// Created: 29/01/98
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifndef _WX_LOG_H_
-#define _WX_LOG_H_
+#ifndef _WX_LOG_H_
+#define _WX_LOG_H_
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma interface "log.h"
#endif
-#include "wx/setup.h"
+#include "wx/defs.h"
+
+#if wxUSE_LOG
+
#include "wx/string.h"
+#include "wx/arrstr.h"
// ----------------------------------------------------------------------------
// forward declarations
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxTextCtrl;
-class WXDLLEXPORT wxLogFrame;
-class WXDLLEXPORT wxFrame;
+#if wxUSE_GUI
+ class WXDLLIMPEXP_CORE wxTextCtrl;
+ class WXDLLIMPEXP_CORE wxLogFrame;
+ class WXDLLIMPEXP_CORE wxFrame;
+#endif // wxUSE_GUI
// ----------------------------------------------------------------------------
// types
// headers
// ----------------------------------------------------------------------------
-#if wxUSE_LOG
-
+#ifndef __WXWINCE__
#include <time.h> // for time_t
+#endif
#include "wx/dynarray.h"
+#ifndef wxUSE_LOG_DEBUG
+# ifdef __WXDEBUG__
+# define wxUSE_LOG_DEBUG 1
+# else // !__WXDEBUG__
+# define wxUSE_LOG_DEBUG 0
+# endif
+#endif
+
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
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
#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();
+ // 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 );
+
// 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)
- { bool doLogOld = ms_doLog; ms_doLog = doIt; return doLogOld; }
+
+ // 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() ) {
+ if ( IsEnabled() && ms_logLevel >= level )
+ {
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)
+
+ // 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)
+ // 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
+
+ // add string trace mask
+ static void AddTraceMask(const wxString& str)
+ { ms_aTraceMasks.push_back(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.
+ // 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; }
+
// 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 ms_aTraceMasks.Index(mask) != wxNOT_FOUND; }
- // get the current timestamp format string (may be NULL)
+ // is this trace mask in the list?
+ static bool IsAllowedTraceMask(const wxChar *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; }
+
// 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() { }
-protected:
- bool m_bHasMessages; // any messages in the queue?
+ // this method exists for backwards compatibility only, don't use
+ bool HasPendingMessages() const { return true; }
+
+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()
+
+ // 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
+
+ // 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);
private:
// ----------------
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
// ----------------------------------------------------------------------------
// log everything to a "FILE *", stderr by default
-class WXDLLEXPORT wxLogStderr : public wxLog
+class WXDLLIMPEXP_BASE wxLogStderr : public wxLog
{
+ DECLARE_NO_COPY_CLASS(wxLogStderr)
+
public:
// redirect log output to a FILE
wxLogStderr(FILE *fp = (FILE *) NULL);
#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
// ~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
// 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);
// do we pass the messages to the old logger?
bool m_bPassMessages;
+
+ DECLARE_NO_COPY_CLASS(wxLogChain)
};
// a chain log target which uses itself as the new logger
-class WXDLLEXPORT wxLogPassThrough : public wxLogChain
+class WXDLLIMPEXP_BASE wxLogPassThrough : public wxLogChain
{
public:
wxLogPassThrough();
-};
-
-// ----------------------------------------------------------------------------
-// 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
-
-#if wxUSE_TEXTCTRL
-
-// log everything to a text window (GUI only of course)
-class WXDLLEXPORT wxLogTextCtrl : public wxLog
-{
-public:
- wxLogTextCtrl(wxTextCtrl *pTextCtrl);
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?
+ DECLARE_NO_COPY_CLASS(wxLogPassThrough)
};
-#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
-
-class WXDLLEXPORT wxLogWindow : public wxLogPassThrough
-{
-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);
-
-private:
- wxLogFrame *m_pLogFrame; // the log frame
-};
-
-#endif // wxUSE_LOGWINDOW
-
+#if wxUSE_GUI
+ // include GUI log targets:
+ #include "wx/generic/logg.h"
#endif // wxUSE_GUI
// ============================================================================
// ----------------------------------------------------------------------------
// 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<level>
-// -------------------
+// ----------------------------------------------------------------------------
-#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, ...)
+#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)
#else // !wxUSE_LOG
// 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) \
+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, ...) { }
+
+// 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
// 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
+ // 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
DECLARE_LOG_FUNCTION2(SysError, long lErrCode);
// debug functions do nothing in release mode
-#ifdef __WXDEBUG__
+#if wxUSE_LOG_DEBUG
DECLARE_LOG_FUNCTION(Debug);
- // first king of LogTrace is uncoditional: it doesn't check the level,
- DECLARE_LOG_FUNCTION(Trace);
+ // there is no more unconditional LogTrace: it is not different from
+ // LogDebug and it creates overload ambiguities
+ //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()
+ // 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);
- // 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 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 *, ...) { }
#endif // debug/!debug
+// 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
// ----------------------------------------------------------------------------
#ifdef __VISUALC__
#define wxLogApiError(api, rc) \
wxLogDebug(wxT("%s(%d): '%s' failed with error 0x%08lx (%s)."), \
- __TFILE__, __LINE__, api, \
- rc, wxSysErrorMsg(rc))
+ __TFILE__, __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)."), \
+ __TFILE__, __LINE__, api, \
+ (long)rc, wxSysErrorMsg(rc))
#endif // VC++/!VC++
#define wxLogLastError(api) wxLogApiError(api, wxSysErrorCode())
#endif //debug/!debug
#endif // _WX_LOG_H_
+
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