bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/dialogs/WizardExportResourcesPage.java - platform/eclipse.platform.ui - Git at Google

 package org.eclipse.ui.dialogs;

 /************************************************************************
 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 - Initial implementation
 ************************************************************************/
 import java.util.*;

 import org.eclipse.core.resources.*;
 import org.eclipse.core.runtime.*;
 import org.eclipse.jface.dialogs.*;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.ITreeContentProvider;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.BusyIndicator;
 import org.eclipse.swt.events.*;
 import org.eclipse.swt.graphics.Font;
 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.Shell;
 import org.eclipse.ui.internal.Workbench;
 import org.eclipse.ui.internal.WorkbenchMessages;
 import org.eclipse.ui.internal.WorkbenchPlugin;
 import org.eclipse.ui.internal.dialogs.DialogUtil;
 import org.eclipse.ui.internal.dialogs.ResourceTreeAndListGroup;
 import org.eclipse.ui.model.WorkbenchContentProvider;
 import org.eclipse.ui.model.WorkbenchLabelProvider;

 /**
  * Abstract superclass for a typical export wizard's main page.
  * <p>
  * Clients may subclass this page to inherit its common destination resource
  * selection facilities.
  * </p>
  * <p>
  * Subclasses must implement
  * <ul>
  *   <li><code>createDestinationGroup</code></li>
  * </ul>
  * </p>
  * <p>
  * Subclasses may override
  * <ul>
  *   <li><code>allowNewContainerName</code></li>
  * </ul>
  * </p>
  * <p>
  * Subclasses may extend
  * <ul>
  *   <li><code>handleEvent</code></li>
  *   <li><code>internalSaveWidgetValues</code></li>
  *   <li><code>updateWidgetEnablements</code></li>
  * </ul>
  * </p>
  */
 public abstract class WizardExportResourcesPage
 	extends WizardDataTransferPage {
 	private IStructuredSelection initialResourceSelection;
 	private List selectedTypes = new ArrayList();

 	// widgets
 	private ResourceTreeAndListGroup resourceGroup;

 	private final static String SELECT_TYPES_TITLE = WorkbenchMessages.getString("WizardTransferPage.selectTypes"); //$NON-NLS-1$
 	private final static String SELECT_ALL_TITLE = WorkbenchMessages.getString("WizardTransferPage.selectAll"); //$NON-NLS-1$
 	private final static String DESELECT_ALL_TITLE = WorkbenchMessages.getString("WizardTransferPage.deselectAll"); //$NON-NLS-1$

 	/**
 	 * Creates an export wizard page. If the current resource selection
 	 * is not empty then it will be used as the initial collection of resources
 	 * selected for export.
 	 *
 	 * @param pageName the name of the page
 	 * @param selection the current resource selection
 	 */
 	protected WizardExportResourcesPage(
 		String pageName,
 		IStructuredSelection selection) {
 		super(pageName);
 		this.initialResourceSelection = selection;
 	}
 	/**
 	 * The <code>addToHierarchyToCheckedStore</code> implementation of this
 	 * <code>WizardDataTransferPage</code> method returns <code>false</code>.
 	 * Subclasses may override this method.
 	 */
 	protected boolean allowNewContainerName() {
 		return false;
 	}
 	/**
 	 * Creates a new button with the given id.
 	 * <p>
 	 * The <code>Dialog</code> implementation of this framework method
 	 * creates a standard push button, registers for selection events
 	 * including button presses and registers
 	 * default buttons with its shell.
 	 * The button id is stored as the buttons client data.
 	 * Note that the parent's layout is assumed to be a GridLayout and
 	 * the number of columns in this layout is incremented.
 	 * Subclasses may override.
 	 * </p>
 	 *
 	 * @param parent the parent composite
 	 * @param id the id of the button (see
 	 *  <code>IDialogConstants.*_ID</code> constants
 	 *  for standard dialog button ids)
 	 * @param label the label from the button
 	 * @param defaultButton <code>true</code> if the button is to be the
 	 *   default button, and <code>false</code> otherwise
 	 */
 	protected Button createButton(
 		Composite parent,
 		int id,
 		String label,
 		boolean defaultButton) {
 		// increment the number of columns in the button bar
 		 ((GridLayout) parent.getLayout()).numColumns++;

 		Button button = new Button(parent, SWT.PUSH);

 		GridData buttonData = new GridData(GridData.FILL_HORIZONTAL);
 		button.setLayoutData(buttonData);

 		button.setData(new Integer(id));
 		button.setText(label);
 		button.setFont(parent.getFont());

 		if (defaultButton) {
 			Shell shell = parent.getShell();
 			if (shell != null) {
 				shell.setDefaultButton(button);
 			}
 			button.setFocus();
 		}
 		button.setFont(parent.getFont());
 		setButtonLayoutData(button);
 		return button;
 	}
 	/**
 	 * Creates the buttons for selecting specific types or selecting all or none of the
 	 * elements.
 	 *
 	 * @param parent the parent control
 	 */
 	protected final void createButtonsGroup(Composite parent) {

 		Font font = parent.getFont();

 		// top level group
 		Composite buttonComposite = new Composite(parent, SWT.NONE);
 		buttonComposite.setFont(parent.getFont());

 		GridLayout layout = new GridLayout();
 		layout.numColumns = 3;
 		layout.makeColumnsEqualWidth = true;
 		buttonComposite.setLayout(layout);
 		buttonComposite.setLayoutData(
 			new GridData(
 				GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL));

 		// types edit button
 		Button selectTypesButton =
 			createButton(
 				buttonComposite,
 				IDialogConstants.SELECT_TYPES_ID,
 				SELECT_TYPES_TITLE,
 				false);

 		SelectionListener listener = new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				handleTypesEditButtonPressed();
 			}
 		};
 		selectTypesButton.addSelectionListener(listener);
 		selectTypesButton.setFont(font);
 		setButtonLayoutData(selectTypesButton);

 		Button selectButton =
 			createButton(
 				buttonComposite,
 				IDialogConstants.SELECT_ALL_ID,
 				SELECT_ALL_TITLE,
 				false);

 		listener = new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				resourceGroup.setAllSelections(true);
 			}
 		};
 		selectButton.addSelectionListener(listener);
 		selectButton.setFont(font);
 		setButtonLayoutData(selectButton);

 		Button deselectButton =
 			createButton(
 				buttonComposite,
 				IDialogConstants.DESELECT_ALL_ID,
 				DESELECT_ALL_TITLE,
 				false);

 		listener = new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				resourceGroup.setAllSelections(false);
 			}
 		};
 		deselectButton.addSelectionListener(listener);
 		deselectButton.setFont(font);
 		setButtonLayoutData(deselectButton);

 	}
 	/** (non-Javadoc)
 	 * Method declared on IDialogPage.
 	 */
 	public void createControl(Composite parent) {

 		initializeDialogUnits(parent);

 		Composite composite = new Composite(parent, SWT.NULL);
 		composite.setLayout(new GridLayout());
 		composite.setLayoutData(
 			new GridData(
 				GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL));
 		composite.setFont(parent.getFont());

 		createResourcesGroup(composite);
 		createButtonsGroup(composite);

 		createDestinationGroup(composite);

 		createOptionsGroup(composite);

 		restoreResourceSpecificationWidgetValues(); // ie.- local
 		restoreWidgetValues(); // ie.- subclass hook
 		if (initialResourceSelection != null)
 			setupBasedOnInitialSelections();

 		updateWidgetEnablements();
 		setPageComplete(determinePageCompletion());

 		setControl(composite);
 	}
 	/**
 	 * Creates the export destination specification visual components.
 	 * <p>
 	 * Subclasses must implement this method.
 	 * </p>
 	 *
 	 * @param parent the parent control
 	 */
 	protected abstract void createDestinationGroup(Composite parent);
 	/**
 	 * Creates the checkbox tree and list for selecting resources.
 	 *
 	 * @param parent the parent control
 	 */
 	protected final void createResourcesGroup(Composite parent) {

 		//create the input element, which has the root resource
 		//as its only child
 		List input = new ArrayList();
 		IProject[] projects =
 			ResourcesPlugin.getWorkspace().getRoot().getProjects();
 		for (int i = 0; i < projects.length; i++) {
 			if (projects[i].isOpen())
 				input.add(projects[i]);
 		}

 		this.resourceGroup =
 			new ResourceTreeAndListGroup(
 				parent,
 				input,
 				getResourceProvider(IResource.FOLDER | IResource.PROJECT),
 				WorkbenchLabelProvider.getDecoratingWorkbenchLabelProvider(),
 				getResourceProvider(IResource.FILE),
 				WorkbenchLabelProvider.getDecoratingWorkbenchLabelProvider(),
 				SWT.NONE,
 				DialogUtil.inRegularFontMode(parent));

 	}
 	/*
 	 * @see WizardDataTransferPage.getErrorDialogTitle()
 	 */
 	protected String getErrorDialogTitle() {
 		return WorkbenchMessages.getString("WizardExportPage.errorDialogTitle"); //$NON-NLS-1$
 	}
 	/**
 	 * Obsolete method. This was implemented to handle the case where ensureLocal()
 	 * needed to be called but it doesn't use it any longer.
 	 *
 	 * @deprecated Only retained for backwards compatibility.
 	 */
 	protected boolean ensureResourcesLocal(List resources) {
 		return true;
 	}

 	/**
 	 * Returns a new subcollection containing only those resources which are not
 	 * local.
 	 *
 	 * @param originalList the original list of resources (element type:
 	 *   <code>IResource</code>)
 	 * @return the new list of non-local resources (element type:
 	 *   <code>IResource</code>)
 	 */
 	protected List extractNonLocalResources(List originalList) {
 		Vector result = new Vector(originalList.size());
 		Iterator resourcesEnum = originalList.iterator();

 		while (resourcesEnum.hasNext()) {
 			IResource currentResource = (IResource) resourcesEnum.next();
 			if (!currentResource.isLocal(IResource.DEPTH_ZERO))
 				result.addElement(currentResource);
 		}

 		return result;
 	}
 	/**
 	 * Returns a content provider for <code>IResource</code>s that returns
 	 * only children of the given resource type.
 	 */
 	private ITreeContentProvider getResourceProvider(final int resourceType) {
 		return new WorkbenchContentProvider() {
 			public Object[] getChildren(Object o) {
 				if (o instanceof IContainer) {
 					IResource[] members = null;
 					try {
 						members = ((IContainer) o).members();
 					} catch (CoreException e) {
 						//just return an empty set of children
 						return new Object[0];
 					}

 					//filter out the desired resource types
 					ArrayList results = new ArrayList();
 					for (int i = 0; i < members.length; i++) {
 						//And the test bits with the resource types to see if they are what we want
 						if ((members[i].getType() & resourceType) > 0) {
 							results.add(members[i]);
 						}
 					}
 					return results.toArray();
 				} else {
 					//input element case
 					if (o instanceof ArrayList) {
 						return ((ArrayList) o).toArray();
 					} else {
 						return new Object[0];
 					}
 				}
 			}
 		};
 	}
 	/**
 	 * Returns this page's collection of currently-specified resources to be
 	 * exported. This is the primary resource selection facility accessor for
 	 * subclasses.
 	 *
 	 * @return a collection of resources currently selected
 	 * for export (element type: <code>IResource</code>)
 	 */
 	protected List getSelectedResources() {
 		Iterator resourcesToExportIterator =
 			this.getSelectedResourcesIterator();
 		List resourcesToExport = new ArrayList();
 		while (resourcesToExportIterator.hasNext())
 			resourcesToExport.add(resourcesToExportIterator.next());
 		return resourcesToExport;
 	}
 	/**
 	 * Returns this page's collection of currently-specified resources to be
 	 * exported. This is the primary resource selection facility accessor for
 	 * subclasses.
 	 *
 	 * @return an iterator over the collection of resources currently selected
 	 * for export (element type: <code>IResource</code>). This will include
 	 * white checked folders and individually checked files.
 	 */
 	protected Iterator getSelectedResourcesIterator() {
 		return this.resourceGroup.getAllCheckedListItems().iterator();
 	}
 	/**
 	 * Returns the resource extensions currently specified to be exported.
 	 *
 	 * @return the resource extensions currently specified to be exported (element
 	 *   type: <code>String</code>)
 	 */
 	protected List getTypesToExport() {

 		return selectedTypes;
 	}
 	/**
 	 * Returns this page's collection of currently-specified resources to be
 	 * exported. This returns both folders and files - for just the files use
 	 * getSelectedResources.
 	 *
 	 * @return a collection of resources currently selected
 	 * for export (element type: <code>IResource</code>)
 	 */
 	protected List getWhiteCheckedResources() {

 		return this.resourceGroup.getAllWhiteCheckedItems();
 	}
 	/**
 	 * Queries the user for the types of resources to be exported and selects
 	 * them in the checkbox group.
 	 */
 	protected void handleTypesEditButtonPressed() {
 		Object[] newSelectedTypes = queryResourceTypesToExport();

 		if (newSelectedTypes != null) { // ie.- did not press Cancel
 			this.selectedTypes = new ArrayList(newSelectedTypes.length);
 			for (int i = 0; i < newSelectedTypes.length; i++) {
 				this.selectedTypes.add(newSelectedTypes[i]);
 			}
 			setupSelectionsBasedOnSelectedTypes();
 		}

 	}
 	/**
 	 * Returns whether the extension of the given resource name is an extension that
 	 * has been specified for export by the user.
 	 *
 	 * @param resourceName the resource name
 	 * @return <code>true</code> if the resource name is suitable for export based
 	 *   upon its extension
 	 */
 	protected boolean hasExportableExtension(String resourceName) {
 		if (selectedTypes == null) // ie.- all extensions are acceptable
 			return true;

 		int separatorIndex = resourceName.lastIndexOf("."); //$NON-NLS-1$
 		if (separatorIndex == -1)
 			return false;

 		String extension = resourceName.substring(separatorIndex + 1);

 		Iterator enum = selectedTypes.iterator();
 		while (enum.hasNext()) {
 			if (extension.equalsIgnoreCase((String) enum.next()))
 				return true;
 		}

 		return false;
 	}
 	/**
 	 * Persists additional setting that are to be restored in the next instance of
 	 * this page.
 	 * <p>
 	 * The <code>WizardImportPage</code> implementation of this method does
 	 * nothing. Subclasses may extend to persist additional settings.
 	 * </p>
 	 */
 	protected void internalSaveWidgetValues() {
 	}
 	/**
 	 * Queries the user for the resource types that are to be exported and returns
 	 * these types as an array.
 	 *
 	 * @return the resource types selected for export (element type:
 	 *   <code>String</code>), or <code>null</code> if the user canceled the
 	 *   selection
 	 */
 	protected Object[] queryResourceTypesToExport() {

 		TypeFilteringDialog dialog =
 			new TypeFilteringDialog(
 				getContainer().getShell(),
 				getTypesToExport());

 		dialog.open();

 		return dialog.getResult();
 	}
 	/**
 	 * Restores resource specification control settings that were persisted
 	 * in the previous instance of this page. Subclasses wishing to restore
 	 * persisted values for their controls may extend.
 	 */
 	protected void restoreResourceSpecificationWidgetValues() {
 	}
 	/**
 	 * Persists resource specification control setting that are to be restored
 	 * in the next instance of this page. Subclasses wishing to persist additional
 	 * setting for their controls should extend hook method
 	 * <code>internalSaveWidgetValues</code>.
 	 */
 	protected void saveWidgetValues() {

 		// allow subclasses to save values
 		internalSaveWidgetValues();

 	}
 	/**
 	 * Set the initial selections in the resource group.
 	 */
 	protected void setupBasedOnInitialSelections() {

 		Iterator enum = this.initialResourceSelection.iterator();
 		while (enum.hasNext()) {
 			IResource currentResource = (IResource) enum.next();
 			if (currentResource.getType() == IResource.FILE)
 				this.resourceGroup.initialCheckListItem(currentResource);
 			else
 				this.resourceGroup.initialCheckTreeItem(currentResource);
 		}
 	}
 	/**
 	 * Update the tree to only select those elements that match the selected types
 	 */
 	private void setupSelectionsBasedOnSelectedTypes() {

 		Runnable runnable = new Runnable() {
 			public void run() {
 				Map selectionMap = new Hashtable();
 				//Only get the white selected ones
 				Iterator resourceIterator =
 					resourceGroup.getAllWhiteCheckedItems().iterator();
 				while (resourceIterator.hasNext()) {
 					//handle the files here - white checked containers require recursion
 					IResource resource = (IResource) resourceIterator.next();
 					if (resource.getType() == IResource.FILE) {
 						if (hasExportableExtension(resource.getName())) {
 							List resourceList = new ArrayList();
 							IContainer parent = resource.getParent();
 							if (selectionMap.containsKey(parent))
 								resourceList = (List) selectionMap.get(parent);
 							resourceList.add(resource);
 							selectionMap.put(parent, resourceList);
 						}
 					} else
 						setupSelectionsBasedOnSelectedTypes(
 							selectionMap,
 							(IContainer) resource);
 				}
 				resourceGroup.updateSelections(selectionMap);
 			}
 		};

 		BusyIndicator.showWhile(getShell().getDisplay(), runnable);

 	}
 	/**
 	* Set up the selection values for the resources and put them in the selectionMap.
 	* If a resource is a file see if it matches one of the selected extensions. If not
 	* then check the children.
 	* @return a boolean if any children are selected
 	*/
 	private void setupSelectionsBasedOnSelectedTypes(
 		Map selectionMap,
 		IContainer parent) {

 		List selections = new ArrayList();
 		IResource[] resources;
 		boolean hasFiles = false;

 		try {
 			resources = parent.members();
 		} catch (CoreException exception) {
 			//Just return if we can't get any info
 			return;
 		}

 		for (int i = 0; i < resources.length; i++) {
 			IResource resource = resources[i];
 			if (resource.getType() == IResource.FILE) {
 				if (hasExportableExtension(resource.getName())) {
 					hasFiles = true;
 					selections.add(resource);
 				}
 			} else {
 				setupSelectionsBasedOnSelectedTypes(
 					selectionMap,
 					(IContainer) resource);
 			}
 		}

 		//Only add it to the list if there are files in this folder
 		if (hasFiles)
 			selectionMap.put(parent, selections);
 	}

 	/**
 	 * Save any editors that the user wants to save before export.
 	 * @return boolean if the save was successful.
 	 */
 	protected boolean saveDirtyEditors() {
 		return (
 			(Workbench) WorkbenchPlugin
 				.getDefault()
 				.getWorkbench())
 				.saveAllEditors(
 			true);
 	}
 }
	package org.eclipse.ui.dialogs;

	/************************************************************************
	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 - Initial implementation
	************************************************************************/
	import java.util.*;

	import org.eclipse.core.resources.*;
	import org.eclipse.core.runtime.*;
	import org.eclipse.jface.dialogs.*;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.ITreeContentProvider;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.BusyIndicator;
	import org.eclipse.swt.events.*;
	import org.eclipse.swt.graphics.Font;
	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.Shell;
	import org.eclipse.ui.internal.Workbench;
	import org.eclipse.ui.internal.WorkbenchMessages;
	import org.eclipse.ui.internal.WorkbenchPlugin;
	import org.eclipse.ui.internal.dialogs.DialogUtil;
	import org.eclipse.ui.internal.dialogs.ResourceTreeAndListGroup;
	import org.eclipse.ui.model.WorkbenchContentProvider;
	import org.eclipse.ui.model.WorkbenchLabelProvider;

	/**
	* Abstract superclass for a typical export wizard's main page.
	* <p>
	* Clients may subclass this page to inherit its common destination resource
	* selection facilities.
	* </p>
	* <p>
	* Subclasses must implement
	* <ul>
	* <li><code>createDestinationGroup</code></li>
	* </ul>
	* </p>
	* <p>
	* Subclasses may override
	* <ul>
	* <li><code>allowNewContainerName</code></li>
	* </ul>
	* </p>
	* <p>
	* Subclasses may extend
	* <ul>
	* <li><code>handleEvent</code></li>
	* <li><code>internalSaveWidgetValues</code></li>
	* <li><code>updateWidgetEnablements</code></li>
	* </ul>
	* </p>
	*/
	public abstract class WizardExportResourcesPage
	extends WizardDataTransferPage {
	private IStructuredSelection initialResourceSelection;
	private List selectedTypes = new ArrayList();

	// widgets
	private ResourceTreeAndListGroup resourceGroup;

	private final static String SELECT_TYPES_TITLE = WorkbenchMessages.getString("WizardTransferPage.selectTypes"); //$NON-NLS-1$
	private final static String SELECT_ALL_TITLE = WorkbenchMessages.getString("WizardTransferPage.selectAll"); //$NON-NLS-1$
	private final static String DESELECT_ALL_TITLE = WorkbenchMessages.getString("WizardTransferPage.deselectAll"); //$NON-NLS-1$

	/**
	* Creates an export wizard page. If the current resource selection
	* is not empty then it will be used as the initial collection of resources
	* selected for export.
	*
	* @param pageName the name of the page
	* @param selection the current resource selection
	*/
	protected WizardExportResourcesPage(
	String pageName,
	IStructuredSelection selection) {
	super(pageName);
	this.initialResourceSelection = selection;
	}
	/**
	* The <code>addToHierarchyToCheckedStore</code> implementation of this
	* <code>WizardDataTransferPage</code> method returns <code>false</code>.
	* Subclasses may override this method.
	*/
	protected boolean allowNewContainerName() {
	return false;
	}
	/**
	* Creates a new button with the given id.
	* <p>
	* The <code>Dialog</code> implementation of this framework method
	* creates a standard push button, registers for selection events
	* including button presses and registers
	* default buttons with its shell.
	* The button id is stored as the buttons client data.
	* Note that the parent's layout is assumed to be a GridLayout and
	* the number of columns in this layout is incremented.
	* Subclasses may override.
	* </p>
	*
	* @param parent the parent composite
	* @param id the id of the button (see
	* <code>IDialogConstants.*_ID</code> constants
	* for standard dialog button ids)
	* @param label the label from the button
	* @param defaultButton <code>true</code> if the button is to be the
	* default button, and <code>false</code> otherwise
	*/
	protected Button createButton(
	Composite parent,
	int id,
	String label,
	boolean defaultButton) {
	// increment the number of columns in the button bar
	((GridLayout) parent.getLayout()).numColumns++;

	Button button = new Button(parent, SWT.PUSH);

	GridData buttonData = new GridData(GridData.FILL_HORIZONTAL);
	button.setLayoutData(buttonData);

	button.setData(new Integer(id));
	button.setText(label);
	button.setFont(parent.getFont());

	if (defaultButton) {
	Shell shell = parent.getShell();
	if (shell != null) {
	shell.setDefaultButton(button);
	}
	button.setFocus();
	}
	button.setFont(parent.getFont());
	setButtonLayoutData(button);
	return button;
	}
	/**
	* Creates the buttons for selecting specific types or selecting all or none of the
	* elements.
	*
	* @param parent the parent control
	*/
	protected final void createButtonsGroup(Composite parent) {

	Font font = parent.getFont();

	// top level group
	Composite buttonComposite = new Composite(parent, SWT.NONE);
	buttonComposite.setFont(parent.getFont());

	GridLayout layout = new GridLayout();
	layout.numColumns = 3;
	layout.makeColumnsEqualWidth = true;
	buttonComposite.setLayout(layout);
	buttonComposite.setLayoutData(
	new GridData(
	GridData.VERTICAL_ALIGN_FILL \| GridData.HORIZONTAL_ALIGN_FILL));

	// types edit button
	Button selectTypesButton =
	createButton(
	buttonComposite,
	IDialogConstants.SELECT_TYPES_ID,
	SELECT_TYPES_TITLE,
	false);

	SelectionListener listener = new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	handleTypesEditButtonPressed();
	}
	};
	selectTypesButton.addSelectionListener(listener);
	selectTypesButton.setFont(font);
	setButtonLayoutData(selectTypesButton);

	Button selectButton =
	createButton(
	buttonComposite,
	IDialogConstants.SELECT_ALL_ID,
	SELECT_ALL_TITLE,
	false);

	listener = new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	resourceGroup.setAllSelections(true);
	}
	};
	selectButton.addSelectionListener(listener);
	selectButton.setFont(font);
	setButtonLayoutData(selectButton);

	Button deselectButton =
	createButton(
	buttonComposite,
	IDialogConstants.DESELECT_ALL_ID,
	DESELECT_ALL_TITLE,
	false);

	listener = new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	resourceGroup.setAllSelections(false);
	}
	};
	deselectButton.addSelectionListener(listener);
	deselectButton.setFont(font);
	setButtonLayoutData(deselectButton);

	}
	/** (non-Javadoc)
	* Method declared on IDialogPage.
	*/
	public void createControl(Composite parent) {

	initializeDialogUnits(parent);

	Composite composite = new Composite(parent, SWT.NULL);
	composite.setLayout(new GridLayout());
	composite.setLayoutData(
	new GridData(
	GridData.VERTICAL_ALIGN_FILL \| GridData.HORIZONTAL_ALIGN_FILL));
	composite.setFont(parent.getFont());

	createResourcesGroup(composite);
	createButtonsGroup(composite);

	createDestinationGroup(composite);

	createOptionsGroup(composite);

	restoreResourceSpecificationWidgetValues(); // ie.- local
	restoreWidgetValues(); // ie.- subclass hook
	if (initialResourceSelection != null)
	setupBasedOnInitialSelections();

	updateWidgetEnablements();
	setPageComplete(determinePageCompletion());

	setControl(composite);
	}
	/**
	* Creates the export destination specification visual components.
	* <p>
	* Subclasses must implement this method.
	* </p>
	*
	* @param parent the parent control
	*/
	protected abstract void createDestinationGroup(Composite parent);
	/**
	* Creates the checkbox tree and list for selecting resources.
	*
	* @param parent the parent control
	*/
	protected final void createResourcesGroup(Composite parent) {

	//create the input element, which has the root resource
	//as its only child
	List input = new ArrayList();
	IProject[] projects =
	ResourcesPlugin.getWorkspace().getRoot().getProjects();
	for (int i = 0; i < projects.length; i++) {
	if (projects[i].isOpen())
	input.add(projects[i]);
	}

	this.resourceGroup =
	new ResourceTreeAndListGroup(
	parent,
	input,
	getResourceProvider(IResource.FOLDER \| IResource.PROJECT),
	WorkbenchLabelProvider.getDecoratingWorkbenchLabelProvider(),
	getResourceProvider(IResource.FILE),
	WorkbenchLabelProvider.getDecoratingWorkbenchLabelProvider(),
	SWT.NONE,
	DialogUtil.inRegularFontMode(parent));

	}
	/*
	* @see WizardDataTransferPage.getErrorDialogTitle()
	*/
	protected String getErrorDialogTitle() {
	return WorkbenchMessages.getString("WizardExportPage.errorDialogTitle"); //$NON-NLS-1$
	}
	/**
	* Obsolete method. This was implemented to handle the case where ensureLocal()
	* needed to be called but it doesn't use it any longer.
	*
	* @deprecated Only retained for backwards compatibility.
	*/
	protected boolean ensureResourcesLocal(List resources) {
	return true;
	}

	/**
	* Returns a new subcollection containing only those resources which are not
	* local.
	*
	* @param originalList the original list of resources (element type:
	* <code>IResource</code>)
	* @return the new list of non-local resources (element type:
	* <code>IResource</code>)
	*/
	protected List extractNonLocalResources(List originalList) {
	Vector result = new Vector(originalList.size());
	Iterator resourcesEnum = originalList.iterator();

	while (resourcesEnum.hasNext()) {
	IResource currentResource = (IResource) resourcesEnum.next();
	if (!currentResource.isLocal(IResource.DEPTH_ZERO))
	result.addElement(currentResource);
	}

	return result;
	}
	/**
	* Returns a content provider for <code>IResource</code>s that returns
	* only children of the given resource type.
	*/
	private ITreeContentProvider getResourceProvider(final int resourceType) {
	return new WorkbenchContentProvider() {
	public Object[] getChildren(Object o) {
	if (o instanceof IContainer) {
	IResource[] members = null;
	try {
	members = ((IContainer) o).members();
	} catch (CoreException e) {
	//just return an empty set of children
	return new Object[0];
	}

	//filter out the desired resource types
	ArrayList results = new ArrayList();
	for (int i = 0; i < members.length; i++) {
	//And the test bits with the resource types to see if they are what we want
	if ((members[i].getType() & resourceType) > 0) {
	results.add(members[i]);
	}
	}
	return results.toArray();
	} else {
	//input element case
	if (o instanceof ArrayList) {
	return ((ArrayList) o).toArray();
	} else {
	return new Object[0];
	}
	}
	}
	};
	}
	/**
	* Returns this page's collection of currently-specified resources to be
	* exported. This is the primary resource selection facility accessor for
	* subclasses.
	*
	* @return a collection of resources currently selected
	* for export (element type: <code>IResource</code>)
	*/
	protected List getSelectedResources() {
	Iterator resourcesToExportIterator =
	this.getSelectedResourcesIterator();
	List resourcesToExport = new ArrayList();
	while (resourcesToExportIterator.hasNext())
	resourcesToExport.add(resourcesToExportIterator.next());
	return resourcesToExport;
	}
	/**
	* Returns this page's collection of currently-specified resources to be
	* exported. This is the primary resource selection facility accessor for
	* subclasses.
	*
	* @return an iterator over the collection of resources currently selected
	* for export (element type: <code>IResource</code>). This will include
	* white checked folders and individually checked files.
	*/
	protected Iterator getSelectedResourcesIterator() {
	return this.resourceGroup.getAllCheckedListItems().iterator();
	}
	/**
	* Returns the resource extensions currently specified to be exported.
	*
	* @return the resource extensions currently specified to be exported (element
	* type: <code>String</code>)
	*/
	protected List getTypesToExport() {

	return selectedTypes;
	}
	/**
	* Returns this page's collection of currently-specified resources to be
	* exported. This returns both folders and files - for just the files use
	* getSelectedResources.
	*
	* @return a collection of resources currently selected
	* for export (element type: <code>IResource</code>)
	*/
	protected List getWhiteCheckedResources() {

	return this.resourceGroup.getAllWhiteCheckedItems();
	}
	/**
	* Queries the user for the types of resources to be exported and selects
	* them in the checkbox group.
	*/
	protected void handleTypesEditButtonPressed() {
	Object[] newSelectedTypes = queryResourceTypesToExport();

	if (newSelectedTypes != null) { // ie.- did not press Cancel
	this.selectedTypes = new ArrayList(newSelectedTypes.length);
	for (int i = 0; i < newSelectedTypes.length; i++) {
	this.selectedTypes.add(newSelectedTypes[i]);
	}
	setupSelectionsBasedOnSelectedTypes();
	}

	}
	/**
	* Returns whether the extension of the given resource name is an extension that
	* has been specified for export by the user.
	*
	* @param resourceName the resource name
	* @return <code>true</code> if the resource name is suitable for export based
	* upon its extension
	*/
	protected boolean hasExportableExtension(String resourceName) {
	if (selectedTypes == null) // ie.- all extensions are acceptable
	return true;

	int separatorIndex = resourceName.lastIndexOf("."); //$NON-NLS-1$
	if (separatorIndex == -1)
	return false;

	String extension = resourceName.substring(separatorIndex + 1);

	Iterator enum = selectedTypes.iterator();
	while (enum.hasNext()) {
	if (extension.equalsIgnoreCase((String) enum.next()))
	return true;
	}

	return false;
	}
	/**
	* Persists additional setting that are to be restored in the next instance of
	* this page.
	* <p>
	* The <code>WizardImportPage</code> implementation of this method does
	* nothing. Subclasses may extend to persist additional settings.
	* </p>
	*/
	protected void internalSaveWidgetValues() {
	}
	/**
	* Queries the user for the resource types that are to be exported and returns
	* these types as an array.
	*
	* @return the resource types selected for export (element type:
	* <code>String</code>), or <code>null</code> if the user canceled the
	* selection
	*/
	protected Object[] queryResourceTypesToExport() {

	TypeFilteringDialog dialog =
	new TypeFilteringDialog(
	getContainer().getShell(),
	getTypesToExport());

	dialog.open();

	return dialog.getResult();
	}
	/**
	* Restores resource specification control settings that were persisted
	* in the previous instance of this page. Subclasses wishing to restore
	* persisted values for their controls may extend.
	*/
	protected void restoreResourceSpecificationWidgetValues() {
	}
	/**
	* Persists resource specification control setting that are to be restored
	* in the next instance of this page. Subclasses wishing to persist additional
	* setting for their controls should extend hook method
	* <code>internalSaveWidgetValues</code>.
	*/
	protected void saveWidgetValues() {

	// allow subclasses to save values
	internalSaveWidgetValues();

	}
	/**
	* Set the initial selections in the resource group.
	*/
	protected void setupBasedOnInitialSelections() {

	Iterator enum = this.initialResourceSelection.iterator();
	while (enum.hasNext()) {
	IResource currentResource = (IResource) enum.next();
	if (currentResource.getType() == IResource.FILE)
	this.resourceGroup.initialCheckListItem(currentResource);
	else
	this.resourceGroup.initialCheckTreeItem(currentResource);
	}
	}
	/**
	* Update the tree to only select those elements that match the selected types
	*/
	private void setupSelectionsBasedOnSelectedTypes() {

	Runnable runnable = new Runnable() {
	public void run() {
	Map selectionMap = new Hashtable();
	//Only get the white selected ones
	Iterator resourceIterator =
	resourceGroup.getAllWhiteCheckedItems().iterator();
	while (resourceIterator.hasNext()) {
	//handle the files here - white checked containers require recursion
	IResource resource = (IResource) resourceIterator.next();
	if (resource.getType() == IResource.FILE) {
	if (hasExportableExtension(resource.getName())) {
	List resourceList = new ArrayList();
	IContainer parent = resource.getParent();
	if (selectionMap.containsKey(parent))
	resourceList = (List) selectionMap.get(parent);
	resourceList.add(resource);
	selectionMap.put(parent, resourceList);
	}
	} else
	setupSelectionsBasedOnSelectedTypes(
	selectionMap,
	(IContainer) resource);
	}
	resourceGroup.updateSelections(selectionMap);
	}
	};

	BusyIndicator.showWhile(getShell().getDisplay(), runnable);

	}
	/**
	* Set up the selection values for the resources and put them in the selectionMap.
	* If a resource is a file see if it matches one of the selected extensions. If not
	* then check the children.
	* @return a boolean if any children are selected
	*/
	private void setupSelectionsBasedOnSelectedTypes(
	Map selectionMap,
	IContainer parent) {

	List selections = new ArrayList();
	IResource[] resources;
	boolean hasFiles = false;

	try {
	resources = parent.members();
	} catch (CoreException exception) {
	//Just return if we can't get any info
	return;
	}

	for (int i = 0; i < resources.length; i++) {
	IResource resource = resources[i];
	if (resource.getType() == IResource.FILE) {
	if (hasExportableExtension(resource.getName())) {
	hasFiles = true;
	selections.add(resource);
	}
	} else {
	setupSelectionsBasedOnSelectedTypes(
	selectionMap,
	(IContainer) resource);
	}
	}

	//Only add it to the list if there are files in this folder
	if (hasFiles)
	selectionMap.put(parent, selections);
	}

	/**
	* Save any editors that the user wants to save before export.
	* @return boolean if the save was successful.
	*/
	protected boolean saveDirtyEditors() {
	return (
	(Workbench) WorkbenchPlugin
	.getDefault()
	.getWorkbench())
	.saveAllEditors(
	true);
	}
	}