X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8ca28fb797e2c8b9343abf2f8a62cb1ce248af95..cbeda384e51acb82e13994cb67ac1714669cae10:/include/wx/log.h?ds=inline diff --git a/include/wx/log.h b/include/wx/log.h index b6b3a64592..d948772c24 100644 --- a/include/wx/log.h +++ b/include/wx/log.h @@ -6,61 +6,99 @@ // Created: 29/01/98 // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin -// Licence: wxWindows license +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifndef _WX_LOG_H_ -#define _WX_LOG_H_ +#ifndef _WX_LOG_H_ +#define _WX_LOG_H_ -#ifdef __GNUG__ - #pragma interface "log.h" -#endif - -#include "wx/setup.h" -#include "wx/string.h" - -// ---------------------------------------------------------------------------- -// forward declarations -// ---------------------------------------------------------------------------- - -class WXDLLEXPORT wxTextCtrl; -class WXDLLEXPORT wxLogFrame; -class WXDLLEXPORT wxFrame; +#include "wx/defs.h" // ---------------------------------------------------------------------------- // types // ---------------------------------------------------------------------------- -typedef unsigned long wxTraceMask; +// NB: this is needed even if wxUSE_LOG == 0 typedef unsigned long wxLogLevel; +// the trace masks have been superseded by symbolic trace constants, they're +// for compatibility only and will be removed soon - do NOT use them +#if WXWIN_COMPATIBILITY_2_8 + #define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 + + typedef unsigned long wxTraceMask; +#endif // WXWIN_COMPATIBILITY_2_8 + // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- +#include "wx/string.h" +#include "wx/strvararg.h" + #if wxUSE_LOG -#include // for time_t +#include "wx/arrstr.h" + +#ifndef __WXPALMOS5__ +#ifndef __WXWINCE__ + #include // for time_t +#endif +#endif // ! __WXPALMOS5__ #include "wx/dynarray.h" +// wxUSE_LOG_DEBUG enables the debug log messages +#ifndef wxUSE_LOG_DEBUG + #if wxDEBUG_LEVEL + #define wxUSE_LOG_DEBUG 1 + #else // !wxDEBUG_LEVEL + #define wxUSE_LOG_DEBUG 0 + #endif +#endif + +// wxUSE_LOG_TRACE enables the trace messages, they are disabled by default +#ifndef wxUSE_LOG_TRACE + #if wxDEBUG_LEVEL + #define wxUSE_LOG_TRACE 1 + #else // !wxDEBUG_LEVEL + #define wxUSE_LOG_TRACE 0 + #endif +#endif // wxUSE_LOG_TRACE + +// ---------------------------------------------------------------------------- +// forward declarations +// ---------------------------------------------------------------------------- + +#if wxUSE_GUI + class WXDLLIMPEXP_FWD_CORE wxFrame; +#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 wxLOG_Warning, // user is normally informed about it but may be ignored wxLOG_Message, // normal message (i.e. normal output of a non GUI app) - wxLOG_Info, // informational message (a.k.a. 'Verbose') wxLOG_Status, // informational: might go to the status line of GUI app + wxLOG_Info, // informational message (a.k.a. 'Verbose') wxLOG_Debug, // never shown to the user, disabled in release mode wxLOG_Trace, // trace messages are also only enabled in debug mode wxLOG_Progress, // used for progress indicator (not yet) - wxLOG_User = 100 // user defined levels start here + wxLOG_User = 100, // user defined levels start here + wxLOG_Max = 10000 }; // symbolic trace masks - wxLogTrace("foo", "some trace message...") will be @@ -76,179 +114,309 @@ 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/ioswrap.h" +#include "wx/iosfwrap.h" // ---------------------------------------------------------------------------- // derive from this class to redirect (or suppress, or ...) log messages // normally, only a single instance of this class exists but it's not enforced // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxLog +class WXDLLIMPEXP_BASE wxLog { public: // ctor - wxLog(); + 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() ) { - 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(); - // call to Flush() may be optimized: call it only if this function - // returns true (although Flush() also returns immediately if there is - // no messages, this functions is more efficient because inline) - bool HasPendingMessages() const { return m_bHasMessages; } - // only one sink is active at each moment - // flush the active target if any + // flush the active target if any static void FlushActive() { if ( !ms_suspendCount ) { wxLog *log = GetActiveTarget(); - if ( log && log->HasPendingMessages() ) + if ( log ) log->Flush(); } } - // get current log target, will call wxApp::CreateLogTarget() to - // create one if none exists + + // only one sink is active at each moment + // 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; } - // should GetActiveTarget() try to create a new log object if the - // current is NULL? + // 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. + static void SetLogLevel(wxLogLevel logLevel) { ms_logLevel = logLevel; } + + // should GetActiveTarget() try to create a new log object if the + // current is NULL? static void DontCreateOnDemand(); - // 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.Add(str); } - // add string trace mask + // 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; } + + // 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(); - // 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 - static wxTraceMask GetTraceMask() { return ms_ulTraceMask; } - // is this trace mask in the list? - static bool IsAllowedTraceMask(const wxChar *mask) - { return ms_aTraceMasks.Index(mask) != wxNOT_FOUND; } - // get the current timestamp format string (may be NULL) - static const wxChar *GetTimestamp() { return ms_timestamp; } + // 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 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); + // this method should only be called from derived classes DoLog() + // implementations and shouldn't be called directly, use logging functions + // instead + void Log(wxLogLevel level, const wxString& msg, time_t t) + { + DoLog(level, msg, t); + } + // 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; } + +#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 + + // don't use integer masks any more, use string trace masks instead +#if WXWIN_COMPATIBILITY_2_8 + wxDEPRECATED_INLINE( static void SetTraceMask(wxTraceMask ulMask), + ms_ulTraceMask = ulMask; ) + wxDEPRECATED_BUT_USED_INTERNALLY_INLINE( static wxTraceMask GetTraceMask(), + return ms_ulTraceMask; ) +#endif // WXWIN_COMPATIBILITY_2_8 protected: - bool m_bHasMessages; // any messages in the queue? + // the logging functions that can be overridden + + // 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 - // 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); + // 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 static size_t ms_suspendCount; // if positive, logs are not flushed // format string for strftime(), if NULL, time stamping log messages is // disabled - static const wxChar *ms_timestamp; + static wxString ms_timestamp; +#if WXWIN_COMPATIBILITY_2_8 static wxTraceMask ms_ulTraceMask; // controls wxLogTrace behaviour - static wxArrayString ms_aTraceMasks; // more powerful filter for wxLogTrace +#endif // WXWIN_COMPATIBILITY_2_8 + + // currently enabled trace masks + static wxArrayString ms_aTraceMasks; }; // ---------------------------------------------------------------------------- // "trivial" derivations of wxLog // ---------------------------------------------------------------------------- +// log everything except for the debug/trace messages (which are passed to +// wxMessageOutputDebug) 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: +#if wxUSE_LOG_DEBUG || wxUSE_LOG_TRACE + virtual void DoLog(wxLogLevel level, const wxString& szString, time_t t); + + wxSUPPRESS_DOLOG_HIDE_WARNING() +#endif // wxUSE_LOG_DEBUG || wxUSE_LOG_TRACE + + virtual void DoLogString(const wxString& szString, time_t t); + + wxSUPPRESS_DOLOGSTRING_HIDE_WARNING() + +private: + wxString m_str; + + wxDECLARE_NO_COPY_CLASS(wxLogBuffer); +}; + + // log everything to a "FILE *", stderr by default -class WXDLLEXPORT wxLogStderr : public wxLog +class WXDLLIMPEXP_BASE wxLogStderr : public wxLog { public: // redirect log output to a FILE - wxLogStderr(FILE *fp = (FILE *) NULL); + wxLogStderr(FILE *fp = 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; + + wxDECLARE_NO_COPY_CLASS(wxLogStderr); }; #if wxUSE_STD_IOSTREAM // log everything to an "ostream", cerr by default -class WXDLLEXPORT wxLogStream : public wxLog +class WXDLLIMPEXP_BASE wxLogStream : public wxLog { public: // redirect log output to an ostream @@ -256,7 +424,9 @@ 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; @@ -284,11 +454,11 @@ protected: // ~wxLogNull called, old log sink restored } */ -class WXDLLEXPORT wxLogNull +class WXDLLIMPEXP_BASE wxLogNull { public: - wxLogNull() { m_flagOld = wxLog::EnableLogging(FALSE); } - ~wxLogNull() { (void)wxLog::EnableLogging(m_flagOld); } + wxLogNull() : m_flagOld(wxLog::EnableLogging(false)) { } + ~wxLogNull() { (void)wxLog::EnableLogging(m_flagOld); } private: bool m_flagOld; // the previous value of the wxLog::ms_doLog @@ -303,11 +473,11 @@ private: // does it itself in its ctor // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxLogChain : public wxLog +class WXDLLIMPEXP_BASE wxLogChain : public wxLog { public: wxLogChain(wxLog *logger); - virtual ~wxLogChain() { delete m_logOld; } + virtual ~wxLogChain(); // change the new log target void SetLog(wxLog *logger); @@ -325,9 +495,14 @@ 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 @@ -338,119 +513,38 @@ private: // do we pass the messages to the old logger? bool m_bPassMessages; -}; -// a chain log target which uses itself as the new logger -class WXDLLEXPORT wxLogPassThrough : public wxLogChain -{ -public: - wxLogPassThrough(); + wxDECLARE_NO_COPY_CLASS(wxLogChain); }; -// ---------------------------------------------------------------------------- -// the following log targets are only compiled in if the we're compiling the -// GUI part (andnot just the base one) of the library, they're implemented in -// src/generic/logg.cpp *and not src/common/log.cpp unlike all the rest) -// ---------------------------------------------------------------------------- - -#if wxUSE_GUI +// a chain log target which uses itself as the new logger -#if wxUSE_TEXTCTRL +#define wxLogPassThrough wxLogInterposer -// log everything to a text window (GUI only of course) -class WXDLLEXPORT wxLogTextCtrl : public wxLog +class WXDLLIMPEXP_BASE wxLogInterposer : public wxLogChain { public: - wxLogTextCtrl(wxTextCtrl *pTextCtrl); + wxLogInterposer(); private: - // implement sink function - virtual void DoLogString(const wxChar *szString, time_t t); - - // the control we use - wxTextCtrl *m_pTextCtrl; -}; - -#endif // wxUSE_TEXTCTRL - -// ---------------------------------------------------------------------------- -// GUI log target, the default one for wxWindows programs -// ---------------------------------------------------------------------------- - -#if wxUSE_LOGGUI - -class WXDLLEXPORT wxLogGui : public wxLog -{ -public: - // ctor - wxLogGui(); - - // show all messages that were logged since the last Flush() - virtual void Flush(); - -protected: - virtual void DoLog(wxLogLevel level, const wxChar *szString, time_t t); - - // empty everything - void Clear(); - - wxArrayString m_aMessages; // the log message texts - wxArrayInt m_aSeverity; // one of wxLOG_XXX values - wxArrayLong m_aTimes; // the time of each message - bool m_bErrors, // do we have any errors? - m_bWarnings; // any warnings? + wxDECLARE_NO_COPY_CLASS(wxLogInterposer); }; -#endif // wxUSE_LOGGUI - -// ---------------------------------------------------------------------------- -// (background) log window: this class forwards all log messages to the log -// target which was active when it was instantiated, but also collects them -// to the log window. This window has it's own menu which allows the user to -// close it, clear the log contents or save it to the file. -// ---------------------------------------------------------------------------- - -#if wxUSE_LOGWINDOW +// a temporary interposer which doesn't destroy the old log target +// (calls DetachOldLog) -class WXDLLEXPORT wxLogWindow : public wxLogPassThrough +class WXDLLIMPEXP_BASE wxLogInterposerTemp : public wxLogChain { public: - wxLogWindow(wxFrame *pParent, // the parent frame (can be NULL) - const wxChar *szTitle, // the title of the frame - bool bShow = TRUE, // show window immediately? - bool bPassToOld = TRUE); // pass messages to the old target? - - ~wxLogWindow(); - - // window operations - // show/hide the log window - void Show(bool bShow = TRUE); - // retrieve the pointer to the frame - wxFrame *GetFrame() const; - - // overridables - // called immediately after the log frame creation allowing for - // any extra initializations - virtual void OnFrameCreate(wxFrame *frame); - // called if the user closes the window interactively, will not be - // called if it is destroyed for another reason (such as when program - // exits) - return TRUE from here to allow the frame to close, FALSE - // to prevent this from happening - virtual bool OnFrameClose(wxFrame *frame); - // called right before the log frame is going to be deleted: will - // always be called unlike OnFrameClose() - virtual void OnFrameDelete(wxFrame *frame); - -protected: - virtual void DoLog(wxLogLevel level, const wxChar *szString, time_t t); - virtual void DoLogString(const wxChar *szString, time_t t); + wxLogInterposerTemp(); private: - wxLogFrame *m_pLogFrame; // the log frame + wxDECLARE_NO_COPY_CLASS(wxLogInterposerTemp); }; -#endif // wxUSE_LOGWINDOW - +#if wxUSE_GUI + // include GUI log targets: + #include "wx/generic/logg.h" #endif // wxUSE_GUI // ============================================================================ @@ -467,30 +561,156 @@ private: // ---------------------------------------------------------------------------- // return the last system error code -WXDLLEXPORT unsigned long wxSysErrorCode(); +WXDLLIMPEXP_BASE unsigned long wxSysErrorCode(); + // return the error message for given (or last if 0) error code -WXDLLEXPORT const wxChar* wxSysErrorMsg(unsigned long nErrCode = 0); +WXDLLIMPEXP_BASE const wxChar* wxSysErrorMsg(unsigned long nErrCode = 0); +// ---------------------------------------------------------------------------- // define wxLog -// ------------------- +// ---------------------------------------------------------------------------- + +#define DECLARE_LOG_FUNCTION(level) \ + 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 -#define DECLARE_LOG_FUNCTION(level) \ -extern void WXDLLEXPORT wxLog##level(const wxChar *szFormat, ...) -#define DECLARE_LOG_FUNCTION2(level, arg1) \ -extern void WXDLLEXPORT wxLog##level(arg1, const wxChar *szFormat, ...) #else // !wxUSE_LOG +#undef wxUSE_LOG_DEBUG +#define wxUSE_LOG_DEBUG 0 + +#undef wxUSE_LOG_TRACE +#define wxUSE_LOG_TRACE 0 + +#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 WXDLLEXPORT wxLog##level(const wxChar *szFormat, ...) {} -#define DECLARE_LOG_FUNCTION2(level, arg1) \ -inline void WXDLLEXPORT wxLog##level(arg1, const wxChar *szFormat, ...) {} +#define DECLARE_LOG_FUNCTION(level) \ + 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 +{ +public: + wxLogNull() { } +}; + +// Dummy macros to replace some functions. +#define wxSysErrorCode() (unsigned long)0 +#define wxSysErrorMsg( X ) (const wxChar*)NULL + +// Fake symbolic trace masks... for those that are used frequently +#define wxTRACE_OleCalls wxEmptyString // OLE interface calls #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); @@ -504,9 +724,12 @@ DECLARE_LOG_FUNCTION(Verbose); // application frame, if any DECLARE_LOG_FUNCTION(Status); -// this one is the same as previous except that it allows to explicitly -// specify the frame to which the output should go -DECLARE_LOG_FUNCTION2(Status, wxFrame *pFrame); +#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); +#endif // wxUSE_GUI // additional one: as wxLogError, but also logs last system call error code // and the corresponding error message if available @@ -514,61 +737,130 @@ 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 -#ifdef __WXDEBUG__ - DECLARE_LOG_FUNCTION(Debug); - // first king of LogTrace is uncoditional: it doesn't check the level, - DECLARE_LOG_FUNCTION(Trace); +// debug functions can be completely disabled in optimized builds - // 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); +// if these log functions are disabled, we prefer to define them as (empty) +// variadic macros as this completely removes them and their argument +// evaluation from the object code but if this is not supported by compiler we +// use empty inline functions instead (defining them as nothing would result in +// compiler warnings) +// +// 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 + +#if wxUSE_LOG_DEBUG + DECLARE_LOG_FUNCTION(Debug); +#else // !wxUSE_LOG_DEBUG + #define wxVLogDebug(fmt, valist) wxLogNop() + + #ifdef HAVE_VARIADIC_MACROS + #define wxLogDebug(fmt, ...) wxLogNop() + #else // !HAVE_VARIADIC_MACROS + WX_DEFINE_VARARG_FUNC_NOP(wxLogDebug, 1, (const wxString&)) + #endif +#endif // wxUSE_LOG_DEBUG/!wxUSE_LOG_DEBUG + +#if wxUSE_LOG_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 wxLogDebug(const wxChar *, ...) { } - inline void wxLogTrace(const wxChar *, ...) { } - inline void wxLogTrace(wxTraceMask, const wxChar *, ...) { } - inline void wxLogTrace(const wxChar *, const wxChar *, ...) { } -#endif // debug/!debug +#if WXWIN_COMPATIBILITY_2_8 + 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 +#endif // WXWIN_COMPATIBILITY_2_8 + +#else // !wxUSE_LOG_TRACE + #define wxVLogTrace(mask, fmt, valist) wxLogNop() + + #ifdef HAVE_VARIADIC_MACROS + #define wxLogTrace(mask, fmt, ...) wxLogNop() + #else // !HAVE_VARIADIC_MACROS + #if WXWIN_COMPATIBILITY_2_8 + WX_DEFINE_VARARG_FUNC_NOP(wxLogTrace, 2, (wxTraceMask, const wxString&)) + #endif + 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 // wxUSE_LOG_TRACE/!wxUSE_LOG_TRACE + +#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 +wxSafeShowMessage(const wxString& title, const wxString& text); // ---------------------------------------------------------------------------- // debug only logging functions: use them with API name and error code // ---------------------------------------------------------------------------- -#ifndef __TFILE__ - #define __XFILE__(x) Tx) - #define __TFILE__ __XFILE__(__FILE__) -#endif - -#ifdef __WXDEBUG__ +#if wxUSE_LOG_DEBUG // make life easier for people using VC++ IDE: clicking on the message // will take us immediately to the place of the failed API #ifdef __VISUALC__ #define wxLogApiError(api, rc) \ wxLogDebug(wxT("%s(%d): '%s' failed with error 0x%08lx (%s)."), \ - __TFILE__, __LINE__, api, \ - rc, wxSysErrorMsg(rc)) + __FILE__, __LINE__, api, \ + (long)rc, wxSysErrorMsg(rc)) #else // !VC++ #define wxLogApiError(api, rc) \ - wxLogDebug(wxT("In file %s at line %d: '%s' failed with " \ - "error 0x%08lx (%s)."), \ - __TFILE__, __LINE__, api, \ - rc, wxSysErrorMsg(rc)) + wxLogDebug(wxT("In file %s at line %d: '%s' failed with ") \ + wxT("error 0x%08lx (%s)."), \ + __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 *) { } -#endif //debug/!debug +#else // !wxUSE_LOG_DEBUG + #define wxLogApiError(api, err) wxLogNop() + #define wxLogLastError(api) wxLogNop() +#endif // wxUSE_LOG_DEBUG/!wxUSE_LOG_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_ +