messages;
import org.eclipse.emf.facet.efacet.ui.internal.composites.FilteredElementSelectionComposite;
import org.eclipse.emf.facet.efacet.ui.internal.composites.SelectETypeComposite.ETypeSelectionOptions;
import org.eclipse.swt.widgets.Composite;
/**
* A control to select an {@link EClass}, that can be filtered using the associated text field.
*/
public class EClassifierSelectionControl extends FilteredElementSelectionComposite {
private final Map<String, EClassifier> stringToEClassifierMap = new HashMap<String, EClassifier>();
private final ETypeSelectionOptions eTypeSelectionOption;
private String metamodelNsUri;
public EClassifierSelectionControl(final Composite parent, final String metamodelNsUri, final ETypeSelectionOptions eTypeSelectionOption) {
super(parent, true, false);
this.eTypeSelectionOption = eTypeSelectionOption;
this.metamodelNsUri = metamodelNsUri;
}
public void updateList(final String metamodelNsUri2) {
this.metamodelNsUri = metamodelNsUri2;
EPackage ePackage = EPackage.Registry.INSTANCE.getEPackage(this.metamodelNsUri);
if (ePackage != null) {
List<String> eClasses = new ArrayList<String>();
EList<EClassifier> eClassifiers = ePackage.getEClassifiers();
if (this.eTypeSelectionOption == ETypeSelectionOptions.ECLASS) {
for (EClassifier eClassifier : eClassifiers) {
if (eClassifier instanceof EClass) {
eClasses.add(eClassifier.getName());
this.stringToEClassifierMap.put(eClassifier.getName(), eClassifier);
}
}
} else if (this.eTypeSelectionOption == ETypeSelectionOptions.EDATATYPE) {
for (EClassifier eClassifier : eClassifiers) {
if (eClassifier instanceof EDataType) {
eClasses.add(eClassifier.getName());
this.stringToEClassifierMap.put(eClassifier.getName(), eClassifier);
}
}
} else {
for (EClassifier eClassifier : eClassifiers) {
eClasses.add(eClassifier.getName());
this.stringToEClassifierMap.put(eClassifier.getName(), eClassifier);
}
}
if (eClasses.isEmpty()) {
eClasses.add(Messages.No_result_found);
setEnabled(false);
} else {
setEnabled(true);
}
setElements(eClasses.toArray());
}
}
public EClassifier getSelectedEClassifier() {
Object[] selectElements = getSelectedElements();
if (selectElements != null && selectElements.length > 0) {
if (this.stringToEClassifierMap.containsKey(selectElements[0])) {
return this.stringToEClassifierMap.get(selectElements[0]);
}
}
return null;
}
}
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