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/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
* 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:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.infra.widgets.editors;
import org.eclipse.swt.widgets.Composite;
/**
* An interface for defining widgets that can return
* some values.
*
* @author Camille Letavernier
*
*/
public interface IElementSelector {
/**
*
* @return The currently selected elements
*/
public Object[] getSelectedElements();
/**
* Sets the elements that have already been chosen.
*
* @param elements
*/
public void setSelectedElements(Object[] elements);
/**
*
* @return all displayed elements. If the widget uses a filter,
* only the filtered elements should be returned
*/
public Object[] getAllElements();
/**
* Creates the widgets to display this selector
*
* @param parent
*/
public void createControls(Composite parent);
/**
* Handles the "newObjectCreated" event
*
* @param newObject
* The object that has been created
*/
public void newObjectCreated(Object newObject);
/**
* Clears this selector. Removes all temporary elements that
* may have been created.
*/
public void clearTemporaryElements();
/**
* Adds a new listener to this selector.
* The selector can inform the listener that new elements have
* been selected
*
* @param listener
*/
public void addElementSelectionListener(IElementSelectionListener listener);
/**
* Removes the element selection listener
*
* @param listener
*
* @see {@link #addElementSelectionListener(IElementSelectionListener)}
*/
public void removeElementSelectionListener(IElementSelectionListener listener);
}
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