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diff --git a/Tests/QtAutomoc/codeeditor.cpp b/Tests/QtAutomoc/codeeditor.cpp
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+/****************************************************************************
+ **
+ ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+ ** All rights reserved.
+ ** Contact: Nokia Corporation (qt-info@nokia.com)
+ **
+ ** This file is part of the examples of the Qt Toolkit.
+ **
+ ** $QT_BEGIN_LICENSE:BSD$
+ ** You may use this file under the terms of the BSD license as follows:
+ **
+ ** "Redistribution and use in source and binary forms, with or without
+ ** modification, are permitted provided that the following conditions are
+ ** met:
+ **   * Redistributions of source code must retain the above copyright
+ **     notice, this list of conditions and the following disclaimer.
+ **   * Redistributions in binary form must reproduce the above copyright
+ **     notice, this list of conditions and the following disclaimer in
+ **     the documentation and/or other materials provided with the
+ **     distribution.
+ **   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+ **     the names of its contributors may be used to endorse or promote
+ **     products derived from this software without specific prior written
+ **     permission.
+ **
+ ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+ ** $QT_END_LICENSE$
+ **
+ ****************************************************************************/
+
+ #include <QtGui>
+
+ #include "codeeditor.h"
+
+
+ CodeEditor::CodeEditor(QWidget *parent) : QPlainTextEdit(parent)
+ {
+     lineNumberArea = new LineNumberArea(this);
+
+     connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int)));
+     connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateLineNumberArea(QRect,int)));
+     connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(highlightCurrentLine()));
+
+     updateLineNumberAreaWidth(0);
+     highlightCurrentLine();
+ }
+
+
+
+ int CodeEditor::lineNumberAreaWidth()
+ {
+     int digits = 1;
+     int max = qMax(1, blockCount());
+     while (max >= 10) {
+         max /= 10;
+         ++digits;
+     }
+
+     int space = 3 + fontMetrics().width(QLatin1Char('9')) * digits;
+
+     return space;
+ }
+
+
+
+ void CodeEditor::updateLineNumberAreaWidth(int /* newBlockCount */)
+ {
+     setViewportMargins(lineNumberAreaWidth(), 0, 0, 0);
+ }
+
+
+
+ void CodeEditor::updateLineNumberArea(const QRect &rect, int dy)
+ {
+     if (dy)
+         lineNumberArea->scroll(0, dy);
+     else
+         lineNumberArea->update(0, rect.y(), lineNumberArea->width(), rect.height());
+
+     if (rect.contains(viewport()->rect()))
+         updateLineNumberAreaWidth(0);
+ }
+
+
+
+ void CodeEditor::resizeEvent(QResizeEvent *e)
+ {
+     QPlainTextEdit::resizeEvent(e);
+
+     QRect cr = contentsRect();
+     lineNumberArea->setGeometry(QRect(cr.left(), cr.top(), lineNumberAreaWidth(), cr.height()));
+ }
+
+
+
+ void CodeEditor::highlightCurrentLine()
+ {
+     QList<QTextEdit::ExtraSelection> extraSelections;
+
+     if (!isReadOnly()) {
+         QTextEdit::ExtraSelection selection;
+
+         QColor lineColor = QColor(Qt::yellow).lighter(160);
+
+         selection.format.setBackground(lineColor);
+         selection.format.setProperty(QTextFormat::FullWidthSelection, true);
+         selection.cursor = textCursor();
+         selection.cursor.clearSelection();
+         extraSelections.append(selection);
+     }
+
+     setExtraSelections(extraSelections);
+ }
+
+
+
+ void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
+ {
+     QPainter painter(lineNumberArea);
+     painter.fillRect(event->rect(), Qt::lightGray);
+
+
+     QTextBlock block = firstVisibleBlock();
+     int blockNumber = block.blockNumber();
+     int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
+     int bottom = top + (int) blockBoundingRect(block).height();
+
+     while (block.isValid() && top <= event->rect().bottom()) {
+         if (block.isVisible() && bottom >= event->rect().top()) {
+             QString number = QString::number(blockNumber + 1);
+             painter.setPen(Qt::black);
+             painter.drawText(0, top, lineNumberArea->width(), fontMetrics().height(),
+                              Qt::AlignRight, number);
+         }
+
+         block = block.next();
+         top = bottom;
+         bottom = top + (int) blockBoundingRect(block).height();
+         ++blockNumber;
+     }
+ }
+
+#include "codeeditor.moc"