fix for vc4.2+ for c++ standard exception handling

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

diff --git a/include/wx/log.h b/include/wx/log.h
index 5d492339b84d560e03a0c53b952674e40a5c2903..afabcbac84e913e360b0a0f23dd5080effe7d0f4 100644 (file)
--- a/include/wx/log.h
+++ b/include/wx/log.h
@@ -52,10 +52,18 @@ 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
+#  include <ostream.h>
+#else
+#  include <ostream>
+#  ifdef _MSC_VER
+      using namespace std;
+#  endif
+#endif
 
 // ----------------------------------------------------------------------------
 // derive from this class to redirect (or suppress, or ...) log messages
@@ -69,7 +77,13 @@ public:
 
   // sink function
   static void OnLog(wxLogLevel level, const char *szString)
-    { if ( ms_pLogger != 0 ) ms_pLogger->DoLog(level, szString); }
+  {
+    wxLog *pLogger = GetActiveTarget();
+    if ( pLogger )
+    {
+      pLogger->DoLog(level, szString);
+    }
+  }
 
   // message buffering
     // flush shows all messages if they're not logged immediately
@@ -82,6 +96,9 @@ public:
   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 = NULL disables logging. if bNoFlashOld is true,
     // the old log target isn't flashed which might lead to loss of messages!
     // returns the previous log target
@@ -157,7 +174,6 @@ private:
 };
 
 // log everything to an "ostream", cerr by default
-class ostream;
 class WXDLLEXPORT wxLogStream : public wxLog
 {
 public:
@@ -172,6 +188,8 @@ protected:
   ostream *m_ostr;
 };
 
+#ifndef wxUSE_NOGUI
+
 // log everything to a text window (GUI only of course)
 class WXDLLEXPORT wxLogTextCtrl : public wxLogStream
 {
@@ -253,6 +271,8 @@ private:
   wxLogFrame *m_pLogFrame;      // the log frame
 };
 
+#endif // wxUSE_NOGUI
+
 // ----------------------------------------------------------------------------
 // /dev/null log target: suppress logging until this object goes out of scope
 // ----------------------------------------------------------------------------
@@ -348,9 +368,6 @@ DECLARE_LOG_FUNCTION2(SysError, long lErrCode);
 //  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
 // ----------------------------------------------------------------------------