Modify LogManager::qtLogger. Add Qt category paramter. QLoggingCategory can use adapters based on category.

Author: KangLin

src/log4qt/helpers/patternformatter.cpp

@@ -664,14 +664,7 @@ QString LoggepatternConverter::convert(const LoggingEvent &loggingEvent) const
     if (!loggingEvent.logger())
         return QString();
     QString name;
-
-    if (loggingEvent.logger() == LogManager::instance()->qtLogger())   // is qt logger
-        if (loggingEvent.categoryName().isEmpty())
-            name = LogManager::instance()->qtLogger()->name();
-        else
-            name = loggingEvent.categoryName();
-    else
-        name = loggingEvent.logger()->name();
+    name = loggingEvent.logger()->name();
 
     if (mPrecision <= 0 || (name.isEmpty()))
         return name;

src/log4qt/logmanager.cpp

@@ -422,13 +422,19 @@ void LogManager::qtMessageHandler(QtMsgType type, const QMessageLogContext &cont
     default:
         level = Level::TRACE_INT;
     }
-    LoggingEvent loggingEvent = LoggingEvent(instance()->qtLogger(),
+
+    QString categoryName = QStringLiteral("Qt::");
+    if(context.category)
+        categoryName += context.category;
+    categoryName = OptionConverter::classNameJavaToCpp(categoryName);
+    Logger* logger = instance()->qtLogger(categoryName);
+    LoggingEvent loggingEvent = LoggingEvent(logger,
                                              level,
                                              message,
                                              MessageContext(context.file, context.line, context.function),
-                                             QStringLiteral("Qt ") % context.category);
+                                             categoryName);
 
-    instance()->qtLogger()->log(loggingEvent);
+    instance()->qtLogger(categoryName)->log(loggingEvent);
 
 
     // Qt fatal behaviour copied from global.cpp qt_message_output()
@@ -440,6 +446,7 @@ void LogManager::qtMessageHandler(QtMsgType type, const QMessageLogContext &cont
     // } end
 }
 
+
 #ifdef Q_OS_WIN
 static inline void convert_to_wchar_t_elided(wchar_t *d, size_t space, const char *s) Q_DECL_NOEXCEPT
 {

src/log4qt/logmanager.h

@@ -116,7 +116,7 @@ class LOG4QT_EXPORT LogManager
      *
      * \sa setHandleQtMessages()
      */
-    static Logger *qtLogger();
+    static Logger *qtLogger(const QString& category = QStringLiteral("Qt"));
 
     static Logger *rootLogger();
     static QList<Logger *> loggers();
@@ -333,9 +333,9 @@ inline Logger *LogManager::logLogger()
     return logger(QStringLiteral("Log4Qt"));
 }
 
-inline Logger *LogManager::qtLogger()
+inline Logger *LogManager::qtLogger(const QString &category)
 {
-    return logger(QStringLiteral("Qt"));
+    return logger(category);
 }
 
 inline void LogManager::setHandleQtMessages(bool handleQtMessages)