fixed visibility warning on Fedora

[wxWidgets.git] / include / wx / log.h

diff --git a/include/wx/log.h b/include/wx/log.h
index 992b2c321bc96d4a2b1c184c0cb0b4640aff8002..41a4b86faeabb6038f3a6d152308237d5ee23ee1 100644 (file)
--- a/include/wx/log.h
+++ b/include/wx/log.h
@@ -70,10 +70,10 @@ typedef unsigned long wxLogLevel;
 // ----------------------------------------------------------------------------
 
 #if wxUSE_GUI
-    class WXDLLIMPEXP_CORE wxTextCtrl;
-    class WXDLLIMPEXP_CORE wxLogFrame;
-    class WXDLLIMPEXP_CORE wxFrame;
-    class WXDLLIMPEXP_CORE wxWindow;
+    class WXDLLIMPEXP_FWD_CORE wxTextCtrl;
+    class WXDLLIMPEXP_FWD_CORE wxLogFrame;
+    class WXDLLIMPEXP_FWD_CORE wxFrame;
+    class WXDLLIMPEXP_FWD_CORE wxWindow;
 #endif // wxUSE_GUI
 
 // ----------------------------------------------------------------------------
@@ -208,10 +208,13 @@ public:
     // get string trace masks
     static const wxArrayString &GetTraceMasks() { return ms_aTraceMasks; }
 
-    // sets the timestamp string: this is used as strftime() format string
-    // for the log targets which add time stamps to the messages - set it
-    // to NULL to disable time stamping completely.
-    static void SetTimestamp(const wxChar *ts) { ms_timestamp = ts; }
+    // sets the time stamp string format: this is used as strftime() format
+    // string for the log targets which add time stamps to the messages; set
+    // it to empty string to disable time stamping completely.
+    static void SetTimestamp(const wxString& ts) { ms_timestamp = ts; }
+
+    // disable time stamping of log messages
+    static void DisableTimestamp() { SetTimestamp(wxEmptyString); }
 
 
     // accessors
@@ -229,7 +232,7 @@ public:
     static wxLogLevel GetLogLevel() { return ms_logLevel; }
 
     // get the current timestamp format string (may be NULL)
-    static const wxChar *GetTimestamp() { return ms_timestamp; }
+    static const wxString& GetTimestamp() { return ms_timestamp; }
 
 
     // helpers
@@ -279,6 +282,23 @@ protected:
                              time_t WXUNUSED(t)) {}
     virtual void DoLogString(const wchar_t *WXUNUSED(szString),
                              time_t WXUNUSED(t)) {}
+#endif // WXWIN_COMPATIBILITY_2_8
+
+    // this macro should be used in the derived classes to avoid warnings about
+    // hiding the other DoLog() overloads when overriding DoLog(wxString) --
+    // but don't use it with MSVC which doesn't give this warning but does give
+    // warning when a deprecated function is overridden
+#if WXWIN_COMPATIBILITY_2_8 && !defined(__VISUALC__)
+    #define wxSUPPRESS_DOLOG_HIDE_WARNING()                                   \
+        virtual void DoLog(wxLogLevel, const char *, time_t) { }              \
+        virtual void DoLog(wxLogLevel, const wchar_t *, time_t) { }
+
+    #define wxSUPPRESS_DOLOGSTRING_HIDE_WARNING()                             \
+        virtual void DoLogString(const char *, time_t) { }                    \
+        virtual void DoLogString(const wchar_t *, time_t) { }
+#else
+    #define wxSUPPRESS_DOLOG_HIDE_WARNING()
+    #define wxSUPPRESS_DOLOGSTRING_HIDE_WARNING()
 #endif
 
     // log a line containing the number of times the previous message was
@@ -309,7 +329,7 @@ private:
 
     // format string for strftime(), if NULL, time stamping log messages is
     // disabled
-    static const wxChar *ms_timestamp;
+    static wxString    ms_timestamp;
 
     static wxTraceMask ms_ulTraceMask;   // controls wxLogTrace behaviour
     static wxArrayString ms_aTraceMasks; // more powerful filter for wxLogTrace
@@ -336,6 +356,9 @@ protected:
     virtual void DoLog(wxLogLevel level, const wxString& szString, time_t t);
     virtual void DoLogString(const wxString& szString, time_t t);
 
+    wxSUPPRESS_DOLOG_HIDE_WARNING()
+    wxSUPPRESS_DOLOGSTRING_HIDE_WARNING()
+
 private:
     wxString m_str;
 
@@ -354,6 +377,8 @@ protected:
     // implement sink function
     virtual void DoLogString(const wxString& szString, time_t t);
 
+    wxSUPPRESS_DOLOGSTRING_HIDE_WARNING()
+
     FILE *m_fp;
 
     DECLARE_NO_COPY_CLASS(wxLogStderr)
@@ -372,6 +397,8 @@ protected:
     // implement sink function
     virtual void DoLogString(const wxString& szString, time_t t);
 
+    wxSUPPRESS_DOLOGSTRING_HIDE_WARNING()
+
     // using ptr here to avoid including <iostream.h> from this file
     wxSTD ostream *m_ostr;
 };
@@ -439,10 +466,15 @@ public:
     // override base class version to flush the old logger as well
     virtual void Flush();
 
+    // call to avoid destroying the old log target
+    void DetachOldLog() { m_logOld = NULL; }
+
 protected:
     // pass the chain to the old logger if needed
     virtual void DoLog(wxLogLevel level, const wxString& szString, time_t t);
 
+    wxSUPPRESS_DOLOG_HIDE_WARNING()
+
 private:
     // the current log target
     wxLog *m_logNew;
@@ -457,13 +489,28 @@ private:
 };
 
 // a chain log target which uses itself as the new logger
-class WXDLLIMPEXP_BASE wxLogPassThrough : public wxLogChain
+
+#define wxLogPassThrough wxLogInterposer
+
+class WXDLLIMPEXP_BASE wxLogInterposer : public wxLogChain
+{
+public:
+    wxLogInterposer();
+
+private:
+    DECLARE_NO_COPY_CLASS(wxLogInterposer)
+};
+
+// a temporary interposer which doesn't destroy the old log target
+// (calls DetachOldLog)
+
+class WXDLLIMPEXP_BASE wxLogInterposerTemp : public wxLogChain
 {
 public:
-    wxLogPassThrough();
+    wxLogInterposerTemp();
 
 private:
-    DECLARE_NO_COPY_CLASS(wxLogPassThrough)
+    DECLARE_NO_COPY_CLASS(wxLogInterposerTemp)
 };
 
 #if wxUSE_GUI
@@ -637,7 +684,7 @@ DECLARE_LOG_FUNCTION(Status);
 
 #if wxUSE_GUI
     // this one is the same as previous except that it allows to explicitly
-    class WXDLLEXPORT wxFrame;
+    class WXDLLIMPEXP_FWD_CORE wxFrame;
     // specify the frame to which the output should go
     DECLARE_LOG_FUNCTION2_EXP(Status, wxFrame *, pFrame, WXDLLIMPEXP_CORE);
 #endif // wxUSE_GUI