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-rw-r--r--nx-X11/programs/Xserver/Xprint/ValTree.c193
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diff --git a/nx-X11/programs/Xserver/Xprint/ValTree.c b/nx-X11/programs/Xserver/Xprint/ValTree.c
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--- a/nx-X11/programs/Xserver/Xprint/ValTree.c
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-/* $Xorg: ValTree.c,v 1.3 2000/08/17 19:48:06 cpqbld Exp $ */
-/*
-(c) Copyright 1996 Hewlett-Packard Company
-(c) Copyright 1996 International Business Machines Corp.
-(c) Copyright 1996 Sun Microsystems, Inc.
-(c) Copyright 1996 Novell, Inc.
-(c) Copyright 1996 Digital Equipment Corp.
-(c) Copyright 1996 Fujitsu Limited
-(c) Copyright 1996 Hitachi, Ltd.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the names of the copyright holders shall
-not be used in advertising or otherwise to promote the sale, use or other
-dealings in this Software without prior written authorization from said
-copyright holders.
-*/
-/* $XFree86$ */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include "scrnintstr.h"
-#include "validate.h"
-#include "windowstr.h"
-#include "mi.h"
-#include "regionstr.h"
-#include "mivalidate.h"
-
-/*
- * XpValidateTree - a validateTree routine which ignores overlapping
- * top-level windows when computing the clip lists for such windows.
- * This can be used by any driver which maintains a separate memory
- * store for each top-level window (with its respective children).
- * If the pParent is not the root window, then miValidateTree
- * is used unmodified.
- *
- * The strategy if pParent is the root is to save off the
- * current values of pParent->firstChild and pParent->lastChild,
- * replacing both with the single child of interest. We save off
- * pChild->prevSib and pChild->nextSib, and replace them with NullWindow.
- * We save off pParent->clipList, and replace it with
- * pParent->winSize - pChild->winSize. We then call miValidateTree
- * to do the needed ComputeClips on the pChild's heirarchy.
- * pParent's clipList is then recomputed based on the sizes
- * of its children, and the saved pointers are restored.
- * The trees associated with the siblings of pChild must be descended
- * and cleaned of any marks (i.e. the valdata pointer freed, and set to NULL),
- * and pParent' AfterValidate structure's exposed field must be updated.
- */
-/*ARGSUSED*/
-int
-XpValidateTree (pParent, pChild, kind)
- WindowPtr pParent; /* Parent to validate */
- WindowPtr pChild; /* First child of pParent that was
- * affected */
- VTKind kind; /* What kind of configuration caused call */
-{
- RegionRec origPrntClip; /* orig clipList for parent */
- RegionRec childClip; /* The new borderClip for the current
- * child */
- RegionRec tmpPrntClip; /* parent clipList - child borderClip */
- RegionRec exposed; /* For intermediate calculations */
- register ScreenPtr pScreen;
- register WindowPtr pWin;
- Bool overlap;
- int viewvals;
- Bool forward;
-
- WindowPtr origFirstChild, origLastChild, origPrevSib, origNextSib;
-
- /*
- * If we're validating something other than a top-level window,
- * then just invoke miValidateTree.
- */
- if(pParent->parent != NullWindow)
- return miValidateTree(pParent, pChild, kind);
-
- /*
- * If it's a stack change of top levels then it's a no-op for
- * this scheme, so we just clean up any marks on windows and return.
- */
- if(kind == VTStack)
- {
- CleanMarks(pParent);
- return 1;
- }
-
- pScreen = pParent->drawable.pScreen;
- if (pChild == NullWindow)
- pChild = pParent->firstChild;
-
- /* Save off the existing window heirarchy */
- origFirstChild = pParent->firstChild;
- origLastChild = pParent->lastChild;
- origPrevSib = pChild->prevSib;
- origNextSib = pChild->nextSib;
- pParent->firstChild = pChild;
- pParent->lastChild = pChild;
- pChild->prevSib = NullWindow;
- pChild->nextSib = NullWindow;
-
- /*
- * Set pParent's clipList to be its winSize minus the pChild's
- * borderSize.
- */
- origPrntClip = pParent->clipList;
- REGION_NULL(pScreen, &tmpPrntClip);
- REGION_SUBRACT(pScreen, &tmpPrntClip, &pParent->winSize,
- &pChild->borderSize);
- pParent->clipList = tmpPrntClip;
-
- /*
- * Call miValidateTree on the pruned tree.
- */
- (void) miValidateTree(pParent, pChild, kind);
-
- /* Restore the saved heirarchy */
- pChild->prevSib = origPrevSib;
- pChild->nextSib = origNextSib;
- pParent->firstChild = origFirstChild;
- pParent->lastChild = origLastChild;
-
- /*
- * Compute pParent's clipList by taking its winSize and subracting
- * the borderSize of each of its children.
- */
- for(pWin = pParent->firstChild,
- REGION_COPY(pScreen, &pParent->clipList, &pParent->winSize);
- pWin != NullWindow;
- pWin = pWin->nextSib)
- {
- REGION_SUBTRACT(pScreen, &pParent->clipList, &pParent->clipList,
- &pWin->borderSize);
- }
-
- /*
- * Compute pParent's AfterValidate structure by subracting the original
- * clipList from the newly computed clipList.
- */
- REGION_NULL(pScreen, &pParent->valdata->after.exposed);
- REGION_SUBTRACT(pScreen, &pParent->valdata->after.exposed,
- &pParent->clipList, &origPrntClip);
-
- /*
- * Remove the marks from all but pParent and pChild's heirarchy.
- * i.e. from all of pChild's siblings and their children.
- */
- for(pWin = pParent->firstChild; pWin != NullWindow; pWin = pWin->nextSib)
- {
- WindowPtr pCurChild = pWin;
-
- if(pCurChild == pChild)
- continue;
-
- while (1)
- {
- if(pCurChild->valdata)
- {
- xfree(pCurChild->valdata);
- pCurChild->valdata = (ValidatePtr)NULL;
- }
-
- if (pCurChild->firstChild)
- {
- pCurChild = pCurChild->firstChild;
- continue;
- }
- while (!pCurChild->nextSib && (pCurChild != pWin))
- pCurChild = pCurChild->parent;
- if (pCurChild == pWin)
- break;
- pCurChild = pCurChild->nextSib;
- }
- }
-}