Mercurial > hg > forks > UniversalIndentGUI

changeset 754:4ec2ac09969d

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Renamed the logger class and put it into a namespace for later universal tool reuse. git-svn-id: svn://svn.code.sf.net/p/universalindent/code/trunk@1031 59b1889a-e5ac-428c-b0c7-476e01d41282
author thomas_-_s <thomas_-_s@59b1889a-e5ac-428c-b0c7-476e01d41282>
date Tue, 21 Dec 2010 23:07:50 +0000
parents e64c04dc6f61
children 302411a51c00
files UniversalIndentGUI.pro src/MainWindow.cpp src/UiGuiLogger.cpp src/UiGuiLogger.h src/UiGuiLoggerDialog.ui src/debugging/TSLogger.cpp src/debugging/TSLogger.h src/debugging/TSLoggerDialog.ui src/main.cpp
diffstat 9 files changed, 475 insertions(+), 458 deletions(-) [+]
line wrap: on
line diff
--- a/UniversalIndentGUI.pro	Fri Oct 22 16:26:27 2010 +0000
+++ b/UniversalIndentGUI.pro	Tue Dec 21 23:07:50 2010 +0000
@@ -189,20 +189,20 @@
            src/UiGuiHighlighter.h \
            src/UiGuiIndentServer.h \
            src/UiGuiIniFileParser.h \
-           src/UiGuiLogger.h \
            src/UiGuiSettings.h \
            src/UiGuiSettingsDialog.h \
            src/UiGuiSystemInfo.h \
            src/UiGuiVersion.h \
-           src/UpdateCheckDialog.h
+           src/UpdateCheckDialog.h \
+           src/debugging/TSLogger.h
 
 
 FORMS += src/MainWindow.ui \
          src/ToolBarWidget.ui \
-         src/UiGuiLoggerDialog.ui \
          src/UiGuiSettingsDialog.ui \
          src/AboutDialog.ui \
-         src/UpdateCheckDialog.ui
+         src/UpdateCheckDialog.ui \
+         src/debugging/TSLoggerDialog.ui
 
 SOURCES += src/AboutDialog.cpp \
            src/AboutDialogGraphicsView.cpp \
@@ -215,12 +215,12 @@
            src/UiGuiHighlighter.cpp \
            src/UiGuiIndentServer.cpp \
            src/UiGuiIniFileParser.cpp \
-           src/UiGuiLogger.cpp \
            src/UiGuiSettings.cpp \
            src/UiGuiSettingsDialog.cpp \
            src/UiGuiSystemInfo.cpp \
            src/UiGuiVersion.cpp \
-           src/UpdateCheckDialog.cpp
+           src/UpdateCheckDialog.cpp \
+           src/debugging/TSLogger.cpp
 
 RESOURCES += resources/Icons.qrc
 RC_FILE    = resources/programicon.rc
--- a/src/MainWindow.cpp	Fri Oct 22 16:26:27 2010 +0000
+++ b/src/MainWindow.cpp	Tue Dec 21 23:07:50 2010 +0000
@@ -21,7 +21,7 @@
 #include "ui_MainWindow.h"
 
 #include "UiGuiVersion.h"
-#include "UiGuiLogger.h"
+#include "debugging/TSLogger.h"
 #include "SettingsPaths.h"
 
 #include "ui_ToolBarWidget.h"
@@ -57,6 +57,8 @@
 #include <Qsci/qsciscintilla.h>
 #include <Qsci/qsciprinter.h>
 
+using namespace tschweitzer;
+
 //! \defgroup grp_MainWindow All concerning main window functionality.
 
 /*!
@@ -206,7 +208,7 @@
     connect( _mainWindowForm->actionExportPDF, SIGNAL(triggered()), this, SLOT(exportToPDF()) );
     connect( _mainWindowForm->actionExportHTML, SIGNAL(triggered()), this, SLOT(exportToHTML()) );
     connect( _mainWindowForm->actionCheck_for_update, SIGNAL(triggered()), _updateCheckDialog, SLOT(checkForUpdateAndShowDialog()) );
-    connect( _mainWindowForm->actionShowLog, SIGNAL(triggered()), UiGuiLogger::getInstance(), SLOT(show()) );
+    connect( _mainWindowForm->actionShowLog, SIGNAL(triggered()), debugging::TSLogger::getInstance(), SLOT(show()) );
 
     // Init the menu for selecting one of the recently opened files.
     updateRecentlyOpenedList();
--- a/src/UiGuiLogger.cpp	Fri Oct 22 16:26:27 2010 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,239 +0,0 @@
-/***************************************************************************
- *   Copyright (C) 2006-2010 by Thomas Schweitzer                          *
- *   thomas-schweitzer(at)arcor.de                                         *
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License version 2.0 as   *
- *   published by the Free Software Foundation.                            *
- *                                                                         *
- *   This program is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
- *   GNU General Public License for more details.                          *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program in the file LICENSE.GPL; if not, write to the *
- *   Free Software Foundation, Inc.,                                       *
- *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
- ***************************************************************************/
-
-#include "UiGuiLogger.h"
-#include "ui_UiGuiLoggerDialog.h"
-
-#include "SettingsPaths.h"
-
-#include <QDateTime>
-#include <QFile>
-#include <QFileInfo>
-#include <QUrl>
-#include <QTextStream>
-#include <QDesktopServices>
-
-#include <ctime>
-
-UiGuiLogger* UiGuiLogger::_instance = NULL;
-
-/*!
-    \class UiGuiLogger
-    \brief This class handles any kind of data logging, for debugging and whatever purpose.
-
-    Beneath being able of displaying a dialog window containing all log messages of the
-    current session, a log file in the systems temporary directory is used. Its name
-    is "UiGUI_log.html".
-
-    Setting a verbose level allows to only write messages that have the selected minimum
-    priority to the log.
- */
-
-/*!
-    \brief Returns the only existing instance of UiGuiLogger. If the instance doesn't exist, it will be created.
- */
-UiGuiLogger* UiGuiLogger::getInstance(int verboseLevel) {
-    if ( _instance == NULL )
-        _instance = new UiGuiLogger(verboseLevel);
-
-    return _instance;
-}
-
-
-/*!
-    \brief Returns the only existing instance of UiGuiLogger. If the instance doesn't exist, it will be created.
- */
-UiGuiLogger* UiGuiLogger::getInstance() {
-#ifdef _DEBUG
-    return UiGuiLogger::getInstance(QtDebugMsg);
-#else
-    return UiGuiLogger::getInstance(QtWarningMsg);
-#endif
-}
-
-
-/*!
-    \brief Initializes the dialog and sets the path to the log file in the systems temporary directory.
-    Sets the default verbose level to warning level.
- */
-UiGuiLogger::UiGuiLogger(int verboseLevel) : QDialog() {
-	_uiGuiLoggerDialogForm = new Ui::UiGuiLoggerDialog();
-    _uiGuiLoggerDialogForm->setupUi(this);
-#ifdef _DEBUG
-    _verboseLevel = QtDebugMsg;
-#else
-    _verboseLevel = QtMsgType(verboseLevel);
-#endif
-
-    _logFileInitState = NOTINITIALZED;
-
-    connect( _uiGuiLoggerDialogForm->openLogFileFolderToolButton, SIGNAL(clicked()), this, SLOT(openLogFileFolder()) );
-
-    // Make the main application not to wait for the logging window to close.
-    setAttribute(Qt::WA_QuitOnClose, false);
-}
-
-
-/*!
-    \brief Logs all incoming messages \a msg to the dialogs text edit and to the log file.
-
-    Only messages whos \a type have a higher priority than the set verbose level are logged.
- */
-void UiGuiLogger::messageHandler(QtMsgType type, const char *msg) {
-    if ( _instance == NULL )
-        _instance = UiGuiLogger::getInstance();
-
-    // Only log messages that have a higher or equal priority than set with the verbose level.
-    if ( type < _instance->_verboseLevel )
-        return;
-
-    // Init log message with prepended date and time.
-    QString message = QDateTime::currentDateTime().toString();
-
-    // Depending on the QtMsgType prepend a different colored Debug, Warning, Critical or Fatal.
-    switch (type) {
-        case QtDebugMsg :
-            message += " <span style=\"font-weight:bold; color:black;\">Debug:</span> ";
-            break;
-        case QtWarningMsg :
-            message += " <span style=\"font-weight:bold; color:gold;\">Warning:</span> ";
-            break;
-        case QtCriticalMsg :
-            message += "<span style=\"font-weight:bold; color:red;\">Critical:</span> ";
-            break;
-        case QtFatalMsg :
-            message += " <span style=\"font-weight:bold; color:#D60000;\">Fatal:</span> ";
-        // This one is no Qt message type, but can be used to send info messages to the log
-        // by calling UiGuiLogger::messageHandler() directly.
-        case UiGuiInfoMsg :
-            message += " <span style=\"font-weight:bold; color:darkgray;\">Info:</span> ";
-            break;
-    }
-
-    // Append the ti UTF-8 back converted message parameter.
-    message += QString::fromUtf8( msg ) + "<br/>\n";
-
-    // Write the message to the log windows text edit.
-    _instance->_uiGuiLoggerDialogForm->logTextEdit->append( message );
-
-    // Write/append the log message to the log file.
-    _instance->writeToLogFile( message );
-
-    // In case of a fatal error abort the application.
-    if ( type == QtFatalMsg )
-        abort();
-}
-
-
-/*!
-    \brief Calling this the verbose level can be set in a range from 0 to 3
-    which is equal to debug, warning, critical and fatal priority.
- */
-void UiGuiLogger::setVerboseLevel(int level) {
-    if ( level < 0 )
-        _verboseLevel = QtDebugMsg;
-    if ( level > 3 )
-        _verboseLevel = QtFatalMsg;
-    else
-        _verboseLevel = QtMsgType(level);
-}
-
-
-/*!
-    \brief Deletes the existing _instance of UiGuiLogger.
- */
-void UiGuiLogger::deleteInstance() {
-    if ( _instance != NULL ) {
-        delete _instance;
-        _instance = NULL;
-    }
-}
-
-
-/*!
-    \brief Opens the folder that contains the created log file with the name "UiGUI_log.html".
- */
-void UiGuiLogger::openLogFileFolder() {
-    QDesktopServices::openUrl( QFileInfo( _logFile ).absolutePath() );
-}
-
-
-/*!
-    \brief Writes the \a message to the used log file.
- */
-void UiGuiLogger::writeToLogFile(const QString &message) {
-    // If the file where all logging messages should go to isn't initilized yet, do that now.
-    if ( _logFileInitState == NOTINITIALZED ) {
-        _logFileInitState = INITIALIZING;
-
-        // On different systems it may be that "QDir::tempPath()" ends with a "/" or not. So check this.
-        // Remove any trailing slashes.
-        QString tempPath = QFileInfo( SettingsPaths::getTempPath() ).absolutePath();
-        while ( tempPath.right(1) == "/" ) {
-            tempPath.chop(1);
-        }
-
-        // To make the temporary log file invulnerable against file symbolic link hacks
-        // append the current date and time up to milliseconds to its name and a random character.
-        QString logFileName = "UiGUI_log_" + QDateTime::currentDateTime().toString("yyyyMMdd");
-        logFileName += "-" + QDateTime::currentDateTime().toString("hhmmsszzz");
-        // By random decide whether to append a number or an upper or lower case character.
-        qsrand( time(NULL) );
-        unsigned char randomChar;
-        switch ( qrand() % 3 ) {
-            // Append a number from 0 to 9.
-            case 0 :
-                randomChar = qrand() % 10 + '0';
-                break;
-            // Append a upper case characer between A and Z.
-            case 1 :
-                randomChar = qrand() % 26 + 'A';
-                break;
-            // Append a lower case characer between a and z.
-            default :
-                randomChar = qrand() % 26 + 'a';
-                break;
-        }
-        logFileName += "_" + QString(randomChar) + ".html";
-
-        _logFile.setFileName( tempPath + "/" + logFileName );
-
-        // Set the tooltip of the open log file folder button to show the unique name of the log file.
-        _uiGuiLoggerDialogForm->openLogFileFolderToolButton->setToolTip( _uiGuiLoggerDialogForm->openLogFileFolderToolButton->toolTip() + " (" + logFileName + ")" );
-
-        _logFileInitState = INITIALZED;
-    }
-
-    // Add the message to the message queue.
-    _messageQueue << message;
-
-    // If the logging file is initialzed, write all messages contained in the message queue into the file.
-    if ( _logFileInitState == INITIALZED ) {
-        // Write/append the log message to the log file.
-        if ( _logFile.open(QIODevice::WriteOnly | QIODevice::Text | QIODevice::Append) ) {
-            QTextStream out(&_logFile);
-
-            while ( !_messageQueue.isEmpty() ) {
-                out << _messageQueue.takeFirst() << "\n";
-            }
-
-            _logFile.close();
-        }
-    }
-}
--- a/src/UiGuiLogger.h	Fri Oct 22 16:26:27 2010 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,60 +0,0 @@
-/***************************************************************************
- *   Copyright (C) 2006-2010 by Thomas Schweitzer                          *
- *   thomas-schweitzer(at)arcor.de                                         *
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License version 2.0 as   *
- *   published by the Free Software Foundation.                            *
- *                                                                         *
- *   This program is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
- *   GNU General Public License for more details.                          *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program in the file LICENSE.GPL; if not, write to the *
- *   Free Software Foundation, Inc.,                                       *
- *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
- ***************************************************************************/
-
-#ifndef UIGUILOGGER_H
-#define UIGUILOGGER_H
-
-#define UiGuiInfoMsg QtMsgType(4)
-
-#include <QDialog>
-#include <QFile>
-
-namespace Ui {
-	class UiGuiLoggerDialog;
-}
-
-
-class UiGuiLogger : public QDialog
-{
-    Q_OBJECT
-
-public:
-    static UiGuiLogger* getInstance(int verboseLevel);
-    static UiGuiLogger* getInstance();
-    static void messageHandler(QtMsgType type, const char *msg);
-    static void deleteInstance();
-    void setVerboseLevel(int level);
-
-private slots:
-    void openLogFileFolder();
-
-private:
-	Ui::UiGuiLoggerDialog *_uiGuiLoggerDialogForm;
-
-    enum LogFileInitState { NOTINITIALZED, INITIALIZING, INITIALZED } _logFileInitState;
-    UiGuiLogger(int verboseLevel);
-    void writeToLogFile(const QString &message);
-
-    static UiGuiLogger* _instance;
-    QtMsgType _verboseLevel;
-    QFile _logFile;
-    QStringList _messageQueue;
-};
-
-#endif // UIGUILOGGER_H
--- a/src/UiGuiLoggerDialog.ui	Fri Oct 22 16:26:27 2010 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,142 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>UiGuiLoggerDialog</class>
- <widget class="QDialog" name="UiGuiLoggerDialog">
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>1030</width>
-    <height>263</height>
-   </rect>
-  </property>
-  <property name="windowTitle">
-   <string>Log</string>
-  </property>
-  <property name="windowIcon">
-   <iconset resource="../resources/Icons.qrc">
-    <normaloff>:/mainWindow/document-properties.png</normaloff>:/mainWindow/document-properties.png</iconset>
-  </property>
-  <layout class="QVBoxLayout">
-   <item>
-    <widget class="QLabel" name="label">
-     <property name="text">
-      <string>Logged messages</string>
-     </property>
-    </widget>
-   </item>
-   <item>
-    <widget class="QTextEdit" name="logTextEdit">
-     <property name="readOnly">
-      <bool>true</bool>
-     </property>
-    </widget>
-   </item>
-   <item>
-    <layout class="QHBoxLayout" name="horizontalLayout">
-     <item>
-      <widget class="QToolButton" name="cleanUpToolButton">
-       <property name="toolTip">
-        <string>Clear log</string>
-       </property>
-       <property name="text">
-        <string>...</string>
-       </property>
-       <property name="icon">
-        <iconset resource="../resources/Icons.qrc">
-         <normaloff>:/mainWindow/edit-clear.png</normaloff>:/mainWindow/edit-clear.png</iconset>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QToolButton" name="openLogFileFolderToolButton">
-       <property name="toolTip">
-        <string>Open folder containing log file.</string>
-       </property>
-       <property name="statusTip">
-        <string>Open folder containing log file.</string>
-       </property>
-       <property name="icon">
-        <iconset resource="../resources/Icons.qrc">
-         <normaloff>:/mainWindow/document-open.png</normaloff>:/mainWindow/document-open.png</iconset>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <spacer name="horizontalSpacer">
-       <property name="orientation">
-        <enum>Qt::Horizontal</enum>
-       </property>
-       <property name="sizeHint" stdset="0">
-        <size>
-         <width>40</width>
-         <height>20</height>
-        </size>
-       </property>
-      </spacer>
-     </item>
-     <item>
-      <widget class="QDialogButtonBox" name="buttonBox">
-       <property name="standardButtons">
-        <set>QDialogButtonBox::Close</set>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-  </layout>
- </widget>
- <resources>
-  <include location="../resources/Icons.qrc"/>
- </resources>
- <connections>
-  <connection>
-   <sender>UiGuiLoggerDialog</sender>
-   <signal>finished(int)</signal>
-   <receiver>UiGuiLoggerDialog</receiver>
-   <slot>close()</slot>
-   <hints>
-    <hint type="sourcelabel">
-     <x>2</x>
-     <y>45</y>
-    </hint>
-    <hint type="destinationlabel">
-     <x>5</x>
-     <y>59</y>
-    </hint>
-   </hints>
-  </connection>
-  <connection>
-   <sender>buttonBox</sender>
-   <signal>clicked(QAbstractButton*)</signal>
-   <receiver>UiGuiLoggerDialog</receiver>
-   <slot>close()</slot>
-   <hints>
-    <hint type="sourcelabel">
-     <x>419</x>
-     <y>280</y>
-    </hint>
-    <hint type="destinationlabel">
-     <x>477</x>
-     <y>263</y>
-    </hint>
-   </hints>
-  </connection>
-  <connection>
-   <sender>cleanUpToolButton</sender>
-   <signal>clicked()</signal>
-   <receiver>logTextEdit</receiver>
-   <slot>clear()</slot>
-   <hints>
-    <hint type="sourcelabel">
-     <x>27</x>
-     <y>282</y>
-    </hint>
-    <hint type="destinationlabel">
-     <x>22</x>
-     <y>231</y>
-    </hint>
-   </hints>
-  </connection>
- </connections>
-</ui>
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/debugging/TSLogger.cpp	Tue Dec 21 23:07:50 2010 +0000
@@ -0,0 +1,251 @@
+/***************************************************************************
+ *   Copyright (C) 2006-2010 by Thomas Schweitzer                          *
+ *   thomas-schweitzer(at)arcor.de                                         *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License version 2.0 as   *
+ *   published by the Free Software Foundation.                            *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program in the file LICENSE.GPL; if not, write to the *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include "TSLogger.h"
+#include "ui_TSLoggerDialog.h"
+
+#include "SettingsPaths.h"
+
+#include <QDateTime>
+#include <QFile>
+#include <QFileInfo>
+#include <QUrl>
+#include <QTextStream>
+#include <QDesktopServices>
+#include <QMessageBox>
+
+#include <ctime>
+
+using namespace tschweitzer;
+using namespace tschweitzer::debugging;
+
+TSLogger* TSLogger::_instance = NULL;
+
+/*!
+    \class TSLogger
+    \brief This class handles any kind of data logging, for debugging and whatever purpose.
+
+    Beneath being able of displaying a dialog window containing all log messages of the
+    current session, a log file in the systems temporary directory is used. Its name
+    is "UiGUI_log.html".
+
+    Setting a verbose level allows to only write messages that have the selected minimum
+    priority to the log.
+ */
+
+/*!
+    \brief Returns the only existing instance of TSLogger. If the instance doesn't exist, it will be created.
+ */
+TSLogger* TSLogger::getInstance(int verboseLevel) {
+    if ( _instance == NULL )
+        _instance = new TSLogger(verboseLevel);
+
+    return _instance;
+}
+
+
+/*!
+    \brief Returns the only existing instance of TSLogger. If the instance doesn't exist, it will be created.
+ */
+TSLogger* TSLogger::getInstance() {
+#ifdef _DEBUG
+    return TSLogger::getInstance(QtDebugMsg);
+#else
+    return TSLogger::getInstance(QtWarningMsg);
+#endif
+}
+
+
+/*!
+    \brief Initializes the dialog and sets the path to the log file in the systems temporary directory.
+    Sets the default verbose level to warning level.
+ */
+TSLogger::TSLogger(int verboseLevel) : QDialog() {
+	_TSLoggerDialogForm = new Ui::TSLoggerDialog();
+    _TSLoggerDialogForm->setupUi(this);
+#ifdef _DEBUG
+    _verboseLevel = QtDebugMsg;
+#else
+    _verboseLevel = QtMsgType(verboseLevel);
+#endif
+
+    _logFileInitState = NOTINITIALZED;
+
+    connect( _TSLoggerDialogForm->openLogFileFolderToolButton, SIGNAL(clicked()), this, SLOT(openLogFileFolder()) );
+
+    // Make the main application not to wait for the logging window to close.
+    setAttribute(Qt::WA_QuitOnClose, false);
+}
+
+
+/*!
+    \brief Logs all incoming messages \a msg to the dialogs text edit and to the log file.
+
+    Only messages whos \a type have a higher priority than the set verbose level are logged.
+ */
+void TSLogger::messageHandler(QtMsgType type, const char *msg) {
+    if ( _instance == NULL )
+        _instance = TSLogger::getInstance();
+
+//*
+    QMessageBox messageBox;
+    QString messageBoxText = QString::fromUtf8( msg );
+    messageBox.setText( messageBoxText );
+    messageBox.setWindowModality( Qt::ApplicationModal );
+    messageBox.exec();
+//*/
+
+    // Only log messages that have a higher or equal priority than set with the verbose level.
+    if ( type < _instance->_verboseLevel )
+        return;
+
+    // Init log message with prepended date and time.
+    QString message = QDateTime::currentDateTime().toString();
+
+    // Depending on the QtMsgType prepend a different colored Debug, Warning, Critical or Fatal.
+    switch (type) {
+        case QtDebugMsg :
+            message += " <span style=\"font-weight:bold; color:black;\">Debug:</span> ";
+            break;
+        case QtWarningMsg :
+            message += " <span style=\"font-weight:bold; color:gold;\">Warning:</span> ";
+            break;
+        case QtCriticalMsg :
+            message += "<span style=\"font-weight:bold; color:red;\">Critical:</span> ";
+            break;
+        case QtFatalMsg :
+            message += " <span style=\"font-weight:bold; color:#D60000;\">Fatal:</span> ";
+        // This one is no Qt message type, but can be used to send info messages to the log
+        // by calling TSLogger::messageHandler() directly.
+        case TSLoggerInfoMsg :
+            message += " <span style=\"font-weight:bold; color:darkgray;\">Info:</span> ";
+            break;
+    }
+
+    // Append the to UTF-8 back converted message parameter.
+    message += QString::fromUtf8( msg ) + "<br/>\n";
+
+    // Write the message to the log windows text edit.
+    _instance->_TSLoggerDialogForm->logTextEdit->append( message );
+
+    // Write/append the log message to the log file.
+    _instance->writeToLogFile( message );
+
+    // In case of a fatal error abort the application.
+    if ( type == QtFatalMsg )
+        abort();
+}
+
+
+/*!
+    \brief Calling this the verbose level can be set in a range from 0 to 3
+    which is equal to debug, warning, critical and fatal priority.
+ */
+void TSLogger::setVerboseLevel(int level) {
+    if ( level < 0 )
+        _verboseLevel = QtDebugMsg;
+    if ( level > 3 )
+        _verboseLevel = QtFatalMsg;
+    else
+        _verboseLevel = QtMsgType(level);
+}
+
+
+/*!
+    \brief Deletes the existing _instance of TSLogger.
+ */
+void TSLogger::deleteInstance() {
+    if ( _instance != NULL ) {
+        delete _instance;
+        _instance = NULL;
+    }
+}
+
+
+/*!
+    \brief Opens the folder that contains the created log file with the name "UiGUI_log.html".
+ */
+void TSLogger::openLogFileFolder() {
+    QDesktopServices::openUrl( QFileInfo( _logFile ).absolutePath() );
+}
+
+
+/*!
+    \brief Writes the \a message to the used log file.
+ */
+void TSLogger::writeToLogFile(const QString &message) {
+    // If the file where all logging messages should go to isn't initilized yet, do that now.
+    if ( _logFileInitState == NOTINITIALZED ) {
+        _logFileInitState = INITIALIZING;
+
+        // On different systems it may be that "QDir::tempPath()" ends with a "/" or not. So check this.
+        // Remove any trailing slashes.
+        QString tempPath = QFileInfo( SettingsPaths::getTempPath() ).absolutePath();
+        while ( tempPath.right(1) == "/" ) {
+            tempPath.chop(1);
+        }
+
+        // To make the temporary log file invulnerable against file symbolic link hacks
+        // append the current date and time up to milliseconds to its name and a random character.
+        QString logFileName = "UiGUI_log_" + QDateTime::currentDateTime().toString("yyyyMMdd");
+        logFileName += "-" + QDateTime::currentDateTime().toString("hhmmsszzz");
+        // By random decide whether to append a number or an upper or lower case character.
+        qsrand( time(NULL) );
+        unsigned char randomChar;
+        switch ( qrand() % 3 ) {
+            // Append a number from 0 to 9.
+            case 0 :
+                randomChar = qrand() % 10 + '0';
+                break;
+            // Append a upper case characer between A and Z.
+            case 1 :
+                randomChar = qrand() % 26 + 'A';
+                break;
+            // Append a lower case characer between a and z.
+            default :
+                randomChar = qrand() % 26 + 'a';
+                break;
+        }
+        logFileName += "_" + QString(randomChar) + ".html";
+
+        _logFile.setFileName( tempPath + "/" + logFileName );
+
+        // Set the tooltip of the open log file folder button to show the unique name of the log file.
+        _TSLoggerDialogForm->openLogFileFolderToolButton->setToolTip( _TSLoggerDialogForm->openLogFileFolderToolButton->toolTip() + " (" + logFileName + ")" );
+
+        _logFileInitState = INITIALZED;
+    }
+
+    // Add the message to the message queue.
+    _messageQueue << message;
+
+    // If the logging file is initialzed, write all messages contained in the message queue into the file.
+    if ( _logFileInitState == INITIALZED ) {
+        // Write/append the log message to the log file.
+        if ( _logFile.open(QIODevice::WriteOnly | QIODevice::Text | QIODevice::Append) ) {
+            QTextStream out(&_logFile);
+
+            while ( !_messageQueue.isEmpty() ) {
+                out << _messageQueue.takeFirst() << "\n";
+            }
+
+            _logFile.close();
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/debugging/TSLogger.h	Tue Dec 21 23:07:50 2010 +0000
@@ -0,0 +1,63 @@
+/***************************************************************************
+ *   Copyright (C) 2006-2010 by Thomas Schweitzer                          *
+ *   thomas-schweitzer(at)arcor.de                                         *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License version 2.0 as   *
+ *   published by the Free Software Foundation.                            *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program in the file LICENSE.GPL; if not, write to the *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#ifndef TSLogger_H
+#define TSLogger_H
+
+#include <QDialog>
+#include <QFile>
+
+namespace Ui {
+	class TSLoggerDialog;
+}
+
+namespace tschweitzer { namespace debugging {
+
+#define TSLoggerInfoMsg QtMsgType(4)
+
+class TSLogger : public QDialog
+{
+    Q_OBJECT
+
+public:
+    static TSLogger* getInstance(int verboseLevel);
+    static TSLogger* getInstance();
+    static void messageHandler(QtMsgType type, const char *msg);
+    static void deleteInstance();
+    void setVerboseLevel(int level);
+
+private slots:
+    void openLogFileFolder();
+
+private:
+	Ui::TSLoggerDialog *_TSLoggerDialogForm;
+
+    enum LogFileInitState { NOTINITIALZED, INITIALIZING, INITIALZED } _logFileInitState;
+    TSLogger(int verboseLevel);
+    void writeToLogFile(const QString &message);
+
+    static TSLogger* _instance;
+    QtMsgType _verboseLevel;
+    QFile _logFile;
+    QStringList _messageQueue;
+};
+
+}} // namespace tschweitzer::debugging
+
+#endif // TSLogger_H
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/debugging/TSLoggerDialog.ui	Tue Dec 21 23:07:50 2010 +0000
@@ -0,0 +1,142 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>TSLoggerDialog</class>
+ <widget class="QDialog" name="TSLoggerDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>1030</width>
+    <height>263</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Log</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../resources/Icons.qrc">
+    <normaloff>:/mainWindow/document-properties.png</normaloff>:/mainWindow/document-properties.png</iconset>
+  </property>
+  <layout class="QVBoxLayout">
+   <item>
+    <widget class="QLabel" name="label">
+     <property name="text">
+      <string>Logged messages</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QTextEdit" name="logTextEdit">
+     <property name="readOnly">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QToolButton" name="cleanUpToolButton">
+       <property name="toolTip">
+        <string>Clear log</string>
+       </property>
+       <property name="text">
+        <string>...</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources/Icons.qrc">
+         <normaloff>:/mainWindow/edit-clear.png</normaloff>:/mainWindow/edit-clear.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QToolButton" name="openLogFileFolderToolButton">
+       <property name="toolTip">
+        <string>Open folder containing log file.</string>
+       </property>
+       <property name="statusTip">
+        <string>Open folder containing log file.</string>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources/Icons.qrc">
+         <normaloff>:/mainWindow/document-open.png</normaloff>:/mainWindow/document-open.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QDialogButtonBox" name="buttonBox">
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Close</set>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../resources/Icons.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>TSLoggerDialog</sender>
+   <signal>finished(int)</signal>
+   <receiver>TSLoggerDialog</receiver>
+   <slot>close()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>2</x>
+     <y>45</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>5</x>
+     <y>59</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>clicked(QAbstractButton*)</signal>
+   <receiver>TSLoggerDialog</receiver>
+   <slot>close()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>419</x>
+     <y>280</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>477</x>
+     <y>263</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>cleanUpToolButton</sender>
+   <signal>clicked()</signal>
+   <receiver>logTextEdit</receiver>
+   <slot>clear()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>27</x>
+     <y>282</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>22</x>
+     <y>231</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
--- a/src/main.cpp	Fri Oct 22 16:26:27 2010 +0000
+++ b/src/main.cpp	Tue Dec 21 23:07:50 2010 +0000
@@ -20,7 +20,7 @@
 #include "MainWindow.h"
 
 #include "UiGuiIndentServer.h"
-#include "UiGuiLogger.h"
+#include "debugging/TSLogger.h"
 #include "UiGuiIniFileParser.h"
 #include "UiGuiSettings.h"
 #include "UiGuiVersion.h"
@@ -102,7 +102,7 @@
 }
 #endif
 
-
+using namespace tschweitzer::debugging;
 
 /*!
     /brief Entry point to UniversalIndentGUI application.
@@ -217,15 +217,15 @@
     // Setting UTF-8 as default 8-Bit encoding to ensure that qDebug does no false string conversion.
     QTextCodec::setCodecForCStrings( QTextCodec::codecForName("UTF-8") );
     QTextCodec::setCodecForLocale( QTextCodec::codecForName("UTF-8") );
-    // Force creation of an UiGuiLogger instance here, to avoid recursion with SettingsPaths init function.
+    // Force creation of an TSLogger instance here, to avoid recursion with SettingsPaths init function.
 #ifdef _DEBUG
-    UiGuiLogger::getInstance(0);
+    TSLogger::getInstance(0);
 #else
-    UiGuiLogger::getInstance(verboseLevel);
+    TSLogger::getInstance(verboseLevel);
 #endif
-    qInstallMsgHandler( UiGuiLogger::messageHandler );
-    UiGuiLogger::messageHandler( UiGuiInfoMsg, QString("Starting UiGUI Version %1 %2").arg(PROGRAM_VERSION_STRING).arg(PROGRAM_REVISION).toAscii() );
-    UiGuiLogger::messageHandler( UiGuiInfoMsg, QString("Running on %1").arg(UiGuiSystemInfo::getOperatingSystem()).toAscii() );
+    qInstallMsgHandler( TSLogger::messageHandler );
+    TSLogger::messageHandler( TSLoggerInfoMsg, QString("Starting UiGUI Version %1 %2").arg(PROGRAM_VERSION_STRING).arg(PROGRAM_REVISION).toAscii() );
+    TSLogger::messageHandler( TSLoggerInfoMsg, QString("Running on %1").arg(UiGuiSystemInfo::getOperatingSystem()).toAscii() );
 
     // Set default values for all by UniversalIndentGUI used settings objects.
     QCoreApplication::setOrganizationName("UniversalIndentGUI");
@@ -257,7 +257,7 @@
 	delete mainWindow;
 
     SettingsPaths::cleanAndRemoveTempDir();
-    UiGuiLogger::deleteInstance();
+    TSLogger::deleteInstance();
 
     return returnValue;
 }