org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/formatter/CodeFormatterConfigurationBlock.java - jdt/eclipse.jdt.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2005 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.jdt.internal.ui.preferences.formatter;

 import java.io.File;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.Observable;
 import java.util.Observer;

 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.preferences.IScopeContext;
 import org.eclipse.core.runtime.preferences.InstanceScope;

 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.ProjectScope;

 import org.eclipse.swt.SWT;
 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.Combo;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.FileDialog;
 import org.eclipse.swt.widgets.Label;

 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.window.Window;

 import org.eclipse.jdt.internal.corext.util.Messages;

 import org.eclipse.jdt.ui.JavaUI;

 import org.eclipse.jdt.internal.ui.JavaPlugin;
 import org.eclipse.jdt.internal.ui.preferences.formatter.ProfileManager.CustomProfile;
 import org.eclipse.jdt.internal.ui.preferences.formatter.ProfileManager.Profile;
 import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
 import org.eclipse.jdt.internal.ui.util.PixelConverter;
 import org.eclipse.jdt.internal.ui.util.SWTUtil;


 /**
  * The code formatter preference page.
  */

 public class CodeFormatterConfigurationBlock {

     private static final String DIALOGSTORE_LASTLOADPATH= JavaUI.ID_PLUGIN + ".codeformatter.loadpath"; //$NON-NLS-1$
 	private static final String DIALOGSTORE_LASTSAVEPATH= JavaUI.ID_PLUGIN + ".codeformatter.savepath"; //$NON-NLS-1$


 	private class StoreUpdater implements Observer {

 		public StoreUpdater() {
 			fProfileManager.addObserver(this);
 		}

 		public void update(Observable o, Object arg) {
 			final int value= ((Integer)arg).intValue();
 			switch (value) {
 			case ProfileManager.PROFILE_DELETED_EVENT:
 			case ProfileManager.PROFILE_RENAMED_EVENT:
 			case ProfileManager.PROFILE_CREATED_EVENT:
 			case ProfileManager.SETTINGS_CHANGED_EVENT:
 				try {
 					ProfileStore.writeProfiles(fProfileManager.getSortedProfiles()); // update profile store
 				} catch (CoreException x) {
 					JavaPlugin.log(x);
 				}
 				// fall through
 			case ProfileManager.SELECTION_CHANGED_EVENT:
 				fProfileManager.commitChanges(fCurrContext); // update formatter settings with curently selected profile
 			}
 		}
 	}

 	private class ProfileComboController implements Observer, SelectionListener {

 		private final List fSortedProfiles;

 		public ProfileComboController() {
 			fSortedProfiles= fProfileManager.getSortedProfiles();
 			fProfileCombo.addSelectionListener(this);
 			fProfileManager.addObserver(this);
 			updateProfiles();
 			updateSelection();
 		}

 		public void widgetSelected(SelectionEvent e) {
 			final int index= fProfileCombo.getSelectionIndex();
 			fProfileManager.setSelected((Profile)fSortedProfiles.get(index));
 		}

 		public void widgetDefaultSelected(SelectionEvent e) {}

 		public void update(Observable o, Object arg) {
 			if (arg == null) return;
 			final int value= ((Integer)arg).intValue();
 			switch (value) {
 				case ProfileManager.PROFILE_CREATED_EVENT:
 				case ProfileManager.PROFILE_DELETED_EVENT:
 				case ProfileManager.PROFILE_RENAMED_EVENT:
 					updateProfiles();
 				case ProfileManager.SELECTION_CHANGED_EVENT:
 					updateSelection();
 			}
 		}

 		private void updateProfiles() {
 			fProfileCombo.setItems(fProfileManager.getSortedNames());
 		}

 		private void updateSelection() {
 			fProfileCombo.setText(fProfileManager.getSelected().getName());
 		}
 	}

 	private class ButtonController implements Observer, SelectionListener {

 		public ButtonController() {
 			fProfileManager.addObserver(this);
 			fNewButton.addSelectionListener(this);
 			fRenameButton.addSelectionListener(this);
 			fEditButton.addSelectionListener(this);
 			fDeleteButton.addSelectionListener(this);
 			fSaveButton.addSelectionListener(this);
 			fLoadButton.addSelectionListener(this);
 			update(fProfileManager, null);
 		}

 		public void update(Observable o, Object arg) {
 			final boolean state= ((ProfileManager)o).getSelected() instanceof CustomProfile;
 			fEditButton.setText(state ? FormatterMessages.CodingStyleConfigurationBlock_edit_button_desc
 			    : FormatterMessages.CodingStyleConfigurationBlock_show_button_desc);
 			fDeleteButton.setEnabled(state);
 			fSaveButton.setEnabled(state);
 			fRenameButton.setEnabled(state);
 		}

 		public void widgetSelected(SelectionEvent e) {
 			final Button button= (Button)e.widget;
 			if (button == fSaveButton)
 				saveButtonPressed();
 			else if (button == fEditButton)
 				modifyButtonPressed();
 			else if (button == fDeleteButton)
 				deleteButtonPressed();
 			else if (button == fNewButton)
 				newButtonPressed();
 			else if (button == fLoadButton)
 				loadButtonPressed();
 			else if (button == fRenameButton)
 				renameButtonPressed();
 		}

 		public void widgetDefaultSelected(SelectionEvent e) {
 		}

 		private void renameButtonPressed() {
 			if (!(fProfileManager.getSelected() instanceof CustomProfile)) return;
 			final CustomProfile profile= (CustomProfile)fProfileManager.getSelected();
 			final RenameProfileDialog renameDialog= new RenameProfileDialog(fComposite.getShell(), profile, fProfileManager);
 			renameDialog.open();
 		}

 		private void modifyButtonPressed() {
 			final ModifyDialog modifyDialog= new ModifyDialog(fComposite.getShell(), fProfileManager.getSelected(), fProfileManager, false);
 			modifyDialog.open();
 		}

 		private void deleteButtonPressed() {
 			if (MessageDialog.openQuestion(
 				fComposite.getShell(),
 				FormatterMessages.CodingStyleConfigurationBlock_delete_confirmation_title,
 				Messages.format(FormatterMessages.CodingStyleConfigurationBlock_delete_confirmation_question, fProfileManager.getSelected().getName()))) {
 				fProfileManager.deleteSelected();
 			}
 		}

 		private void newButtonPressed() {
 			final CreateProfileDialog p= new CreateProfileDialog(fComposite.getShell(), fProfileManager);
 			if (p.open() != Window.OK)
 				return;
 			if (!p.openEditDialog())
 				return;
 			final ModifyDialog modifyDialog= new ModifyDialog(fComposite.getShell(), p.getCreatedProfile(), fProfileManager, true);
 			modifyDialog.open();
 		}

 		private void saveButtonPressed() {
 			final FileDialog dialog= new FileDialog(fComposite.getShell(), SWT.SAVE);
 			dialog.setText(FormatterMessages.CodingStyleConfigurationBlock_save_profile_dialog_title);
 			dialog.setFilterExtensions(new String [] {"*.xml"}); //$NON-NLS-1$

 			final String lastPath= JavaPlugin.getDefault().getDialogSettings().get(DIALOGSTORE_LASTSAVEPATH);
 			if (lastPath != null) {
 				dialog.setFilterPath(lastPath);
 			}
 			final String path= dialog.open();
 			if (path == null)
 				return;

 			JavaPlugin.getDefault().getDialogSettings().put(DIALOGSTORE_LASTSAVEPATH, dialog.getFilterPath());

 			final File file= new File(path);
 			if (file.exists() && !MessageDialog.openQuestion(fComposite.getShell(), FormatterMessages.CodingStyleConfigurationBlock_save_profile_overwrite_title, Messages.format(FormatterMessages.CodingStyleConfigurationBlock_save_profile_overwrite_message, path))) {
 				return;
 			}

 			final Collection profiles= new ArrayList();
 			profiles.add(fProfileManager.getSelected());
 			try {
 				ProfileStore.writeProfilesToFile(profiles, file);
 			} catch (CoreException e) {
 				final String title= FormatterMessages.CodingStyleConfigurationBlock_save_profile_error_title;
 				final String message= FormatterMessages.CodingStyleConfigurationBlock_save_profile_error_message;
 				ExceptionHandler.handle(e, fComposite.getShell(), title, message);
 			}
 		}

 		private void loadButtonPressed() {
 			final FileDialog dialog= new FileDialog(fComposite.getShell(), SWT.OPEN);
 			dialog.setText(FormatterMessages.CodingStyleConfigurationBlock_load_profile_dialog_title);
 			dialog.setFilterExtensions(new String [] {"*.xml"}); //$NON-NLS-1$
 			final String lastPath= JavaPlugin.getDefault().getDialogSettings().get(DIALOGSTORE_LASTLOADPATH);
 			if (lastPath != null) {
 				dialog.setFilterPath(lastPath);
 			}
 			final String path= dialog.open();
 			if (path == null)
 				return;
 			JavaPlugin.getDefault().getDialogSettings().put(DIALOGSTORE_LASTLOADPATH, dialog.getFilterPath());

 			final File file= new File(path);
 			Collection profiles= null;
 			try {
 				profiles= ProfileStore.readProfilesFromFile(file);
 			} catch (CoreException e) {
 				final String title= FormatterMessages.CodingStyleConfigurationBlock_load_profile_error_title;
 				final String message= FormatterMessages.CodingStyleConfigurationBlock_load_profile_error_message;
 				ExceptionHandler.handle(e, fComposite.getShell(), title, message);
 			}
 			if (profiles == null || profiles.isEmpty())
 				return;

 			final CustomProfile profile= (CustomProfile)profiles.iterator().next();

 			if (ProfileVersioner.getVersionStatus(profile) > 0) {
 				final String title= FormatterMessages.CodingStyleConfigurationBlock_load_profile_error_too_new_title;
 				final String message= FormatterMessages.CodingStyleConfigurationBlock_load_profile_error_too_new_message;
 			    MessageDialog.openWarning(fComposite.getShell(), title, message);
 			}

 			if (fProfileManager.containsName(profile.getName())) {
 				final AlreadyExistsDialog aeDialog= new AlreadyExistsDialog(fComposite.getShell(), profile, fProfileManager);
 				if (aeDialog.open() != Window.OK)
 					return;
 			}
 			ProfileVersioner.updateAndComplete(profile);
 			fProfileManager.addProfile(profile);
 		}
 	}

 	private class PreviewController implements Observer {

 		public PreviewController() {
 			fProfileManager.addObserver(this);
 			fJavaPreview.setWorkingValues(fProfileManager.getSelected().getSettings());
 			fJavaPreview.update();
 		}

 		public void update(Observable o, Object arg) {
 			final int value= ((Integer)arg).intValue();
 			switch (value) {
 				case ProfileManager.PROFILE_CREATED_EVENT:
 				case ProfileManager.PROFILE_DELETED_EVENT:
 				case ProfileManager.SELECTION_CHANGED_EVENT:
 				case ProfileManager.SETTINGS_CHANGED_EVENT:
 					fJavaPreview.setWorkingValues(((ProfileManager)o).getSelected().getSettings());
 					fJavaPreview.update();
 			}
 		}

 	}


 	/**
 	 * Some Java source code used for preview.
 	 */
 	private final static String PREVIEW=
 		"/**\n* " + //$NON-NLS-1$
 		FormatterMessages.CodingStyleConfigurationBlock_preview_title +
 		"\n*/\n\n" + //$NON-NLS-1$
 		"package mypackage; import java.util.LinkedList; public class MyIntStack {" + //$NON-NLS-1$
 		"private final LinkedList fStack;" + //$NON-NLS-1$
 		"public MyIntStack(){fStack= new LinkedList();}" + //$NON-NLS-1$
 		"public int pop(){return ((Integer)fStack.removeFirst()).intValue();}" + //$NON-NLS-1$
 		"public void push(int elem){fStack.addFirst(new Integer(elem));}" + //$NON-NLS-1$
 		"public boolean isEmpty() {return fStack.isEmpty();}" + //$NON-NLS-1$
 		"}"; //$NON-NLS-1$


 	/**
 	 * The GUI controls
 	 */
 	protected Composite fComposite;
 	protected Combo fProfileCombo;
 	protected Button fEditButton;
 	protected Button fRenameButton;
 	protected Button fDeleteButton;
 	protected Button fNewButton;
 	protected Button fLoadButton;
 	protected Button fSaveButton;

 	/**
 	 * The ProfileManager, the model of this page.
 	 */
 	protected final ProfileManager fProfileManager;

 	/**
 	 * The JavaPreview.
 	 */
 	protected CompilationUnitPreview fJavaPreview;
 	private PixelConverter fPixConv;

 	private IScopeContext fCurrContext;

 	/**
 	 * Create a new <code>CodeFormatterConfigurationBlock</code>.
 	 */
 	public CodeFormatterConfigurationBlock(IProject project) {
 		List profiles= null;
 		try {
 		    profiles= ProfileStore.readProfiles();
 		} catch (CoreException e) {
 			JavaPlugin.log(e);
 		}

 		if (profiles == null)
 		    profiles= new ArrayList();

 		if (project != null) {
 			fCurrContext= new ProjectScope(project);
 		} else {
 			fCurrContext= new InstanceScope();
 		}

 		fProfileManager= new ProfileManager(profiles, fCurrContext);

 		new StoreUpdater();
 	}

 	/**
 	 * Create the contents
 	 * @param parent Parent composite
 	 * @return Created control
 	 */
 	public Composite createContents(Composite parent) {

 		final int numColumns = 5;

 		fPixConv = new PixelConverter(parent);
 		fComposite = createComposite(parent, numColumns);

 		fProfileCombo= createProfileCombo(fComposite, numColumns - 3, fPixConv.convertWidthInCharsToPixels(20));
 		fEditButton= createButton(fComposite, FormatterMessages.CodingStyleConfigurationBlock_edit_button_desc, GridData.HORIZONTAL_ALIGN_BEGINNING);
 		fRenameButton= createButton(fComposite, FormatterMessages.CodingStyleConfigurationBlock_rename_button_desc, GridData.HORIZONTAL_ALIGN_BEGINNING);
 		fDeleteButton= createButton(fComposite, FormatterMessages.CodingStyleConfigurationBlock_remove_button_desc, GridData.HORIZONTAL_ALIGN_BEGINNING);

 		final Composite group= createComposite(fComposite, 4);
 		final GridData groupData= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 		groupData.horizontalSpan= numColumns;
 		group.setLayoutData(groupData);

 		fNewButton= createButton(group, FormatterMessages.CodingStyleConfigurationBlock_new_button_desc, GridData.HORIZONTAL_ALIGN_BEGINNING);
 		((GridData)createLabel(group, "", 1).getLayoutData()).grabExcessHorizontalSpace= true; //$NON-NLS-1$
 		fLoadButton= createButton(group, FormatterMessages.CodingStyleConfigurationBlock_load_button_desc, GridData.HORIZONTAL_ALIGN_END);
 		fSaveButton= createButton(group, FormatterMessages.CodingStyleConfigurationBlock_save_button_desc, GridData.HORIZONTAL_ALIGN_END);

 		createLabel(fComposite, FormatterMessages.CodingStyleConfigurationBlock_preview_label_text, numColumns);
 		configurePreview(fComposite, numColumns);

 		new ButtonController();
 		new ProfileComboController();
 		new PreviewController();

 		return fComposite;
 	}


 	private static Button createButton(Composite composite, String text, final int style) {
 		final Button button= new Button(composite, SWT.PUSH);
 		button.setFont(composite.getFont());
 		button.setText(text);

 		final GridData gd= new GridData(style);
 		gd.widthHint= SWTUtil.getButtonWidthHint(button);
 		button.setLayoutData(gd);
 		return button;
 	}

 	private static Combo createProfileCombo(Composite composite, int span, int widthHint) {
 		final GridData gd = new GridData(GridData.FILL_HORIZONTAL);
 		gd.horizontalSpan = span;
 		gd.widthHint= widthHint;

 		final Combo combo= new Combo(composite, SWT.DROP_DOWN | SWT.READ_ONLY );
 		combo.setFont(composite.getFont());
 		combo.setLayoutData(gd);
 		return combo;
 	}

 	private Label createLabel(Composite composite, String text, int numColumns) {
 		final GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 		gd.horizontalSpan = numColumns;
 		gd.widthHint= 0;

 		final Label label = new Label(composite, SWT.WRAP);
 		label.setFont(composite.getFont());
 		label.setText(text);
 		label.setLayoutData(gd);
 		return label;
 	}

 	private Composite createComposite(Composite parent, int numColumns) {
 		final Composite composite = new Composite(parent, SWT.NONE);
 		composite.setFont(parent.getFont());

 		final GridLayout layout = new GridLayout(numColumns, false);
 		layout.marginHeight = 0;
 		layout.marginWidth = 0;
 		composite.setLayout(layout);
 		return composite;
 	}

 	private void configurePreview(Composite composite, int numColumns) {
 		fJavaPreview= new CompilationUnitPreview(fProfileManager.getSelected().getSettings(), composite);
 		fJavaPreview.setPreviewText(PREVIEW);

 		final GridData gd = new GridData(GridData.FILL_VERTICAL | GridData.HORIZONTAL_ALIGN_FILL);
 		gd.horizontalSpan = numColumns;
 		gd.verticalSpan= 7;
 		gd.widthHint = 0;
 		gd.heightHint = 0;
 		fJavaPreview.getControl().setLayoutData(gd);
 	}

 	public final boolean hasProjectSpecificOptions(IProject project) {
 		if (project != null) {
 			return ProfileManager.hasProjectSpecificSettings(new ProjectScope(project));
 		}
 		return false;
 	}

 	public boolean performOk() {
 		return true;
 	}

 	public void performDefaults() {
 		Profile profile= fProfileManager.getProfile(ProfileManager.DEFAULT_PROFILE);
 		if (profile != null) {
 			int defaultIndex= fProfileManager.getSortedProfiles().indexOf(profile);
 			if (defaultIndex != -1) {
 				fProfileManager.setSelected(profile);
 			}
 		}
 	}

 	public void dispose() {
 	}

 	public void enableProjectSpecificSettings(boolean useProjectSpecificSettings) {
 		if (useProjectSpecificSettings) {
 			fProfileManager.commitChanges(fCurrContext);
 		} else {
 			fProfileManager.clearAllSettings(fCurrContext);
 		}
 	}


 }
	/*******************************************************************************
	* Copyright (c) 2000, 2005 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.jdt.internal.ui.preferences.formatter;

	import java.io.File;
	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.List;
	import java.util.Observable;
	import java.util.Observer;

	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.preferences.IScopeContext;
	import org.eclipse.core.runtime.preferences.InstanceScope;

	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.ProjectScope;

	import org.eclipse.swt.SWT;
	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.Combo;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.FileDialog;
	import org.eclipse.swt.widgets.Label;

	import org.eclipse.jface.dialogs.MessageDialog;
	import org.eclipse.jface.window.Window;

	import org.eclipse.jdt.internal.corext.util.Messages;

	import org.eclipse.jdt.ui.JavaUI;

	import org.eclipse.jdt.internal.ui.JavaPlugin;
	import org.eclipse.jdt.internal.ui.preferences.formatter.ProfileManager.CustomProfile;
	import org.eclipse.jdt.internal.ui.preferences.formatter.ProfileManager.Profile;
	import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
	import org.eclipse.jdt.internal.ui.util.PixelConverter;
	import org.eclipse.jdt.internal.ui.util.SWTUtil;



	/**
	* The code formatter preference page.
	*/

	public class CodeFormatterConfigurationBlock {

	private static final String DIALOGSTORE_LASTLOADPATH= JavaUI.ID_PLUGIN + ".codeformatter.loadpath"; //$NON-NLS-1$
	private static final String DIALOGSTORE_LASTSAVEPATH= JavaUI.ID_PLUGIN + ".codeformatter.savepath"; //$NON-NLS-1$


	private class StoreUpdater implements Observer {

	public StoreUpdater() {
	fProfileManager.addObserver(this);
	}

	public void update(Observable o, Object arg) {
	final int value= ((Integer)arg).intValue();
	switch (value) {
	case ProfileManager.PROFILE_DELETED_EVENT:
	case ProfileManager.PROFILE_RENAMED_EVENT:
	case ProfileManager.PROFILE_CREATED_EVENT:
	case ProfileManager.SETTINGS_CHANGED_EVENT:
	try {
	ProfileStore.writeProfiles(fProfileManager.getSortedProfiles()); // update profile store
	} catch (CoreException x) {
	JavaPlugin.log(x);
	}
	// fall through
	case ProfileManager.SELECTION_CHANGED_EVENT:
	fProfileManager.commitChanges(fCurrContext); // update formatter settings with curently selected profile
	}
	}
	}

	private class ProfileComboController implements Observer, SelectionListener {

	private final List fSortedProfiles;

	public ProfileComboController() {
	fSortedProfiles= fProfileManager.getSortedProfiles();
	fProfileCombo.addSelectionListener(this);
	fProfileManager.addObserver(this);
	updateProfiles();
	updateSelection();
	}

	public void widgetSelected(SelectionEvent e) {
	final int index= fProfileCombo.getSelectionIndex();
	fProfileManager.setSelected((Profile)fSortedProfiles.get(index));
	}

	public void widgetDefaultSelected(SelectionEvent e) {}

	public void update(Observable o, Object arg) {
	if (arg == null) return;
	final int value= ((Integer)arg).intValue();
	switch (value) {
	case ProfileManager.PROFILE_CREATED_EVENT:
	case ProfileManager.PROFILE_DELETED_EVENT:
	case ProfileManager.PROFILE_RENAMED_EVENT:
	updateProfiles();
	case ProfileManager.SELECTION_CHANGED_EVENT:
	updateSelection();
	}
	}

	private void updateProfiles() {
	fProfileCombo.setItems(fProfileManager.getSortedNames());
	}

	private void updateSelection() {
	fProfileCombo.setText(fProfileManager.getSelected().getName());
	}
	}

	private class ButtonController implements Observer, SelectionListener {

	public ButtonController() {
	fProfileManager.addObserver(this);
	fNewButton.addSelectionListener(this);
	fRenameButton.addSelectionListener(this);
	fEditButton.addSelectionListener(this);
	fDeleteButton.addSelectionListener(this);
	fSaveButton.addSelectionListener(this);
	fLoadButton.addSelectionListener(this);
	update(fProfileManager, null);
	}

	public void update(Observable o, Object arg) {
	final boolean state= ((ProfileManager)o).getSelected() instanceof CustomProfile;
	fEditButton.setText(state ? FormatterMessages.CodingStyleConfigurationBlock_edit_button_desc
	: FormatterMessages.CodingStyleConfigurationBlock_show_button_desc);
	fDeleteButton.setEnabled(state);
	fSaveButton.setEnabled(state);
	fRenameButton.setEnabled(state);
	}

	public void widgetSelected(SelectionEvent e) {
	final Button button= (Button)e.widget;
	if (button == fSaveButton)
	saveButtonPressed();
	else if (button == fEditButton)
	modifyButtonPressed();
	else if (button == fDeleteButton)
	deleteButtonPressed();
	else if (button == fNewButton)
	newButtonPressed();
	else if (button == fLoadButton)
	loadButtonPressed();
	else if (button == fRenameButton)
	renameButtonPressed();
	}

	public void widgetDefaultSelected(SelectionEvent e) {
	}

	private void renameButtonPressed() {
	if (!(fProfileManager.getSelected() instanceof CustomProfile)) return;
	final CustomProfile profile= (CustomProfile)fProfileManager.getSelected();
	final RenameProfileDialog renameDialog= new RenameProfileDialog(fComposite.getShell(), profile, fProfileManager);
	renameDialog.open();
	}

	private void modifyButtonPressed() {
	final ModifyDialog modifyDialog= new ModifyDialog(fComposite.getShell(), fProfileManager.getSelected(), fProfileManager, false);
	modifyDialog.open();
	}

	private void deleteButtonPressed() {
	if (MessageDialog.openQuestion(
	fComposite.getShell(),
	FormatterMessages.CodingStyleConfigurationBlock_delete_confirmation_title,
	Messages.format(FormatterMessages.CodingStyleConfigurationBlock_delete_confirmation_question, fProfileManager.getSelected().getName()))) {
	fProfileManager.deleteSelected();
	}
	}

	private void newButtonPressed() {
	final CreateProfileDialog p= new CreateProfileDialog(fComposite.getShell(), fProfileManager);
	if (p.open() != Window.OK)
	return;
	if (!p.openEditDialog())
	return;
	final ModifyDialog modifyDialog= new ModifyDialog(fComposite.getShell(), p.getCreatedProfile(), fProfileManager, true);
	modifyDialog.open();
	}

	private void saveButtonPressed() {
	final FileDialog dialog= new FileDialog(fComposite.getShell(), SWT.SAVE);
	dialog.setText(FormatterMessages.CodingStyleConfigurationBlock_save_profile_dialog_title);
	dialog.setFilterExtensions(new String [] {"*.xml"}); //$NON-NLS-1$

	final String lastPath= JavaPlugin.getDefault().getDialogSettings().get(DIALOGSTORE_LASTSAVEPATH);
	if (lastPath != null) {
	dialog.setFilterPath(lastPath);
	}
	final String path= dialog.open();
	if (path == null)
	return;

	JavaPlugin.getDefault().getDialogSettings().put(DIALOGSTORE_LASTSAVEPATH, dialog.getFilterPath());

	final File file= new File(path);
	if (file.exists() && !MessageDialog.openQuestion(fComposite.getShell(), FormatterMessages.CodingStyleConfigurationBlock_save_profile_overwrite_title, Messages.format(FormatterMessages.CodingStyleConfigurationBlock_save_profile_overwrite_message, path))) {
	return;
	}

	final Collection profiles= new ArrayList();
	profiles.add(fProfileManager.getSelected());
	try {
	ProfileStore.writeProfilesToFile(profiles, file);
	} catch (CoreException e) {
	final String title= FormatterMessages.CodingStyleConfigurationBlock_save_profile_error_title;
	final String message= FormatterMessages.CodingStyleConfigurationBlock_save_profile_error_message;
	ExceptionHandler.handle(e, fComposite.getShell(), title, message);
	}
	}

	private void loadButtonPressed() {
	final FileDialog dialog= new FileDialog(fComposite.getShell(), SWT.OPEN);
	dialog.setText(FormatterMessages.CodingStyleConfigurationBlock_load_profile_dialog_title);
	dialog.setFilterExtensions(new String [] {"*.xml"}); //$NON-NLS-1$
	final String lastPath= JavaPlugin.getDefault().getDialogSettings().get(DIALOGSTORE_LASTLOADPATH);
	if (lastPath != null) {
	dialog.setFilterPath(lastPath);
	}
	final String path= dialog.open();
	if (path == null)
	return;
	JavaPlugin.getDefault().getDialogSettings().put(DIALOGSTORE_LASTLOADPATH, dialog.getFilterPath());

	final File file= new File(path);
	Collection profiles= null;
	try {
	profiles= ProfileStore.readProfilesFromFile(file);
	} catch (CoreException e) {
	final String title= FormatterMessages.CodingStyleConfigurationBlock_load_profile_error_title;
	final String message= FormatterMessages.CodingStyleConfigurationBlock_load_profile_error_message;
	ExceptionHandler.handle(e, fComposite.getShell(), title, message);
	}
	if (profiles == null \|\| profiles.isEmpty())
	return;

	final CustomProfile profile= (CustomProfile)profiles.iterator().next();

	if (ProfileVersioner.getVersionStatus(profile) > 0) {
	final String title= FormatterMessages.CodingStyleConfigurationBlock_load_profile_error_too_new_title;
	final String message= FormatterMessages.CodingStyleConfigurationBlock_load_profile_error_too_new_message;
	MessageDialog.openWarning(fComposite.getShell(), title, message);
	}

	if (fProfileManager.containsName(profile.getName())) {
	final AlreadyExistsDialog aeDialog= new AlreadyExistsDialog(fComposite.getShell(), profile, fProfileManager);
	if (aeDialog.open() != Window.OK)
	return;
	}
	ProfileVersioner.updateAndComplete(profile);
	fProfileManager.addProfile(profile);
	}
	}

	private class PreviewController implements Observer {

	public PreviewController() {
	fProfileManager.addObserver(this);
	fJavaPreview.setWorkingValues(fProfileManager.getSelected().getSettings());
	fJavaPreview.update();
	}

	public void update(Observable o, Object arg) {
	final int value= ((Integer)arg).intValue();
	switch (value) {
	case ProfileManager.PROFILE_CREATED_EVENT:
	case ProfileManager.PROFILE_DELETED_EVENT:
	case ProfileManager.SELECTION_CHANGED_EVENT:
	case ProfileManager.SETTINGS_CHANGED_EVENT:
	fJavaPreview.setWorkingValues(((ProfileManager)o).getSelected().getSettings());
	fJavaPreview.update();
	}
	}

	}


	/**
	* Some Java source code used for preview.
	*/
	private final static String PREVIEW=
	"/*\n " + //$NON-NLS-1$
	FormatterMessages.CodingStyleConfigurationBlock_preview_title +
	"\n*/\n\n" + //$NON-NLS-1$
	"package mypackage; import java.util.LinkedList; public class MyIntStack {" + //$NON-NLS-1$
	"private final LinkedList fStack;" + //$NON-NLS-1$
	"public MyIntStack(){fStack= new LinkedList();}" + //$NON-NLS-1$
	"public int pop(){return ((Integer)fStack.removeFirst()).intValue();}" + //$NON-NLS-1$
	"public void push(int elem){fStack.addFirst(new Integer(elem));}" + //$NON-NLS-1$
	"public boolean isEmpty() {return fStack.isEmpty();}" + //$NON-NLS-1$
	"}"; //$NON-NLS-1$


	/**
	* The GUI controls
	*/
	protected Composite fComposite;
	protected Combo fProfileCombo;
	protected Button fEditButton;
	protected Button fRenameButton;
	protected Button fDeleteButton;
	protected Button fNewButton;
	protected Button fLoadButton;
	protected Button fSaveButton;

	/**
	* The ProfileManager, the model of this page.
	*/
	protected final ProfileManager fProfileManager;

	/**
	* The JavaPreview.
	*/
	protected CompilationUnitPreview fJavaPreview;
	private PixelConverter fPixConv;

	private IScopeContext fCurrContext;

	/**
	* Create a new <code>CodeFormatterConfigurationBlock</code>.
	*/
	public CodeFormatterConfigurationBlock(IProject project) {
	List profiles= null;
	try {
	profiles= ProfileStore.readProfiles();
	} catch (CoreException e) {
	JavaPlugin.log(e);
	}

	if (profiles == null)
	profiles= new ArrayList();

	if (project != null) {
	fCurrContext= new ProjectScope(project);
	} else {
	fCurrContext= new InstanceScope();
	}

	fProfileManager= new ProfileManager(profiles, fCurrContext);

	new StoreUpdater();
	}

	/**
	* Create the contents
	* @param parent Parent composite
	* @return Created control
	*/
	public Composite createContents(Composite parent) {

	final int numColumns = 5;

	fPixConv = new PixelConverter(parent);
	fComposite = createComposite(parent, numColumns);

	fProfileCombo= createProfileCombo(fComposite, numColumns - 3, fPixConv.convertWidthInCharsToPixels(20));
	fEditButton= createButton(fComposite, FormatterMessages.CodingStyleConfigurationBlock_edit_button_desc, GridData.HORIZONTAL_ALIGN_BEGINNING);
	fRenameButton= createButton(fComposite, FormatterMessages.CodingStyleConfigurationBlock_rename_button_desc, GridData.HORIZONTAL_ALIGN_BEGINNING);
	fDeleteButton= createButton(fComposite, FormatterMessages.CodingStyleConfigurationBlock_remove_button_desc, GridData.HORIZONTAL_ALIGN_BEGINNING);

	final Composite group= createComposite(fComposite, 4);
	final GridData groupData= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
	groupData.horizontalSpan= numColumns;
	group.setLayoutData(groupData);

	fNewButton= createButton(group, FormatterMessages.CodingStyleConfigurationBlock_new_button_desc, GridData.HORIZONTAL_ALIGN_BEGINNING);
	((GridData)createLabel(group, "", 1).getLayoutData()).grabExcessHorizontalSpace= true; //$NON-NLS-1$
	fLoadButton= createButton(group, FormatterMessages.CodingStyleConfigurationBlock_load_button_desc, GridData.HORIZONTAL_ALIGN_END);
	fSaveButton= createButton(group, FormatterMessages.CodingStyleConfigurationBlock_save_button_desc, GridData.HORIZONTAL_ALIGN_END);

	createLabel(fComposite, FormatterMessages.CodingStyleConfigurationBlock_preview_label_text, numColumns);
	configurePreview(fComposite, numColumns);

	new ButtonController();
	new ProfileComboController();
	new PreviewController();

	return fComposite;
	}


	private static Button createButton(Composite composite, String text, final int style) {
	final Button button= new Button(composite, SWT.PUSH);
	button.setFont(composite.getFont());
	button.setText(text);

	final GridData gd= new GridData(style);
	gd.widthHint= SWTUtil.getButtonWidthHint(button);
	button.setLayoutData(gd);
	return button;
	}

	private static Combo createProfileCombo(Composite composite, int span, int widthHint) {
	final GridData gd = new GridData(GridData.FILL_HORIZONTAL);
	gd.horizontalSpan = span;
	gd.widthHint= widthHint;

	final Combo combo= new Combo(composite, SWT.DROP_DOWN \| SWT.READ_ONLY );
	combo.setFont(composite.getFont());
	combo.setLayoutData(gd);
	return combo;
	}

	private Label createLabel(Composite composite, String text, int numColumns) {
	final GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
	gd.horizontalSpan = numColumns;
	gd.widthHint= 0;

	final Label label = new Label(composite, SWT.WRAP);
	label.setFont(composite.getFont());
	label.setText(text);
	label.setLayoutData(gd);
	return label;
	}

	private Composite createComposite(Composite parent, int numColumns) {
	final Composite composite = new Composite(parent, SWT.NONE);
	composite.setFont(parent.getFont());

	final GridLayout layout = new GridLayout(numColumns, false);
	layout.marginHeight = 0;
	layout.marginWidth = 0;
	composite.setLayout(layout);
	return composite;
	}

	private void configurePreview(Composite composite, int numColumns) {
	fJavaPreview= new CompilationUnitPreview(fProfileManager.getSelected().getSettings(), composite);
	fJavaPreview.setPreviewText(PREVIEW);

	final GridData gd = new GridData(GridData.FILL_VERTICAL \| GridData.HORIZONTAL_ALIGN_FILL);
	gd.horizontalSpan = numColumns;
	gd.verticalSpan= 7;
	gd.widthHint = 0;
	gd.heightHint = 0;
	fJavaPreview.getControl().setLayoutData(gd);
	}

	public final boolean hasProjectSpecificOptions(IProject project) {
	if (project != null) {
	return ProfileManager.hasProjectSpecificSettings(new ProjectScope(project));
	}
	return false;
	}

	public boolean performOk() {
	return true;
	}

	public void performDefaults() {
	Profile profile= fProfileManager.getProfile(ProfileManager.DEFAULT_PROFILE);
	if (profile != null) {
	int defaultIndex= fProfileManager.getSortedProfiles().indexOf(profile);
	if (defaultIndex != -1) {
	fProfileManager.setSelected(profile);
	}
	}
	}

	public void dispose() {
	}

	public void enableProjectSpecificSettings(boolean useProjectSpecificSettings) {
	if (useProjectSpecificSettings) {
	fProfileManager.commitChanges(fCurrContext);
	} else {
	fProfileManager.clearAllSettings(fCurrContext);
	}
	}


	}