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2894 lines
70 KiB
2894 lines
70 KiB
/******************************Module*Header*******************************\
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* Module Name: rgngdi.cxx
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*
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* GDI Region calls
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*
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* Created: 30-Aug-1990 10:21:11
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* Author: Donald Sidoroff [donalds]
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*
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* Copyright (c) 1990 Microsoft Corporation
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\**************************************************************************/
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#include "precomp.hxx"
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extern PBRUSH gpbrNull;
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#if DBG
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extern ULONG dbgrgn;
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#endif
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/******************************Public*Routine******************************\
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* ASSERTDEVLOCK()
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*
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* This validates that the thread using the DC has the devlock as well.
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*
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* History:
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* 24-Jan-1995 -by- Eric Kutter [erick]
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* Wrote it.
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\**************************************************************************/
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#if DBG
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VOID ASSERTDEVLOCK(PDC pdc)
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{
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return;
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if (pdc->fs() & DC_SYNCHRONIZEACCESS)
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{
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ASSERTGDI((DWORD)(pdc->pDcDevLock_->OwnerThreads[0].OwnerThread)
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== (ERESOURCE_THREAD) PsGetCurrentThread(),
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"ASSERTDEVLOCK: wrong id\n");
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}
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}
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#endif
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/******************************Public*Routine******************************\
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* LONG GreCombineRgn(hrgnTrg,hrgnSrc1,hrgnSrc2,iMode)
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*
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* Combine the two source regions by the given mode. The result is placed
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* in the target. Note that either (or both sources) may be the same as
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* the target.
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*
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\**************************************************************************/
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int APIENTRY GreCombineRgn(
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HRGN hrgnTrg,
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HRGN hrgnSrc1,
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HRGN hrgnSrc2,
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int iMode)
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{
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RGNLOG rl(hrgnTrg,NULL,"GreCombineRgn",(LONG)hrgnSrc1,(LONG)hrgnSrc2,iMode);
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LONG Status;
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if ((iMode < RGN_MIN) || (iMode > RGN_MAX))
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{
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SAVE_ERROR_CODE(ERROR_INVALID_PARAMETER);
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return ERROR;
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}
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//
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// Check if a simple copy is to be performed.
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//
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if (iMode == RGN_COPY)
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{
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RGNOBJAPI roTrg(hrgnTrg,FALSE);
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RGNOBJAPI roSrc1(hrgnSrc1,TRUE);
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//
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// if either of these regions have a client rectangle, then set the
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// km region
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//
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if (!roTrg.bValid() || !roSrc1.bValid() || !roTrg.bCopy(roSrc1))
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{
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if (!roSrc1.bValid() || !roTrg.bValid())
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{
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SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
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}
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Status = ERROR;
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}
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else
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{
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Status = roTrg.iComplexity();
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}
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}
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else if (SAMEHANDLE(hrgnTrg, hrgnSrc1) || SAMEHANDLE(hrgnTrg, hrgnSrc2))
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{
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// Two of the handles are the same. Check to determine if all three
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// handles are the same.
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if (SAMEHANDLE(hrgnSrc1, hrgnSrc2))
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{
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RGNOBJAPI roTrg(hrgnTrg,FALSE);
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if (!roTrg.bValid())
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{
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SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
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Status = ERROR;
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}
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else
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{
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if ((iMode == RGN_DIFF) || (iMode == RGN_XOR))
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{
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roTrg.vSet();
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}
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Status = roTrg.iComplexity();
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}
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}
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else
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{
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//
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// All three handles are not the same.
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//
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// Also, Src1 or Src2 could be the actual
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// destination so don't use TRUE on the
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// RGNOBJAPI contructor
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//
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RGNMEMOBJTMP rmo((BOOL)FALSE);
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RGNOBJAPI roSrc1(hrgnSrc1,FALSE);
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RGNOBJAPI roSrc2(hrgnSrc2,FALSE);
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if (!rmo.bValid() ||
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!roSrc1.bValid() ||
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!roSrc2.bValid() ||
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(rmo.iCombine(roSrc1, roSrc2, iMode) == ERROR))
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{
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if (!roSrc1.bValid() || !roSrc2.bValid())
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{
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SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
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}
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Status = ERROR;
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}
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else if (SAMEHANDLE(hrgnTrg, hrgnSrc1))
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{
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if (!roSrc1.bSwap(&rmo))
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{
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Status = ERROR;
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}
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else
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{
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Status = roSrc1.iComplexity();
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}
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}
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else
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{
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if (!roSrc2.bSwap(&rmo))
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{
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Status = ERROR;
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}
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else
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{
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Status = roSrc2.iComplexity();
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}
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}
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}
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}
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else
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{
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// Handle the general case.
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RGNOBJAPI roSrc1(hrgnSrc1,TRUE);
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RGNOBJAPI roSrc2(hrgnSrc2,TRUE);
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RGNOBJAPI roTrg(hrgnTrg,FALSE);
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if (!roSrc1.bValid() ||
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!roSrc2.bValid() ||
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!roTrg.bValid() ||
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(roTrg.iCombine(roSrc1, roSrc2, iMode) == ERROR))
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{
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if (!roSrc1.bValid() || !roSrc2.bValid() || !roTrg.bValid())
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{
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SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
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}
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Status = ERROR;
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}
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else
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{
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Status = roTrg.iComplexity();
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}
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}
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return (int)Status;
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}
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/******************************Public*Routine******************************\
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* HRGN NtGdiCreateEllipticRgn(xLeft,yTop,xRight,yBottom)
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*
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* Create an elliptical region.
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*
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\**************************************************************************/
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HRGN
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APIENTRY NtGdiCreateEllipticRgn(
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int xLeft,
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int yTop,
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int xRight,
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int yBottom)
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{
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HRGN hrgn;
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PATHMEMOBJ pmo;
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if (!pmo.bValid())
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{
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SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
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return((HRGN) 0);
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}
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ERECTL ercl(xLeft, yTop, xRight, yBottom);
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if (!VALID_SCRPRC((RECTL *) &ercl))
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{
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SAVE_ERROR_CODE(ERROR_INVALID_PARAMETER);
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return((HRGN) 0);
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}
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// Handle the PS_INSIDEFRAME pen attribute and lower-right exclusion
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// by adjusting the box now. And set the flag that this will be an
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// ellipse, to fill it nice:
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EBOX ebox(ercl, TRUE);
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if (ebox.bEmpty())
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{
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RGNMEMOBJ rmoEmpty;
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if (rmoEmpty.bValid())
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{
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hrgn = rmoEmpty.hrgnAssociate();
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if (hrgn == (HRGN)0)
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{
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rmoEmpty.bDeleteRGNOBJ();
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}
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}
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else
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{
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SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
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hrgn = (HRGN) 0;
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}
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}
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else if (!bEllipse(pmo, ebox) || !pmo.bFlatten())
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{
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SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
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hrgn = (HRGN)0;
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}
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else
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{
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RGNMEMOBJ rmo(pmo); // convert path to region (ALTERNATE)
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if (rmo.bValid())
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{
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rmo.vTighten();
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hrgn = rmo.hrgnAssociate();
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if (hrgn == (HRGN)0)
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{
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rmo.bDeleteRGNOBJ();
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}
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}
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else
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{
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SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
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hrgn = (HRGN) 0;
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}
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}
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return(hrgn);
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}
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/******************************Public*Routine******************************\
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* HRGN GreCreatePolyPolygonRgn(aptl,acptl,cPoly,iFill)
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*
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* Create a polygonal region with multiple, disjoint polygons.
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*
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\**************************************************************************/
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HRGN
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APIENTRY
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GreCreatePolyPolygonRgnInternal(
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CONST POINT *aptl,
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CONST INT *acptl,
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int cPoly,
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int iFill,
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UINT cMaxPoints)
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{
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HRGN hrgn = NULL;
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if ((iFill == ALTERNATE) || (iFill == WINDING))
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{
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PATHMEMOBJ pmo;
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if (pmo.bValid())
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{
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EXFORMOBJ exfo(IDENTITY);
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ASSERTGDI(exfo.bValid(), "Can\'t make IDENTITY matrix!\n");
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if (bPolyPolygon(pmo,
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exfo,
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(PPOINTL) aptl,
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(PLONG) acptl,
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cPoly,
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cMaxPoints))
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{
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RGNMEMOBJ rmo(pmo, iFill); // convert path to region
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if (rmo.bValid())
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{
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hrgn = rmo.hrgnAssociate();
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if (hrgn == (HRGN)0)
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{
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rmo.bDeleteRGNOBJ();
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}
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}
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}
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}
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}
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return(hrgn);
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}
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/******************************Public*Routine******************************\
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* HRGN GreCreateRectRgn(xLeft,yTop,xRight,yBottom)
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*
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* Create a rectangular region.
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*
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* Called only from user
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*
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\**************************************************************************/
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HRGN APIENTRY GreCreateRectRgn(
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int xLeft,
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int yTop,
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int xRight,
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int yBottom)
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{
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RGNLOG rl((PREGION)NULL,"GreCreateRectRgn");
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ERECTL ercl(xLeft, yTop, xRight, yBottom);
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if (!VALID_SCRPRC((RECTL *) &ercl))
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{
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SAVE_ERROR_CODE(ERROR_INVALID_PARAMETER);
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return((HRGN) 0);
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}
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RGNMEMOBJ rmo((BOOL)FALSE);
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HRGN hrgn;
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if (!rmo.bValid())
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{
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hrgn = (HRGN) 0;
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SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
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}
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else
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{
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#if NOREORDER_RGN
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//
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// reduce region if coordinates are not well ordered
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//
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if ((xLeft > xRigth) || (yTop > yBottom))
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{
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WARNING("GreCreateRectRgn: region not well ordered");
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xLeft = 0;
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yTop = 0;
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xRight = 0;
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yBottom = 0;
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}
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#else
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//
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// Make the rectangle well ordered.
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//
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ercl.vOrder();
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#endif
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rmo.vSet((RECTL *) &ercl);
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hrgn = (HRGN)HmgInsertObject(rmo.prgnGet(),HMGR_MAKE_PUBLIC,RGN_TYPE);
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if (hrgn == (HRGN)0)
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{
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rmo.bDeleteRGNOBJ();
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}
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}
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rl.vRet((LONG)hrgn);
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return(hrgn);
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}
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/******************************Public*Routine******************************\
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*
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* NtGdiCreateRectRgn is the same as GreCreateRectRgn except an additional
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* argument is passed in, a shared RECTREGION pointer. This pointer must be
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* put into the shared pointer filed of the handle table for the RGN
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* created. This allows fast user-mode access to RECT regions.
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*
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* Arguments:
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*
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* xLeft - left edge of region
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* yTop - top edge of region
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* xRight - right edge of region
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* yBottom - bottom edge of region
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* pRectRegion - pointer to user-mode data
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*
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* Return Value:
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*
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* new HRGN or NULL
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*
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* History:
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*
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* 20-Jun-1995 -by- Mark Enstrom [marke]
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*
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\**************************************************************************/
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HRGN APIENTRY
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NtGdiCreateRectRgn(
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int xLeft,
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int yTop,
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int xRight,
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int yBottom
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)
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{
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RGNLOG rl((PREGION)NULL,"GreCreateRectRgn");
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ERECTL ercl(xLeft, yTop, xRight, yBottom);
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if (!VALID_SCRPRC((RECTL *) &ercl))
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{
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SAVE_ERROR_CODE(ERROR_INVALID_PARAMETER);
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return((HRGN) 0);
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}
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PVOID pRgnattr = (PRGNATTR)HmgAllocateObjectAttr();
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HRGN hrgn;
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if (pRgnattr == NULL)
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{
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//
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// memory alloc error
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//
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hrgn = (HRGN) 0;
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SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
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}
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else
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{
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RGNMEMOBJ rmo((BOOL)FALSE);
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if (!rmo.bValid())
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{
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hrgn = (HRGN) 0;
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SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
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}
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else
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{
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//
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// Make the rectangle well ordered.
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//
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ercl.vOrder();
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rmo.vSet((RECTL *) &ercl);
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//
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// allocate an object for this region, set
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// the shared pointer if needed
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//
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#if DBG
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RGNLOG rl(rmo.prgn,"RGNOBJ::hrgnAssociate");
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hrgn = (HRGN)HmgInsertObject(rmo.prgn,HMGR_ALLOC_LOCK,RGN_TYPE);
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rl.vRet((LONG)hrgn);
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#else
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hrgn = (HRGN)HmgInsertObject(rmo.prgn,HMGR_ALLOC_LOCK,RGN_TYPE);
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|
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#endif
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|
|
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if (hrgn == (HRGN)0)
|
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{
|
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rmo.bDeleteRGNOBJ();
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HmgFreeObjectAttr((POBJECTATTR)pRgnattr);
|
|
}
|
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else
|
|
{
|
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//
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|
// set shared rect region pointer and unlock
|
|
//
|
|
|
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((PENTRY)(rmo.prgn->pEntry))->pUser = (PDC_ATTR)pRgnattr;
|
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DEC_EXCLUSIVE_REF_CNT(rmo.prgn);
|
|
}
|
|
}
|
|
}
|
|
|
|
rl.vRet((LONG)hrgn);
|
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return(hrgn);
|
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}
|
|
|
|
/******************************Public*Routine******************************\
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|
* HRGN GreCreateRectRgnIndirect(prcl)
|
|
*
|
|
* Create a rectangular region.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
HRGN APIENTRY GreCreateRectRgnIndirect(LPRECT prcl)
|
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{
|
|
RGNLOG rl((PREGION)NULL,"GreCreateRectRgnIndirect",prcl->left,prcl->top,prcl->right);
|
|
|
|
|
|
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if ((prcl == (LPRECT) NULL) || !VALID_SCRPRC(prcl))
|
|
{
|
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SAVE_ERROR_CODE(ERROR_INVALID_PARAMETER);
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return((HRGN) 0);
|
|
}
|
|
|
|
RGNMEMOBJ rmo((BOOL)FALSE);
|
|
HRGN hrgn;
|
|
|
|
if (!rmo.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
hrgn = (HRGN) 0;
|
|
}
|
|
else
|
|
{
|
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((ERECTL *) prcl)->vOrder(); // Make the rectangle well ordered.
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|
|
rmo.vSet((RECTL *) prcl);
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|
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hrgn = rmo.hrgnAssociate();
|
|
|
|
if (hrgn == (HRGN)0)
|
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{
|
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rmo.bDeleteRGNOBJ();
|
|
}
|
|
}
|
|
rl.vRet((LONG)hrgn);
|
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return(hrgn);
|
|
}
|
|
|
|
|
|
|
|
HRGN
|
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APIENTRY
|
|
NtGdiCreateRoundRectRgn(
|
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int xLeft,
|
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int yTop,
|
|
int xRight,
|
|
int yBottom,
|
|
int xWidth,
|
|
int yHeight
|
|
)
|
|
{
|
|
PATHMEMOBJ pmo;
|
|
|
|
if (!pmo.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
return((HRGN) 0);
|
|
}
|
|
|
|
ERECTL ercl(xLeft, yTop, xRight, yBottom);
|
|
|
|
// Handle the PS_INSIDEFRAME pen attribute and lower-right exclusion
|
|
// by adjusting the box now. And set the flag that this will be an
|
|
// ellipse, to fill it nice:
|
|
|
|
EBOX ebox(ercl, TRUE);
|
|
HRGN hrgn;
|
|
|
|
if (ebox.bEmpty())
|
|
{
|
|
RGNMEMOBJ rmoEmpty;
|
|
|
|
if (rmoEmpty.bValid())
|
|
{
|
|
hrgn = rmoEmpty.hrgnAssociate();
|
|
|
|
if (hrgn == (HRGN)0)
|
|
{
|
|
rmoEmpty.bDeleteRGNOBJ();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
hrgn = (HRGN)0;
|
|
}
|
|
}
|
|
else if (!bRoundRect(pmo, ebox, xWidth, yHeight) || !pmo.bFlatten())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
hrgn = (HRGN)0;
|
|
}
|
|
else
|
|
{
|
|
RGNMEMOBJ rmo(pmo); // convert path to region (ALTERNATE)
|
|
|
|
if (rmo.bValid())
|
|
{
|
|
rmo.vTighten();
|
|
hrgn = rmo.hrgnAssociate();
|
|
|
|
if (hrgn == (HRGN)0)
|
|
{
|
|
rmo.bDeleteRGNOBJ();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
hrgn = (HRGN)0;
|
|
}
|
|
}
|
|
|
|
return(hrgn);
|
|
}
|
|
/******************************Public*Routine******************************\
|
|
* NtGdiEqualRgn()
|
|
*
|
|
* Check if the two regions are equal.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL
|
|
APIENTRY
|
|
NtGdiEqualRgn(
|
|
HRGN hrgn1,
|
|
HRGN hrgn2
|
|
)
|
|
{
|
|
BOOL bRet = ERROR;
|
|
|
|
RGNOBJAPI roSrc1(hrgn1,TRUE);
|
|
RGNOBJAPI roSrc2(hrgn2,TRUE);
|
|
|
|
if (roSrc1.bValid() && roSrc2.bValid())
|
|
{
|
|
bRet = roSrc1.bEqual(roSrc2);
|
|
}
|
|
|
|
return (bRet);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* BOOL GreFillRgn (hdc,hrgn,hbrush,pac)
|
|
*
|
|
* Paint the region with the specified brush.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL NtGdiFillRgn(
|
|
HDC hdc,
|
|
HRGN hrgn,
|
|
HBRUSH hbrush
|
|
)
|
|
{
|
|
BOOL bRet = FALSE;
|
|
|
|
DCOBJ dco(hdc);
|
|
BOOL bXform;
|
|
PREGION prgnOrg;
|
|
|
|
if (dco.bValid())
|
|
{
|
|
EXFORMOBJ exo(dco, WORLD_TO_DEVICE);
|
|
|
|
// We may have to scale/rotate the incoming region.
|
|
|
|
bXform = !dco.pdc->bWorldToDeviceIdentity();
|
|
|
|
RGNOBJAPI ro(hrgn,FALSE);
|
|
|
|
if (ro.bValid())
|
|
{
|
|
if (bXform)
|
|
{
|
|
PATHMEMOBJ pmo;
|
|
|
|
if (!pmo.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
return(FALSE);
|
|
}
|
|
|
|
if (!exo.bValid() || !ro.bCreate(pmo, &exo))
|
|
return(FALSE);
|
|
|
|
ASSERTGDI(pmo.bValid(),"GreFillRgn - pmo not valid\n");
|
|
|
|
RGNMEMOBJ rmo(pmo);
|
|
|
|
if (!rmo.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
return(FALSE);
|
|
}
|
|
|
|
// this replaces the prgn in ro with the new prgn. The ro destructor will
|
|
// unlock the handle for hrgn. We must first delete the prgn though.
|
|
|
|
prgnOrg = ro.prgnGet();
|
|
ro.vSetRgn(rmo.prgnGet());
|
|
}
|
|
|
|
// If region is null, return TRUE
|
|
|
|
if (ro.iComplexity() != NULLREGION)
|
|
{
|
|
// Accumulate bounds. We can do this before knowing if the operation is
|
|
// successful because bounds can be loose.
|
|
|
|
ERECTL ercl(0, 0, 0, 0);
|
|
|
|
ro.vGet_rcl((RECTL *) &ercl);
|
|
|
|
if (dco.fjAccum())
|
|
dco.vAccumulate(ercl);
|
|
|
|
if (dco.bHasSurface())
|
|
{
|
|
dco.pdc->prgnAPI(ro.prgnGet()); // Dirties rgnRao
|
|
|
|
DEVLOCKOBJ dlo(dco);
|
|
|
|
SURFACE *pSurf = dco.pSurface();
|
|
|
|
if (!dlo.bValid())
|
|
{
|
|
bRet = dco.bFullScreen();
|
|
}
|
|
else
|
|
{
|
|
ercl += dco.eptlOrigin(); // So we know where to draw
|
|
|
|
// Compute the clipping complexity and maybe reduce the exclusion rectangle.
|
|
|
|
ECLIPOBJ eco(dco.prgnEffRao(), ercl);
|
|
|
|
if (eco.erclExclude().bEmpty())
|
|
{
|
|
bRet = TRUE;
|
|
}
|
|
else
|
|
{
|
|
XEPALOBJ epal(pSurf->ppal());
|
|
XEPALOBJ epalDC(dco.ppal());
|
|
PDEVOBJ pdo(pSurf->hdev());
|
|
EBRUSHOBJ ebo;
|
|
|
|
|
|
PBRUSH pbrush = (BRUSH *)HmgShareCheckLock((HOBJ)hbrush,
|
|
BRUSH_TYPE);
|
|
|
|
bRet = FALSE; // assume we won't succeed
|
|
|
|
//
|
|
// Substitute the NULL brush if this brush handle
|
|
// couldn't be locked.
|
|
//
|
|
if (pbrush != NULL)
|
|
{
|
|
//
|
|
// in case the brush is cached and the color has changed
|
|
//
|
|
bSyncBrushObj(pbrush);
|
|
|
|
ebo.vInitBrush(pbrush,
|
|
dco.pdc->crTextClr(),
|
|
dco.pdc->crBackClr(),
|
|
epalDC,
|
|
epal,
|
|
pSurf);
|
|
|
|
ebo.pColorAdjustment(dco.pColorAdjustment());
|
|
|
|
if (!pbrush->bIsNull())
|
|
{
|
|
// Exclude the pointer.
|
|
|
|
DEVEXCLUDEOBJ dxo(dco,&eco.erclExclude(),&eco);
|
|
|
|
// Get and compute the correct mix mode.
|
|
|
|
MIX mix = ebo.mixBest(dco.pdc->jROP2(),
|
|
dco.pdc->jBkMode());
|
|
|
|
// Inc the target surface uniqueness
|
|
|
|
INC_SURF_UNIQ(pSurf);
|
|
|
|
// Issue a call to Paint.
|
|
|
|
(*PPFNGET(pdo, Paint, pSurf->flags())) (
|
|
pSurf->pSurfobj(),
|
|
&eco,
|
|
&ebo,
|
|
&dco.pdc->ptlFillOrigin(),
|
|
mix);
|
|
|
|
bRet = TRUE;
|
|
}
|
|
|
|
DEC_SHARE_REF_CNT_LAZY0(pbrush);
|
|
}
|
|
}
|
|
}
|
|
|
|
dco.pdc->prgnAPI((PREGION) NULL); // Dirties rgnRao
|
|
}
|
|
else
|
|
{
|
|
bRet = TRUE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bRet = TRUE;
|
|
}
|
|
|
|
if (bXform)
|
|
{
|
|
// need to delete the temporary one and put the old one back in so
|
|
// the handle gets unlocked
|
|
|
|
ro.prgnGet()->vDeleteREGION();
|
|
ro.vSetRgn(prgnOrg);
|
|
}
|
|
}
|
|
}
|
|
|
|
return(bRet);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* BOOL GreFrameRgn (hdc,hrgn,hbrush,xWidth,yHeight,pac)
|
|
*
|
|
* Frame the region and fill with the specified brush.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL APIENTRY NtGdiFrameRgn(
|
|
HDC hdc,
|
|
HRGN hrgn,
|
|
HBRUSH hbrush,
|
|
int xWidth,
|
|
int yHeight
|
|
)
|
|
{
|
|
DCOBJ dco(hdc);
|
|
RGNOBJAPI ro(hrgn,TRUE);
|
|
BOOL bRet = FALSE;
|
|
|
|
|
|
//
|
|
// Take the absolute value just like Win3 does:
|
|
//
|
|
|
|
xWidth = ABS(xWidth);
|
|
yHeight = ABS(yHeight);
|
|
|
|
//
|
|
// do some validation
|
|
//
|
|
|
|
if (dco.bValid() &&
|
|
ro.bValid() &&
|
|
(xWidth > 0) &&
|
|
(yHeight > 0))
|
|
{
|
|
|
|
if (ro.iComplexity() == NULLREGION)
|
|
{
|
|
bRet = TRUE;
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// Convert the region to a path, scaling/rotating it as we do so.
|
|
//
|
|
|
|
PATHMEMOBJ pmoSpine;
|
|
PATHMEMOBJ pmoWide;
|
|
EXFORMOBJ exo(dco, WORLD_TO_DEVICE);
|
|
|
|
ASSERTGDI(exo.bValid(), "Non valid xform");
|
|
|
|
if (pmoSpine.bValid() && pmoWide.bValid())
|
|
{
|
|
if (ro.bCreate(pmoSpine, &exo))
|
|
{
|
|
EXFORMOBJ exoWiden;
|
|
LINEATTRS la;
|
|
MATRIX mx;
|
|
|
|
exoWiden.vInit(&mx, DONT_COMPUTE_FLAGS);
|
|
|
|
//
|
|
// Initialize line attributes and xform from DC's xform:
|
|
//
|
|
|
|
pmoSpine.vWidenSetupForFrameRgn(dco, xWidth, yHeight, &exoWiden, &la);
|
|
|
|
//
|
|
// Make sure we won't expand out of device space before we
|
|
// widen:
|
|
//
|
|
|
|
if (pmoWide.bComputeWidenedBounds(pmoSpine, (XFORMOBJ*) &exoWiden, &la) &&
|
|
pmoWide.bWiden(pmoSpine, (XFORMOBJ*) &exoWiden, &la))
|
|
{
|
|
//
|
|
// Now convert the widened result back into a region:
|
|
//
|
|
|
|
RGNMEMOBJTMP rmoFill(pmoWide, WINDING);
|
|
RGNMEMOBJTMP rmoFrame;
|
|
|
|
if (rmoFill.bValid() &&
|
|
rmoFrame.bValid())
|
|
{
|
|
if (dco.pdc->bWorldToDeviceIdentity())
|
|
{
|
|
//
|
|
// We AND the original region and the widened region to get the
|
|
// frame region:
|
|
//
|
|
|
|
bRet = rmoFrame.bMerge(rmoFill, ro, gafjRgnOp[RGN_AND]);
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// Ugh, we have to transform the original region according to the
|
|
// world transform before we merge it:
|
|
//
|
|
|
|
RGNMEMOBJTMP rmo(pmoSpine);
|
|
|
|
bRet = rmo.bValid() &&
|
|
rmoFrame.bMerge(rmoFill, rmo, gafjRgnOp[RGN_AND]);
|
|
}
|
|
|
|
if (bRet)
|
|
{
|
|
//
|
|
// Accumulate bounds. We can do this before knowing if the operation is
|
|
// successful because bounds can be loose.
|
|
//
|
|
|
|
// NOTE - the default return value is now TRUE
|
|
|
|
ERECTL ercl(0, 0, 0, 0);
|
|
|
|
rmoFrame.vGet_rcl((RECTL *) &ercl);
|
|
|
|
if (dco.fjAccum())
|
|
{
|
|
dco.vAccumulate(ercl);
|
|
}
|
|
|
|
// in FULLSCREEN mode, exit with success.
|
|
|
|
if (!dco.bFullScreen() && dco.bHasSurface())
|
|
{
|
|
dco.pdc->prgnAPI(rmoFrame.prgnGet()); // Dirties rgnRao
|
|
|
|
DEVLOCKOBJ dlo(dco);
|
|
|
|
SURFACE *pSurf = dco.pSurface();
|
|
|
|
if (!dlo.bValid())
|
|
{
|
|
dco.pdc->prgnAPI(NULL); // Dirties rgnRao
|
|
bRet = dco.bFullScreen();
|
|
}
|
|
else
|
|
{
|
|
ercl += dco.eptlOrigin();
|
|
|
|
//
|
|
// Compute the clipping complexity and maybe reduce the exclusion rectangle.
|
|
//
|
|
|
|
ECLIPOBJ eco(dco.prgnEffRao(), ercl);
|
|
|
|
if (eco.erclExclude().bEmpty())
|
|
{
|
|
dco.pdc->prgnAPI(NULL); // Dirties rgnRao
|
|
}
|
|
else
|
|
{
|
|
|
|
XEPALOBJ epal(pSurf->ppal());
|
|
XEPALOBJ epalDC(dco.ppal());
|
|
PDEVOBJ pdo(pSurf->hdev());
|
|
EBRUSHOBJ ebo;
|
|
|
|
//
|
|
// NOTE - the default return value
|
|
// is now FALSE;
|
|
|
|
PBRUSH pbrush = (BRUSH *)HmgShareCheckLock((HOBJ)hbrush, BRUSH_TYPE);
|
|
|
|
bRet = FALSE;
|
|
|
|
if (pbrush == NULL)
|
|
{
|
|
dco.pdc->prgnAPI(NULL); // Dirties rgnRao
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// in case the brush is cached and the color has changed
|
|
//
|
|
bSyncBrushObj (pbrush);
|
|
|
|
ebo.vInitBrush(pbrush,
|
|
dco.pdc->crTextClr(),
|
|
dco.pdc->crBackClr(),
|
|
epalDC,
|
|
epal,
|
|
pSurf);
|
|
|
|
ebo.pColorAdjustment(dco.pColorAdjustment());
|
|
|
|
if (pbrush->bIsNull())
|
|
{
|
|
dco.pdc->prgnAPI(NULL); // Dirties rgnRao
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// Exclude the pointer.
|
|
//
|
|
|
|
DEVEXCLUDEOBJ dxo(dco,&eco.erclExclude(),&eco);
|
|
|
|
//
|
|
// Get and compute the correct mix mode.
|
|
//
|
|
|
|
MIX mix = ebo.mixBest(dco.pdc->jROP2(), dco.pdc->jBkMode());
|
|
|
|
//
|
|
// Inc the target surface uniqueness
|
|
//
|
|
|
|
INC_SURF_UNIQ(pSurf);
|
|
|
|
//
|
|
// Issue a call to Paint.
|
|
//
|
|
|
|
(*PPFNGET(pdo, Paint, pSurf->flags())) (
|
|
pSurf->pSurfobj(), // Destination surface.
|
|
&eco, // Clip object.
|
|
&ebo, // Realized brush.
|
|
&dco.pdc->ptlFillOrigin(), // Brush origin.
|
|
mix); // Mix mode.
|
|
|
|
dco.pdc->prgnAPI(NULL); // Dirties rgnRao
|
|
|
|
bRet = TRUE;
|
|
}
|
|
|
|
DEC_SHARE_REF_CNT_LAZY0(pbrush);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return(bRet);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* LONG GreGetRgnBox(hrgn,prcl)
|
|
*
|
|
* Get the bounding box of the region.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
int
|
|
APIENTRY
|
|
GreGetRgnBox(
|
|
HRGN hrgn,
|
|
LPRECT prcl)
|
|
{
|
|
|
|
int iret = ERROR;
|
|
|
|
RGNOBJAPI ro(hrgn,TRUE);
|
|
|
|
if ((prcl != NULL) &&
|
|
(ro.bValid()))
|
|
{
|
|
ro.vGet_rcl((RECTL *) prcl);
|
|
|
|
iret = (int)ro.iComplexity();
|
|
|
|
if (iret == NULLREGION)
|
|
{
|
|
//
|
|
// Be compatible with Win 3.1 [donalds] 02-Jun-1993
|
|
//
|
|
|
|
prcl->left = 0;
|
|
prcl->top = 0;
|
|
prcl->right = 0;
|
|
prcl->bottom = 0;
|
|
}
|
|
}
|
|
|
|
return(iret);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* BOOL GreInvertRgn(hdc,hrgn)
|
|
*
|
|
* Invert the colors in the given region.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL NtGdiInvertRgn(
|
|
HDC hdc,
|
|
HRGN hrgn)
|
|
{
|
|
DCOBJ dco(hdc);
|
|
BOOL bXform;
|
|
PREGION prgnOrg;
|
|
BOOL bRet = FALSE;
|
|
|
|
|
|
if (dco.bValid())
|
|
{
|
|
EXFORMOBJ exo(dco, WORLD_TO_DEVICE);
|
|
|
|
//
|
|
// We may have to scale/rotate the incoming region.
|
|
//
|
|
|
|
bXform = !dco.pdc->bWorldToDeviceIdentity();
|
|
|
|
RGNOBJAPI ro(hrgn,TRUE);
|
|
|
|
if (ro.bValid())
|
|
{
|
|
if (bXform)
|
|
{
|
|
PATHMEMOBJ pmo;
|
|
|
|
if (!pmo.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
return(FALSE);
|
|
}
|
|
if (!exo.bValid() || !ro.bCreate(pmo, &exo))
|
|
return(FALSE);
|
|
|
|
RGNMEMOBJ rmo(pmo);
|
|
|
|
if (!rmo.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
return(FALSE);
|
|
}
|
|
|
|
prgnOrg = ro.prgnGet();
|
|
ro.vSetRgn(rmo.prgnGet());
|
|
}
|
|
|
|
//
|
|
// If region is null, return TRUE
|
|
//
|
|
|
|
if (ro.iComplexity() != NULLREGION)
|
|
{
|
|
// Accumulate bounds. We can do this before knowing if the operation is
|
|
// successful because bounds can be loose.
|
|
|
|
ERECTL ercl;
|
|
|
|
ro.vGet_rcl((RECTL *) &ercl);
|
|
|
|
if (dco.fjAccum())
|
|
dco.vAccumulate(ercl);
|
|
|
|
if (dco.bHasSurface())
|
|
{
|
|
dco.pdc->prgnAPI(ro.prgnGet()); // Dirties rgnRao
|
|
|
|
DEVLOCKOBJ dlo(dco);
|
|
|
|
SURFACE *pSurf = dco.pSurface();
|
|
|
|
if (!dlo.bValid())
|
|
{
|
|
bRet = dco.bFullScreen();
|
|
}
|
|
else
|
|
{
|
|
ercl += dco.eptlOrigin();
|
|
|
|
// Compute the clipping complexity and maybe reduce the exclusion rectangle.
|
|
|
|
ECLIPOBJ eco(dco.prgnEffRao(), ercl);
|
|
|
|
if (!eco.erclExclude().bEmpty())
|
|
{
|
|
PDEVOBJ pdo(pSurf->hdev());
|
|
|
|
// Exclude the pointer.
|
|
|
|
DEVEXCLUDEOBJ dxo(dco,&eco.erclExclude(),&eco);
|
|
|
|
// Inc the target surface uniqueness
|
|
|
|
INC_SURF_UNIQ(pSurf);
|
|
|
|
// Issue a call to Paint.
|
|
|
|
(*PPFNGET(pdo, Paint, pSurf->flags())) (
|
|
pSurf->pSurfobj(), // Destination surface.
|
|
&eco, // Clip object.
|
|
(BRUSHOBJ *) NULL, // Realized brush.
|
|
(POINTL *) NULL, // Brush origin.
|
|
0x00000606); // R2_NOT
|
|
}
|
|
|
|
bRet = TRUE;
|
|
}
|
|
|
|
dco.pdc->prgnAPI((PREGION)NULL); // Dirties rgnRao
|
|
}
|
|
else
|
|
{
|
|
bRet = TRUE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bRet = TRUE;
|
|
}
|
|
|
|
|
|
if (bXform)
|
|
{
|
|
// need to delete the temporary one and put the old one back in so
|
|
// the handle gets unlocked
|
|
|
|
ro.prgnGet()->vDeleteREGION();
|
|
ro.vSetRgn(prgnOrg);
|
|
}
|
|
}
|
|
}
|
|
|
|
return(bRet);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* LONG GreOffsetRgn(hrgn,x,y)
|
|
*
|
|
* Offset the given region.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
int
|
|
APIENTRY
|
|
GreOffsetRgn(
|
|
HRGN hrgn,
|
|
int x,
|
|
int y)
|
|
{
|
|
|
|
|
|
RGNOBJAPI ro(hrgn,FALSE);
|
|
POINTL ptl;
|
|
int iRet = ERROR;
|
|
|
|
ptl.x = x;
|
|
ptl.y = y;
|
|
|
|
if (ro.bValid())
|
|
{
|
|
if (ro.bOffset(&ptl))
|
|
{
|
|
iRet = ro.iComplexity();
|
|
}
|
|
}
|
|
|
|
return iRet;
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* BOOL GrePtInRegion(hrgn,x,y)
|
|
*
|
|
* Is the point in the region?
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL APIENTRY GrePtInRegion(
|
|
HRGN hrgn,
|
|
int x,
|
|
int y)
|
|
{
|
|
RGNOBJAPI ro(hrgn,TRUE);
|
|
|
|
if (!ro.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
|
|
return((BOOL) ERROR);
|
|
}
|
|
|
|
POINTL ptl;
|
|
|
|
ptl.x = x;
|
|
ptl.y = y;
|
|
|
|
return(ro.bInside(&ptl) == REGION_POINT_INSIDE);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* BOOL GreRectInRegion(hrgn,prcl)
|
|
*
|
|
* Is any part of the rectangle in the region?
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL
|
|
APIENTRY
|
|
GreRectInRegion(
|
|
HRGN hrgn,
|
|
LPRECT prcl)
|
|
{
|
|
|
|
BOOL bRet = ERROR;
|
|
RGNOBJAPI ro(hrgn,TRUE);
|
|
|
|
if (prcl &&
|
|
(ro.bValid()))
|
|
{
|
|
bRet = (ro.bInside((RECTL *) prcl) == REGION_RECT_INTERSECT);
|
|
}
|
|
|
|
return (bRet);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* VOID GreSetRectRgn(hrgn,xLeft,yTop,xRight,yBottom)
|
|
*
|
|
* Set the region to be the specified rectangle
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL
|
|
APIENTRY
|
|
GreSetRectRgn(
|
|
HRGN hrgn,
|
|
int xLeft,
|
|
int yTop,
|
|
int xRight,
|
|
int yBottom)
|
|
{
|
|
|
|
|
|
RGNOBJAPI ro(hrgn,FALSE);
|
|
BOOL bRet = ERROR;
|
|
|
|
if (ro.bValid())
|
|
{
|
|
ERECTL ercl(xLeft, yTop, xRight, yBottom);
|
|
|
|
if (VALID_SCRPRC((RECTL *) &ercl))
|
|
{
|
|
ercl.vOrder(); // Make the rectangle well ordered.
|
|
|
|
ro.vSet((RECTL *) &ercl);
|
|
|
|
bRet = TRUE;
|
|
}
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* LONG GreExcludeClipRect(hdc,xLeft,yTop,xRight,yBottom)
|
|
*
|
|
* Subtract the rectangle from the current clip region
|
|
*
|
|
\**************************************************************************/
|
|
|
|
int APIENTRY GreExcludeClipRect(
|
|
HDC hdc,
|
|
int xLeft,
|
|
int yTop,
|
|
int xRight,
|
|
int yBottom)
|
|
{
|
|
|
|
int iRet;
|
|
DCOBJ dco(hdc);
|
|
|
|
if (dco.bValid())
|
|
{
|
|
// For speed, test for rotation upfront.
|
|
|
|
EXFORMOBJ exo(dco, WORLD_TO_DEVICE);
|
|
ERECTL ercl(xLeft, yTop, xRight, yBottom);
|
|
|
|
if (!exo.bRotation())
|
|
{
|
|
exo.vOrder(*(RECTL *)&ercl);
|
|
exo.bXform(ercl);
|
|
|
|
iRet = (int)dco.pdc->iCombine((RECTL *) &ercl,RGN_DIFF);
|
|
}
|
|
else if (!VALID_SCRPRC((RECTL *) &ercl))
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_PARAMETER);
|
|
iRet = ERROR;
|
|
}
|
|
else
|
|
{
|
|
iRet = (int) dco.pdc->iCombine(&exo, (RECTL *) &ercl,RGN_DIFF);
|
|
}
|
|
|
|
if (iRet > NULLREGION)
|
|
{
|
|
iRet = COMPLEXREGION;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
|
|
iRet = ERROR;
|
|
}
|
|
|
|
return (iRet);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* LONG GreGetAppClipBox(hdc,prcl)
|
|
*
|
|
* Get the bounding box of the clip region
|
|
*
|
|
\**************************************************************************/
|
|
|
|
int APIENTRY GreGetAppClipBox(
|
|
HDC hdc,
|
|
LPRECT prcl)
|
|
{
|
|
DCOBJ dor(hdc);
|
|
int iRet;
|
|
|
|
if (dor.bValid())
|
|
{
|
|
DEVLOCKOBJ dlo(dor);
|
|
|
|
if (!dlo.bValid())
|
|
{
|
|
if (dor.bFullScreen())
|
|
{
|
|
prcl->left = 0; // Make it a 'simple' empty rectangle
|
|
prcl->right = 0;
|
|
prcl->top = 0;
|
|
prcl->bottom = 0;
|
|
return(COMPLEXREGION);
|
|
}
|
|
else
|
|
{
|
|
return(ERROR);
|
|
}
|
|
}
|
|
|
|
RGNOBJ ro(dor.prgnEffRao());
|
|
|
|
ro.vGet_rcl((RECTL *) prcl);
|
|
|
|
//
|
|
// return to logical coordinates
|
|
//
|
|
|
|
if ((prcl->left >= prcl->right) || (prcl->top >= prcl->bottom))
|
|
{
|
|
prcl->left = 0; // Make it a 'simple' empty rectangle
|
|
prcl->right = 0;
|
|
prcl->top = 0;
|
|
prcl->bottom = 0;
|
|
|
|
iRet = NULLREGION;
|
|
}
|
|
else
|
|
{
|
|
EXFORMOBJ xfoDtoW(dor, DEVICE_TO_WORLD);
|
|
|
|
if (xfoDtoW.bValid())
|
|
{
|
|
*(ERECTL *)prcl -= dor.eptlOrigin();
|
|
|
|
if (!xfoDtoW.bRotation())
|
|
{
|
|
if (xfoDtoW.bXform((POINTL *) prcl, 2))
|
|
{
|
|
iRet = ro.iComplexity();
|
|
}
|
|
else
|
|
{
|
|
iRet = ERROR;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
POINTL aptl[4];
|
|
|
|
aptl[0].x = prcl->left;
|
|
aptl[0].y = prcl->top;
|
|
aptl[1].x = prcl->right;
|
|
aptl[1].y = prcl->top;
|
|
aptl[2].x = prcl->left;
|
|
aptl[2].y = prcl->bottom;
|
|
aptl[3].x = prcl->right;
|
|
aptl[3].y = prcl->bottom;
|
|
|
|
xfoDtoW.bXform(aptl, 4);
|
|
|
|
prcl->left = MIN4(aptl[0].x, aptl[1].x, aptl[2].x, aptl[3].x);
|
|
prcl->top = MIN4(aptl[0].y, aptl[1].y, aptl[2].y, aptl[3].y);
|
|
prcl->right = MAX4(aptl[0].x, aptl[1].x, aptl[2].x, aptl[3].x);
|
|
prcl->bottom = MAX4(aptl[0].y, aptl[1].y, aptl[2].y, aptl[3].y);
|
|
|
|
iRet = COMPLEXREGION;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
iRet = ERROR;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
|
|
iRet = ERROR;
|
|
}
|
|
|
|
return(iRet);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* int GreGetRandomRgn(hdc,hrgn,iNum)
|
|
*
|
|
* Copy the specified region into the handle provided
|
|
*
|
|
\**************************************************************************/
|
|
|
|
int GreGetRandomRgn(
|
|
HDC hdc,
|
|
HRGN hrgn,
|
|
int iNum)
|
|
{
|
|
DCOBJ dor(hdc);
|
|
PREGION prgnSrc1, prgnSrc2;
|
|
int iMode = RGN_COPY;
|
|
|
|
int iRet = -1;
|
|
|
|
if (!dor.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
|
|
}
|
|
else
|
|
{
|
|
DEVLOCKOBJ dlo(dor);
|
|
|
|
switch(iNum)
|
|
{
|
|
case 1:
|
|
prgnSrc1 = dor.pdc->prgnClip();
|
|
break;
|
|
|
|
case 2:
|
|
prgnSrc1 = dor.pdc->prgnMeta();
|
|
break;
|
|
|
|
case 3:
|
|
prgnSrc1 = dor.pdc->prgnClip();
|
|
prgnSrc2 = dor.pdc->prgnMeta();
|
|
|
|
if (prgnSrc1 == NULL) // prgnSrc1 == 0, prgnSrc2 != 0
|
|
{
|
|
prgnSrc1 = prgnSrc2;
|
|
}
|
|
else if (prgnSrc2 != NULL) // prgnSrc1 != 0, prgnSrc2 != 0
|
|
{
|
|
iMode = RGN_AND;
|
|
}
|
|
break;
|
|
|
|
case 4:
|
|
ASSERTDEVLOCK(dor.pdc);
|
|
prgnSrc1 = dor.pdc->prgnVis();
|
|
break;
|
|
|
|
default:
|
|
prgnSrc1 = NULL;
|
|
}
|
|
|
|
if (prgnSrc1 == NULL)
|
|
{
|
|
iRet = 0;
|
|
}
|
|
else
|
|
{
|
|
RGNOBJAPI ro(hrgn,FALSE);
|
|
|
|
if (ro.bValid())
|
|
{
|
|
RGNOBJ ro1(prgnSrc1);
|
|
|
|
if (iMode == RGN_COPY)
|
|
{
|
|
if (ro.bCopy(ro1))
|
|
iRet = 1;
|
|
}
|
|
else
|
|
{
|
|
RGNOBJ ro2(prgnSrc2);
|
|
|
|
if (ro.iCombine(ro1,ro2,iMode) != RGN_ERROR)
|
|
iRet = 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return(iRet);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* LONG GreIntersectClipRect(hdc,xLeft,yTop,xRight,yBottom)
|
|
*
|
|
* AND the rectangle with the current clip region
|
|
*
|
|
\**************************************************************************/
|
|
|
|
int APIENTRY GreIntersectClipRect(
|
|
HDC hdc,
|
|
int xLeft,
|
|
int yTop,
|
|
int xRight,
|
|
int yBottom)
|
|
{
|
|
|
|
|
|
DCOBJ dco(hdc);
|
|
|
|
if (!dco.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
|
|
return(ERROR);
|
|
}
|
|
|
|
EXFORMOBJ exo(dco, WORLD_TO_DEVICE);
|
|
ERECTL ercl(xLeft, yTop, xRight, yBottom);
|
|
|
|
// For speed, test for rotation up front.
|
|
|
|
int iRet;
|
|
|
|
if (!exo.bRotation())
|
|
{
|
|
exo.vOrder(*(RECTL *)&ercl);
|
|
exo.bXform(ercl);
|
|
|
|
iRet = (int)dco.pdc->iCombine((RECTL *) &ercl,RGN_AND);
|
|
}
|
|
else if (!VALID_SCRPRC((RECTL *) &ercl))
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_PARAMETER);
|
|
iRet = ERROR;
|
|
}
|
|
else
|
|
{
|
|
iRet = (int)dco.pdc->iCombine(&exo, (RECTL *) &ercl,RGN_AND);
|
|
}
|
|
|
|
if (iRet > NULLREGION)
|
|
iRet = COMPLEXREGION;
|
|
|
|
return(iRet);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* INT NtGdiOffsetClipRgn(hdc,x,y)
|
|
*
|
|
* Offset the current clip region
|
|
*
|
|
\**************************************************************************/
|
|
|
|
int APIENTRY
|
|
NtGdiOffsetClipRgn(
|
|
HDC hdc,
|
|
int x,
|
|
int y)
|
|
{
|
|
DCOBJ dor(hdc);
|
|
|
|
if (!dor.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
|
|
return(ERROR);
|
|
}
|
|
|
|
PREGION prgn = dor.pdc->prgnClip();
|
|
|
|
if (prgn == NULL)
|
|
return(SIMPLEREGION);
|
|
|
|
// if this region has multiple references (saved levels) we need to duplicate
|
|
// it and modify the copy.
|
|
|
|
if (prgn->cRefs > 1)
|
|
{
|
|
RGNOBJ ro(prgn);
|
|
|
|
RGNMEMOBJ rmo(ro.sizeRgn());
|
|
|
|
if (!rmo.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
return(ERROR);
|
|
}
|
|
|
|
rmo.vCopy(ro);
|
|
prgn = rmo.prgnGet();
|
|
|
|
rmo.vSelect(hdc);
|
|
ro.vUnselect();
|
|
|
|
dor.pdc->prgnClip(prgn);
|
|
|
|
}
|
|
|
|
RGNOBJ ro(prgn);
|
|
|
|
EPOINTL eptl(x, y);
|
|
|
|
// Transform the point from Logical to Device
|
|
|
|
EXFORMOBJ xfo(dor, WORLD_TO_DEVICE);
|
|
|
|
if (!xfo.bXform(*((EVECTORL *) &eptl)) || !ro.bOffset((PPOINTL)&eptl))
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_CAN_NOT_COMPLETE);
|
|
return(ERROR);
|
|
}
|
|
|
|
dor.pdc->vReleaseRao();
|
|
|
|
return(ro.iComplexity());
|
|
}
|
|
|
|
|
|
/******************************Public*Routine******************************\
|
|
* BOOL GrePtVisible(hdc,x,y)
|
|
*
|
|
* Is the point in the current clip region?
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL
|
|
APIENTRY
|
|
NtGdiPtVisible(
|
|
HDC hdc,
|
|
int x,
|
|
int y)
|
|
{
|
|
DCOBJ dor(hdc);
|
|
|
|
if (!dor.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
|
|
return(ERROR_BOOL);
|
|
}
|
|
|
|
DEVLOCKOBJ dlo(dor);
|
|
|
|
if (!dlo.bValid())
|
|
return(REGION_POINT_OUTSIDE);
|
|
|
|
RGNOBJ ro(dor.prgnEffRao());
|
|
|
|
EPOINTL eptl(x, y);
|
|
|
|
// Transform the point from Logical to Screen
|
|
|
|
EXFORMOBJ xfo(dor, WORLD_TO_DEVICE);
|
|
xfo.bXform(eptl);
|
|
|
|
eptl += dor.eptlOrigin();
|
|
|
|
return(ro.bInside((PPOINTL)&eptl) == REGION_POINT_INSIDE);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* BOOL GreRectVisible(hdc,prcl)
|
|
*
|
|
* Is the rectangle in the current clip region?
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL APIENTRY GreRectVisible(
|
|
HDC hdc,
|
|
LPRECT prcl)
|
|
{
|
|
DCOBJ dor(hdc);
|
|
|
|
if (!dor.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
|
|
return(ERROR_BOOL);
|
|
}
|
|
|
|
DEVLOCKOBJ dlo(dor);
|
|
|
|
if (!dlo.bValid())
|
|
return(REGION_RECT_OUTSIDE);
|
|
|
|
RGNOBJ ro(dor.prgnEffRao());
|
|
|
|
ERECTL ercl = *((ERECTL *) prcl);
|
|
|
|
// Transform the rectangle from Logical to Screen
|
|
|
|
EXFORMOBJ xfo(dor, WORLD_TO_DEVICE);
|
|
|
|
// If there is no rotation in the transform, just call bInside().
|
|
|
|
if (!xfo.bRotation())
|
|
{
|
|
xfo.vOrder(*(RECTL *)&ercl);
|
|
xfo.bXform(ercl);
|
|
|
|
ercl += dor.eptlOrigin();
|
|
|
|
BOOL bIn = ro.bInside((RECTL *) &ercl);
|
|
|
|
return(bIn == REGION_RECT_INTERSECT);
|
|
}
|
|
|
|
// Convert the rectangle to a parallelogram and merge it with the Rao.
|
|
// If there is anything left, the call succeeded.
|
|
|
|
POINTL aptl[4];
|
|
|
|
aptl[0].x = prcl->left;
|
|
aptl[0].y = prcl->top;
|
|
aptl[1].x = prcl->right;
|
|
aptl[1].y = prcl->top;
|
|
aptl[2].x = prcl->right;
|
|
aptl[2].y = prcl->bottom;
|
|
aptl[3].x = prcl->left;
|
|
aptl[3].y = prcl->bottom;
|
|
|
|
// Create a path, and draw the parallelogram.
|
|
|
|
PATHMEMOBJ pmo;
|
|
BOOL bRes;
|
|
|
|
if (!pmo.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
bRes = ERROR_BOOL;
|
|
}
|
|
else if (!pmo.bMoveTo(&xfo, &aptl[0]) ||
|
|
!pmo.bPolyLineTo(&xfo, &aptl[1], 3) ||
|
|
!pmo.bCloseFigure())
|
|
{
|
|
bRes = ERROR_BOOL;
|
|
}
|
|
else
|
|
{
|
|
// Now, convert it back into a region.
|
|
|
|
RGNMEMOBJTMP rmoPlg(pmo, ALTERNATE);
|
|
RGNMEMOBJTMP rmo;
|
|
|
|
if (!rmoPlg.bValid() || !rmo.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
bRes = ERROR_BOOL;
|
|
}
|
|
else
|
|
{
|
|
if (!rmo.bMerge(ro, rmoPlg, gafjRgnOp[RGN_AND]) ||
|
|
(rmo.iComplexity() == NULLREGION))
|
|
{
|
|
bRes = (BOOL)REGION_RECT_OUTSIDE;
|
|
}
|
|
else
|
|
{
|
|
bRes = (BOOL)REGION_RECT_INTERSECT;
|
|
}
|
|
}
|
|
}
|
|
|
|
return(bRes);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* int GreExtSelectClipRgn(hdc,hrgn,iMode)
|
|
*
|
|
* Merge the region into current clip region
|
|
*
|
|
\**************************************************************************/
|
|
|
|
int
|
|
GreExtSelectClipRgn(
|
|
HDC hdc,
|
|
HRGN hrgn,
|
|
int iMode)
|
|
{
|
|
int iRet = RGN_ERROR;
|
|
BOOL bSame = FALSE;
|
|
|
|
if (((iMode < RGN_MIN) || (iMode > RGN_MAX)))
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_PARAMETER);
|
|
}
|
|
else
|
|
{
|
|
DCOBJ dco(hdc);
|
|
if (!dco.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
|
|
}
|
|
else
|
|
{
|
|
if (hrgn != (HRGN)0)
|
|
{
|
|
RGNOBJAPI ro(hrgn,TRUE);
|
|
|
|
if (ro.bValid())
|
|
{
|
|
iRet = dco.pdc->iSelect(ro.prgnGet(),iMode);
|
|
|
|
if (iRet != RGN_ERROR)
|
|
{
|
|
DEVLOCKOBJ dlo(dco);
|
|
RGNOBJ ro(dco.prgnEffRao());
|
|
iRet = ro.iComplexity();
|
|
}
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
if (iMode == RGN_COPY)
|
|
{
|
|
iRet = dco.pdc->iSelect((PREGION)NULL,iMode);
|
|
|
|
if (iRet != RGN_ERROR)
|
|
{
|
|
RGNOBJ roVis(dco.pdc->prgnVis());
|
|
iRet = roVis.iComplexity();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
return(iRet);
|
|
}
|
|
|
|
|
|
/******************************Public*Routine******************************\
|
|
* SelectClip from bathcing
|
|
*
|
|
* Arguments:
|
|
*
|
|
*
|
|
*
|
|
* Return Value:
|
|
*
|
|
*
|
|
*
|
|
* History:
|
|
*
|
|
* 26-Oct-1995 -by- Mark Enstrom [marke]
|
|
*
|
|
\**************************************************************************/
|
|
|
|
GreExtSelectClipRgnLocked(
|
|
XDCOBJ &dco,
|
|
PRECTL prcl,
|
|
int iMode)
|
|
{
|
|
int iRet = RGN_ERROR;
|
|
BOOL bNullHrgn = iMode & REGION_NULL_HRGN;
|
|
|
|
iMode &= ~REGION_NULL_HRGN;
|
|
|
|
if (((iMode < RGN_MIN) || (iMode > RGN_MAX)))
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_PARAMETER);
|
|
}
|
|
else
|
|
{
|
|
if (!dco.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// iFlag specifies a null hrgn
|
|
//
|
|
|
|
if (!bNullHrgn)
|
|
{
|
|
//
|
|
// check if current region is the same as new
|
|
// hrgn
|
|
//
|
|
|
|
BOOL bSame = FALSE;
|
|
|
|
RGNOBJ roClipOld(dco.pdc->prgnClip());
|
|
|
|
if (roClipOld.bValid())
|
|
{
|
|
if (roClipOld.bRectl())
|
|
{
|
|
RECTL rclOld;
|
|
roClipOld.vGet_rcl(&rclOld);
|
|
|
|
if (
|
|
(prcl->left == rclOld.left) &&
|
|
(prcl->top == rclOld.top) &&
|
|
(prcl->right == rclOld.right) &&
|
|
(prcl->bottom == rclOld.bottom)
|
|
)
|
|
{
|
|
RGNOBJ ro(dco.prgnEffRao());
|
|
iRet = ro.iComplexity();
|
|
bSame = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// regions don't match, must select new region into DC
|
|
//
|
|
|
|
if (!bSame)
|
|
{
|
|
RGNMEMOBJTMP ro(FALSE);
|
|
|
|
if (ro.bValid())
|
|
{
|
|
ro.vSet(prcl);
|
|
|
|
iRet = dco.pdc->iSelect(ro.prgnGet(),iMode);
|
|
|
|
//
|
|
// need to update RAO
|
|
//
|
|
|
|
if (dco.pdc->bDirtyRao())
|
|
{
|
|
if (!dco.pdc->bCompute())
|
|
{
|
|
WARNING("bCompute fails in GreExtSelectClipRgnLocked");
|
|
}
|
|
}
|
|
|
|
if (iRet != RGN_ERROR)
|
|
{
|
|
RGNOBJ ro(dco.prgnEffRao());
|
|
iRet = ro.iComplexity();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (iMode == RGN_COPY)
|
|
{
|
|
iRet = dco.pdc->iSelect((PREGION)NULL,iMode);
|
|
|
|
//
|
|
// need to update RAO
|
|
//
|
|
|
|
if (dco.pdc->bDirtyRao())
|
|
{
|
|
if (!dco.pdc->bCompute())
|
|
{
|
|
WARNING("bCompute fails in GreExtSelectClipRgnLocked");
|
|
}
|
|
}
|
|
|
|
if (iRet != RGN_ERROR)
|
|
{
|
|
RGNOBJ roVis(dco.pdc->prgnVis());
|
|
iRet = roVis.iComplexity();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return(iRet);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* int GreStMetaRgn(hdc,hrgn,iMode)
|
|
*
|
|
* Merge the region into current meta region
|
|
*
|
|
\**************************************************************************/
|
|
|
|
int GreSetMetaRgn(
|
|
HDC hdc)
|
|
{
|
|
DCOBJ dco(hdc);
|
|
|
|
if (!dco.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_PARAMETER);
|
|
return(ERROR);
|
|
}
|
|
|
|
return(dco.pdc->iSetMetaRgn());
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* DWORD GreGetRegionData(hrgn, nCount, lpRgnData)
|
|
*
|
|
* Compute size of buffer/copy region data to buffer
|
|
*
|
|
\**************************************************************************/
|
|
|
|
DWORD
|
|
NtGdiGetRegionData(
|
|
HRGN hrgn,
|
|
DWORD nCount,
|
|
LPRGNDATA lpRgnData)
|
|
{
|
|
DWORD nSize;
|
|
DWORD nRectangles;
|
|
RGNOBJAPI ro(hrgn,TRUE);
|
|
|
|
if (ro.bValid())
|
|
{
|
|
//
|
|
// just return size if buffer is NULL
|
|
//
|
|
|
|
nSize = ro.sizeSave() + sizeof(RGNDATAHEADER);
|
|
|
|
if (lpRgnData != (LPRGNDATA) NULL)
|
|
{
|
|
if (nSize > nCount)
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_PARAMETER);
|
|
nSize = ERROR;
|
|
}
|
|
else
|
|
{
|
|
__try
|
|
{
|
|
nRectangles = (nSize - sizeof(RGNDATAHEADER)) / sizeof(RECTL);
|
|
|
|
ProbeForWrite(lpRgnData,nCount, sizeof(DWORD));
|
|
|
|
lpRgnData->rdh.dwSize = sizeof(RGNDATAHEADER);
|
|
lpRgnData->rdh.iType = RDH_RECTANGLES;
|
|
lpRgnData->rdh.nCount = nRectangles;
|
|
lpRgnData->rdh.nRgnSize = max(ro.sizeRgn(), QUANTUM_REGION_SIZE);
|
|
if (nRectangles != 0)
|
|
{
|
|
ro.vGet_rcl((RECTL *) &lpRgnData->rdh.rcBound);
|
|
}
|
|
else
|
|
{
|
|
lpRgnData->rdh.rcBound.left = 0;
|
|
lpRgnData->rdh.rcBound.top = 0;
|
|
lpRgnData->rdh.rcBound.right = 0;
|
|
lpRgnData->rdh.rcBound.bottom = 0;
|
|
}
|
|
ro.vDownload((PVOID) &lpRgnData->Buffer);
|
|
}
|
|
__except(EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_PARAMETER);
|
|
nSize = ERROR;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_INVALID_HANDLE);
|
|
nSize = ERROR;
|
|
}
|
|
|
|
return(nSize);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* HRGN GreExtCreateRegion(lpXform, nCount, lpRgnData)
|
|
*
|
|
* Create a region from a region data buffer
|
|
*
|
|
\**************************************************************************/
|
|
|
|
HRGN
|
|
GreExtCreateRegion(
|
|
LPXFORM lpXform,
|
|
DWORD nCount,
|
|
LPRGNDATA lpRgnData)
|
|
{
|
|
DWORD nSize = lpRgnData->rdh.dwSize;
|
|
ULONG cRect = lpRgnData->rdh.nCount;
|
|
|
|
if (nSize != sizeof(RGNDATAHEADER))
|
|
return((HRGN) 0);
|
|
|
|
nSize += (cRect * sizeof(RECTL));
|
|
|
|
if (nSize > nCount)
|
|
return((HRGN) 0);
|
|
|
|
// At this point we have what looks like a valid header, and a buffer that
|
|
// is at least big enough to contain all the data for a region. Create a
|
|
// region to contain it and then attempt to upload the data into the region.
|
|
|
|
ULONG cj = SINGLE_REGION_SIZE;
|
|
RECTL *prcl = (RECTL *)lpRgnData->Buffer;
|
|
|
|
// figure out the size the region should be. First loop through scans.
|
|
// not safe to assume the value passed from the client is valid.
|
|
|
|
for (ULONG i = 0; i < cRect; ++prcl)
|
|
{
|
|
cj += NULL_SCAN_SIZE + 2 * sizeof(INDEX_LONG);
|
|
++i;
|
|
|
|
if (i == cRect)
|
|
{
|
|
break;
|
|
}
|
|
|
|
//
|
|
// loop through rects within the scan.
|
|
//
|
|
|
|
for (;(i < cRect) && (prcl[0].top == prcl[1].top); ++i, ++prcl)
|
|
{
|
|
cj += 2 * sizeof(INDEX_LONG);
|
|
}
|
|
|
|
//
|
|
// Add the size of a null scan if the two rects don't connect in y.
|
|
//
|
|
|
|
if (prcl[0].bottom < prcl[1].top)
|
|
{
|
|
cj += NULL_SCAN_SIZE;
|
|
}
|
|
}
|
|
|
|
RGNMEMOBJ rmo((SIZE_T) cj);
|
|
HRGN hrgn;
|
|
|
|
if (!rmo.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
return((HRGN) 0);
|
|
}
|
|
|
|
if (!rmo.bUpload((PVOID) &lpRgnData->Buffer, (COUNT) cRect))
|
|
{
|
|
rmo.bDeleteRGNOBJ();
|
|
return((HRGN) 0);
|
|
}
|
|
|
|
if ((lpXform == (LPXFORM) NULL) || (rmo.iComplexity() == NULLREGION))
|
|
{
|
|
//
|
|
// Create the proper bounding box and make it long lived
|
|
//
|
|
|
|
rmo.vTighten();
|
|
|
|
hrgn = rmo.hrgnAssociate();
|
|
|
|
if (hrgn == NULL)
|
|
{
|
|
rmo.bDeleteRGNOBJ();
|
|
}
|
|
|
|
return(hrgn);
|
|
}
|
|
|
|
//
|
|
// Convert the XFORM to a MATRIX
|
|
//
|
|
|
|
MATRIX mx;
|
|
|
|
vConvertXformToMatrix((XFORM *) lpXform, &mx);
|
|
|
|
//
|
|
// Scale it to FIXED notation.
|
|
//
|
|
|
|
mx.efM11.vTimes16();
|
|
mx.efM12.vTimes16();
|
|
mx.efM21.vTimes16();
|
|
mx.efM22.vTimes16();
|
|
mx.efDx.vTimes16();
|
|
mx.efDy.vTimes16();
|
|
mx.fxDx *= 16;
|
|
mx.fxDy *= 16;
|
|
|
|
EXFORMOBJ exo(&mx, XFORM_FORMAT_LTOFX | COMPUTE_FLAGS);
|
|
|
|
if (!exo.bValid())
|
|
{
|
|
rmo.bDeleteRGNOBJ();
|
|
return((HRGN) 0);
|
|
}
|
|
|
|
//
|
|
// If the xform is the identity, we don't have to do anything.
|
|
//
|
|
|
|
if (exo.bIdentity())
|
|
{
|
|
//
|
|
// Create the proper bounding box and make it long lived
|
|
//
|
|
|
|
rmo.vTighten();
|
|
hrgn = rmo.hrgnAssociate();
|
|
|
|
if (hrgn == NULL)
|
|
{
|
|
rmo.bDeleteRGNOBJ();
|
|
}
|
|
|
|
return(hrgn);
|
|
}
|
|
|
|
//
|
|
// Create a path from the region
|
|
//
|
|
|
|
PATHMEMOBJ pmo;
|
|
|
|
if (!pmo.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
rmo.bDeleteRGNOBJ();
|
|
return((HRGN) 0);
|
|
}
|
|
|
|
BOOL bSuccess = rmo.bCreate(pmo, &exo);
|
|
|
|
//
|
|
// done with the region, delete it now.
|
|
//
|
|
|
|
rmo.bDeleteRGNOBJ();
|
|
|
|
if (!bSuccess)
|
|
{
|
|
return((HRGN) 0);
|
|
}
|
|
|
|
//
|
|
// Create a region from the path
|
|
//
|
|
|
|
RGNMEMOBJTMP rmoPath(pmo);
|
|
|
|
if (!rmoPath.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
return((HRGN) 0);
|
|
}
|
|
|
|
RGNMEMOBJ rmoFinal;
|
|
|
|
if (!rmoFinal.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
return((HRGN) 0);
|
|
}
|
|
|
|
//
|
|
// coelece the region
|
|
//
|
|
|
|
rmoFinal.iReduce(rmoPath);
|
|
|
|
//
|
|
// Create the proper bounding box and make it long lived
|
|
//
|
|
|
|
rmoFinal.vTighten();
|
|
|
|
hrgn = rmoFinal.hrgnAssociate();
|
|
|
|
if (hrgn == NULL)
|
|
{
|
|
rmoFinal.bDeleteRGNOBJ();
|
|
}
|
|
|
|
return(hrgn);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* BOOL GreIntersectVisRect(hdc, xLeft, yTop, xRight, yBottom)
|
|
*
|
|
* Intersect (AND) the rectangle with the vis region
|
|
*
|
|
* Warnings:
|
|
* This is a PRIVATE USER API.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL GreIntersectVisRect(
|
|
HDC hdc,
|
|
int xLeft,
|
|
int yTop,
|
|
int xRight,
|
|
int yBottom)
|
|
{
|
|
BOOL bRes = FALSE;
|
|
|
|
DCOBJA dov(hdc); // Use ALTLOCK
|
|
|
|
ASSERTGDI(dov.bValid(), "GreIntersectVisRect: Bad hdc\n");
|
|
|
|
if (dov.bValid()) // don't trust them the DC to be valid
|
|
{
|
|
// We invoke the 'dlo(po)' devlock form instead of 'dlo(dco)'
|
|
// to avoid the bCompute that the latter does:
|
|
|
|
PDEVOBJ po(dov.hdev());
|
|
DEVLOCKOBJ dlo(po);
|
|
|
|
ASSERTDEVLOCK(dov.pdc);
|
|
|
|
if (dlo.bValid())
|
|
{
|
|
RGNOBJ ro(dov.pdc->prgnVis());
|
|
|
|
ERECTL ercl(xLeft, yTop, xRight, yBottom);
|
|
|
|
RGNMEMOBJTMP rmo;
|
|
RGNMEMOBJTMP rmo2(ro.sizeRgn());
|
|
|
|
if (!rmo.bValid() || !rmo2.bValid())
|
|
{
|
|
SAVE_ERROR_CODE(ERROR_NOT_ENOUGH_MEMORY);
|
|
}
|
|
else
|
|
{
|
|
rmo.vSet((RECTL *) &ercl);
|
|
rmo2.vCopy(ro);
|
|
|
|
if (ro.iCombine(rmo, rmo2, RGN_AND) != ERROR)
|
|
{
|
|
dov.pdc->prgnVis(ro.prgnGet());
|
|
ro.prgnGet()->vStamp();
|
|
dov.pdc->vReleaseRao();
|
|
|
|
bRes = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
RGNLOG rl((HRGN) dov.pdc->prgnVis(),0,"GreIntersectVisRect",(LONG)hdc);
|
|
rl.vRet((LONG)bRes);
|
|
}
|
|
return(bRes);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* HRGN GreSelectVisRgn(hdc,hrgn,fl)
|
|
*
|
|
* Select the region as the new vis region
|
|
*
|
|
* flags - only one of these may be passed in
|
|
*
|
|
* SVR_COPYNEW - make a copy of region passed in, deletes the old one
|
|
* SVR_DELETEOLD - use the select rgn, delete the old one
|
|
* SVR_SWAP - swaps the contents of the hrgn and the visrgn
|
|
* SVR_ORIGIN - just set the origin
|
|
*
|
|
* Warnings:
|
|
* This is a PRIVATE USER API.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
BOOL
|
|
GreSelectVisRgn(
|
|
HDC hdc,
|
|
HRGN hrgn,
|
|
PRECTL prcl,
|
|
VIS_REGION_SELECT fl)
|
|
{
|
|
|
|
|
|
RGNLOG rl(hrgn,NULL,"GreSelectVisRgn",(LONG)hdc,(LONG)fl);
|
|
|
|
ASSERTGDI((fl == SVR_COPYNEW ) ||
|
|
(fl == SVR_DELETEOLD) ||
|
|
(fl == SVR_SWAP ) ||
|
|
(fl == SVR_ORIGIN ), "GreSelectVisRgn - invalid fl\n");
|
|
|
|
BOOL bRet;
|
|
|
|
//
|
|
// Share Lock DC
|
|
//
|
|
|
|
DCOBJA dco(hdc);
|
|
PREGION prgnOld;
|
|
PREGION prgn;
|
|
|
|
ASSERTDEVLOCK(dco.pdc);
|
|
|
|
//
|
|
// Always validate input hdc
|
|
//
|
|
|
|
if (!dco.bValid())
|
|
{
|
|
RIP("GDISRV!GreSelectVisRgn: Bad hdc");
|
|
bRet = FALSE;
|
|
}
|
|
else
|
|
{
|
|
if (prcl != NULL)
|
|
{
|
|
dco.erclWindow() = *(ERECTL *) prcl;
|
|
dco.pdc->vCalcFillOrigin();
|
|
|
|
if (fl == SVR_ORIGIN)
|
|
{
|
|
rl.vRet((LONG)TRUE);
|
|
return(TRUE);
|
|
}
|
|
}
|
|
|
|
ASSERTGDI(fl != SVR_ORIGIN,"GreSelectVisRgn - fl = SVR_ORIGIN\n");
|
|
|
|
bRet = TRUE;
|
|
|
|
//
|
|
// Always nuke the Rao
|
|
//
|
|
|
|
dco.pdc->vReleaseRao();
|
|
|
|
BOOL bDeleteOld = TRUE;
|
|
|
|
if (hrgn != (HRGN) NULL)
|
|
{
|
|
//
|
|
// The incoming region may be some random thing, make it lockable
|
|
//
|
|
|
|
GreSetRegionOwner(hrgn, OBJECT_OWNER_PUBLIC);
|
|
|
|
RGNOBJAPI ro(hrgn,FALSE);
|
|
if (ro.bValid())
|
|
{
|
|
switch (fl)
|
|
{
|
|
case SVR_COPYNEW:
|
|
{
|
|
//
|
|
// We need to make a copy of the new one and delete the old one
|
|
//
|
|
|
|
RGNMEMOBJ rmo(ro.sizeRgn());
|
|
|
|
if (!rmo.bValid())
|
|
{
|
|
prgn = prgnDefault;
|
|
}
|
|
else
|
|
{
|
|
rmo.vCopy(ro);
|
|
prgn = rmo.prgnGet();
|
|
}
|
|
}
|
|
break;
|
|
|
|
case SVR_SWAP:
|
|
{
|
|
//
|
|
// we need to just swap handles. No deletion.
|
|
//
|
|
|
|
prgn = dco.pdc->prgnVis();
|
|
|
|
if (prgn == NULL)
|
|
{
|
|
prgn = prgnDefault;
|
|
}
|
|
|
|
//
|
|
// don't swap out prgnDefault
|
|
//
|
|
|
|
if (prgn != prgnDefault)
|
|
{
|
|
RGNOBJ roVis(prgn);
|
|
ro.bSwap(&roVis);
|
|
|
|
//
|
|
// roVis now contains the new vis rgn and the old visrgn
|
|
// is associated with hrgn.
|
|
//
|
|
|
|
prgn = roVis.prgnGet();
|
|
|
|
bDeleteOld = FALSE;
|
|
}
|
|
else
|
|
{
|
|
bRet = FALSE;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case SVR_DELETEOLD:
|
|
|
|
//
|
|
// delete the old handle but keep the region
|
|
//
|
|
|
|
prgn = ro.prgnGet();
|
|
|
|
if (ro.bDeleteHandle())
|
|
ro.vSetRgn(NULL);
|
|
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
RIP("Bad hrgn");
|
|
prgn = prgnDefault;
|
|
}
|
|
|
|
// see if we need to delete the old one
|
|
|
|
if (bDeleteOld)
|
|
{
|
|
dco.pdc->vReleaseVis();
|
|
}
|
|
|
|
// set the new one in.
|
|
|
|
dco.pdc->prgnVis(prgn);
|
|
prgn->vStamp();
|
|
}
|
|
else
|
|
{
|
|
|
|
//
|
|
// User called GreSelectVisRgn after CreateRectRgn without
|
|
// checking return value, so may have NULL hrgn here.
|
|
//
|
|
|
|
#if DBG
|
|
|
|
if (fl != SVR_DELETEOLD)
|
|
{
|
|
WARNING("GreSelectVisRgn - fl != SVR_DELETEOLD");
|
|
}
|
|
|
|
#endif
|
|
|
|
dco.pdc->vReleaseVis();
|
|
dco.pdc->bSetDefaultRegion();
|
|
}
|
|
}
|
|
|
|
rl.vRet((LONG)bRet);
|
|
return(bRet);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* GreCopyVisVisRgn()
|
|
*
|
|
* History:
|
|
* 11-Jan-1995 -by- Eric Kutter [erick]
|
|
* Wrote it.
|
|
\**************************************************************************/
|
|
|
|
int GreCopyVisRgn(
|
|
HDC hdc,
|
|
HRGN hrgn)
|
|
{
|
|
|
|
RGNLOG rl(hrgn,NULL,"GreCopyVisRgn",(LONG)hdc,0);
|
|
|
|
int iRet = ERROR;
|
|
|
|
DCOBJA dco(hdc); // Use ALT_LOCK on DC
|
|
RGNOBJAPI ro(hrgn,FALSE);
|
|
|
|
ASSERTDEVLOCK(dco.pdc);
|
|
|
|
if (dco.bValid() && ro.bValid())
|
|
{
|
|
RGNOBJ roVis(dco.pdc->prgnVis());
|
|
if (roVis.bValid() && ro.bCopy(roVis))
|
|
iRet = ro.iComplexity();
|
|
}
|
|
|
|
return(iRet);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* LONG GreGetClipBox(hdc,prcl,fXForm)
|
|
*
|
|
* Get the bounding box of the clip region
|
|
*
|
|
\**************************************************************************/
|
|
|
|
int
|
|
APIENTRY
|
|
GreGetClipBox(
|
|
HDC hdc,
|
|
LPRECT prcl,
|
|
BOOL fXForm)
|
|
{
|
|
int iRet = ERROR;
|
|
|
|
DCOBJ dor(hdc);
|
|
|
|
if (dor.bValid())
|
|
{
|
|
DEVLOCKOBJ dlo(dor);
|
|
|
|
if (!dlo.bValid())
|
|
{
|
|
prcl->left = 0; // Make it a 'simple' empty rectangle
|
|
prcl->right = 0;
|
|
prcl->top = 0;
|
|
prcl->bottom = 0;
|
|
|
|
if (dor.bFullScreen())
|
|
iRet = NULLREGION;
|
|
}
|
|
else
|
|
{
|
|
RGNOBJ ro(dor.prgnEffRao());
|
|
|
|
ro.vGet_rcl((RECTL *) prcl);
|
|
|
|
// First convert from screen to device coordinates
|
|
|
|
if ((prcl->left >= prcl->right) || (prcl->top >= prcl->bottom))
|
|
{
|
|
prcl->left = 0; // Make it a 'simple' empty rectangle
|
|
prcl->right = 0;
|
|
prcl->top = 0;
|
|
prcl->bottom = 0;
|
|
}
|
|
else
|
|
{
|
|
*(ERECTL *)prcl -= dor.eptlOrigin();
|
|
|
|
// If requested, convert from device to logical coordinates.
|
|
|
|
if (fXForm)
|
|
{
|
|
EXFORMOBJ xfoDtoW(dor, DEVICE_TO_WORLD);
|
|
|
|
if (xfoDtoW.bValid())
|
|
{
|
|
xfoDtoW.bXform(*(ERECTL *)prcl);
|
|
}
|
|
}
|
|
}
|
|
|
|
iRet = ro.iComplexity();
|
|
}
|
|
}
|
|
return(iRet);
|
|
}
|
|
|
|
/******************************Public*Routine******************************\
|
|
* int GreSubtractRgnRectList(hrgn, prcl, arcl, crcl)
|
|
*
|
|
* Quickly subtract the list of rectangles from the first rectangle to
|
|
* produce a region.
|
|
*
|
|
\**************************************************************************/
|
|
|
|
int
|
|
GreSubtractRgnRectList(
|
|
HRGN hrgn,
|
|
LPRECT prcl,
|
|
LPRECT arcl,
|
|
int crcl)
|
|
{
|
|
RGNLOG rl(hrgn,NULL,"GreSubtractRgnRectList",crcl);
|
|
|
|
RGNOBJAPI ro(hrgn,FALSE);
|
|
int iRet;
|
|
|
|
if (!ro.bValid() || !ro.bSubtract((RECTL *) prcl, (RECTL *) arcl, crcl))
|
|
{
|
|
// If bSubtract fails, clean up the target region for USER.
|
|
|
|
if (ro.bValid())
|
|
ro.vSet();
|
|
|
|
iRet = ERROR;
|
|
}
|
|
else
|
|
{
|
|
iRet = ro.iComplexity();
|
|
}
|
|
|
|
rl.vRet(iRet);
|
|
return(iRet);
|
|
}
|