INT FASTCALL
GdiGetClipBox(HDC hDC, PRECTL rc)
{
INT retval;
PDC dc;
PROSRGNDATA pRgnNew, pRgn = NULL;
BOOL Unlock = FALSE; //Small hack
if (!(dc = DC_LockDc(hDC)))
{
return ERROR;
}
/* FIXME! Rao and Vis only! */
if (dc->prgnAPI) // APIRGN
{
pRgn = dc->prgnAPI;
}
else if (dc->dclevel.prgnMeta) // METARGN
{
pRgn = dc->dclevel.prgnMeta;
}
else if (dc->rosdc.hClipRgn)
{
Unlock = TRUE ;
pRgn = REGION_LockRgn(dc->rosdc.hClipRgn); // CLIPRGN
}
if (pRgn)
{
pRgnNew = IntSysCreateRectpRgn( 0, 0, 0, 0 );
if (!pRgnNew)
{
DC_UnlockDc(dc);
if(Unlock) REGION_UnlockRgn(pRgn);
return ERROR;
}
IntGdiCombineRgn(pRgnNew, dc->prgnVis, pRgn, RGN_AND);
retval = REGION_GetRgnBox(pRgnNew, rc);
REGION_Delete(pRgnNew);
DC_UnlockDc(dc);
if(Unlock) REGION_UnlockRgn(pRgn);
return retval;
}
retval = REGION_GetRgnBox(dc->prgnVis, rc);
IntDPtoLP(dc, (LPPOINT)rc, 2);
DC_UnlockDc(dc);
return retval;
}
INT
FASTCALL
GdiGetClipBox(
_In_ HDC hdc,
_Out_ LPRECT prc)
{
PDC pdc;
INT iComplexity;
/* Lock the DC */
pdc = DC_LockDc(hdc);
if (!pdc)
{
return ERROR;
}
/* Update RAO region if necessary */
if (pdc->fs & DC_FLAG_DIRTY_RAO)
CLIPPING_UpdateGCRegion(pdc);
/* Check if we have a RAO region (intersection of API and VIS region) */
if (pdc->prgnRao)
{
/* We have a RAO region, use it */
iComplexity = REGION_GetRgnBox(pdc->prgnRao, prc);
}
else
{
/* No RAO region means no API region, so use the VIS region */
ASSERT(pdc->prgnVis);
iComplexity = REGION_GetRgnBox(pdc->prgnVis, prc);
}
/* Unlock the DC */
DC_UnlockDc(pdc);
/* Convert the rect to logical coordinates */
IntDPtoLP(pdc, (LPPOINT)prc, 2);
/* Return the complexity */
return iComplexity;
}
int FASTCALL GdiExtSelectClipRgn(PDC dc,
HRGN hrgn,
int fnMode)
{
// dc->fs &= ~DC_FLAG_DIRTY_RAO;
if (!hrgn)
{
if (fnMode == RGN_COPY)
{
if (dc->rosdc.hClipRgn != NULL)
{
GreDeleteObject(dc->rosdc.hClipRgn);
dc->rosdc.hClipRgn = NULL;
}
}
else
{
EngSetLastError(ERROR_INVALID_PARAMETER);
return ERROR;
}
}
else
{
if (!dc->rosdc.hClipRgn)
{
RECTL rect;
if(dc->prgnVis)
{
REGION_GetRgnBox(dc->prgnVis, &rect);
dc->rosdc.hClipRgn = IntSysCreateRectRgnIndirect(&rect);
}
else
{
dc->rosdc.hClipRgn = IntSysCreateRectRgn(0, 0, 0, 0);
}
}
if(fnMode == RGN_COPY)
{
NtGdiCombineRgn(dc->rosdc.hClipRgn, hrgn, 0, fnMode);
}
else
NtGdiCombineRgn(dc->rosdc.hClipRgn, dc->rosdc.hClipRgn, hrgn, fnMode);
}
return CLIPPING_UpdateGCRegion(dc);
}
int
FASTCALL
IntGdiExtSelectClipRgn(
PDC dc,
PREGION prgn,
int fnMode)
{
if (fnMode == RGN_COPY)
{
if (!prgn)
{
if (dc->dclevel.prgnClip != NULL)
{
REGION_Delete(dc->dclevel.prgnClip);
dc->dclevel.prgnClip = NULL;
dc->fs |= DC_FLAG_DIRTY_RAO;
}
return SIMPLEREGION;
}
if (!dc->dclevel.prgnClip)
dc->dclevel.prgnClip = IntSysCreateRectpRgn(0, 0, 0, 0);
dc->fs |= DC_FLAG_DIRTY_RAO;
return IntGdiCombineRgn(dc->dclevel.prgnClip, prgn, NULL, RGN_COPY);
}
ASSERT(prgn != NULL);
if (!dc->dclevel.prgnClip)
{
RECTL rect;
REGION_GetRgnBox(dc->prgnVis, &rect);
dc->dclevel.prgnClip = IntSysCreateRectpRgnIndirect(&rect);
}
dc->fs |= DC_FLAG_DIRTY_RAO;
return IntGdiCombineRgn(dc->dclevel.prgnClip, dc->dclevel.prgnClip, prgn, fnMode);
}
BOOL APIENTRY
NtGdiExtFloodFill(
HDC hDC,
INT XStart,
INT YStart,
COLORREF Color,
UINT FillType)
{
PDC dc;
#if 0
PDC_ATTR pdcattr;
#endif
SURFACE *psurf;
EXLATEOBJ exlo;
BOOL Ret = FALSE;
RECTL DestRect;
POINTL Pt;
ULONG ConvColor;
dc = DC_LockDc(hDC);
if (!dc)
{
EngSetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
if (dc->dctype == DC_TYPE_INFO)
{
DC_UnlockDc(dc);
/* Yes, Windows really returns TRUE in this case */
return TRUE;
}
if (!dc->dclevel.pSurface)
{
Ret = FALSE;
goto cleanup;
}
#if 0
pdcattr = dc->pdcattr;
#endif
Pt.x = XStart;
Pt.y = YStart;
IntLPtoDP(dc, (LPPOINT)&Pt, 1);
DC_vPrepareDCsForBlit(dc, &DestRect, NULL, NULL);
/// FIXME: what about prgnVIS? And what about REAL clipping?
psurf = dc->dclevel.pSurface;
if (dc->prgnRao)
{
Ret = REGION_PtInRegion(dc->prgnRao, Pt.x, Pt.y);
if (Ret)
REGION_GetRgnBox(dc->prgnRao, (LPRECT)&DestRect);
else
{
DC_vFinishBlit(dc, NULL);
goto cleanup;
}
}
else
{
RECTL_vSetRect(&DestRect, 0, 0, psurf->SurfObj.sizlBitmap.cx, psurf->SurfObj.sizlBitmap.cy);
}
EXLATEOBJ_vInitialize(&exlo, &gpalRGB, psurf->ppal, 0, 0xffffff, 0);
/* Only solid fills supported for now
* How to support pattern brushes and non standard surfaces (not offering dib functions):
* Version a (most likely slow): call DrvPatBlt for every pixel
* Version b: create a flood mask and let MaskBlt blit a masked brush */
ConvColor = XLATEOBJ_iXlate(&exlo.xlo, Color);
Ret = DIB_XXBPP_FloodFillSolid(&psurf->SurfObj, &dc->eboFill.BrushObject, &DestRect, &Pt, ConvColor, FillType);
DC_vFinishBlit(dc, NULL);
EXLATEOBJ_vCleanup(&exlo);
cleanup:
DC_UnlockDc(dc);
return Ret;
}
/* NtUserEnumDisplayMonitors
*
* Enumerates display monitors which intersect the given HDC/cliprect
*
* Arguments
*
* hDC
* Handle to a DC for which to enum intersecting monitors. If this is NULL
* it returns all monitors which are part of the current virtual screen.
*
* pRect
* Clipping rectangle with coordinate system origin at the DCs origin if the
* given HDC is not NULL or in virtual screen coordinated if it is NULL.
* Can be NULL
*
* hMonitorList
* Pointer to an array of HMONITOR which is filled with monitor handles.
* Can be NULL
*
* monitorRectList
* Pointer to an array of RECT which is filled with intersection rectangles.
* Can be NULL
*
* listSize
* Size of the hMonitorList and monitorRectList arguments. If this is zero
* hMonitorList and monitorRectList are ignored.
*
* Returns
* The number of monitors which intersect the specified region or -1 on failure.
*/
INT
APIENTRY
NtUserEnumDisplayMonitors(
OPTIONAL IN HDC hDC,
OPTIONAL IN LPCRECTL pRect,
OPTIONAL OUT HMONITOR *hMonitorList,
OPTIONAL OUT PRECTL monitorRectList,
OPTIONAL IN DWORD listSize)
{
INT numMonitors, i;
HMONITOR *safeHMonitorList = NULL;
PRECTL safeRectList = NULL;
RECTL rect, *myRect;
RECTL dcRect;
NTSTATUS status;
/* get rect */
if (pRect != NULL)
{
status = MmCopyFromCaller(&rect, pRect, sizeof (RECT));
if (!NT_SUCCESS(status))
{
TRACE("MmCopyFromCaller() failed!\n");
SetLastNtError(status);
return -1;
}
}
if (hDC != NULL)
{
PDC dc;
INT regionType;
/* get visible region bounding rect */
dc = DC_LockDc(hDC);
if (dc == NULL)
{
TRACE("DC_LockDc() failed!\n");
/* FIXME: setlasterror? */
return -1;
}
regionType = REGION_GetRgnBox(dc->prgnVis, &dcRect);
DC_UnlockDc(dc);
if (regionType == 0)
{
TRACE("NtGdiGetRgnBox() failed!\n");
return -1;
}
if (regionType == NULLREGION)
return 0;
if (regionType == COMPLEXREGION)
{
/* TODO: warning */
}
/* if hDC and pRect are given the area of interest is pRect with
coordinate origin at the DC position */
if (pRect != NULL)
{
rect.left += dcRect.left;
rect.right += dcRect.left;
rect.top += dcRect.top;
rect.bottom += dcRect.top;
}
/* if hDC is given and pRect is not the area of interest is the
bounding rect of hDC */
else
{
rect = dcRect;
}
}
if (hDC == NULL && pRect == NULL)
myRect = NULL;
else
myRect = ▭
/* find intersecting monitors */
numMonitors = IntGetMonitorsFromRect(myRect, NULL, NULL, 0, 0);
if (numMonitors == 0 || listSize == 0 ||
(hMonitorList == NULL && monitorRectList == NULL))
{
TRACE("numMonitors = %d\n", numMonitors);
return numMonitors;
}
if (hMonitorList != NULL && listSize != 0)
{
safeHMonitorList = ExAllocatePoolWithTag(PagedPool, sizeof (HMONITOR) * listSize, USERTAG_MONITORRECTS);
if (safeHMonitorList == NULL)
{
/* FIXME: EngSetLastError? */
return -1;
}
}
if (monitorRectList != NULL && listSize != 0)
{
safeRectList = ExAllocatePoolWithTag(PagedPool, sizeof (RECT) * listSize, USERTAG_MONITORRECTS);
if (safeRectList == NULL)
{
ExFreePoolWithTag(safeHMonitorList, USERTAG_MONITORRECTS);
/* FIXME: EngSetLastError? */
return -1;
}
}
/* get intersecting monitors */
numMonitors = IntGetMonitorsFromRect(myRect, safeHMonitorList, safeRectList,
listSize, 0 );
if (hDC != NULL && pRect != NULL && safeRectList != NULL)
for (i = 0; i < numMonitors; i++)
{
safeRectList[i].left -= dcRect.left;
safeRectList[i].right -= dcRect.left;
safeRectList[i].top -= dcRect.top;
safeRectList[i].bottom -= dcRect.top;
}
/* output result */
if (hMonitorList != NULL && listSize != 0)
{
status = MmCopyToCaller(hMonitorList, safeHMonitorList, sizeof (HMONITOR) * listSize);
ExFreePool(safeHMonitorList);
if (!NT_SUCCESS(status))
{
ExFreePoolWithTag(safeRectList, USERTAG_MONITORRECTS);
SetLastNtError(status);
return -1;
}
}
if (monitorRectList != NULL && listSize != 0)
{
status = MmCopyToCaller(monitorRectList, safeRectList, sizeof (RECT) * listSize);
ExFreePoolWithTag(safeRectList, USERTAG_MONITORRECTS);
if (!NT_SUCCESS(status))
{
SetLastNtError(status);
return -1;
}
}
return numMonitors;
}
/* NtUserEnumDisplayMonitors
*
* Enumerates display monitors which intersect the given HDC/cliprect
*
* Arguments
*
* hdc
* Handle to a DC for which to enum intersecting monitors. If this is NULL
* it returns all monitors which are part of the current virtual screen.
*
* pUnsafeRect
* Clipping rectangle with coordinate system origin at the DCs origin if the
* given HDC is not NULL or in virtual screen coordinated if it is NULL.
* Can be NULL
*
* phUnsafeMonitorList
* Pointer to an array of HMONITOR which is filled with monitor handles.
* Can be NULL
*
* prcUnsafeMonitorList
* Pointer to an array of RECT which is filled with intersection rectangles.
* Can be NULL
*
* dwListSize
* Size of the hMonitorList and monitorRectList arguments. If this is zero
* hMonitorList and monitorRectList are ignored.
*
* Returns
* The number of monitors which intersect the specified region or -1 on failure.
*/
INT
APIENTRY
NtUserEnumDisplayMonitors(
OPTIONAL IN HDC hdc,
OPTIONAL IN LPCRECTL pUnsafeRect,
OPTIONAL OUT HMONITOR *phUnsafeMonitorList,
OPTIONAL OUT PRECTL prcUnsafeMonitorList,
OPTIONAL IN DWORD dwListSize)
{
INT cMonitors, iRet = -1, i;
HMONITOR *phMonitorList = NULL;
PRECTL prcMonitorList = NULL;
RECTL rc, *pRect;
RECTL DcRect = {0};
NTSTATUS Status;
/* Get rectangle */
if (pUnsafeRect != NULL)
{
Status = MmCopyFromCaller(&rc, pUnsafeRect, sizeof(RECT));
if (!NT_SUCCESS(Status))
{
TRACE("MmCopyFromCaller() failed!\n");
SetLastNtError(Status);
return -1;
}
}
if (hdc != NULL)
{
PDC pDc;
INT iRgnType;
/* Get visible region bounding rect */
pDc = DC_LockDc(hdc);
if (pDc == NULL)
{
TRACE("DC_LockDc() failed!\n");
/* FIXME: setlasterror? */
return -1;
}
iRgnType = REGION_GetRgnBox(pDc->prgnVis, &DcRect);
DC_UnlockDc(pDc);
if (iRgnType == 0)
{
TRACE("NtGdiGetRgnBox() failed!\n");
return -1;
}
if (iRgnType == NULLREGION)
return 0;
if (iRgnType == COMPLEXREGION)
{
/* TODO: Warning */
}
/* If hdc and pRect are given the area of interest is pRect with
coordinate origin at the DC position */
if (pUnsafeRect != NULL)
{
rc.left += DcRect.left;
rc.right += DcRect.left;
rc.top += DcRect.top;
rc.bottom += DcRect.top;
}
/* If hdc is given and pRect is not the area of interest is the
bounding rect of hdc */
else
{
rc = DcRect;
}
}
if (hdc == NULL && pUnsafeRect == NULL)
pRect = NULL;
else
pRect = &rc;
UserEnterShared();
/* Find intersecting monitors */
cMonitors = IntGetMonitorsFromRect(pRect, NULL, NULL, 0, MONITOR_DEFAULTTONULL);
if (cMonitors == 0 || dwListSize == 0 ||
(phUnsafeMonitorList == NULL && prcUnsafeMonitorList == NULL))
{
/* Simple case - just return monitors count */
TRACE("cMonitors = %d\n", cMonitors);
iRet = cMonitors;
goto cleanup;
}
/* Allocate safe buffers */
if (phUnsafeMonitorList != NULL && dwListSize != 0)
{
phMonitorList = ExAllocatePoolWithTag(PagedPool, sizeof (HMONITOR) * dwListSize, USERTAG_MONITORRECTS);
if (phMonitorList == NULL)
{
EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
goto cleanup;
}
}
if (prcUnsafeMonitorList != NULL && dwListSize != 0)
{
prcMonitorList = ExAllocatePoolWithTag(PagedPool, sizeof (RECT) * dwListSize, USERTAG_MONITORRECTS);
if (prcMonitorList == NULL)
{
EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
goto cleanup;
}
}
/* Get intersecting monitors */
cMonitors = IntGetMonitorsFromRect(pRect, phMonitorList, prcMonitorList,
dwListSize, MONITOR_DEFAULTTONULL);
if (hdc != NULL && pRect != NULL && prcMonitorList != NULL)
for (i = 0; i < cMonitors; i++)
{
prcMonitorList[i].left -= DcRect.left;
prcMonitorList[i].right -= DcRect.left;
prcMonitorList[i].top -= DcRect.top;
prcMonitorList[i].bottom -= DcRect.top;
}
/* Output result */
if (phUnsafeMonitorList != NULL && dwListSize != 0)
{
Status = MmCopyToCaller(phUnsafeMonitorList, phMonitorList, sizeof(HMONITOR) * dwListSize);
if (!NT_SUCCESS(Status))
{
SetLastNtError(Status);
goto cleanup;
}
}
if (prcUnsafeMonitorList != NULL && dwListSize != 0)
{
Status = MmCopyToCaller(prcUnsafeMonitorList, prcMonitorList, sizeof(RECT) * dwListSize);
if (!NT_SUCCESS(Status))
{
SetLastNtError(Status);
goto cleanup;
}
}
/* Return monitors count on success */
iRet = cMonitors;
cleanup:
if (phMonitorList)
ExFreePoolWithTag(phMonitorList, USERTAG_MONITORRECTS);
if (prcMonitorList)
ExFreePoolWithTag(prcMonitorList, USERTAG_MONITORRECTS);
UserLeave();
return iRet;
}
DWORD
APIENTRY
NtGdiGetBoundsRect(
IN HDC hdc,
OUT LPRECT prc,
IN DWORD flags)
{
DWORD ret;
PDC pdc;
RECT rc;
/* Lock the DC */
if (!(pdc = DC_LockDc(hdc))) return 0;
if (!(flags & DCB_WINDOWMGR))
{
rc = pdc->erclBoundsApp;
if (RECTL_bIsEmptyRect(&rc))
{
rc.left = rc.top = rc.right = rc.bottom = 0;
ret = DCB_RESET;
}
else
{
RECTL rcRgn;
if (pdc->fs & DC_FLAG_DIRTY_RAO) CLIPPING_UpdateGCRegion(pdc);
if(!REGION_GetRgnBox(pdc->prgnRao, &rcRgn))
{
REGION_GetRgnBox(pdc->prgnVis, &rcRgn);
}
rc.left = max( rc.left, 0 );
rc.top = max( rc.top, 0 );
rc.right = min( rc.right, rcRgn.right - rcRgn.left );
rc.bottom = min( rc.bottom, rcRgn.bottom - rcRgn.top );
DPRINT("Rao dc %p r %d b %d\n",pdc,rcRgn.right - rcRgn.left, rcRgn.bottom - rcRgn.top);
DPRINT("rc l %d t %d\n",rc.left,rc.top);
DPRINT(" r %d b %d\n",rc.right,rc.bottom);
ret = DCB_SET;
}
IntDPtoLP( pdc, &rc, 2 );
DPRINT("rc1 l %d t %d\n",rc.left,rc.top);
DPRINT(" r %d b %d\n",rc.right,rc.bottom);
}
else
{
rc = pdc->erclBounds;
ret = DCB_SET;
}
/* Copy the rect to the caller */
_SEH2_TRY
{
ProbeForWrite(prc, sizeof(RECT), 1);
*prc = rc;
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
ret = 0;
}
_SEH2_END;
if (flags & DCB_RESET)
{
if (!(flags & DCB_WINDOWMGR))
{
pdc->erclBoundsApp.left = pdc->erclBoundsApp.top = INT_MAX;
pdc->erclBoundsApp.right = pdc->erclBoundsApp.bottom = INT_MIN;
}
else
{
pdc->erclBounds.left = pdc->erclBounds.top = INT_MAX;
pdc->erclBounds.right = pdc->erclBounds.bottom = INT_MIN;
}
}
DC_UnlockDc(pdc);
return ret;
}
