fix - File name pattern editor 'Clear' and 'Reset' behavior (configuration window)

(cherry picked from commit 116c807f166841e1ba2745e32ae1ef5fd7f25276)

src/utils/confighandler.cpp

@@ -238,9 +238,19 @@ void ConfigHandler::setDesktopNotification(const bool showDesktopNotification)
                         showDesktopNotification);
 }
 
+QString ConfigHandler::filenamePatternDefault()
+{
+    m_strRes = QLatin1String("%F_%H-%M");
+    return m_strRes;
+}
+
 QString ConfigHandler::filenamePatternValue()
 {
-    return m_settings.value(QStringLiteral("filenamePattern")).toString();
+    m_strRes = m_settings.value(QStringLiteral("filenamePattern")).toString();
+    if (m_strRes.isEmpty()) {
+        m_strRes = filenamePatternDefault();
+    }
+    return m_strRes;
 }
 
 void ConfigHandler::setFilenamePattern(const QString& pattern)

src/utils/confighandler.h

@@ -43,6 +43,7 @@ public:
     bool desktopNotificationValue();
     void setDesktopNotification(const bool);
 
+    QString filenamePatternDefault();
     QString filenamePatternValue();
     void setFilenamePattern(const QString&);
 

src/utils/filenamehandler.cpp

@@ -33,16 +33,17 @@ QString FileNameHandler::parsedPattern()
 QString FileNameHandler::parseFilename(const QString& name)
 {
     QString res = name;
-    // remove trailing characters '%' in the pattern
     if (name.isEmpty()) {
-        res = QLatin1String("%F_%H-%M");
+        res = ConfigHandler().filenamePatternDefault();
     }
+
+    // remove trailing characters '%' in the pattern
     while (res.endsWith('%')) {
         res.chop(1);
     }
     std::time_t t = std::time(NULL);
 
-    char* tempData = QStringTocharArr(res);
+    char* tempData = QStringToCharArr(res);
     char data[MAX_CHARACTERS] = { 0 };
     std::strftime(data, sizeof(data), tempData, std::localtime(&t));
     res = QString::fromLocal8Bit(data, (int)strlen(data));
@@ -92,7 +93,7 @@ QString FileNameHandler::charArrToQString(const char* c)
     return QString::fromLocal8Bit(c, MAX_CHARACTERS);
 }
 
-char* FileNameHandler::QStringTocharArr(const QString& s)
+char* FileNameHandler::QStringToCharArr(const QString& s)
 {
     QByteArray ba = s.toLocal8Bit();
     return const_cast<char*>(strdup(ba.constData()));

src/utils/filenamehandler.h

@@ -25,7 +25,7 @@ public slots:
 private:
     // using charArr = char[MAX_CHARACTERS];
     QString charArrToQString(const char* c);
-    char* QStringTocharArr(const QString& s);
+    char* QStringToCharArr(const QString& s);
 
     void fixPath(QString& directory, QString& filename);
 };