Convert files to unix format. Convert C++ header names to C header names.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

1 files changed, 688 insertions, 688 deletions

diff --git a/src/UiGuiSettings.cpp b/src/UiGuiSettings.cpp
index f997ec3..5d8349b 100755
--- a/src/UiGuiSettings.cpp
+++ b/src/UiGuiSettings.cpp
@@ -1,688 +1,688 @@
-/***************************************************************************

-*   Copyright (C) 2006-2012 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 "UiGuiSettings.h"

-

-#include "SettingsPaths.h"

-

-#include <QSettings>

-#include <QPoint>

-#include <QSize>

-#include <QDir>

-#include <QDate>

-#include <QStringList>

-#include <QCoreApplication>

-#include <QMetaMethod>

-#include <QMetaProperty>

-#include <QWidget>

-

-//! \defgroup grp_Settings All concerning the settings.

-

-/*!

-    \class UiGuiSettings

-    \ingroup grp_Settings

-    \brief Handles the settings of the program. Reads them on startup and saves them on exit.

-    Is a singleton class and can only be accessed via getInstance().

-*/

-

-// Inits the single class instance pointer.

-QWeakPointer<UiGuiSettings> UiGuiSettings::_instance;

-

-

-/*!

-    \brief The constructor for the settings.

-*/

-UiGuiSettings::UiGuiSettings() : QObject() {

-    // Create the main application settings object from the UniversalIndentGUI.ini file.

-    _qsettings = new QSettings(SettingsPaths::getSettingsPath() + "/UniversalIndentGUI.ini", QSettings::IniFormat, this);

-

-    _indenterDirctoryStr = SettingsPaths::getGlobalFilesPath() + "/indenters";

-    readAvailableTranslations();

-    initSettings();

-}

-

-

-/*!

-    \brief Returns the instance of the settings class. If no instance exists, ONE will be created.

- */

-QSharedPointer<UiGuiSettings> UiGuiSettings::getInstance() {

-	QSharedPointer<UiGuiSettings> sharedInstance = _instance.toStrongRef();

-    if ( sharedInstance.isNull() ) {

-        // Create the settings object, which loads all UiGui settings from a file.

-        sharedInstance = QSharedPointer<UiGuiSettings>(new UiGuiSettings());

-        _instance = sharedInstance.toWeakRef();

-    }

-

-    return sharedInstance;

-}

-

-

-/*!

-    \brief The destructor saves the settings to a file.

- */

-UiGuiSettings::~UiGuiSettings() {

-    // Convert the language setting from an integer index to a string.

-    int index = _qsettings->value("UniversalIndentGUI/language", 0).toInt();

-    if ( index < 0 || index >= _availableTranslations.size() )

-        index = 0;

-

-    _qsettings->setValue( "UniversalIndentGUI/language", _availableTranslations.at(index) );

-}

-

-

-/*!

-    \brief Scans the translations directory for available translation files and

-    stores them in the QList \a _availableTranslations.

- */

-void UiGuiSettings::readAvailableTranslations() {

-    QString languageShort;

-    QStringList languageFileList;

-

-    // English is the default language. A translation file does not exist but to have a menu entry, added here.

-    languageFileList << "universalindent_en.qm";

-

-    // Find all translation files in the "translations" directory.

-    QDir translationDirectory = QDir( SettingsPaths::getGlobalFilesPath() + "/translations" );

-    languageFileList << translationDirectory.entryList( QStringList("universalindent_*.qm") );

-

-    // Loop for each found translation file

-    foreach ( languageShort, languageFileList ) {

-        // Remove the leading string "universalindent_" from the filename.

-        languageShort.remove(0,16);

-        // Remove trailing file extension ".qm".

-        languageShort.chop(3);

-

-        _availableTranslations.append(languageShort);

-    }

-}

-

-

-/*!

-    \brief Returns a list of the mnemonics of the available translations.

- */

-QStringList UiGuiSettings::getAvailableTranslations() {

-    return _availableTranslations;

-}

-

-

-/*!

-    \brief Returns the value of the by \a settingsName defined setting as QVariant.

-

-    If the named setting does not exist, 0 is being returned.

-*/

-QVariant UiGuiSettings::getValueByName(QString settingName) {

-    return _qsettings->value("UniversalIndentGUI/" + settingName);

-}

-

-

-/*!

-    \brief Loads the settings for the main application.

-

-    Settings are for example last selected indenter, last loaded source code file and so on.

-*/

-bool UiGuiSettings::initSettings()

-{

-    // Read the version string saved in the settings file.

-    _qsettings->setValue( "UniversalIndentGUI/version", _qsettings->value("UniversalIndentGUI/version", "") );

-

-    // Read windows last size and position from the settings file.

-    _qsettings->setValue( "UniversalIndentGUI/maximized", _qsettings->value("UniversalIndentGUI/maximized", false) );

-    _qsettings->setValue( "UniversalIndentGUI/position", _qsettings->value("UniversalIndentGUI/position", QPoint(50, 50)) );

-    _qsettings->setValue( "UniversalIndentGUI/size", _qsettings->value("UniversalIndentGUI/size", QSize(800, 600)) );

-

-    // Read last selected encoding for the opened source code file.

-    _qsettings->setValue( "UniversalIndentGUI/encoding", _qsettings->value("UniversalIndentGUI/encoding", "UTF-8") );

-

-    // Read maximum length of list for recently opened files.

-    _qsettings->setValue( "UniversalIndentGUI/recentlyOpenedListSize", _qsettings->value("UniversalIndentGUI/recentlyOpenedListSize", 5) );

-

-    // Read if last opened source code file should be loaded on startup.

-    _qsettings->setValue( "UniversalIndentGUI/loadLastSourceCodeFileOnStartup", _qsettings->value("UniversalIndentGUI/loadLastSourceCodeFileOnStartup", true) );

-

-    // Read last opened source code file from the settings file.

-    _qsettings->setValue( "UniversalIndentGUI/lastSourceCodeFile", _qsettings->value("UniversalIndentGUI/lastSourceCodeFile",  _indenterDirctoryStr+"/example.cpp") );

-

-    // Read last selected indenter from the settings file.

-    int selectedIndenter = _qsettings->value("UniversalIndentGUI/selectedIndenter", 0).toInt();

-    if ( selectedIndenter < 0 ) {

-        selectedIndenter = 0;

-    }

-    _qsettings->setValue( "UniversalIndentGUI/selectedIndenter", selectedIndenter );

-

-    // Read if syntax highlighting is enabled.

-    _qsettings->setValue( "UniversalIndentGUI/SyntaxHighlightingEnabled", _qsettings->value("UniversalIndentGUI/SyntaxHighlightingEnabled", true) );

-

-    // Read if white space characters should be displayed.

-    _qsettings->setValue( "UniversalIndentGUI/whiteSpaceIsVisible", _qsettings->value("UniversalIndentGUI/whiteSpaceIsVisible", false) );

-

-    // Read if indenter parameter tool tips are enabled.

-    _qsettings->setValue( "UniversalIndentGUI/indenterParameterTooltipsEnabled", _qsettings->value("UniversalIndentGUI/indenterParameterTooltipsEnabled", true) );

-

-    // Read the tab width from the settings file.

-    _qsettings->setValue( "UniversalIndentGUI/tabWidth", _qsettings->value("UniversalIndentGUI/tabWidth", 4) );

-

-    // Read the last selected language and stores the index it has in the list of available translations.

-    _qsettings->setValue( "UniversalIndentGUI/language", _availableTranslations.indexOf( _qsettings->value("UniversalIndentGUI/language", "").toString() ) );

-

-    // Read the update check settings from the settings file.

-    _qsettings->setValue( "UniversalIndentGUI/CheckForUpdate", _qsettings->value("UniversalIndentGUI/CheckForUpdate", false) );

-    _qsettings->setValue( "UniversalIndentGUI/LastUpdateCheck", _qsettings->value("UniversalIndentGUI/LastUpdateCheck", QDate(1900,1,1)) );

-

-    // Read the main window state.

-    _qsettings->setValue( "UniversalIndentGUI/MainWindowState", _qsettings->value("UniversalIndentGUI/MainWindowState", QByteArray()) );

-

-    return true;

-}

-

-

-/*!

-    \brief Register the by \a propertyName defined property of \a obj to be connected to the setting defined by \a settingName.

-

-    The \a propertyName must be one of those that are listed in the Qt "Properties" documentation section of a Qt Object.

-    All further needed info is retrieved via the \a obj's MetaObject, like the to the property bound signal.

- */

-bool UiGuiSettings::registerObjectProperty( QObject *obj, const QString &propertyName, const QString &settingName )

-{

-    const QMetaObject *metaObject = obj->metaObject();

-    bool connectSuccess = false;

-

-    // Connect to the objects destroyed signal, so that it will be correctly unregistered.

-    connectSuccess = connect(obj, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterObjectProperty(QObject*)));

-

-    int indexOfProp = metaObject->indexOfProperty( qPrintable(propertyName) );

-    if ( connectSuccess && indexOfProp > -1 ) {

-        QMetaProperty mProp = metaObject->property(indexOfProp);

-

-        // Connect to the property's value changed signal.

-        if ( mProp.hasNotifySignal() ) {

-            QMetaMethod signal = mProp.notifySignal();

-            //QString teststr = qPrintable(SIGNAL() + QString(signal.signature()));

-            // The command "SIGNAL() + QString(signal.signature())" assembles the signal methods signature to a valid Qt SIGNAL.

-            connectSuccess = connect(obj, qPrintable(SIGNAL() + QString(signal.signature())), this, SLOT(handleObjectPropertyChange()));

-        }

-

-        if ( connectSuccess ) {

-            _registeredObjectProperties[obj] = QStringList() << propertyName << settingName;

-        }

-        else {

-            //TODO: Write a debug warning to the log.

-            disconnect(obj, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterObjectProperty(QObject*)));

-            return false;

-        }

-

-        // If setting already exists, set the objects property to the setting value.

-        if ( _qsettings->contains("UniversalIndentGUI/" + settingName) ) {

-            mProp.write(obj, _qsettings->value("UniversalIndentGUI/" + settingName));

-        }

-        // Otherwise add the setting and set it to the value of the objects property.

-        else {

-            _qsettings->setValue("UniversalIndentGUI/" + settingName, mProp.read(obj));

-        }

-    }

-    else {

-        //TODO: Write a debug warning to the log.

-        disconnect(obj, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterObjectProperty(QObject*)));

-        return false;

-    }

-

-    return true;

-}

-

-

-/*!

-    \brief Searches the child QObjects of \a obj for a property name and setting name definition within

-    their custom properties and registers this property name to that setting name if both were found.

-

-    The custom properties, for which are searched, are "connectedPropertyName" and "connectedSettingName",

-    where "connectedPropertyName" is the name of a QObject property as it is documented in the QtDocs, and

-    "connectedSettingName" is the name of a setting here within UiGuiSettings. If the mentioned setting

-    name doesn't exist, it will be created.

-

-    Returns true, if all found property and setting definitions could be successfully registered.

-    Returns false, if any of those registrations fails.

- */

-bool UiGuiSettings::registerObjectPropertyRecursive(QObject *obj) {

-    return checkCustomPropertiesAndCallFunction(obj, &UiGuiSettings::registerObjectProperty);

-}

-

-

-/*!

-    \brief Assigns the by \a settingName defined setting value to the by \a propertyName defined property of \a obj.

-

-    Returns true, if the value could be assigned, otherwise returns false, which is the case if settingName doesn't exist

-    within the settings or if the mentioned propertyName wasn't found for the \a obj.

- */

-bool UiGuiSettings::setObjectPropertyToSettingValue( QObject *obj, const QString &propertyName, const QString &settingName )

-{

-    const QMetaObject *metaObject = obj->metaObject();

-

-    int indexOfProp = metaObject->indexOfProperty( qPrintable(propertyName) );

-    if ( indexOfProp > -1 ) {

-        QMetaProperty mProp = metaObject->property(indexOfProp);

-

-        // If setting already exists, set the objects property to the setting value.

-        if ( _qsettings->contains("UniversalIndentGUI/" + settingName) ) {

-            mProp.write(obj, _qsettings->value("UniversalIndentGUI/" + settingName));

-        }

-        // The setting didn't exist so return that setting the objects property failed.

-        else {

-            //TODO: Write a debug warning to the log.

-            return false;

-        }

-    }

-    else {

-        //TODO: Write a debug warning to the log.

-        return false;

-    }

-

-    return true;

-}

-

-

-/*!

-    \brief Searches the child QObjects of \a obj for a property name and setting name definition within

-    their custom properties and sets each property to settings value.

-

-    The custom properties, for which are searched, are "connectedPropertyName" and "connectedSettingName",

-    where "connectedPropertyName" is the name of a QObject property as it is documented in the QtDocs, and

-    "connectedSettingName" is the name of a setting here within UiGuiSettings.

-

-    Returns true, if all found property and setting definitions could be successfully registered.

-    Returns false, if any of those registrations fails.

- */

-bool UiGuiSettings::setObjectPropertyToSettingValueRecursive(QObject *obj) {

-    return checkCustomPropertiesAndCallFunction(obj, &UiGuiSettings::setObjectPropertyToSettingValue);

-}

-

-

-/*!

-    \brief Assigns the by \a propertyName defined property's value of \a obj to the by \a settingName defined setting.

-

-    If the \a settingName didn't exist yet, it will be created.

-

-    Returns true, if the value could be assigned, otherwise returns false, which is the case if the mentioned

-    propertyName wasn't found for the \a obj.

- */

-bool UiGuiSettings::setSettingToObjectPropertyValue( QObject *obj, const QString &propertyName, const QString &settingName )

-{

-    const QMetaObject *metaObject = obj->metaObject();

-

-    int indexOfProp = metaObject->indexOfProperty( qPrintable(propertyName) );

-    if ( indexOfProp > -1 ) {

-        QMetaProperty mProp = metaObject->property(indexOfProp);

-

-        setValueByName(settingName, mProp.read(obj));

-    }

-    else {

-        //TODO: Write a debug warning to the log.

-        return false;

-    }

-

-    return true;

-}

-

-

-/*!

-    \brief Searches the child QObjects of \a obj for a property name and setting name definition within

-    their custom properties and sets each setting to the property value.

-

-    The custom properties, for which are searched, are "connectedPropertyName" and "connectedSettingName",

-    where "connectedPropertyName" is the name of a QObject property as it is documented in the QtDocs, and

-    "connectedSettingName" is the name of a setting here within UiGuiSettings. If the settingName

-    didn't exist yet, it will be created.

-

-    Returns true, if all found property and setting definitions could be successfully registered.

-    Returns false, if any of those registrations fails.

- */

-bool UiGuiSettings::setSettingToObjectPropertyValueRecursive(QObject *obj) {

-    return checkCustomPropertiesAndCallFunction(obj, &UiGuiSettings::setSettingToObjectPropertyValue);

-}

-

-

-/*!

-    \brief Iterates over all \a objs child QObjects and checks whether they have the custom properties

-    "connectedPropertyName" and "connectedSettingName" set. If both are set, it invokes the \a callBackFunc

-    with both.

- */

-bool UiGuiSettings::checkCustomPropertiesAndCallFunction(QObject *obj, bool (UiGuiSettings::*callBackFunc)(QObject *obj, const QString &propertyName, const QString &settingName)) {

-    bool success = true;

-

-    // Find all widgets that have PropertyName and SettingName defined in their style sheet.

-    QList<QObject *> allObjects = obj->findChildren<QObject *>();

-    foreach (QObject *object, allObjects) {

-        QString propertyName = object->property("connectedPropertyName").toString();

-        QString settingName = object->property("connectedSettingName").toString();

-

-        // If property and setting name were found, register that widget with the settings.

-        if ( !propertyName.isEmpty() && !settingName.isEmpty() ) {

-            success &= (this->*callBackFunc)( object, propertyName, settingName );

-        }

-    }

-

-    return success;

-}

-

-

-/*!

-    \brief The with a certain property registered \a obj gets unregistered.

- */

-void UiGuiSettings::unregisterObjectProperty(QObject *obj) {

-    if ( _registeredObjectProperties.contains(obj) ) {

-        const QMetaObject *metaObject = obj->metaObject();

-        QString propertyName = _registeredObjectProperties[obj].first();

-        QString settingName = _registeredObjectProperties[obj].last();

-

-        bool connectSuccess = false;

-        int indexOfProp = metaObject->indexOfProperty( qPrintable(propertyName) );

-        if ( indexOfProp > -1 ) {

-            QMetaProperty mProp = metaObject->property(indexOfProp);

-

-            // Disconnect to the property's value changed signal.

-            if ( mProp.hasNotifySignal() ) {

-                QMetaMethod signal = mProp.notifySignal();

-                // The command "SIGNAL() + QString(signal.signature())" assembles the signal methods signature to a valid Qt SIGNAL.

-                connectSuccess = disconnect(obj, qPrintable(SIGNAL() + QString(signal.signature())), this, SLOT(handleObjectPropertyChange()));

-            }

-        }

-        _registeredObjectProperties.remove(obj);

-    }

-}

-

-

-/*!

-    \brief Registers a slot form the \a obj by its \a slotName to be invoked, if the by \a settingName defined

-    setting changes.

-

-    The registered slot may have no parameters or exactly one. If it accepts one parameter, whenever the setting

-    \a settingName changes the slot gets tried to be invoked with the settings value as parameter. This only works,

-    if the slot parameter is of the same type as the setting.

- */

-bool UiGuiSettings::registerObjectSlot(QObject *obj, const QString &slotName, const QString &settingName) {

-

-    const QMetaObject *metaObject = obj->metaObject();

-

-    bool connectSuccess = false;

-    // Connect to the objects destroyed signal, so that it will be correctly unregistered.

-    connectSuccess = connect(obj, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterObjectSlot(QObject*)));

-

-    QString normalizedSlotName = QMetaObject::normalizedSignature( qPrintable(slotName) );

-    int indexOfMethod = metaObject->indexOfMethod( qPrintable(normalizedSlotName) );

-    if ( connectSuccess && indexOfMethod > -1 ) {

-        QMetaMethod mMethod = metaObject->method(indexOfMethod);

-        //QMetaMethod::Access access = mMethod.access();

-        //QMetaMethod::MethodType methType = mMethod.methodType();

-

-        // Since the method can at maximum be invoked with the setting value as argument,

-        // only methods taking max one argument are allowed.

-        if ( mMethod.parameterTypes().size() <= 1 ) {

-            _registeredObjectSlots.insert(obj, QStringList() << normalizedSlotName << settingName);

-        }

-        else {

-            //TODO: Write a debug warning to the log.

-            disconnect(obj, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterObjectSlot(QObject*)));

-            return false;

-        }

-    }

-    else {

-        //TODO: Write a debug warning to the log.

-        disconnect(obj, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterObjectSlot(QObject*)));

-        return false;

-    }

-

-    return true;

-}

-

-

-/*!

-    \brief If \a obj, \a slotName and \a settingName are given, that certain connection is unregistered.

-    If only \a obj is given, all to this object registered slot-setting connections are unregistered.

- */

-void UiGuiSettings::unregisterObjectSlot(QObject *obj, const QString &slotName, const QString &settingName) {

-    //const QMetaObject *metaObject = obj->metaObject();

-    QString normalizedSlotName = QMetaObject::normalizedSignature( qPrintable(slotName) );

-    QMutableMapIterator<QObject*, QStringList> it(_registeredObjectSlots);

-    while (it.hasNext()) {

-        it.next();

-        if (it.key() == obj && slotName.isEmpty() && settingName.isEmpty())

-            it.remove();

-        else if (it.key() == obj && it.value().first() == slotName && it.value().last() == settingName)

-            it.remove();

-    }

-}

-

-

-/*!

-    \brief This private slot gets invoked whenever a registered objects property changes

-    and distributes the new value to all other to the same settingName registered objects.

- */

-void UiGuiSettings::handleObjectPropertyChange() {

-    QObject *obj = QObject::sender();

-    QString className = obj->metaObject()->className();

-    const QMetaObject *metaObject = obj->metaObject();

-    QString propertyName = _registeredObjectProperties[obj].first();

-    QString settingName = _registeredObjectProperties[obj].last();

-

-    int indexOfProp = metaObject->indexOfProperty( qPrintable(propertyName) );

-    if ( indexOfProp > -1 ) {

-        QMetaProperty mProp = metaObject->property(indexOfProp);

-        setValueByName(settingName, mProp.read(obj));

-    }

-}

-

-

-/*!

-    \brief Sets the setting defined by \a settingName to \a value.

-

-    When setting a changed value, all to this settingName registered objects get

-    the changed value set too.

-    If the \a settingName didn't exist yet, it will be created.

- */

-void UiGuiSettings::setValueByName(const QString &settingName, const QVariant &value) {

-    // Do the updating only, if the setting was really changed.

-    if ( _qsettings->value("UniversalIndentGUI/" + settingName) != value ) {

-        _qsettings->setValue("UniversalIndentGUI/" + settingName, value);

-

-        // Set the new value for all registered object properties for settingName.

-        for ( QMap<QObject*, QStringList>::ConstIterator it = _registeredObjectProperties.begin(); it != _registeredObjectProperties.end(); ++it ) {

-            if ( it.value().last() == settingName ) {

-                QObject *obj = it.key();

-                const QMetaObject *metaObject = obj->metaObject();

-                QString propertyName = it.value().first();

-

-                int indexOfProp = metaObject->indexOfProperty( qPrintable(propertyName) );

-                if ( indexOfProp > -1 ) {

-                    QMetaProperty mProp = metaObject->property(indexOfProp);

-                    mProp.write(obj, value);

-                }

-            }

-        }

-

-        // Invoke all registered object methods for settingName.

-        for ( QMap<QObject*, QStringList>::ConstIterator it = _registeredObjectSlots.begin(); it != _registeredObjectSlots.end(); ++it ) {

-            if ( it.value().last() == settingName ) {

-                QObject *obj = it.key();

-                const QMetaObject *metaObject = obj->metaObject();

-                QString slotName = it.value().first();

-

-                int indexOfMethod = metaObject->indexOfMethod( qPrintable(slotName) );

-                if ( indexOfMethod > -1 ) {

-                    QMetaMethod mMethod = metaObject->method(indexOfMethod);

-                    //QMetaMethod::Access access = mMethod.access();

-                    //QMetaMethod::MethodType methType = mMethod.methodType();

-

-                    bool success = false;

-

-                    // Handle registered slots taking one parameter.

-                    if ( mMethod.parameterTypes().size() == 1 ) {

-                        if ( mMethod.parameterTypes().first() == value.typeName() ) {

-                            success = invokeMethodWithValue(obj, mMethod, value);

-                        }

-                    }

-                    // Handle registered slots taking zero parameters.

-                    else {

-                        success = mMethod.invoke( obj, Qt::DirectConnection );

-                    }

-

-                    if ( success == false ) {

-                        // TODO: Write a warning to the log if no success.

-                    }

-                }

-            }

-        }

-    }

-}

-

-

-#include <QBitArray>

-#include <QBitmap>

-#include <QBrush>

-#include <QCursor>

-#include <QDateTime>

-#include <QFont>

-#include <QIcon>

-#include <QKeySequence>

-#include <QLocale>

-#include <QPalette>

-#include <QPen>

-#include <QSizePolicy>

-#include <QTextFormat>

-#include <QTextLength>

-#include <QUrl>

-#if QT_VERSION >= 0x040600

-#include <QMatrix4x4>

-#include <QVector2D>

-#endif

-

-bool UiGuiSettings::invokeMethodWithValue( QObject *obj, QMetaMethod mMethod, QVariant value )

-{

-    switch (value.type()) {

-    case QVariant::BitArray :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QBitArray, value.toBitArray()) );

-    case QVariant::Bitmap :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QBitmap, value.value<QBitmap>()) );

-    case QVariant::Bool :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(bool, value.toBool()) );

-    case QVariant::Brush :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QBrush, value.value<QBrush>()) );

-    case QVariant::ByteArray :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QByteArray, value.toByteArray()) );

-    case QVariant::Char :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QChar, value.toChar()) );

-    case QVariant::Color :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QColor, value.value<QColor>()) );

-    case QVariant::Cursor :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QCursor, value.value<QCursor>()) );

-    case QVariant::Date :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QDate, value.toDate()) );

-    case QVariant::DateTime :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QDateTime, value.toDateTime()) );

-    case QVariant::Double :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(double, value.toDouble()) );

-    case QVariant::Font :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QFont, value.value<QFont>()) );

-    case QVariant::Hash :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QVariantHash, value.toHash()) );

-    case QVariant::Icon :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QIcon, value.value<QIcon>()) );

-    case QVariant::Image :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QImage, value.value<QImage>()) );

-    case QVariant::Int :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(int, value.toInt()) );

-    case QVariant::KeySequence :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QKeySequence, value.value<QKeySequence>()) );

-    case QVariant::Line :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QLine, value.toLine()) );

-    case QVariant::LineF :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QLineF, value.toLineF()) );

-    case QVariant::List :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QVariantList, value.toList()) );

-    case QVariant::Locale :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QLocale, value.toLocale()) );

-    case QVariant::LongLong :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(qlonglong, value.toLongLong()) );

-    case QVariant::Map :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QVariantMap, value.toMap()) );

-    case QVariant::Matrix :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QMatrix, value.value<QMatrix>()) );

-    case QVariant::Transform :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QTransform, value.value<QTransform>()) );

-#if QT_VERSION >= 0x040600

-    case QVariant::Matrix4x4 :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QMatrix4x4, value.value<QMatrix4x4>()) );

-#endif

-    case QVariant::Palette :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QPalette, value.value<QPalette>()) );

-    case QVariant::Pen :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QPen, value.value<QPen>()) );

-    case QVariant::Pixmap :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QPixmap, value.value<QPixmap>()) );

-    case QVariant::Point :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QPoint, value.toPoint()) );

-        //    case QVariant::PointArray :

-        //        return Q_ARG(QPointArray, value.value<QPointArray>()) );

-    case QVariant::PointF :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QPointF, value.toPointF()) );

-    case QVariant::Polygon :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QPolygon, value.value<QPolygon>()) );

-#if QT_VERSION >= 0x040600

-    case QVariant::Quaternion :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QQuaternion, value.value<QQuaternion>()) );

-#endif

-    case QVariant::Rect :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QRect, value.toRect()) );

-    case QVariant::RectF :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QRectF, value.toRectF()) );

-    case QVariant::RegExp :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QRegExp, value.toRegExp()) );

-    case QVariant::Region :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QRegion, value.value<QRegion>()) );

-    case QVariant::Size :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QSize, value.toSize()) );

-    case QVariant::SizeF :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QSizeF, value.toSizeF()) );

-    case QVariant::SizePolicy :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QSizePolicy, value.value<QSizePolicy>()) );

-    case QVariant::String :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QString, value.toString()) );

-    case QVariant::StringList :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QStringList, value.toStringList()) );

-    case QVariant::TextFormat :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QTextFormat, value.value<QTextFormat>()) );

-    case QVariant::TextLength :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QTextLength, value.value<QTextLength>()) );

-    case QVariant::Time :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QTime, value.toTime()) );

-    case QVariant::UInt :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(uint, value.toUInt()) );

-    case QVariant::ULongLong :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(qulonglong, value.toULongLong()) );

-    case QVariant::Url :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QUrl, value.toUrl()) );

-#if QT_VERSION >= 0x040600

-    case QVariant::Vector2D :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QVector2D, value.value<QVector2D>()) );

-    case QVariant::Vector3D :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QVector3D, value.value<QVector3D>()) );

-    case QVariant::Vector4D :

-        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QVector4D, value.value<QVector4D>()) );

-#endif

-    default:

-        return false;

-    }

-}

+/***************************************************************************
+*   Copyright (C) 2006-2012 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 "UiGuiSettings.h"
+
+#include "SettingsPaths.h"
+
+#include <tqsettings.h>
+#include <tqpoint.h>
+#include <tqsize.h>
+#include <tqdir.h>
+#include <tqdate.h>
+#include <tqstringlist.h>
+#include <tqcoreapplication.h>
+#include <tqmetamethod.h>
+#include <tqmetaproperty.h>
+#include <tqwidget.h>
+
+//! \defgroup grp_Settings All concerning the settings.
+
+/*!
+    \class UiGuiSettings
+    \ingroup grp_Settings
+    \brief Handles the settings of the program. Reads them on startup and saves them on exit.
+    Is a singleton class and can only be accessed via getInstance().
+*/
+
+// Inits the single class instance pointer.
+QWeakPointer<UiGuiSettings> UiGuiSettings::_instance;
+
+
+/*!
+    \brief The constructor for the settings.
+*/
+UiGuiSettings::UiGuiSettings() : QObject() {
+    // Create the main application settings object from the UniversalIndentGUI.ini file.
+    _qsettings = new QSettings(SettingsPaths::getSettingsPath() + "/UniversalIndentGUI.ini", QSettings::IniFormat, this);
+
+    _indenterDirctoryStr = SettingsPaths::getGlobalFilesPath() + "/indenters";
+    readAvailableTranslations();
+    initSettings();
+}
+
+
+/*!
+    \brief Returns the instance of the settings class. If no instance exists, ONE will be created.
+ */
+QSharedPointer<UiGuiSettings> UiGuiSettings::getInstance() {
+	QSharedPointer<UiGuiSettings> sharedInstance = _instance.toStrongRef();
+    if ( sharedInstance.isNull() ) {
+        // Create the settings object, which loads all UiGui settings from a file.
+        sharedInstance = QSharedPointer<UiGuiSettings>(new UiGuiSettings());
+        _instance = sharedInstance.toWeakRef();
+    }
+
+    return sharedInstance;
+}
+
+
+/*!
+    \brief The destructor saves the settings to a file.
+ */
+UiGuiSettings::~UiGuiSettings() {
+    // Convert the language setting from an integer index to a string.
+    int index = _qsettings->value("UniversalIndentGUI/language", 0).toInt();
+    if ( index < 0 || index >= _availableTranslations.size() )
+        index = 0;
+
+    _qsettings->setValue( "UniversalIndentGUI/language", _availableTranslations.at(index) );
+}
+
+
+/*!
+    \brief Scans the translations directory for available translation files and
+    stores them in the QList \a _availableTranslations.
+ */
+void UiGuiSettings::readAvailableTranslations() {
+    QString languageShort;
+    QStringList languageFileList;
+
+    // English is the default language. A translation file does not exist but to have a menu entry, added here.
+    languageFileList << "universalindent_en.qm";
+
+    // Find all translation files in the "translations" directory.
+    QDir translationDirectory = QDir( SettingsPaths::getGlobalFilesPath() + "/translations" );
+    languageFileList << translationDirectory.entryList( QStringList("universalindent_*.qm") );
+
+    // Loop for each found translation file
+    foreach ( languageShort, languageFileList ) {
+        // Remove the leading string "universalindent_" from the filename.
+        languageShort.remove(0,16);
+        // Remove trailing file extension ".qm".
+        languageShort.chop(3);
+
+        _availableTranslations.append(languageShort);
+    }
+}
+
+
+/*!
+    \brief Returns a list of the mnemonics of the available translations.
+ */
+QStringList UiGuiSettings::getAvailableTranslations() {
+    return _availableTranslations;
+}
+
+
+/*!
+    \brief Returns the value of the by \a settingsName defined setting as QVariant.
+
+    If the named setting does not exist, 0 is being returned.
+*/
+QVariant UiGuiSettings::getValueByName(QString settingName) {
+    return _qsettings->value("UniversalIndentGUI/" + settingName);
+}
+
+
+/*!
+    \brief Loads the settings for the main application.
+
+    Settings are for example last selected indenter, last loaded source code file and so on.
+*/
+bool UiGuiSettings::initSettings()
+{
+    // Read the version string saved in the settings file.
+    _qsettings->setValue( "UniversalIndentGUI/version", _qsettings->value("UniversalIndentGUI/version", "") );
+
+    // Read windows last size and position from the settings file.
+    _qsettings->setValue( "UniversalIndentGUI/maximized", _qsettings->value("UniversalIndentGUI/maximized", false) );
+    _qsettings->setValue( "UniversalIndentGUI/position", _qsettings->value("UniversalIndentGUI/position", QPoint(50, 50)) );
+    _qsettings->setValue( "UniversalIndentGUI/size", _qsettings->value("UniversalIndentGUI/size", QSize(800, 600)) );
+
+    // Read last selected encoding for the opened source code file.
+    _qsettings->setValue( "UniversalIndentGUI/encoding", _qsettings->value("UniversalIndentGUI/encoding", "UTF-8") );
+
+    // Read maximum length of list for recently opened files.
+    _qsettings->setValue( "UniversalIndentGUI/recentlyOpenedListSize", _qsettings->value("UniversalIndentGUI/recentlyOpenedListSize", 5) );
+
+    // Read if last opened source code file should be loaded on startup.
+    _qsettings->setValue( "UniversalIndentGUI/loadLastSourceCodeFileOnStartup", _qsettings->value("UniversalIndentGUI/loadLastSourceCodeFileOnStartup", true) );
+
+    // Read last opened source code file from the settings file.
+    _qsettings->setValue( "UniversalIndentGUI/lastSourceCodeFile", _qsettings->value("UniversalIndentGUI/lastSourceCodeFile",  _indenterDirctoryStr+"/example.cpp") );
+
+    // Read last selected indenter from the settings file.
+    int selectedIndenter = _qsettings->value("UniversalIndentGUI/selectedIndenter", 0).toInt();
+    if ( selectedIndenter < 0 ) {
+        selectedIndenter = 0;
+    }
+    _qsettings->setValue( "UniversalIndentGUI/selectedIndenter", selectedIndenter );
+
+    // Read if syntax highlighting is enabled.
+    _qsettings->setValue( "UniversalIndentGUI/SyntaxHighlightingEnabled", _qsettings->value("UniversalIndentGUI/SyntaxHighlightingEnabled", true) );
+
+    // Read if white space characters should be displayed.
+    _qsettings->setValue( "UniversalIndentGUI/whiteSpaceIsVisible", _qsettings->value("UniversalIndentGUI/whiteSpaceIsVisible", false) );
+
+    // Read if indenter parameter tool tips are enabled.
+    _qsettings->setValue( "UniversalIndentGUI/indenterParameterTooltipsEnabled", _qsettings->value("UniversalIndentGUI/indenterParameterTooltipsEnabled", true) );
+
+    // Read the tab width from the settings file.
+    _qsettings->setValue( "UniversalIndentGUI/tabWidth", _qsettings->value("UniversalIndentGUI/tabWidth", 4) );
+
+    // Read the last selected language and stores the index it has in the list of available translations.
+    _qsettings->setValue( "UniversalIndentGUI/language", _availableTranslations.indexOf( _qsettings->value("UniversalIndentGUI/language", "").toString() ) );
+
+    // Read the update check settings from the settings file.
+    _qsettings->setValue( "UniversalIndentGUI/CheckForUpdate", _qsettings->value("UniversalIndentGUI/CheckForUpdate", false) );
+    _qsettings->setValue( "UniversalIndentGUI/LastUpdateCheck", _qsettings->value("UniversalIndentGUI/LastUpdateCheck", QDate(1900,1,1)) );
+
+    // Read the main window state.
+    _qsettings->setValue( "UniversalIndentGUI/MainWindowState", _qsettings->value("UniversalIndentGUI/MainWindowState", QByteArray()) );
+
+    return true;
+}
+
+
+/*!
+    \brief Register the by \a propertyName defined property of \a obj to be connected to the setting defined by \a settingName.
+
+    The \a propertyName must be one of those that are listed in the Qt "Properties" documentation section of a Qt Object.
+    All further needed info is retrieved via the \a obj's MetaObject, like the to the property bound signal.
+ */
+bool UiGuiSettings::registerObjectProperty( QObject *obj, const QString &propertyName, const QString &settingName )
+{
+    const QMetaObject *metaObject = obj->metaObject();
+    bool connectSuccess = false;
+
+    // Connect to the objects destroyed signal, so that it will be correctly unregistered.
+    connectSuccess = connect(obj, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterObjectProperty(QObject*)));
+
+    int indexOfProp = metaObject->indexOfProperty( qPrintable(propertyName) );
+    if ( connectSuccess && indexOfProp > -1 ) {
+        QMetaProperty mProp = metaObject->property(indexOfProp);
+
+        // Connect to the property's value changed signal.
+        if ( mProp.hasNotifySignal() ) {
+            QMetaMethod signal = mProp.notifySignal();
+            //QString teststr = qPrintable(SIGNAL() + QString(signal.signature()));
+            // The command "SIGNAL() + QString(signal.signature())" assembles the signal methods signature to a valid Qt SIGNAL.
+            connectSuccess = connect(obj, qPrintable(SIGNAL() + QString(signal.signature())), this, SLOT(handleObjectPropertyChange()));
+        }
+
+        if ( connectSuccess ) {
+            _registeredObjectProperties[obj] = QStringList() << propertyName << settingName;
+        }
+        else {
+            //TODO: Write a debug warning to the log.
+            disconnect(obj, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterObjectProperty(QObject*)));
+            return false;
+        }
+
+        // If setting already exists, set the objects property to the setting value.
+        if ( _qsettings->contains("UniversalIndentGUI/" + settingName) ) {
+            mProp.write(obj, _qsettings->value("UniversalIndentGUI/" + settingName));
+        }
+        // Otherwise add the setting and set it to the value of the objects property.
+        else {
+            _qsettings->setValue("UniversalIndentGUI/" + settingName, mProp.read(obj));
+        }
+    }
+    else {
+        //TODO: Write a debug warning to the log.
+        disconnect(obj, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterObjectProperty(QObject*)));
+        return false;
+    }
+
+    return true;
+}
+
+
+/*!
+    \brief Searches the child QObjects of \a obj for a property name and setting name definition within
+    their custom properties and registers this property name to that setting name if both were found.
+
+    The custom properties, for which are searched, are "connectedPropertyName" and "connectedSettingName",
+    where "connectedPropertyName" is the name of a QObject property as it is documented in the QtDocs, and
+    "connectedSettingName" is the name of a setting here within UiGuiSettings. If the mentioned setting
+    name doesn't exist, it will be created.
+
+    Returns true, if all found property and setting definitions could be successfully registered.
+    Returns false, if any of those registrations fails.
+ */
+bool UiGuiSettings::registerObjectPropertyRecursive(QObject *obj) {
+    return checkCustomPropertiesAndCallFunction(obj, &UiGuiSettings::registerObjectProperty);
+}
+
+
+/*!
+    \brief Assigns the by \a settingName defined setting value to the by \a propertyName defined property of \a obj.
+
+    Returns true, if the value could be assigned, otherwise returns false, which is the case if settingName doesn't exist
+    within the settings or if the mentioned propertyName wasn't found for the \a obj.
+ */
+bool UiGuiSettings::setObjectPropertyToSettingValue( QObject *obj, const QString &propertyName, const QString &settingName )
+{
+    const QMetaObject *metaObject = obj->metaObject();
+
+    int indexOfProp = metaObject->indexOfProperty( qPrintable(propertyName) );
+    if ( indexOfProp > -1 ) {
+        QMetaProperty mProp = metaObject->property(indexOfProp);
+
+        // If setting already exists, set the objects property to the setting value.
+        if ( _qsettings->contains("UniversalIndentGUI/" + settingName) ) {
+            mProp.write(obj, _qsettings->value("UniversalIndentGUI/" + settingName));
+        }
+        // The setting didn't exist so return that setting the objects property failed.
+        else {
+            //TODO: Write a debug warning to the log.
+            return false;
+        }
+    }
+    else {
+        //TODO: Write a debug warning to the log.
+        return false;
+    }
+
+    return true;
+}
+
+
+/*!
+    \brief Searches the child QObjects of \a obj for a property name and setting name definition within
+    their custom properties and sets each property to settings value.
+
+    The custom properties, for which are searched, are "connectedPropertyName" and "connectedSettingName",
+    where "connectedPropertyName" is the name of a QObject property as it is documented in the QtDocs, and
+    "connectedSettingName" is the name of a setting here within UiGuiSettings.
+
+    Returns true, if all found property and setting definitions could be successfully registered.
+    Returns false, if any of those registrations fails.
+ */
+bool UiGuiSettings::setObjectPropertyToSettingValueRecursive(QObject *obj) {
+    return checkCustomPropertiesAndCallFunction(obj, &UiGuiSettings::setObjectPropertyToSettingValue);
+}
+
+
+/*!
+    \brief Assigns the by \a propertyName defined property's value of \a obj to the by \a settingName defined setting.
+
+    If the \a settingName didn't exist yet, it will be created.
+
+    Returns true, if the value could be assigned, otherwise returns false, which is the case if the mentioned
+    propertyName wasn't found for the \a obj.
+ */
+bool UiGuiSettings::setSettingToObjectPropertyValue( QObject *obj, const QString &propertyName, const QString &settingName )
+{
+    const QMetaObject *metaObject = obj->metaObject();
+
+    int indexOfProp = metaObject->indexOfProperty( qPrintable(propertyName) );
+    if ( indexOfProp > -1 ) {
+        QMetaProperty mProp = metaObject->property(indexOfProp);
+
+        setValueByName(settingName, mProp.read(obj));
+    }
+    else {
+        //TODO: Write a debug warning to the log.
+        return false;
+    }
+
+    return true;
+}
+
+
+/*!
+    \brief Searches the child QObjects of \a obj for a property name and setting name definition within
+    their custom properties and sets each setting to the property value.
+
+    The custom properties, for which are searched, are "connectedPropertyName" and "connectedSettingName",
+    where "connectedPropertyName" is the name of a QObject property as it is documented in the QtDocs, and
+    "connectedSettingName" is the name of a setting here within UiGuiSettings. If the settingName
+    didn't exist yet, it will be created.
+
+    Returns true, if all found property and setting definitions could be successfully registered.
+    Returns false, if any of those registrations fails.
+ */
+bool UiGuiSettings::setSettingToObjectPropertyValueRecursive(QObject *obj) {
+    return checkCustomPropertiesAndCallFunction(obj, &UiGuiSettings::setSettingToObjectPropertyValue);
+}
+
+
+/*!
+    \brief Iterates over all \a objs child QObjects and checks whether they have the custom properties
+    "connectedPropertyName" and "connectedSettingName" set. If both are set, it invokes the \a callBackFunc
+    with both.
+ */
+bool UiGuiSettings::checkCustomPropertiesAndCallFunction(QObject *obj, bool (UiGuiSettings::*callBackFunc)(QObject *obj, const QString &propertyName, const QString &settingName)) {
+    bool success = true;
+
+    // Find all widgets that have PropertyName and SettingName defined in their style sheet.
+    QList<QObject *> allObjects = obj->findChildren<QObject *>();
+    foreach (QObject *object, allObjects) {
+        QString propertyName = object->property("connectedPropertyName").toString();
+        QString settingName = object->property("connectedSettingName").toString();
+
+        // If property and setting name were found, register that widget with the settings.
+        if ( !propertyName.isEmpty() && !settingName.isEmpty() ) {
+            success &= (this->*callBackFunc)( object, propertyName, settingName );
+        }
+    }
+
+    return success;
+}
+
+
+/*!
+    \brief The with a certain property registered \a obj gets unregistered.
+ */
+void UiGuiSettings::unregisterObjectProperty(QObject *obj) {
+    if ( _registeredObjectProperties.contains(obj) ) {
+        const QMetaObject *metaObject = obj->metaObject();
+        QString propertyName = _registeredObjectProperties[obj].first();
+        QString settingName = _registeredObjectProperties[obj].last();
+
+        bool connectSuccess = false;
+        int indexOfProp = metaObject->indexOfProperty( qPrintable(propertyName) );
+        if ( indexOfProp > -1 ) {
+            QMetaProperty mProp = metaObject->property(indexOfProp);
+
+            // Disconnect to the property's value changed signal.
+            if ( mProp.hasNotifySignal() ) {
+                QMetaMethod signal = mProp.notifySignal();
+                // The command "SIGNAL() + QString(signal.signature())" assembles the signal methods signature to a valid Qt SIGNAL.
+                connectSuccess = disconnect(obj, qPrintable(SIGNAL() + QString(signal.signature())), this, SLOT(handleObjectPropertyChange()));
+            }
+        }
+        _registeredObjectProperties.remove(obj);
+    }
+}
+
+
+/*!
+    \brief Registers a slot form the \a obj by its \a slotName to be invoked, if the by \a settingName defined
+    setting changes.
+
+    The registered slot may have no parameters or exactly one. If it accepts one parameter, whenever the setting
+    \a settingName changes the slot gets tried to be invoked with the settings value as parameter. This only works,
+    if the slot parameter is of the same type as the setting.
+ */
+bool UiGuiSettings::registerObjectSlot(QObject *obj, const QString &slotName, const QString &settingName) {
+
+    const QMetaObject *metaObject = obj->metaObject();
+
+    bool connectSuccess = false;
+    // Connect to the objects destroyed signal, so that it will be correctly unregistered.
+    connectSuccess = connect(obj, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterObjectSlot(QObject*)));
+
+    QString normalizedSlotName = QMetaObject::normalizedSignature( qPrintable(slotName) );
+    int indexOfMethod = metaObject->indexOfMethod( qPrintable(normalizedSlotName) );
+    if ( connectSuccess && indexOfMethod > -1 ) {
+        QMetaMethod mMethod = metaObject->method(indexOfMethod);
+        //QMetaMethod::Access access = mMethod.access();
+        //QMetaMethod::MethodType methType = mMethod.methodType();
+
+        // Since the method can at maximum be invoked with the setting value as argument,
+        // only methods taking max one argument are allowed.
+        if ( mMethod.parameterTypes().size() <= 1 ) {
+            _registeredObjectSlots.insert(obj, QStringList() << normalizedSlotName << settingName);
+        }
+        else {
+            //TODO: Write a debug warning to the log.
+            disconnect(obj, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterObjectSlot(QObject*)));
+            return false;
+        }
+    }
+    else {
+        //TODO: Write a debug warning to the log.
+        disconnect(obj, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterObjectSlot(QObject*)));
+        return false;
+    }
+
+    return true;
+}
+
+
+/*!
+    \brief If \a obj, \a slotName and \a settingName are given, that certain connection is unregistered.
+    If only \a obj is given, all to this object registered slot-setting connections are unregistered.
+ */
+void UiGuiSettings::unregisterObjectSlot(QObject *obj, const QString &slotName, const QString &settingName) {
+    //const QMetaObject *metaObject = obj->metaObject();
+    QString normalizedSlotName = QMetaObject::normalizedSignature( qPrintable(slotName) );
+    QMutableMapIterator<QObject*, QStringList> it(_registeredObjectSlots);
+    while (it.hasNext()) {
+        it.next();
+        if (it.key() == obj && slotName.isEmpty() && settingName.isEmpty())
+            it.remove();
+        else if (it.key() == obj && it.value().first() == slotName && it.value().last() == settingName)
+            it.remove();
+    }
+}
+
+
+/*!
+    \brief This private slot gets invoked whenever a registered objects property changes
+    and distributes the new value to all other to the same settingName registered objects.
+ */
+void UiGuiSettings::handleObjectPropertyChange() {
+    QObject *obj = QObject::sender();
+    QString className = obj->metaObject()->className();
+    const QMetaObject *metaObject = obj->metaObject();
+    QString propertyName = _registeredObjectProperties[obj].first();
+    QString settingName = _registeredObjectProperties[obj].last();
+
+    int indexOfProp = metaObject->indexOfProperty( qPrintable(propertyName) );
+    if ( indexOfProp > -1 ) {
+        QMetaProperty mProp = metaObject->property(indexOfProp);
+        setValueByName(settingName, mProp.read(obj));
+    }
+}
+
+
+/*!
+    \brief Sets the setting defined by \a settingName to \a value.
+
+    When setting a changed value, all to this settingName registered objects get
+    the changed value set too.
+    If the \a settingName didn't exist yet, it will be created.
+ */
+void UiGuiSettings::setValueByName(const QString &settingName, const QVariant &value) {
+    // Do the updating only, if the setting was really changed.
+    if ( _qsettings->value("UniversalIndentGUI/" + settingName) != value ) {
+        _qsettings->setValue("UniversalIndentGUI/" + settingName, value);
+
+        // Set the new value for all registered object properties for settingName.
+        for ( QMap<QObject*, QStringList>::ConstIterator it = _registeredObjectProperties.begin(); it != _registeredObjectProperties.end(); ++it ) {
+            if ( it.value().last() == settingName ) {
+                QObject *obj = it.key();
+                const QMetaObject *metaObject = obj->metaObject();
+                QString propertyName = it.value().first();
+
+                int indexOfProp = metaObject->indexOfProperty( qPrintable(propertyName) );
+                if ( indexOfProp > -1 ) {
+                    QMetaProperty mProp = metaObject->property(indexOfProp);
+                    mProp.write(obj, value);
+                }
+            }
+        }
+
+        // Invoke all registered object methods for settingName.
+        for ( QMap<QObject*, QStringList>::ConstIterator it = _registeredObjectSlots.begin(); it != _registeredObjectSlots.end(); ++it ) {
+            if ( it.value().last() == settingName ) {
+                QObject *obj = it.key();
+                const QMetaObject *metaObject = obj->metaObject();
+                QString slotName = it.value().first();
+
+                int indexOfMethod = metaObject->indexOfMethod( qPrintable(slotName) );
+                if ( indexOfMethod > -1 ) {
+                    QMetaMethod mMethod = metaObject->method(indexOfMethod);
+                    //QMetaMethod::Access access = mMethod.access();
+                    //QMetaMethod::MethodType methType = mMethod.methodType();
+
+                    bool success = false;
+
+                    // Handle registered slots taking one parameter.
+                    if ( mMethod.parameterTypes().size() == 1 ) {
+                        if ( mMethod.parameterTypes().first() == value.typeName() ) {
+                            success = invokeMethodWithValue(obj, mMethod, value);
+                        }
+                    }
+                    // Handle registered slots taking zero parameters.
+                    else {
+                        success = mMethod.invoke( obj, Qt::DirectConnection );
+                    }
+
+                    if ( success == false ) {
+                        // TODO: Write a warning to the log if no success.
+                    }
+                }
+            }
+        }
+    }
+}
+
+
+#include <tqbitarray.h>
+#include <tqbitmap.h>
+#include <tqbrush.h>
+#include <tqcursor.h>
+#include <tqdatetime.h>
+#include <tqfont.h>
+#include <tqicon.h>
+#include <tqkeysequence.h>
+#include <tqlocale.h>
+#include <tqpalette.h>
+#include <tqpen.h>
+#include <tqsizepolicy.h>
+#include <tqtextformat.h>
+#include <tqtextlength.h>
+#include <tqurl.h>
+#if QT_VERSION >= 0x040600
+#include <tqmatrix4x4.h>
+#include <tqvector2d.h>
+#endif
+
+bool UiGuiSettings::invokeMethodWithValue( QObject *obj, QMetaMethod mMethod, QVariant value )
+{
+    switch (value.type()) {
+    case QVariant::BitArray :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QBitArray, value.toBitArray()) );
+    case QVariant::Bitmap :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QBitmap, value.value<QBitmap>()) );
+    case QVariant::Bool :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(bool, value.toBool()) );
+    case QVariant::Brush :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QBrush, value.value<QBrush>()) );
+    case QVariant::ByteArray :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QByteArray, value.toByteArray()) );
+    case QVariant::Char :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QChar, value.toChar()) );
+    case QVariant::Color :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QColor, value.value<QColor>()) );
+    case QVariant::Cursor :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QCursor, value.value<QCursor>()) );
+    case QVariant::Date :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QDate, value.toDate()) );
+    case QVariant::DateTime :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QDateTime, value.toDateTime()) );
+    case QVariant::Double :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(double, value.toDouble()) );
+    case QVariant::Font :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QFont, value.value<QFont>()) );
+    case QVariant::Hash :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QVariantHash, value.toHash()) );
+    case QVariant::Icon :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QIcon, value.value<QIcon>()) );
+    case QVariant::Image :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QImage, value.value<QImage>()) );
+    case QVariant::Int :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(int, value.toInt()) );
+    case QVariant::KeySequence :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QKeySequence, value.value<QKeySequence>()) );
+    case QVariant::Line :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QLine, value.toLine()) );
+    case QVariant::LineF :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QLineF, value.toLineF()) );
+    case QVariant::List :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QVariantList, value.toList()) );
+    case QVariant::Locale :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QLocale, value.toLocale()) );
+    case QVariant::LongLong :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(qlonglong, value.toLongLong()) );
+    case QVariant::Map :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QVariantMap, value.toMap()) );
+    case QVariant::Matrix :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QMatrix, value.value<QMatrix>()) );
+    case QVariant::Transform :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QTransform, value.value<QTransform>()) );
+#if QT_VERSION >= 0x040600
+    case QVariant::Matrix4x4 :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QMatrix4x4, value.value<QMatrix4x4>()) );
+#endif
+    case QVariant::Palette :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QPalette, value.value<QPalette>()) );
+    case QVariant::Pen :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QPen, value.value<QPen>()) );
+    case QVariant::Pixmap :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QPixmap, value.value<QPixmap>()) );
+    case QVariant::Point :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QPoint, value.toPoint()) );
+        //    case QVariant::PointArray :
+        //        return Q_ARG(QPointArray, value.value<QPointArray>()) );
+    case QVariant::PointF :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QPointF, value.toPointF()) );
+    case QVariant::Polygon :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QPolygon, value.value<QPolygon>()) );
+#if QT_VERSION >= 0x040600
+    case QVariant::Quaternion :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QQuaternion, value.value<QQuaternion>()) );
+#endif
+    case QVariant::Rect :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QRect, value.toRect()) );
+    case QVariant::RectF :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QRectF, value.toRectF()) );
+    case QVariant::RegExp :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QRegExp, value.toRegExp()) );
+    case QVariant::Region :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QRegion, value.value<QRegion>()) );
+    case QVariant::Size :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QSize, value.toSize()) );
+    case QVariant::SizeF :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QSizeF, value.toSizeF()) );
+    case QVariant::SizePolicy :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QSizePolicy, value.value<QSizePolicy>()) );
+    case QVariant::String :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QString, value.toString()) );
+    case QVariant::StringList :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QStringList, value.toStringList()) );
+    case QVariant::TextFormat :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QTextFormat, value.value<QTextFormat>()) );
+    case QVariant::TextLength :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QTextLength, value.value<QTextLength>()) );
+    case QVariant::Time :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QTime, value.toTime()) );
+    case QVariant::UInt :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(uint, value.toUInt()) );
+    case QVariant::ULongLong :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(qulonglong, value.toULongLong()) );
+    case QVariant::Url :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QUrl, value.toUrl()) );
+#if QT_VERSION >= 0x040600
+    case QVariant::Vector2D :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QVector2D, value.value<QVector2D>()) );
+    case QVariant::Vector3D :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QVector3D, value.value<QVector3D>()) );
+    case QVariant::Vector4D :
+        return mMethod.invoke( obj, Qt::DirectConnection, Q_ARG(QVector4D, value.value<QVector4D>()) );
+#endif
+    default:
+        return false;
+    }
+}