-// The streambuf code was partly taken from chapter 3 by Jerry Schwarz of
-// AT&T's "C++ Lanuage System Release 3.0 Library Manual" - Stein Somers
-
-//=========================================================================
-// Called then the buffer is full (gcc 2.6.3)
-// or when "endl" is output (Borland 4.5)
-//=========================================================================
-// Class declaration using multiple inheritance doesn't work properly for
-// Borland. See note in wb_text.h.
-#ifndef NO_TEXT_WINDOW_STREAM
-int wxTextCtrl::overflow(int c)
-{
- // Make sure there is a holding area
- if ( allocate()==EOF )
- {
- wxError("Streambuf allocation failed","Internal error");
- return EOF;
- }
-
- // Verify that there are no characters in get area
- if ( gptr() && gptr() < egptr() )
- {
- wxError("Who's trespassing my get area?","Internal error");
- return EOF;
- }
-
- // Reset get area
- setg(0,0,0);
-
- // Make sure there is a put area
- if ( ! pptr() )
- {
-/* This doesn't seem to be fatal so comment out error message */
-// wxError("Put area not opened","Internal error");
- setp( base(), base() );
- }
-
- // Determine how many characters have been inserted but no consumed
- int plen = pptr() - pbase();
-
- // Now Jerry relies on the fact that the buffer is at least 2 chars
- // long, but the holding area "may be as small as 1" ???
- // And we need an additional \0, so let's keep this inefficient but
- // safe copy.
-
- // If c!=EOF, it is a character that must also be comsumed
- int xtra = c==EOF? 0 : 1;
-
- // Write temporary C-string to wxTextWindow
- {
- char *txt = new char[plen+xtra+1];
- memcpy(txt, pbase(), plen);
- txt[plen] = (char)c; // append c
- txt[plen+xtra] = '\0'; // append '\0' or overwrite c
- // If the put area already contained \0, output will be truncated there
- AppendText(txt);
- delete[] txt;
- }
-
- // Reset put area
- setp(pbase(), epptr());
-
-#if defined(__WATCOMC__)
- return __NOT_EOF;
-#elif defined(zapeof) // HP-UX (all cfront based?)
- return zapeof(c);
-#else
- return c!=EOF ? c : 0; // this should make everybody happy
-#endif
-}
projects / wxWidgets.git / blobdiff