+++ /dev/null
-/*
- * ReactOS W32 Subsystem
- * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-/* $Id$ */
-
-#include <w32k.h>
-
-#define NDEBUG
-#include <debug.h>
-
-int FASTCALL
-CLIPPING_UpdateGCRegion(DC* Dc)
-{
- PROSRGNDATA CombinedRegion;
-
- if (Dc->w.hGCClipRgn == NULL)
- Dc->w.hGCClipRgn = NtGdiCreateRectRgn(0, 0, 0, 0);
-
- if (Dc->w.hClipRgn == NULL)
- NtGdiCombineRgn(Dc->w.hGCClipRgn, Dc->w.hVisRgn, 0, RGN_COPY);
- else
- NtGdiCombineRgn(Dc->w.hGCClipRgn, Dc->w.hClipRgn, Dc->w.hVisRgn, RGN_AND);
- NtGdiOffsetRgn(Dc->w.hGCClipRgn, Dc->w.DCOrgX, Dc->w.DCOrgY);
-
- if((CombinedRegion = RGNDATA_LockRgn(Dc->w.hGCClipRgn)))
- {
- if (Dc->CombinedClip != NULL)
- IntEngDeleteClipRegion(Dc->CombinedClip);
-
- Dc->CombinedClip = IntEngCreateClipRegion(
- CombinedRegion->rdh.nCount,
- (PRECTL)CombinedRegion->Buffer,
- (PRECTL)&CombinedRegion->rdh.rcBound);
-
- RGNDATA_UnlockRgn(CombinedRegion);
- }
-
- if ( NULL == Dc->CombinedClip )
- {
- DPRINT1("IntEngCreateClipRegion() failed\n");
- return ERROR;
- }
-
- return NtGdiOffsetRgn(Dc->w.hGCClipRgn, -Dc->w.DCOrgX, -Dc->w.DCOrgY);
-}
-
-INT STDCALL
-NtGdiSelectVisRgn(HDC hdc, HRGN hrgn)
-{
- int retval;
- DC *dc;
-
- if (!hrgn)
- {
- SetLastWin32Error(ERROR_INVALID_PARAMETER);
- return ERROR;
- }
- if (!(dc = DC_LockDc(hdc)))
- {
- SetLastWin32Error(ERROR_INVALID_HANDLE);
- return ERROR;
- }
-
- dc->w.flags &= ~DC_DIRTY;
-
- if (dc->w.hVisRgn == NULL)
- {
- dc->w.hVisRgn = NtGdiCreateRectRgn(0, 0, 0, 0);
- GDIOBJ_CopyOwnership(hdc, dc->w.hVisRgn);
- }
- else
- {
- NtGdiOffsetRgn(dc->w.hVisRgn, dc->w.DCOrgX, dc->w.DCOrgY);
- }
-
- retval = NtGdiCombineRgn(dc->w.hVisRgn, hrgn, 0, RGN_COPY);
- if ( retval != ERROR )
- {
- NtGdiOffsetRgn(dc->w.hVisRgn, -dc->w.DCOrgX, -dc->w.DCOrgY);
- CLIPPING_UpdateGCRegion(dc);
- }
- DC_UnlockDc(dc);
-
- return retval;
-}
-
-
-int STDCALL IntGdiExtSelectClipRgn(PDC dc,
- HRGN hrgn,
- int fnMode)
-{
- int retval;
- // dc->w.flags &= ~DC_DIRTY;
-
- if (!hrgn)
- {
- if (fnMode == RGN_COPY)
- {
- if (dc->w.hClipRgn != NULL)
- {
- NtGdiDeleteObject(dc->w.hClipRgn);
- dc->w.hClipRgn = NULL;
- retval = NULLREGION;
- }
- }
- else
- {
- SetLastWin32Error(ERROR_INVALID_PARAMETER);
- return ERROR;
- }
- }
- else
- {
- if (!dc->w.hClipRgn)
- {
- PROSRGNDATA Rgn;
- RECT rect;
- if((Rgn = RGNDATA_LockRgn(dc->w.hVisRgn)))
- {
- UnsafeIntGetRgnBox(Rgn, &rect);
- RGNDATA_UnlockRgn(Rgn);
- dc->w.hClipRgn = UnsafeIntCreateRectRgnIndirect(&rect);
- }
- else
- {
- dc->w.hClipRgn = NtGdiCreateRectRgn(0, 0, 0, 0);
- }
- }
- if(fnMode == RGN_COPY)
- {
- NtGdiCombineRgn(dc->w.hClipRgn, hrgn, 0, fnMode);
- }
- else
- NtGdiCombineRgn(dc->w.hClipRgn, dc->w.hClipRgn, hrgn, fnMode);
- }
-
- retval = CLIPPING_UpdateGCRegion(dc);
- return retval;
-}
-
-
-int STDCALL NtGdiExtSelectClipRgn(HDC hDC,
- HRGN hrgn,
- int fnMode)
-{
- int retval;
- DC *dc;
-
- if (!(dc = DC_LockDc(hDC)))
- {
- SetLastWin32Error(ERROR_INVALID_HANDLE);
- return ERROR;
- }
-
- retval = IntGdiExtSelectClipRgn ( dc, hrgn, fnMode );
-
- DC_UnlockDc(dc);
- return retval;
-}
-
-INT FASTCALL
-IntGdiGetClipBox(HDC hDC, LPRECT rc)
-{
- PROSRGNDATA Rgn;
- INT retval;
- PDC dc;
-
- if (!(dc = DC_LockDc(hDC)))
- {
- SetLastWin32Error(ERROR_INVALID_HANDLE);
- return ERROR;
- }
-
- if (!(Rgn = RGNDATA_LockRgn(dc->w.hGCClipRgn)))
- {
- DC_UnlockDc(dc);
- SetLastWin32Error(ERROR_INVALID_HANDLE);
- return ERROR;
- }
- retval = UnsafeIntGetRgnBox(Rgn, rc);
- RGNDATA_UnlockRgn(Rgn);
- IntDPtoLP(dc, (LPPOINT)rc, 2);
- DC_UnlockDc(dc);
-
- return retval;
-}
-
-int STDCALL NtGdiGetClipBox(HDC hDC,
- LPRECT rc)
-{
- int Ret;
- NTSTATUS Status = STATUS_SUCCESS;
- RECT Saferect;
-
- Ret = IntGdiGetClipBox(hDC, &Saferect);
-
- _SEH_TRY
- {
- ProbeForWrite(rc,
- sizeof(RECT),
- 1);
- *rc = Saferect;
- }
- _SEH_HANDLE
- {
- Status = _SEH_GetExceptionCode();
- }
- _SEH_END;
-
- if(!NT_SUCCESS(Status))
- {
-
- SetLastNtError(Status);
- return ERROR;
- }
-
- return Ret;
-}
-
-int STDCALL NtGdiGetMetaRgn(HDC hDC,
- HRGN hrgn)
-{
- UNIMPLEMENTED;
- return 0;
-}
-
-int STDCALL NtGdiExcludeClipRect(HDC hDC,
- int LeftRect,
- int TopRect,
- int RightRect,
- int BottomRect)
-{
- INT Result;
- RECT Rect;
- HRGN NewRgn;
- PDC dc = DC_LockDc(hDC);
-
- if (!dc)
- {
- SetLastWin32Error(ERROR_INVALID_HANDLE);
- return ERROR;
- }
-
- Rect.left = LeftRect;
- Rect.top = TopRect;
- Rect.right = RightRect;
- Rect.bottom = BottomRect;
-
- IntLPtoDP(dc, (LPPOINT)&Rect, 2);
-
- NewRgn = UnsafeIntCreateRectRgnIndirect(&Rect);
- if (!NewRgn)
- {
- Result = ERROR;
- }
- else
- {
- if (!dc->w.hClipRgn)
- {
- dc->w.hClipRgn = NtGdiCreateRectRgn(0, 0, 0, 0);
- NtGdiCombineRgn(dc->w.hClipRgn, dc->w.hVisRgn, NewRgn, RGN_DIFF);
- Result = SIMPLEREGION;
- }
- else
- {
- Result = NtGdiCombineRgn(dc->w.hClipRgn, dc->w.hClipRgn, NewRgn, RGN_DIFF);
- }
- NtGdiDeleteObject(NewRgn);
- }
- if (Result != ERROR)
- CLIPPING_UpdateGCRegion(dc);
-
- DC_UnlockDc(dc);
-
- return Result;
-}
-
-int STDCALL NtGdiIntersectClipRect(HDC hDC,
- int LeftRect,
- int TopRect,
- int RightRect,
- int BottomRect)
-{
- INT Result;
- RECT Rect;
- HRGN NewRgn;
- PDC dc = DC_LockDc(hDC);
-
- DPRINT("NtGdiIntersectClipRect(%x, %d,%d-%d,%d)\n",
- hDC, LeftRect, TopRect, RightRect, BottomRect);
-
- if (!dc)
- {
- SetLastWin32Error(ERROR_INVALID_HANDLE);
- return ERROR;
- }
-
- Rect.left = LeftRect;
- Rect.top = TopRect;
- Rect.right = RightRect;
- Rect.bottom = BottomRect;
-
- IntLPtoDP(dc, (LPPOINT)&Rect, 2);
-
- NewRgn = UnsafeIntCreateRectRgnIndirect(&Rect);
- if (!NewRgn)
- {
- Result = ERROR;
- }
- else if (!dc->w.hClipRgn)
- {
- dc->w.hClipRgn = NewRgn;
- Result = SIMPLEREGION;
- }
- else
- {
- Result = NtGdiCombineRgn(dc->w.hClipRgn, dc->w.hClipRgn, NewRgn, RGN_AND);
- NtGdiDeleteObject(NewRgn);
- }
- if (Result != ERROR)
- CLIPPING_UpdateGCRegion(dc);
-
- DC_UnlockDc(dc);
-
- return Result;
-}
-
-int STDCALL NtGdiOffsetClipRgn(HDC hDC,
- int XOffset,
- int YOffset)
-{
- INT Result;
- DC *dc;
-
- if(!(dc = DC_LockDc(hDC)))
- {
- SetLastWin32Error(ERROR_INVALID_HANDLE);
- return ERROR;
- }
-
- if(dc->w.hClipRgn != NULL)
- {
- Result = NtGdiOffsetRgn(dc->w.hClipRgn,
- XOffset,
- YOffset);
- CLIPPING_UpdateGCRegion(dc);
- }
- else
- {
- Result = NULLREGION;
- }
-
- DC_UnlockDc(dc);
- return Result;
-}
-
-BOOL STDCALL NtGdiPtVisible(HDC hDC,
- int X,
- int Y)
-{
- HRGN rgn;
- DC *dc;
-
- if(!(dc = DC_LockDc(hDC)))
- {
- SetLastWin32Error(ERROR_INVALID_HANDLE);
- return FALSE;
- }
-
- rgn = dc->w.hGCClipRgn;
- DC_UnlockDc(dc);
-
- return (rgn ? NtGdiPtInRegion(rgn, X, Y) : FALSE);
-}
-
-BOOL STDCALL NtGdiRectVisible(HDC hDC,
- CONST PRECT UnsafeRect)
-{
- NTSTATUS Status = STATUS_SUCCESS;
- PROSRGNDATA Rgn;
- PDC dc = DC_LockDc(hDC);
- BOOL Result = FALSE;
- RECT Rect;
-
- if (!dc)
- {
- SetLastWin32Error(ERROR_INVALID_HANDLE);
- return FALSE;
- }
-
- _SEH_TRY
- {
- ProbeForRead(UnsafeRect,
- sizeof(RECT),
- 1);
- Rect = *UnsafeRect;
- }
- _SEH_HANDLE
- {
- Status = _SEH_GetExceptionCode();
- }
- _SEH_END;
-
- if(!NT_SUCCESS(Status))
- {
- DC_UnlockDc(dc);
- SetLastNtError(Status);
- return FALSE;
- }
-
- if (dc->w.hGCClipRgn)
- {
- if((Rgn = (PROSRGNDATA)RGNDATA_LockRgn(dc->w.hGCClipRgn)))
- {
- IntLPtoDP(dc, (LPPOINT)&Rect, 2);
- Result = UnsafeIntRectInRegion(Rgn, &Rect);
- RGNDATA_UnlockRgn(Rgn);
- }
- }
- DC_UnlockDc(dc);
-
- return Result;
-}
-
-INT STDCALL
-NtGdiSelectClipRgn(HDC hDC, HRGN hRgn)
-{
- return NtGdiExtSelectClipRgn(hDC, hRgn, RGN_COPY);
-}
-
-int STDCALL NtGdiSetMetaRgn(HDC hDC)
-{
- UNIMPLEMENTED;
- return 0;
-}
-
-/* EOF */
projects / reactos.git / blobdiff