plugins/org.eclipse.sphinx.emf.validation.ui/src/org/eclipse/sphinx/emf/validation/ui/views/TableSortDialog.java - sphinx/org.eclipse.sphinx - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2010 IBM Corporation, See4sys and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *     See4sys - added support for problem markers on model objects (rather than
  *               only on workspace resources). Unfortunately, there was no other
  *               choice than copying the whole code from
  *               org.eclipse.ui.views.markers.internal for that purpose because
  *               many of the relevant classes, methods, and fields are private or
  *               package private.
  *******************************************************************************/
 package org.eclipse.sphinx.emf.validation.ui.views;

 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Comparator;

 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.dialogs.TrayDialog;
 import org.eclipse.jface.window.IShellProvider;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 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.Control;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Shell;

 /**
  * The TableSortDialog is the dialog that allows sort order to be selected.
  */
 public class TableSortDialog extends TrayDialog {

 	private TableComparator sorter;

 	private Combo[] priorityCombos;

 	private String[] propertyText;

 	private IField[] properties;

 	private Button[] ascendingButtons;

 	private Button[] descendingButtons;

 	private boolean dirty;

 	private final Comparator columnComparator = new Comparator() {
 		@Override
 		public int compare(Object arg0, Object arg1) {
 			int index0 = -1;
 			int index1 = -1;
 			for (int i = 0; i < propertyText.length; i++) {
 				if (propertyText[i].equals(arg0)) {
 					index0 = i;
 				}
 				if (propertyText[i].equals(arg1)) {
 					index1 = i;
 				}
 			}
 			return index0 - index1;
 		}
 	};

 	/**
 	 * Create a new instance of the receiver.
 	 *
 	 * @param parentShell
 	 * @param sorter
 	 */
 	public TableSortDialog(IShellProvider parentShell, TableComparator sorter) {
 		super(parentShell);
 		this.sorter = sorter;
 		dirty = false;
 	}

 	/*
 	 * (non-Javadoc) Method declared on Window.
 	 */
 	@Override
 	protected void configureShell(Shell newShell) {
 		super.configureShell(newShell);
 		newShell.setText(MarkerMessages.sortDialog_title);
 	}

 	/*
 	 * (non-Javadoc) Method declared on Dialog.
 	 */
 	@Override
 	protected Control createDialogArea(Composite parent) {
 		Composite composite = (Composite) super.createDialogArea(parent);
 		if (sorter == null) {
 			return composite;
 		}

 		initializeDialogUnits(composite);

 		createPrioritiesArea(composite);
 		createRestoreDefaultsButton(composite);
 		createSeparatorLine(composite);

 		Dialog.applyDialogFont(composite);

 		return composite;
 	}

 	/**
 	 * Create the proirities area.
 	 *
 	 * @param parent
 	 */
 	private void createPrioritiesArea(Composite parent) {
 		Composite prioritiesArea = new Composite(parent, SWT.NULL);
 		prioritiesArea.setLayout(new GridLayout(3, false));

 		int[] priorities = sorter.getPriorities();

 		ascendingButtons = new Button[priorities.length];
 		descendingButtons = new Button[priorities.length];
 		priorityCombos = new Combo[Math.min(priorities.length, TableComparator.MAX_DEPTH)];
 		initPriotityText();

 		Label sortByLabel = new Label(prioritiesArea, SWT.NULL);
 		sortByLabel.setText(MarkerMessages.sortDialog_label);
 		GridData data = new GridData();
 		data.horizontalSpan = 3;
 		sortByLabel.setLayoutData(data);

 		for (int i = 0; i < priorityCombos.length; i++) {
 			final int index = i;
 			Label numberLabel = new Label(prioritiesArea, SWT.NULL);
 			numberLabel.setText(NLS.bind(MarkerMessages.sortDialog_columnLabel, new Integer(i + 1)));

 			priorityCombos[i] = new Combo(prioritiesArea, SWT.READ_ONLY);
 			priorityCombos[i].setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

 			Composite directionGroup = new Composite(prioritiesArea, SWT.NONE);
 			directionGroup.setLayout(new GridLayout(2, false));

 			ascendingButtons[i] = new Button(directionGroup, SWT.RADIO);
 			ascendingButtons[i].setText(getAscendingText(i));
 			ascendingButtons[i].addSelectionListener(new SelectionAdapter() {
 				@Override
 				public void widgetSelected(SelectionEvent e) {
 					markDirty();
 				}
 			});
 			descendingButtons[i] = new Button(directionGroup, SWT.RADIO);
 			descendingButtons[i].setText(getDescendingText(i));
 			descendingButtons[i].addSelectionListener(new SelectionAdapter() {
 				@Override
 				public void widgetSelected(SelectionEvent e) {
 					markDirty();
 				}
 			});

 			if (i < priorityCombos.length - 1) {
 				priorityCombos[i].addSelectionListener(new SelectionAdapter() {
 					@Override
 					public void widgetSelected(SelectionEvent e) {
 						int oldSelectionDirection = TableComparator.ASCENDING;
 						if (descendingButtons[index].getSelection()) {
 							oldSelectionDirection = TableComparator.DESCENDING;
 						}
 						ArrayList oldSelectionList = new ArrayList(Arrays.asList(priorityCombos[index].getItems()));
 						oldSelectionList.removeAll(Arrays.asList(priorityCombos[index + 1].getItems()));
 						if (oldSelectionList.size() != 1) {
 							return;
 						}
 						String oldSelection = (String) oldSelectionList.get(0);
 						String newSelection = priorityCombos[index].getItem(priorityCombos[index].getSelectionIndex());
 						if (oldSelection.equals(newSelection)) {
 							return;
 						}
 						for (int j = index + 1; j < priorityCombos.length; j++) {
 							int newSelectionIndex = priorityCombos[j].indexOf(newSelection);
 							// this combo's current selection is equal to newSelection
 							if (priorityCombos[j].getSelectionIndex() == newSelectionIndex) {
 								priorityCombos[j].remove(newSelection);
 								int insertionPoint = -1 - Arrays.binarySearch(priorityCombos[j].getItems(), oldSelection, columnComparator);
 								if (insertionPoint >= 0 && insertionPoint <= priorityCombos[j].getItemCount()) {
 									priorityCombos[j].add(oldSelection, insertionPoint);
 								} else {
 									priorityCombos[j].add(oldSelection);
 								}
 								priorityCombos[j].select(priorityCombos[j].indexOf(oldSelection));
 								ascendingButtons[index].setSelection(ascendingButtons[j].getSelection());
 								descendingButtons[index].setSelection(descendingButtons[j].getSelection());
 								ascendingButtons[j].setSelection(oldSelectionDirection == TableComparator.ASCENDING);
 								descendingButtons[j].setSelection(oldSelectionDirection == TableComparator.DESCENDING);
 							}
 							// this combo contains newSelection
 							else if (newSelectionIndex >= 0) {
 								priorityCombos[j].remove(newSelection);
 								int insertionPoint = -1 - Arrays.binarySearch(priorityCombos[j].getItems(), oldSelection, columnComparator);
 								if (insertionPoint >= 0 && insertionPoint <= priorityCombos[j].getItemCount()) {
 									priorityCombos[j].add(oldSelection, insertionPoint);
 								} else {
 									priorityCombos[j].add(oldSelection);
 								}
 							}
 						}
 						markDirty();
 					}
 				});
 			} else {
 				priorityCombos[i].addSelectionListener(new SelectionAdapter() {
 					@Override
 					public void widgetSelected(SelectionEvent e) {
 						markDirty();
 					}
 				});
 			}
 		}
 		updateUIFromSorter();
 	}

 	/**
 	 * Get the descending label for the Descending field at i. Use the index to determine the mnemonic.
 	 *
 	 * @param index
 	 * @return String
 	 */
 	private String getDescendingText(int index) {
 		switch (index) {
 		case 1:
 			return MarkerMessages.sortDirectionDescending_text2;
 		case 2:
 			return MarkerMessages.sortDirectionDescending_text3;
 		case 3:
 			return MarkerMessages.sortDirectionDescending_text4;
 		default:
 			return MarkerMessages.sortDirectionDescending_text;
 		}

 	}

 	/**
 	 * Get the ascending label for the Ascending field at i. Use the index to determine the mnemonic.
 	 *
 	 * @param index
 	 * @return String
 	 */
 	private String getAscendingText(int index) {
 		switch (index) {
 		case 1:
 			return MarkerMessages.sortDirectionAscending_text2;
 		case 2:
 			return MarkerMessages.sortDirectionAscending_text3;
 		case 3:
 			return MarkerMessages.sortDirectionAscending_text4;
 		default:
 			return MarkerMessages.sortDirectionAscending_text;
 		}

 	}

 	/**
 	 * Create the restore defaults button.
 	 *
 	 * @param parent
 	 */
 	private void createRestoreDefaultsButton(Composite parent) {
 		Button defaultsButton = new Button(parent, SWT.PUSH);
 		defaultsButton.setText(MarkerMessages.restoreDefaults_text);
 		setButtonSize(defaultsButton, new GridData(GridData.HORIZONTAL_ALIGN_END | GridData.FILL_HORIZONTAL));
 		defaultsButton.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent e) {
 				restoreDefaults();
 				markDirty();
 			}
 		});
 	}

 	private void createSeparatorLine(Composite parent) {
 		Label separator = new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL);
 		separator.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_CENTER));
 		// separator.setForeground(new Color(parent.getDisplay(), 150, 150, 150));
 		// separator.setBackground(new Color(parent.getDisplay(), 150, 150, 150));
 	}

 	private void restoreDefaults() {
 		updateUI(sorter.getDefaultPriorities(), sorter.getDefaultDirections());
 	}

 	private void updateUIFromSorter() {
 		updateUI(sorter.getPriorities(), sorter.getDirections());
 	}

 	private void updateUI(int[] priorities, int[] directions) {
 		ArrayList availablePriorities = new ArrayList(Arrays.asList(propertyText));

 		for (int i = 0; i < priorityCombos.length; i++) {
 			priorityCombos[i].removeAll();
 			for (int j = 0; j < availablePriorities.size(); j++) {
 				priorityCombos[i].add((String) availablePriorities.get(j));
 			}
 			priorityCombos[i].select(priorityCombos[i].indexOf(propertyText[priorities[i]]));
 			availablePriorities.remove(propertyText[priorities[i]]);

 			ascendingButtons[i].setSelection(directions[priorities[i]] == TableComparator.ASCENDING);
 			descendingButtons[i].setSelection(directions[priorities[i]] == TableComparator.DESCENDING);
 		}
 	}

 	@Override
 	protected void okPressed() {
 		if (isDirty()) {
 			for (int i = priorityCombos.length - 1; i >= 0; i--) {
 				String column = priorityCombos[i].getItem(priorityCombos[i].getSelectionIndex());
 				int index = -1;
 				for (int j = 0; j < propertyText.length && index == -1; j++) {
 					if (propertyText[j].equals(column)) {
 						index = j;
 					}
 				}
 				if (index == -1) {
 					sorter.resetState();
 					return;
 				}
 				sorter.setTopPriority(properties[index]);
 				int direction = TableComparator.ASCENDING;
 				if (descendingButtons[i].getSelection()) {
 					direction = TableComparator.DESCENDING;
 				}
 				sorter.setTopPriorityDirection(direction);
 			}
 		}
 		super.okPressed();
 	}

 	/**
 	 * @return boolean
 	 */
 	public boolean isDirty() {
 		return dirty;
 	}

 	/**
 	 * Sets the dirty flag to true.
 	 */
 	public void markDirty() {
 		dirty = true;
 	}

 	/**
 	 * Set the layout data of the button to a GridData with appropriate heights and widths.
 	 *
 	 * @param button
 	 */
 	private void setButtonSize(Button button, GridData buttonData) {
 		button.setFont(button.getParent().getFont());
 		int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
 		buttonData.widthHint = Math.max(widthHint, button.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x);
 		button.setLayoutData(buttonData);
 	}

 	private void initPriotityText() {
 		IField[] unorderedProperties = sorter.getFields();
 		properties = new IField[unorderedProperties.length];
 		System.arraycopy(unorderedProperties, 0, properties, 0, properties.length);
 		propertyText = new String[properties.length];
 		for (int i = 0; i < properties.length; i++) {
 			propertyText[i] = properties[i].getDescription();
 		}
 	}

 	/**
 	 * Return the sorter for the receiver.
 	 *
 	 * @return TableSorter
 	 */
 	public TableComparator getSorter() {
 		return sorter;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2010 IBM Corporation, See4sys and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	* See4sys - added support for problem markers on model objects (rather than
	* only on workspace resources). Unfortunately, there was no other
	* choice than copying the whole code from
	* org.eclipse.ui.views.markers.internal for that purpose because
	* many of the relevant classes, methods, and fields are private or
	* package private.
	*******************************************************************************/
	package org.eclipse.sphinx.emf.validation.ui.views;

	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.Comparator;

	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.dialogs.TrayDialog;
	import org.eclipse.jface.window.IShellProvider;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	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.Control;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Shell;

	/**
	* The TableSortDialog is the dialog that allows sort order to be selected.
	*/
	public class TableSortDialog extends TrayDialog {

	private TableComparator sorter;

	private Combo[] priorityCombos;

	private String[] propertyText;

	private IField[] properties;

	private Button[] ascendingButtons;

	private Button[] descendingButtons;

	private boolean dirty;

	private final Comparator columnComparator = new Comparator() {
	@Override
	public int compare(Object arg0, Object arg1) {
	int index0 = -1;
	int index1 = -1;
	for (int i = 0; i < propertyText.length; i++) {
	if (propertyText[i].equals(arg0)) {
	index0 = i;
	}
	if (propertyText[i].equals(arg1)) {
	index1 = i;
	}
	}
	return index0 - index1;
	}
	};

	/**
	* Create a new instance of the receiver.
	*
	* @param parentShell
	* @param sorter
	*/
	public TableSortDialog(IShellProvider parentShell, TableComparator sorter) {
	super(parentShell);
	this.sorter = sorter;
	dirty = false;
	}

	/*
	* (non-Javadoc) Method declared on Window.
	*/
	@Override
	protected void configureShell(Shell newShell) {
	super.configureShell(newShell);
	newShell.setText(MarkerMessages.sortDialog_title);
	}

	/*
	* (non-Javadoc) Method declared on Dialog.
	*/
	@Override
	protected Control createDialogArea(Composite parent) {
	Composite composite = (Composite) super.createDialogArea(parent);
	if (sorter == null) {
	return composite;
	}

	initializeDialogUnits(composite);

	createPrioritiesArea(composite);
	createRestoreDefaultsButton(composite);
	createSeparatorLine(composite);

	Dialog.applyDialogFont(composite);

	return composite;
	}

	/**
	* Create the proirities area.
	*
	* @param parent
	*/
	private void createPrioritiesArea(Composite parent) {
	Composite prioritiesArea = new Composite(parent, SWT.NULL);
	prioritiesArea.setLayout(new GridLayout(3, false));

	int[] priorities = sorter.getPriorities();

	ascendingButtons = new Button[priorities.length];
	descendingButtons = new Button[priorities.length];
	priorityCombos = new Combo[Math.min(priorities.length, TableComparator.MAX_DEPTH)];
	initPriotityText();

	Label sortByLabel = new Label(prioritiesArea, SWT.NULL);
	sortByLabel.setText(MarkerMessages.sortDialog_label);
	GridData data = new GridData();
	data.horizontalSpan = 3;
	sortByLabel.setLayoutData(data);

	for (int i = 0; i < priorityCombos.length; i++) {
	final int index = i;
	Label numberLabel = new Label(prioritiesArea, SWT.NULL);
	numberLabel.setText(NLS.bind(MarkerMessages.sortDialog_columnLabel, new Integer(i + 1)));

	priorityCombos[i] = new Combo(prioritiesArea, SWT.READ_ONLY);
	priorityCombos[i].setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

	Composite directionGroup = new Composite(prioritiesArea, SWT.NONE);
	directionGroup.setLayout(new GridLayout(2, false));

	ascendingButtons[i] = new Button(directionGroup, SWT.RADIO);
	ascendingButtons[i].setText(getAscendingText(i));
	ascendingButtons[i].addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	markDirty();
	}
	});
	descendingButtons[i] = new Button(directionGroup, SWT.RADIO);
	descendingButtons[i].setText(getDescendingText(i));
	descendingButtons[i].addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	markDirty();
	}
	});

	if (i < priorityCombos.length - 1) {
	priorityCombos[i].addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	int oldSelectionDirection = TableComparator.ASCENDING;
	if (descendingButtons[index].getSelection()) {
	oldSelectionDirection = TableComparator.DESCENDING;
	}
	ArrayList oldSelectionList = new ArrayList(Arrays.asList(priorityCombos[index].getItems()));
	oldSelectionList.removeAll(Arrays.asList(priorityCombos[index + 1].getItems()));
	if (oldSelectionList.size() != 1) {
	return;
	}
	String oldSelection = (String) oldSelectionList.get(0);
	String newSelection = priorityCombos[index].getItem(priorityCombos[index].getSelectionIndex());
	if (oldSelection.equals(newSelection)) {
	return;
	}
	for (int j = index + 1; j < priorityCombos.length; j++) {
	int newSelectionIndex = priorityCombos[j].indexOf(newSelection);
	// this combo's current selection is equal to newSelection
	if (priorityCombos[j].getSelectionIndex() == newSelectionIndex) {
	priorityCombos[j].remove(newSelection);
	int insertionPoint = -1 - Arrays.binarySearch(priorityCombos[j].getItems(), oldSelection, columnComparator);
	if (insertionPoint >= 0 && insertionPoint <= priorityCombos[j].getItemCount()) {
	priorityCombos[j].add(oldSelection, insertionPoint);
	} else {
	priorityCombos[j].add(oldSelection);
	}
	priorityCombos[j].select(priorityCombos[j].indexOf(oldSelection));
	ascendingButtons[index].setSelection(ascendingButtons[j].getSelection());
	descendingButtons[index].setSelection(descendingButtons[j].getSelection());
	ascendingButtons[j].setSelection(oldSelectionDirection == TableComparator.ASCENDING);
	descendingButtons[j].setSelection(oldSelectionDirection == TableComparator.DESCENDING);
	}
	// this combo contains newSelection
	else if (newSelectionIndex >= 0) {
	priorityCombos[j].remove(newSelection);
	int insertionPoint = -1 - Arrays.binarySearch(priorityCombos[j].getItems(), oldSelection, columnComparator);
	if (insertionPoint >= 0 && insertionPoint <= priorityCombos[j].getItemCount()) {
	priorityCombos[j].add(oldSelection, insertionPoint);
	} else {
	priorityCombos[j].add(oldSelection);
	}
	}
	}
	markDirty();
	}
	});
	} else {
	priorityCombos[i].addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	markDirty();
	}
	});
	}
	}
	updateUIFromSorter();
	}

	/**
	* Get the descending label for the Descending field at i. Use the index to determine the mnemonic.
	*
	* @param index
	* @return String
	*/
	private String getDescendingText(int index) {
	switch (index) {
	case 1:
	return MarkerMessages.sortDirectionDescending_text2;
	case 2:
	return MarkerMessages.sortDirectionDescending_text3;
	case 3:
	return MarkerMessages.sortDirectionDescending_text4;
	default:
	return MarkerMessages.sortDirectionDescending_text;
	}

	}

	/**
	* Get the ascending label for the Ascending field at i. Use the index to determine the mnemonic.
	*
	* @param index
	* @return String
	*/
	private String getAscendingText(int index) {
	switch (index) {
	case 1:
	return MarkerMessages.sortDirectionAscending_text2;
	case 2:
	return MarkerMessages.sortDirectionAscending_text3;
	case 3:
	return MarkerMessages.sortDirectionAscending_text4;
	default:
	return MarkerMessages.sortDirectionAscending_text;
	}

	}

	/**
	* Create the restore defaults button.
	*
	* @param parent
	*/
	private void createRestoreDefaultsButton(Composite parent) {
	Button defaultsButton = new Button(parent, SWT.PUSH);
	defaultsButton.setText(MarkerMessages.restoreDefaults_text);
	setButtonSize(defaultsButton, new GridData(GridData.HORIZONTAL_ALIGN_END \| GridData.FILL_HORIZONTAL));
	defaultsButton.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	restoreDefaults();
	markDirty();
	}
	});
	}

	private void createSeparatorLine(Composite parent) {
	Label separator = new Label(parent, SWT.SEPARATOR \| SWT.HORIZONTAL);
	separator.setLayoutData(new GridData(GridData.FILL_HORIZONTAL \| GridData.VERTICAL_ALIGN_CENTER));
	// separator.setForeground(new Color(parent.getDisplay(), 150, 150, 150));
	// separator.setBackground(new Color(parent.getDisplay(), 150, 150, 150));
	}

	private void restoreDefaults() {
	updateUI(sorter.getDefaultPriorities(), sorter.getDefaultDirections());
	}

	private void updateUIFromSorter() {
	updateUI(sorter.getPriorities(), sorter.getDirections());
	}

	private void updateUI(int[] priorities, int[] directions) {
	ArrayList availablePriorities = new ArrayList(Arrays.asList(propertyText));

	for (int i = 0; i < priorityCombos.length; i++) {
	priorityCombos[i].removeAll();
	for (int j = 0; j < availablePriorities.size(); j++) {
	priorityCombos[i].add((String) availablePriorities.get(j));
	}
	priorityCombos[i].select(priorityCombos[i].indexOf(propertyText[priorities[i]]));
	availablePriorities.remove(propertyText[priorities[i]]);

	ascendingButtons[i].setSelection(directions[priorities[i]] == TableComparator.ASCENDING);
	descendingButtons[i].setSelection(directions[priorities[i]] == TableComparator.DESCENDING);
	}
	}

	@Override
	protected void okPressed() {
	if (isDirty()) {
	for (int i = priorityCombos.length - 1; i >= 0; i--) {
	String column = priorityCombos[i].getItem(priorityCombos[i].getSelectionIndex());
	int index = -1;
	for (int j = 0; j < propertyText.length && index == -1; j++) {
	if (propertyText[j].equals(column)) {
	index = j;
	}
	}
	if (index == -1) {
	sorter.resetState();
	return;
	}
	sorter.setTopPriority(properties[index]);
	int direction = TableComparator.ASCENDING;
	if (descendingButtons[i].getSelection()) {
	direction = TableComparator.DESCENDING;
	}
	sorter.setTopPriorityDirection(direction);
	}
	}
	super.okPressed();
	}

	/**
	* @return boolean
	*/
	public boolean isDirty() {
	return dirty;
	}

	/**
	* Sets the dirty flag to true.
	*/
	public void markDirty() {
	dirty = true;
	}

	/**
	* Set the layout data of the button to a GridData with appropriate heights and widths.
	*
	* @param button
	*/
	private void setButtonSize(Button button, GridData buttonData) {
	button.setFont(button.getParent().getFont());
	int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
	buttonData.widthHint = Math.max(widthHint, button.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x);
	button.setLayoutData(buttonData);
	}

	private void initPriotityText() {
	IField[] unorderedProperties = sorter.getFields();
	properties = new IField[unorderedProperties.length];
	System.arraycopy(unorderedProperties, 0, properties, 0, properties.length);
	propertyText = new String[properties.length];
	for (int i = 0; i < properties.length; i++) {
	propertyText[i] = properties[i].getDescription();
	}
	}

	/**
	* Return the sorter for the receiver.
	*
	* @return TableSorter
	*/
	public TableComparator getSorter() {
	return sorter;
	}
	}