core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/wizards/dialogfields/LinkToFileGroup.java - cdt/org.eclipse.cdt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2001 Rational Software Corp. and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Common Public License v0.5
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/cpl-v05.html
  *
  * Contributors:
  *     Rational Software - initial implementation
  ******************************************************************************/
 package org.eclipse.cdt.internal.ui.wizards.dialogfields;

 import java.io.File;

 import org.eclipse.cdt.internal.ui.wizards.NewWizardMessages;
 import org.eclipse.core.resources.IPathVariableManager;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IWorkspace;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.ModifyEvent;
 import org.eclipse.swt.events.ModifyListener;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.DirectoryDialog;
 import org.eclipse.swt.widgets.Event;
 import org.eclipse.swt.widgets.FileDialog;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.internal.WorkbenchMessages;
 import org.eclipse.ui.internal.WorkbenchPlugin;
 import org.eclipse.ui.internal.ide.dialogs.PathVariableSelectionDialog;

 /**
  */
 public class LinkToFileGroup extends StringButtonDialogField {
 	private String fText;
 	protected Listener listener;
 	private String initialLinkTarget;
 	private int type;
 	protected boolean createLink = false;

 	// used to compute layout sizes
 	//private FontMetrics fontMetrics;

 	// widgets
 	//private Composite groupComposite;
 	protected Text linkTargetField;
 	protected Button linkButton;
 	protected Button browseButton;
 	protected Button variablesButton;
 	private Label resolvedPathLabelText;
 	private Label resolvedPathLabelData;

 	public LinkToFileGroup(IStringButtonAdapter adapter, Listener listener) {
 		super(adapter);
 		this.listener = listener;
 		this.type = IResource.FILE;
 	}

 	public Control[] doFillIntoGrid(Composite parent, int nColumns) {
 		assertEnoughColumns(nColumns);
 		//initializeDialogUnits(parent);

 		Label label= getLabelControl(parent);
 		label.setLayoutData(gridDataForLabel(1));

 		getLinkCheckButtonControl(parent);

 		Text text= getTextControl(parent);
 		text.setLayoutData(gridDataForText(1));

 		Button browseButton = getBrowseButtonControl(parent);
 		browseButton.setLayoutData(gridDataForButton(browseButton, 1));

 		Button variablesButton = getVariablesButtonControl(parent);
 		variablesButton.setLayoutData(gridDataForButton(variablesButton, 1));

 		DialogField.createEmptySpace(parent);

 		resolvedPathLabelText = new Label(parent, SWT.SINGLE);
 		resolvedPathLabelText.setText(WorkbenchMessages.getString("CreateLinkedResourceGroup.resolvedPathLabel")); //$NON-NLS-1$
 		resolvedPathLabelText.setVisible(true);

 		resolvedPathLabelData = new Label(parent, SWT.SINGLE);
 		GridData data = new GridData(GridData.FILL_HORIZONTAL);
 		data.horizontalSpan = 3;
 		resolvedPathLabelData.setLayoutData(data);
 		resolvedPathLabelData.setVisible(true);

 		return null;
 	}

 	/*
 	 * @see DialogField#getNumberOfControls
 	 */
 	public int getNumberOfControls() {
 		return 5;
 	}

 	public Button getLinkCheckButtonControl(Composite parent){
 		if(linkButton == null){
 			linkButton = new Button(parent, SWT.CHECK);
 			linkButton.setText(NewWizardMessages.getString("NewClassWizardPage.files.linkFileButton")); //$NON-NLS-1$
 			linkButton.setSelection(createLink);
 			linkButton.setFont(parent.getFont());
 			SelectionListener selectionListener = new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent e) {
 					createLink = linkButton.getSelection();
 					browseButton.setEnabled(createLink);
 					variablesButton.setEnabled(createLink);
 					linkTargetField.setEnabled(createLink);
 					if (listener != null)
 						listener.handleEvent(new Event());
 				}
 			};
 			linkButton.addSelectionListener(selectionListener);
 		}
 		return linkButton;
 	}

 	public String getText() {
 		return linkTargetField.getText();
 	}

 	public void setText(String text) {
 		fText= text;
 		if (isOkToUse(linkTargetField)) {
 			linkTargetField.setText(text);
 		} else {
 			dialogFieldChanged();
 		}
 	}

 	public Text getTextControl(Composite parent){
 		if(linkTargetField == null){
 			assertCompositeNotNull(parent);
 			linkTargetField = new Text(parent, SWT.BORDER);
 			linkTargetField.setFont(parent.getFont());
 			linkTargetField.setEnabled(createLink);
 			linkTargetField.addModifyListener(new ModifyListener() {
 				public void modifyText(ModifyEvent e) {
 					resolveVariable();
 					if (listener != null)
 						listener.handleEvent(new Event());
 				}
 			});
 			if (initialLinkTarget != null)
 				linkTargetField.setText(initialLinkTarget);
 		}
 		return 	linkTargetField;
 	}

 	public static GridData gridDataForText(int span){
 		GridData data = new GridData();
 		data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
 		data.horizontalAlignment= GridData.FILL;
 		data.grabExcessHorizontalSpace= false;
 		data.horizontalSpan= span;
 		return data;
 	}

 	public Button getBrowseButtonControl(Composite parent){
 		// browse button
 		if(browseButton == null){
 			assertCompositeNotNull(parent);
 			browseButton = new Button(parent, SWT.PUSH);
 			//setButtonLayoutData(browseButton);
 			browseButton.setFont(parent.getFont());
 			browseButton.setText(WorkbenchMessages.getString("CreateLinkedResourceGroup.browseButton")); //$NON-NLS-1$
 			browseButton.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent event) {
 					handleLinkTargetBrowseButtonPressed();
 				}
 			});
 			browseButton.setEnabled(createLink);
 		}
 		return browseButton;
 	}

 	public Button getVariablesButtonControl(Composite parent){
 		// variables button
 		if(variablesButton == null){
 			assertCompositeNotNull(parent);
 			variablesButton = new Button(parent, SWT.PUSH);
 			//setButtonLayoutData(variablesButton);
 			variablesButton.setFont(parent.getFont());
 			variablesButton.setText(WorkbenchMessages.getString("CreateLinkedResourceGroup.variablesButton")); //$NON-NLS-1$
 			variablesButton.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent event) {
 					handleVariablesButtonPressed();
 				}
 			});
 			variablesButton.setEnabled(createLink);
 		}
 		return variablesButton;
 	}
 	/**
 	 * Returns a new status object with the given severity and message.
 	 *
 	 * @return a new status object with the given severity and message.
 	 */
 	private IStatus createStatus(int severity, String message) {
 		return new Status(
 			severity,
 			WorkbenchPlugin.getDefault().getDescriptor().getUniqueIdentifier(),
 			severity,
 			message,
 			null);
 	}
 	/**
 	 * Returns the link target location entered by the user.
 	 *
 	 * @return the link target location entered by the user. null if the user
 	 * 	chose not to create a link.
 	 */
 	public String getLinkTarget() {
 		if (createLink && linkTargetField != null && linkTargetField.isDisposed() == false)
 			return linkTargetField.getText();

 		return null;
 	}

 	public String getResolvedPath() {
 		if (createLink && resolvedPathLabelData != null && resolvedPathLabelData.isDisposed() == false)
 			return resolvedPathLabelData.getText();

 		return null;
 	}

 	/**
 	 * Opens a file or directory browser depending on the link type.
 	 */
 	protected void handleLinkTargetBrowseButtonPressed() {
 		String linkTargetName = linkTargetField.getText();
 		File file = null;
 		String selection = null;

 		if ("".equals(linkTargetName) == false) {	//$NON-NLS-1$
 			file = new File(linkTargetName);
 			if (file.exists() == false)
 				file = null;
 		}
 		if (type == IResource.FILE) {
 			FileDialog dialog = new FileDialog(linkTargetField.getShell());
 			if (file != null) {
 				if (file.isFile())
 					dialog.setFileName(linkTargetName);
 				else
 					dialog.setFilterPath(linkTargetName);
 			}
 			selection = dialog.open();
 		}
 		else {
 			DirectoryDialog dialog = new DirectoryDialog(linkTargetField.getShell());
 			if (file != null) {
 				if (file.isFile())
 					linkTargetName = file.getParent();
 				if (linkTargetName != null)
 					dialog.setFilterPath(linkTargetName);
 			}
 			dialog.setMessage(WorkbenchMessages.getString("CreateLinkedResourceGroup.targetSelectionLabel")); //$NON-NLS-1$
 			selection = dialog.open();
 		}
 		if (selection != null)
 			linkTargetField.setText(selection);
 	}
 	/**
 	 * Opens a path variable selection dialog
 	 */
 	protected void handleVariablesButtonPressed() {
 		int variableTypes = IResource.FOLDER;

 		// allow selecting file and folder variables when creating a
 		// linked file
 		if (type == IResource.FILE)
 			variableTypes |= IResource.FILE;

 		PathVariableSelectionDialog dialog =
 			new PathVariableSelectionDialog(linkTargetField.getShell(), variableTypes);
 		if (dialog.open() == IDialogConstants.OK_ID) {
 			String[] variableNames = (String[]) dialog.getResult();
 			if (variableNames != null && variableNames.length == 1)
 				linkTargetField.setText(variableNames[0]);
 		}
 	}
 	/**
 	 * Tries to resolve the value entered in the link target field as
 	 * a variable, if the value is a relative path.
 	 * Displays the resolved value if the entered value is a variable.
 	 */
 	protected void resolveVariable() {
 		if(!linkTargetField.isEnabled())
 			return;

 		IPathVariableManager pathVariableManager = ResourcesPlugin.getWorkspace().getPathVariableManager();
 		IPath path = new Path(linkTargetField.getText());
 		IPath resolvedPath = pathVariableManager.resolvePath(path);

 		/* (path.equals(resolvedPath)) {
 			resolvedPathLabelText.setVisible(false);
 			resolvedPathLabelData.setVisible(false);
 		} else {
 			resolvedPathLabelText.setVisible(true);
 			resolvedPathLabelData.setVisible(true);
 		}
 		*/
 		resolvedPathLabelData.setText(resolvedPath.toOSString());
 	}
 	/**
 	 * Sets the value of the link target field
 	 *
 	 * @param target the value of the link target field
 	 */
 	public void setLinkTarget(String target) {
 		initialLinkTarget = target;
 		if (linkTargetField != null && linkTargetField.isDisposed() == false)
 			linkTargetField.setText(target);
 	}
 	/**
 	 * Validates the type of the given file against the link type specified
 	 * in the constructor.
 	 *
 	 * @param linkTargetFile file to validate
 	 * @return IStatus indicating the validation result. IStatus.OK if the
 	 * 	given file is valid.
 	 */
 	private IStatus validateFileType(File linkTargetFile) {
 		if (type == IResource.FILE && linkTargetFile.isFile() == false) {
 			return createStatus(
 				IStatus.ERROR,
 				WorkbenchMessages.getString("CreateLinkedResourceGroup.linkTargetNotFile"));	//$NON-NLS-1$
 		} else if (type == IResource.FOLDER && linkTargetFile.isDirectory() == false) {
 			return createStatus(
 				IStatus.ERROR,
 				WorkbenchMessages.getString("CreateLinkedResourceGroup.linkTargetNotFolder"));	//$NON-NLS-1$
 		}
 		return createStatus(IStatus.OK, ""); //$NON-NLS-1$
 	}
 	/**
 	 * Validates this page's controls.
 	 *
 	 * @return IStatus indicating the validation result. IStatus.OK if the
 	 * 	specified link target is valid given the linkHandle.
 	 */
 	public IStatus validateLinkLocation(IResource linkHandle) {
 		if (linkTargetField == null || linkTargetField.isDisposed())
 			return createStatus(IStatus.OK, "");	//$NON-NLS-1$

 		IWorkspace workspace = ResourcesPlugin.getWorkspace();
 		String linkTargetName = linkTargetField.getText();
 		IPath path = new Path(linkTargetName);

 		if (createLink == false)
 			return createStatus(IStatus.OK, ""); //$NON-NLS-1$

 		IStatus locationStatus = workspace.validateLinkLocation(linkHandle,	path);
 		if (locationStatus.getSeverity() == IStatus.ERROR)
 			return locationStatus;

 		// use the resolved link target name
 		linkTargetName = resolvedPathLabelData.getText();
 		path = new Path(linkTargetName);
 		File linkTargetFile = new Path(linkTargetName).toFile();
 		if (linkTargetFile.exists()) {
 			IStatus fileTypeStatus = validateFileType(linkTargetFile);
 			if (fileTypeStatus.isOK() == false)
 				return fileTypeStatus;
 		} else if (locationStatus.getSeverity() == IStatus.OK) {
 			// locationStatus takes precedence over missing location warning.
 			return createStatus(
 				IStatus.WARNING,
 				WorkbenchMessages.getString("CreateLinkedResourceGroup.linkTargetNonExistent"));	//$NON-NLS-1$
 		}
 		return locationStatus;
 	}

 	public boolean linkCreated (){
 		return createLink;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2001 Rational Software Corp. and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Common Public License v0.5
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/cpl-v05.html
	*
	* Contributors:
	* Rational Software - initial implementation
	******************************************************************************/
	package org.eclipse.cdt.internal.ui.wizards.dialogfields;

	import java.io.File;

	import org.eclipse.cdt.internal.ui.wizards.NewWizardMessages;
	import org.eclipse.core.resources.IPathVariableManager;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.resources.IWorkspace;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.ModifyEvent;
	import org.eclipse.swt.events.ModifyListener;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.events.SelectionListener;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.DirectoryDialog;
	import org.eclipse.swt.widgets.Event;
	import org.eclipse.swt.widgets.FileDialog;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Listener;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.internal.WorkbenchMessages;
	import org.eclipse.ui.internal.WorkbenchPlugin;
	import org.eclipse.ui.internal.ide.dialogs.PathVariableSelectionDialog;

	/**
	*/
	public class LinkToFileGroup extends StringButtonDialogField {
	private String fText;
	protected Listener listener;
	private String initialLinkTarget;
	private int type;
	protected boolean createLink = false;

	// used to compute layout sizes
	//private FontMetrics fontMetrics;

	// widgets
	//private Composite groupComposite;
	protected Text linkTargetField;
	protected Button linkButton;
	protected Button browseButton;
	protected Button variablesButton;
	private Label resolvedPathLabelText;
	private Label resolvedPathLabelData;

	public LinkToFileGroup(IStringButtonAdapter adapter, Listener listener) {
	super(adapter);
	this.listener = listener;
	this.type = IResource.FILE;
	}

	public Control[] doFillIntoGrid(Composite parent, int nColumns) {
	assertEnoughColumns(nColumns);
	//initializeDialogUnits(parent);

	Label label= getLabelControl(parent);
	label.setLayoutData(gridDataForLabel(1));

	getLinkCheckButtonControl(parent);

	Text text= getTextControl(parent);
	text.setLayoutData(gridDataForText(1));

	Button browseButton = getBrowseButtonControl(parent);
	browseButton.setLayoutData(gridDataForButton(browseButton, 1));

	Button variablesButton = getVariablesButtonControl(parent);
	variablesButton.setLayoutData(gridDataForButton(variablesButton, 1));

	DialogField.createEmptySpace(parent);

	resolvedPathLabelText = new Label(parent, SWT.SINGLE);
	resolvedPathLabelText.setText(WorkbenchMessages.getString("CreateLinkedResourceGroup.resolvedPathLabel")); //$NON-NLS-1$
	resolvedPathLabelText.setVisible(true);

	resolvedPathLabelData = new Label(parent, SWT.SINGLE);
	GridData data = new GridData(GridData.FILL_HORIZONTAL);
	data.horizontalSpan = 3;
	resolvedPathLabelData.setLayoutData(data);
	resolvedPathLabelData.setVisible(true);

	return null;
	}

	/*
	* @see DialogField#getNumberOfControls
	*/
	public int getNumberOfControls() {
	return 5;
	}

	public Button getLinkCheckButtonControl(Composite parent){
	if(linkButton == null){
	linkButton = new Button(parent, SWT.CHECK);
	linkButton.setText(NewWizardMessages.getString("NewClassWizardPage.files.linkFileButton")); //$NON-NLS-1$
	linkButton.setSelection(createLink);
	linkButton.setFont(parent.getFont());
	SelectionListener selectionListener = new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	createLink = linkButton.getSelection();
	browseButton.setEnabled(createLink);
	variablesButton.setEnabled(createLink);
	linkTargetField.setEnabled(createLink);
	if (listener != null)
	listener.handleEvent(new Event());
	}
	};
	linkButton.addSelectionListener(selectionListener);
	}
	return linkButton;
	}

	public String getText() {
	return linkTargetField.getText();
	}

	public void setText(String text) {
	fText= text;
	if (isOkToUse(linkTargetField)) {
	linkTargetField.setText(text);
	} else {
	dialogFieldChanged();
	}
	}

	public Text getTextControl(Composite parent){
	if(linkTargetField == null){
	assertCompositeNotNull(parent);
	linkTargetField = new Text(parent, SWT.BORDER);
	linkTargetField.setFont(parent.getFont());
	linkTargetField.setEnabled(createLink);
	linkTargetField.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	resolveVariable();
	if (listener != null)
	listener.handleEvent(new Event());
	}
	});
	if (initialLinkTarget != null)
	linkTargetField.setText(initialLinkTarget);
	}
	return linkTargetField;
	}

	public static GridData gridDataForText(int span){
	GridData data = new GridData();
	data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
	data.horizontalAlignment= GridData.FILL;
	data.grabExcessHorizontalSpace= false;
	data.horizontalSpan= span;
	return data;
	}

	public Button getBrowseButtonControl(Composite parent){
	// browse button
	if(browseButton == null){
	assertCompositeNotNull(parent);
	browseButton = new Button(parent, SWT.PUSH);
	//setButtonLayoutData(browseButton);
	browseButton.setFont(parent.getFont());
	browseButton.setText(WorkbenchMessages.getString("CreateLinkedResourceGroup.browseButton")); //$NON-NLS-1$
	browseButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent event) {
	handleLinkTargetBrowseButtonPressed();
	}
	});
	browseButton.setEnabled(createLink);
	}
	return browseButton;
	}

	public Button getVariablesButtonControl(Composite parent){
	// variables button
	if(variablesButton == null){
	assertCompositeNotNull(parent);
	variablesButton = new Button(parent, SWT.PUSH);
	//setButtonLayoutData(variablesButton);
	variablesButton.setFont(parent.getFont());
	variablesButton.setText(WorkbenchMessages.getString("CreateLinkedResourceGroup.variablesButton")); //$NON-NLS-1$
	variablesButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent event) {
	handleVariablesButtonPressed();
	}
	});
	variablesButton.setEnabled(createLink);
	}
	return variablesButton;
	}
	/**
	* Returns a new status object with the given severity and message.
	*
	* @return a new status object with the given severity and message.
	*/
	private IStatus createStatus(int severity, String message) {
	return new Status(
	severity,
	WorkbenchPlugin.getDefault().getDescriptor().getUniqueIdentifier(),
	severity,
	message,
	null);
	}
	/**
	* Returns the link target location entered by the user.
	*
	* @return the link target location entered by the user. null if the user
	* chose not to create a link.
	*/
	public String getLinkTarget() {
	if (createLink && linkTargetField != null && linkTargetField.isDisposed() == false)
	return linkTargetField.getText();

	return null;
	}

	public String getResolvedPath() {
	if (createLink && resolvedPathLabelData != null && resolvedPathLabelData.isDisposed() == false)
	return resolvedPathLabelData.getText();

	return null;
	}

	/**
	* Opens a file or directory browser depending on the link type.
	*/
	protected void handleLinkTargetBrowseButtonPressed() {
	String linkTargetName = linkTargetField.getText();
	File file = null;
	String selection = null;

	if ("".equals(linkTargetName) == false) { //$NON-NLS-1$
	file = new File(linkTargetName);
	if (file.exists() == false)
	file = null;
	}
	if (type == IResource.FILE) {
	FileDialog dialog = new FileDialog(linkTargetField.getShell());
	if (file != null) {
	if (file.isFile())
	dialog.setFileName(linkTargetName);
	else
	dialog.setFilterPath(linkTargetName);
	}
	selection = dialog.open();
	}
	else {
	DirectoryDialog dialog = new DirectoryDialog(linkTargetField.getShell());
	if (file != null) {
	if (file.isFile())
	linkTargetName = file.getParent();
	if (linkTargetName != null)
	dialog.setFilterPath(linkTargetName);
	}
	dialog.setMessage(WorkbenchMessages.getString("CreateLinkedResourceGroup.targetSelectionLabel")); //$NON-NLS-1$
	selection = dialog.open();
	}
	if (selection != null)
	linkTargetField.setText(selection);
	}
	/**
	* Opens a path variable selection dialog
	*/
	protected void handleVariablesButtonPressed() {
	int variableTypes = IResource.FOLDER;

	// allow selecting file and folder variables when creating a
	// linked file
	if (type == IResource.FILE)
	variableTypes \|= IResource.FILE;

	PathVariableSelectionDialog dialog =
	new PathVariableSelectionDialog(linkTargetField.getShell(), variableTypes);
	if (dialog.open() == IDialogConstants.OK_ID) {
	String[] variableNames = (String[]) dialog.getResult();
	if (variableNames != null && variableNames.length == 1)
	linkTargetField.setText(variableNames[0]);
	}
	}
	/**
	* Tries to resolve the value entered in the link target field as
	* a variable, if the value is a relative path.
	* Displays the resolved value if the entered value is a variable.
	*/
	protected void resolveVariable() {
	if(!linkTargetField.isEnabled())
	return;

	IPathVariableManager pathVariableManager = ResourcesPlugin.getWorkspace().getPathVariableManager();
	IPath path = new Path(linkTargetField.getText());
	IPath resolvedPath = pathVariableManager.resolvePath(path);

	/* (path.equals(resolvedPath)) {
	resolvedPathLabelText.setVisible(false);
	resolvedPathLabelData.setVisible(false);
	} else {
	resolvedPathLabelText.setVisible(true);
	resolvedPathLabelData.setVisible(true);
	}
	*/
	resolvedPathLabelData.setText(resolvedPath.toOSString());
	}
	/**
	* Sets the value of the link target field
	*
	* @param target the value of the link target field
	*/
	public void setLinkTarget(String target) {
	initialLinkTarget = target;
	if (linkTargetField != null && linkTargetField.isDisposed() == false)
	linkTargetField.setText(target);
	}
	/**
	* Validates the type of the given file against the link type specified
	* in the constructor.
	*
	* @param linkTargetFile file to validate
	* @return IStatus indicating the validation result. IStatus.OK if the
	* given file is valid.
	*/
	private IStatus validateFileType(File linkTargetFile) {
	if (type == IResource.FILE && linkTargetFile.isFile() == false) {
	return createStatus(
	IStatus.ERROR,
	WorkbenchMessages.getString("CreateLinkedResourceGroup.linkTargetNotFile")); //$NON-NLS-1$
	} else if (type == IResource.FOLDER && linkTargetFile.isDirectory() == false) {
	return createStatus(
	IStatus.ERROR,
	WorkbenchMessages.getString("CreateLinkedResourceGroup.linkTargetNotFolder")); //$NON-NLS-1$
	}
	return createStatus(IStatus.OK, ""); //$NON-NLS-1$
	}
	/**
	* Validates this page's controls.
	*
	* @return IStatus indicating the validation result. IStatus.OK if the
	* specified link target is valid given the linkHandle.
	*/
	public IStatus validateLinkLocation(IResource linkHandle) {
	if (linkTargetField == null \|\| linkTargetField.isDisposed())
	return createStatus(IStatus.OK, ""); //$NON-NLS-1$

	IWorkspace workspace = ResourcesPlugin.getWorkspace();
	String linkTargetName = linkTargetField.getText();
	IPath path = new Path(linkTargetName);

	if (createLink == false)
	return createStatus(IStatus.OK, ""); //$NON-NLS-1$

	IStatus locationStatus = workspace.validateLinkLocation(linkHandle, path);
	if (locationStatus.getSeverity() == IStatus.ERROR)
	return locationStatus;

	// use the resolved link target name
	linkTargetName = resolvedPathLabelData.getText();
	path = new Path(linkTargetName);
	File linkTargetFile = new Path(linkTargetName).toFile();
	if (linkTargetFile.exists()) {
	IStatus fileTypeStatus = validateFileType(linkTargetFile);
	if (fileTypeStatus.isOK() == false)
	return fileTypeStatus;
	} else if (locationStatus.getSeverity() == IStatus.OK) {
	// locationStatus takes precedence over missing location warning.
	return createStatus(
	IStatus.WARNING,
	WorkbenchMessages.getString("CreateLinkedResourceGroup.linkTargetNonExistent")); //$NON-NLS-1$
	}
	return locationStatus;
	}

	public boolean linkCreated (){
	return createLink;
	}
	}