From 2e1eba889e1ed53bc18adeeefce084c43169d3ca Mon Sep 17 00:00:00 2001
From: Andreas Fabri <Andreas.Fabri@geometryfactory.com>
Date: Wed, 29 Mar 2006 07:51:47 +0000
Subject: [PATCH] Removed rounding for Gmpq as it may change orientation of
 points

---
 Qt_widget/changes.txt                 |  3 +++
 Qt_widget/include/CGAL/IO/Qt_widget.h | 21 ++-------------------
 Qt_widget/src/CGALQt/Qt_widget.C      | 16 ----------------
 3 files changed, 5 insertions(+), 35 deletions(-)

diff --git a/Qt_widget/changes.txt b/Qt_widget/changes.txt
index d417d263ce1..6c5a25725c3 100644
--- a/Qt_widget/changes.txt
+++ b/Qt_widget/changes.txt
@@ -1,3 +1,6 @@
+29 March 2006 Andreas Fabri
+- Removed rounding for Gmpq as it may change orientation of points
+
 09 March 2006 Joachim Reichel
 - LGPL copyright notice added to src/CGALQt/makefile
 
diff --git a/Qt_widget/include/CGAL/IO/Qt_widget.h b/Qt_widget/include/CGAL/IO/Qt_widget.h
index 180c343a288..2c4d05dc135 100644
--- a/Qt_widget/include/CGAL/IO/Qt_widget.h
+++ b/Qt_widget/include/CGAL/IO/Qt_widget.h
@@ -142,10 +142,7 @@ public:
   void x_real(int, FT&) const;
   template <class FT>
   void y_real(int y, FT&) const;
-#ifdef CGAL_USE_GMP
-  void x_real(int, Gmpq&) const;
-  void y_real(int, Gmpq&) const;
-#endif
+
 
   double x_real_dist(double d) const;
   double y_real_dist(double d) const;
@@ -764,14 +761,7 @@ void Qt_widget::x_real(int x, FT& return_t) const
   if(xscal<1)
     return_t = static_cast<FT>(xmin+(int)(x/xscal));
   else{
-#ifdef CGAL_USE_GMP
-    CGAL_Rational r = simplest_rational_in_interval<CGAL_Rational>( 
-                            xmin+x/xscal-(x/xscal-(x-1)/xscal)/2, 
-                            xmin+x/xscal+((x+1)/xscal-x/xscal)/2);
-    return_t = static_cast<FT>(CGAL::to_double(r));
-#else
     return_t = static_cast<FT>(xmin+x/xscal);
-#endif
   }
 }
 
@@ -781,14 +771,7 @@ void Qt_widget::y_real(int y, FT& return_t) const
     if(yscal<1)
       return_t = static_cast<FT>(ymax-(int)(y/yscal));
     else{
-#ifdef CGAL_USE_GMP
-    CGAL_Rational r = simplest_rational_in_interval<CGAL_Rational>( 
-                            ymax - y/yscal-(y/yscal-(y-1)/yscal)/2, 
-                            ymax - y/yscal+((y+1)/yscal-y/yscal)/2);
-    return_t = static_cast<FT>(CGAL::to_double(r));
-#else
-    return_t = static_cast<FT>(ymax-y/yscal);
-#endif
+      return_t = static_cast<FT>(ymax-y/yscal);
   }  
 }
 
diff --git a/Qt_widget/src/CGALQt/Qt_widget.C b/Qt_widget/src/CGALQt/Qt_widget.C
index d96c1170fdd..b4be49b2605 100644
--- a/Qt_widget/src/CGALQt/Qt_widget.C
+++ b/Qt_widget/src/CGALQt/Qt_widget.C
@@ -404,22 +404,6 @@ void Qt_widget::zoom(double ratio)
        ymin + (ymax - ymin) / 2 );
 }
 
-#ifdef CGAL_USE_GMP
-void Qt_widget::x_real(int x, Gmpq& return_t) const
-{
-  return_t = simplest_rational_in_interval<Gmpq>( 
-                  xmin+x/xscal-(1/xscal)/2,
-                  xmin+x/xscal+(1/xscal)/2);
-}
-
-void Qt_widget::y_real(int y, Gmpq& return_t) const
-{
-  return_t = simplest_rational_in_interval<Gmpq>( 
-                  ymax - y/yscal-(1/yscal)/2,
-                  ymax - y/yscal+(1/yscal)/2);
-}
-#endif
-
 double Qt_widget::x_real(int x) const
 {
   if(xscal<1)