bundles/org.eclipse.wst.xml.ui/src/org/eclipse/wst/xml/ui/internal/preferences/XMLSourcePreferencePage.java - sourceediting/webtools.sourceediting - Git at Google

 /*******************************************************************************
  * Copyright (c) 2001, 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
  *     Jens Lukowski/Innoopract - initial renaming/restructuring
  *
  *******************************************************************************/
 package org.eclipse.wst.xml.ui.internal.preferences;

 import java.util.Vector;

 import org.eclipse.core.runtime.Preferences;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.ModifyListener;
 import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Combo;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Group;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Spinner;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.IWorkbenchPreferencePage;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.wst.sse.ui.internal.preferences.ui.AbstractPreferencePage;
 import org.eclipse.wst.xml.core.internal.XMLCorePlugin;
 import org.eclipse.wst.xml.core.internal.preferences.XMLCorePreferenceNames;
 import org.eclipse.wst.xml.ui.internal.XMLUIMessages;
 import org.eclipse.wst.xml.ui.internal.XMLUIPlugin;
 import org.eclipse.wst.xml.ui.internal.editor.IHelpContextIds;

 public class XMLSourcePreferencePage extends AbstractPreferencePage implements ModifyListener, SelectionListener, IWorkbenchPreferencePage {
 	private final int MIN_INDENTATION_SIZE = 0;
 	private final int MAX_INDENTATION_SIZE = 16;

 	// Content Assist
 	protected Button fAutoPropose;
 	protected Label fAutoProposeLabel;
 	protected Text fAutoProposeText;
 	private Combo fSuggestionStrategyCombo;
 	private Vector fSuggestionStrategies = null;
 	protected Button fClearAllBlankLines;

 	// Formatting
 	protected Label fLineWidthLabel;
 	protected Text fLineWidthText;
 	protected Button fSplitMultiAttrs;
 	private Button fIndentUsingTabs;
 	private Button fIndentUsingSpaces;
 	private Spinner fIndentationSize;
 	private Button fPreservePCDATAContent;
 	private Button fAlignEndBracket;

 	// grammar constraints
 	protected Button fUseInferredGrammar;

 	protected Control createContents(Composite parent) {
 		Composite composite = (Composite) super.createContents(parent);
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IHelpContextIds.XML_PREFWEBX_SOURCE_HELPID);

 		createContentsForFormattingGroup(composite);
 		createContentsForContentAssistGroup(composite);
 		createContentsForGrammarConstraintsGroup(composite);
 		setSize(composite);
 		loadPreferences();

 		return composite;
 	}

 	protected void createContentsForContentAssistGroup(Composite parent) {
 		Group contentAssistGroup = createGroup(parent, 2);
 		contentAssistGroup.setText(XMLUIMessages.Content_assist_UI_);

 		fAutoPropose = createCheckBox(contentAssistGroup, XMLUIMessages.Automatically_make_suggest_UI_);
 		((GridData) fAutoPropose.getLayoutData()).horizontalSpan = 2;
 		fAutoPropose.addSelectionListener(this);

 		fAutoProposeLabel = createLabel(contentAssistGroup, XMLUIMessages.Prompt_when_these_characte_UI_);
 		fAutoProposeText = createTextField(contentAssistGroup);

 		createLabel(contentAssistGroup, XMLUIMessages.Suggestion_Strategy);
 		fSuggestionStrategyCombo = new Combo(contentAssistGroup, SWT.READ_ONLY);
 		fSuggestionStrategies = new Vector();
 		fSuggestionStrategyCombo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		fSuggestionStrategyCombo.add(XMLUIMessages.Suggestion_Strategy_Lax);
 		fSuggestionStrategies.add(XMLUIPreferenceNames.SUGGESTION_STRATEGY_VALUE_LAX);
 		fSuggestionStrategyCombo.add(XMLUIMessages.Suggestion_Strategy_Strict);
 		fSuggestionStrategies.add(XMLUIPreferenceNames.SUGGESTION_STRATEGY_VALUE_STRICT);
 	}

 	protected void createContentsForFormattingGroup(Composite parent) {
 		Group formattingGroup = createGroup(parent, 2);
 		formattingGroup.setText(XMLUIMessages.Formatting_UI_);

 		fLineWidthLabel = createLabel(formattingGroup, XMLUIMessages.Line_width__UI_);
 		fLineWidthText = new Text(formattingGroup, SWT.SINGLE | SWT.BORDER);
 		GridData gData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING | GridData.BEGINNING);
 		gData.widthHint = 25;
 		fLineWidthText.setLayoutData(gData);
 		fLineWidthText.addModifyListener(this);

 		fSplitMultiAttrs = createCheckBox(formattingGroup, XMLUIMessages.Split_multiple_attributes);
 		((GridData) fSplitMultiAttrs.getLayoutData()).horizontalSpan = 2;
 		fAlignEndBracket = createCheckBox(formattingGroup, XMLUIMessages.Align_final_bracket);
 		((GridData) fAlignEndBracket.getLayoutData()).horizontalSpan = 2;
 		fPreservePCDATAContent = createCheckBox(formattingGroup, XMLUIMessages.Preserve_PCDATA_Content);
 		((GridData) fPreservePCDATAContent.getLayoutData()).horizontalSpan = 2;
 		fClearAllBlankLines = createCheckBox(formattingGroup, XMLUIMessages.Clear_all_blank_lines_UI_);
 		((GridData) fClearAllBlankLines.getLayoutData()).horizontalSpan = 2;

 		fIndentUsingTabs = createRadioButton(formattingGroup, XMLUIMessages.Indent_using_tabs);
 		((GridData) fIndentUsingTabs.getLayoutData()).horizontalSpan = 2;

 		fIndentUsingSpaces = createRadioButton(formattingGroup, XMLUIMessages.Indent_using_spaces);
 		((GridData) fIndentUsingSpaces.getLayoutData()).horizontalSpan = 2;

 		createLabel(formattingGroup, XMLUIMessages.Indentation_size);
 		fIndentationSize = new Spinner(formattingGroup, SWT.READ_ONLY | SWT.BORDER);
 		GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
 		fIndentationSize.setLayoutData(gd);
 		fIndentationSize.setToolTipText(XMLUIMessages.Indentation_size_tip);
 		fIndentationSize.setMinimum(MIN_INDENTATION_SIZE);
 		fIndentationSize.setMaximum(MAX_INDENTATION_SIZE);
 		fIndentationSize.setIncrement(1);
 		fIndentationSize.setPageIncrement(4);
 		fIndentationSize.addModifyListener(this);
 	}

 	protected void createContentsForGrammarConstraintsGroup(Composite parent) {
 		Group grammarConstraintsGroup = createGroup(parent, 1);
 		grammarConstraintsGroup.setText(XMLUIMessages.Grammar_Constraints);
 		grammarConstraintsGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.GRAB_HORIZONTAL));

 		fUseInferredGrammar = createCheckBox(grammarConstraintsGroup, XMLUIMessages.Use_inferred_grammar_in_absence_of);
 	}

 	protected IPreferenceStore doGetPreferenceStore() {
 		return XMLUIPlugin.getDefault().getPreferenceStore();
 	}

 	protected void doSavePreferenceStore() {
 		XMLUIPlugin.getDefault().savePluginPreferences(); // editor
 		XMLCorePlugin.getDefault().savePluginPreferences(); // model
 	}

 	protected void enableValues() {
 		if (fAutoPropose != null) {
 			if (fAutoPropose.getSelection()) {
 				fAutoProposeLabel.setEnabled(true);
 				fAutoProposeText.setEnabled(true);
 			}
 			else {
 				fAutoProposeLabel.setEnabled(false);
 				fAutoProposeText.setEnabled(false);
 			}
 		}
 	}

 	protected Preferences getModelPreferences() {
 		return XMLCorePlugin.getDefault().getPluginPreferences();
 	}

 	/**
 	 * Return the currently selected suggestion strategy preference
 	 *
 	 * @return a suggestion strategy constant from XMLUIPreferenceNames
 	 */
 	private String getCurrentSuggestionStrategy() {
 		int i = fSuggestionStrategyCombo.getSelectionIndex();
 		if (i >= 0) {
 			return (String) (fSuggestionStrategies.elementAt(i));
 		}
 		return ""; //$NON-NLS-1$
 	}

 	protected void initializeValues() {
 		initializeValuesForFormattingGroup();
 		initializeValuesForContentAssistGroup();
 		initializeValuesForGrammarConstraintsGroup();
 	}

 	protected void initializeValuesForContentAssistGroup() {
 		// Content Assist
 		fAutoPropose.setSelection(getPreferenceStore().getBoolean(XMLUIPreferenceNames.AUTO_PROPOSE));
 		fAutoProposeText.setText(getPreferenceStore().getString(XMLUIPreferenceNames.AUTO_PROPOSE_CODE));
 		String suggestionStrategy = getPreferenceStore().getString(XMLUIPreferenceNames.SUGGESTION_STRATEGY);
 		if (suggestionStrategy.length() > 0) {
 			setCurrentSuggestionStrategy(suggestionStrategy);
 		}
 		else {
 			setCurrentSuggestionStrategy(XMLUIPreferenceNames.SUGGESTION_STRATEGY_VALUE_LAX);
 		}
 	}

 	protected void initializeValuesForFormattingGroup() {
 		// Formatting
 		fLineWidthText.setText(getModelPreferences().getString(XMLCorePreferenceNames.LINE_WIDTH));
 		fSplitMultiAttrs.setSelection(getModelPreferences().getBoolean(XMLCorePreferenceNames.SPLIT_MULTI_ATTRS));
 		fAlignEndBracket.setSelection(getModelPreferences().getBoolean(XMLCorePreferenceNames.ALIGN_END_BRACKET));
 		fClearAllBlankLines.setSelection(getModelPreferences().getBoolean(XMLCorePreferenceNames.CLEAR_ALL_BLANK_LINES));
 		fPreservePCDATAContent.setSelection(getModelPreferences().getBoolean(XMLCorePreferenceNames.PRESERVE_CDATACONTENT));

 		if (XMLCorePreferenceNames.TAB.equals(getModelPreferences().getString(XMLCorePreferenceNames.INDENTATION_CHAR))) {
 			fIndentUsingTabs.setSelection(true);
 			fIndentUsingSpaces.setSelection(false);
 		}
 		else {
 			fIndentUsingSpaces.setSelection(true);
 			fIndentUsingTabs.setSelection(false);
 		}

 		fIndentationSize.setSelection(getModelPreferences().getInt(XMLCorePreferenceNames.INDENTATION_SIZE));
 	}

 	protected void initializeValuesForGrammarConstraintsGroup() {
 		fUseInferredGrammar.setSelection(getPreferenceStore().getBoolean(XMLUIPreferenceNames.USE_INFERRED_GRAMMAR));
 	}

 	protected void performDefaults() {
 		performDefaultsForFormattingGroup();
 		performDefaultsForContentAssistGroup();
 		performDefaultsForGrammarConstraintsGroup();

 		validateValues();
 		enableValues();

 		super.performDefaults();
 	}

 	protected void performDefaultsForContentAssistGroup() {
 		// Content Assist
 		fAutoPropose.setSelection(getPreferenceStore().getDefaultBoolean(XMLUIPreferenceNames.AUTO_PROPOSE));
 		fAutoProposeText.setText(getPreferenceStore().getDefaultString(XMLUIPreferenceNames.AUTO_PROPOSE_CODE));
 		String suggestionStrategy = getPreferenceStore().getDefaultString(XMLUIPreferenceNames.SUGGESTION_STRATEGY);
 		if (suggestionStrategy.length() > 0) {
 			setCurrentSuggestionStrategy(suggestionStrategy);
 		}
 		else {
 			setCurrentSuggestionStrategy(XMLUIPreferenceNames.SUGGESTION_STRATEGY_VALUE_LAX);
 		}
 	}

 	protected void performDefaultsForFormattingGroup() {
 		// Formatting
 		fLineWidthText.setText(getModelPreferences().getDefaultString(XMLCorePreferenceNames.LINE_WIDTH));
 		fSplitMultiAttrs.setSelection(getModelPreferences().getDefaultBoolean(XMLCorePreferenceNames.SPLIT_MULTI_ATTRS));
 		fAlignEndBracket.setSelection(getModelPreferences().getDefaultBoolean(XMLCorePreferenceNames.ALIGN_END_BRACKET));
 		fClearAllBlankLines.setSelection(getModelPreferences().getDefaultBoolean(XMLCorePreferenceNames.CLEAR_ALL_BLANK_LINES));
 		fPreservePCDATAContent.setSelection(getModelPreferences().getDefaultBoolean(XMLCorePreferenceNames.PRESERVE_CDATACONTENT));

 		if (XMLCorePreferenceNames.TAB.equals(getModelPreferences().getDefaultString(XMLCorePreferenceNames.INDENTATION_CHAR))) {
 			fIndentUsingTabs.setSelection(true);
 			fIndentUsingSpaces.setSelection(false);
 		}
 		else {
 			fIndentUsingSpaces.setSelection(true);
 			fIndentUsingTabs.setSelection(false);
 		}
 		fIndentationSize.setSelection(getModelPreferences().getDefaultInt(XMLCorePreferenceNames.INDENTATION_SIZE));
 	}

 	protected void performDefaultsForGrammarConstraintsGroup() {
 		fUseInferredGrammar.setSelection(getPreferenceStore().getDefaultBoolean(XMLUIPreferenceNames.USE_INFERRED_GRAMMAR));
 	}

 	public boolean performOk() {
 		boolean result = super.performOk();

 		doSavePreferenceStore();

 		return result;
 	}

 	/**
 	 * Set a suggestion strategy in suggestion strategy combo box
 	 *
 	 * @param strategy
 	 */
 	private void setCurrentSuggestionStrategy(String strategy) {
 		// Clear the current selection.
 		fSuggestionStrategyCombo.clearSelection();
 		fSuggestionStrategyCombo.deselectAll();

 		int i = fSuggestionStrategies.indexOf(strategy);
 		if (i >= 0) {
 			fSuggestionStrategyCombo.select(i);
 		}
 	}

 	protected void storeValues() {
 		storeValuesForFormattingGroup();
 		storeValuesForContentAssistGroup();
 		storeValuesForGrammarConstraintsGroup();
 	}

 	protected void storeValuesForContentAssistGroup() {
 		// Content Assist
 		getPreferenceStore().setValue(XMLUIPreferenceNames.AUTO_PROPOSE, fAutoPropose.getSelection());
 		getPreferenceStore().setValue(XMLUIPreferenceNames.AUTO_PROPOSE_CODE, fAutoProposeText.getText());
 		getPreferenceStore().setValue(XMLUIPreferenceNames.SUGGESTION_STRATEGY, getCurrentSuggestionStrategy());
 	}

 	protected void storeValuesForFormattingGroup() {
 		// Formatting
 		getModelPreferences().setValue(XMLCorePreferenceNames.LINE_WIDTH, fLineWidthText.getText());
 		getModelPreferences().setValue(XMLCorePreferenceNames.SPLIT_MULTI_ATTRS, fSplitMultiAttrs.getSelection());
 		getModelPreferences().setValue(XMLCorePreferenceNames.ALIGN_END_BRACKET, fAlignEndBracket.getSelection());
 		getModelPreferences().setValue(XMLCorePreferenceNames.CLEAR_ALL_BLANK_LINES, fClearAllBlankLines.getSelection());
 		getModelPreferences().setValue(XMLCorePreferenceNames.PRESERVE_CDATACONTENT, fPreservePCDATAContent.getSelection());

 		if (fIndentUsingTabs.getSelection()) {
 			getModelPreferences().setValue(XMLCorePreferenceNames.INDENTATION_CHAR, XMLCorePreferenceNames.TAB);
 		}
 		else {
 			getModelPreferences().setValue(XMLCorePreferenceNames.INDENTATION_CHAR, XMLCorePreferenceNames.SPACE);
 		}
 		getModelPreferences().setValue(XMLCorePreferenceNames.INDENTATION_SIZE, fIndentationSize.getSelection());
 	}

 	protected void storeValuesForGrammarConstraintsGroup() {
 		getPreferenceStore().setValue(XMLUIPreferenceNames.USE_INFERRED_GRAMMAR, fUseInferredGrammar.getSelection());
 	}

 	protected void validateValues() {
 		boolean isError = false;
 		String widthText = null;

 		if (fLineWidthText != null) {
 			try {
 				widthText = fLineWidthText.getText();
 				int formattingLineWidth = Integer.parseInt(widthText);
 				if ((formattingLineWidth < WIDTH_VALIDATION_LOWER_LIMIT) || (formattingLineWidth > WIDTH_VALIDATION_UPPER_LIMIT)) {
 					throw new NumberFormatException();
 				}
 			}
 			catch (NumberFormatException nfexc) {
 				setInvalidInputMessage(widthText);
 				setValid(false);
 				isError = true;
 			}
 		}

 		int indentSize = 0;
 		if (fIndentationSize != null) {
 			try {
 				indentSize = fIndentationSize.getSelection();
 				if ((indentSize < MIN_INDENTATION_SIZE) || (indentSize > MAX_INDENTATION_SIZE)) {
 					throw new NumberFormatException();
 				}
 			}
 			catch (NumberFormatException nfexc) {
 				setInvalidInputMessage(Integer.toString(indentSize));
 				setValid(false);
 				isError = true;
 			}
 		}

 		if (!isError) {
 			setErrorMessage(null);
 			setValid(true);
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2001, 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
	* Jens Lukowski/Innoopract - initial renaming/restructuring
	*
	*******************************************************************************/
	package org.eclipse.wst.xml.ui.internal.preferences;

	import java.util.Vector;

	import org.eclipse.core.runtime.Preferences;
	import org.eclipse.jface.preference.IPreferenceStore;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.ModifyListener;
	import org.eclipse.swt.events.SelectionListener;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Combo;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Group;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Spinner;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.IWorkbenchPreferencePage;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.wst.sse.ui.internal.preferences.ui.AbstractPreferencePage;
	import org.eclipse.wst.xml.core.internal.XMLCorePlugin;
	import org.eclipse.wst.xml.core.internal.preferences.XMLCorePreferenceNames;
	import org.eclipse.wst.xml.ui.internal.XMLUIMessages;
	import org.eclipse.wst.xml.ui.internal.XMLUIPlugin;
	import org.eclipse.wst.xml.ui.internal.editor.IHelpContextIds;

	public class XMLSourcePreferencePage extends AbstractPreferencePage implements ModifyListener, SelectionListener, IWorkbenchPreferencePage {
	private final int MIN_INDENTATION_SIZE = 0;
	private final int MAX_INDENTATION_SIZE = 16;

	// Content Assist
	protected Button fAutoPropose;
	protected Label fAutoProposeLabel;
	protected Text fAutoProposeText;
	private Combo fSuggestionStrategyCombo;
	private Vector fSuggestionStrategies = null;
	protected Button fClearAllBlankLines;

	// Formatting
	protected Label fLineWidthLabel;
	protected Text fLineWidthText;
	protected Button fSplitMultiAttrs;
	private Button fIndentUsingTabs;
	private Button fIndentUsingSpaces;
	private Spinner fIndentationSize;
	private Button fPreservePCDATAContent;
	private Button fAlignEndBracket;

	// grammar constraints
	protected Button fUseInferredGrammar;

	protected Control createContents(Composite parent) {
	Composite composite = (Composite) super.createContents(parent);
	PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IHelpContextIds.XML_PREFWEBX_SOURCE_HELPID);

	createContentsForFormattingGroup(composite);
	createContentsForContentAssistGroup(composite);
	createContentsForGrammarConstraintsGroup(composite);
	setSize(composite);
	loadPreferences();

	return composite;
	}

	protected void createContentsForContentAssistGroup(Composite parent) {
	Group contentAssistGroup = createGroup(parent, 2);
	contentAssistGroup.setText(XMLUIMessages.Content_assist_UI_);

	fAutoPropose = createCheckBox(contentAssistGroup, XMLUIMessages.Automatically_make_suggest_UI_);
	((GridData) fAutoPropose.getLayoutData()).horizontalSpan = 2;
	fAutoPropose.addSelectionListener(this);

	fAutoProposeLabel = createLabel(contentAssistGroup, XMLUIMessages.Prompt_when_these_characte_UI_);
	fAutoProposeText = createTextField(contentAssistGroup);

	createLabel(contentAssistGroup, XMLUIMessages.Suggestion_Strategy);
	fSuggestionStrategyCombo = new Combo(contentAssistGroup, SWT.READ_ONLY);
	fSuggestionStrategies = new Vector();
	fSuggestionStrategyCombo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	fSuggestionStrategyCombo.add(XMLUIMessages.Suggestion_Strategy_Lax);
	fSuggestionStrategies.add(XMLUIPreferenceNames.SUGGESTION_STRATEGY_VALUE_LAX);
	fSuggestionStrategyCombo.add(XMLUIMessages.Suggestion_Strategy_Strict);
	fSuggestionStrategies.add(XMLUIPreferenceNames.SUGGESTION_STRATEGY_VALUE_STRICT);
	}

	protected void createContentsForFormattingGroup(Composite parent) {
	Group formattingGroup = createGroup(parent, 2);
	formattingGroup.setText(XMLUIMessages.Formatting_UI_);

	fLineWidthLabel = createLabel(formattingGroup, XMLUIMessages.Line_width__UI_);
	fLineWidthText = new Text(formattingGroup, SWT.SINGLE \| SWT.BORDER);
	GridData gData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING \| GridData.BEGINNING);
	gData.widthHint = 25;
	fLineWidthText.setLayoutData(gData);
	fLineWidthText.addModifyListener(this);

	fSplitMultiAttrs = createCheckBox(formattingGroup, XMLUIMessages.Split_multiple_attributes);
	((GridData) fSplitMultiAttrs.getLayoutData()).horizontalSpan = 2;
	fAlignEndBracket = createCheckBox(formattingGroup, XMLUIMessages.Align_final_bracket);
	((GridData) fAlignEndBracket.getLayoutData()).horizontalSpan = 2;
	fPreservePCDATAContent = createCheckBox(formattingGroup, XMLUIMessages.Preserve_PCDATA_Content);
	((GridData) fPreservePCDATAContent.getLayoutData()).horizontalSpan = 2;
	fClearAllBlankLines = createCheckBox(formattingGroup, XMLUIMessages.Clear_all_blank_lines_UI_);
	((GridData) fClearAllBlankLines.getLayoutData()).horizontalSpan = 2;

	fIndentUsingTabs = createRadioButton(formattingGroup, XMLUIMessages.Indent_using_tabs);
	((GridData) fIndentUsingTabs.getLayoutData()).horizontalSpan = 2;

	fIndentUsingSpaces = createRadioButton(formattingGroup, XMLUIMessages.Indent_using_spaces);
	((GridData) fIndentUsingSpaces.getLayoutData()).horizontalSpan = 2;

	createLabel(formattingGroup, XMLUIMessages.Indentation_size);
	fIndentationSize = new Spinner(formattingGroup, SWT.READ_ONLY \| SWT.BORDER);
	GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
	fIndentationSize.setLayoutData(gd);
	fIndentationSize.setToolTipText(XMLUIMessages.Indentation_size_tip);
	fIndentationSize.setMinimum(MIN_INDENTATION_SIZE);
	fIndentationSize.setMaximum(MAX_INDENTATION_SIZE);
	fIndentationSize.setIncrement(1);
	fIndentationSize.setPageIncrement(4);
	fIndentationSize.addModifyListener(this);
	}

	protected void createContentsForGrammarConstraintsGroup(Composite parent) {
	Group grammarConstraintsGroup = createGroup(parent, 1);
	grammarConstraintsGroup.setText(XMLUIMessages.Grammar_Constraints);
	grammarConstraintsGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL \| GridData.GRAB_HORIZONTAL));

	fUseInferredGrammar = createCheckBox(grammarConstraintsGroup, XMLUIMessages.Use_inferred_grammar_in_absence_of);
	}

	protected IPreferenceStore doGetPreferenceStore() {
	return XMLUIPlugin.getDefault().getPreferenceStore();
	}

	protected void doSavePreferenceStore() {
	XMLUIPlugin.getDefault().savePluginPreferences(); // editor
	XMLCorePlugin.getDefault().savePluginPreferences(); // model
	}

	protected void enableValues() {
	if (fAutoPropose != null) {
	if (fAutoPropose.getSelection()) {
	fAutoProposeLabel.setEnabled(true);
	fAutoProposeText.setEnabled(true);
	}
	else {
	fAutoProposeLabel.setEnabled(false);
	fAutoProposeText.setEnabled(false);
	}
	}
	}

	protected Preferences getModelPreferences() {
	return XMLCorePlugin.getDefault().getPluginPreferences();
	}

	/**
	* Return the currently selected suggestion strategy preference
	*
	* @return a suggestion strategy constant from XMLUIPreferenceNames
	*/
	private String getCurrentSuggestionStrategy() {
	int i = fSuggestionStrategyCombo.getSelectionIndex();
	if (i >= 0) {
	return (String) (fSuggestionStrategies.elementAt(i));
	}
	return ""; //$NON-NLS-1$
	}

	protected void initializeValues() {
	initializeValuesForFormattingGroup();
	initializeValuesForContentAssistGroup();
	initializeValuesForGrammarConstraintsGroup();
	}

	protected void initializeValuesForContentAssistGroup() {
	// Content Assist
	fAutoPropose.setSelection(getPreferenceStore().getBoolean(XMLUIPreferenceNames.AUTO_PROPOSE));
	fAutoProposeText.setText(getPreferenceStore().getString(XMLUIPreferenceNames.AUTO_PROPOSE_CODE));
	String suggestionStrategy = getPreferenceStore().getString(XMLUIPreferenceNames.SUGGESTION_STRATEGY);
	if (suggestionStrategy.length() > 0) {
	setCurrentSuggestionStrategy(suggestionStrategy);
	}
	else {
	setCurrentSuggestionStrategy(XMLUIPreferenceNames.SUGGESTION_STRATEGY_VALUE_LAX);
	}
	}

	protected void initializeValuesForFormattingGroup() {
	// Formatting
	fLineWidthText.setText(getModelPreferences().getString(XMLCorePreferenceNames.LINE_WIDTH));
	fSplitMultiAttrs.setSelection(getModelPreferences().getBoolean(XMLCorePreferenceNames.SPLIT_MULTI_ATTRS));
	fAlignEndBracket.setSelection(getModelPreferences().getBoolean(XMLCorePreferenceNames.ALIGN_END_BRACKET));
	fClearAllBlankLines.setSelection(getModelPreferences().getBoolean(XMLCorePreferenceNames.CLEAR_ALL_BLANK_LINES));
	fPreservePCDATAContent.setSelection(getModelPreferences().getBoolean(XMLCorePreferenceNames.PRESERVE_CDATACONTENT));

	if (XMLCorePreferenceNames.TAB.equals(getModelPreferences().getString(XMLCorePreferenceNames.INDENTATION_CHAR))) {
	fIndentUsingTabs.setSelection(true);
	fIndentUsingSpaces.setSelection(false);
	}
	else {
	fIndentUsingSpaces.setSelection(true);
	fIndentUsingTabs.setSelection(false);
	}

	fIndentationSize.setSelection(getModelPreferences().getInt(XMLCorePreferenceNames.INDENTATION_SIZE));
	}

	protected void initializeValuesForGrammarConstraintsGroup() {
	fUseInferredGrammar.setSelection(getPreferenceStore().getBoolean(XMLUIPreferenceNames.USE_INFERRED_GRAMMAR));
	}

	protected void performDefaults() {
	performDefaultsForFormattingGroup();
	performDefaultsForContentAssistGroup();
	performDefaultsForGrammarConstraintsGroup();

	validateValues();
	enableValues();

	super.performDefaults();
	}

	protected void performDefaultsForContentAssistGroup() {
	// Content Assist
	fAutoPropose.setSelection(getPreferenceStore().getDefaultBoolean(XMLUIPreferenceNames.AUTO_PROPOSE));
	fAutoProposeText.setText(getPreferenceStore().getDefaultString(XMLUIPreferenceNames.AUTO_PROPOSE_CODE));
	String suggestionStrategy = getPreferenceStore().getDefaultString(XMLUIPreferenceNames.SUGGESTION_STRATEGY);
	if (suggestionStrategy.length() > 0) {
	setCurrentSuggestionStrategy(suggestionStrategy);
	}
	else {
	setCurrentSuggestionStrategy(XMLUIPreferenceNames.SUGGESTION_STRATEGY_VALUE_LAX);
	}
	}

	protected void performDefaultsForFormattingGroup() {
	// Formatting
	fLineWidthText.setText(getModelPreferences().getDefaultString(XMLCorePreferenceNames.LINE_WIDTH));
	fSplitMultiAttrs.setSelection(getModelPreferences().getDefaultBoolean(XMLCorePreferenceNames.SPLIT_MULTI_ATTRS));
	fAlignEndBracket.setSelection(getModelPreferences().getDefaultBoolean(XMLCorePreferenceNames.ALIGN_END_BRACKET));
	fClearAllBlankLines.setSelection(getModelPreferences().getDefaultBoolean(XMLCorePreferenceNames.CLEAR_ALL_BLANK_LINES));
	fPreservePCDATAContent.setSelection(getModelPreferences().getDefaultBoolean(XMLCorePreferenceNames.PRESERVE_CDATACONTENT));

	if (XMLCorePreferenceNames.TAB.equals(getModelPreferences().getDefaultString(XMLCorePreferenceNames.INDENTATION_CHAR))) {
	fIndentUsingTabs.setSelection(true);
	fIndentUsingSpaces.setSelection(false);
	}
	else {
	fIndentUsingSpaces.setSelection(true);
	fIndentUsingTabs.setSelection(false);
	}
	fIndentationSize.setSelection(getModelPreferences().getDefaultInt(XMLCorePreferenceNames.INDENTATION_SIZE));
	}

	protected void performDefaultsForGrammarConstraintsGroup() {
	fUseInferredGrammar.setSelection(getPreferenceStore().getDefaultBoolean(XMLUIPreferenceNames.USE_INFERRED_GRAMMAR));
	}

	public boolean performOk() {
	boolean result = super.performOk();

	doSavePreferenceStore();

	return result;
	}

	/**
	* Set a suggestion strategy in suggestion strategy combo box
	*
	* @param strategy
	*/
	private void setCurrentSuggestionStrategy(String strategy) {
	// Clear the current selection.
	fSuggestionStrategyCombo.clearSelection();
	fSuggestionStrategyCombo.deselectAll();

	int i = fSuggestionStrategies.indexOf(strategy);
	if (i >= 0) {
	fSuggestionStrategyCombo.select(i);
	}
	}

	protected void storeValues() {
	storeValuesForFormattingGroup();
	storeValuesForContentAssistGroup();
	storeValuesForGrammarConstraintsGroup();
	}

	protected void storeValuesForContentAssistGroup() {
	// Content Assist
	getPreferenceStore().setValue(XMLUIPreferenceNames.AUTO_PROPOSE, fAutoPropose.getSelection());
	getPreferenceStore().setValue(XMLUIPreferenceNames.AUTO_PROPOSE_CODE, fAutoProposeText.getText());
	getPreferenceStore().setValue(XMLUIPreferenceNames.SUGGESTION_STRATEGY, getCurrentSuggestionStrategy());
	}

	protected void storeValuesForFormattingGroup() {
	// Formatting
	getModelPreferences().setValue(XMLCorePreferenceNames.LINE_WIDTH, fLineWidthText.getText());
	getModelPreferences().setValue(XMLCorePreferenceNames.SPLIT_MULTI_ATTRS, fSplitMultiAttrs.getSelection());
	getModelPreferences().setValue(XMLCorePreferenceNames.ALIGN_END_BRACKET, fAlignEndBracket.getSelection());
	getModelPreferences().setValue(XMLCorePreferenceNames.CLEAR_ALL_BLANK_LINES, fClearAllBlankLines.getSelection());
	getModelPreferences().setValue(XMLCorePreferenceNames.PRESERVE_CDATACONTENT, fPreservePCDATAContent.getSelection());

	if (fIndentUsingTabs.getSelection()) {
	getModelPreferences().setValue(XMLCorePreferenceNames.INDENTATION_CHAR, XMLCorePreferenceNames.TAB);
	}
	else {
	getModelPreferences().setValue(XMLCorePreferenceNames.INDENTATION_CHAR, XMLCorePreferenceNames.SPACE);
	}
	getModelPreferences().setValue(XMLCorePreferenceNames.INDENTATION_SIZE, fIndentationSize.getSelection());
	}

	protected void storeValuesForGrammarConstraintsGroup() {
	getPreferenceStore().setValue(XMLUIPreferenceNames.USE_INFERRED_GRAMMAR, fUseInferredGrammar.getSelection());
	}

	protected void validateValues() {
	boolean isError = false;
	String widthText = null;

	if (fLineWidthText != null) {
	try {
	widthText = fLineWidthText.getText();
	int formattingLineWidth = Integer.parseInt(widthText);
	if ((formattingLineWidth < WIDTH_VALIDATION_LOWER_LIMIT) \|\| (formattingLineWidth > WIDTH_VALIDATION_UPPER_LIMIT)) {
	throw new NumberFormatException();
	}
	}
	catch (NumberFormatException nfexc) {
	setInvalidInputMessage(widthText);
	setValid(false);
	isError = true;
	}
	}

	int indentSize = 0;
	if (fIndentationSize != null) {
	try {
	indentSize = fIndentationSize.getSelection();
	if ((indentSize < MIN_INDENTATION_SIZE) \|\| (indentSize > MAX_INDENTATION_SIZE)) {
	throw new NumberFormatException();
	}
	}
	catch (NumberFormatException nfexc) {
	setInvalidInputMessage(Integer.toString(indentSize));
	setValid(false);
	isError = true;
	}
	}

	if (!isError) {
	setErrorMessage(null);
	setValid(true);
	}
	}
	}