Fix issue 57: Missing refresh in the cross points for the 4-point splines.

Also fixed the display of the bottom-right corner of the spline itself.
Grad rectangle: The vector line is now drawn as XOR: dragging it no longer erases the screen.
SFont.c: Only removed TAB characters in source.


git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@418 416bcca6-2ee7-4201-b75f-2eb2f807beb1

graph.c

@@ -1427,7 +1427,7 @@ void Tracer_courbe_General(short X1, short Y1,
   Y = Min(Min(Y1,Y2),Min(Y3,Y4));
   Old_X = Max(Max(X1,X2),Max(X3,X4)) - X;
   Old_Y = Max(Max(Y1,Y2),Max(Y3,Y4)) - Y;
-  Mettre_Ecran_A_Jour(X,Y,Old_X,Old_Y);
+  Mettre_Ecran_A_Jour(X,Y,Old_X+1,Old_Y+1);
 }
 
   // -- Tracer une courbe de Bézier définitivement --