X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0accd1cfe8f53656e5f11a8900c716c56b412dfa..64b1cea09aac1077469090dc2dac9a139a509833:/include/wx/log.h diff --git a/include/wx/log.h b/include/wx/log.h index 8eb4cf7f3b..83ea99678e 100644 --- a/include/wx/log.h +++ b/include/wx/log.h @@ -51,9 +51,11 @@ typedef unsigned long wxLogLevel; #include "wx/arrstr.h" +#ifndef __WXPALMOS5__ #ifndef __WXWINCE__ #include // for time_t #endif +#endif // ! __WXPALMOS5__ #include "wx/dynarray.h" @@ -70,10 +72,10 @@ 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 // ---------------------------------------------------------------------------- @@ -133,7 +135,7 @@ public: // static sink function - see DoLog() for function to overload in the // derived classes - static void OnLog(wxLogLevel level, const wxChar *szString, time_t t); + static void OnLog(wxLogLevel level, const wxString& szString, time_t t); // message buffering @@ -196,8 +198,7 @@ public: static void SetTraceMask(wxTraceMask ulMask) { ms_ulTraceMask = ulMask; } // add string trace mask - static void AddTraceMask(const wxString& str) - { ms_aTraceMasks.push_back(str); } + static void AddTraceMask(const wxString& str); // add string trace mask static void RemoveTraceMask(const wxString& str); @@ -205,13 +206,17 @@ public: // remove all string trace masks static void ClearTraceMasks(); - // get string trace masks - static const wxArrayString &GetTraceMasks() { return ms_aTraceMasks; } + // get string trace masks: note that this is MT-unsafe if other threads can + // call AddTraceMask() concurrently + 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 @@ -223,13 +228,13 @@ public: static wxTraceMask GetTraceMask() { return ms_ulTraceMask; } // is this trace mask in the list? - static bool IsAllowedTraceMask(const wxChar *mask); + static bool IsAllowedTraceMask(const wxString& mask); // return the current loglevel limit 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 @@ -255,26 +260,68 @@ protected: // default DoLog() prepends the time stamp and a prefix corresponding // to the message to szString and then passes it to DoLogString() - virtual void DoLog(wxLogLevel level, const wxChar *szString, time_t t); + virtual void DoLog(wxLogLevel level, const wxString& szString, time_t t); +#if WXWIN_COMPATIBILITY_2_8 + // these shouldn't be used by new code + wxDEPRECATED_BUT_USED_INTERNALLY( + virtual void DoLog(wxLogLevel level, const char *szString, time_t t) + ); + + wxDEPRECATED_BUT_USED_INTERNALLY( + virtual void DoLog(wxLogLevel level, const wchar_t *wzString, time_t t) + ); +#endif // WXWIN_COMPATIBILITY_2_8 + + void LogString(const wxString& szString, time_t t) + { DoLogString(szString, t); } // default DoLogString does nothing but is not pure virtual because if // you override DoLog() you might not need it at all - virtual void DoLogString(const wxChar *szString, time_t t); + virtual void DoLogString(const wxString& szString, time_t t); +#if WXWIN_COMPATIBILITY_2_8 + // these shouldn't be used by new code + virtual void DoLogString(const char *WXUNUSED(szString), + 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 - // repeated - // returns: the number - static unsigned DoLogNumberOfRepeats(); + // log a message indicating the number of times the previous message was + // repeated if ms_prevCounter > 0, does nothing otherwise; return the old + // value of ms_prevCounter + unsigned LogLastRepeatIfNeeded(); private: + // implement of LogLastRepeatIfNeeded(): it assumes that the + // caller had already locked ms_prevCS + unsigned LogLastRepeatIfNeededUnlocked(); + // static variables // ---------------- - // traditional behaviour or counting repetitions + // if true, don't log the same message multiple times, only log it once + // with the number of times it was repeated static bool ms_bRepetCounting; + static wxString ms_prevString; // previous message that was logged - // how many times the previous message was logged - static unsigned ms_prevCounter; + static unsigned ms_prevCounter; // how many times it was repeated static time_t ms_prevTimeStamp;// timestamp of the previous message static wxLogLevel ms_prevLevel; // level of the previous message @@ -289,7 +336,7 @@ 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 @@ -313,8 +360,11 @@ public: virtual void Flush(); protected: - virtual void DoLog(wxLogLevel level, const wxChar *szString, time_t t); - virtual void DoLogString(const wxChar *szString, time_t t); + 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; @@ -332,7 +382,9 @@ public: protected: // implement sink function - virtual void DoLogString(const wxChar *szString, time_t t); + virtual void DoLogString(const wxString& szString, time_t t); + + wxSUPPRESS_DOLOGSTRING_HIDE_WARNING() FILE *m_fp; @@ -350,7 +402,9 @@ public: protected: // implement sink function - virtual void DoLogString(const wxChar *szString, time_t t); + virtual void DoLogString(const wxString& szString, time_t t); + + wxSUPPRESS_DOLOGSTRING_HIDE_WARNING() // using ptr here to avoid including from this file wxSTD ostream *m_ostr; @@ -419,9 +473,14 @@ 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 wxChar *szString, time_t t); + virtual void DoLog(wxLogLevel level, const wxString& szString, time_t t); + + wxSUPPRESS_DOLOG_HIDE_WARNING() private: // the current log target @@ -437,13 +496,28 @@ 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: - wxLogPassThrough(); + wxLogInterposer(); private: - DECLARE_NO_COPY_CLASS(wxLogPassThrough) + 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: + wxLogInterposerTemp(); + +private: + DECLARE_NO_COPY_CLASS(wxLogInterposerTemp) }; #if wxUSE_GUI @@ -552,6 +626,13 @@ WXDLLIMPEXP_BASE const wxChar* wxSysErrorMsg(unsigned long nErrCode = 0); #define WX_WATCOM_ONLY_CODE( x ) #endif +#if defined(__WATCOMC__) || defined(__MINGW32__) + // Mingw has similar problem with wxLogSysError: + #define WX_WATCOM_OR_MINGW_ONLY_CODE( x ) x +#else + #define WX_WATCOM_OR_MINGW_ONLY_CODE( x ) +#endif + // log functions do nothing at all #define DECLARE_LOG_FUNCTION(level) \ WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 1, (const wxString&)) \ @@ -565,7 +646,7 @@ WXDLLIMPEXP_BASE const wxChar* wxSysErrorMsg(unsigned long nErrCode = 0); #define DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, expdecl) \ WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 2, (argclass, const wxString&)) \ - WX_WATCOM_ONLY_CODE( \ + WX_WATCOM_OR_MINGW_ONLY_CODE( \ WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 2, (argclass, const char*)) \ WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 2, (argclass, const wchar_t*)) \ WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 2, (argclass, const wxCStrData&)) \ @@ -617,7 +698,7 @@ 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 @@ -670,7 +751,14 @@ DECLARE_LOG_FUNCTION2(SysError, unsigned long, lErrCode); // empty functions if their parameters are complicated enough, but by // defining them as an empty inline function we ensure that even dumbest // compilers optimise them away +#ifdef __BORLANDC__ + // but Borland gives "W8019: Code has no effect" for wxLogNop() so we need + // to define it differently for it to avoid these warnings (same problem as + // with wxUnusedVar()) + #define wxLogNop() { } +#else inline void wxLogNop() { } +#endif #define wxVLogDebug(fmt, valist) wxLogNop() #define wxVLogTrace(mask, fmt, valist) wxLogNop()