bundles/org.eclipse.team.ui/src/org/eclipse/team/internal/ui/synchronize/GlobalRefreshResourceSelectionPage.java - gerrit/platform/eclipse.platform.team - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2003 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Common Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/cpl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.team.internal.ui.synchronize;

 import java.util.*;
 import java.util.List;

 import org.eclipse.core.resources.IContainer;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.viewers.*;
 import org.eclipse.jface.wizard.WizardPage;
 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.*;
 import org.eclipse.team.internal.ui.Policy;
 import org.eclipse.team.internal.ui.Utils;
 import org.eclipse.team.ui.synchronize.*;
 import org.eclipse.ui.*;
 import org.eclipse.ui.dialogs.IWorkingSetSelectionDialog;
 import org.eclipse.ui.ide.IDE;
 import org.eclipse.ui.internal.dialogs.ContainerCheckedTreeViewer;
 import org.eclipse.ui.model.BaseWorkbenchContentProvider;
 import org.eclipse.ui.model.WorkbenchLabelProvider;
 import org.eclipse.ui.views.navigator.ResourceSorter;

 /**
  * Page that allows the user to select a set of resources that are managed by a subscriber
  * participant. Callers can provide a scope hint to determine the initial selection for the
  * resource list. By default, the resources in the current selection are checked, otherwise
  * all resources are checked.
  *
  * @see SubscriberRefreshWizard
  * @since 3.0
  */
 public class GlobalRefreshResourceSelectionPage extends WizardPage {

 	private boolean scopeCheckingElement = false;

 	// Set of scope hint to determine the initial selection
 	private Button participantScope;
 	private Button selectedResourcesScope;
 	private Button workingSetScope;
 	private Button selectWorkingSetButton;

 	// The checked tree viewer
 	private ContainerCheckedTreeViewer fViewer;

 	// Working set label and holder
 	private Text workingSetLabel;
 	private IWorkingSet[] workingSets;
 	private List resources;

 	/**
 	 * Content provider that accepts a <code>SubscriberParticipant</code> as input and
 	 * returns the participants root resources.
 	 */
 	class MyContentProvider extends BaseWorkbenchContentProvider {
 		public Object[] getChildren(Object element) {
 			if(element instanceof List) {
 				return (IResource[]) ((List)element).toArray(new IResource[((List)element).size()]);
 			}
 			return super.getChildren(element);
 		}
 	}

 	/**
 	 * Label decorator that will display the full path for participant roots that are folders. This
 	 * is useful for participants that have non-project roots.
 	 */
 	class MyLabelProvider extends LabelProvider {
 		private LabelProvider workbenchProvider = new WorkbenchLabelProvider();
 		public String getText(Object element) {
 			if(element instanceof IContainer) {
 				IContainer c = (IContainer)element;
 				if(c.getType() != IResource.PROJECT && resources.contains(c)) {
 					return c.getFullPath().toString();
 				}
 			}
 			return workbenchProvider.getText(element);
 		}
 		public Image getImage(Object element) {
 			return workbenchProvider.getImage(element);
 		}
 	}

 	/**
 	 * Create a new page for the given participant. The scope hint will determine the initial selection.
 	 *
 	 * @param participant the participant to synchronize
 	 */
 	public GlobalRefreshResourceSelectionPage(IResource[] resources) {
 		super(Policy.bind("GlobalRefreshResourceSelectionPage.1")); //$NON-NLS-1$
 		// Caching the roots so that the decorator doesn't have to recompute all the time.
 		this.resources = Arrays.asList(resources);
 		setDescription(Policy.bind("GlobalRefreshResourceSelectionPage.2")); //$NON-NLS-1$
 		setTitle(Policy.bind("GlobalRefreshResourceSelectionPage.3")); //$NON-NLS-1$
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
 	 */
 	public void createControl(Composite parent2) {
 		Composite top = new Composite(parent2, SWT.NULL);
 		top.setLayout(new GridLayout());

 		GridData data = new GridData(GridData.FILL_BOTH);
 		data.widthHint = 50;
 		top.setLayoutData(data);
 		setControl(top);

 		if (resources.isEmpty()) {
 			Label l = new Label(top, SWT.NULL);
 			l.setText(Policy.bind("GlobalRefreshResourceSelectionPage.4")); //$NON-NLS-1$
 			setPageComplete(false);
 		} else {
 			Label l = new Label(top, SWT.NULL);
 			l.setText(Policy.bind("GlobalRefreshResourceSelectionPage.5")); //$NON-NLS-1$

 			// The viewer
 			fViewer = new ContainerCheckedTreeViewer(top, SWT.BORDER);
 			data = new GridData(GridData.FILL_BOTH);
 			//data.widthHint = 200;
 			data.heightHint = 100;
 			fViewer.getControl().setLayoutData(data);
 			fViewer.setContentProvider(new MyContentProvider());
 			fViewer.setLabelProvider( new DecoratingLabelProvider(
 					new MyLabelProvider(),
 					PlatformUI.getWorkbench().getDecoratorManager().getLabelDecorator()));
 			fViewer.addCheckStateListener(new ICheckStateListener() {
 				public void checkStateChanged(CheckStateChangedEvent event) {
 					updateOKStatus();
 				}
 			});
 			fViewer.setSorter(new ResourceSorter(ResourceSorter.NAME));
 			fViewer.setInput(resources);

 			// Scopes
 			Group scopeGroup = new Group(top, SWT.NULL);
 			scopeGroup.setText(Policy.bind("GlobalRefreshResourceSelectionPage.6")); //$NON-NLS-1$
 			GridLayout layout = new GridLayout();
 			layout.numColumns = 3;
 			layout.makeColumnsEqualWidth = false;
 			scopeGroup.setLayout(layout);
 			data = new GridData(GridData.FILL_HORIZONTAL);
 			data.widthHint = 50;
 			scopeGroup.setLayoutData(data);

 			participantScope = new Button(scopeGroup, SWT.RADIO);
 			participantScope.setText(Policy.bind("GlobalRefreshResourceSelectionPage.7")); //$NON-NLS-1$
 			participantScope.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent e) {
 					updateParticipantScope();
 				}
 			});

 			selectedResourcesScope = new Button(scopeGroup, SWT.RADIO);
 			selectedResourcesScope.setText(Policy.bind("GlobalRefreshResourceSelectionPage.8")); //$NON-NLS-1$
 			selectedResourcesScope.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent e) {
 					updateSelectedResourcesScope();
 				}
 			});
 			data = new GridData();
 			data.horizontalSpan = 2;
 			selectedResourcesScope.setLayoutData(data);


 			workingSetScope = new Button(scopeGroup, SWT.RADIO);
 			workingSetScope.setText(Policy.bind("GlobalRefreshResourceSelectionPage.10")); //$NON-NLS-1$
 			workingSetScope.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent e) {
 					if(workingSetScope.getSelection()) {
 						updateWorkingSetScope();
 					}
 				}
 			});

 			workingSetLabel = new Text(scopeGroup, SWT.BORDER);
 			workingSetLabel.setEditable(false);
 			data = new GridData(GridData.FILL_HORIZONTAL);
 			workingSetLabel.setLayoutData(data);

 			Button selectWorkingSetButton = new Button(scopeGroup, SWT.NULL);
 			selectWorkingSetButton.setText(Policy.bind("GlobalRefreshResourceSelectionPage.11")); //$NON-NLS-1$
 			selectWorkingSetButton.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent e) {
 					selectWorkingSetAction();
 				}
 			});
 			data = new GridData(GridData.HORIZONTAL_ALIGN_END);
 			selectWorkingSetButton.setLayoutData(data);
 			Dialog.applyDialogFont(selectWorkingSetButton);

 			Composite selectGroup = new Composite(top, SWT.SHADOW_NONE);
 			layout = new GridLayout();
 			layout.numColumns = 2;
 			layout.marginHeight = 0;
 			layout.marginWidth = 0;
 			layout.makeColumnsEqualWidth = false;
 			selectGroup.setLayout(layout);
 			data = new GridData(GridData.FILL_HORIZONTAL);
 			selectGroup.setLayoutData(data);

 			Button selectAll = new Button(selectGroup, SWT.NULL);
 			selectAll.setText(Policy.bind("GlobalRefreshResourceSelectionPage.12")); //$NON-NLS-1$
 			selectAll.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent e) {
 					participantScope.setSelection(true);
 					selectedResourcesScope.setSelection(false);
 					workingSetScope.setSelection(false);
 					updateParticipantScope();
 					scopeCheckingElement = true;
 					updateOKStatus();
 					scopeCheckingElement = false;
 				}
 			});
 			selectAll.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING));

 			Button deSelectAll = new Button(selectGroup, SWT.NULL);
 			deSelectAll.setText(Policy.bind("GlobalRefreshResourceSelectionPage.13")); //$NON-NLS-1$
 			deSelectAll.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent e) {
 					fViewer.setCheckedElements(new Object[0]);
 					updateOKStatus();
 				}
 			});
 			deSelectAll.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING));

 			//workingSet = participant.getWorkingSet();
 			//updateWorkingSetLabel();
 			initializeScopingHint();
 		}
 		Dialog.applyDialogFont(top);
 	}

 	/**
 	 * Allow the finish button to be pressed if there are checked resources.
 	 *
 	 */
 	protected void updateOKStatus() {
 		if(fViewer != null) {
 			if(! scopeCheckingElement) {
 				if(! selectedResourcesScope.getSelection()) {
 					selectedResourcesScope.setSelection(true);
 					participantScope.setSelection(false);
 					workingSetScope.setSelection(false);
 					updateSelectedResourcesScope();
 				}
 			}
 			setPageComplete(areAnyElementsChecked() != null);
 		} else {
 			setPageComplete(false);
 		}
 	}

 	/**
 	 * Returns <code>true</code> if any of the root resources are grayed.
 	 */
 	private IResource areAnyElementsChecked() {
 		TreeItem[] item = fViewer.getTree().getItems();
 		List checked = new ArrayList();
 		for (int i = 0; i < item.length; i++) {
 			TreeItem child = item[i];
 			if(child.getChecked() || child.getGrayed()) {
 				return (IResource)child.getData();
 			}
 		}
 		return null;
 	}

 	/**
 	 * Return the list of top-most resources that have been checked.
 	 *
 	 * @return  the list of top-most resources that have been checked or an
 	 * empty list if nothing is selected.
 	 */
 	public IResource[] getRootResources() {
 		TreeItem[] item = fViewer.getTree().getItems();
 		List checked = new ArrayList();
 		for (int i = 0; i < item.length; i++) {
 			TreeItem child = item[i];
 			collectCheckedItems(child, checked);
 		}
 		return (IResource[]) checked.toArray(new IResource[checked.size()]);
 	}

 	public ISynchronizeScope getSynchronizeScope() {
 		if (workingSetScope.getSelection()) {
 			return new WorkingSetScope(workingSets);
 		}
 		if (participantScope.getSelection()) {
 			return new WorkspaceScope();
 		}
 		return new ResourceScope(getRootResources());
 	}

 	private void initializeScopingHint() {
 		participantScope.setSelection(true);
 		updateParticipantScope();
 	}

 	private void intializeSelectionInViewer(IResource[] resources) {
 	}

 	private void updateParticipantScope() {
 		if(participantScope.getSelection()) {
 			scopeCheckingElement = true;
 			fViewer.setCheckedElements(resources.toArray());
 			scopeCheckingElement = false;
 		}
 	}

 	private void updateSelectedResourcesScope() {
 		setPageComplete(getRootResources().length > 0);
 	}

 	private void selectWorkingSetAction() {
 		IWorkingSetManager manager = PlatformUI.getWorkbench().getWorkingSetManager();
 		IWorkingSetSelectionDialog dialog = manager.createWorkingSetSelectionDialog(getShell(), true);
 		dialog.open();
 		IWorkingSet[] sets = dialog.getSelection();
 		if(sets != null) {
 			workingSets = sets;
 		} else {
 			// dialog cancelled
 			return;
 		}
 		updateWorkingSetScope();
 		updateWorkingSetLabel();

 		participantScope.setSelection(false);
 		selectedResourcesScope.setSelection(false);
 		workingSetScope.setSelection(true);
 	}

 	private void updateWorkingSetScope() {
 		if(workingSets != null) {
 			for (int i = 0; i < workingSets.length; i++) {
 				IWorkingSet set = workingSets[i];
 				List resources = IDE.computeSelectedResources(new StructuredSelection(set.getElements()));
 				if(! resources.isEmpty()) {
 					IResource[] resources2 = (IResource[])resources.toArray(new IResource[resources.size()]);
 					scopeCheckingElement = true;
 					fViewer.setCheckedElements(resources2);
 					scopeCheckingElement = false;
 					intializeSelectionInViewer(resources2);
 				}
 			}
 			setPageComplete(true);
 		} else {
 			scopeCheckingElement = true;
 			fViewer.setCheckedElements(new Object[0]);
 			scopeCheckingElement = false;
 			setPageComplete(false);
 		}
 	}

 	private IResource[] getResourcesFromSelection() {
 		IWorkbenchWindow activeWorkbenchWindow = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
 		if (activeWorkbenchWindow != null) {
 			IWorkbenchPart activePart = activeWorkbenchWindow.getPartService().getActivePart();
 			if (activePart != null) {
 				ISelectionProvider selectionProvider = activePart.getSite().getSelectionProvider();
 				if (selectionProvider != null) {
 					ISelection selection = selectionProvider.getSelection();
 					if(selection instanceof IStructuredSelection) {
 						return Utils.getResources(((IStructuredSelection)selection).toArray());
 					}
 				}
 			}
 		}
 		return new IResource[0];
 	}

 	private void collectCheckedItems(TreeItem item, List checked) {
 		if(item.getChecked() && !item.getGrayed()) {
 			checked.add(item.getData());
 		} else if(item.getGrayed()) {
 			TreeItem[] children = item.getItems();
 			for (int i = 0; i < children.length; i++) {
 				TreeItem child = children[i];
 				collectCheckedItems(child, checked);
 			}
 		}
 	}

 	private void updateWorkingSetLabel() {
 		if (workingSets == null) {
 			workingSetLabel.setText(Policy.bind("StatisticsPanel.noWorkingSet")); //$NON-NLS-1$
 		} else {
 			StringBuffer buffer = new StringBuffer();
 			for (int i = 0; i < workingSets.length; i++) {
 				IWorkingSet set = workingSets[i];
 				if(i != 0) buffer.append(" ,"); //$NON-NLS-1$
 				buffer.append(set.getName());
 			}
 			workingSetLabel.setText(buffer.toString());
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2003 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Common Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/cpl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.team.internal.ui.synchronize;

	import java.util.*;
	import java.util.List;

	import org.eclipse.core.resources.IContainer;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.viewers.*;
	import org.eclipse.jface.wizard.WizardPage;
	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.*;
	import org.eclipse.team.internal.ui.Policy;
	import org.eclipse.team.internal.ui.Utils;
	import org.eclipse.team.ui.synchronize.*;
	import org.eclipse.ui.*;
	import org.eclipse.ui.dialogs.IWorkingSetSelectionDialog;
	import org.eclipse.ui.ide.IDE;
	import org.eclipse.ui.internal.dialogs.ContainerCheckedTreeViewer;
	import org.eclipse.ui.model.BaseWorkbenchContentProvider;
	import org.eclipse.ui.model.WorkbenchLabelProvider;
	import org.eclipse.ui.views.navigator.ResourceSorter;

	/**
	* Page that allows the user to select a set of resources that are managed by a subscriber
	* participant. Callers can provide a scope hint to determine the initial selection for the
	* resource list. By default, the resources in the current selection are checked, otherwise
	* all resources are checked.
	*
	* @see SubscriberRefreshWizard
	* @since 3.0
	*/
	public class GlobalRefreshResourceSelectionPage extends WizardPage {

	private boolean scopeCheckingElement = false;

	// Set of scope hint to determine the initial selection
	private Button participantScope;
	private Button selectedResourcesScope;
	private Button workingSetScope;
	private Button selectWorkingSetButton;

	// The checked tree viewer
	private ContainerCheckedTreeViewer fViewer;

	// Working set label and holder
	private Text workingSetLabel;
	private IWorkingSet[] workingSets;
	private List resources;

	/**
	* Content provider that accepts a <code>SubscriberParticipant</code> as input and
	* returns the participants root resources.
	*/
	class MyContentProvider extends BaseWorkbenchContentProvider {
	public Object[] getChildren(Object element) {
	if(element instanceof List) {
	return (IResource[]) ((List)element).toArray(new IResource[((List)element).size()]);
	}
	return super.getChildren(element);
	}
	}

	/**
	* Label decorator that will display the full path for participant roots that are folders. This
	* is useful for participants that have non-project roots.
	*/
	class MyLabelProvider extends LabelProvider {
	private LabelProvider workbenchProvider = new WorkbenchLabelProvider();
	public String getText(Object element) {
	if(element instanceof IContainer) {
	IContainer c = (IContainer)element;
	if(c.getType() != IResource.PROJECT && resources.contains(c)) {
	return c.getFullPath().toString();
	}
	}
	return workbenchProvider.getText(element);
	}
	public Image getImage(Object element) {
	return workbenchProvider.getImage(element);
	}
	}

	/**
	* Create a new page for the given participant. The scope hint will determine the initial selection.
	*
	* @param participant the participant to synchronize
	*/
	public GlobalRefreshResourceSelectionPage(IResource[] resources) {
	super(Policy.bind("GlobalRefreshResourceSelectionPage.1")); //$NON-NLS-1$
	// Caching the roots so that the decorator doesn't have to recompute all the time.
	this.resources = Arrays.asList(resources);
	setDescription(Policy.bind("GlobalRefreshResourceSelectionPage.2")); //$NON-NLS-1$
	setTitle(Policy.bind("GlobalRefreshResourceSelectionPage.3")); //$NON-NLS-1$
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
	*/
	public void createControl(Composite parent2) {
	Composite top = new Composite(parent2, SWT.NULL);
	top.setLayout(new GridLayout());

	GridData data = new GridData(GridData.FILL_BOTH);
	data.widthHint = 50;
	top.setLayoutData(data);
	setControl(top);

	if (resources.isEmpty()) {
	Label l = new Label(top, SWT.NULL);
	l.setText(Policy.bind("GlobalRefreshResourceSelectionPage.4")); //$NON-NLS-1$
	setPageComplete(false);
	} else {
	Label l = new Label(top, SWT.NULL);
	l.setText(Policy.bind("GlobalRefreshResourceSelectionPage.5")); //$NON-NLS-1$

	// The viewer
	fViewer = new ContainerCheckedTreeViewer(top, SWT.BORDER);
	data = new GridData(GridData.FILL_BOTH);
	//data.widthHint = 200;
	data.heightHint = 100;
	fViewer.getControl().setLayoutData(data);
	fViewer.setContentProvider(new MyContentProvider());
	fViewer.setLabelProvider( new DecoratingLabelProvider(
	new MyLabelProvider(),
	PlatformUI.getWorkbench().getDecoratorManager().getLabelDecorator()));
	fViewer.addCheckStateListener(new ICheckStateListener() {
	public void checkStateChanged(CheckStateChangedEvent event) {
	updateOKStatus();
	}
	});
	fViewer.setSorter(new ResourceSorter(ResourceSorter.NAME));
	fViewer.setInput(resources);

	// Scopes
	Group scopeGroup = new Group(top, SWT.NULL);
	scopeGroup.setText(Policy.bind("GlobalRefreshResourceSelectionPage.6")); //$NON-NLS-1$
	GridLayout layout = new GridLayout();
	layout.numColumns = 3;
	layout.makeColumnsEqualWidth = false;
	scopeGroup.setLayout(layout);
	data = new GridData(GridData.FILL_HORIZONTAL);
	data.widthHint = 50;
	scopeGroup.setLayoutData(data);

	participantScope = new Button(scopeGroup, SWT.RADIO);
	participantScope.setText(Policy.bind("GlobalRefreshResourceSelectionPage.7")); //$NON-NLS-1$
	participantScope.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	updateParticipantScope();
	}
	});

	selectedResourcesScope = new Button(scopeGroup, SWT.RADIO);
	selectedResourcesScope.setText(Policy.bind("GlobalRefreshResourceSelectionPage.8")); //$NON-NLS-1$
	selectedResourcesScope.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	updateSelectedResourcesScope();
	}
	});
	data = new GridData();
	data.horizontalSpan = 2;
	selectedResourcesScope.setLayoutData(data);


	workingSetScope = new Button(scopeGroup, SWT.RADIO);
	workingSetScope.setText(Policy.bind("GlobalRefreshResourceSelectionPage.10")); //$NON-NLS-1$
	workingSetScope.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	if(workingSetScope.getSelection()) {
	updateWorkingSetScope();
	}
	}
	});

	workingSetLabel = new Text(scopeGroup, SWT.BORDER);
	workingSetLabel.setEditable(false);
	data = new GridData(GridData.FILL_HORIZONTAL);
	workingSetLabel.setLayoutData(data);

	Button selectWorkingSetButton = new Button(scopeGroup, SWT.NULL);
	selectWorkingSetButton.setText(Policy.bind("GlobalRefreshResourceSelectionPage.11")); //$NON-NLS-1$
	selectWorkingSetButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	selectWorkingSetAction();
	}
	});
	data = new GridData(GridData.HORIZONTAL_ALIGN_END);
	selectWorkingSetButton.setLayoutData(data);
	Dialog.applyDialogFont(selectWorkingSetButton);

	Composite selectGroup = new Composite(top, SWT.SHADOW_NONE);
	layout = new GridLayout();
	layout.numColumns = 2;
	layout.marginHeight = 0;
	layout.marginWidth = 0;
	layout.makeColumnsEqualWidth = false;
	selectGroup.setLayout(layout);
	data = new GridData(GridData.FILL_HORIZONTAL);
	selectGroup.setLayoutData(data);

	Button selectAll = new Button(selectGroup, SWT.NULL);
	selectAll.setText(Policy.bind("GlobalRefreshResourceSelectionPage.12")); //$NON-NLS-1$
	selectAll.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	participantScope.setSelection(true);
	selectedResourcesScope.setSelection(false);
	workingSetScope.setSelection(false);
	updateParticipantScope();
	scopeCheckingElement = true;
	updateOKStatus();
	scopeCheckingElement = false;
	}
	});
	selectAll.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING));

	Button deSelectAll = new Button(selectGroup, SWT.NULL);
	deSelectAll.setText(Policy.bind("GlobalRefreshResourceSelectionPage.13")); //$NON-NLS-1$
	deSelectAll.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	fViewer.setCheckedElements(new Object[0]);
	updateOKStatus();
	}
	});
	deSelectAll.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING));

	//workingSet = participant.getWorkingSet();
	//updateWorkingSetLabel();
	initializeScopingHint();
	}
	Dialog.applyDialogFont(top);
	}

	/**
	* Allow the finish button to be pressed if there are checked resources.
	*
	*/
	protected void updateOKStatus() {
	if(fViewer != null) {
	if(! scopeCheckingElement) {
	if(! selectedResourcesScope.getSelection()) {
	selectedResourcesScope.setSelection(true);
	participantScope.setSelection(false);
	workingSetScope.setSelection(false);
	updateSelectedResourcesScope();
	}
	}
	setPageComplete(areAnyElementsChecked() != null);
	} else {
	setPageComplete(false);
	}
	}

	/**
	* Returns <code>true</code> if any of the root resources are grayed.
	*/
	private IResource areAnyElementsChecked() {
	TreeItem[] item = fViewer.getTree().getItems();
	List checked = new ArrayList();
	for (int i = 0; i < item.length; i++) {
	TreeItem child = item[i];
	if(child.getChecked() \|\| child.getGrayed()) {
	return (IResource)child.getData();
	}
	}
	return null;
	}

	/**
	* Return the list of top-most resources that have been checked.
	*
	* @return the list of top-most resources that have been checked or an
	* empty list if nothing is selected.
	*/
	public IResource[] getRootResources() {
	TreeItem[] item = fViewer.getTree().getItems();
	List checked = new ArrayList();
	for (int i = 0; i < item.length; i++) {
	TreeItem child = item[i];
	collectCheckedItems(child, checked);
	}
	return (IResource[]) checked.toArray(new IResource[checked.size()]);
	}

	public ISynchronizeScope getSynchronizeScope() {
	if (workingSetScope.getSelection()) {
	return new WorkingSetScope(workingSets);
	}
	if (participantScope.getSelection()) {
	return new WorkspaceScope();
	}
	return new ResourceScope(getRootResources());
	}

	private void initializeScopingHint() {
	participantScope.setSelection(true);
	updateParticipantScope();
	}

	private void intializeSelectionInViewer(IResource[] resources) {
	}

	private void updateParticipantScope() {
	if(participantScope.getSelection()) {
	scopeCheckingElement = true;
	fViewer.setCheckedElements(resources.toArray());
	scopeCheckingElement = false;
	}
	}

	private void updateSelectedResourcesScope() {
	setPageComplete(getRootResources().length > 0);
	}

	private void selectWorkingSetAction() {
	IWorkingSetManager manager = PlatformUI.getWorkbench().getWorkingSetManager();
	IWorkingSetSelectionDialog dialog = manager.createWorkingSetSelectionDialog(getShell(), true);
	dialog.open();
	IWorkingSet[] sets = dialog.getSelection();
	if(sets != null) {
	workingSets = sets;
	} else {
	// dialog cancelled
	return;
	}
	updateWorkingSetScope();
	updateWorkingSetLabel();

	participantScope.setSelection(false);
	selectedResourcesScope.setSelection(false);
	workingSetScope.setSelection(true);
	}

	private void updateWorkingSetScope() {
	if(workingSets != null) {
	for (int i = 0; i < workingSets.length; i++) {
	IWorkingSet set = workingSets[i];
	List resources = IDE.computeSelectedResources(new StructuredSelection(set.getElements()));
	if(! resources.isEmpty()) {
	IResource[] resources2 = (IResource[])resources.toArray(new IResource[resources.size()]);
	scopeCheckingElement = true;
	fViewer.setCheckedElements(resources2);
	scopeCheckingElement = false;
	intializeSelectionInViewer(resources2);
	}
	}
	setPageComplete(true);
	} else {
	scopeCheckingElement = true;
	fViewer.setCheckedElements(new Object[0]);
	scopeCheckingElement = false;
	setPageComplete(false);
	}
	}

	private IResource[] getResourcesFromSelection() {
	IWorkbenchWindow activeWorkbenchWindow = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
	if (activeWorkbenchWindow != null) {
	IWorkbenchPart activePart = activeWorkbenchWindow.getPartService().getActivePart();
	if (activePart != null) {
	ISelectionProvider selectionProvider = activePart.getSite().getSelectionProvider();
	if (selectionProvider != null) {
	ISelection selection = selectionProvider.getSelection();
	if(selection instanceof IStructuredSelection) {
	return Utils.getResources(((IStructuredSelection)selection).toArray());
	}
	}
	}
	}
	return new IResource[0];
	}

	private void collectCheckedItems(TreeItem item, List checked) {
	if(item.getChecked() && !item.getGrayed()) {
	checked.add(item.getData());
	} else if(item.getGrayed()) {
	TreeItem[] children = item.getItems();
	for (int i = 0; i < children.length; i++) {
	TreeItem child = children[i];
	collectCheckedItems(child, checked);
	}
	}
	}

	private void updateWorkingSetLabel() {
	if (workingSets == null) {
	workingSetLabel.setText(Policy.bind("StatisticsPanel.noWorkingSet")); //$NON-NLS-1$
	} else {
	StringBuffer buffer = new StringBuffer();
	for (int i = 0; i < workingSets.length; i++) {
	IWorkingSet set = workingSets[i];
	if(i != 0) buffer.append(" ,"); //$NON-NLS-1$
	buffer.append(set.getName());
	}
	workingSetLabel.setText(buffer.toString());
	}
	}
	}