Document wxDocument::DeleteContents().

[wxWidgets.git] / src / common / appbase.cpp

diff --git a/src/common/appbase.cpp b/src/common/appbase.cpp
index c8ec12a388bfaa0a50038e86d6a6284032dbce58..65231954924eb8ebda4e66d8c2cda625731ab722 100644 (file)
--- a/src/common/appbase.cpp
+++ b/src/common/appbase.cpp
@@ -154,6 +154,10 @@ wxAppConsoleBase::wxAppConsoleBase()
 
 wxAppConsoleBase::~wxAppConsoleBase()
 {
+    // we're being destroyed and using this object from now on may not work or
+    // even crash so don't leave dangling pointers to it
+    ms_appInstance = NULL;
+
     delete m_traits;
 }
 
@@ -868,22 +872,19 @@ void WXDLLIMPEXP_BASE wxMutexGuiLeave()
 bool wxAppTraitsBase::ShowAssertDialog(const wxString& msgOriginal)
 {
 #if wxDEBUG_LEVEL
-    wxString msg = msgOriginal;
+    wxString msg;
 
 #if wxUSE_STACKWALKER
-#if !defined(__WXMSW__)
-    // on Unix stack frame generation may take some time, depending on the
-    // size of the executable mainly... warn the user that we are working
-    wxFprintf(stderr, wxT("[Debug] Generating a stack trace... please wait"));
-    fflush(stderr);
-#endif
-
     const wxString stackTrace = GetAssertStackTrace();
     if ( !stackTrace.empty() )
+    {
         msg << wxT("\n\nCall stack:\n") << stackTrace;
+
+        wxMessageOutputDebug().Output(msg);
+    }
 #endif // wxUSE_STACKWALKER
 
-    return DoShowAssertDialog(msg);
+    return DoShowAssertDialog(msgOriginal + msg);
 #else // !wxDEBUG_LEVEL
     wxUnusedVar(msgOriginal);
 
@@ -895,6 +896,15 @@ bool wxAppTraitsBase::ShowAssertDialog(const wxString& msgOriginal)
 wxString wxAppTraitsBase::GetAssertStackTrace()
 {
 #if wxDEBUG_LEVEL
+
+#if !defined(__WXMSW__)
+    // on Unix stack frame generation may take some time, depending on the
+    // size of the executable mainly... warn the user that we are working
+    wxFprintf(stderr, "Collecting stack trace information, please wait...");
+    fflush(stderr);
+#endif // !__WXMSW__
+
+
     wxString stackTrace;
 
     class StackDump : public wxStackWalker
@@ -1182,14 +1192,10 @@ bool DoShowAssertDialog(const wxString& msg)
         //case IDNO: nothing to do
     }
 #else // !__WXMSW__
-    wxFprintf(stderr, wxT("%s\n"), msg.c_str());
-    fflush(stderr);
-
-    // TODO: ask the user to enter "Y" or "N" on the console?
-    wxTrap();
+    wxUnusedVar(msg);
 #endif // __WXMSW__/!__WXMSW__
 
-    // continue with the asserts
+    // continue with the asserts by default
     return false;
 }
 
@@ -1232,27 +1238,15 @@ void ShowAssertDialog(const wxString& file,
     // since dialogs cannot be displayed
     if ( !wxThread::IsMain() )
     {
-        msg += wxT(" [in child thread]");
-
-#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
-        msg << wxT("\r\n");
-        OutputDebugString(msg.wx_str());
-#else
-        // send to stderr
-        wxFprintf(stderr, wxT("%s\n"), msg.c_str());
-        fflush(stderr);
-#endif
-        // He-e-e-e-elp!! we're asserting in a child thread
-        wxTrap();
+        msg += wxString::Format(" [in thread %lx]", wxThread::GetCurrentId());
     }
-    else
 #endif // wxUSE_THREADS
 
+    // log the assert in any case
+    wxMessageOutputDebug().Output(msg);
+
     if ( !s_bNoAsserts )
     {
-        // send it to the normal log destination
-        wxLogDebug(wxT("%s"), msg.c_str());
-
         if ( traits )
         {
             // delegate showing assert dialog (if possible) to that class