core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/wizards/folderwizard/NewSourceFolderWizardPage.java - cdt/org.eclipse.cdt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2015 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.cdt.internal.ui.wizards.folderwizard;

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

 import org.eclipse.core.resources.IFolder;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IWorkspaceRoot;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.core.runtime.SubMonitor;
 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.viewers.ILabelProvider;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.ITreeContentProvider;
 import org.eclipse.jface.viewers.ViewerFilter;
 import org.eclipse.jface.window.Window;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.dialogs.ElementListSelectionDialog;
 import org.eclipse.ui.dialogs.ElementTreeSelectionDialog;
 import org.eclipse.ui.dialogs.ISelectionStatusValidator;
 import org.eclipse.ui.model.WorkbenchContentProvider;
 import org.eclipse.ui.model.WorkbenchLabelProvider;
 import org.eclipse.ui.views.navigator.ResourceComparator;

 import org.eclipse.cdt.core.CCProjectNature;
 import org.eclipse.cdt.core.CCorePlugin;
 import org.eclipse.cdt.core.CProjectNature;
 import org.eclipse.cdt.core.model.CModelException;
 import org.eclipse.cdt.core.model.CoreModel;
 import org.eclipse.cdt.core.model.ICElement;
 import org.eclipse.cdt.core.model.ICModelStatus;
 import org.eclipse.cdt.core.model.ICProject;
 import org.eclipse.cdt.core.model.IPathEntry;
 import org.eclipse.cdt.core.model.ISourceRoot;
 import org.eclipse.cdt.ui.CElementLabelProvider;
 import org.eclipse.cdt.ui.CUIPlugin;

 import org.eclipse.cdt.internal.core.model.InternalCoreModelUtil;
 import org.eclipse.cdt.internal.core.model.PathEntryManager;

 import org.eclipse.cdt.internal.ui.ICHelpContextIds;
 import org.eclipse.cdt.internal.ui.dialogs.StatusInfo;
 import org.eclipse.cdt.internal.ui.dialogs.TypedElementSelectionValidator;
 import org.eclipse.cdt.internal.ui.dialogs.TypedViewerFilter;
 import org.eclipse.cdt.internal.ui.util.CoreUtility;
 import org.eclipse.cdt.internal.ui.util.EditorUtility;
 import org.eclipse.cdt.internal.ui.wizards.NewElementWizardPage;
 import org.eclipse.cdt.internal.ui.wizards.dialogfields.DialogField;
 import org.eclipse.cdt.internal.ui.wizards.dialogfields.IDialogFieldListener;
 import org.eclipse.cdt.internal.ui.wizards.dialogfields.IStringButtonAdapter;
 import org.eclipse.cdt.internal.ui.wizards.dialogfields.LayoutUtil;
 import org.eclipse.cdt.internal.ui.wizards.dialogfields.SelectionButtonDialogField;
 import org.eclipse.cdt.internal.ui.wizards.dialogfields.StringButtonDialogField;

 public class NewSourceFolderWizardPage extends NewElementWizardPage {
 	private static final String PAGE_NAME= "NewSourceFolderWizardPage"; //$NON-NLS-1$

 	private StringButtonDialogField fProjectField;
 	private StatusInfo fProjectStatus;

 	private StringButtonDialogField fRootDialogField;
 	private StatusInfo fRootStatus;

 	private SelectionButtonDialogField fExcludeInOthersFields;

 	private IWorkspaceRoot fWorkspaceRoot;

 	private ICProject fCurrCProject;
 	private IPathEntry[] fEntries;

 	private IPathEntry[] fNewEntries;

 	private boolean fIsProjectAsSourceFolder;

 	private ISourceRoot fCreatedRoot;

 	public NewSourceFolderWizardPage() {
 		super(PAGE_NAME);

 		setTitle(NewFolderWizardMessages.NewSourceFolderWizardPage_title);
 		setDescription(NewFolderWizardMessages.NewSourceFolderWizardPage_description);

 		fWorkspaceRoot= ResourcesPlugin.getWorkspace().getRoot();

 		RootFieldAdapter adapter= new RootFieldAdapter();

 		fProjectField= new StringButtonDialogField(adapter);
 		fProjectField.setDialogFieldListener(adapter);
 		fProjectField.setLabelText(NewFolderWizardMessages.NewSourceFolderWizardPage_project_label);
 		fProjectField.setButtonLabel(NewFolderWizardMessages.NewSourceFolderWizardPage_project_button);

 		fRootDialogField= new StringButtonDialogField(adapter);
 		fRootDialogField.setDialogFieldListener(adapter);
 		fRootDialogField.setLabelText(NewFolderWizardMessages.NewSourceFolderWizardPage_root_label);
 		fRootDialogField.setButtonLabel(NewFolderWizardMessages.NewSourceFolderWizardPage_root_button);

 		fExcludeInOthersFields= new SelectionButtonDialogField(SWT.CHECK);
 		fExcludeInOthersFields.setDialogFieldListener(adapter);
 		fExcludeInOthersFields.setLabelText(NewFolderWizardMessages.NewSourceFolderWizardPage_exclude_label);

 		fRootStatus= new StatusInfo();
 		fProjectStatus= new StatusInfo();
 	}

 	// -------- Initialization ---------

 	public void init(IStructuredSelection selection) {
 		if (selection == null || selection.isEmpty()) {
 			setDefaultAttributes();
 			return;
 		}

 		Object selectedElement= selection.getFirstElement();
 		if (selectedElement == null) {
 			selectedElement= EditorUtility.getActiveEditorCInput();
 		}

 		String projPath= null;

 		if (selectedElement instanceof IResource) {
 			IProject proj= ((IResource) selectedElement).getProject();
 			if (proj != null) {
 				projPath= proj.getFullPath().makeRelative().toString();
 			}
 		} else if (selectedElement instanceof ICElement) {
 			ICProject jproject= ((ICElement) selectedElement).getCProject();
 			if (jproject != null) {
 				projPath= jproject.getProject().getFullPath().makeRelative().toString();
 			}
 		}

 		if (projPath != null) {
 			fProjectField.setText(projPath);
 			fRootDialogField.setText(""); //$NON-NLS-1$
 		} else {
 			setDefaultAttributes();
 		}
 	}

 	private void setDefaultAttributes() {
 		String projPath= ""; //$NON-NLS-1$

 		try {
 			// find the first C project
 			IProject[] projects= fWorkspaceRoot.getProjects();
 			for (IProject proj : projects) {
 				if (proj.hasNature(CProjectNature.C_NATURE_ID) || proj.hasNature(CCProjectNature.CC_NATURE_ID)) {
 					projPath= proj.getFullPath().makeRelative().toString();
 					break;
 				}
 			}
 		} catch (CoreException e) {
 			// ignore here
 		}
 		fProjectField.setText(projPath);
 		fRootDialogField.setText("");		 //$NON-NLS-1$
 	}

 	// -------- UI Creation ---------

 	@Override
 	public void createControl(Composite parent) {
 		initializeDialogUnits(parent);

 		Composite composite= new Composite(parent, SWT.NONE);

 		GridLayout layout= new GridLayout();
 		layout.marginWidth= 0;
 		layout.marginHeight= 0;
 		layout.numColumns= 3;
 		composite.setLayout(layout);

 		fProjectField.doFillIntoGrid(composite, 3);
 		fRootDialogField.doFillIntoGrid(composite, 3);
 		fExcludeInOthersFields.doFillIntoGrid(composite, 3);

 		int maxFieldWidth= convertWidthInCharsToPixels(40);
 		LayoutUtil.setWidthHint(fProjectField.getTextControl(null), maxFieldWidth);
 		LayoutUtil.setHorizontalGrabbing(fProjectField.getTextControl(null), true);
 		LayoutUtil.setWidthHint(fRootDialogField.getTextControl(null), maxFieldWidth);

 		// Bug #220003 : consistency between New Source Folder dialog and Source Location Property tab.
 		fExcludeInOthersFields.setSelection(true);

 		setControl(composite);
 		Dialog.applyDialogFont(composite);
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, ICHelpContextIds.NEW_SRCFLDER_WIZARD_PAGE);
 	}

 	@Override
 	public void setVisible(boolean visible) {
 		super.setVisible(visible);
 		if (visible) {
 			fRootDialogField.setFocus();
 		}
 	}

 	// -------- ContainerFieldAdapter --------

 	private class RootFieldAdapter implements IStringButtonAdapter, IDialogFieldListener {
 		@Override
 		public void changeControlPressed(DialogField field) {
 			packRootChangeControlPressed(field);
 		}

 		@Override
 		public void dialogFieldChanged(DialogField field) {
 			packRootDialogFieldChanged(field);
 		}
 	}

 	protected void packRootChangeControlPressed(DialogField field) {
 		if (field == fRootDialogField) {
 			IPath initialPath= new Path(fRootDialogField.getText());
 			String title= NewFolderWizardMessages.NewSourceFolderWizardPage_ChooseExistingRootDialog_title;
 			String message= NewFolderWizardMessages.NewSourceFolderWizardPage_ChooseExistingRootDialog_description;
 			IFolder folder= chooseFolder(title, message, initialPath);
 			if (folder != null) {
 				IPath path= folder.getFullPath().removeFirstSegments(1);
 				fRootDialogField.setText(path.toString());
 			}
 		} else if (field == fProjectField) {
 			ICProject jproject= chooseProject();
 			if (jproject != null) {
 				IPath path= jproject.getProject().getFullPath().makeRelative();
 				fProjectField.setText(path.toString());
 			}
 		}
 	}

 	protected void packRootDialogFieldChanged(DialogField field) {
 		if (field == fRootDialogField) {
 			updateRootStatus();
 		} else if (field == fProjectField) {
 			updateProjectStatus();
 			updateRootStatus();
 		} else if (field == fExcludeInOthersFields) {
 			updateRootStatus();
 		}
 		updateStatus(new IStatus[] { fProjectStatus, fRootStatus });
 	}

 	private void updateProjectStatus() {
 		fCurrCProject= null;
 		fIsProjectAsSourceFolder= false;

 		String str= fProjectField.getText();
 		if (str.isEmpty()) {
 			fProjectStatus.setError(NewFolderWizardMessages.NewSourceFolderWizardPage_error_EnterProjectName);
 			return;
 		}
 		IPath path= new Path(str);
 		if (path.segmentCount() != 1) {
 			fProjectStatus.setError(NewFolderWizardMessages.NewSourceFolderWizardPage_error_InvalidProjectPath);
 			return;
 		}
 		IProject project= fWorkspaceRoot.getProject(path.toString());
 		if (!project.exists()) {
 			fProjectStatus.setError(NewFolderWizardMessages.NewSourceFolderWizardPage_error_ProjectNotExists);
 			return;
 		}
 		try {
 			if (project.hasNature(CProjectNature.C_NATURE_ID) || project.hasNature(CCProjectNature.CC_NATURE_ID)) {
 				fCurrCProject= CoreModel.getDefault().create(project);
 				fEntries= fCurrCProject.getRawPathEntries();
 				fProjectStatus.setOK();
 				return;
 			}
 		} catch (CoreException e) {
 			CUIPlugin.log(e);
 			fCurrCProject= null;
 		}
 		fProjectStatus.setError(NewFolderWizardMessages.NewSourceFolderWizardPage_error_NotACProject);
 	}

 	private void updateRootStatus() {
 		fRootDialogField.enableButton(fCurrCProject != null);
 		fIsProjectAsSourceFolder= false;
 		if (fCurrCProject == null) {
 			return;
 		}
 		fRootStatus.setOK();

 		IPath projPath= fCurrCProject.getProject().getFullPath();
 		String str= fRootDialogField.getText();
 		if (str.length() == 0) {
 			fRootStatus.setError(NLS.bind(NewFolderWizardMessages.NewSourceFolderWizardPage_error_EnterRootName, fCurrCProject.getProject().getFullPath().toString()));
 		} else {
 			IPath path= projPath.append(str);
 			IStatus validate= fWorkspaceRoot.getWorkspace().validatePath(path.toString(), IResource.FOLDER);
 			if (validate.matches(IStatus.ERROR)) {
 				fRootStatus.setError(NLS.bind(NewFolderWizardMessages.NewSourceFolderWizardPage_error_InvalidRootName, validate.getMessage()));
 			} else {
 				IResource res= fWorkspaceRoot.findMember(path);
 				if (res != null) {
 					if (res.getType() != IResource.FOLDER) {
 						fRootStatus.setError(NewFolderWizardMessages.NewSourceFolderWizardPage_error_NotAFolder);
 						return;
 					}
 				}
 				ArrayList<IPathEntry> newEntries= new ArrayList<>(fEntries.length + 1);
 				int projectEntryIndex= -1;

 				for (int i= 0; i < fEntries.length; i++) {
 					IPathEntry curr= fEntries[i];
 					if (curr.getEntryKind() == IPathEntry.CDT_SOURCE) {
 						if (path.equals(curr.getPath())) {
 							fRootStatus.setError(NewFolderWizardMessages.NewSourceFolderWizardPage_error_AlreadyExisting);
 							return;
 						}
 						if (projPath.equals(curr.getPath())) {
 							projectEntryIndex= i;
 						}
 					}
 					newEntries.add(curr);
 				}

 				IPathEntry newEntry= CoreModel.newSourceEntry(path);

 				Set<IPathEntry> modified= new HashSet<>();
 				if (fExcludeInOthersFields.isSelected()) {
 					InternalCoreModelUtil.addExclusionPatterns(newEntry, newEntries, modified);
 					newEntries.add(CoreModel.newSourceEntry(path));
 				} else {
 					if (projectEntryIndex >= 0) {
 						fIsProjectAsSourceFolder= true;
 						newEntries.set(projectEntryIndex, newEntry);
 					} else {
 						newEntries.add(CoreModel.newSourceEntry(path));
 					}
 				}

 				fNewEntries= newEntries.toArray(new IPathEntry[newEntries.size()]);

 				ICModelStatus status= PathEntryManager.getDefault().validatePathEntry(fCurrCProject, fNewEntries);
 				if (!status.isOK()) {
 					IStatus status2= PathEntryManager.getDefault().validatePathEntry(fCurrCProject, fNewEntries);
 					if (status2.isOK()) {
 						return;
 					}
 					fRootStatus.setError(status.getMessage());
 					return;
 				} else if (fIsProjectAsSourceFolder) {
 					fRootStatus.setInfo(NewFolderWizardMessages.NewSourceFolderWizardPage_warning_ReplaceSF);
 					return;
 				}
 				if (!modified.isEmpty()) {
 					fRootStatus.setInfo(NLS.bind(NewFolderWizardMessages.NewSourceFolderWizardPage_warning_AddedExclusions, String.valueOf(modified.size())));
 					return;
 				}
 			}
 		}
 	}

 	// ---- creation ----------------

 	public ISourceRoot getNewSourceRoot() {
 		return fCreatedRoot;
 	}

 	public IResource getCorrespondingResource() {
 		return fCurrCProject.getProject().getFolder(fRootDialogField.getText());
 	}

 	public void createSourceRoot(IProgressMonitor monitor) throws CoreException {
 		SubMonitor progress = SubMonitor.convert(monitor,
 				NewFolderWizardMessages.NewSourceFolderWizardPage_operation, 3);
 		String relPath= fRootDialogField.getText();

 		IProject project = fCurrCProject.getProject();
 		IFolder folder= project.getFolder(relPath);
 		if (!folder.exists()) {
 			CoreUtility.createFolder(folder, true, true, progress.split(1));
 		}

 		if (CCorePlugin.getDefault().isNewStyleProject(project)) {
 			InternalCoreModelUtil.addSourceEntry(project, folder, fIsProjectAsSourceFolder,	progress.split(2));
 		} else {
 			fCurrCProject.setRawPathEntries(fNewEntries, progress.split(2));
 		}

 		fCreatedRoot= fCurrCProject.findSourceRoot(folder);
 	}

 	// ------------- choose dialogs

 	private IFolder chooseFolder(String title, String message, IPath initialPath) {
 		Class<?>[] acceptedClasses= new Class<?>[] { IFolder.class };
 		ISelectionStatusValidator validator= new TypedElementSelectionValidator(acceptedClasses, false);
 		ViewerFilter filter= new TypedViewerFilter(acceptedClasses, null);

 		ILabelProvider lp= new WorkbenchLabelProvider();
 		ITreeContentProvider cp= new WorkbenchContentProvider();

 		IProject currProject= fCurrCProject.getProject();

 		ElementTreeSelectionDialog dialog= new ElementTreeSelectionDialog(getShell(), lp, cp);
 		dialog.setValidator(validator);
 		dialog.setTitle(title);
 		dialog.setMessage(message);
 		dialog.addFilter(filter);
 		dialog.setInput(currProject);
 		dialog.setComparator(new ResourceComparator(ResourceComparator.NAME));
 		IResource res= currProject.findMember(initialPath);
 		if (res != null) {
 			dialog.setInitialSelection(res);
 		}

 		if (dialog.open() == Window.OK) {
 			return (IFolder) dialog.getFirstResult();
 		}
 		return null;
 	}

 	private ICProject chooseProject() {
 		ICProject[] projects;
 		try {
 			projects= CoreModel.create(fWorkspaceRoot).getCProjects();
 		} catch (CModelException e) {
 			CUIPlugin.log(e);
 			projects= new ICProject[0];
 		}

 		ILabelProvider labelProvider= new CElementLabelProvider(CElementLabelProvider.SHOW_DEFAULT);
 		ElementListSelectionDialog dialog= new ElementListSelectionDialog(getShell(), labelProvider);
 		dialog.setTitle(NewFolderWizardMessages.NewSourceFolderWizardPage_ChooseProjectDialog_title);
 		dialog.setMessage(NewFolderWizardMessages.NewSourceFolderWizardPage_ChooseProjectDialog_description);
 		dialog.setElements(projects);
 		dialog.setInitialSelections(new Object[] { fCurrCProject });
 		if (dialog.open() == Window.OK) {
 			return (ICProject) dialog.getFirstResult();
 		}
 		return null;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2015 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.cdt.internal.ui.wizards.folderwizard;

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

	import org.eclipse.core.resources.IFolder;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.resources.IWorkspaceRoot;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.core.runtime.SubMonitor;
	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.viewers.ILabelProvider;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.ITreeContentProvider;
	import org.eclipse.jface.viewers.ViewerFilter;
	import org.eclipse.jface.window.Window;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.dialogs.ElementListSelectionDialog;
	import org.eclipse.ui.dialogs.ElementTreeSelectionDialog;
	import org.eclipse.ui.dialogs.ISelectionStatusValidator;
	import org.eclipse.ui.model.WorkbenchContentProvider;
	import org.eclipse.ui.model.WorkbenchLabelProvider;
	import org.eclipse.ui.views.navigator.ResourceComparator;

	import org.eclipse.cdt.core.CCProjectNature;
	import org.eclipse.cdt.core.CCorePlugin;
	import org.eclipse.cdt.core.CProjectNature;
	import org.eclipse.cdt.core.model.CModelException;
	import org.eclipse.cdt.core.model.CoreModel;
	import org.eclipse.cdt.core.model.ICElement;
	import org.eclipse.cdt.core.model.ICModelStatus;
	import org.eclipse.cdt.core.model.ICProject;
	import org.eclipse.cdt.core.model.IPathEntry;
	import org.eclipse.cdt.core.model.ISourceRoot;
	import org.eclipse.cdt.ui.CElementLabelProvider;
	import org.eclipse.cdt.ui.CUIPlugin;

	import org.eclipse.cdt.internal.core.model.InternalCoreModelUtil;
	import org.eclipse.cdt.internal.core.model.PathEntryManager;

	import org.eclipse.cdt.internal.ui.ICHelpContextIds;
	import org.eclipse.cdt.internal.ui.dialogs.StatusInfo;
	import org.eclipse.cdt.internal.ui.dialogs.TypedElementSelectionValidator;
	import org.eclipse.cdt.internal.ui.dialogs.TypedViewerFilter;
	import org.eclipse.cdt.internal.ui.util.CoreUtility;
	import org.eclipse.cdt.internal.ui.util.EditorUtility;
	import org.eclipse.cdt.internal.ui.wizards.NewElementWizardPage;
	import org.eclipse.cdt.internal.ui.wizards.dialogfields.DialogField;
	import org.eclipse.cdt.internal.ui.wizards.dialogfields.IDialogFieldListener;
	import org.eclipse.cdt.internal.ui.wizards.dialogfields.IStringButtonAdapter;
	import org.eclipse.cdt.internal.ui.wizards.dialogfields.LayoutUtil;
	import org.eclipse.cdt.internal.ui.wizards.dialogfields.SelectionButtonDialogField;
	import org.eclipse.cdt.internal.ui.wizards.dialogfields.StringButtonDialogField;

	public class NewSourceFolderWizardPage extends NewElementWizardPage {
	private static final String PAGE_NAME= "NewSourceFolderWizardPage"; //$NON-NLS-1$

	private StringButtonDialogField fProjectField;
	private StatusInfo fProjectStatus;

	private StringButtonDialogField fRootDialogField;
	private StatusInfo fRootStatus;

	private SelectionButtonDialogField fExcludeInOthersFields;

	private IWorkspaceRoot fWorkspaceRoot;

	private ICProject fCurrCProject;
	private IPathEntry[] fEntries;

	private IPathEntry[] fNewEntries;

	private boolean fIsProjectAsSourceFolder;

	private ISourceRoot fCreatedRoot;

	public NewSourceFolderWizardPage() {
	super(PAGE_NAME);

	setTitle(NewFolderWizardMessages.NewSourceFolderWizardPage_title);
	setDescription(NewFolderWizardMessages.NewSourceFolderWizardPage_description);

	fWorkspaceRoot= ResourcesPlugin.getWorkspace().getRoot();

	RootFieldAdapter adapter= new RootFieldAdapter();

	fProjectField= new StringButtonDialogField(adapter);
	fProjectField.setDialogFieldListener(adapter);
	fProjectField.setLabelText(NewFolderWizardMessages.NewSourceFolderWizardPage_project_label);
	fProjectField.setButtonLabel(NewFolderWizardMessages.NewSourceFolderWizardPage_project_button);

	fRootDialogField= new StringButtonDialogField(adapter);
	fRootDialogField.setDialogFieldListener(adapter);
	fRootDialogField.setLabelText(NewFolderWizardMessages.NewSourceFolderWizardPage_root_label);
	fRootDialogField.setButtonLabel(NewFolderWizardMessages.NewSourceFolderWizardPage_root_button);

	fExcludeInOthersFields= new SelectionButtonDialogField(SWT.CHECK);
	fExcludeInOthersFields.setDialogFieldListener(adapter);
	fExcludeInOthersFields.setLabelText(NewFolderWizardMessages.NewSourceFolderWizardPage_exclude_label);

	fRootStatus= new StatusInfo();
	fProjectStatus= new StatusInfo();
	}

	// -------- Initialization ---------

	public void init(IStructuredSelection selection) {
	if (selection == null \|\| selection.isEmpty()) {
	setDefaultAttributes();
	return;
	}

	Object selectedElement= selection.getFirstElement();
	if (selectedElement == null) {
	selectedElement= EditorUtility.getActiveEditorCInput();
	}

	String projPath= null;

	if (selectedElement instanceof IResource) {
	IProject proj= ((IResource) selectedElement).getProject();
	if (proj != null) {
	projPath= proj.getFullPath().makeRelative().toString();
	}
	} else if (selectedElement instanceof ICElement) {
	ICProject jproject= ((ICElement) selectedElement).getCProject();
	if (jproject != null) {
	projPath= jproject.getProject().getFullPath().makeRelative().toString();
	}
	}

	if (projPath != null) {
	fProjectField.setText(projPath);
	fRootDialogField.setText(""); //$NON-NLS-1$
	} else {
	setDefaultAttributes();
	}
	}

	private void setDefaultAttributes() {
	String projPath= ""; //$NON-NLS-1$

	try {
	// find the first C project
	IProject[] projects= fWorkspaceRoot.getProjects();
	for (IProject proj : projects) {
	if (proj.hasNature(CProjectNature.C_NATURE_ID) \|\| proj.hasNature(CCProjectNature.CC_NATURE_ID)) {
	projPath= proj.getFullPath().makeRelative().toString();
	break;
	}
	}
	} catch (CoreException e) {
	// ignore here
	}
	fProjectField.setText(projPath);
	fRootDialogField.setText(""); //$NON-NLS-1$
	}

	// -------- UI Creation ---------

	@Override
	public void createControl(Composite parent) {
	initializeDialogUnits(parent);

	Composite composite= new Composite(parent, SWT.NONE);

	GridLayout layout= new GridLayout();
	layout.marginWidth= 0;
	layout.marginHeight= 0;
	layout.numColumns= 3;
	composite.setLayout(layout);

	fProjectField.doFillIntoGrid(composite, 3);
	fRootDialogField.doFillIntoGrid(composite, 3);
	fExcludeInOthersFields.doFillIntoGrid(composite, 3);

	int maxFieldWidth= convertWidthInCharsToPixels(40);
	LayoutUtil.setWidthHint(fProjectField.getTextControl(null), maxFieldWidth);
	LayoutUtil.setHorizontalGrabbing(fProjectField.getTextControl(null), true);
	LayoutUtil.setWidthHint(fRootDialogField.getTextControl(null), maxFieldWidth);

	// Bug #220003 : consistency between New Source Folder dialog and Source Location Property tab.
	fExcludeInOthersFields.setSelection(true);

	setControl(composite);
	Dialog.applyDialogFont(composite);
	PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, ICHelpContextIds.NEW_SRCFLDER_WIZARD_PAGE);
	}

	@Override
	public void setVisible(boolean visible) {
	super.setVisible(visible);
	if (visible) {
	fRootDialogField.setFocus();
	}
	}

	// -------- ContainerFieldAdapter --------

	private class RootFieldAdapter implements IStringButtonAdapter, IDialogFieldListener {
	@Override
	public void changeControlPressed(DialogField field) {
	packRootChangeControlPressed(field);
	}

	@Override
	public void dialogFieldChanged(DialogField field) {
	packRootDialogFieldChanged(field);
	}
	}

	protected void packRootChangeControlPressed(DialogField field) {
	if (field == fRootDialogField) {
	IPath initialPath= new Path(fRootDialogField.getText());
	String title= NewFolderWizardMessages.NewSourceFolderWizardPage_ChooseExistingRootDialog_title;
	String message= NewFolderWizardMessages.NewSourceFolderWizardPage_ChooseExistingRootDialog_description;
	IFolder folder= chooseFolder(title, message, initialPath);
	if (folder != null) {
	IPath path= folder.getFullPath().removeFirstSegments(1);
	fRootDialogField.setText(path.toString());
	}
	} else if (field == fProjectField) {
	ICProject jproject= chooseProject();
	if (jproject != null) {
	IPath path= jproject.getProject().getFullPath().makeRelative();
	fProjectField.setText(path.toString());
	}
	}
	}

	protected void packRootDialogFieldChanged(DialogField field) {
	if (field == fRootDialogField) {
	updateRootStatus();
	} else if (field == fProjectField) {
	updateProjectStatus();
	updateRootStatus();
	} else if (field == fExcludeInOthersFields) {
	updateRootStatus();
	}
	updateStatus(new IStatus[] { fProjectStatus, fRootStatus });
	}

	private void updateProjectStatus() {
	fCurrCProject= null;
	fIsProjectAsSourceFolder= false;

	String str= fProjectField.getText();
	if (str.isEmpty()) {
	fProjectStatus.setError(NewFolderWizardMessages.NewSourceFolderWizardPage_error_EnterProjectName);
	return;
	}
	IPath path= new Path(str);
	if (path.segmentCount() != 1) {
	fProjectStatus.setError(NewFolderWizardMessages.NewSourceFolderWizardPage_error_InvalidProjectPath);
	return;
	}
	IProject project= fWorkspaceRoot.getProject(path.toString());
	if (!project.exists()) {
	fProjectStatus.setError(NewFolderWizardMessages.NewSourceFolderWizardPage_error_ProjectNotExists);
	return;
	}
	try {
	if (project.hasNature(CProjectNature.C_NATURE_ID) \|\| project.hasNature(CCProjectNature.CC_NATURE_ID)) {
	fCurrCProject= CoreModel.getDefault().create(project);
	fEntries= fCurrCProject.getRawPathEntries();
	fProjectStatus.setOK();
	return;
	}
	} catch (CoreException e) {
	CUIPlugin.log(e);
	fCurrCProject= null;
	}
	fProjectStatus.setError(NewFolderWizardMessages.NewSourceFolderWizardPage_error_NotACProject);
	}

	private void updateRootStatus() {
	fRootDialogField.enableButton(fCurrCProject != null);
	fIsProjectAsSourceFolder= false;
	if (fCurrCProject == null) {
	return;
	}
	fRootStatus.setOK();

	IPath projPath= fCurrCProject.getProject().getFullPath();
	String str= fRootDialogField.getText();
	if (str.length() == 0) {
	fRootStatus.setError(NLS.bind(NewFolderWizardMessages.NewSourceFolderWizardPage_error_EnterRootName, fCurrCProject.getProject().getFullPath().toString()));
	} else {
	IPath path= projPath.append(str);
	IStatus validate= fWorkspaceRoot.getWorkspace().validatePath(path.toString(), IResource.FOLDER);
	if (validate.matches(IStatus.ERROR)) {
	fRootStatus.setError(NLS.bind(NewFolderWizardMessages.NewSourceFolderWizardPage_error_InvalidRootName, validate.getMessage()));
	} else {
	IResource res= fWorkspaceRoot.findMember(path);
	if (res != null) {
	if (res.getType() != IResource.FOLDER) {
	fRootStatus.setError(NewFolderWizardMessages.NewSourceFolderWizardPage_error_NotAFolder);
	return;
	}
	}
	ArrayList<IPathEntry> newEntries= new ArrayList<>(fEntries.length + 1);
	int projectEntryIndex= -1;

	for (int i= 0; i < fEntries.length; i++) {
	IPathEntry curr= fEntries[i];
	if (curr.getEntryKind() == IPathEntry.CDT_SOURCE) {
	if (path.equals(curr.getPath())) {
	fRootStatus.setError(NewFolderWizardMessages.NewSourceFolderWizardPage_error_AlreadyExisting);
	return;
	}
	if (projPath.equals(curr.getPath())) {
	projectEntryIndex= i;
	}
	}
	newEntries.add(curr);
	}

	IPathEntry newEntry= CoreModel.newSourceEntry(path);

	Set<IPathEntry> modified= new HashSet<>();
	if (fExcludeInOthersFields.isSelected()) {
	InternalCoreModelUtil.addExclusionPatterns(newEntry, newEntries, modified);
	newEntries.add(CoreModel.newSourceEntry(path));
	} else {
	if (projectEntryIndex >= 0) {
	fIsProjectAsSourceFolder= true;
	newEntries.set(projectEntryIndex, newEntry);
	} else {
	newEntries.add(CoreModel.newSourceEntry(path));
	}
	}

	fNewEntries= newEntries.toArray(new IPathEntry[newEntries.size()]);

	ICModelStatus status= PathEntryManager.getDefault().validatePathEntry(fCurrCProject, fNewEntries);
	if (!status.isOK()) {
	IStatus status2= PathEntryManager.getDefault().validatePathEntry(fCurrCProject, fNewEntries);
	if (status2.isOK()) {
	return;
	}
	fRootStatus.setError(status.getMessage());
	return;
	} else if (fIsProjectAsSourceFolder) {
	fRootStatus.setInfo(NewFolderWizardMessages.NewSourceFolderWizardPage_warning_ReplaceSF);
	return;
	}
	if (!modified.isEmpty()) {
	fRootStatus.setInfo(NLS.bind(NewFolderWizardMessages.NewSourceFolderWizardPage_warning_AddedExclusions, String.valueOf(modified.size())));
	return;
	}
	}
	}
	}

	// ---- creation ----------------

	public ISourceRoot getNewSourceRoot() {
	return fCreatedRoot;
	}

	public IResource getCorrespondingResource() {
	return fCurrCProject.getProject().getFolder(fRootDialogField.getText());
	}

	public void createSourceRoot(IProgressMonitor monitor) throws CoreException {
	SubMonitor progress = SubMonitor.convert(monitor,
	NewFolderWizardMessages.NewSourceFolderWizardPage_operation, 3);
	String relPath= fRootDialogField.getText();

	IProject project = fCurrCProject.getProject();
	IFolder folder= project.getFolder(relPath);
	if (!folder.exists()) {
	CoreUtility.createFolder(folder, true, true, progress.split(1));
	}

	if (CCorePlugin.getDefault().isNewStyleProject(project)) {
	InternalCoreModelUtil.addSourceEntry(project, folder, fIsProjectAsSourceFolder, progress.split(2));
	} else {
	fCurrCProject.setRawPathEntries(fNewEntries, progress.split(2));
	}

	fCreatedRoot= fCurrCProject.findSourceRoot(folder);
	}

	// ------------- choose dialogs

	private IFolder chooseFolder(String title, String message, IPath initialPath) {
	Class<?>[] acceptedClasses= new Class<?>[] { IFolder.class };
	ISelectionStatusValidator validator= new TypedElementSelectionValidator(acceptedClasses, false);
	ViewerFilter filter= new TypedViewerFilter(acceptedClasses, null);

	ILabelProvider lp= new WorkbenchLabelProvider();
	ITreeContentProvider cp= new WorkbenchContentProvider();

	IProject currProject= fCurrCProject.getProject();

	ElementTreeSelectionDialog dialog= new ElementTreeSelectionDialog(getShell(), lp, cp);
	dialog.setValidator(validator);
	dialog.setTitle(title);
	dialog.setMessage(message);
	dialog.addFilter(filter);
	dialog.setInput(currProject);
	dialog.setComparator(new ResourceComparator(ResourceComparator.NAME));
	IResource res= currProject.findMember(initialPath);
	if (res != null) {
	dialog.setInitialSelection(res);
	}

	if (dialog.open() == Window.OK) {
	return (IFolder) dialog.getFirstResult();
	}
	return null;
	}

	private ICProject chooseProject() {
	ICProject[] projects;
	try {
	projects= CoreModel.create(fWorkspaceRoot).getCProjects();
	} catch (CModelException e) {
	CUIPlugin.log(e);
	projects= new ICProject[0];
	}

	ILabelProvider labelProvider= new CElementLabelProvider(CElementLabelProvider.SHOW_DEFAULT);
	ElementListSelectionDialog dialog= new ElementListSelectionDialog(getShell(), labelProvider);
	dialog.setTitle(NewFolderWizardMessages.NewSourceFolderWizardPage_ChooseProjectDialog_title);
	dialog.setMessage(NewFolderWizardMessages.NewSourceFolderWizardPage_ChooseProjectDialog_description);
	dialog.setElements(projects);
	dialog.setInitialSelections(new Object[] { fCurrCProject });
	if (dialog.open() == Window.OK) {
	return (ICProject) dialog.getFirstResult();
	}
	return null;
	}
	}