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Implement DCX_EXCLUDERGN and DCX_INTERSECTRGN

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svn path=/trunk/; revision=5155
This commit is contained in:
Gé van Geldorp 2003-07-17 21:25:11 +00:00
parent 6a672c7aec
commit 6b56586d3b
1 changed files with 51 additions and 8 deletions
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59
reactos/subsys/win32k/ntuser/windc.c
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@ -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: windc.c,v 1.15 2003/07/17 07:49:15 gvg Exp $
/* $Id: windc.c,v 1.16 2003/07/17 21:25:11 gvg Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -188,13 +188,33 @@ DceSetDrawable(PWINDOW_OBJECT WindowObject, HDC hDC, ULONG Flags,
dc->w.DCOrgX = WindowObject->ClientRect.left;
dc->w.DCOrgY = WindowObject->ClientRect.top;
}
/* FIXME: Offset by parent's client rectangle. */
}
DC_ReleasePtr(hDC);
}
STATIC VOID FASTCALL
DceDeleteClipRgn(DCE* Dce)
{
Dce->DCXFlags &= ~(DCX_EXCLUDERGN | DCX_INTERSECTRGN | DCX_WINDOWPAINT);
if (Dce->DCXFlags & DCX_KEEPCLIPRGN )
{
Dce->DCXFlags &= ~DCX_KEEPCLIPRGN;
}
else if (Dce->hClipRgn > (HRGN) 1)
{
W32kDeleteObject(Dce->hClipRgn);
}
Dce->hClipRgn = NULL;
/* make it dirty so that the vis rgn gets recomputed next time */
Dce->DCXFlags |= DCX_DCEDIRTY;
}
HDC STDCALL
NtUserGetDCEx(HWND hWnd, HANDLE hRegion, ULONG Flags)
NtUserGetDCEx(HWND hWnd, HANDLE ClipRegion, ULONG Flags)
{
PWINDOW_OBJECT Window;
ULONG DcxFlags;
@ -332,6 +352,24 @@ NtUserGetDCEx(HWND hWnd, HANDLE hRegion, ULONG Flags)
Dce->hClipRgn = NULL;
Dce->DCXFlags = DcxFlags | (Flags & DCX_WINDOWPAINT) | DCX_DCEBUSY;
if (0 == (Flags & (DCX_EXCLUDERGN | DCX_INTERSECTRGN)) && NULL != ClipRegion)
{
W32kDeleteObject(ClipRegion);
ClipRegion = NULL;
}
if (NULL != Dce->hClipRgn)
{
DceDeleteClipRgn(Dce);
}
if (NULL != ClipRegion)
{
Dce->hClipRgn = W32kCreateRectRgn(0, 0, 0, 0);
W32kCombineRgn(Dce->hClipRgn, ClipRegion, NULL, RGN_COPY);
W32kDeleteObject(ClipRegion);
}
DceSetDrawable(Window, Dce->hDC, Flags, UpdateClipOrigin);
if (UpdateVisRgn)
@ -378,15 +416,20 @@ NtUserGetDCEx(HWND hWnd, HANDLE hRegion, ULONG Flags)
}
}
if (0 != (Dce->DCXFlags & DCX_INTERSECTRGN))
{
W32kCombineRgn(hRgnVisible, hRgnVisible, Dce->hClipRgn, RGN_AND);
}
if (0 != (Dce->DCXFlags & DCX_EXCLUDERGN))
{
W32kCombineRgn(hRgnVisible, hRgnVisible, Dce->hClipRgn, RGN_DIFF);
}
Dce->DCXFlags &= ~DCX_DCEDIRTY;
W32kSelectVisRgn(Dce->hDC, hRgnVisible);
}
if (Flags & (DCX_EXCLUDERGN | DCX_INTERSECTRGN))
{
DPRINT1("FIXME.\n");
}
if (hRgnVisible != NULL)
{
W32kDeleteObject(hRgnVisible);