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

 /*******************************************************************************
  * Copyright (c) 2000, 2007 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;

 import org.eclipse.core.runtime.IStatus;

 import org.eclipse.swt.SWT;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;

 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.preference.PreferencePage;
 import org.eclipse.jface.resource.JFaceResources;

 import org.eclipse.ui.IWorkbench;
 import org.eclipse.ui.IWorkbenchPreferencePage;
 import org.eclipse.ui.PlatformUI;

 import org.eclipse.jdt.ui.PreferenceConstants;

 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
 import org.eclipse.jdt.internal.ui.JavaPlugin;
 import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
 import org.eclipse.jdt.internal.ui.dialogs.StatusUtil;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.DialogField;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.IDialogFieldListener;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.LayoutUtil;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.SelectionButtonDialogField;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.Separator;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringDialogField;

 public class AppearancePreferencePage extends PreferencePage implements IWorkbenchPreferencePage {

 	private static final String SHOW_CU_CHILDREN= PreferenceConstants.SHOW_CU_CHILDREN;
 	private static final String PREF_METHOD_RETURNTYPE= PreferenceConstants.APPEARANCE_METHOD_RETURNTYPE;
 	private static final String PREF_METHOD_TYPEPARAMETERS= PreferenceConstants.APPEARANCE_METHOD_TYPEPARAMETERS;
 	private static final String PREF_COMPRESS_PACKAGE_NAMES= PreferenceConstants.APPEARANCE_COMPRESS_PACKAGE_NAMES;
 	private static final String PREF_PKG_NAME_PATTERN_FOR_PKG_VIEW= PreferenceConstants.APPEARANCE_PKG_NAME_PATTERN_FOR_PKG_VIEW;
 	private static final String STACK_BROWSING_VIEWS_VERTICALLY= PreferenceConstants.BROWSING_STACK_VERTICALLY;
 	private static final String PREF_FOLD_PACKAGES_IN_PACKAGE_EXPLORER= PreferenceConstants.APPEARANCE_FOLD_PACKAGES_IN_PACKAGE_EXPLORER;
 	private static final String PREF_CATEGORY= PreferenceConstants.APPEARANCE_CATEGORY;

 	public static final String PREF_COLORED_LABELS= "colored_labels_in_views"; //$NON-NLS-1$


 	private SelectionButtonDialogField fShowMethodReturnType;
 	private SelectionButtonDialogField fShowCategory;
 	private SelectionButtonDialogField fCompressPackageNames;
 	private SelectionButtonDialogField fStackBrowsingViewsVertically;
 	private SelectionButtonDialogField fShowMembersInPackageView;
 	private StringDialogField fPackageNamePattern;
 	private SelectionButtonDialogField fFoldPackagesInPackageExplorer;
 	private SelectionButtonDialogField fShowMethodTypeParameters;
 	private SelectionButtonDialogField fShowColoredLabels;

 	public AppearancePreferencePage() {
 		setPreferenceStore(JavaPlugin.getDefault().getPreferenceStore());
 		setDescription(PreferencesMessages.AppearancePreferencePage_description);

 		IDialogFieldListener listener= new IDialogFieldListener() {
 			public void dialogFieldChanged(DialogField field) {
 				doDialogFieldChanged(field);
 			}
 		};

 		fShowMethodReturnType= new SelectionButtonDialogField(SWT.CHECK);
 		fShowMethodReturnType.setDialogFieldListener(listener);
 		fShowMethodReturnType.setLabelText(PreferencesMessages.AppearancePreferencePage_methodreturntype_label);

 		fShowMethodTypeParameters= new SelectionButtonDialogField(SWT.CHECK);
 		fShowMethodTypeParameters.setDialogFieldListener(listener);
 		fShowMethodTypeParameters.setLabelText(PreferencesMessages.AppearancePreferencePage_methodtypeparams_label);

 		fShowCategory= new SelectionButtonDialogField(SWT.CHECK);
 		fShowCategory.setDialogFieldListener(listener);
 		fShowCategory.setLabelText(PreferencesMessages.AppearancePreferencePage_showCategory_label);

 		fShowMembersInPackageView= new SelectionButtonDialogField(SWT.CHECK);
 		fShowMembersInPackageView.setDialogFieldListener(listener);
 		fShowMembersInPackageView.setLabelText(PreferencesMessages.AppearancePreferencePage_showMembersInPackagesView);

 		fStackBrowsingViewsVertically= new SelectionButtonDialogField(SWT.CHECK);
 		fStackBrowsingViewsVertically.setDialogFieldListener(listener);
 		fStackBrowsingViewsVertically.setLabelText(PreferencesMessages.AppearancePreferencePage_stackViewsVerticallyInTheJavaBrowsingPerspective);

 		fFoldPackagesInPackageExplorer= new SelectionButtonDialogField(SWT.CHECK);
 		fFoldPackagesInPackageExplorer.setDialogFieldListener(listener);
 		fFoldPackagesInPackageExplorer.setLabelText(PreferencesMessages.AppearancePreferencePage_foldEmptyPackages);

 		fCompressPackageNames= new SelectionButtonDialogField(SWT.CHECK);
 		fCompressPackageNames.setDialogFieldListener(listener);
 		fCompressPackageNames.setLabelText(PreferencesMessages.AppearancePreferencePage_pkgNamePatternEnable_label);

 		fPackageNamePattern= new StringDialogField();
 		fPackageNamePattern.setDialogFieldListener(listener);
 		fPackageNamePattern.setLabelText(PreferencesMessages.AppearancePreferencePage_pkgNamePattern_label);

 		fShowColoredLabels= new SelectionButtonDialogField(SWT.CHECK);
 		fShowColoredLabels.setDialogFieldListener(listener);
 		fShowColoredLabels.setLabelText(PreferencesMessages.AppearancePreferencePage_coloredlabels_label);
 	}

 	private void initFields() {
 		IPreferenceStore prefs= getPreferenceStore();
 		fShowMethodReturnType.setSelection(prefs.getBoolean(PREF_METHOD_RETURNTYPE));
 		fShowMethodTypeParameters.setSelection(prefs.getBoolean(PREF_METHOD_TYPEPARAMETERS));
 		fShowMembersInPackageView.setSelection(prefs.getBoolean(SHOW_CU_CHILDREN));
 		fShowCategory.setSelection(prefs.getBoolean(PREF_CATEGORY));
 		fStackBrowsingViewsVertically.setSelection(prefs.getBoolean(STACK_BROWSING_VIEWS_VERTICALLY));
 		fPackageNamePattern.setText(prefs.getString(PREF_PKG_NAME_PATTERN_FOR_PKG_VIEW));
 		fCompressPackageNames.setSelection(prefs.getBoolean(PREF_COMPRESS_PACKAGE_NAMES));
 		fPackageNamePattern.setEnabled(fCompressPackageNames.isSelected());
 		fFoldPackagesInPackageExplorer.setSelection(prefs.getBoolean(PREF_FOLD_PACKAGES_IN_PACKAGE_EXPLORER));

 		fShowColoredLabels.setSelection(prefs.getBoolean(PREF_COLORED_LABELS));
 	}

 	/*
 	 * @see PreferencePage#createControl(Composite)
 	 */
 	public void createControl(Composite parent) {
 		super.createControl(parent);
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IJavaHelpContextIds.APPEARANCE_PREFERENCE_PAGE);
 	}

 	/*
 	 * @see PreferencePage#createContents(Composite)
 	 */
 	protected Control createContents(Composite parent) {
 		initializeDialogUnits(parent);
 		int nColumns= 1;

 		Composite result= new Composite(parent, SWT.NONE);
 		result.setFont(parent.getFont());

 		GridLayout layout= new GridLayout();
 		layout.marginHeight= convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
 		layout.marginWidth= 0;
 		layout.numColumns= nColumns;
 		result.setLayout(layout);

 		fShowMethodReturnType.doFillIntoGrid(result, nColumns);
 		fShowMethodTypeParameters.doFillIntoGrid(result, nColumns);
 		fShowCategory.doFillIntoGrid(result, nColumns);
 		fShowMembersInPackageView.doFillIntoGrid(result, nColumns);
 		fShowColoredLabels.doFillIntoGrid(result, nColumns);
 		fFoldPackagesInPackageExplorer.doFillIntoGrid(result, nColumns);

 		new Separator().doFillIntoGrid(result, nColumns);

 		fCompressPackageNames.doFillIntoGrid(result, nColumns);
 		fPackageNamePattern.doFillIntoGrid(result, 2);
 		LayoutUtil.setHorizontalGrabbing(fPackageNamePattern.getTextControl(null));
 		LayoutUtil.setWidthHint(fPackageNamePattern.getLabelControl(null), convertWidthInCharsToPixels(65));

 		new Separator().doFillIntoGrid(result, nColumns);
 		fStackBrowsingViewsVertically.doFillIntoGrid(result, nColumns);

 		String noteTitle= PreferencesMessages.AppearancePreferencePage_note;
 		String noteMessage= PreferencesMessages.AppearancePreferencePage_preferenceOnlyEffectiveForNewPerspectives;
 		Composite noteControl= createNoteComposite(JFaceResources.getDialogFont(), result, noteTitle, noteMessage);
 		GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 		gd.horizontalSpan= 2;
 		noteControl.setLayoutData(gd);

 		initFields();

 		Dialog.applyDialogFont(result);
 		return result;
 	}

 	private void doDialogFieldChanged(DialogField field) {
 		if (field == fCompressPackageNames)
 			fPackageNamePattern.setEnabled(fCompressPackageNames.isSelected());

 		updateStatus(getValidationStatus());
 	}

 	private IStatus getValidationStatus(){
 		if (fCompressPackageNames.isSelected() && fPackageNamePattern.getText().equals("")) //$NON-NLS-1$
 			return new StatusInfo(IStatus.ERROR, PreferencesMessages.AppearancePreferencePage_packageNameCompressionPattern_error_isEmpty);
 		else
 			return new StatusInfo();
 	}

 	private void updateStatus(IStatus status) {
 		setValid(!status.matches(IStatus.ERROR));
 		StatusUtil.applyToStatusLine(this, status);
 	}

 	/*
 	 * @see IWorkbenchPreferencePage#init(IWorkbench)
 	 */
 	public void init(IWorkbench workbench) {
 	}

 	/*
 	 * @see IPreferencePage#performOk()
 	 */
 	public boolean performOk() {
 		IPreferenceStore prefs= getPreferenceStore();
 		prefs.setValue(PREF_METHOD_RETURNTYPE, fShowMethodReturnType.isSelected());
 		prefs.setValue(PREF_METHOD_TYPEPARAMETERS, fShowMethodTypeParameters.isSelected());
 		prefs.setValue(PREF_CATEGORY, fShowCategory.isSelected());
 		prefs.setValue(SHOW_CU_CHILDREN, fShowMembersInPackageView.isSelected());
 		prefs.setValue(STACK_BROWSING_VIEWS_VERTICALLY, fStackBrowsingViewsVertically.isSelected());
 		prefs.setValue(PREF_PKG_NAME_PATTERN_FOR_PKG_VIEW, fPackageNamePattern.getText());
 		prefs.setValue(PREF_COMPRESS_PACKAGE_NAMES, fCompressPackageNames.isSelected());
 		prefs.setValue(PREF_FOLD_PACKAGES_IN_PACKAGE_EXPLORER, fFoldPackagesInPackageExplorer.isSelected());
 		prefs.setValue(PREF_COLORED_LABELS, fShowColoredLabels.isSelected());
 		JavaPlugin.getDefault().savePluginPreferences();
 		return super.performOk();
 	}

 	/*
 	 * @see PreferencePage#performDefaults()
 	 */
 	protected void performDefaults() {
 		IPreferenceStore prefs= getPreferenceStore();
 		fShowMethodReturnType.setSelection(prefs.getDefaultBoolean(PREF_METHOD_RETURNTYPE));
 		fShowMethodTypeParameters.setSelection(prefs.getDefaultBoolean(PREF_METHOD_TYPEPARAMETERS));
 		fShowCategory.setSelection(prefs.getDefaultBoolean(PREF_CATEGORY));
 		fShowMembersInPackageView.setSelection(prefs.getDefaultBoolean(SHOW_CU_CHILDREN));
 		fStackBrowsingViewsVertically.setSelection(prefs.getDefaultBoolean(STACK_BROWSING_VIEWS_VERTICALLY));
 		fPackageNamePattern.setText(prefs.getDefaultString(PREF_PKG_NAME_PATTERN_FOR_PKG_VIEW));
 		fCompressPackageNames.setSelection(prefs.getDefaultBoolean(PREF_COMPRESS_PACKAGE_NAMES));
 		fFoldPackagesInPackageExplorer.setSelection(prefs.getDefaultBoolean(PREF_FOLD_PACKAGES_IN_PACKAGE_EXPLORER));
 		fShowColoredLabels.setSelection(false);
 		super.performDefaults();
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2007 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;

	import org.eclipse.core.runtime.IStatus;

	import org.eclipse.swt.SWT;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;

	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.preference.IPreferenceStore;
	import org.eclipse.jface.preference.PreferencePage;
	import org.eclipse.jface.resource.JFaceResources;

	import org.eclipse.ui.IWorkbench;
	import org.eclipse.ui.IWorkbenchPreferencePage;
	import org.eclipse.ui.PlatformUI;

	import org.eclipse.jdt.ui.PreferenceConstants;

	import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
	import org.eclipse.jdt.internal.ui.JavaPlugin;
	import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
	import org.eclipse.jdt.internal.ui.dialogs.StatusUtil;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.DialogField;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.IDialogFieldListener;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.LayoutUtil;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.SelectionButtonDialogField;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.Separator;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringDialogField;

	public class AppearancePreferencePage extends PreferencePage implements IWorkbenchPreferencePage {

	private static final String SHOW_CU_CHILDREN= PreferenceConstants.SHOW_CU_CHILDREN;
	private static final String PREF_METHOD_RETURNTYPE= PreferenceConstants.APPEARANCE_METHOD_RETURNTYPE;
	private static final String PREF_METHOD_TYPEPARAMETERS= PreferenceConstants.APPEARANCE_METHOD_TYPEPARAMETERS;
	private static final String PREF_COMPRESS_PACKAGE_NAMES= PreferenceConstants.APPEARANCE_COMPRESS_PACKAGE_NAMES;
	private static final String PREF_PKG_NAME_PATTERN_FOR_PKG_VIEW= PreferenceConstants.APPEARANCE_PKG_NAME_PATTERN_FOR_PKG_VIEW;
	private static final String STACK_BROWSING_VIEWS_VERTICALLY= PreferenceConstants.BROWSING_STACK_VERTICALLY;
	private static final String PREF_FOLD_PACKAGES_IN_PACKAGE_EXPLORER= PreferenceConstants.APPEARANCE_FOLD_PACKAGES_IN_PACKAGE_EXPLORER;
	private static final String PREF_CATEGORY= PreferenceConstants.APPEARANCE_CATEGORY;

	public static final String PREF_COLORED_LABELS= "colored_labels_in_views"; //$NON-NLS-1$


	private SelectionButtonDialogField fShowMethodReturnType;
	private SelectionButtonDialogField fShowCategory;
	private SelectionButtonDialogField fCompressPackageNames;
	private SelectionButtonDialogField fStackBrowsingViewsVertically;
	private SelectionButtonDialogField fShowMembersInPackageView;
	private StringDialogField fPackageNamePattern;
	private SelectionButtonDialogField fFoldPackagesInPackageExplorer;
	private SelectionButtonDialogField fShowMethodTypeParameters;
	private SelectionButtonDialogField fShowColoredLabels;

	public AppearancePreferencePage() {
	setPreferenceStore(JavaPlugin.getDefault().getPreferenceStore());
	setDescription(PreferencesMessages.AppearancePreferencePage_description);

	IDialogFieldListener listener= new IDialogFieldListener() {
	public void dialogFieldChanged(DialogField field) {
	doDialogFieldChanged(field);
	}
	};

	fShowMethodReturnType= new SelectionButtonDialogField(SWT.CHECK);
	fShowMethodReturnType.setDialogFieldListener(listener);
	fShowMethodReturnType.setLabelText(PreferencesMessages.AppearancePreferencePage_methodreturntype_label);

	fShowMethodTypeParameters= new SelectionButtonDialogField(SWT.CHECK);
	fShowMethodTypeParameters.setDialogFieldListener(listener);
	fShowMethodTypeParameters.setLabelText(PreferencesMessages.AppearancePreferencePage_methodtypeparams_label);

	fShowCategory= new SelectionButtonDialogField(SWT.CHECK);
	fShowCategory.setDialogFieldListener(listener);
	fShowCategory.setLabelText(PreferencesMessages.AppearancePreferencePage_showCategory_label);

	fShowMembersInPackageView= new SelectionButtonDialogField(SWT.CHECK);
	fShowMembersInPackageView.setDialogFieldListener(listener);
	fShowMembersInPackageView.setLabelText(PreferencesMessages.AppearancePreferencePage_showMembersInPackagesView);

	fStackBrowsingViewsVertically= new SelectionButtonDialogField(SWT.CHECK);
	fStackBrowsingViewsVertically.setDialogFieldListener(listener);
	fStackBrowsingViewsVertically.setLabelText(PreferencesMessages.AppearancePreferencePage_stackViewsVerticallyInTheJavaBrowsingPerspective);

	fFoldPackagesInPackageExplorer= new SelectionButtonDialogField(SWT.CHECK);
	fFoldPackagesInPackageExplorer.setDialogFieldListener(listener);
	fFoldPackagesInPackageExplorer.setLabelText(PreferencesMessages.AppearancePreferencePage_foldEmptyPackages);

	fCompressPackageNames= new SelectionButtonDialogField(SWT.CHECK);
	fCompressPackageNames.setDialogFieldListener(listener);
	fCompressPackageNames.setLabelText(PreferencesMessages.AppearancePreferencePage_pkgNamePatternEnable_label);

	fPackageNamePattern= new StringDialogField();
	fPackageNamePattern.setDialogFieldListener(listener);
	fPackageNamePattern.setLabelText(PreferencesMessages.AppearancePreferencePage_pkgNamePattern_label);

	fShowColoredLabels= new SelectionButtonDialogField(SWT.CHECK);
	fShowColoredLabels.setDialogFieldListener(listener);
	fShowColoredLabels.setLabelText(PreferencesMessages.AppearancePreferencePage_coloredlabels_label);
	}

	private void initFields() {
	IPreferenceStore prefs= getPreferenceStore();
	fShowMethodReturnType.setSelection(prefs.getBoolean(PREF_METHOD_RETURNTYPE));
	fShowMethodTypeParameters.setSelection(prefs.getBoolean(PREF_METHOD_TYPEPARAMETERS));
	fShowMembersInPackageView.setSelection(prefs.getBoolean(SHOW_CU_CHILDREN));
	fShowCategory.setSelection(prefs.getBoolean(PREF_CATEGORY));
	fStackBrowsingViewsVertically.setSelection(prefs.getBoolean(STACK_BROWSING_VIEWS_VERTICALLY));
	fPackageNamePattern.setText(prefs.getString(PREF_PKG_NAME_PATTERN_FOR_PKG_VIEW));
	fCompressPackageNames.setSelection(prefs.getBoolean(PREF_COMPRESS_PACKAGE_NAMES));
	fPackageNamePattern.setEnabled(fCompressPackageNames.isSelected());
	fFoldPackagesInPackageExplorer.setSelection(prefs.getBoolean(PREF_FOLD_PACKAGES_IN_PACKAGE_EXPLORER));

	fShowColoredLabels.setSelection(prefs.getBoolean(PREF_COLORED_LABELS));
	}

	/*
	* @see PreferencePage#createControl(Composite)
	*/
	public void createControl(Composite parent) {
	super.createControl(parent);
	PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IJavaHelpContextIds.APPEARANCE_PREFERENCE_PAGE);
	}

	/*
	* @see PreferencePage#createContents(Composite)
	*/
	protected Control createContents(Composite parent) {
	initializeDialogUnits(parent);
	int nColumns= 1;

	Composite result= new Composite(parent, SWT.NONE);
	result.setFont(parent.getFont());

	GridLayout layout= new GridLayout();
	layout.marginHeight= convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
	layout.marginWidth= 0;
	layout.numColumns= nColumns;
	result.setLayout(layout);

	fShowMethodReturnType.doFillIntoGrid(result, nColumns);
	fShowMethodTypeParameters.doFillIntoGrid(result, nColumns);
	fShowCategory.doFillIntoGrid(result, nColumns);
	fShowMembersInPackageView.doFillIntoGrid(result, nColumns);
	fShowColoredLabels.doFillIntoGrid(result, nColumns);
	fFoldPackagesInPackageExplorer.doFillIntoGrid(result, nColumns);

	new Separator().doFillIntoGrid(result, nColumns);

	fCompressPackageNames.doFillIntoGrid(result, nColumns);
	fPackageNamePattern.doFillIntoGrid(result, 2);
	LayoutUtil.setHorizontalGrabbing(fPackageNamePattern.getTextControl(null));
	LayoutUtil.setWidthHint(fPackageNamePattern.getLabelControl(null), convertWidthInCharsToPixels(65));

	new Separator().doFillIntoGrid(result, nColumns);
	fStackBrowsingViewsVertically.doFillIntoGrid(result, nColumns);

	String noteTitle= PreferencesMessages.AppearancePreferencePage_note;
	String noteMessage= PreferencesMessages.AppearancePreferencePage_preferenceOnlyEffectiveForNewPerspectives;
	Composite noteControl= createNoteComposite(JFaceResources.getDialogFont(), result, noteTitle, noteMessage);
	GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
	gd.horizontalSpan= 2;
	noteControl.setLayoutData(gd);

	initFields();

	Dialog.applyDialogFont(result);
	return result;
	}

	private void doDialogFieldChanged(DialogField field) {
	if (field == fCompressPackageNames)
	fPackageNamePattern.setEnabled(fCompressPackageNames.isSelected());

	updateStatus(getValidationStatus());
	}

	private IStatus getValidationStatus(){
	if (fCompressPackageNames.isSelected() && fPackageNamePattern.getText().equals("")) //$NON-NLS-1$
	return new StatusInfo(IStatus.ERROR, PreferencesMessages.AppearancePreferencePage_packageNameCompressionPattern_error_isEmpty);
	else
	return new StatusInfo();
	}

	private void updateStatus(IStatus status) {
	setValid(!status.matches(IStatus.ERROR));
	StatusUtil.applyToStatusLine(this, status);
	}

	/*
	* @see IWorkbenchPreferencePage#init(IWorkbench)
	*/
	public void init(IWorkbench workbench) {
	}

	/*
	* @see IPreferencePage#performOk()
	*/
	public boolean performOk() {
	IPreferenceStore prefs= getPreferenceStore();
	prefs.setValue(PREF_METHOD_RETURNTYPE, fShowMethodReturnType.isSelected());
	prefs.setValue(PREF_METHOD_TYPEPARAMETERS, fShowMethodTypeParameters.isSelected());
	prefs.setValue(PREF_CATEGORY, fShowCategory.isSelected());
	prefs.setValue(SHOW_CU_CHILDREN, fShowMembersInPackageView.isSelected());
	prefs.setValue(STACK_BROWSING_VIEWS_VERTICALLY, fStackBrowsingViewsVertically.isSelected());
	prefs.setValue(PREF_PKG_NAME_PATTERN_FOR_PKG_VIEW, fPackageNamePattern.getText());
	prefs.setValue(PREF_COMPRESS_PACKAGE_NAMES, fCompressPackageNames.isSelected());
	prefs.setValue(PREF_FOLD_PACKAGES_IN_PACKAGE_EXPLORER, fFoldPackagesInPackageExplorer.isSelected());
	prefs.setValue(PREF_COLORED_LABELS, fShowColoredLabels.isSelected());
	JavaPlugin.getDefault().savePluginPreferences();
	return super.performOk();
	}

	/*
	* @see PreferencePage#performDefaults()
	*/
	protected void performDefaults() {
	IPreferenceStore prefs= getPreferenceStore();
	fShowMethodReturnType.setSelection(prefs.getDefaultBoolean(PREF_METHOD_RETURNTYPE));
	fShowMethodTypeParameters.setSelection(prefs.getDefaultBoolean(PREF_METHOD_TYPEPARAMETERS));
	fShowCategory.setSelection(prefs.getDefaultBoolean(PREF_CATEGORY));
	fShowMembersInPackageView.setSelection(prefs.getDefaultBoolean(SHOW_CU_CHILDREN));
	fStackBrowsingViewsVertically.setSelection(prefs.getDefaultBoolean(STACK_BROWSING_VIEWS_VERTICALLY));
	fPackageNamePattern.setText(prefs.getDefaultString(PREF_PKG_NAME_PATTERN_FOR_PKG_VIEW));
	fCompressPackageNames.setSelection(prefs.getDefaultBoolean(PREF_COMPRESS_PACKAGE_NAMES));
	fFoldPackagesInPackageExplorer.setSelection(prefs.getDefaultBoolean(PREF_FOLD_PACKAGES_IN_PACKAGE_EXPLORER));
	fShowColoredLabels.setSelection(false);
	super.performDefaults();
	}
	}