Add exemple for redirecting cout

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

diff --git a/include/wx/log.h b/include/wx/log.h
index cc42cdb54230c0f97f2b5aea8fa243698cc7818f..f5138cf988e40d91f0fbc23a7dbd9e1761c6ca81 100644 (file)
--- a/include/wx/log.h
+++ b/include/wx/log.h
@@ -135,9 +135,12 @@ public:
         // flush the active target if any
     static void FlushActive()
     {
-        wxLog *log = GetActiveTarget();
-        if ( log )
-            log->Flush();
+        if ( !ms_suspendCount )
+        {
+            wxLog *log = GetActiveTarget();
+            if ( log && log->HasPendingMessages() )
+                log->Flush();
+        }
     }
         // get current log target, will call wxApp::CreateLogTarget() to
         // create one if none exists
@@ -145,6 +148,13 @@ public:
         // 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)
+    static void Suspend() { ms_suspendCount++; }
+        // 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
@@ -205,6 +215,8 @@ private:
     static bool        ms_doLog;        // FALSE => all logging disabled
     static bool        ms_bAutoCreate;  // create new log targets on demand?
 
+    static size_t      ms_suspendCount; // if positive, logs are not flushed
+
     // format string for strftime(), if NULL, time stamping log messages is
     // disabled
     static const wxChar *ms_timestamp;
@@ -286,8 +298,9 @@ protected:
     // empty everything
     void Clear();
 
-    wxArrayString m_aMessages;
-    wxArrayLong   m_aTimes;
+    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?
 };
@@ -479,15 +492,15 @@ DECLARE_LOG_FUNCTION2(SysError, long lErrCode);
     // 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(wxT("%s(%d): '%s' failed with error 0x%08lx (%s)."),          \
-                   __TFILE__, __LINE__, api,                                    \
+    #define wxLogApiError(api, rc)                                            \
+        wxLogDebug(wxT("%s(%d): '%s' failed with error 0x%08lx (%s)."),       \
+                   __TFILE__, __LINE__, _T(api),                              \
                    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,                                    \
+    #define wxLogApiError(api, rc)                                            \
+        wxLogDebug(wxT("In file %s at line %d: '%s' failed with "             \
+                      "error 0x%08lx (%s)."),                                 \
+                   __TFILE__, __LINE__, _T(api),                              \
                    rc, wxSysErrorMsg(rc))
 #endif // VC++/!VC++