fixed clipping issue

reactos/subsys/win32k/eng

diff -u -r1.5 -r1.6
--- gradient.c	24 Feb 2004 13:27:02 -0000	1.5
+++ gradient.c	21 Mar 2004 10:18:33 -0000	1.6
@@ -16,7 +16,7 @@

  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */

-/* $Id: gradient.c,v 1.5 2004/02/24 13:27:02 weiden Exp $

+/* $Id: gradient.c,v 1.6 2004/03/21 10:18:33 weiden Exp $

  * 
  * COPYRIGHT:         See COPYING in the top level directory
  * PROJECT:           ReactOS kernel

@@ -274,7 +274,7 @@

   FINITCOL(linefrom, lineto, 2); \
   for(g = sx[linefrom]; g != sx[lineto]; g += gxi) \
   { \

-    if(g >= FillRect.left && g < FillRect.right) \

+    if(InY && g >= FillRect.left && g < FillRect.right) \

     { \
       Color = XLATEOBJ_iXlate(pxlo, RGB(gc[0], gc[1], gc[2])); \
       OutputGDI->DIB_PutPixel(OutputObj, g, sy, Color); \

@@ -383,6 +383,8 @@

       {
         if(NtGdiIntersectRect(&FillRect, &RectEnum.arcl[i], prclExtents))
         {

+          BOOL InY;
+          

           DOINIT(v1, v3, 0);
           DOINIT(v1, v2, 1);
           DOINIT(v2, v3, 2);

@@ -393,6 +395,7 @@

           
           while(sy < bt)
           {

+            InY = !(sy < FillRect.top || sy >= FillRect.bottom);

             GOLINE(v1, v3, 0);
             DOLINE(v1, v3, 0);
             ENDLINE(v1, v3, 0);