--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/common/logstream.h	Tue Aug 17 11:19:54 2021 +0200
@@ -0,0 +1,73 @@
+#ifndef _LOGSTREAM_H_
+#define _LOGSTREAM_H_
+
+#ifdef QT_VERSION
+#include <QString>
+#endif
+
+#include "logtypes.h"
+
+#include <common.h>
+
+#include <sstream>
+#include <string>
+#include <iomanip>
+#include <type_traits>
+
+class logstream
+{
+public:
+
+    logstream() = delete;
+    logstream(int line, const char pFile[], const char pFunc[], unafrog::log::LogLevel level);
+
+    virtual ~logstream();
+
+    template<class T>
+    logstream &operator<<(T t)
+    {
+        const bool is_bool = std::is_same<T,bool>::value;
+        std::string out = is_bool?(t ? "true" : "false") : unafrog::utils::to_string(t);
+        mOutputStream << out;
+        return appendSpace();
+    }
+
+    logstream &operator<<(void* t)
+    {
+        mOutputStream << "0x" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << t;
+        return appendSpace();
+    }
+
+    logstream &operator<<(const char* t)
+    {
+        mOutputStream << t;
+        return appendSpace();
+    }
+
+    logstream &operator<<(const std::string& t)
+    {
+        return operator<<(t.c_str());
+    }
+
+#ifdef QT_VERSION
+    logstream &operator<<(const QString& t)
+    {
+        return operator<<(t.toUtf8().constData());
+    }
+#endif
+
+private:
+    logstream &operator=(const logstream &rOther);
+    logstream(const logstream &rOther);
+
+    logstream &appendSpace();
+
+private:
+    std::stringstream mOutputStream;
+    std::string mFile;
+    std::string mFunc;
+    unafrog::log::LogLevel mLevel;
+    int mLine;
+};
+
+#endif  // logstream_H