core/org.eclipse.ptp.services.ui/src/org/eclipse/ptp/services/ui/widgets/ServiceConfigurationSelectionWidget.java - ptp/org.eclipse.ptp - Git at Google

 /*******************************************************************************
  * Copyright (c) 2009 IBM Corporation and others.
  * 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:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 /**
  *
  */
 package org.eclipse.ptp.services.ui.widgets;

 import java.util.HashSet;
 import java.util.Set;

 import org.eclipse.core.runtime.ListenerList;
 import org.eclipse.jface.dialogs.InputDialog;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.ISelectionProvider;
 import org.eclipse.jface.viewers.ITreeSelection;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.TreePath;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.viewers.ViewerComparator;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.ptp.services.core.IService;
 import org.eclipse.ptp.services.core.IServiceConfiguration;
 import org.eclipse.ptp.services.core.IServiceModelManager;
 import org.eclipse.ptp.services.core.ServiceModelManager;
 import org.eclipse.ptp.services.ui.messages.Messages;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 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.swt.widgets.Label;
 import org.eclipse.ui.model.WorkbenchContentProvider;
 import org.eclipse.ui.model.WorkbenchLabelProvider;

 /**
  * Standard widget for selecting a service configuration.
  *
  * Displays a tree view of service configurations so that the user can easily
  * see what services and providers are available in the configuration.
  *
  */
 public class ServiceConfigurationSelectionWidget extends Composite implements ISelectionProvider {
 	/**
 	 * Comparator class used to sort service configurations in ascending order
 	 * by name
 	 *
 	 */
 	private class ServiceConfigurationComparator extends ViewerComparator {
 		/* (non-Javadoc)
 		 * @see org.eclipse.jface.viewers.ViewerComparator#compare(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
 		 */
 		public int compare(Viewer viewer, Object o1, Object o2) {
 			if (o1 instanceof IServiceConfiguration && o2 instanceof IServiceConfiguration) {
 				return ((IServiceConfiguration)o1).getName().compareToIgnoreCase(((IServiceConfiguration)o2).getName());
 			}

 			return super.compare(viewer, o1, o2);
 		}
 	}

 	private class ServiceContentProvider extends WorkbenchContentProvider {

 		/* (non-Javadoc)
 		 * @see org.eclipse.ui.model.BaseWorkbenchContentProvider#getChildren(java.lang.Object)
 		 */
 		@Override
 		public Object[] getChildren(Object element) {
 			if (element instanceof IServiceConfiguration) {
 				IServiceConfiguration config = (IServiceConfiguration)element;
 				Set<Object> children = new HashSet<Object>();
 				for (IService service : config.getServices()) {
 					children.add(config.getServiceProvider(service));
 				}
 				for (IService service : fManager.getServices()) {
 					if (config.isDisabled(service)) {
 						children.add(service);
 					}
 				}
 				return children.toArray();
 			}
 			if (element instanceof IServiceModelManager && fExcludedConfigs != null) {
 				Set<IServiceConfiguration> children = ((IServiceModelManager)element).getConfigurations();
 				children.removeAll(fExcludedConfigs);
 				return children.toArray();
 			}
 			return super.getChildren(element);
 		}
 	}

 	private TreeViewer fViewer;
 	private Button fAddButton;
 	private Button fRemoveButton;
 	private Button fRenameButton;

 	private ISelection fSelection;
 	private boolean fEnabled = true;
 	private Set<IServiceConfiguration> fExcludedConfigs;
 	private boolean fButtonsVisible = true;

 	private final ListenerList fSelectionListeners = new ListenerList();
 	private final IServiceModelManager fManager = ServiceModelManager.getInstance();

 	private IServiceConfiguration fSelectedConfig = null;

 	public ServiceConfigurationSelectionWidget(Composite parent, int style) {
 		this (parent, style, null, true);
 	}

 	public ServiceConfigurationSelectionWidget(Composite parent, int style,
 			Set<IServiceConfiguration> excluded, boolean buttons) {
 		super(parent, style);
 		setLayout(new GridLayout(2, false));

 		Composite labelComp = new Composite(this, SWT.NONE);
 		labelComp.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));
 		labelComp.setLayout(new GridLayout(1, false));
 		Label label = new Label(labelComp, SWT.NONE);
 		label.setText(Messages.ServiceConfigurationSelectionWidget_0);

 		Composite treeComp = new Composite(this, SWT.NONE);
 		treeComp.setLayout(new GridLayout(1, false));
 		treeComp.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));

 		fViewer = new TreeViewer(treeComp, SWT.MULTI | SWT.BORDER | SWT.FULL_SELECTION | SWT.H_SCROLL | SWT.V_SCROLL);
 		fViewer.setContentProvider(new ServiceContentProvider());
 		fViewer.setLabelProvider(new WorkbenchLabelProvider());
 		fViewer.setComparator(new ServiceConfigurationComparator());
 		fViewer.getTree().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
 		fViewer.getTree().setLinesVisible(true);
 		fViewer.addSelectionChangedListener(new ISelectionChangedListener() {

 			public void selectionChanged(SelectionChangedEvent event) {
 				ISelection selection = fViewer.getSelection();
 				if (!selection.isEmpty()) {
 					ITreeSelection treeSelection = (ITreeSelection)selection;
 					TreePath path = treeSelection.getPaths()[0];
 					fSelectedConfig = (IServiceConfiguration)path.getFirstSegment();
 				} else {
 					fSelectedConfig = null;
 				}
 				updateControls();
 				notifySelection(fViewer.getSelection());
 			}

 		});
 		fViewer.setInput(ServiceModelManager.getInstance());

 		if (buttons) {
 			Composite buttonsComp = new Composite(this, SWT.NONE);
 			buttonsComp.setLayoutData(new GridData(SWT.LEFT, SWT.TOP, false, false, 1, 1));
 			buttonsComp.setLayout(new GridLayout(1, false));

 			fAddButton = new Button(buttonsComp, SWT.PUSH);
 			GridData data = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1);
 			data.widthHint = 110;
 			fAddButton.setLayoutData(data);
 			fAddButton.setText(Messages.ServiceConfigurationSelectionWidget_1);
 			fAddButton.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent evt) {
 					InputDialog dialog = new InputDialog(fAddButton.getShell(), Messages.ServiceConfigurationSelectionWidget_2,
 							Messages.ServiceConfigurationSelectionWidget_3, null, null);
 					if (dialog.open() == InputDialog.OK) {
 						IServiceConfiguration config = fManager.newServiceConfiguration(dialog.getValue());
 						fManager.addConfiguration(config);
 						fViewer.refresh();
 					}
 				}
 			});

 			fRemoveButton = new Button(buttonsComp, SWT.PUSH);
 			fRemoveButton.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));
 			fRemoveButton.setText(Messages.ServiceConfigurationSelectionWidget_4);
 			fRemoveButton.setEnabled(false);
 			fRemoveButton.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent evt) {
 					ITreeSelection selection = (ITreeSelection)fViewer.getSelection();
 					if (!selection.isEmpty()) {
 						Object[] configs = (Object[])selection.toArray();
 						String names = ""; //$NON-NLS-1$
 						for (int i = 0; i < configs.length; i++) {
 							if (i > 0) {
 								names += ", "; //$NON-NLS-1$
 							}
 							names += "\"" + ((IServiceConfiguration)configs[i]).getName() + "\""; //$NON-NLS-1$ //$NON-NLS-2$
 						}
 						boolean doRemove = MessageDialog.openConfirm(fRemoveButton.getShell(), Messages.ServiceConfigurationSelectionWidget_9,
 								NLS.bind(Messages.ServiceConfigurationSelectionWidget_10, names));
 						if (doRemove) {
 							for (Object config : configs) {
 								fManager.remove((IServiceConfiguration)config);
 							}
 							fViewer.refresh();
 						}
 					}
 				}
 			});

 			fRenameButton = new Button(buttonsComp, SWT.PUSH);
 			fRenameButton.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));
 			fRenameButton.setText(Messages.ServiceConfigurationSelectionWidget_11);
 			fRenameButton.setEnabled(false);
 			fRenameButton.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent evt) {
 					ITreeSelection selection = (ITreeSelection)fViewer.getSelection();
 					if (!selection.isEmpty()) {
 						InputDialog dialog = new InputDialog(fAddButton.getShell(), Messages.ServiceConfigurationSelectionWidget_12,
 								Messages.ServiceConfigurationSelectionWidget_13, null, null);
 						if (dialog.open() == InputDialog.OK) {
 							IServiceConfiguration config = (IServiceConfiguration)selection.getFirstElement();
 							config.setName(dialog.getValue());
 							fViewer.update(config, null);
 						}
 					}
 				}
 			});
 		}

 		fExcludedConfigs = excluded;
 		fButtonsVisible = buttons;
 	}

 	private void updateControls() {
 		fViewer.getTree().setEnabled(fEnabled);
 		if (fButtonsVisible) {
 			fAddButton.setEnabled(fEnabled);
 			boolean enabled = fEnabled && getSelectedConfiguration() != null;
 			fRemoveButton.setEnabled(enabled);
 			fRenameButton.setEnabled(enabled);
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.swt.widgets.Control#getEnabled()
 	 */
 	@Override
 	public boolean getEnabled() {
 		return fEnabled;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.swt.widgets.Control#setEnabled(boolean)
 	 */
 	@Override
 	public void setEnabled(boolean enabled) {
 		fEnabled = enabled;
 	}

 	/**
 	 * Adds the listener to the collection of listeners who will
 	 * be notified when the users selects a service configuration
 	 * </p>
 	 * @param listener the listener that will be notified of the selection
 	 */
 	public void addSelectionChangedListener(ISelectionChangedListener listener) {
 		fSelectionListeners.add(listener);
 	}

 	/**
 	 * Return the service configuration selected by the user
 	 *
 	 * @return Selected service configuration
 	 */
 	public IServiceConfiguration getSelectedConfiguration() {
 		return fSelectedConfig;
 	}

 	/**
 	 * Removes the listener from the collection of listeners who will
 	 * be notified when a service configuration is selected by the user.
 	 *
 	 * @param listener the listener which will no longer be notified
 	 */
 	public void removeSelectionChangedListener(ISelectionChangedListener listener) {
 		fSelectionListeners.remove(listener);
 	}

 	/**
 	 * Notify all listeners of the selection.
 	 *
 	 * @param e event that was generated by the selection
 	 */
 	private void notifySelection(ISelection selection) {
 		setSelection(selection);
 		SelectionChangedEvent event = new SelectionChangedEvent(this, getSelection());
 		for (Object listener : fSelectionListeners.getListeners()) {
 			((ISelectionChangedListener) listener).selectionChanged(event);
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.viewers.ISelectionProvider#getSelection()
 	 */
 	public ISelection getSelection() {
 		return fSelection;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.viewers.ISelectionProvider#setSelection(org.eclipse.jface.viewers.ISelection)
 	 */
 	public void setSelection(ISelection selection) {
 		fSelection = selection;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2009 IBM Corporation and others.
	* 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:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	/**
	*
	*/
	package org.eclipse.ptp.services.ui.widgets;

	import java.util.HashSet;
	import java.util.Set;

	import org.eclipse.core.runtime.ListenerList;
	import org.eclipse.jface.dialogs.InputDialog;
	import org.eclipse.jface.dialogs.MessageDialog;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.ISelectionProvider;
	import org.eclipse.jface.viewers.ITreeSelection;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.TreePath;
	import org.eclipse.jface.viewers.TreeViewer;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.jface.viewers.ViewerComparator;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.ptp.services.core.IService;
	import org.eclipse.ptp.services.core.IServiceConfiguration;
	import org.eclipse.ptp.services.core.IServiceModelManager;
	import org.eclipse.ptp.services.core.ServiceModelManager;
	import org.eclipse.ptp.services.ui.messages.Messages;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	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.swt.widgets.Label;
	import org.eclipse.ui.model.WorkbenchContentProvider;
	import org.eclipse.ui.model.WorkbenchLabelProvider;

	/**
	* Standard widget for selecting a service configuration.
	*
	* Displays a tree view of service configurations so that the user can easily
	* see what services and providers are available in the configuration.
	*
	*/
	public class ServiceConfigurationSelectionWidget extends Composite implements ISelectionProvider {
	/**
	* Comparator class used to sort service configurations in ascending order
	* by name
	*
	*/
	private class ServiceConfigurationComparator extends ViewerComparator {
	/* (non-Javadoc)
	* @see org.eclipse.jface.viewers.ViewerComparator#compare(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
	*/
	public int compare(Viewer viewer, Object o1, Object o2) {
	if (o1 instanceof IServiceConfiguration && o2 instanceof IServiceConfiguration) {
	return ((IServiceConfiguration)o1).getName().compareToIgnoreCase(((IServiceConfiguration)o2).getName());
	}

	return super.compare(viewer, o1, o2);
	}
	}

	private class ServiceContentProvider extends WorkbenchContentProvider {

	/* (non-Javadoc)
	* @see org.eclipse.ui.model.BaseWorkbenchContentProvider#getChildren(java.lang.Object)
	*/
	@Override
	public Object[] getChildren(Object element) {
	if (element instanceof IServiceConfiguration) {
	IServiceConfiguration config = (IServiceConfiguration)element;
	Set<Object> children = new HashSet<Object>();
	for (IService service : config.getServices()) {
	children.add(config.getServiceProvider(service));
	}
	for (IService service : fManager.getServices()) {
	if (config.isDisabled(service)) {
	children.add(service);
	}
	}
	return children.toArray();
	}
	if (element instanceof IServiceModelManager && fExcludedConfigs != null) {
	Set<IServiceConfiguration> children = ((IServiceModelManager)element).getConfigurations();
	children.removeAll(fExcludedConfigs);
	return children.toArray();
	}
	return super.getChildren(element);
	}
	}

	private TreeViewer fViewer;
	private Button fAddButton;
	private Button fRemoveButton;
	private Button fRenameButton;

	private ISelection fSelection;
	private boolean fEnabled = true;
	private Set<IServiceConfiguration> fExcludedConfigs;
	private boolean fButtonsVisible = true;

	private final ListenerList fSelectionListeners = new ListenerList();
	private final IServiceModelManager fManager = ServiceModelManager.getInstance();

	private IServiceConfiguration fSelectedConfig = null;

	public ServiceConfigurationSelectionWidget(Composite parent, int style) {
	this (parent, style, null, true);
	}

	public ServiceConfigurationSelectionWidget(Composite parent, int style,
	Set<IServiceConfiguration> excluded, boolean buttons) {
	super(parent, style);
	setLayout(new GridLayout(2, false));

	Composite labelComp = new Composite(this, SWT.NONE);
	labelComp.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));
	labelComp.setLayout(new GridLayout(1, false));
	Label label = new Label(labelComp, SWT.NONE);
	label.setText(Messages.ServiceConfigurationSelectionWidget_0);

	Composite treeComp = new Composite(this, SWT.NONE);
	treeComp.setLayout(new GridLayout(1, false));
	treeComp.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));

	fViewer = new TreeViewer(treeComp, SWT.MULTI \| SWT.BORDER \| SWT.FULL_SELECTION \| SWT.H_SCROLL \| SWT.V_SCROLL);
	fViewer.setContentProvider(new ServiceContentProvider());
	fViewer.setLabelProvider(new WorkbenchLabelProvider());
	fViewer.setComparator(new ServiceConfigurationComparator());
	fViewer.getTree().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
	fViewer.getTree().setLinesVisible(true);
	fViewer.addSelectionChangedListener(new ISelectionChangedListener() {

	public void selectionChanged(SelectionChangedEvent event) {
	ISelection selection = fViewer.getSelection();
	if (!selection.isEmpty()) {
	ITreeSelection treeSelection = (ITreeSelection)selection;
	TreePath path = treeSelection.getPaths()[0];
	fSelectedConfig = (IServiceConfiguration)path.getFirstSegment();
	} else {
	fSelectedConfig = null;
	}
	updateControls();
	notifySelection(fViewer.getSelection());
	}

	});
	fViewer.setInput(ServiceModelManager.getInstance());

	if (buttons) {
	Composite buttonsComp = new Composite(this, SWT.NONE);
	buttonsComp.setLayoutData(new GridData(SWT.LEFT, SWT.TOP, false, false, 1, 1));
	buttonsComp.setLayout(new GridLayout(1, false));

	fAddButton = new Button(buttonsComp, SWT.PUSH);
	GridData data = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1);
	data.widthHint = 110;
	fAddButton.setLayoutData(data);
	fAddButton.setText(Messages.ServiceConfigurationSelectionWidget_1);
	fAddButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent evt) {
	InputDialog dialog = new InputDialog(fAddButton.getShell(), Messages.ServiceConfigurationSelectionWidget_2,
	Messages.ServiceConfigurationSelectionWidget_3, null, null);
	if (dialog.open() == InputDialog.OK) {
	IServiceConfiguration config = fManager.newServiceConfiguration(dialog.getValue());
	fManager.addConfiguration(config);
	fViewer.refresh();
	}
	}
	});

	fRemoveButton = new Button(buttonsComp, SWT.PUSH);
	fRemoveButton.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));
	fRemoveButton.setText(Messages.ServiceConfigurationSelectionWidget_4);
	fRemoveButton.setEnabled(false);
	fRemoveButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent evt) {
	ITreeSelection selection = (ITreeSelection)fViewer.getSelection();
	if (!selection.isEmpty()) {
	Object[] configs = (Object[])selection.toArray();
	String names = ""; //$NON-NLS-1$
	for (int i = 0; i < configs.length; i++) {
	if (i > 0) {
	names += ", "; //$NON-NLS-1$
	}
	names += "\"" + ((IServiceConfiguration)configs[i]).getName() + "\""; //$NON-NLS-1$ //$NON-NLS-2$
	}
	boolean doRemove = MessageDialog.openConfirm(fRemoveButton.getShell(), Messages.ServiceConfigurationSelectionWidget_9,
	NLS.bind(Messages.ServiceConfigurationSelectionWidget_10, names));
	if (doRemove) {
	for (Object config : configs) {
	fManager.remove((IServiceConfiguration)config);
	}
	fViewer.refresh();
	}
	}
	}
	});

	fRenameButton = new Button(buttonsComp, SWT.PUSH);
	fRenameButton.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));
	fRenameButton.setText(Messages.ServiceConfigurationSelectionWidget_11);
	fRenameButton.setEnabled(false);
	fRenameButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent evt) {
	ITreeSelection selection = (ITreeSelection)fViewer.getSelection();
	if (!selection.isEmpty()) {
	InputDialog dialog = new InputDialog(fAddButton.getShell(), Messages.ServiceConfigurationSelectionWidget_12,
	Messages.ServiceConfigurationSelectionWidget_13, null, null);
	if (dialog.open() == InputDialog.OK) {
	IServiceConfiguration config = (IServiceConfiguration)selection.getFirstElement();
	config.setName(dialog.getValue());
	fViewer.update(config, null);
	}
	}
	}
	});
	}

	fExcludedConfigs = excluded;
	fButtonsVisible = buttons;
	}

	private void updateControls() {
	fViewer.getTree().setEnabled(fEnabled);
	if (fButtonsVisible) {
	fAddButton.setEnabled(fEnabled);
	boolean enabled = fEnabled && getSelectedConfiguration() != null;
	fRemoveButton.setEnabled(enabled);
	fRenameButton.setEnabled(enabled);
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.swt.widgets.Control#getEnabled()
	*/
	@Override
	public boolean getEnabled() {
	return fEnabled;
	}

	/* (non-Javadoc)
	* @see org.eclipse.swt.widgets.Control#setEnabled(boolean)
	*/
	@Override
	public void setEnabled(boolean enabled) {
	fEnabled = enabled;
	}

	/**
	* Adds the listener to the collection of listeners who will
	* be notified when the users selects a service configuration
	* </p>
	* @param listener the listener that will be notified of the selection
	*/
	public void addSelectionChangedListener(ISelectionChangedListener listener) {
	fSelectionListeners.add(listener);
	}

	/**
	* Return the service configuration selected by the user
	*
	* @return Selected service configuration
	*/
	public IServiceConfiguration getSelectedConfiguration() {
	return fSelectedConfig;
	}

	/**
	* Removes the listener from the collection of listeners who will
	* be notified when a service configuration is selected by the user.
	*
	* @param listener the listener which will no longer be notified
	*/
	public void removeSelectionChangedListener(ISelectionChangedListener listener) {
	fSelectionListeners.remove(listener);
	}

	/**
	* Notify all listeners of the selection.
	*
	* @param e event that was generated by the selection
	*/
	private void notifySelection(ISelection selection) {
	setSelection(selection);
	SelectionChangedEvent event = new SelectionChangedEvent(this, getSelection());
	for (Object listener : fSelectionListeners.getListeners()) {
	((ISelectionChangedListener) listener).selectionChanged(event);
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.viewers.ISelectionProvider#getSelection()
	*/
	public ISelection getSelection() {
	return fSelection;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.viewers.ISelectionProvider#setSelection(org.eclipse.jface.viewers.ISelection)
	*/
	public void setSelection(ISelection selection) {
	fSelection = selection;
	}
	}