core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/wizards/NewCProjectWizardPage.java - cdt/org.eclipse.cdt - Git at Google

 package org.eclipse.cdt.ui.wizards;

 /*
  * (c) Copyright IBM Corp. 2000, 2001.
  * All Rights Reserved.
  */

 import java.io.File;

 import org.eclipse.cdt.ui.CUIPlugin;
 import org.eclipse.core.resources.IProject;
 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.Platform;
 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.events.SelectionListener;
 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.DirectoryDialog;
 import org.eclipse.swt.widgets.Event;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.help.WorkbenchHelp;
 import org.eclipse.ui.internal.IHelpContextIds;

 /**
  * Standard main page for a wizard that is creates a project resource.
  * <p>
  * This page may be used by clients as-is; it may be also be subclassed to suit.
  * </p>
  * <p>
  * Example useage:
  * <pre>
  * mainPage = new CProjectWizardPage("basicCProjectPage");
  * mainPage.setTitle("Project");
  * mainPage.setDescription("Create a new project resource.");
  * </pre>
  * </p>
  */
 public class NewCProjectWizardPage extends WizardPage {

 	protected boolean useDefaults = true;

 	// initial value stores
 	private String initialProjectFieldValue;
 	private IPath initialLocationFieldValue;

 	// widgets
 	private Text projectNameField;
 	protected Text locationPathField;
 	protected Label locationLabel;
 	protected Button browseButton;

 	private Listener nameModifyListener = new Listener() {
 		public void handleEvent(Event e) {
 			setLocationForSelection();
 			setPageComplete(validatePage());
 		}
 	};

 	private Listener locationModifyListener = new Listener() {
 		public void handleEvent(Event e) {
 			setPageComplete(validatePage());
 		}
 	};

 	// constants
 	private static final int SIZING_TEXT_FIELD_WIDTH = 250;

 	/** (non-Javadoc)
 	 * Method declared on IDialogPage.
 	 */
 	public void createControl(Composite parent) {
 		Composite composite = new Composite(parent, SWT.NULL);

 		WorkbenchHelp.setHelp(composite, IHelpContextIds.NEW_PROJECT_WIZARD_PAGE);

 		composite.setLayout(new GridLayout());
 		composite.setLayoutData(new GridData(GridData.FILL_BOTH));

 		createProjectNameGroup(composite);
 		createProjectLocationGroup(composite);
 		projectNameField.setFocus();
 		validatePage();
 		// Show description on opening
 		setErrorMessage(null);
 		setMessage(null);
 		setControl(composite);
 	}

 	/**
 	 * Creates the project location specification controls.
 	 *
 	 * @param parent the parent composite
 	 */
 	private final void createProjectLocationGroup(Composite parent) {

 		// project specification group
 		Composite projectGroup = new Composite(parent,SWT.NONE);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 3;
 		projectGroup.setLayout(layout);
 		projectGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

 		final Button useDefaultsButton = new Button(projectGroup, SWT.CHECK | SWT.RIGHT);
 		useDefaultsButton.setText(CUIPlugin.getResourceString("CProjectWizardPage.useDefaultLabel")); //$NON-NLS-1$
 		useDefaultsButton.setSelection(this.useDefaults);

 		GridData buttonData = new GridData();
 		buttonData.horizontalSpan = 3;
 		useDefaultsButton.setLayoutData(buttonData);

 		createUserSpecifiedProjectLocationGroup(projectGroup,!this.useDefaults);

 		SelectionListener listener = new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				useDefaults = useDefaultsButton.getSelection();
 				browseButton.setEnabled(!useDefaults);
 				locationPathField.setEnabled(!useDefaults);
 				locationLabel.setEnabled(!useDefaults);
 				setLocationForSelection();
 				if (!useDefaults)
 					locationPathField.setText(""); //$NON-NLS-1$
 			}
 		};
 		useDefaultsButton.addSelectionListener(listener);
 	}

 	/**
 	 * Creates the project name specification controls.
 	 *
 	 * @param parent the parent composite
 	 */
 	private final void createProjectNameGroup(Composite parent) {
 		// project specification group
 		Composite projectGroup = new Composite(parent,SWT.NONE);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 2;
 		projectGroup.setLayout(layout);
 		projectGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

 		// new project label
 		Label projectLabel = new Label(projectGroup,SWT.NONE);
 		projectLabel.setText(CUIPlugin.getResourceString("CProjectWizardPage.nameLabel")); //$NON-NLS-1$

 		// new project name entry field
 		projectNameField = new Text(projectGroup, SWT.BORDER);
 		GridData data = new GridData(GridData.FILL_HORIZONTAL);
 		data.widthHint = SIZING_TEXT_FIELD_WIDTH;
 		projectNameField.setLayoutData(data);

 		// Set the initial value first before listener
 		// to avoid handling an event during the creation.
 		if (initialProjectFieldValue != null)
 			projectNameField.setText(initialProjectFieldValue);
 		projectNameField.addListener(SWT.Modify, nameModifyListener);
 		projectNameField.setVisible(true);
 	}

 	/**
 	 * Creates the project location specification controls.
 	 *
 	 * @param projectGroup the parent composite
 	 * @param boolean - the initial enabled state of the widgets created
 	 */
 	private void createUserSpecifiedProjectLocationGroup(Composite projectGroup, boolean enabled) {

 		// location label
 		locationLabel = new Label(projectGroup,SWT.NONE);
 		locationLabel.setText(CUIPlugin.getResourceString("CProjectWizardPage.locationLabel")); //$NON-NLS-1$
 		locationLabel.setEnabled(enabled);

 		// project location entry field
 		locationPathField = new Text(projectGroup, SWT.BORDER);
 		GridData data = new GridData(GridData.FILL_HORIZONTAL);
 		data.widthHint = SIZING_TEXT_FIELD_WIDTH;
 		locationPathField.setLayoutData(data);
 		locationPathField.setEnabled(enabled);

 		// browse button
 		browseButton = new Button(projectGroup, SWT.PUSH);
 		browseButton.setText(CUIPlugin.getResourceString("CProjectWizardPage.browseLabel")); //$NON-NLS-1$
 		browseButton.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent event) {
 				handleLocationBrowseButtonPressed();
 			}
 		});

 		browseButton.setEnabled(enabled);

 		// Set the initial value first before listener
 		// to avoid handling an event during the creation.
 		if (initialLocationFieldValue != null)
 			locationPathField.setText(initialLocationFieldValue.toOSString());
 		locationPathField.addListener(SWT.Modify, locationModifyListener);
 	}

 	/**
 	 * Returns the current project location path as entered by
 	 * the user, or its anticipated initial value.
 	 *
 	 * @return the project location path, its anticipated initial value, or <code>null</code>
 	 *   if no project location path is known
 	 */
 	public IPath getLocationPath() {
 		if (useDefaults)
 			return initialLocationFieldValue;

 		return new Path(locationPathField.getText());
 	}

 	/**
 	 * Creates a project resource handle for the current project name field value.
 	 * <p>
 	 * This method does not create the project resource; this is the responsibility
 	 * of <code>IProject::create</code> invoked by the new project resource wizard.
 	 * </p>
 	 *
 	 * @return the new project resource handle
 	 */
 	public IProject getProjectHandle() {
 		return ResourcesPlugin.getWorkspace().getRoot().getProject(getProjectName());
 	}

 	/**
 	 * Returns the current project name as entered by the user, or its anticipated
 	 * initial value.
 	 *
 	 * @return the project name, its anticipated initial value, or <code>null</code>
 	 *   if no project name is known
 	 */
 	public String getProjectName() {
 		if (projectNameField == null)
 			return initialProjectFieldValue;

 		return projectNameField.getText();
 	}

 	/**
 	 *	Open an appropriate directory browser
 	 */
 	protected void handleLocationBrowseButtonPressed() {
 		DirectoryDialog dialog = new DirectoryDialog(locationPathField.getShell());
 		dialog.setMessage(CUIPlugin.getResourceString("CProjectWizardPage.directoryLabel")); //$NON-NLS-1$

 		String dirName = locationPathField.getText();
 		if (!dirName.equals("")) {//$NON-NLS-1$
 			File path = new File(dirName);
 			if (path.exists())
 				dialog.setFilterPath(dirName);
 		}

 		String selectedDirectory = dialog.open();
 		if (selectedDirectory != null)
 			locationPathField.setText(selectedDirectory);
 	}

 	/**
 	 * Creates a new project creation wizard page.
 	 *
 	 * @param pageName the name of this page
 	 */
 	public NewCProjectWizardPage(String pageName) {
 		super(pageName);
 		setPageComplete(false);
 		this.initialLocationFieldValue = Platform.getLocation();
 	}

 	/**
 	 * Set the location to the default location if we are set to useDefaults.
 	 */
 	protected void setLocationForSelection() {
 		if (useDefaults) {
 			IPath defaultPath = Platform.getLocation().append(projectNameField.getText());
 			locationPathField.setText(defaultPath.toOSString());
 		}
 	}

 	/**
 	 * Returns whether this page's controls currently all contain valid
 	 * values.
 	 *
 	 * @return <code>true</code> if all controls are valid, and
 	 *   <code>false</code> if at least one is invalid
 	 */
 	protected boolean validatePage() {
 		IWorkspace workspace = ResourcesPlugin.getWorkspace();

 		String projectFieldContents = projectNameField.getText();
 		if (projectFieldContents.equals("")) { //$NON-NLS-1$
 			setErrorMessage(null);
 			setMessage(CUIPlugin.getResourceString("CProjectWizardPage.projectNameEmpty")); //$NON-NLS-1$
 			return false;
 		}

 		// Give a chance to the wizard to do its own validation
 		IStatus validName = ((NewCProjectWizard)getWizard()).isValidName(projectFieldContents);
 		if (!validName.isOK()) {
 			setErrorMessage(validName.getMessage());
 			return false;
 		}

 		IStatus nameStatus =
 			workspace.validateName(projectFieldContents, IResource.PROJECT);
 		if (!nameStatus.isOK()) {
 			setErrorMessage(nameStatus.getMessage());
 			return false;
 		}

 		String locationFieldContents = locationPathField.getText();

 		if (!locationFieldContents.equals("")) {//$NON-NLS-1$
 			// Give a chance to the wizard to do its own validation
 			IStatus validLocation = ((NewCProjectWizard)getWizard()).isValidLocation(projectFieldContents);
 			if (!validLocation.isOK()) {
 				setErrorMessage(validLocation.getMessage());
 				return false;
 			}

 			IPath path = new Path("");//$NON-NLS-1$
 			if (!path.isValidPath(locationFieldContents)) {
 				setErrorMessage(CUIPlugin.getResourceString("CProjectWizardPage.locationError")); //$NON-NLS-1$
 				return false;
 			}
 			if (!useDefaults && Platform.getLocation().isPrefixOf(new Path(locationFieldContents))) {
 				setErrorMessage(CUIPlugin.getResourceString("CProjectWizardPage.defaultLocationError")); //$NON-NLS-1$
 				return false;
 			}
 		}

 		if (getProjectHandle().exists()) {
 			setErrorMessage(CUIPlugin.getResourceString("CProjectWizardPage.projectExistsMessage")); //$NON-NLS-1$
 			return false;
 		}

 		setErrorMessage(null);
 		setMessage(null);
 		return true;
 	}
 }
	package org.eclipse.cdt.ui.wizards;

	/*
	* (c) Copyright IBM Corp. 2000, 2001.
	* All Rights Reserved.
	*/

	import java.io.File;

	import org.eclipse.cdt.ui.CUIPlugin;
	import org.eclipse.core.resources.IProject;
	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.Platform;
	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.events.SelectionListener;
	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.DirectoryDialog;
	import org.eclipse.swt.widgets.Event;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Listener;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.help.WorkbenchHelp;
	import org.eclipse.ui.internal.IHelpContextIds;

	/**
	* Standard main page for a wizard that is creates a project resource.
	* <p>
	* This page may be used by clients as-is; it may be also be subclassed to suit.
	* </p>
	* <p>
	* Example useage:
	* <pre>
	* mainPage = new CProjectWizardPage("basicCProjectPage");
	* mainPage.setTitle("Project");
	* mainPage.setDescription("Create a new project resource.");
	* </pre>
	* </p>
	*/
	public class NewCProjectWizardPage extends WizardPage {

	protected boolean useDefaults = true;

	// initial value stores
	private String initialProjectFieldValue;
	private IPath initialLocationFieldValue;

	// widgets
	private Text projectNameField;
	protected Text locationPathField;
	protected Label locationLabel;
	protected Button browseButton;

	private Listener nameModifyListener = new Listener() {
	public void handleEvent(Event e) {
	setLocationForSelection();
	setPageComplete(validatePage());
	}
	};

	private Listener locationModifyListener = new Listener() {
	public void handleEvent(Event e) {
	setPageComplete(validatePage());
	}
	};

	// constants
	private static final int SIZING_TEXT_FIELD_WIDTH = 250;

	/** (non-Javadoc)
	* Method declared on IDialogPage.
	*/
	public void createControl(Composite parent) {
	Composite composite = new Composite(parent, SWT.NULL);

	WorkbenchHelp.setHelp(composite, IHelpContextIds.NEW_PROJECT_WIZARD_PAGE);

	composite.setLayout(new GridLayout());
	composite.setLayoutData(new GridData(GridData.FILL_BOTH));

	createProjectNameGroup(composite);
	createProjectLocationGroup(composite);
	projectNameField.setFocus();
	validatePage();
	// Show description on opening
	setErrorMessage(null);
	setMessage(null);
	setControl(composite);
	}

	/**
	* Creates the project location specification controls.
	*
	* @param parent the parent composite
	*/
	private final void createProjectLocationGroup(Composite parent) {

	// project specification group
	Composite projectGroup = new Composite(parent,SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 3;
	projectGroup.setLayout(layout);
	projectGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

	final Button useDefaultsButton = new Button(projectGroup, SWT.CHECK \| SWT.RIGHT);
	useDefaultsButton.setText(CUIPlugin.getResourceString("CProjectWizardPage.useDefaultLabel")); //$NON-NLS-1$
	useDefaultsButton.setSelection(this.useDefaults);

	GridData buttonData = new GridData();
	buttonData.horizontalSpan = 3;
	useDefaultsButton.setLayoutData(buttonData);

	createUserSpecifiedProjectLocationGroup(projectGroup,!this.useDefaults);

	SelectionListener listener = new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	useDefaults = useDefaultsButton.getSelection();
	browseButton.setEnabled(!useDefaults);
	locationPathField.setEnabled(!useDefaults);
	locationLabel.setEnabled(!useDefaults);
	setLocationForSelection();
	if (!useDefaults)
	locationPathField.setText(""); //$NON-NLS-1$
	}
	};
	useDefaultsButton.addSelectionListener(listener);
	}

	/**
	* Creates the project name specification controls.
	*
	* @param parent the parent composite
	*/
	private final void createProjectNameGroup(Composite parent) {
	// project specification group
	Composite projectGroup = new Composite(parent,SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	projectGroup.setLayout(layout);
	projectGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

	// new project label
	Label projectLabel = new Label(projectGroup,SWT.NONE);
	projectLabel.setText(CUIPlugin.getResourceString("CProjectWizardPage.nameLabel")); //$NON-NLS-1$

	// new project name entry field
	projectNameField = new Text(projectGroup, SWT.BORDER);
	GridData data = new GridData(GridData.FILL_HORIZONTAL);
	data.widthHint = SIZING_TEXT_FIELD_WIDTH;
	projectNameField.setLayoutData(data);

	// Set the initial value first before listener
	// to avoid handling an event during the creation.
	if (initialProjectFieldValue != null)
	projectNameField.setText(initialProjectFieldValue);
	projectNameField.addListener(SWT.Modify, nameModifyListener);
	projectNameField.setVisible(true);
	}

	/**
	* Creates the project location specification controls.
	*
	* @param projectGroup the parent composite
	* @param boolean - the initial enabled state of the widgets created
	*/
	private void createUserSpecifiedProjectLocationGroup(Composite projectGroup, boolean enabled) {

	// location label
	locationLabel = new Label(projectGroup,SWT.NONE);
	locationLabel.setText(CUIPlugin.getResourceString("CProjectWizardPage.locationLabel")); //$NON-NLS-1$
	locationLabel.setEnabled(enabled);

	// project location entry field
	locationPathField = new Text(projectGroup, SWT.BORDER);
	GridData data = new GridData(GridData.FILL_HORIZONTAL);
	data.widthHint = SIZING_TEXT_FIELD_WIDTH;
	locationPathField.setLayoutData(data);
	locationPathField.setEnabled(enabled);

	// browse button
	browseButton = new Button(projectGroup, SWT.PUSH);
	browseButton.setText(CUIPlugin.getResourceString("CProjectWizardPage.browseLabel")); //$NON-NLS-1$
	browseButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent event) {
	handleLocationBrowseButtonPressed();
	}
	});

	browseButton.setEnabled(enabled);

	// Set the initial value first before listener
	// to avoid handling an event during the creation.
	if (initialLocationFieldValue != null)
	locationPathField.setText(initialLocationFieldValue.toOSString());
	locationPathField.addListener(SWT.Modify, locationModifyListener);
	}

	/**
	* Returns the current project location path as entered by
	* the user, or its anticipated initial value.
	*
	* @return the project location path, its anticipated initial value, or <code>null</code>
	* if no project location path is known
	*/
	public IPath getLocationPath() {
	if (useDefaults)
	return initialLocationFieldValue;

	return new Path(locationPathField.getText());
	}

	/**
	* Creates a project resource handle for the current project name field value.
	* <p>
	* This method does not create the project resource; this is the responsibility
	* of <code>IProject::create</code> invoked by the new project resource wizard.
	* </p>
	*
	* @return the new project resource handle
	*/
	public IProject getProjectHandle() {
	return ResourcesPlugin.getWorkspace().getRoot().getProject(getProjectName());
	}

	/**
	* Returns the current project name as entered by the user, or its anticipated
	* initial value.
	*
	* @return the project name, its anticipated initial value, or <code>null</code>
	* if no project name is known
	*/
	public String getProjectName() {
	if (projectNameField == null)
	return initialProjectFieldValue;

	return projectNameField.getText();
	}

	/**
	* Open an appropriate directory browser
	*/
	protected void handleLocationBrowseButtonPressed() {
	DirectoryDialog dialog = new DirectoryDialog(locationPathField.getShell());
	dialog.setMessage(CUIPlugin.getResourceString("CProjectWizardPage.directoryLabel")); //$NON-NLS-1$

	String dirName = locationPathField.getText();
	if (!dirName.equals("")) {//$NON-NLS-1$
	File path = new File(dirName);
	if (path.exists())
	dialog.setFilterPath(dirName);
	}

	String selectedDirectory = dialog.open();
	if (selectedDirectory != null)
	locationPathField.setText(selectedDirectory);
	}

	/**
	* Creates a new project creation wizard page.
	*
	* @param pageName the name of this page
	*/
	public NewCProjectWizardPage(String pageName) {
	super(pageName);
	setPageComplete(false);
	this.initialLocationFieldValue = Platform.getLocation();
	}

	/**
	* Set the location to the default location if we are set to useDefaults.
	*/
	protected void setLocationForSelection() {
	if (useDefaults) {
	IPath defaultPath = Platform.getLocation().append(projectNameField.getText());
	locationPathField.setText(defaultPath.toOSString());
	}
	}

	/**
	* Returns whether this page's controls currently all contain valid
	* values.
	*
	* @return <code>true</code> if all controls are valid, and
	* <code>false</code> if at least one is invalid
	*/
	protected boolean validatePage() {
	IWorkspace workspace = ResourcesPlugin.getWorkspace();

	String projectFieldContents = projectNameField.getText();
	if (projectFieldContents.equals("")) { //$NON-NLS-1$
	setErrorMessage(null);
	setMessage(CUIPlugin.getResourceString("CProjectWizardPage.projectNameEmpty")); //$NON-NLS-1$
	return false;
	}

	// Give a chance to the wizard to do its own validation
	IStatus validName = ((NewCProjectWizard)getWizard()).isValidName(projectFieldContents);
	if (!validName.isOK()) {
	setErrorMessage(validName.getMessage());
	return false;
	}

	IStatus nameStatus =
	workspace.validateName(projectFieldContents, IResource.PROJECT);
	if (!nameStatus.isOK()) {
	setErrorMessage(nameStatus.getMessage());
	return false;
	}

	String locationFieldContents = locationPathField.getText();

	if (!locationFieldContents.equals("")) {//$NON-NLS-1$
	// Give a chance to the wizard to do its own validation
	IStatus validLocation = ((NewCProjectWizard)getWizard()).isValidLocation(projectFieldContents);
	if (!validLocation.isOK()) {
	setErrorMessage(validLocation.getMessage());
	return false;
	}

	IPath path = new Path("");//$NON-NLS-1$
	if (!path.isValidPath(locationFieldContents)) {
	setErrorMessage(CUIPlugin.getResourceString("CProjectWizardPage.locationError")); //$NON-NLS-1$
	return false;
	}
	if (!useDefaults && Platform.getLocation().isPrefixOf(new Path(locationFieldContents))) {
	setErrorMessage(CUIPlugin.getResourceString("CProjectWizardPage.defaultLocationError")); //$NON-NLS-1$
	return false;
	}
	}

	if (getProjectHandle().exists()) {
	setErrorMessage(CUIPlugin.getResourceString("CProjectWizardPage.projectExistsMessage")); //$NON-NLS-1$
	return false;
	}

	setErrorMessage(null);
	setMessage(null);
	return true;
	}
	}