X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c67daf87774c71ae9f73af9969008af220e52a11..8ffd43c56b793781fde046aa532340b92a0067eb:/include/wx/log.h diff --git a/include/wx/log.h b/include/wx/log.h index feb245959a..4a390ce922 100644 --- a/include/wx/log.h +++ b/include/wx/log.h @@ -12,10 +12,14 @@ #ifndef _WX_LOG_H_ #define _WX_LOG_H_ -#ifdef __GNUG__ -#pragma interface "log.h" +#ifdef __GNUG__ + #pragma interface "log.h" #endif +#include // for time_t + +#include "wx/dynarray.h" + // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- @@ -23,18 +27,34 @@ // different standard log levels (you may also define your own) enum { - 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_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_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_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 }; +// symbolic trace masks - wxLogTrace("foo", "some trace message...") will be +// discarded unless the string "foo" has been added to the list of allowed +// ones with AddTraceMask() + +#define wxTRACE_MemAlloc "memalloc" // trace memory allocation (new/delete) +#define wxTRACE_Messages "messages" // trace window messages/X callbacks +#define wxTRACE_ResAlloc "resalloc" // trace GDI resource allocation +#define wxTRACE_RefCount "refcount" // trace various ref counting operations + +#ifdef __WXMSW__ + #define wxTRACE_OleCalls "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) @@ -43,7 +63,7 @@ enum #define wxTraceRefCount 0x0008 // trace various ref counting operations #ifdef __WXMSW__ - #define wxTraceOleCalls 0x0100 // OLE interface calls + #define wxTraceOleCalls 0x0100 // OLE interface calls #endif typedef unsigned long wxTraceMask; @@ -52,92 +72,116 @@ typedef unsigned long wxLogLevel; // ---------------------------------------------------------------------------- // forward declarations // ---------------------------------------------------------------------------- -class wxTextCtrl; -class wxLogFrame; -class wxFrame; -class ostream; + +class WXDLLEXPORT wxTextCtrl; +class WXDLLEXPORT wxLogFrame; +class WXDLLEXPORT wxFrame; + +#if wxUSE_IOSTREAMH +// N.B. BC++ doesn't have istream.h, ostream.h +# include +#else +# include +# if defined(__VISUALC__) || defined(__MWERKS__) + using namespace std; +# endif +#endif // ---------------------------------------------------------------------------- // 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 { public: - // ctor - wxLog(); - - // sink function - static void OnLog(wxLogLevel level, const char *szString) - { if ( ms_pLogger != 0 ) ms_pLogger->DoLog(level, szString); } - - // 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) - 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 - // get current log target, will call wxApp::CreateLogTarget() to create one - // if - static wxLog *GetActiveTarget(); - // change log target, pLogger = NULL disables logging, - // returns the previous log target - static wxLog *SetActiveTarget(wxLog *pLogger); - - // functions controlling the default wxLog behaviour - // verbose mode is activated by standard command-line '-verbose' option - void SetVerbose(bool bVerbose = TRUE) { m_bVerbose = bVerbose; } - // sets the format for timestamp prepended by wxLog::DoLog(): it's - // passed to strftime() function, see it's documentation for details. - // no time stamp at all if szTF is NULL or empty - // NB: the string is not copied, so it's lifetime must be long enough! - void SetTimeStampFormat(const char *szTF) { m_szTimeFormat = szTF; } - // trace mask (see wxTraceXXX constants for details) - static void SetTraceMask(wxTraceMask ulMask) { ms_ulTraceMask = ulMask; } - // should GetActiveTarget() try to create a new log object if the current - // is NULL? - static void DontCreateOnDemand() { ms_bAutoCreate = FALSE; } - - // accessors - // gets the verbose status - bool GetVerbose() const { return m_bVerbose; } - // get current time format - const char *GetTimeStampFormat() const { return m_szTimeFormat; } - // get trace mask - static wxTraceMask GetTraceMask() { return ms_ulTraceMask; } - - // make dtor virtual for all derived classes - virtual ~wxLog() { } + // ctor + wxLog(); + + // these functions allow to completely disable all log messages + // is logging disabled now? + static bool IsEnabled() { return ms_doLog; } + // 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 char *szString, time_t t) + { + if ( IsEnabled() ) { + wxLog *pLogger = GetActiveTarget(); + if ( pLogger ) + pLogger->DoLog(level, szString, 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) + 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 + // get current log target, will call wxApp::CreateLogTarget() to + // create one if none exists + static wxLog *GetActiveTarget(); + // change log target, pLogger may be NULL + static wxLog *SetActiveTarget(wxLog *pLogger); + + // functions controlling the default wxLog behaviour + // verbose mode is activated by standard command-line '-verbose' + // option + void SetVerbose(bool bVerbose = TRUE) { m_bVerbose = bVerbose; } + // should GetActiveTarget() try to create a new log object if the + // current is NULL? + static void DontCreateOnDemand() { ms_bAutoCreate = FALSE; } + + // 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 + static void RemoveTraceMask(const wxString& str); + + // accessors + // gets the verbose status + bool GetVerbose() const { return m_bVerbose; } + // get trace mask + static wxTraceMask GetTraceMask() { return ms_ulTraceMask; } + // is this trace mask in the list? + static bool IsAllowedTraceMask(const char *mask) + { return ms_aTraceMasks.Index(mask) != wxNOT_FOUND; } + + // make dtor virtual for all derived classes + virtual ~wxLog() { } protected: - bool m_bHasMessages; + bool m_bHasMessages; // any messages in the queue? + bool m_bVerbose; // FALSE => ignore LogInfo messages - bool m_bVerbose; // FALSE => ignore LogInfo messages - const char *m_szTimeFormat; // format for strftime() + // 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 char *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 char *szString, time_t t); - // 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 char *szString); - // 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 char *szString); +private: + // static variables + // ---------------- - // helpers - // put the time stamp in the current format into the string - wxString TimeStamp() const; + 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? -private: - // static variables - // ---------------- - static wxLog *ms_pLogger; // currently active log sink - static bool ms_bAutoCreate; // automatically create new log targets? - static wxTraceMask ms_ulTraceMask; // controls wxLogTrace behaviour + static wxTraceMask ms_ulTraceMask; // controls wxLogTrace behaviour + static wxArrayString ms_aTraceMasks; // more powerful filter for wxLogTrace }; // ---------------------------------------------------------------------------- @@ -148,40 +192,45 @@ private: class WXDLLEXPORT wxLogStderr : public wxLog { public: - // redirect log output to a FILE - wxLogStderr(FILE *fp = (FILE *) NULL); + // redirect log output to a FILE + wxLogStderr(FILE *fp = (FILE *) NULL); private: - // implement sink function - virtual void DoLogString(const char *szString); + // implement sink function + virtual void DoLogString(const char *szString, time_t t); - FILE *m_fp; + FILE *m_fp; }; +#if wxUSE_STD_IOSTREAM // log everything to an "ostream", cerr by default -class ostream; class WXDLLEXPORT wxLogStream : public wxLog { public: - // redirect log output to an ostream - wxLogStream(ostream *ostr = (ostream *) NULL); + // redirect log output to an ostream + wxLogStream(ostream *ostr = (ostream *) NULL); protected: - // implement sink function - virtual void DoLogString(const char *szString); + // implement sink function + virtual void DoLogString(const char *szString, time_t t); - // @@ using ptr here to avoid including from this file - ostream *m_ostr; + // using ptr here to avoid including from this file + ostream *m_ostr; }; +#endif + +#ifndef wxUSE_NOGUI +#if wxUSE_STD_IOSTREAM // log everything to a text window (GUI only of course) class WXDLLEXPORT wxLogTextCtrl : public wxLogStream { public: - // we just create an ostream from wxTextCtrl and use it in base class - wxLogTextCtrl(wxTextCtrl *pTextCtrl); - ~wxLogTextCtrl(); + // we just create an ostream from wxTextCtrl and use it in base class + wxLogTextCtrl(wxTextCtrl *pTextCtrl); + ~wxLogTextCtrl(); }; +#endif // ---------------------------------------------------------------------------- // GUI log target, the default one for wxWindows programs @@ -189,17 +238,22 @@ public: class WXDLLEXPORT wxLogGui : public wxLog { public: - // ctor - wxLogGui(); + // ctor + wxLogGui(); - // show all messages that were logged since the last Flush() - virtual void Flush(); + // show all messages that were logged since the last Flush() + virtual void Flush(); protected: - virtual void DoLog(wxLogLevel level, const char *szString); + virtual void DoLog(wxLogLevel level, const char *szString, time_t t); - wxArrayString m_aMessages; - bool m_bErrors; + // empty everything + void Clear(); + + wxArrayString m_aMessages; + wxArrayLong m_aTimes; + bool m_bErrors, // do we have any errors? + m_bWarnings; // any warnings? }; // ---------------------------------------------------------------------------- @@ -211,76 +265,77 @@ protected: class WXDLLEXPORT wxLogWindow : public wxLog { public: - wxLogWindow(wxFrame *pParent, // the parent frame (can be NULL) - const char *szTitle, // the title of the frame - bool bShow = TRUE, // show window immediately? - bool bPassToOld = TRUE); // pass log messages to the old target? - ~wxLogWindow(); + wxLogWindow(wxFrame *pParent, // the parent frame (can be NULL) + const char *szTitle, // the title of the frame + bool bShow = TRUE, // show window immediately? + bool bPassToOld = TRUE); // pass log messages to the old target? + ~wxLogWindow(); - // window operations + // window operations // show/hide the log window - void Show(bool bShow = TRUE); + void Show(bool bShow = TRUE); // retrieve the pointer to the frame - wxFrame *GetFrame() const; + wxFrame *GetFrame() const; - // accessors + // accessors // the previous log target (may be NULL) - wxLog *GetOldLog() const { return m_pOldLog; } + wxLog *GetOldLog() const { return m_pOldLog; } // are we passing the messages to the previous log target? - bool IsPassingMessages() const { return m_bPassMessages; } + bool IsPassingMessages() const { return m_bPassMessages; } - // we can pass the messages to the previous log target (we're in this mode by - // default: we collect all messages in the window, but also let the default - // processing take place) - void PassMessages(bool bDoPass) { m_bPassMessages = bDoPass; } + // we can pass the messages to the previous log target (we're in this mode by + // default: we collect all messages in the window, but also let the default + // processing take place) + void PassMessages(bool bDoPass) { m_bPassMessages = bDoPass; } - // base class virtuals + // base class virtuals // we don't need it ourselves, but we pass it to the previous logger - virtual void Flush(); + virtual void Flush(); - // overridables + // overridables // called immediately after the log frame creation allowing for // any extra initializations - virtual void OnFrameCreate(wxFrame *frame); + virtual void OnFrameCreate(wxFrame *frame); // called right before the log frame is going to be deleted - virtual void OnFrameDelete(wxFrame *frame); + virtual void OnFrameDelete(wxFrame *frame); protected: - virtual void DoLog(wxLogLevel level, const char *szString); - virtual void DoLogString(const char *szString); + virtual void DoLog(wxLogLevel level, const char *szString, time_t t); + virtual void DoLogString(const char *szString, time_t t); private: - bool m_bPassMessages; // pass messages to m_pOldLog? - wxLog *m_pOldLog; // previous log target - wxLogFrame *m_pLogFrame; // the log frame + bool m_bPassMessages; // pass messages to m_pOldLog? + wxLog *m_pOldLog; // previous log target + wxLogFrame *m_pLogFrame; // the log frame }; +#endif // wxUSE_NOGUI + // ---------------------------------------------------------------------------- // /dev/null log target: suppress logging until this object goes out of scope // ---------------------------------------------------------------------------- // example of usage: /* -void Foo() { - wxFile file; + void Foo() { + wxFile file; - // wxFile.Open() normally complains if file can't be opened, we don't want it - wxLogNull logNo; - if ( !file.Open("bar") ) - ... process error ourselves ... +// wxFile.Open() normally complains if file can't be opened, we don't want it +wxLogNull logNo; +if ( !file.Open("bar") ) +... process error ourselves ... - // ~wxLogNull called, old log sink restored +// ~wxLogNull called, old log sink restored } -*/ + */ class WXDLLEXPORT wxLogNull { public: - // ctor saves old log target, dtor restores it - wxLogNull() { m_pPrevLogger = wxLog::SetActiveTarget((wxLog *) NULL); } - ~wxLogNull() { (void)wxLog::SetActiveTarget(m_pPrevLogger); } + wxLogNull() { m_flagOld = wxLog::EnableLogging(FALSE); } + ~wxLogNull() { (void)wxLog::EnableLogging(m_flagOld); } private: - wxLog *m_pPrevLogger; // old log target + bool m_flagOld; // the previous value of the wxLog::ms_doLog }; // ============================================================================ @@ -296,85 +351,89 @@ private: // ------------------- #define DECLARE_LOG_FUNCTION(level) \ - extern void WXDLLEXPORT wxLog##level(const char *szFormat, ...) +extern void WXDLLEXPORT wxLog##level(const char *szFormat, ...) #define DECLARE_LOG_FUNCTION2(level, arg1) \ - extern void WXDLLEXPORT wxLog##level(arg1, const char *szFormat, ...) +extern void WXDLLEXPORT wxLog##level(arg1, const char *szFormat, ...) -// a generic function for all levels (level is passes as parameter) -DECLARE_LOG_FUNCTION2(Generic, wxLogLevel level); + // a generic function for all levels (level is passes as parameter) + DECLARE_LOG_FUNCTION2(Generic, wxLogLevel level); -// one function per each level -DECLARE_LOG_FUNCTION(FatalError); -DECLARE_LOG_FUNCTION(Error); -DECLARE_LOG_FUNCTION(Warning); -DECLARE_LOG_FUNCTION(Message); -DECLARE_LOG_FUNCTION(Info); -DECLARE_LOG_FUNCTION(Verbose); + // one function per each level + DECLARE_LOG_FUNCTION(FatalError); + DECLARE_LOG_FUNCTION(Error); + DECLARE_LOG_FUNCTION(Warning); + DECLARE_LOG_FUNCTION(Message); + DECLARE_LOG_FUNCTION(Info); + DECLARE_LOG_FUNCTION(Verbose); -// this function sends the log message to the status line of the top level -// application frame, if any -DECLARE_LOG_FUNCTION(Status); + // this function sends the log message to the status line of the top level + // 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); + // 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); -// additional one: as wxLogError, but also logs last system call error code -// and the corresponding error message if available -DECLARE_LOG_FUNCTION(SysError); + // additional one: as wxLogError, but also logs last system call error code + // and the corresponding error message if available + 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); + // 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); -// debug functions do nothing in release mode + // debug functions do nothing in release mode #ifdef __WXDEBUG__ - DECLARE_LOG_FUNCTION(Debug); + DECLARE_LOG_FUNCTION(Debug); + + // first king of LogTrace is uncoditional: it doesn't check the level, + DECLARE_LOG_FUNCTION(Trace); - // first king of LogTrace is uncoditional: it doesn't check the level, - // while the second one does nothing if all of level bits are not set - // in wxLog::GetActive()->GetTraceMask(). - DECLARE_LOG_FUNCTION(Trace); - DECLARE_LOG_FUNCTION2(Trace, wxTraceMask mask); + // 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 char *mask); + + // the last 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 - inline void wxLogDebug(const char *, ...) { } - inline void wxLogTrace(const char *, ...) { } - inline void wxLogTrace(wxTraceMask, const char *, ...) { } + // these functions do nothing in release builds + inline void wxLogDebug(const char *, ...) { } + inline void wxLogTrace(const char *, ...) { } + inline void wxLogTrace(wxTraceMask, const char *, ...) { } + inline void wxLogTrace(const char *, const char *, ...) { } #endif -// are we in 'verbose' mode? -// (note that it's often handy to change this var manually from the -// debugger, thus enabling/disabling verbose reporting for some -// parts of the program only) -WXDLLEXPORT_DATA(extern bool) g_bVerbose; - -// fwd decl to avoid including iostream.h here -class ostream; + // are we in 'verbose' mode? + // (note that it's often handy to change this var manually from the + // debugger, thus enabling/disabling verbose reporting for some + // parts of the program only) + WXDLLEXPORT_DATA(extern bool) g_bVerbose; -// ---------------------------------------------------------------------------- -// get error code/error message from system in a portable way -// ---------------------------------------------------------------------------- + // ---------------------------------------------------------------------------- + // get error code/error message from system in a portable way + // ---------------------------------------------------------------------------- -// return the last system error code -unsigned long WXDLLEXPORT wxSysErrorCode(); -// return the error message for given (or last if 0) error code -const char* WXDLLEXPORT wxSysErrorMsg(unsigned long nErrCode = 0); + // return the last system error code + WXDLLEXPORT unsigned long wxSysErrorCode(); + // return the error message for given (or last if 0) error code + WXDLLEXPORT const char* wxSysErrorMsg(unsigned long nErrCode = 0); -// ---------------------------------------------------------------------------- -// debug only logging functions: use them with API name and error code -// ---------------------------------------------------------------------------- + // ---------------------------------------------------------------------------- + // debug only logging functions: use them with API name and error code + // ---------------------------------------------------------------------------- #ifdef __WXDEBUG__ - #define wxLogApiError(api, rc) \ - wxLogDebug("At %s(%d) '%s' failed with error %lx (%s).", \ - __FILE__, __LINE__, api, \ - rc, wxSysErrorMsg(rc)) - #define wxLogLastError(api) wxLogApiError(api, wxSysErrorCode()) +#define wxLogApiError(api, rc) \ + wxLogDebug("At %s(%d) '%s' failed with error %lx (%s).", \ + __FILE__, __LINE__, api, \ + rc, wxSysErrorMsg(rc)) +#define wxLogLastError(api) wxLogApiError(api, wxSysErrorCode()) #else //!debug - inline void wxLogApiError(const char *, long) { } - inline void wxLogLastError(const char *) { } + inline void wxLogApiError(const char *, long) { } + inline void wxLogLastError(const char *) { } #endif //debug/!debug #endif // _WX_LOG_H_