Hopefully fixed all cases of the perspective tool preview breaking with

2004-10-27  Philip Lafleur <plafleur@cvs.gnome.org>

	* app/display/gimpdisplayshell-preview.c: Hopefully fixed all cases
	of the perspective tool preview breaking with certain orientations.

ChangeLog

+2004-10-27  Philip Lafleur <plafleur@cvs.gnome.org>
+
+	* app/display/gimpdisplayshell-preview.c: Hopefully fixed all cases
+	of the perspective tool preview breaking with certain orientations.
+
 2004-10-27  Manish Singh  <yosh@gimp.org>
 	* tools/pdbgen/enumcode.pl: Don't declare $first twice.

app/display/gimpdisplayshell-preview.c

@@ -306,8 +306,12 @@ gimp_display_shell_draw_quad (GimpDrawable *texture,
           } \
 
 
-  if (((x [0] > x [1]) && (x [3] > x [2])) ||
-      ((x [0] < x [1]) && (x [3] < x [2])))
+  if ((((x [0] > x [1]) && (x [3] > x [2])) ||
+       ((x [0] < x [1]) && (x [3] < x [2]))) &&
+      (! (((x [0] > x [2]) && (x [0] < x [1]) && (x [3] < x [2])) ||
+          ((x [0] < x [2]) && (x [0] > x [1]) && (x [3] > x [2])) ||
+          ((x [3] > x [1]) && (x [3] < x [2]) && (x [0] < x [1])) ||
+          ((x [3] < x [1]) && (x [3] > x [2]) && (x [0] > x [2])))))
     {
       /*
        *     v0