bool wxAppTraitsBase::ShowAssertDialog(const wxString& msgOriginal)
{
#if wxDEBUG_LEVEL
wxString msg;
#if wxUSE_STACKWALKER
const wxString stackTrace = GetAssertStackTrace();
if ( !stackTrace.empty() )
{
msg << wxT("\n\nCall stack:\n") << stackTrace;
wxMessageOutputDebug().Output(msg);
}
#endif // wxUSE_STACKWALKER
return DoShowAssertDialog(msgOriginal + msg);
#else // !wxDEBUG_LEVEL
wxUnusedVar(msgOriginal);
return false;
#endif // wxDEBUG_LEVEL/!wxDEBUG_LEVEL
}
// show the assert modal dialog
static
void ShowAssertDialog(const wxChar *szFile,
int nLine,
const wxChar *szCond,
const wxChar *szMsg,
wxAppTraits *traits)
{
// this variable can be set to true to suppress "assert failure" messages
static bool s_bNoAsserts = false;
wxString msg;
msg.reserve(2048);
// make life easier for people using VC++ IDE by using this format: like
// this, clicking on the message will take us immediately to the place of
// the failed assert
msg.Printf(wxT("%s(%d): assert \"%s\" failed"), szFile, nLine, szCond);
if ( szMsg )
{
msg << _T(": ") << szMsg;
}
else // no message given
{
msg << _T('.');
}
#if wxUSE_STACKWALKER
const wxString stackTrace = GetAssertStackTrace();
if ( !stackTrace.empty() )
{
msg << _T("\n\nCall stack:\n") << stackTrace;
}
#endif // wxUSE_STACKWALKER
#if wxUSE_THREADS
// if we are not in the main thread, output the assert directly and trap
// since dialogs cannot be displayed
if ( !wxThread::IsMain() )
{
msg += wxT(" [in child thread]");
#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
msg << wxT("\r\n");
OutputDebugString(msg );
#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();
}
else
#endif // wxUSE_THREADS
if ( !s_bNoAsserts )
{
// send it to the normal log destination
wxLogDebug(_T("%s"), msg.c_str());
if ( traits )
{
// delegate showing assert dialog (if possible) to that class
s_bNoAsserts = traits->ShowAssertDialog(msg);
}
else // no traits object
{
// fall back to the function of last resort
s_bNoAsserts = DoShowAssertDialog(msg);
}
}
}
bool wxAppTraitsBase::ShowAssertDialog(const wxString& msg)
{
return DoShowAssertDialog(msg);
}
