// ----------------------------------------------------------------------------
// 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 <iostream.h>
+#else
+# include <ostream>
+# if defined(__VISUALC__) || defined(__MWERKS__)
+ using namespace std;
+# endif
+#endif
// ----------------------------------------------------------------------------
// derive from this class to redirect (or suppress, or ...) log messages
// 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; }
+
// sink function
static void OnLog(wxLogLevel level, const char *szString)
- { if ( ms_pLogger != 0 ) ms_pLogger->DoLog(level, szString); }
+ {
+ if ( IsEnabled() ) {
+ wxLog *pLogger = GetActiveTarget();
+ if ( pLogger )
+ pLogger->DoLog(level, szString);
+ }
+ }
// message buffering
// flush shows all messages if they're not logged immediately
// only one sink is active at each moment
// get current log target, will call wxApp::CreateLogTarget() to create one
- // if
+ // if none exists
static wxLog *GetActiveTarget();
- // change log target, pLogger = NULL disables logging,
- // returns the previous log target
+ // change log target, pLogger may be NULL
static wxLog *SetActiveTarget(wxLog *pLogger);
// functions controlling the default wxLog behaviour
// static variables
// ----------------
static wxLog *ms_pLogger; // currently active log sink
+ static bool ms_doLog; // FALSE => all logging disabled
static bool ms_bAutoCreate; // automatically create new log targets?
static wxTraceMask ms_ulTraceMask; // controls wxLogTrace behaviour
};
FILE *m_fp;
};
+#if wxUSE_STD_IOSTREAM
// log everything to an "ostream", cerr by default
-class ostream;
class WXDLLEXPORT wxLogStream : public wxLog
{
public:
// @@ using ptr here to avoid including <iostream.h> 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
{
wxLogTextCtrl(wxTextCtrl *pTextCtrl);
~wxLogTextCtrl();
};
+#endif
// ----------------------------------------------------------------------------
// GUI log target, the default one for wxWindows programs
wxLogFrame *m_pLogFrame; // the log frame
};
+#endif // wxUSE_NOGUI
+
// ----------------------------------------------------------------------------
// /dev/null log target: suppress logging until this object goes out of scope
// ----------------------------------------------------------------------------
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
};
// ============================================================================
// parts of the program only)
WXDLLEXPORT_DATA(extern bool) g_bVerbose;
-// fwd decl to avoid including iostream.h here
-class ostream;
-
// ----------------------------------------------------------------------------
// get error code/error message from system in a portable way
// ----------------------------------------------------------------------------
// return the last system error code
-unsigned long WXDLLEXPORT wxSysErrorCode();
+WXDLLEXPORT unsigned long wxSysErrorCode();
// return the error message for given (or last if 0) error code
-const char* WXDLLEXPORT wxSysErrorMsg(unsigned long nErrCode = 0);
+WXDLLEXPORT const char* wxSysErrorMsg(unsigned long nErrCode = 0);
// ----------------------------------------------------------------------------
// debug only logging functions: use them with API name and error code