diff base/Debug.h @ 1275:ad2d3e0a8b7c 3.0-integration

Add SVCERR and the ability to silence debug output (giving Sonic Annotator a --quiet mode)

--- a/base/Debug.h	Mon Nov 21 17:08:02 2016 +0000
+++ b/base/Debug.h	Tue Nov 22 16:39:17 2016 +0000
@@ -43,6 +43,7 @@
 
     template <typename T>
     inline SVDebug &operator<<(const T &t) {
+        if (m_silenced) return *this;
         if (m_ok) {
             if (m_eol) {
                 m_stream << m_prefix << " ";
@@ -54,21 +55,56 @@
     }
 
     inline SVDebug &operator<<(QTextStreamFunction) {
+        if (m_silenced) return *this;
         m_stream << std::endl;
         m_eol = true;
         return *this;
     }
 
+    static void silence() { m_silenced = true; }
+    
 private:
     std::fstream m_stream;
     char *m_prefix;
     bool m_ok;
     bool m_eol;
+    static bool m_silenced;
+};
+
+class SVCerr {
+public:
+    SVCerr(SVDebug &d) : m_d(d) { }
+    
+    template <typename T>
+    inline SVCerr &operator<<(const T &t) {
+        if (m_silenced) return *this;
+        m_d << t;
+        cerr << t;
+        return *this;
+    }
+
+    inline SVCerr &operator<<(QTextStreamFunction f) {
+        if (m_silenced) return *this;
+        m_d << f;
+        cerr << std::endl;
+        return *this;
+    }
+
+    static void silence() { m_silenced = true; }
+    
+private:
+    SVDebug &m_d;
+    static bool m_silenced;
 };
 
 extern SVDebug &getSVDebug();
+extern SVCerr &getSVCerr();
 
+// Writes to debug log only
 #define SVDEBUG getSVDebug()
 
+// Writes to both SVDEBUG and cerr
+#define SVCERR getSVCerr()
+
 #endif /* !_DEBUG_H_ */