Fix infinite loop bug in Fl_Text_Display::resize()...

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@2599 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

CHANGES

@@ -1,5 +1,7 @@
 CHANGES IN FLTK 1.1.0
 
+	- Fl_Text_Display::resize() could go into an infinite
+	  loop if the buffer is emptied.
 	- Fl::handle() didn't pass FL_RELEASE events to the
 	  grab() widget if pushed() was set (for proper menu
 	  handling...)

src/Fl_Text_Display.cxx

@@ -1,5 +1,5 @@
 //
-// "$Id: Fl_Text_Display.cxx,v 1.12.2.26 2002/08/15 17:26:46 easysw Exp $"
+// "$Id: Fl_Text_Display.cxx,v 1.12.2.27 2002/08/20 17:12:19 easysw Exp $"
 //
 // Copyright 2001-2002 by Bill Spitzak and others.
 // Original code Copyright Mark Edel.  Permission to distribute under
@@ -301,7 +301,7 @@ void Fl_Text_Display::resize(int X, int Y, int W, int H) {
     scroll_(mTopLineNumHint, mHorizOffsetHint);
 
   // everything will fit in the viewport
-  if (mNBufferLines < mNVisibleLines)
+  if (mNBufferLines < mNVisibleLines || mBuffer == NULL || mBuffer->length() == 0)
     scroll_(1, mHorizOffset);
   /* if empty lines become visible, there may be an opportunity to
      display more text by scrolling down */
@@ -1976,5 +1976,5 @@ int Fl_Text_Display::handle(int event) {
 
 
 //
-// End of "$Id: Fl_Text_Display.cxx,v 1.12.2.26 2002/08/15 17:26:46 easysw Exp $".
+// End of "$Id: Fl_Text_Display.cxx,v 1.12.2.27 2002/08/20 17:12:19 easysw Exp $".
 //