#ifndef _WX_LOG_H_
#define _WX_LOG_H_
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma interface "log.h"
-#endif
-
#include "wx/defs.h"
// ----------------------------------------------------------------------------
{
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
// change the flag state, return the previous one
static bool EnableLogging(bool doIt = true)
- { bool doLogOld = ms_doLog; ms_doLog = doIt; return doLogOld; }
+ { 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 wxChar *szString, time_t t);
// message buffering
// current is NULL?
static void DontCreateOnDemand();
+ // 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); }
+ { ms_aTraceMasks.push_back(str); }
// add string trace mask
static void RemoveTraceMask(const wxString& str);
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; }
+#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
// you override DoLog() you might not need it at all
virtual void DoLogString(const wxChar *szString, time_t t);
+ // log a line containing the number of times the previous message was
+ // repeated
+ // returns: the number
+ static unsigned DoLogNumberOfRepeats();
+
private:
// static variables
// ----------------
+ // traditional behaviour or counting repetitions
+ 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 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_bAutoCreate; // create new log targets on demand?
// "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 wxChar *szString, time_t t);
+ virtual void DoLogString(const wxChar *szString, time_t t);
+
+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);
virtual void DoLogString(const wxChar *szString, time_t t);
FILE *m_fp;
+
+ DECLARE_NO_COPY_CLASS(wxLogStderr)
};
#if wxUSE_STD_IOSTREAM
#define DECLARE_LOG_FUNCTION(level) \
extern void WXDLLIMPEXP_BASE wxVLog##level(const wxChar *szFormat, \
- va_list argptr); \
+ 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
+ ...) ATTRIBUTE_PRINTF_1
+#define DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, expdecl) \
+extern void expdecl wxVLog##level(argclass arg, \
+ const wxChar *szFormat, \
+ va_list argptr); \
+extern void expdecl wxLog##level(argclass arg, \
+ const wxChar *szFormat, \
+ ...) ATTRIBUTE_PRINTF_2
#else // !wxUSE_LOG
// 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_EXP(level, arg, expdecl) \
-inline void wxVLog##level(arg, const wxChar *szFormat, \
- va_list argptr) {} \
-inline void wxLog##level(arg, const wxChar *szFormat, ...) { }
+inline void wxVLog##level(const wxChar *WXUNUSED(szFormat), \
+ va_list WXUNUSED(argptr)) { } \
+inline void wxLog##level(const wxChar *WXUNUSED(szFormat), \
+ ...) { }
+#define DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, expdecl) \
+inline void wxVLog##level(argclass WXUNUSED(arg), \
+ const wxChar *WXUNUSED(szFormat), \
+ va_list WXUNUSED(argptr)) {} \
+inline void wxLog##level(argclass WXUNUSED(arg), \
+ const wxChar *WXUNUSED(szFormat), \
+ ...) { }
// Empty Class to fake wxLogNull
class WXDLLIMPEXP_BASE wxLogNull
#define wxTRACE_OleCalls wxEmptyString // OLE interface calls
#endif // wxUSE_LOG/!wxUSE_LOG
-#define DECLARE_LOG_FUNCTION2(level, arg) \
- DECLARE_LOG_FUNCTION2_EXP(level, arg, WXDLLIMPEXP_BASE)
+
+#define DECLARE_LOG_FUNCTION2(level, argclass, arg) \
+ DECLARE_LOG_FUNCTION2_EXP(level, argclass, arg, WXDLLIMPEXP_BASE)
// 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);
// this one is the same as previous except that it allows to explicitly
class WXDLLEXPORT 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
// 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);
// debug functions do nothing in release mode
-#if wxUSE_LOG_DEBUG
+#if wxUSE_LOG && wxUSE_LOG_DEBUG
DECLARE_LOG_FUNCTION(Debug);
// there is no more unconditional LogTrace: it is not different from
// this version only logs the message if the mask had been added to the
// list of masks with AddTraceMask()
- DECLARE_LOG_FUNCTION2(Trace, const wxChar *mask);
+ DECLARE_LOG_FUNCTION2(Trace, const wxChar *, mask);
// 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(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);
+#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
+ inline void wxLogNop() { }
+
+ #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
+ // note that leaving out "fmt" in the vararg functions provokes a warning
+ // from SGI CC: "the last argument of the varargs function is unnamed"
+ inline void wxLogDebug(const wxChar *fmt, ...) { wxUnusedVar(fmt); }
+ inline void wxLogTrace(wxTraceMask, const wxChar *fmt, ...) { wxUnusedVar(fmt); }
+ inline void wxLogTrace(const wxChar *, const wxChar *fmt, ...) { wxUnusedVar(fmt); }
+ #endif // HAVE_VARIADIC_MACROS/!HAVE_VARIADIC_MACROS
#endif // debug/!debug
// wxLogFatalError helper: show the (fatal) error to the user in a safe way,
#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
projects / wxWidgets.git / blobdiff