1 files changed, 431 insertions, 431 deletions
diff --git a/plugins/facet/org.eclipse.papyrus.emf.facet.efacet.ui/src/org/eclipse/papyrus/emf/facet/efacet/ui/internal/widget/ETypedElementSelectionControl.java b/plugins/facet/org.eclipse.papyrus.emf.facet.efacet.ui/src/org/eclipse/papyrus/emf/facet/efacet/ui/internal/widget/ETypedElementSelectionControl.java
index a12ce14b409..89c491793ad 100644
--- a/plugins/facet/org.eclipse.papyrus.emf.facet.efacet.ui/src/org/eclipse/papyrus/emf/facet/efacet/ui/internal/widget/ETypedElementSelectionControl.java
+++ b/plugins/facet/org.eclipse.papyrus.emf.facet.efacet.ui/src/org/eclipse/papyrus/emf/facet/efacet/ui/internal/widget/ETypedElementSelectionControl.java
@@ -1,431 +1,431 @@
-/*******************************************************************************
- * Copyright (c) 2010, 2012 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) - Bug 370806 - [table] rewrite the "allowed contents" query selection dialog for v0.2
- *     Vincent Lorenzo (CEA-LIST) - Bug 372644 - Create Customizable tooltips for the TreeViewer using a CustomizableLabelProvider
- *     Gregoire Dupe (Mia-Software) - Bug 372644 - Create Customizable tooltips for the TreeViewer using a CustomizableLabelProvider
- *     Gregoire Dupe (Mia-Software) - Bug 373078 - API Cleaning
- *     Vincent Lorenzo (CEA-LIST) - Bug 357621 - Improve the label displayed for Customization and Facets
- *     Gregoire Dupe (Mia-Software) - Bug 372626 - Aggregates
- *     Olivier Remaud (Soft-Maint) - Bug 377615 - Query View filtering
- *     Vincent Lorenzo (CEA-LIST) - Bug 357621 - Improve the label displayed for Customization and Facets
- *     Vincent Lorenzo (CEA-LIST) - Bug 377909 - The elements displayed in the ETypedElement dialog are not sorted by alphabetic order
- *******************************************************************************/
-package org.eclipse.papyrus.emf.facet.efacet.ui.internal.widget;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Set;
-
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Status;
-import org.eclipse.emf.common.util.TreeIterator;
-import org.eclipse.emf.ecore.EObject;
-import org.eclipse.emf.ecore.ETypedElement;
-import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
-import org.eclipse.jface.viewers.ColumnViewerToolTipSupport;
-import org.eclipse.jface.viewers.IBaseLabelProvider;
-import org.eclipse.jface.viewers.IContentProvider;
-import org.eclipse.jface.viewers.ILabelProvider;
-import org.eclipse.jface.viewers.IOpenListener;
-import org.eclipse.jface.viewers.ISelectionChangedListener;
-import org.eclipse.jface.viewers.IStructuredSelection;
-import org.eclipse.jface.viewers.ITreeContentProvider;
-import org.eclipse.jface.viewers.OpenEvent;
-import org.eclipse.jface.viewers.SelectionChangedEvent;
-import org.eclipse.jface.viewers.StructuredSelection;
-import org.eclipse.jface.viewers.StructuredViewer;
-import org.eclipse.jface.viewers.Viewer;
-import org.eclipse.jface.viewers.ViewerComparator;
-import org.eclipse.jface.viewers.ViewerFilter;
-import org.eclipse.osgi.util.NLS;
-import org.eclipse.papyrus.emf.facet.custom.core.ICustomizationManager;
-import org.eclipse.papyrus.emf.facet.custom.core.ICustomizationManagerFactory;
-import org.eclipse.papyrus.emf.facet.custom.ui.ICustomizedLabelProviderFactory;
-import org.eclipse.papyrus.emf.facet.efacet.ui.internal.Activator;
-import org.eclipse.papyrus.emf.facet.efacet.ui.internal.Messages;
-import org.eclipse.papyrus.emf.facet.efacet.ui.internal.utils.ImageProvider;
-import org.eclipse.papyrus.emf.facet.util.core.internal.exported.IFilter;
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.events.SelectionAdapter;
-import org.eclipse.swt.events.SelectionEvent;
-import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.layout.GridData;
-import org.eclipse.swt.layout.GridLayout;
-import org.eclipse.swt.widgets.Button;
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.ui.dialogs.FilteredTree;
-import org.eclipse.ui.dialogs.PatternFilter;
-
-/**
- * A control that displays a tree of ETypedElements under a list of containers (EPackages for example), with a filter
- * text field.
- */
-public class ETypedElementSelectionControl implements IETypedElementTabSelectionWidgetInternal {
-
-	public static final String TAB_ID = "flat.view.id"; //$NON-NLS-1$
-
-	public static final String TITLE = Messages.ETypedElementSelectionControl_FlatView;
-
-	/** An OK status, but without the "OK" message, because we don't want "OK" to appear in the status bar */
-	private static final IStatus OK_STATUS = new Status(IStatus.OK, Activator.PLUGIN_ID, ""); //$NON-NLS-1$
-
-	private FilteredTree filteredTree;
-	protected Collection<? extends ETypedElement> available;
-	private final int selectionMaxSize;
-	private final boolean allowEmpty;
-	private Button rbNoSelection;
-	private Button rbSelection;
-	private IStatus validationStatus;
-	private final IBaseLabelProvider labelProvider;
-	private final Composite cParent;
-	private final Collection<? extends EObject> knownEPackage;
-
-	/** Create a tree with a filter text field to select ETypedElements. */
-	public ETypedElementSelectionControl(final Composite parentComposite,
-			final int selectionMaxSize, final boolean allowEmpty,
-			final ICustomizationManager customManager,
-			final Collection<? extends EObject> knownEPackage) {
-		this.cParent = parentComposite;
-		this.knownEPackage = knownEPackage;
-		this.selectionMaxSize = selectionMaxSize;
-		this.allowEmpty = allowEmpty;
-		ICustomizationManager tempCustomManager;
-		if (customManager == null) {
-			tempCustomManager = ICustomizationManagerFactory.DEFAULT.getOrCreateICustomizationManager(new ResourceSetImpl());
-		} else {
-			tempCustomManager = customManager;
-		}
-		this.labelProvider = ICustomizedLabelProviderFactory.DEFAULT
-				.createCustomizedLabelProvider(tempCustomManager);
-	}
-
-	public void createContents() {
-		final Composite composite = new Composite(this.cParent, SWT.NONE);
-		composite.setLayout(new GridLayout());
-		composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
-
-		if (this.allowEmpty) {
-			this.rbNoSelection = new Button(composite, SWT.RADIO);
-			this.rbNoSelection.setText(Messages.ETypedElementSelectionDialog_radioButtonNoSelection);
-			this.rbNoSelection.setSelection(true);
-			this.rbNoSelection.addSelectionListener(new SelectionAdapter() {
-				@Override
-				public void widgetSelected(final SelectionEvent event) {
-					final boolean selected = getRadioButtonNoSelection().getSelection();
-					setETypedElementSelectionEnabled(!selected);
-					if (selected) {
-						setSelection(StructuredSelection.EMPTY);
-					}
-				}
-			});
-			this.rbSelection = new Button(composite, SWT.RADIO);
-			if (this.selectionMaxSize > 1) {
-				this.rbSelection.setText(Messages.ETypedElementSelectionDialog_radioButtonMultiSelection);
-			} else {
-				this.rbSelection.setText(Messages.ETypedElementSelectionDialog_radioButtonSingleSelection);
-			}
-			this.rbSelection.setSelection(false);
-			this.rbSelection.addSelectionListener(new SelectionAdapter() {
-				@Override
-				public void widgetSelected(final SelectionEvent event) {
-					final boolean selected = getRadioButtonSelection().getSelection();
-					setETypedElementSelectionEnabled(selected);
-					if (!selected) {
-						setSelection(StructuredSelection.EMPTY);
-					}
-				}
-			});
-		}
-
-		createFilteredTree(composite);
-
-		this.filteredTree.getViewer().addSelectionChangedListener(new ISelectionChangedListener() {
-			public void selectionChanged(final SelectionChangedEvent event) {
-				updateValidationStatus();
-			}
-		});
-
-		if (this.allowEmpty) {
-			setETypedElementSelectionEnabled(false);
-		}
-
-		updateValidationStatus();
-	}
-
-	public void addOpenListener(final IOpenListener openListener) {
-		// double-click or enter to choose the selected typed element
-		this.filteredTree.getViewer().addOpenListener(new IOpenListener() {
-			public void open(final OpenEvent event) {
-				// only if the selection is valid
-				if (!isErrorStatus()) {
-					openListener.open(event);
-				}
-			}
-		});
-	}
-
-	public void addSelectionChangedListener(final ISelectionChangedListener listener) {
-		this.filteredTree.getViewer().addSelectionChangedListener(listener);
-	}
-
-	private void createFilteredTree(final Composite parentComposite) {
-		this.filteredTree = new FilteredTree(parentComposite, selectionStyle(this.selectionMaxSize) | SWT.H_SCROLL | SWT.V_SCROLL
-				| SWT.BORDER, createPatternFilter(), true);
-		// allow tooltip for this viewer
-		ColumnViewerToolTipSupport.enableFor(this.filteredTree.getViewer());
-		this.filteredTree.getViewer().setContentProvider(createContentProvider());
-		this.filteredTree.getViewer().setLabelProvider(this.labelProvider);
-		this.filteredTree.getViewer().setFilters(new ViewerFilter[] { this.filteredTree.getPatternFilter() });
-		this.filteredTree.getViewer().setComparator(new ViewerComparator());
-	}
-
-	protected void updateValidationStatus() {
-		if (this.filteredTree == null) {
-			return;
-		}
-
-		final Status errorElements = new Status(IStatus.ERROR, Activator.PLUGIN_ID,
-				Messages.ETypedElementSelectionControl_invalidSelectionETypedElementsOnly);
-		final Status errorSelection = new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.ETypedElementSelectionControl_invalidSelection);
-
-		final IStructuredSelection selection = (IStructuredSelection) this.filteredTree.getViewer().getSelection();
-		IStatus newStatus = ETypedElementSelectionControl.OK_STATUS;
-		if (!this.allowEmpty && selection.isEmpty()) {
-			newStatus = new Status(IStatus.ERROR, Activator.PLUGIN_ID, NLS.bind(Messages.ETypedElementSelectionControl_invalidSelectionAtLeastOneElement,
-					Integer.valueOf(this.selectionMaxSize)));
-		} else if (selection.size() > this.selectionMaxSize) {
-			newStatus = new Status(IStatus.ERROR, Activator.PLUGIN_ID, NLS.bind(Messages.ETypedElementSelectionControl_invalidSelectionAtMostXElements,
-					Integer.valueOf(this.selectionMaxSize)));
-		} else {
-			final Iterator<?> iterator = selection.iterator();
-			while (iterator.hasNext()) {
-				final Object selectedElement = iterator.next();
-				if (!(selectedElement instanceof ETypedElement)) {
-					newStatus = errorElements;
-					break;
-				}
-			}
-		}
-		setValidationStatus(newStatus);
-	}
-
-	protected void setValidationStatus(final IStatus status) {
-		this.validationStatus = status;
-	}
-
-	public IStatus getValidationStatus() {
-		return this.validationStatus;
-	}
-
-	public boolean isErrorStatus() {
-		return this.validationStatus == null || this.validationStatus.getSeverity() >= IStatus.ERROR;
-	}
-
-	public void setAvailableETypedElements(final Collection<? extends ETypedElement> newAvailable) {
-		this.available = newAvailable;
-		final Set<EObject> containers = new HashSet<EObject>();
-		for (final ETypedElement eTypedElement : newAvailable) {
-			final EObject container = getTopmostContainer(eTypedElement);
-			if (container != null && containsETypedElement(container)) {
-				containers.add(container);
-			}
-		}
-		for (EObject eObject : this.knownEPackage) {
-			if (containsETypedElement(eObject)) {
-				containers.add(eObject);
-			}
-		}
-		setInput(containers);
-	}
-
-	protected static EObject getTopmostContainer(final EObject eObject) {
-		EObject container = eObject.eContainer();
-		EObject result = container;
-		while (container != null) {
-			result = container;
-			container = container.eContainer();
-		}
-		return result;
-	}
-
-	public List<ETypedElement> getSelectedETypedElements() {
-		final List<ETypedElement> currentlySelected = new ArrayList<ETypedElement>();
-		if (this.filteredTree.isDisposed()) {
-			throw new IllegalStateException("Cannot get the selection since the viewer is disposed."); //$NON-NLS-1$
-		}
-		final IStructuredSelection selection = (IStructuredSelection) this.filteredTree.getViewer()
-				.getSelection();
-		final Iterator<?> iterator = selection.iterator();
-		while (iterator.hasNext()) {
-			final Object element = iterator.next();
-			if (element instanceof ETypedElement) {
-				final ETypedElement eTypedElement = (ETypedElement) element;
-				currentlySelected.add(eTypedElement);
-			}
-		}
-		return currentlySelected;
-	}
-
-	public void setSelectedETypedElements(final Collection<? extends ETypedElement> newSelection) {
-		if (newSelection == null) {
-			throw new IllegalArgumentException();
-		}
-		final List<ETypedElement> filteredSelection = new ArrayList<ETypedElement>();
-		filteredSelection.addAll(newSelection);
-		// only keep available elements
-		filteredSelection.retainAll(this.available);
-		setSelection(new StructuredSelection(filteredSelection));
-	}
-
-	public void setSelection(final IStructuredSelection selection) {
-		setETypedElementSelectionEnabled(!selection.isEmpty());
-		this.filteredTree.getViewer().setSelection(selection);
-		updateValidationStatus();
-	}
-
-	protected void setETypedElementSelectionEnabled(final boolean enabled) {
-		getRadioButtonNoSelection().setSelection(!enabled);
-		getRadioButtonSelection().setSelection(enabled);
-		this.filteredTree.getViewer().getTree().setEnabled(enabled);
-		this.filteredTree.getFilterControl().setEnabled(enabled);
-	}
-
-	public void setInput(final Collection<? extends EObject> containers) {
-		this.filteredTree.getViewer().setInput(containers);
-	}
-
-	// @SuppressWarnings("unchecked") : this is the input type
-	@SuppressWarnings("unchecked")
-	public Collection<? extends EObject> getInput() {
-		return (Collection<? extends EObject>) this.filteredTree.getViewer().getInput();
-	}
-
-	protected IContentProvider createContentProvider() {
-		return new ETypedElementSelectionControlContentProvider(new IFilter<EObject>() {
-			public boolean filter(final EObject eObject) {
-				return filterChild(eObject);
-			}
-		});
-	}
-
-	protected boolean filterChild(final EObject eObject) {
-		boolean selected;
-		if (containsETypedElement(eObject)) {
-			selected = true;
-		} else if (eObject instanceof ETypedElement) {
-			selected = isAvailable(eObject);
-		} else {
-			selected = false;
-		}
-		return selected;
-	}
-
-	protected boolean isAvailable(final EObject eObject) {
-		return this.available.contains(eObject);
-	}
-
-	protected boolean containsETypedElement(final EObject eObject) {
-		boolean result = false;
-		final TreeIterator<EObject> eAllContents = eObject.eAllContents();
-		while (eAllContents.hasNext()) {
-			final EObject element = eAllContents.next();
-			if (element instanceof ETypedElement) {
-				final ETypedElement typedElement = (ETypedElement) element;
-				if (isAvailable(typedElement)) {
-					result = true;
-					break;
-				}
-			} else {
-				result = containsETypedElement(element);
-				if (result) {
-					break;
-				}
-			}
-		}
-		return result;
-	}
-
-	private static int selectionStyle(final int selectionMaxSize) {
-		int selectionStyle;
-		if (selectionMaxSize > 1) {
-			selectionStyle = SWT.MULTI;
-		} else {
-			selectionStyle = SWT.SINGLE;
-		}
-		return selectionStyle;
-	}
-
-	private static PatternFilter createPatternFilter() {
-		return new PatternFilter() {
-			@Override
-			protected boolean isLeafMatch(final Viewer viewer, final Object element) {
-				final String labelText = ((ILabelProvider) ((StructuredViewer) viewer).getLabelProvider())
-						.getText(element);
-
-				if (labelText == null) {
-					return false;
-				}
-				return wordMatches(labelText) || parentMatches(viewer, element);
-			}
-
-			private boolean parentMatches(final Viewer viewer, final Object element) {
-				final ITreeContentProvider contentProvider = (ITreeContentProvider) ((StructuredViewer) viewer)
-						.getContentProvider();
-				final Object parent = contentProvider.getParent(element);
-				if (parent == null) {
-					return false;
-				}
-				return isLeafMatch(viewer, parent);
-			}
-		};
-	}
-
-	public IStructuredSelection getSelection() {
-		return (IStructuredSelection) this.filteredTree.getViewer().getSelection();
-	}
-
-	protected Button getRadioButtonNoSelection() {
-		return this.rbNoSelection;
-	}
-
-	protected Button getRadioButtonSelection() {
-		return this.rbSelection;
-	}
-
-	public FilteredTree getFilteredTree() {
-		return this.filteredTree;
-	}
-
-	public boolean isDisposed() {
-		return this.filteredTree.isDisposed();
-	}
-
-	public String getTitle() {
-		return ETypedElementSelectionControl.TITLE;
-	}
-
-	public String getToolTipText() {
-		return getTitle();
-	}
-
-	public Image getImage() {
-		return ImageProvider.getInstance().getFlatViewIcon();
-	}
-
-	public String getTabId() {
-		return ETypedElementSelectionControl.TAB_ID;
-	}
-
-	public Collection<? extends EObject> getKnownEPackage() {
-		return this.knownEPackage;
-	}
-}
+/*******************************************************************************
+ * Copyright (c) 2010, 2012 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) - Bug 370806 - [table] rewrite the "allowed contents" query selection dialog for v0.2
+ *     Vincent Lorenzo (CEA-LIST) - Bug 372644 - Create Customizable tooltips for the TreeViewer using a CustomizableLabelProvider
+ *     Gregoire Dupe (Mia-Software) - Bug 372644 - Create Customizable tooltips for the TreeViewer using a CustomizableLabelProvider
+ *     Gregoire Dupe (Mia-Software) - Bug 373078 - API Cleaning
+ *     Vincent Lorenzo (CEA-LIST) - Bug 357621 - Improve the label displayed for Customization and Facets
+ *     Gregoire Dupe (Mia-Software) - Bug 372626 - Aggregates
+ *     Olivier Remaud (Soft-Maint) - Bug 377615 - Query View filtering
+ *     Vincent Lorenzo (CEA-LIST) - Bug 357621 - Improve the label displayed for Customization and Facets
+ *     Vincent Lorenzo (CEA-LIST) - Bug 377909 - The elements displayed in the ETypedElement dialog are not sorted by alphabetic order
+ *******************************************************************************/
+package org.eclipse.papyrus.emf.facet.efacet.ui.internal.widget;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Set;
+
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.emf.common.util.TreeIterator;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.ETypedElement;
+import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
+import org.eclipse.jface.viewers.ColumnViewerToolTipSupport;
+import org.eclipse.jface.viewers.IBaseLabelProvider;
+import org.eclipse.jface.viewers.IContentProvider;
+import org.eclipse.jface.viewers.ILabelProvider;
+import org.eclipse.jface.viewers.IOpenListener;
+import org.eclipse.jface.viewers.ISelectionChangedListener;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.OpenEvent;
+import org.eclipse.jface.viewers.SelectionChangedEvent;
+import org.eclipse.jface.viewers.StructuredSelection;
+import org.eclipse.jface.viewers.StructuredViewer;
+import org.eclipse.jface.viewers.Viewer;
+import org.eclipse.jface.viewers.ViewerComparator;
+import org.eclipse.jface.viewers.ViewerFilter;
+import org.eclipse.osgi.util.NLS;
+import org.eclipse.papyrus.emf.facet.custom.core.ICustomizationManager;
+import org.eclipse.papyrus.emf.facet.custom.core.ICustomizationManagerFactory;
+import org.eclipse.papyrus.emf.facet.custom.ui.ICustomizedLabelProviderFactory;
+import org.eclipse.papyrus.emf.facet.efacet.ui.internal.Activator;
+import org.eclipse.papyrus.emf.facet.efacet.ui.internal.Messages;
+import org.eclipse.papyrus.emf.facet.efacet.ui.internal.utils.ImageProvider;
+import org.eclipse.papyrus.emf.facet.util.core.internal.exported.IFilter;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.ui.dialogs.FilteredTree;
+import org.eclipse.ui.dialogs.PatternFilter;
+
+/**
+ * A control that displays a tree of ETypedElements under a list of containers (EPackages for example), with a filter
+ * text field.
+ */
+public class ETypedElementSelectionControl implements IETypedElementTabSelectionWidgetInternal {
+
+	public static final String TAB_ID = "flat.view.id"; //$NON-NLS-1$
+
+	public static final String TITLE = Messages.ETypedElementSelectionControl_FlatView;
+
+	/** An OK status, but without the "OK" message, because we don't want "OK" to appear in the status bar */
+	private static final IStatus OK_STATUS = new Status(IStatus.OK, Activator.PLUGIN_ID, ""); //$NON-NLS-1$
+
+	private FilteredTree filteredTree;
+	protected Collection<? extends ETypedElement> available;
+	private final int selectionMaxSize;
+	private final boolean allowEmpty;
+	private Button rbNoSelection;
+	private Button rbSelection;
+	private IStatus validationStatus;
+	private final IBaseLabelProvider labelProvider;
+	private final Composite cParent;
+	private final Collection<? extends EObject> knownEPackage;
+
+	/** Create a tree with a filter text field to select ETypedElements. */
+	public ETypedElementSelectionControl(final Composite parentComposite,
+			final int selectionMaxSize, final boolean allowEmpty,
+			final ICustomizationManager customManager,
+			final Collection<? extends EObject> knownEPackage) {
+		this.cParent = parentComposite;
+		this.knownEPackage = knownEPackage;
+		this.selectionMaxSize = selectionMaxSize;
+		this.allowEmpty = allowEmpty;
+		ICustomizationManager tempCustomManager;
+		if (customManager == null) {
+			tempCustomManager = ICustomizationManagerFactory.DEFAULT.getOrCreateICustomizationManager(new ResourceSetImpl());
+		} else {
+			tempCustomManager = customManager;
+		}
+		this.labelProvider = ICustomizedLabelProviderFactory.DEFAULT
+				.createCustomizedLabelProvider(tempCustomManager);
+	}
+
+	public void createContents() {
+		final Composite composite = new Composite(this.cParent, SWT.NONE);
+		composite.setLayout(new GridLayout());
+		composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+
+		if (this.allowEmpty) {
+			this.rbNoSelection = new Button(composite, SWT.RADIO);
+			this.rbNoSelection.setText(Messages.ETypedElementSelectionDialog_radioButtonNoSelection);
+			this.rbNoSelection.setSelection(true);
+			this.rbNoSelection.addSelectionListener(new SelectionAdapter() {
+				@Override
+				public void widgetSelected(final SelectionEvent event) {
+					final boolean selected = getRadioButtonNoSelection().getSelection();
+					setETypedElementSelectionEnabled(!selected);
+					if (selected) {
+						setSelection(StructuredSelection.EMPTY);
+					}
+				}
+			});
+			this.rbSelection = new Button(composite, SWT.RADIO);
+			if (this.selectionMaxSize > 1) {
+				this.rbSelection.setText(Messages.ETypedElementSelectionDialog_radioButtonMultiSelection);
+			} else {
+				this.rbSelection.setText(Messages.ETypedElementSelectionDialog_radioButtonSingleSelection);
+			}
+			this.rbSelection.setSelection(false);
+			this.rbSelection.addSelectionListener(new SelectionAdapter() {
+				@Override
+				public void widgetSelected(final SelectionEvent event) {
+					final boolean selected = getRadioButtonSelection().getSelection();
+					setETypedElementSelectionEnabled(selected);
+					if (!selected) {
+						setSelection(StructuredSelection.EMPTY);
+					}
+				}
+			});
+		}
+
+		createFilteredTree(composite);
+
+		this.filteredTree.getViewer().addSelectionChangedListener(new ISelectionChangedListener() {
+			public void selectionChanged(final SelectionChangedEvent event) {
+				updateValidationStatus();
+			}
+		});
+
+		if (this.allowEmpty) {
+			setETypedElementSelectionEnabled(false);
+		}
+
+		updateValidationStatus();
+	}
+
+	public void addOpenListener(final IOpenListener openListener) {
+		// double-click or enter to choose the selected typed element
+		this.filteredTree.getViewer().addOpenListener(new IOpenListener() {
+			public void open(final OpenEvent event) {
+				// only if the selection is valid
+				if (!isErrorStatus()) {
+					openListener.open(event);
+				}
+			}
+		});
+	}
+
+	public void addSelectionChangedListener(final ISelectionChangedListener listener) {
+		this.filteredTree.getViewer().addSelectionChangedListener(listener);
+	}
+
+	private void createFilteredTree(final Composite parentComposite) {
+		this.filteredTree = new FilteredTree(parentComposite, selectionStyle(this.selectionMaxSize) | SWT.H_SCROLL | SWT.V_SCROLL
+				| SWT.BORDER, createPatternFilter(), true);
+		// allow tooltip for this viewer
+		ColumnViewerToolTipSupport.enableFor(this.filteredTree.getViewer());
+		this.filteredTree.getViewer().setContentProvider(createContentProvider());
+		this.filteredTree.getViewer().setLabelProvider(this.labelProvider);
+		this.filteredTree.getViewer().setFilters(new ViewerFilter[] { this.filteredTree.getPatternFilter() });
+		this.filteredTree.getViewer().setComparator(new ViewerComparator());
+	}
+
+	protected void updateValidationStatus() {
+		if (this.filteredTree == null) {
+			return;
+		}
+
+		final Status errorElements = new Status(IStatus.ERROR, Activator.PLUGIN_ID,
+				Messages.ETypedElementSelectionControl_invalidSelectionETypedElementsOnly);
+		final Status errorSelection = new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.ETypedElementSelectionControl_invalidSelection);
+
+		final IStructuredSelection selection = (IStructuredSelection) this.filteredTree.getViewer().getSelection();
+		IStatus newStatus = ETypedElementSelectionControl.OK_STATUS;
+		if (!this.allowEmpty && selection.isEmpty()) {
+			newStatus = new Status(IStatus.ERROR, Activator.PLUGIN_ID, NLS.bind(Messages.ETypedElementSelectionControl_invalidSelectionAtLeastOneElement,
+					Integer.valueOf(this.selectionMaxSize)));
+		} else if (selection.size() > this.selectionMaxSize) {
+			newStatus = new Status(IStatus.ERROR, Activator.PLUGIN_ID, NLS.bind(Messages.ETypedElementSelectionControl_invalidSelectionAtMostXElements,
+					Integer.valueOf(this.selectionMaxSize)));
+		} else {
+			final Iterator<?> iterator = selection.iterator();
+			while (iterator.hasNext()) {
+				final Object selectedElement = iterator.next();
+				if (!(selectedElement instanceof ETypedElement)) {
+					newStatus = errorElements;
+					break;
+				}
+			}
+		}
+		setValidationStatus(newStatus);
+	}
+
+	protected void setValidationStatus(final IStatus status) {
+		this.validationStatus = status;
+	}
+
+	public IStatus getValidationStatus() {
+		return this.validationStatus;
+	}
+
+	public boolean isErrorStatus() {
+		return this.validationStatus == null || this.validationStatus.getSeverity() >= IStatus.ERROR;
+	}
+
+	public void setAvailableETypedElements(final Collection<? extends ETypedElement> newAvailable) {
+		this.available = newAvailable;
+		final Set<EObject> containers = new HashSet<EObject>();
+		for (final ETypedElement eTypedElement : newAvailable) {
+			final EObject container = getTopmostContainer(eTypedElement);
+			if (container != null && containsETypedElement(container)) {
+				containers.add(container);
+			}
+		}
+		for (EObject eObject : this.knownEPackage) {
+			if (containsETypedElement(eObject)) {
+				containers.add(eObject);
+			}
+		}
+		setInput(containers);
+	}
+
+	protected static EObject getTopmostContainer(final EObject eObject) {
+		EObject container = eObject.eContainer();
+		EObject result = container;
+		while (container != null) {
+			result = container;
+			container = container.eContainer();
+		}
+		return result;
+	}
+
+	public List<ETypedElement> getSelectedETypedElements() {
+		final List<ETypedElement> currentlySelected = new ArrayList<ETypedElement>();
+		if (this.filteredTree.isDisposed()) {
+			throw new IllegalStateException("Cannot get the selection since the viewer is disposed."); //$NON-NLS-1$
+		}
+		final IStructuredSelection selection = (IStructuredSelection) this.filteredTree.getViewer()
+				.getSelection();
+		final Iterator<?> iterator = selection.iterator();
+		while (iterator.hasNext()) {
+			final Object element = iterator.next();
+			if (element instanceof ETypedElement) {
+				final ETypedElement eTypedElement = (ETypedElement) element;
+				currentlySelected.add(eTypedElement);
+			}
+		}
+		return currentlySelected;
+	}
+
+	public void setSelectedETypedElements(final Collection<? extends ETypedElement> newSelection) {
+		if (newSelection == null) {
+			throw new IllegalArgumentException();
+		}
+		final List<ETypedElement> filteredSelection = new ArrayList<ETypedElement>();
+		filteredSelection.addAll(newSelection);
+		// only keep available elements
+		filteredSelection.retainAll(this.available);
+		setSelection(new StructuredSelection(filteredSelection));
+	}
+
+	public void setSelection(final IStructuredSelection selection) {
+		setETypedElementSelectionEnabled(!selection.isEmpty());
+		this.filteredTree.getViewer().setSelection(selection);
+		updateValidationStatus();
+	}
+
+	protected void setETypedElementSelectionEnabled(final boolean enabled) {
+		getRadioButtonNoSelection().setSelection(!enabled);
+		getRadioButtonSelection().setSelection(enabled);
+		this.filteredTree.getViewer().getTree().setEnabled(enabled);
+		this.filteredTree.getFilterControl().setEnabled(enabled);
+	}
+
+	public void setInput(final Collection<? extends EObject> containers) {
+		this.filteredTree.getViewer().setInput(containers);
+	}
+
+	// @SuppressWarnings("unchecked") : this is the input type
+	@SuppressWarnings("unchecked")
+	public Collection<? extends EObject> getInput() {
+		return (Collection<? extends EObject>) this.filteredTree.getViewer().getInput();
+	}
+
+	protected IContentProvider createContentProvider() {
+		return new ETypedElementSelectionControlContentProvider(new IFilter<EObject>() {
+			public boolean filter(final EObject eObject) {
+				return filterChild(eObject);
+			}
+		});
+	}
+
+	protected boolean filterChild(final EObject eObject) {
+		boolean selected;
+		if (containsETypedElement(eObject)) {
+			selected = true;
+		} else if (eObject instanceof ETypedElement) {
+			selected = isAvailable(eObject);
+		} else {
+			selected = false;
+		}
+		return selected;
+	}
+
+	protected boolean isAvailable(final EObject eObject) {
+		return this.available.contains(eObject);
+	}
+
+	protected boolean containsETypedElement(final EObject eObject) {
+		boolean result = false;
+		final TreeIterator<EObject> eAllContents = eObject.eAllContents();
+		while (eAllContents.hasNext()) {
+			final EObject element = eAllContents.next();
+			if (element instanceof ETypedElement) {
+				final ETypedElement typedElement = (ETypedElement) element;
+				if (isAvailable(typedElement)) {
+					result = true;
+					break;
+				}
+			} else {
+				result = containsETypedElement(element);
+				if (result) {
+					break;
+				}
+			}
+		}
+		return result;
+	}
+
+	private static int selectionStyle(final int selectionMaxSize) {
+		int selectionStyle;
+		if (selectionMaxSize > 1) {
+			selectionStyle = SWT.MULTI;
+		} else {
+			selectionStyle = SWT.SINGLE;
+		}
+		return selectionStyle;
+	}
+
+	private static PatternFilter createPatternFilter() {
+		return new PatternFilter() {
+			@Override
+			protected boolean isLeafMatch(final Viewer viewer, final Object element) {
+				final String labelText = ((ILabelProvider) ((StructuredViewer) viewer).getLabelProvider())
+						.getText(element);
+
+				if (labelText == null) {
+					return false;
+				}
+				return wordMatches(labelText) || parentMatches(viewer, element);
+			}
+
+			private boolean parentMatches(final Viewer viewer, final Object element) {
+				final ITreeContentProvider contentProvider = (ITreeContentProvider) ((StructuredViewer) viewer)
+						.getContentProvider();
+				final Object parent = contentProvider.getParent(element);
+				if (parent == null) {
+					return false;
+				}
+				return isLeafMatch(viewer, parent);
+			}
+		};
+	}
+
+	public IStructuredSelection getSelection() {
+		return (IStructuredSelection) this.filteredTree.getViewer().getSelection();
+	}
+
+	protected Button getRadioButtonNoSelection() {
+		return this.rbNoSelection;
+	}
+
+	protected Button getRadioButtonSelection() {
+		return this.rbSelection;
+	}
+
+	public FilteredTree getFilteredTree() {
+		return this.filteredTree;
+	}
+
+	public boolean isDisposed() {
+		return this.filteredTree.isDisposed();
+	}
+
+	public String getTitle() {
+		return ETypedElementSelectionControl.TITLE;
+	}
+
+	public String getToolTipText() {
+		return getTitle();
+	}
+
+	public Image getImage() {
+		return ImageProvider.getInstance().getFlatViewIcon();
+	}
+
+	public String getTabId() {
+		return ETypedElementSelectionControl.TAB_ID;
+	}
+
+	public Collection<? extends EObject> getKnownEPackage() {
+		return this.knownEPackage;
+	}
+}