Doesn't reset the stream pos to 0 in CanRead().

[wxWidgets.git] / include / wx / log.h

diff --git a/include/wx/log.h b/include/wx/log.h
index 3798dec97c1fa267ad0402e0b9a54112511d7cba..c000ac1274f64c0c2a57f0952982b2465ed462e3 100644 (file)
--- a/include/wx/log.h
+++ b/include/wx/log.h
@@ -16,6 +16,28 @@
     #pragma interface "log.h"
 #endif
 
+#include "wx/setup.h"
+#include "wx/string.h"
+
+// ----------------------------------------------------------------------------
+// forward declarations
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxTextCtrl;
+class WXDLLEXPORT wxLogFrame;
+class WXDLLEXPORT wxFrame;
+
+// ----------------------------------------------------------------------------
+// types
+// ----------------------------------------------------------------------------
+
+typedef unsigned long wxTraceMask;
+typedef unsigned long wxLogLevel;
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
 #if wxUSE_LOG
 
 #include <time.h>   // for time_t
@@ -68,26 +90,7 @@ enum
     #define wxTraceOleCalls 0x0100  // OLE interface calls
 #endif
 
-typedef unsigned long wxTraceMask;
-typedef unsigned long wxLogLevel;
-
-// ----------------------------------------------------------------------------
-// forward declarations
-// ----------------------------------------------------------------------------
-
-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
+#include "wx/ioswrap.h"
 
 // ----------------------------------------------------------------------------
 // derive from this class to redirect (or suppress, or ...) log messages
@@ -129,6 +132,13 @@ public:
     bool HasPendingMessages() const { return m_bHasMessages; }
 
     // only one sink is active at each moment
+        // flush the active target if any
+    static void FlushActive()
+    {
+        wxLog *log = GetActiveTarget();
+        if ( log )
+            log->Flush();
+    }
         // get current log target, will call wxApp::CreateLogTarget() to
         // create one if none exists
     static wxLog *GetActiveTarget();
@@ -150,6 +160,11 @@ public:
         // add string trace mask
     static void RemoveTraceMask(const wxString& str);
 
+        // 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
     bool GetVerbose() const { return m_bVerbose; }
@@ -159,6 +174,14 @@ public:
     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; }
+
+    // helpers
+        // 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() { }
 
@@ -182,6 +205,10 @@ private:
     static bool        ms_doLog;        // FALSE => all logging disabled
     static bool        ms_bAutoCreate;  // create new log targets on demand?
 
+    // format string for strftime(), if NULL, time stamping log messages is
+    // disabled
+    static const wxChar *ms_timestamp;
+
     static wxTraceMask ms_ulTraceMask;   // controls wxLogTrace behaviour
     static wxArrayString ms_aTraceMasks; // more powerful filter for wxLogTrace
 };
@@ -221,18 +248,25 @@ protected:
 };
 #endif
 
-#ifndef wxUSE_NOGUI
+// 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_STD_IOSTREAM
 // log everything to a text window (GUI only of course)
-class WXDLLEXPORT wxLogTextCtrl : public wxLogStream
+class WXDLLEXPORT wxLogTextCtrl : public wxLog
 {
 public:
-    // we just create an ostream from wxTextCtrl and use it in base class
     wxLogTextCtrl(wxTextCtrl *pTextCtrl);
-    ~wxLogTextCtrl();
+
+private:
+    // implement sink function
+    virtual void DoLogString(const wxChar *szString, time_t t);
+
+    // the control we use
+    wxTextCtrl *m_pTextCtrl;
 };
-#endif
 
 // ----------------------------------------------------------------------------
 // GUI log target, the default one for wxWindows programs
@@ -311,7 +345,7 @@ private:
     wxLogFrame *m_pLogFrame;      // the log frame
 };
 
-#endif // wxUSE_NOGUI
+#endif // wxUSE_GUI
 
 // ----------------------------------------------------------------------------
 // /dev/null log target: suppress logging until this object goes out of scope
@@ -376,10 +410,9 @@ extern void WXDLLEXPORT wxLog##level(arg1, const wxChar *szFormat, ...)
 
 // log functions do nothing at all
 #define DECLARE_LOG_FUNCTION(level)                                 \
-inline void WXDLLEXPORT wxLog##level(const wxChar * WXUNUSED(szFormat), ...) {}
+inline void WXDLLEXPORT wxLog##level(const wxChar *szFormat, ...) {}
 #define DECLARE_LOG_FUNCTION2(level, arg1)                          \
-inline void WXDLLEXPORT wxLog##level(WXUNUSED(arg1),                \
-                                     const wxChar *WXUNUSED(szFormat), ...) {}
+inline void WXDLLEXPORT wxLog##level(arg1, const wxChar *szFormat, ...) {}
 
 #endif // wxUSE_LOG/!wxUSE_LOG
 
@@ -438,21 +471,21 @@ DECLARE_LOG_FUNCTION2(SysError, long lErrCode);
 // ----------------------------------------------------------------------------
 
 #ifndef __TFILE__
-    #define __XFILE__(x) _T(x)
+    #define __XFILE__(x) Tx)
     #define __TFILE__ __XFILE__(__FILE__)
 #endif
 
-#if __WXDEBUG__
+#ifdef __WXDEBUG__
     // 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(_T("%s(%d): '%s' failed with error 0x%08lx (%s)."),          \
+        wxLogDebug(wxT("%s(%d): '%s' failed with error 0x%08lx (%s)."),          \
                    __TFILE__, __LINE__, api,                                    \
                    rc, wxSysErrorMsg(rc))
 #else // !VC++
     #define wxLogApiError(api, rc)                                              \
-        wxLogDebug(_T("In file %s at line %d: '%s' failed with "                \
+        wxLogDebug(wxT("In file %s at line %d: '%s' failed with "                \
                       "error 0x%08lx (%s)."),                                   \
                    __TFILE__, __LINE__, api,                                    \
                    rc, wxSysErrorMsg(rc))