diff -r 000000000000 -r 1918ee327afb tools/porting/src/logger.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/porting/src/logger.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,148 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the qt3to4 porting application of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "logger.h"
+#include <QFile>
+#include <QDateTime>
+
+QT_BEGIN_NAMESPACE
+
+LogEntry::LogEntry(QString type, QString location)
+:type(type), location(location)
+{}
+
+PlainLogEntry::PlainLogEntry(QString type, QString location, QString text)
+:LogEntry(type, location), text(text)
+{}
+
+SourcePointLogEntry::SourcePointLogEntry(QString type, QString location, QString file, int line, int column, QString text)
+:LogEntry(type, location), file(file), line(line), column(column), text(text)
+{}
+
+QString SourcePointLogEntry::description() const
+{
+    return QLatin1String("In file ")  + file +
+        QLatin1String(" at line ") + QString::number(line + 1) + //line count is zero based, adjust here.
+        QLatin1String(" column ")  + QString::number(column) +
+           QLatin1String(": ") + text ;
+}
+
+void SourcePointLogEntry::updateLinePos(int threshold,  int delta)
+{
+    if (line >= threshold)
+        line += delta;
+}
+
+/////////////////////////////////////////////////////
+
+
+Logger::~Logger()
+{
+   qDeleteAll(logEntries);
+}
+
+Logger *Logger::theInstance  = 0;
+Logger *Logger::instance()
+{
+    if(!theInstance)
+        theInstance = new Logger();
+        return theInstance;
+}
+
+void Logger::deleteInstance()
+{
+    if(theInstance)
+        delete theInstance;
+}
+
+void Logger::addEntry(LogEntry *entry)
+{
+   Q_ASSERT(entry);
+   pendingLogEntries.append(entry);
+}
+
+void Logger::beginSection()
+{
+    commitSection();
+}
+
+void Logger::commitSection()
+{
+    logEntries += pendingLogEntries;
+    pendingLogEntries.clear();
+}
+
+void Logger::revertSection()
+{
+    qDeleteAll(pendingLogEntries);
+    pendingLogEntries.clear();
+}
+
+int Logger::numEntries()
+{
+    commitSection();
+    return logEntries.size();
+}
+
+QStringList Logger::fullReport()
+{
+    commitSection();
+    QStringList report;
+    report << QLatin1String("Log for qt3to4 on ") + QDateTime::currentDateTime().toString() +
+        QLatin1String(". Number of log entries: ") + QString::number(logEntries.size());
+    foreach(LogEntry *logEntry, logEntries) {
+        report << logEntry->description();
+    }
+    return report;
+}
+
+/*
+    Update the line for all SourcePointLogEntrys in the list of pending log
+    entries located on or after insertLine.
+*/
+void Logger::updateLineNumbers(int insertLine, int numLines)
+{
+    foreach(LogEntry *logEntry, pendingLogEntries) {
+        logEntry->updateLinePos(insertLine, numLines);
+    }
+}
+
+QT_END_NAMESPACE