r/org.eclipse.statet.r.ui/src/org/eclipse/statet/internal/r/ui/preferences/RCodeStylePreferenceBlock.java - statet/org.eclipse.statet-r - Git at Google

 /*=============================================================================#
  # Copyright (c) 2007, 2020 Stephan Wahlbrink and others.
  #
  # This program and the accompanying materials are made available under the
  # terms of the Eclipse Public License 2.0 which is available at
  # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
  # which is available at https://www.apache.org/licenses/LICENSE-2.0.
  #
  # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
  #
  # Contributors:
  #     Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation
  #=============================================================================*/

 package org.eclipse.statet.internal.r.ui.preferences;

 import java.util.HashMap;
 import java.util.Map;

 import org.eclipse.core.databinding.UpdateValueStrategy;
 import org.eclipse.core.databinding.beans.typed.BeanProperties;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.jface.databinding.swt.typed.WidgetProperties;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.TabFolder;
 import org.eclipse.swt.widgets.TabItem;
 import org.eclipse.swt.widgets.Text;

 import org.eclipse.statet.jcommons.collections.ImCollections;
 import org.eclipse.statet.jcommons.collections.ImList;

 import org.eclipse.statet.ecommons.databinding.core.validation.IntegerValidator;
 import org.eclipse.statet.ecommons.databinding.jface.DataBindingSupport;
 import org.eclipse.statet.ecommons.preferences.core.Preference;
 import org.eclipse.statet.ecommons.preferences.ui.ManagedConfigurationBlock;
 import org.eclipse.statet.ecommons.runtime.core.StatusChangeListener;
 import org.eclipse.statet.ecommons.text.ui.settings.IndentSettingsUI;
 import org.eclipse.statet.ecommons.ui.util.LayoutUtils;

 import org.eclipse.statet.r.core.RCodeStyleSettings;


 /**
  * A PreferenceBlock for RCodeStyleSettings (code formatting preferences).
  */
 public class RCodeStylePreferenceBlock extends ManagedConfigurationBlock {
 	// in future supporting multiple profiles?
 	// -> we bind to bean not to preferences


 	private static class Operator {


 		private final String label;

 		private final String wsBeforeProp;
 		private final Preference<Boolean> wsBeforePref;
 		private final String wsAfterProp;
 		private final Preference<Boolean> wsAfterPref;

 		private Button wsBeforeControl;
 		private Button wsAfterControl;

 		public Operator(final String label,
 				final String wsBeforeProp, final Preference<Boolean> wsBeforePref,
 				final String wsAfterProp, final Preference<Boolean> wsAfterPref) {
 			this.label= label;
 			this.wsBeforeProp= wsBeforeProp;
 			this.wsBeforePref= wsBeforePref;
 			this.wsAfterProp= wsAfterProp;
 			this.wsAfterPref= wsAfterPref;
 		}

 	}


 	private RCodeStyleSettings model;

 	private IndentSettingsUI stdIndentSettings;
 	private Text indentBlockDepth;
 	private Text indentGroupDepth;
 	private Text indentWrappedCommandDepth;

 	private ImList<Operator> operators;
 	private Button nlFDefBodyBlockBefore;


 	public RCodeStylePreferenceBlock(final IProject project, final StatusChangeListener statusListener) {
 		super(project, statusListener);
 	}


 	@Override
 	protected void createBlockArea(final Composite pageComposite) {
 		final Map<Preference<?>, String> prefs= new HashMap<>();

 		prefs.put(RCodeStyleSettings.INDENT_DEFAULT_TYPE_PREF, RCodeStyleSettings.INDENT_GROUP_ID);
 		prefs.put(RCodeStyleSettings.TAB_SIZE_PREF, RCodeStyleSettings.INDENT_GROUP_ID);
 		prefs.put(RCodeStyleSettings.INDENT_SPACES_COUNT_PREF, RCodeStyleSettings.INDENT_GROUP_ID);
 		prefs.put(RCodeStyleSettings.REPLACE_TABS_WITH_SPACES_PREF, RCodeStyleSettings.INDENT_GROUP_ID);
 		prefs.put(RCodeStyleSettings.REPLACE_CONVERSATIVE_PREF, RCodeStyleSettings.INDENT_GROUP_ID);

 		prefs.put(RCodeStyleSettings.INDENT_BLOCK_DEPTH_PREF, RCodeStyleSettings.INDENT_GROUP_ID);
 		prefs.put(RCodeStyleSettings.INDENT_GROUP_DEPTH_PREF, RCodeStyleSettings.INDENT_GROUP_ID);
 		prefs.put(RCodeStyleSettings.INDENT_WRAPPED_COMMAND_DEPTH_PREF, RCodeStyleSettings.INDENT_GROUP_ID);

 		this.operators= ImCollections.newList(
 				new Operator(Messages.RCodeStyle_Whitespace_Assign_label,
 						RCodeStyleSettings.WS_ASSIGN_BEFORE_PROP, RCodeStyleSettings.WS_ASSIGN_BEFORE_PREF,
 						RCodeStyleSettings.WS_ASSIGN_AFTER_PROP, RCodeStyleSettings.WS_ASSIGN_AFTER_PREF),
 				new Operator(Messages.RCodeStyle_Whitespace_ArgAssign_label,
 						RCodeStyleSettings.WS_ARGASSIGN_BEFORE_PROP, RCodeStyleSettings.WS_ARGASSIGN_BEFORE_PREF,
 						RCodeStyleSettings.WS_ARGASSIGN_AFTER_PROP, RCodeStyleSettings.WS_ARGASSIGN_AFTER_PREF),
 				new Operator(Messages.RCodeStyle_Whitespace_OtherOp_label,
 						RCodeStyleSettings.WS_OTHEROP_BEFORE_PROP, RCodeStyleSettings.WS_OTHEROP_BEFORE_PREF,
 						RCodeStyleSettings.WS_OTHEROP_AFTER_PROP, RCodeStyleSettings.WS_OTHEROP_AFTER_PREF) );
 		for (final Operator operator : this.operators) {
 			prefs.put(operator.wsBeforePref, RCodeStyleSettings.WS_GROUP_ID);
 			prefs.put(operator.wsAfterPref, RCodeStyleSettings.WS_GROUP_ID);
 		}
 		prefs.put(RCodeStyleSettings.NL_FDEF_BODYBLOCK_BEFORE_PREF, RCodeStyleSettings.WS_GROUP_ID);

 		setupPreferenceManager(prefs);

 		this.model= new RCodeStyleSettings(0);
 		this.stdIndentSettings= new IndentSettingsUI();

 		final Composite mainComposite= new Composite(pageComposite, SWT.NONE);
 		mainComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 		mainComposite.setLayout(LayoutUtils.newCompositeGrid(2));

 		final TabFolder folder= new TabFolder(mainComposite, SWT.NONE);
 		folder.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false, 2, 1));

 		{	final TabItem item= new TabItem(folder, SWT.NONE);
 			item.setText(this.stdIndentSettings.getGroupLabel());
 			item.setControl(createIndentControls(folder));
 		}
 		{	final TabItem item= new TabItem(folder, SWT.NONE);
 			item.setText("&More");
 			item.setControl(createMoreControls(folder));
 		}

 		initBindings();
 		updateControls();
 	}

 	private Control createIndentControls(final Composite parent) {
 		final Composite composite= new Composite(parent, SWT.NONE);
 		composite.setLayout(LayoutUtils.newTabGrid(2));

 		this.stdIndentSettings.createControls(composite);
 		LayoutUtils.addSmallFiller(composite, false);

 		final Composite depthComposite= new Composite(composite, SWT.NONE);
 		depthComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false, 2, 1));
 		depthComposite.setLayout(LayoutUtils.newCompositeGrid(3));
 		this.indentBlockDepth= createIndentDepthLine(depthComposite, Messages.RCodeStyle_Indent_IndentInBlocks_label);
 		this.indentGroupDepth= createIndentDepthLine(depthComposite, Messages.RCodeStyle_Indent_IndentInGroups_label);
 		this.indentWrappedCommandDepth= createIndentDepthLine(depthComposite, Messages.RCodeStyle_Indent_IndentOfWrappedCommands_label);

 		return composite;
 	}

 	private Text createIndentDepthLine(final Composite composite, final String label) {
 		final Label labelControl= new Label(composite, SWT.LEFT);
 		labelControl.setText(label);
 		labelControl.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false));
 		final Text textControl= new Text(composite, SWT.RIGHT | SWT.SINGLE | SWT.BORDER);
 		final GridData gd= new GridData(SWT.LEFT, SWT.CENTER, false, false);
 		gd.widthHint= LayoutUtils.hintWidth(textControl, 2);
 		textControl.setLayoutData(gd);
 		final Label typeControl= new Label(composite, SWT.LEFT);
 		typeControl.setText(this.stdIndentSettings.getLevelUnitLabel());
 		typeControl.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false));
 		return textControl;
 	}

 	private Control createMoreControls(final Composite parent) {
 		final Composite composite= new Composite(parent, SWT.NONE);
 		composite.setLayout(LayoutUtils.newTabGrid(4));

 		{	final Label label= new Label(composite, SWT.LEFT);
 			label.setText(Messages.RCodeStyle_Whitespace_label);
 			label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
 		}
 		{	final Label label= new Label(composite, SWT.NONE);
 			label.setText(Messages.RCodeStyle_Whitespace_Before_label);
 			label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
 		}
 		{	final Label label= new Label(composite, SWT.NONE);
 			label.setText(Messages.RCodeStyle_Whitespace_After_label);
 			label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
 		}
 		{	final Label dummy = new Label(composite, SWT.NONE);
 			dummy.setVisible(false);
 			dummy.setLayoutData(new GridData(SWT.LEFT, SWT.TOP, true, false, 1, 4));
 		}
 		for (final Operator operator : this.operators) {
 			final Label label= new Label(composite, SWT.NONE);
 			label.setText(operator.label + "\u200A:"); //$NON-NLS-1$
 			final GridData gd= new GridData(SWT.FILL, SWT.CENTER, false, false);
 			gd.horizontalIndent= LayoutUtils.defaultIndent();
 			label.setLayoutData(gd);

 			operator.wsBeforeControl= new Button(composite, SWT.CHECK);
 			operator.wsBeforeControl.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false));

 			operator.wsAfterControl= new Button(composite, SWT.CHECK);
 			operator.wsAfterControl.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false));
 		}

 		LayoutUtils.addSmallFiller(composite, false);

 		this.nlFDefBodyBlockBefore= new Button(composite, SWT.CHECK);
 		this.nlFDefBodyBlockBefore.setText(Messages.RCodeStyle_Newline_FDefBodyBlock_Before_label);
 		this.nlFDefBodyBlockBefore.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 4, 1));

 		return composite;
 	}

 	@Override
 	protected void addBindings(final DataBindingSupport db) {
 		this.stdIndentSettings.addBindings(db, this.model);

 		db.getContext().bindValue(
 				WidgetProperties.text(SWT.Modify)
 						.observe(this.indentBlockDepth),
 				BeanProperties.value(RCodeStyleSettings.class, RCodeStyleSettings.INDENT_BLOCK_DEPTH_PROP, Integer.TYPE)
 						.observe(db.getRealm(), this.model),
 				new UpdateValueStrategy<String, Integer>()
 						.setAfterGetValidator(new IntegerValidator(1, 10,
 								Messages.RCodeStyle_Indent_IndentInBlocks_error_message )),
 				null );
 		db.getContext().bindValue(
 				WidgetProperties.text(SWT.Modify)
 						.observe(this.indentGroupDepth),
 				BeanProperties.value(RCodeStyleSettings.class, RCodeStyleSettings.INDENT_GROUP_DEPTH_PROP, Integer.TYPE)
 						.observe(db.getRealm(), this.model),
 				new UpdateValueStrategy<String, Integer>()
 						.setAfterGetValidator(new IntegerValidator(1, 10,
 								Messages.RCodeStyle_Indent_IndentInGroups_error_message )),
 				null );
 		db.getContext().bindValue(
 				WidgetProperties.text(SWT.Modify)
 						.observe(this.indentWrappedCommandDepth),
 				BeanProperties.value(RCodeStyleSettings.class, RCodeStyleSettings.INDENT_WRAPPED_COMMAND_DEPTH_PROP, Integer.TYPE)
 						.observe(db.getRealm(), this.model),
 				new UpdateValueStrategy<String, Integer>()
 						.setAfterGetValidator(new IntegerValidator(1, 10,
 								Messages.RCodeStyle_Indent_IndentOfWrappedCommands_error_message )),
 				null );

 		for (final Operator operator : this.operators) {
 			db.getContext().bindValue(
 					WidgetProperties.buttonSelection()
 							.observe(operator.wsBeforeControl),
 					BeanProperties.value(RCodeStyleSettings.class, operator.wsBeforeProp, Boolean.TYPE)
 							.observe(db.getRealm(), this.model) );
 			db.getContext().bindValue(
 					WidgetProperties.buttonSelection()
 							.observe(operator.wsAfterControl),
 					BeanProperties.value(RCodeStyleSettings.class, operator.wsAfterProp, Boolean.TYPE)
 							.observe(db.getRealm(), this.model) );
 		}
 		db.getContext().bindValue(
 				WidgetProperties.buttonSelection()
 						.observe(this.nlFDefBodyBlockBefore),
 				BeanProperties.value(RCodeStyleSettings.class, RCodeStyleSettings.NL_FDEF_BODYBLOCK_BEFORE_PROP, Boolean.TYPE)
 						.observe(db.getRealm(), this.model) );
 	}

 	@Override
 	protected void updateControls() {
 		this.model.load(this);
 		this.model.resetDirty();
 		getDataBinding().getContext().updateTargets();  // required for invalid target values
 	}

 	@Override
 	protected void updatePreferences() {
 		if (this.model.isDirty()) {
 			this.model.resetDirty();
 			setPrefValues(this.model.toPreferencesMap());
 		}
 	}

 }
	/*=============================================================================#
	# Copyright (c) 2007, 2020 Stephan Wahlbrink and others.
	#
	# This program and the accompanying materials are made available under the
	# terms of the Eclipse Public License 2.0 which is available at
	# https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
	# which is available at https://www.apache.org/licenses/LICENSE-2.0.
	#
	# SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
	#
	# Contributors:
	# Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation
	#=============================================================================*/

	package org.eclipse.statet.internal.r.ui.preferences;

	import java.util.HashMap;
	import java.util.Map;

	import org.eclipse.core.databinding.UpdateValueStrategy;
	import org.eclipse.core.databinding.beans.typed.BeanProperties;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.jface.databinding.swt.typed.WidgetProperties;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.TabFolder;
	import org.eclipse.swt.widgets.TabItem;
	import org.eclipse.swt.widgets.Text;

	import org.eclipse.statet.jcommons.collections.ImCollections;
	import org.eclipse.statet.jcommons.collections.ImList;

	import org.eclipse.statet.ecommons.databinding.core.validation.IntegerValidator;
	import org.eclipse.statet.ecommons.databinding.jface.DataBindingSupport;
	import org.eclipse.statet.ecommons.preferences.core.Preference;
	import org.eclipse.statet.ecommons.preferences.ui.ManagedConfigurationBlock;
	import org.eclipse.statet.ecommons.runtime.core.StatusChangeListener;
	import org.eclipse.statet.ecommons.text.ui.settings.IndentSettingsUI;
	import org.eclipse.statet.ecommons.ui.util.LayoutUtils;

	import org.eclipse.statet.r.core.RCodeStyleSettings;


	/**
	* A PreferenceBlock for RCodeStyleSettings (code formatting preferences).
	*/
	public class RCodeStylePreferenceBlock extends ManagedConfigurationBlock {
	// in future supporting multiple profiles?
	// -> we bind to bean not to preferences


	private static class Operator {


	private final String label;

	private final String wsBeforeProp;
	private final Preference<Boolean> wsBeforePref;
	private final String wsAfterProp;
	private final Preference<Boolean> wsAfterPref;

	private Button wsBeforeControl;
	private Button wsAfterControl;

	public Operator(final String label,
	final String wsBeforeProp, final Preference<Boolean> wsBeforePref,
	final String wsAfterProp, final Preference<Boolean> wsAfterPref) {
	this.label= label;
	this.wsBeforeProp= wsBeforeProp;
	this.wsBeforePref= wsBeforePref;
	this.wsAfterProp= wsAfterProp;
	this.wsAfterPref= wsAfterPref;
	}

	}


	private RCodeStyleSettings model;

	private IndentSettingsUI stdIndentSettings;
	private Text indentBlockDepth;
	private Text indentGroupDepth;
	private Text indentWrappedCommandDepth;

	private ImList<Operator> operators;
	private Button nlFDefBodyBlockBefore;


	public RCodeStylePreferenceBlock(final IProject project, final StatusChangeListener statusListener) {
	super(project, statusListener);
	}


	@Override
	protected void createBlockArea(final Composite pageComposite) {
	final Map<Preference<?>, String> prefs= new HashMap<>();

	prefs.put(RCodeStyleSettings.INDENT_DEFAULT_TYPE_PREF, RCodeStyleSettings.INDENT_GROUP_ID);
	prefs.put(RCodeStyleSettings.TAB_SIZE_PREF, RCodeStyleSettings.INDENT_GROUP_ID);
	prefs.put(RCodeStyleSettings.INDENT_SPACES_COUNT_PREF, RCodeStyleSettings.INDENT_GROUP_ID);
	prefs.put(RCodeStyleSettings.REPLACE_TABS_WITH_SPACES_PREF, RCodeStyleSettings.INDENT_GROUP_ID);
	prefs.put(RCodeStyleSettings.REPLACE_CONVERSATIVE_PREF, RCodeStyleSettings.INDENT_GROUP_ID);

	prefs.put(RCodeStyleSettings.INDENT_BLOCK_DEPTH_PREF, RCodeStyleSettings.INDENT_GROUP_ID);
	prefs.put(RCodeStyleSettings.INDENT_GROUP_DEPTH_PREF, RCodeStyleSettings.INDENT_GROUP_ID);
	prefs.put(RCodeStyleSettings.INDENT_WRAPPED_COMMAND_DEPTH_PREF, RCodeStyleSettings.INDENT_GROUP_ID);

	this.operators= ImCollections.newList(
	new Operator(Messages.RCodeStyle_Whitespace_Assign_label,
	RCodeStyleSettings.WS_ASSIGN_BEFORE_PROP, RCodeStyleSettings.WS_ASSIGN_BEFORE_PREF,
	RCodeStyleSettings.WS_ASSIGN_AFTER_PROP, RCodeStyleSettings.WS_ASSIGN_AFTER_PREF),
	new Operator(Messages.RCodeStyle_Whitespace_ArgAssign_label,
	RCodeStyleSettings.WS_ARGASSIGN_BEFORE_PROP, RCodeStyleSettings.WS_ARGASSIGN_BEFORE_PREF,
	RCodeStyleSettings.WS_ARGASSIGN_AFTER_PROP, RCodeStyleSettings.WS_ARGASSIGN_AFTER_PREF),
	new Operator(Messages.RCodeStyle_Whitespace_OtherOp_label,
	RCodeStyleSettings.WS_OTHEROP_BEFORE_PROP, RCodeStyleSettings.WS_OTHEROP_BEFORE_PREF,
	RCodeStyleSettings.WS_OTHEROP_AFTER_PROP, RCodeStyleSettings.WS_OTHEROP_AFTER_PREF) );
	for (final Operator operator : this.operators) {
	prefs.put(operator.wsBeforePref, RCodeStyleSettings.WS_GROUP_ID);
	prefs.put(operator.wsAfterPref, RCodeStyleSettings.WS_GROUP_ID);
	}
	prefs.put(RCodeStyleSettings.NL_FDEF_BODYBLOCK_BEFORE_PREF, RCodeStyleSettings.WS_GROUP_ID);

	setupPreferenceManager(prefs);

	this.model= new RCodeStyleSettings(0);
	this.stdIndentSettings= new IndentSettingsUI();

	final Composite mainComposite= new Composite(pageComposite, SWT.NONE);
	mainComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
	mainComposite.setLayout(LayoutUtils.newCompositeGrid(2));

	final TabFolder folder= new TabFolder(mainComposite, SWT.NONE);
	folder.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false, 2, 1));

	{ final TabItem item= new TabItem(folder, SWT.NONE);
	item.setText(this.stdIndentSettings.getGroupLabel());
	item.setControl(createIndentControls(folder));
	}
	{ final TabItem item= new TabItem(folder, SWT.NONE);
	item.setText("&More");
	item.setControl(createMoreControls(folder));
	}

	initBindings();
	updateControls();
	}

	private Control createIndentControls(final Composite parent) {
	final Composite composite= new Composite(parent, SWT.NONE);
	composite.setLayout(LayoutUtils.newTabGrid(2));

	this.stdIndentSettings.createControls(composite);
	LayoutUtils.addSmallFiller(composite, false);

	final Composite depthComposite= new Composite(composite, SWT.NONE);
	depthComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false, 2, 1));
	depthComposite.setLayout(LayoutUtils.newCompositeGrid(3));
	this.indentBlockDepth= createIndentDepthLine(depthComposite, Messages.RCodeStyle_Indent_IndentInBlocks_label);
	this.indentGroupDepth= createIndentDepthLine(depthComposite, Messages.RCodeStyle_Indent_IndentInGroups_label);
	this.indentWrappedCommandDepth= createIndentDepthLine(depthComposite, Messages.RCodeStyle_Indent_IndentOfWrappedCommands_label);

	return composite;
	}

	private Text createIndentDepthLine(final Composite composite, final String label) {
	final Label labelControl= new Label(composite, SWT.LEFT);
	labelControl.setText(label);
	labelControl.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false));
	final Text textControl= new Text(composite, SWT.RIGHT \| SWT.SINGLE \| SWT.BORDER);
	final GridData gd= new GridData(SWT.LEFT, SWT.CENTER, false, false);
	gd.widthHint= LayoutUtils.hintWidth(textControl, 2);
	textControl.setLayoutData(gd);
	final Label typeControl= new Label(composite, SWT.LEFT);
	typeControl.setText(this.stdIndentSettings.getLevelUnitLabel());
	typeControl.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false));
	return textControl;
	}

	private Control createMoreControls(final Composite parent) {
	final Composite composite= new Composite(parent, SWT.NONE);
	composite.setLayout(LayoutUtils.newTabGrid(4));

	{ final Label label= new Label(composite, SWT.LEFT);
	label.setText(Messages.RCodeStyle_Whitespace_label);
	label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
	}
	{ final Label label= new Label(composite, SWT.NONE);
	label.setText(Messages.RCodeStyle_Whitespace_Before_label);
	label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
	}
	{ final Label label= new Label(composite, SWT.NONE);
	label.setText(Messages.RCodeStyle_Whitespace_After_label);
	label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
	}
	{ final Label dummy = new Label(composite, SWT.NONE);
	dummy.setVisible(false);
	dummy.setLayoutData(new GridData(SWT.LEFT, SWT.TOP, true, false, 1, 4));
	}
	for (final Operator operator : this.operators) {
	final Label label= new Label(composite, SWT.NONE);
	label.setText(operator.label + "\u200A:"); //$NON-NLS-1$
	final GridData gd= new GridData(SWT.FILL, SWT.CENTER, false, false);
	gd.horizontalIndent= LayoutUtils.defaultIndent();
	label.setLayoutData(gd);

	operator.wsBeforeControl= new Button(composite, SWT.CHECK);
	operator.wsBeforeControl.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false));

	operator.wsAfterControl= new Button(composite, SWT.CHECK);
	operator.wsAfterControl.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false));
	}

	LayoutUtils.addSmallFiller(composite, false);

	this.nlFDefBodyBlockBefore= new Button(composite, SWT.CHECK);
	this.nlFDefBodyBlockBefore.setText(Messages.RCodeStyle_Newline_FDefBodyBlock_Before_label);
	this.nlFDefBodyBlockBefore.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 4, 1));

	return composite;
	}

	@Override
	protected void addBindings(final DataBindingSupport db) {
	this.stdIndentSettings.addBindings(db, this.model);

	db.getContext().bindValue(
	WidgetProperties.text(SWT.Modify)
	.observe(this.indentBlockDepth),
	BeanProperties.value(RCodeStyleSettings.class, RCodeStyleSettings.INDENT_BLOCK_DEPTH_PROP, Integer.TYPE)
	.observe(db.getRealm(), this.model),
	new UpdateValueStrategy<String, Integer>()
	.setAfterGetValidator(new IntegerValidator(1, 10,
	Messages.RCodeStyle_Indent_IndentInBlocks_error_message )),
	null );
	db.getContext().bindValue(
	WidgetProperties.text(SWT.Modify)
	.observe(this.indentGroupDepth),
	BeanProperties.value(RCodeStyleSettings.class, RCodeStyleSettings.INDENT_GROUP_DEPTH_PROP, Integer.TYPE)
	.observe(db.getRealm(), this.model),
	new UpdateValueStrategy<String, Integer>()
	.setAfterGetValidator(new IntegerValidator(1, 10,
	Messages.RCodeStyle_Indent_IndentInGroups_error_message )),
	null );
	db.getContext().bindValue(
	WidgetProperties.text(SWT.Modify)
	.observe(this.indentWrappedCommandDepth),
	BeanProperties.value(RCodeStyleSettings.class, RCodeStyleSettings.INDENT_WRAPPED_COMMAND_DEPTH_PROP, Integer.TYPE)
	.observe(db.getRealm(), this.model),
	new UpdateValueStrategy<String, Integer>()
	.setAfterGetValidator(new IntegerValidator(1, 10,
	Messages.RCodeStyle_Indent_IndentOfWrappedCommands_error_message )),
	null );

	for (final Operator operator : this.operators) {
	db.getContext().bindValue(
	WidgetProperties.buttonSelection()
	.observe(operator.wsBeforeControl),
	BeanProperties.value(RCodeStyleSettings.class, operator.wsBeforeProp, Boolean.TYPE)
	.observe(db.getRealm(), this.model) );
	db.getContext().bindValue(
	WidgetProperties.buttonSelection()
	.observe(operator.wsAfterControl),
	BeanProperties.value(RCodeStyleSettings.class, operator.wsAfterProp, Boolean.TYPE)
	.observe(db.getRealm(), this.model) );
	}
	db.getContext().bindValue(
	WidgetProperties.buttonSelection()
	.observe(this.nlFDefBodyBlockBefore),
	BeanProperties.value(RCodeStyleSettings.class, RCodeStyleSettings.NL_FDEF_BODYBLOCK_BEFORE_PROP, Boolean.TYPE)
	.observe(db.getRealm(), this.model) );
	}

	@Override
	protected void updateControls() {
	this.model.load(this);
	this.model.resetDirty();
	getDataBinding().getContext().updateTargets(); // required for invalid target values
	}

	@Override
	protected void updatePreferences() {
	if (this.model.isDirty()) {
	this.model.resetDirty();
	setPrefValues(this.model.toPreferencesMap());
	}
	}

	}