X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/18da7cf2922954ae6534821bec658c51fd200b21..5953e7c7d67c212f3513de0d660888c5668441ea:/include/wx/log.h diff --git a/include/wx/log.h b/include/wx/log.h index a2670f451d..83ea99678e 100644 --- a/include/wx/log.h +++ b/include/wx/log.h @@ -12,31 +12,31 @@ #ifndef _WX_LOG_H_ #define _WX_LOG_H_ -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma interface "log.h" -#endif - #include "wx/defs.h" -#if wxUSE_LOG - -#include "wx/string.h" -#include "wx/arrstr.h" - // ---------------------------------------------------------------------------- -// forward declarations +// common constants for use in wxUSE_LOG/!wxUSE_LOG // ---------------------------------------------------------------------------- -#if wxUSE_GUI - class WXDLLIMPEXP_CORE wxTextCtrl; - class WXDLLIMPEXP_CORE wxLogFrame; - class WXDLLIMPEXP_CORE wxFrame; -#endif // wxUSE_GUI +// the trace masks have been superceded by symbolic trace constants, they're +// for compatibility only andwill be removed soon - do NOT use them + +// meaning of different bits of the trace mask (which allows selectively +// enable/disable some trace messages) +#define wxTraceMemAlloc 0x0001 // trace memory allocation (new/delete) +#define wxTraceMessages 0x0002 // trace window messages/X callbacks +#define wxTraceResAlloc 0x0004 // trace GDI resource allocation +#define wxTraceRefCount 0x0008 // trace various ref counting operations + +#ifdef __WXMSW__ + #define wxTraceOleCalls 0x0100 // OLE interface calls +#endif // ---------------------------------------------------------------------------- // types // ---------------------------------------------------------------------------- +// NB: these types are needed even if wxUSE_LOG == 0 typedef unsigned long wxTraceMask; typedef unsigned long wxLogLevel; @@ -44,9 +44,18 @@ typedef unsigned long wxLogLevel; // headers // ---------------------------------------------------------------------------- +#include "wx/string.h" +#include "wx/strvararg.h" + +#if wxUSE_LOG + +#include "wx/arrstr.h" + +#ifndef __WXPALMOS5__ #ifndef __WXWINCE__ -#include // for time_t + #include // for time_t #endif +#endif // ! __WXPALMOS5__ #include "wx/dynarray.h" @@ -58,12 +67,23 @@ typedef unsigned long wxLogLevel; # endif #endif +// ---------------------------------------------------------------------------- +// forward declarations +// ---------------------------------------------------------------------------- + +#if wxUSE_GUI + class WXDLLIMPEXP_FWD_CORE wxTextCtrl; + class WXDLLIMPEXP_FWD_CORE wxLogFrame; + class WXDLLIMPEXP_FWD_CORE wxFrame; + class WXDLLIMPEXP_FWD_CORE wxWindow; +#endif // wxUSE_GUI + // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- // different standard log levels (you may also define your own) -enum +enum wxLogLevelValues { wxLOG_FatalError, // program can't continue, abort immediately wxLOG_Error, // a serious error, user must be informed about it @@ -91,20 +111,6 @@ enum #define wxTRACE_OleCalls wxT("ole") // OLE interface calls #endif -// the trace masks have been superceded by symbolic trace constants, they're -// for compatibility only andwill be removed soon - do NOT use them - -// meaning of different bits of the trace mask (which allows selectively -// enable/disable some trace messages) -#define wxTraceMemAlloc 0x0001 // trace memory allocation (new/delete) -#define wxTraceMessages 0x0002 // trace window messages/X callbacks -#define wxTraceResAlloc 0x0004 // trace GDI resource allocation -#define wxTraceRefCount 0x0008 // trace various ref counting operations - -#ifdef __WXMSW__ - #define wxTraceOleCalls 0x0100 // OLE interface calls -#endif - #include "wx/iosfwrap.h" // ---------------------------------------------------------------------------- @@ -116,39 +122,29 @@ class WXDLLIMPEXP_BASE wxLog { public: // ctor - wxLog(); - - // Internal buffer. - // Allow replacement of the fixed size static buffer with - // a user allocated one. Pass in NULL to restore the - // built in static buffer. - static wxChar *SetLogBuffer( wxChar *buf, size_t size = 0 ); + wxLog(){} // these functions allow to completely disable all log messages - // is logging disabled now? + + // is logging disabled now? static bool IsEnabled() { return ms_doLog; } - // change the flag state, return the previous one - static bool EnableLogging(bool doIt = TRUE) + + // change the flag state, return the previous one + static bool EnableLogging(bool doIt = true) { bool doLogOld = ms_doLog; ms_doLog = doIt; return doLogOld; } // static sink function - see DoLog() for function to overload in the // derived classes - static void OnLog(wxLogLevel level, const wxChar *szString, time_t t) - { - if ( IsEnabled() && ms_logLevel >= level ) { - wxLog *pLogger = GetActiveTarget(); - if ( pLogger ) - pLogger->DoLog(level, szString, t); - } - } + static void OnLog(wxLogLevel level, const wxString& szString, time_t t); // message buffering - // flush shows all messages if they're not logged immediately (FILE - // and iostream logs don't need it, but wxGuiLog does to avoid showing - // 17 modal dialogs one after another) + + // flush shows all messages if they're not logged immediately (FILE + // and iostream logs don't need it, but wxGuiLog does to avoid showing + // 17 modal dialogs one after another) virtual void Flush(); - // flush the active target if any + // flush the active target if any static void FlushActive() { if ( !ms_suspendCount ) @@ -160,92 +156,179 @@ public: } // only one sink is active at each moment - // get current log target, will call wxApp::CreateLogTarget() to - // create one if none exists + // get current log target, will call wxApp::CreateLogTarget() to + // create one if none exists static wxLog *GetActiveTarget(); - // change log target, pLogger may be NULL + + // change log target, pLogger may be NULL static wxLog *SetActiveTarget(wxLog *pLogger); - // suspend the message flushing of the main target until the next call - // to Resume() - this is mainly for internal use (to prevent wxYield() - // from flashing the messages) + // suspend the message flushing of the main target until the next call + // to Resume() - this is mainly for internal use (to prevent wxYield() + // from flashing the messages) static void Suspend() { ms_suspendCount++; } - // must be called for each Suspend()! + + // must be called for each Suspend()! static void Resume() { ms_suspendCount--; } // functions controlling the default wxLog behaviour - // verbose mode is activated by standard command-line '-verbose' - // option - static void SetVerbose(bool bVerbose = TRUE) { ms_bVerbose = bVerbose; } + // verbose mode is activated by standard command-line '-verbose' + // option + static void SetVerbose(bool bVerbose = true) { ms_bVerbose = bVerbose; } - // Set log level. Log messages with level > logLevel will not be logged. + // Set log level. Log messages with level > logLevel will not be logged. static void SetLogLevel(wxLogLevel logLevel) { ms_logLevel = logLevel; } - // should GetActiveTarget() try to create a new log object if the - // current is NULL? + // should GetActiveTarget() try to create a new log object if the + // current is NULL? static void DontCreateOnDemand(); - // trace mask (see wxTraceXXX constants for details) + // Make GetActiveTarget() create a new log object again. + static void DoCreateOnDemand(); + + // log the count of repeating messages instead of logging the messages + // multiple times + static void SetRepetitionCounting(bool bRepetCounting = true) + { ms_bRepetCounting = bRepetCounting; } + + // gets duplicate counting status + static bool GetRepetitionCounting() { return ms_bRepetCounting; } + + // trace mask (see wxTraceXXX constants for details) static void SetTraceMask(wxTraceMask ulMask) { ms_ulTraceMask = ulMask; } - // add string trace mask - static void AddTraceMask(const wxString& str) - { ms_aTraceMasks.push_back(str); } - // add string trace mask + + // add string trace mask + static void AddTraceMask(const wxString& str); + + // add string trace mask static void RemoveTraceMask(const wxString& str); - // remove all string trace masks + + // remove all string trace masks static void ClearTraceMasks(); - // 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; } + // 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 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 - // gets the verbose status + + // gets the verbose status static bool GetVerbose() { return ms_bVerbose; } - // get trace mask + + // get trace mask static wxTraceMask GetTraceMask() { return ms_ulTraceMask; } - // is this trace mask in the list? - static bool IsAllowedTraceMask(const wxChar *mask); - // return the current loglevel limit + + // is this trace mask in the list? + 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; } + // get the current timestamp format string (may be NULL) + static const wxString& GetTimestamp() { return ms_timestamp; } // helpers - // put the time stamp into the string if ms_timestamp != NULL (don't - // change it otherwise) + + // put the time stamp into the string if ms_timestamp != NULL (don't + // change it otherwise) static void TimeStamp(wxString *str); // make dtor virtual for all derived classes - virtual ~wxLog() { } + virtual ~wxLog(); // this method exists for backwards compatibility only, don't use - bool HasPendingMessages() const { return TRUE; } + bool HasPendingMessages() const { return true; } + +#if WXWIN_COMPATIBILITY_2_6 + // this function doesn't do anything any more, don't call it + wxDEPRECATED( static wxChar *SetLogBuffer(wxChar *buf, size_t size = 0) ); +#endif protected: // the logging functions that can be overriden - // 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); - // 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); + + // 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 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 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 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 // ---------------- + // 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 + 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 + static wxLog *ms_pLogger; // currently active log sink - static bool ms_doLog; // FALSE => all logging disabled + static bool ms_doLog; // false => all logging disabled static bool ms_bAutoCreate; // create new log targets on demand? - static bool ms_bVerbose; // FALSE => ignore LogInfo messages + static bool ms_bVerbose; // false => ignore LogInfo messages static wxLogLevel ms_logLevel; // limit logging to levels <= ms_logLevel @@ -253,7 +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 @@ -263,20 +346,49 @@ private: // "trivial" derivations of wxLog // ---------------------------------------------------------------------------- +// log everything to a buffer +class WXDLLIMPEXP_BASE wxLogBuffer : public wxLog +{ +public: + wxLogBuffer() { } + + // get the string contents with all messages logged + const wxString& GetBuffer() const { return m_str; } + + // show the buffer contents to the user in the best possible way (this uses + // wxMessageOutputMessageBox) and clear it + virtual void Flush(); + +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; + + DECLARE_NO_COPY_CLASS(wxLogBuffer) +}; + + // log everything to a "FILE *", stderr by default class WXDLLIMPEXP_BASE wxLogStderr : public wxLog { - DECLARE_NO_COPY_CLASS(wxLogStderr) - public: // redirect log output to a FILE wxLogStderr(FILE *fp = (FILE *) NULL); 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; + + DECLARE_NO_COPY_CLASS(wxLogStderr) }; #if wxUSE_STD_IOSTREAM @@ -290,7 +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; @@ -321,7 +435,7 @@ protected: class WXDLLIMPEXP_BASE wxLogNull { public: - wxLogNull() : m_flagOld(wxLog::EnableLogging(FALSE)) { } + wxLogNull() : m_flagOld(wxLog::EnableLogging(false)) { } ~wxLogNull() { (void)wxLog::EnableLogging(m_flagOld); } private: @@ -359,9 +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 @@ -377,13 +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: + 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 @@ -415,29 +549,111 @@ WXDLLIMPEXP_BASE const wxChar* wxSysErrorMsg(unsigned long nErrCode = 0); // ---------------------------------------------------------------------------- #define DECLARE_LOG_FUNCTION(level) \ -extern void WXDLLIMPEXP_BASE wxVLog##level(const wxChar *szFormat, \ - va_list argptr); \ -extern void WXDLLIMPEXP_BASE wxLog##level(const wxChar *szFormat, \ - ...) ATTRIBUTE_PRINTF_1 -#define DECLARE_LOG_FUNCTION2_EXP(level, arg, expdecl) \ -extern void expdecl wxVLog##level(arg, const wxChar *szFormat, \ - va_list argptr); \ -extern void expdecl wxLog##level(arg, const wxChar *szFormat, \ - ...) ATTRIBUTE_PRINTF_2 -#define DECLARE_LOG_FUNCTION2(level, arg) \ - DECLARE_LOG_FUNCTION2_EXP(level, arg, WXDLLIMPEXP_BASE) + extern void WXDLLIMPEXP_BASE \ + wxDoLog##level##Wchar(const wxChar *format, ...); \ + extern void WXDLLIMPEXP_BASE \ + wxDoLog##level##Utf8(const char *format, ...); \ + WX_DEFINE_VARARG_FUNC_VOID(wxLog##level, \ + 1, (const wxFormatString&), \ + wxDoLog##level##Wchar, wxDoLog##level##Utf8) \ + DECLARE_LOG_FUNCTION_WATCOM(level) \ + extern void WXDLLIMPEXP_BASE wxVLog##level(const wxString& format, \ + va_list argptr) + +#ifdef __WATCOMC__ + // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351; + // can't use WX_WATCOM_ONLY_CODE here because the macro would expand to + // something too big for Borland C++ to handle + #define DECLARE_LOG_FUNCTION_WATCOM(level) \ + WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level, \ + 1, (const wxString&), \ + (wxFormatString(f1))) \ + WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level, \ + 1, (const wxCStrData&), \ + (wxFormatString(f1))) \ + WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level, \ + 1, (const char*), \ + (wxFormatString(f1))) \ + WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level, \ + 1, (const wchar_t*), \ + (wxFormatString(f1))) +#else + #define DECLARE_LOG_FUNCTION_WATCOM(level) +#endif + + +#define DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, expdecl) \ + extern void expdecl wxDoLog##level##Wchar(argclass arg, \ + const wxChar *format, ...); \ + extern void expdecl wxDoLog##level##Utf8(argclass arg, \ + const char *format, ...); \ + WX_DEFINE_VARARG_FUNC_VOID(wxLog##level, \ + 2, (argclass, const wxFormatString&), \ + wxDoLog##level##Wchar, wxDoLog##level##Utf8) \ + DECLARE_LOG_FUNCTION2_EXP_WATCOM(level, argclass, arg, expdecl) \ + extern void expdecl wxVLog##level(argclass arg, \ + const wxString& format, \ + va_list argptr) + +#ifdef __WATCOMC__ + // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351; + // can't use WX_WATCOM_ONLY_CODE here because the macro would expand to + // something too big for Borland C++ to handle + #define DECLARE_LOG_FUNCTION2_EXP_WATCOM(level, argclass, arg, expdecl) \ + WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level, \ + 2, (argclass, const wxString&), \ + (f1, wxFormatString(f2))) \ + WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level, \ + 2, (argclass, const wxCStrData&), \ + (f1, wxFormatString(f2))) \ + WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level, \ + 2, (argclass, const char*), \ + (f1, wxFormatString(f2))) \ + WX_VARARG_WATCOM_WORKAROUND(void, wxLog##level, \ + 2, (argclass, const wchar_t*), \ + (f1, wxFormatString(f2))) +#else + #define DECLARE_LOG_FUNCTION2_EXP_WATCOM(level, argclass, arg, expdecl) +#endif + #else // !wxUSE_LOG +#ifdef __WATCOMC__ + // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351 + #define WX_WATCOM_ONLY_CODE( x ) x +#else + #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) \ -inline void wxVLog##level(const wxChar *szFormat, \ - va_list argptr) { } \ -inline void wxLog##level(const wxChar *szFormat, ...) { } -#define DECLARE_LOG_FUNCTION2(level, arg) \ -inline void wxVLog##level(arg, const wxChar *szFormat, \ - va_list argptr) {} \ -inline void wxLog##level(arg, const wxChar *szFormat, ...) { } + WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 1, (const wxString&)) \ + WX_WATCOM_ONLY_CODE( \ + WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 1, (const char*)) \ + WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 1, (const wchar_t*)) \ + WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 1, (const wxCStrData&)) \ + ) \ + inline void wxVLog##level(const wxString& WXUNUSED(format), \ + va_list WXUNUSED(argptr)) { } \ + +#define DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, expdecl) \ + WX_DEFINE_VARARG_FUNC_NOP(wxLog##level, 2, (argclass, const wxString&)) \ + 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&)) \ + ) \ + inline void wxVLog##level(argclass WXUNUSED(arg), \ + const wxString& WXUNUSED(format), \ + va_list WXUNUSED(argptr)) {} // Empty Class to fake wxLogNull class WXDLLIMPEXP_BASE wxLogNull @@ -455,8 +671,18 @@ public: #endif // wxUSE_LOG/!wxUSE_LOG +#define DECLARE_LOG_FUNCTION2(level, argclass, arg) \ + DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, WXDLLIMPEXP_BASE) + +// VC6 produces a warning if we a macro expanding to nothing to +// DECLARE_LOG_FUNCTION2: +#if defined(__VISUALC__) && __VISUALC__ < 1300 + // "not enough actual parameters for macro 'DECLARE_LOG_FUNCTION2_EXP'" + #pragma warning(disable:4003) +#endif + // a generic function for all levels (level is passes as parameter) -DECLARE_LOG_FUNCTION2(Generic, wxLogLevel level); +DECLARE_LOG_FUNCTION2(Generic, wxLogLevel, level); // one function per each level DECLARE_LOG_FUNCTION(FatalError); @@ -472,8 +698,9 @@ DECLARE_LOG_FUNCTION(Status); #if wxUSE_GUI // this one is the same as previous except that it allows to explicitly + class WXDLLIMPEXP_FWD_CORE wxFrame; // specify the frame to which the output should go - DECLARE_LOG_FUNCTION2_EXP(Status, wxFrame *pFrame, WXDLLIMPEXP_CORE); + DECLARE_LOG_FUNCTION2_EXP(Status, wxFrame *, pFrame, WXDLLIMPEXP_CORE); #endif // wxUSE_GUI // additional one: as wxLogError, but also logs last system call error code @@ -482,35 +709,84 @@ DECLARE_LOG_FUNCTION(SysError); // and another one which also takes the error code (for those broken APIs // that don't set the errno (like registry APIs in Win32)) -DECLARE_LOG_FUNCTION2(SysError, long lErrCode); +DECLARE_LOG_FUNCTION2(SysError, long, lErrCode); +#ifdef __WATCOMC__ +// workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351 +DECLARE_LOG_FUNCTION2(SysError, unsigned long, lErrCode); +#endif // debug functions do nothing in release mode -#if wxUSE_LOG_DEBUG +#if wxUSE_LOG && wxUSE_LOG_DEBUG DECLARE_LOG_FUNCTION(Debug); - // first kind of LogTrace is unconditional: it doesn't check the level, - DECLARE_LOG_FUNCTION(Trace); - - // this second version will only log the message if the mask had been - // added to the list of masks with AddTraceMask() - DECLARE_LOG_FUNCTION2(Trace, const wxChar *mask); + // there is no more unconditional LogTrace: it is not different from + // LogDebug and it creates overload ambiguities + //DECLARE_LOG_FUNCTION(Trace); + + // this version only logs the message if the mask had been added to the + // list of masks with AddTraceMask() + DECLARE_LOG_FUNCTION2(Trace, const wxString&, mask); +#ifdef __WATCOMC__ + // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351 + DECLARE_LOG_FUNCTION2(Trace, const char*, mask); + DECLARE_LOG_FUNCTION2(Trace, const wchar_t*, mask); +#endif - // the last one does nothing if all of level bits are not set - // in wxLog::GetActive()->GetTraceMask() - it's deprecated in favour of + // and this one does nothing if all of level bits are not set in + // wxLog::GetActive()->GetTraceMask() -- it's deprecated in favour of // string identifiers - DECLARE_LOG_FUNCTION2(Trace, wxTraceMask mask); -#else //!debug - // these functions do nothing in release builds - inline void wxVLogDebug(const wxChar *, va_list) { } - inline void wxLogDebug(const wxChar *, ...) { } - inline void wxVLogTrace(const wxChar *, va_list) { } - inline void wxLogTrace(const wxChar *, ...) { } - inline void wxVLogTrace(wxTraceMask, const wxChar *, va_list) { } - inline void wxLogTrace(wxTraceMask, const wxChar *, ...) { } - inline void wxVLogTrace(const wxChar *, const wxChar *, va_list) { } - inline void wxLogTrace(const wxChar *, const wxChar *, ...) { } + DECLARE_LOG_FUNCTION2(Trace, wxTraceMask, mask); +#ifdef __WATCOMC__ + // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351 + DECLARE_LOG_FUNCTION2(Trace, int, mask); +#endif +#else //!debug || !wxUSE_LOG + // these functions do nothing in release builds, but don't define them as + // nothing as it could result in different code structure in debug and + // release and this could result in trouble when these macros are used + // inside if/else + // + // note that making wxVLogDebug/Trace() themselves (empty inline) functions + // is a bad idea as some compilers are stupid enough to not inline even + // 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() + + #ifdef HAVE_VARIADIC_MACROS + // unlike the inline functions below, this completely removes the + // wxLogXXX calls from the object file: + #define wxLogDebug(fmt, ...) wxLogNop() + #define wxLogTrace(mask, fmt, ...) wxLogNop() + #else // !HAVE_VARIADIC_MACROS + //inline void wxLogDebug(const wxString& fmt, ...) {} + WX_DEFINE_VARARG_FUNC_NOP(wxLogDebug, 1, (const wxString&)) + //inline void wxLogTrace(wxTraceMask, const wxString& fmt, ...) {} + //inline void wxLogTrace(const wxString&, const wxString& fmt, ...) {} + WX_DEFINE_VARARG_FUNC_NOP(wxLogTrace, 2, (wxTraceMask, const wxString&)) + WX_DEFINE_VARARG_FUNC_NOP(wxLogTrace, 2, (const wxString&, const wxString&)) + #ifdef __WATCOMC__ + // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351 + WX_DEFINE_VARARG_FUNC_NOP(wxLogTrace, 2, (const char*, const char*)) + WX_DEFINE_VARARG_FUNC_NOP(wxLogTrace, 2, (const wchar_t*, const wchar_t*)) + #endif + #endif // HAVE_VARIADIC_MACROS/!HAVE_VARIADIC_MACROS #endif // debug/!debug +#if defined(__VISUALC__) && __VISUALC__ < 1300 + #pragma warning(default:4003) +#endif + // wxLogFatalError helper: show the (fatal) error to the user in a safe way, // i.e. without using wxMessageBox() for example because it could crash void WXDLLIMPEXP_BASE @@ -526,22 +802,31 @@ wxSafeShowMessage(const wxString& title, const wxString& text); #ifdef __VISUALC__ #define wxLogApiError(api, rc) \ wxLogDebug(wxT("%s(%d): '%s' failed with error 0x%08lx (%s)."), \ - __TFILE__, __LINE__, api, \ + __FILE__, __LINE__, api, \ (long)rc, wxSysErrorMsg(rc)) #else // !VC++ #define wxLogApiError(api, rc) \ wxLogDebug(wxT("In file %s at line %d: '%s' failed with ") \ wxT("error 0x%08lx (%s)."), \ - __TFILE__, __LINE__, api, \ + __FILE__, __LINE__, api, \ (long)rc, wxSysErrorMsg(rc)) #endif // VC++/!VC++ #define wxLogLastError(api) wxLogApiError(api, wxSysErrorCode()) #else //!debug - inline void wxLogApiError(const wxChar *, long) { } - inline void wxLogLastError(const wxChar *) { } + #define wxLogApiError(api, err) wxLogNop() + #define wxLogLastError(api) wxLogNop() #endif //debug/!debug +// wxCocoa has additiional trace masks +#if defined(__WXCOCOA__) +#include "wx/cocoa/log.h" +#endif + +#ifdef WX_WATCOM_ONLY_CODE + #undef WX_WATCOM_ONLY_CODE +#endif + #endif // _WX_LOG_H_