svn merge ^/branches/released

1 files changed, 3886 insertions, 3881 deletions

diff --git a/xorg-server/dix/window.c b/xorg-server/dix/window.c
index caff1cbff..87502a9d0 100644
--- a/xorg-server/dix/window.c
+++ b/xorg-server/dix/window.c
@@ -1,3881 +1,3886 @@
-/*
-
-Copyright (c) 2006, Red Hat, Inc.
-
-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 (including the next
-paragraph) 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 AUTHORS OR 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.
-
-Copyright 1987, 1998  The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-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 OPEN GROUP 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 name of The Open Group shall
-not be used in advertising or otherwise to promote the sale, use or
-other dealings in this Software without prior written authorization
-from The Open Group.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
-
-			All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-*/
-
-/* The panoramix components contained the following notice */
-/*****************************************************************
-
-Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
-
-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.
-
-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
-DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
-BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 name of Digital Equipment Corporation
-shall not be used in advertising or otherwise to promote the sale, use or other
-dealings in this Software without prior written authorization from Digital
-Equipment Corporation.
-
-******************************************************************/
-
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "misc.h"
-#include "scrnintstr.h"
-#include "os.h"
-#include "regionstr.h"
-#include "validate.h"
-#include "windowstr.h"
-#include "input.h"
-#include "inputstr.h"
-#include "resource.h"
-#include "colormapst.h"
-#include "cursorstr.h"
-#include "dixstruct.h"
-#include "gcstruct.h"
-#include "servermd.h"
-#ifdef PANORAMIX
-#include "panoramiX.h"
-#include "panoramiXsrv.h"
-#endif
-#include "dixevents.h"
-#include "globals.h"
-#include "mi.h" /* miPaintWindow */
-
-#include "privates.h"
-#include "xace.h"
-
-/******
- * Window stuff for server 
- *
- *    CreateRootWindow, CreateWindow, ChangeWindowAttributes,
- *    GetWindowAttributes, DeleteWindow, DestroySubWindows,
- *    HandleSaveSet, ReparentWindow, MapWindow, MapSubWindows,
- *    UnmapWindow, UnmapSubWindows, ConfigureWindow, CirculateWindow,
- *    ChangeWindowDeviceCursor
- ******/
-
-static unsigned char _back_lsb[4] = {0x88, 0x22, 0x44, 0x11};
-static unsigned char _back_msb[4] = {0x11, 0x44, 0x22, 0x88};
-
-static Bool WindowParentHasDeviceCursor(WindowPtr pWin, 
-                                        DeviceIntPtr pDev, 
-                                        CursorPtr pCurs);
-static Bool 
-WindowSeekDeviceCursor(WindowPtr pWin, 
-                       DeviceIntPtr pDev, 
-                       DevCursNodePtr* pNode, 
-                       DevCursNodePtr* pPrev);
-
-int screenIsSaved = SCREEN_SAVER_OFF;
-
-ScreenSaverStuffRec savedScreenInfo[MAXSCREENS];
-
-static int FocusPrivatesKeyIndex;
-DevPrivateKey FocusPrivatesKey = &FocusPrivatesKeyIndex;
-
-static Bool TileScreenSaver(int i, int kind);
-
-
-#define INPUTONLY_LEGAL_MASK (CWWinGravity | CWEventMask | \
-			      CWDontPropagate | CWOverrideRedirect | CWCursor )
-
-#define BOXES_OVERLAP(b1, b2) \
-      (!( ((b1)->x2 <= (b2)->x1)  || \
-	( ((b1)->x1 >= (b2)->x2)) || \
-	( ((b1)->y2 <= (b2)->y1)) || \
-	( ((b1)->y1 >= (b2)->y2)) ) )
-
-#define RedirectSend(pWin) \
-    ((pWin->eventMask|wOtherEventMasks(pWin)) & SubstructureRedirectMask)
-
-#define SubSend(pWin) \
-    ((pWin->eventMask|wOtherEventMasks(pWin)) & SubstructureNotifyMask)
-
-#define StrSend(pWin) \
-    ((pWin->eventMask|wOtherEventMasks(pWin)) & StructureNotifyMask)
-
-#define SubStrSend(pWin,pParent) (StrSend(pWin) || SubSend(pParent))
-
-#ifdef DEBUG
-/******
- * PrintWindowTree
- *    For debugging only
- ******/
-
-static void
-PrintChildren(WindowPtr p1, int indent)
-{
-    WindowPtr p2;
-    int i;
-
-    while (p1)
-    {
-	p2 = p1->firstChild;
-        ErrorF("[dix] ");
-	for (i=0; i<indent; i++) ErrorF(" ");
-	ErrorF("%lx\n", p1->drawable.id);
-	miPrintRegion(&p1->clipList);
-	PrintChildren(p2, indent+4);
-	p1 = p1->nextSib;
-    }
-}
-
-static void
-PrintWindowTree(void)
-{
-    int i;
-    WindowPtr pWin, p1;
-
-    for (i=0; i<screenInfo.numScreens; i++)
-    {
-	ErrorF("[dix] WINDOW %d\n", i);
-	pWin = WindowTable[i];
-	miPrintRegion(&pWin->clipList);
-	p1 = pWin->firstChild;
-	PrintChildren(p1, 4);
-    }
-}
-#endif
-
-int
-TraverseTree(WindowPtr pWin, VisitWindowProcPtr func, pointer data)
-{
-    int result;
-    WindowPtr pChild;
-
-    if (!(pChild = pWin))
-       return(WT_NOMATCH);
-    while (1)
-    {
-	result = (* func)(pChild, data);
-	if (result == WT_STOPWALKING)
-	    return(WT_STOPWALKING);
-	if ((result == WT_WALKCHILDREN) && pChild->firstChild)
-	{
-	    pChild = pChild->firstChild;
-	    continue;
-	}
-	while (!pChild->nextSib && (pChild != pWin))
-	    pChild = pChild->parent;
-	if (pChild == pWin)
-	    break;
-	pChild = pChild->nextSib;
-    }
-    return(WT_NOMATCH);
-}
-
-/*****
- * WalkTree
- *   Walk the window tree, for SCREEN, preforming FUNC(pWin, data) on
- *   each window.  If FUNC returns WT_WALKCHILDREN, traverse the children,
- *   if it returns WT_DONTWALKCHILDREN, dont.  If it returns WT_STOPWALKING
- *   exit WalkTree.  Does depth-first traverse.
- *****/
-
-int
-WalkTree(ScreenPtr pScreen, VisitWindowProcPtr func, pointer data)
-{
-    return(TraverseTree(WindowTable[pScreen->myNum], func, data));
-}
-
-/* hack for forcing backing store on all windows */
-int	defaultBackingStore = NotUseful;
-/* hack to force no backing store */
-Bool	disableBackingStore = FALSE;
-Bool	enableBackingStore = FALSE;
-
-static void
-SetWindowToDefaults(WindowPtr pWin)
-{
-    pWin->prevSib = NullWindow;
-    pWin->firstChild = NullWindow;
-    pWin->lastChild = NullWindow;
-
-    pWin->valdata = (ValidatePtr)NULL;
-    pWin->optional = (WindowOptPtr)NULL;
-    pWin->cursorIsNone = TRUE;
-
-    pWin->backingStore = NotUseful;
-    pWin->DIXsaveUnder = FALSE;
-    pWin->backStorage = (pointer) NULL;
-
-    pWin->mapped = FALSE;	    /* off */
-    pWin->realized = FALSE;	/* off */
-    pWin->viewable = FALSE;
-    pWin->visibility = VisibilityNotViewable;
-    pWin->overrideRedirect = FALSE;
-    pWin->saveUnder = FALSE;
-
-    pWin->bitGravity = ForgetGravity;
-    pWin->winGravity = NorthWestGravity;
-
-    pWin->eventMask = 0;
-    pWin->deliverableEvents = 0;
-    pWin->dontPropagate = 0;
-    pWin->forcedBS = FALSE;
-    pWin->redirectDraw = RedirectDrawNone;
-    pWin->forcedBG = FALSE;
-
-#ifdef ROOTLESS
-    pWin->rootlessUnhittable = FALSE;
-#endif
-}
-
-static void
-MakeRootTile(WindowPtr pWin)
-{
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    GCPtr pGC;
-    unsigned char back[128];
-    int len = BitmapBytePad(sizeof(long));
-    unsigned char *from, *to;
-    int i, j;
-
-    pWin->background.pixmap = (*pScreen->CreatePixmap)(pScreen, 4, 4,
-						    pScreen->rootDepth, 0);
-
-    pWin->backgroundState = BackgroundPixmap;
-    pGC = GetScratchGC(pScreen->rootDepth, pScreen);
-    if (!pWin->background.pixmap || !pGC)
-	FatalError("could not create root tile");
-
-    {
-	CARD32 attributes[2];
-
-	attributes[0] = pScreen->whitePixel;
-	attributes[1] = pScreen->blackPixel;
-
-	(void)ChangeGC(pGC, GCForeground | GCBackground, attributes);
-    }
-
-   ValidateGC((DrawablePtr)pWin->background.pixmap, pGC);
-
-   from = (screenInfo.bitmapBitOrder == LSBFirst) ? _back_lsb : _back_msb;
-   to = back;
-
-   for (i = 4; i > 0; i--, from++)
-	for (j = len; j > 0; j--)
-	    *to++ = *from;
-
-   (*pGC->ops->PutImage)((DrawablePtr)pWin->background.pixmap, pGC, 1,
-		    0, 0, len, 4, 0, XYBitmap, (char *)back);
-
-   FreeScratchGC(pGC);
-
-}
-
-/*****
- * CreateRootWindow
- *    Makes a window at initialization time for specified screen
- *****/
-
-Bool
-CreateRootWindow(ScreenPtr pScreen)
-{
-    WindowPtr	pWin;
-    BoxRec	box;
-    PixmapFormatRec *format;
-
-    pWin = xalloc(sizeof(WindowRec));
-    if (!pWin)
-	return FALSE;
-
-    savedScreenInfo[pScreen->myNum].pWindow = NULL;
-    savedScreenInfo[pScreen->myNum].wid = FakeClientID(0);
-    savedScreenInfo[pScreen->myNum].ExternalScreenSaver = NULL;
-    screenIsSaved = SCREEN_SAVER_OFF;
-
-    WindowTable[pScreen->myNum] = pWin;
-
-    pWin->drawable.pScreen = pScreen;
-    pWin->drawable.type = DRAWABLE_WINDOW;
-    pWin->devPrivates = NULL;
-
-    pWin->drawable.depth = pScreen->rootDepth;
-    for (format = screenInfo.formats;
-	 format->depth != pScreen->rootDepth;
-	 format++)
-	;
-    pWin->drawable.bitsPerPixel = format->bitsPerPixel;
-
-    pWin->drawable.serialNumber = NEXT_SERIAL_NUMBER;
-
-    pWin->parent = NullWindow;
-    SetWindowToDefaults(pWin);
-
-    pWin->optional = xalloc (sizeof (WindowOptRec));
-    if (!pWin->optional)
-        return FALSE;
-
-    pWin->optional->dontPropagateMask = 0;
-    pWin->optional->otherEventMasks = 0;
-    pWin->optional->otherClients = NULL;
-    pWin->optional->passiveGrabs = NULL;
-    pWin->optional->userProps = NULL;
-    pWin->optional->backingBitPlanes = ~0L;
-    pWin->optional->backingPixel = 0;
-    pWin->optional->boundingShape = NULL;
-    pWin->optional->clipShape = NULL;
-    pWin->optional->inputShape = NULL;
-    pWin->optional->inputMasks = NULL;
-    pWin->optional->deviceCursors = NULL;
-    pWin->optional->colormap = pScreen->defColormap;
-    pWin->optional->visual = pScreen->rootVisual;
-
-    pWin->nextSib = NullWindow;
-
-    pWin->drawable.id = FakeClientID(0);
-
-    pWin->origin.x = pWin->origin.y = 0;
-    pWin->drawable.height = pScreen->height;
-    pWin->drawable.width = pScreen->width;
-    pWin->drawable.x = pWin->drawable.y = 0;
-
-    box.x1 = 0;
-    box.y1 = 0;
-    box.x2 = pScreen->width;
-    box.y2 = pScreen->height;
-    REGION_INIT(pScreen, &pWin->clipList, &box, 1);
-    REGION_INIT(pScreen, &pWin->winSize, &box, 1);
-    REGION_INIT(pScreen, &pWin->borderSize, &box, 1);
-    REGION_INIT(pScreen, &pWin->borderClip, &box, 1);
-
-    pWin->drawable.class = InputOutput;
-    pWin->optional->visual = pScreen->rootVisual;
-
-    pWin->backgroundState = BackgroundPixel;
-    pWin->background.pixel = pScreen->whitePixel;
-
-    pWin->borderIsPixel = TRUE;
-    pWin->border.pixel = pScreen->blackPixel;
-    pWin->borderWidth = 0;
-
-    /*  security creation/labeling check
-     */
-    if (XaceHook(XACE_RESOURCE_ACCESS, serverClient, pWin->drawable.id,
-		 RT_WINDOW, pWin, RT_NONE, NULL, DixCreateAccess))
-	return FALSE;
-
-    if (!AddResource(pWin->drawable.id, RT_WINDOW, (pointer)pWin))
-	return FALSE;
-
-    if (disableBackingStore)
-	pScreen->backingStoreSupport = NotUseful;
-    if (enableBackingStore)
-	pScreen->backingStoreSupport = Always;
-
-    pScreen->saveUnderSupport = NotUseful;
-
-    return TRUE;
-}
-
-void
-InitRootWindow(WindowPtr pWin)
-{
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    int backFlag = CWBorderPixel | CWCursor | CWBackingStore;
-
-    if (!(*pScreen->CreateWindow)(pWin))
-	return; /* XXX */
-    (*pScreen->PositionWindow)(pWin, 0, 0);
-
-    pWin->cursorIsNone = FALSE;
-    pWin->optional->cursor = rootCursor;
-    rootCursor->refcnt++;
-
-
-    if (party_like_its_1989) {
-        MakeRootTile(pWin);
-        backFlag |= CWBackPixmap;
-    } else {
-	if (whiteRoot)
-            pWin->background.pixel = pScreen->whitePixel;
-        else
-            pWin->background.pixel = pScreen->blackPixel;
-        backFlag |= CWBackPixel;
-    } 
-
-    pWin->backingStore = defaultBackingStore;
-    pWin->forcedBS = (defaultBackingStore != NotUseful);
-    /* We SHOULD check for an error value here XXX */
-    (*pScreen->ChangeWindowAttributes)(pWin, backFlag);
-
-    MapWindow(pWin, serverClient);
-}
-
-/* Set the region to the intersection of the rectangle and the
- * window's winSize.  The window is typically the parent of the
- * window from which the region came.
- */
-
-static void
-ClippedRegionFromBox(WindowPtr pWin, RegionPtr Rgn,
-                     int x, int y,
-                     int w, int h)
-{
-    ScreenPtr pScreen;
-    BoxRec box;
-
-    pScreen = pWin->drawable.pScreen;
-
-    box = *(REGION_EXTENTS(pScreen, &pWin->winSize));
-    /* we do these calculations to avoid overflows */
-    if (x > box.x1)
-	box.x1 = x;
-    if (y > box.y1)
-	box.y1 = y;
-    x += w;
-    if (x < box.x2)
-	box.x2 = x;
-    y += h;
-    if (y < box.y2)
-	box.y2 = y;
-    if (box.x1 > box.x2)
-	box.x2 = box.x1;
-    if (box.y1 > box.y2)
-	box.y2 = box.y1;
-    REGION_RESET(pScreen, Rgn, &box);
-    REGION_INTERSECT(pScreen, Rgn, Rgn, &pWin->winSize);
-}
-
-static RealChildHeadProc realChildHeadProc = NULL;
-
-void
-RegisterRealChildHeadProc (RealChildHeadProc proc)
-{
-    realChildHeadProc = proc;
-}
-
-
-WindowPtr
-RealChildHead(WindowPtr pWin)
-{
-    if (realChildHeadProc) {
-	return realChildHeadProc (pWin);
-    }
-
-    if (!pWin->parent &&
-	(screenIsSaved == SCREEN_SAVER_ON) &&
-	(HasSaverWindow (pWin->drawable.pScreen->myNum)))
-	return (pWin->firstChild);
-    else
-	return (NullWindow);
-}
-
-/*****
- * CreateWindow
- *    Makes a window in response to client request 
- *****/
-
-WindowPtr
-CreateWindow(Window wid, WindowPtr pParent, int x, int y, unsigned w,
-             unsigned h, unsigned bw, unsigned class, Mask vmask, XID *vlist,
-             int depth, ClientPtr client, VisualID visual, int *error)
-{
-    WindowPtr pWin;
-    WindowPtr pHead;
-    ScreenPtr pScreen;
-    xEvent event;
-    int idepth, ivisual;
-    Bool fOK;
-    DepthPtr pDepth;
-    PixmapFormatRec *format;
-    WindowOptPtr ancwopt;
-
-    if (class == CopyFromParent)
-	class = pParent->drawable.class;
-
-    if ((class != InputOutput) && (class != InputOnly))
-    {
-	*error = BadValue;
-	client->errorValue = class;
-	return NullWindow;
-    }
-
-    if ((class != InputOnly) && (pParent->drawable.class == InputOnly))
-    {
-	*error = BadMatch;
-	return NullWindow;
-    }
-
-    if ((class == InputOnly) && ((bw != 0) || (depth != 0)))
-    {
-	*error = BadMatch;
-	return NullWindow;
-    }
-
-    pScreen = pParent->drawable.pScreen;
-    if ((class == InputOutput) && (depth == 0))
-	 depth = pParent->drawable.depth;
-    ancwopt = pParent->optional;
-    if (!ancwopt)
-	ancwopt = FindWindowWithOptional(pParent)->optional;
-    if (visual == CopyFromParent) {
-	visual = ancwopt->visual;
-    }
-
-    /* Find out if the depth and visual are acceptable for this Screen */
-    if ((visual != ancwopt->visual) || (depth != pParent->drawable.depth))
-    {
-	fOK = FALSE;
-	for(idepth = 0; idepth < pScreen->numDepths; idepth++)
-	{
-	    pDepth = (DepthPtr) &pScreen->allowedDepths[idepth];
-	    if ((depth == pDepth->depth) || (depth == 0))
-	    {
-		for (ivisual = 0; ivisual < pDepth->numVids; ivisual++)
-		{
-		    if (visual == pDepth->vids[ivisual])
-		    {
-			fOK = TRUE;
-			break;
-		    }
-		}
-	    }
-	}
-	if (fOK == FALSE)
-	{
-	    *error = BadMatch;
-	    return NullWindow;
-	}
-    }
-
-    if (((vmask & (CWBorderPixmap | CWBorderPixel)) == 0) &&
-	(class != InputOnly) &&
-	(depth != pParent->drawable.depth))
-    {
-	*error = BadMatch;
-	return NullWindow;
-    }
-
-    if (((vmask & CWColormap) == 0) &&
-	(class != InputOnly) &&
-	((visual != ancwopt->visual) || (ancwopt->colormap == None)))
-    {
-	*error = BadMatch;
-	return NullWindow;
-    }
-
-    pWin = xalloc(sizeof(WindowRec));
-    if (!pWin)
-    {
-	*error = BadAlloc;
-	return NullWindow;
-    }
-    pWin->drawable = pParent->drawable;
-    pWin->devPrivates = NULL;
-    pWin->drawable.depth = depth;
-    if (depth == pParent->drawable.depth)
-	pWin->drawable.bitsPerPixel = pParent->drawable.bitsPerPixel;
-    else
-    {
-	for (format = screenInfo.formats; format->depth != depth; format++)
-	    ;
-	pWin->drawable.bitsPerPixel = format->bitsPerPixel;
-    }
-    if (class == InputOnly)
-	pWin->drawable.type = (short) UNDRAWABLE_WINDOW;
-    pWin->drawable.serialNumber = NEXT_SERIAL_NUMBER;
-
-    pWin->drawable.id = wid;
-    pWin->drawable.class = class;
-
-    pWin->parent = pParent;
-    SetWindowToDefaults(pWin);
-
-    if (visual != ancwopt->visual)
-    {
-	if (!MakeWindowOptional (pWin))
-	{
-	    xfree (pWin);
-	    *error = BadAlloc;
-	    return NullWindow;
-	}
-	pWin->optional->visual = visual;
-	pWin->optional->colormap = None;
-    }
-
-    pWin->borderWidth = bw;
-
-    /*  security creation/labeling check
-     */
-    *error = XaceHook(XACE_RESOURCE_ACCESS, client, wid, RT_WINDOW, pWin,
-		RT_WINDOW, pWin->parent, DixCreateAccess|DixSetAttrAccess);
-    if (*error != Success) {
-	xfree(pWin);
-	return NullWindow;
-    }
-
-    pWin->backgroundState = XaceBackgroundNoneState(pWin);
-    pWin->background.pixel = pScreen->whitePixel;
-
-    pWin->borderIsPixel = pParent->borderIsPixel;
-    pWin->border = pParent->border;
-    if (pWin->borderIsPixel == FALSE)
-	pWin->border.pixmap->refcnt++;
-		
-    pWin->origin.x = x + (int)bw;
-    pWin->origin.y = y + (int)bw;
-    pWin->drawable.width = w;
-    pWin->drawable.height = h;
-    pWin->drawable.x = pParent->drawable.x + x + (int)bw;
-    pWin->drawable.y = pParent->drawable.y + y + (int)bw;
-
-	/* set up clip list correctly for unobscured WindowPtr */
-    REGION_NULL(pScreen, &pWin->clipList);
-    REGION_NULL(pScreen, &pWin->borderClip);
-    REGION_NULL(pScreen, &pWin->winSize);
-    REGION_NULL(pScreen, &pWin->borderSize);
-
-    pHead = RealChildHead(pParent);
-    if (pHead)
-    {
-	pWin->nextSib = pHead->nextSib;
-	if (pHead->nextSib)
-	    pHead->nextSib->prevSib = pWin;
-	else
-	    pParent->lastChild = pWin;
-	pHead->nextSib = pWin;
-	pWin->prevSib = pHead;
-    }
-    else
-    {
-	pWin->nextSib = pParent->firstChild;
-	if (pParent->firstChild)
-	    pParent->firstChild->prevSib = pWin;
-	else
-	    pParent->lastChild = pWin;
-	pParent->firstChild = pWin;
-    }
-
-    SetWinSize (pWin);
-    SetBorderSize (pWin);
-
-    /* We SHOULD check for an error value here XXX */
-    if (!(*pScreen->CreateWindow)(pWin))
-    {
-	*error = BadAlloc;
-	DeleteWindow(pWin, None);
-	return NullWindow;
-    }
-    /* We SHOULD check for an error value here XXX */
-    (*pScreen->PositionWindow)(pWin, pWin->drawable.x, pWin->drawable.y);
-
-    if (!(vmask & CWEventMask))
-	RecalculateDeliverableEvents(pWin);
-
-    if (vmask)
-	*error = ChangeWindowAttributes(pWin, vmask, vlist, wClient (pWin));
-    else
-	*error = Success;
-
-    if (*error != Success)
-    {
-	DeleteWindow(pWin, None);
-	return NullWindow;
-    }
-    if (!(vmask & CWBackingStore) && (defaultBackingStore != NotUseful))
-    {
-	XID value = defaultBackingStore;
-	(void)ChangeWindowAttributes(pWin, CWBackingStore, &value, wClient (pWin));
-	pWin->forcedBS = TRUE;
-    }
-
-    if (SubSend(pParent))
-    {
-	memset(&event, 0, sizeof(xEvent));
-	event.u.u.type = CreateNotify;
-	event.u.createNotify.window = wid;
-	event.u.createNotify.parent = pParent->drawable.id;
-	event.u.createNotify.x = x;
-	event.u.createNotify.y = y;
-	event.u.createNotify.width = w;
-	event.u.createNotify.height = h;
-	event.u.createNotify.borderWidth = bw;
-	event.u.createNotify.override = pWin->overrideRedirect;
-	DeliverEvents(pParent, &event, 1, NullWindow);		
-    }
-    return pWin;
-}
-
-static void
-DisposeWindowOptional (WindowPtr pWin)
-{
-    if (!pWin->optional)
-	return;
-    /*
-     * everything is peachy.  Delete the optional record
-     * and clean up
-     */
-    if (pWin->optional->cursor)
-    {
-	FreeCursor (pWin->optional->cursor, (Cursor)0);
-	pWin->cursorIsNone = FALSE;
-    }
-    else
-	pWin->cursorIsNone = TRUE;
-
-    if (pWin->optional->deviceCursors)
-    {
-        DevCursorList pList;
-        DevCursorList pPrev;
-        pList = pWin->optional->deviceCursors;
-        while(pList)
-        {
-            if (pList->cursor)
-                FreeCursor(pList->cursor, (XID)0);
-            pPrev = pList;
-            pList = pList->next;
-            xfree(pPrev);
-        }
-        pWin->optional->deviceCursors = NULL;
-    }
-
-    xfree (pWin->optional);
-    pWin->optional = NULL;
-}
-
-static void
-FreeWindowResources(WindowPtr pWin)
-{
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-
-    DeleteWindowFromAnySaveSet(pWin);
-    DeleteWindowFromAnySelections(pWin);
-    DeleteWindowFromAnyEvents(pWin, TRUE);
-    REGION_UNINIT(pScreen, &pWin->clipList);
-    REGION_UNINIT(pScreen, &pWin->winSize);
-    REGION_UNINIT(pScreen, &pWin->borderClip);
-    REGION_UNINIT(pScreen, &pWin->borderSize);
-    if (wBoundingShape (pWin))
-	REGION_DESTROY(pScreen, wBoundingShape (pWin));
-    if (wClipShape (pWin))
-	REGION_DESTROY(pScreen, wClipShape (pWin));
-    if (wInputShape (pWin))
-	REGION_DESTROY(pScreen, wInputShape (pWin));
-    if (pWin->borderIsPixel == FALSE)
-	(*pScreen->DestroyPixmap)(pWin->border.pixmap);
-    if (pWin->backgroundState == BackgroundPixmap)
-	(*pScreen->DestroyPixmap)(pWin->background.pixmap);
-
-    DeleteAllWindowProperties(pWin);
-    /* We SHOULD check for an error value here XXX */
-    (*pScreen->DestroyWindow)(pWin);
-    DisposeWindowOptional (pWin);
-}
-
-static void
-CrushTree(WindowPtr pWin)
-{
-    WindowPtr pChild, pSib, pParent;
-    UnrealizeWindowProcPtr UnrealizeWindow;
-    xEvent event;
-
-    if (!(pChild = pWin->firstChild))
-	return;
-    UnrealizeWindow = pWin->drawable.pScreen->UnrealizeWindow;
-    while (1)
-    {
-	if (pChild->firstChild)
-	{
-	    pChild = pChild->firstChild;
-	    continue;
-	}
-	while (1)
-	{
-	    pParent = pChild->parent;
-	    if (SubStrSend(pChild, pParent))
-	    {
-		memset(&event, 0, sizeof(xEvent));
-		event.u.u.type = DestroyNotify;
-		event.u.destroyNotify.window = pChild->drawable.id;
-		DeliverEvents(pChild, &event, 1, NullWindow);
-	    }
-	    FreeResource(pChild->drawable.id, RT_WINDOW);
-	    pSib = pChild->nextSib;
-	    pChild->viewable = FALSE;
-	    if (pChild->realized)
-	    {
-		pChild->realized = FALSE;
-		(*UnrealizeWindow)(pChild);
-	    }
-	    FreeWindowResources(pChild);
-	    dixFreePrivates(pChild->devPrivates);
-	    xfree(pChild);
-	    if ( (pChild = pSib) )
-		break;
-	    pChild = pParent;
-	    pChild->firstChild = NullWindow;
-	    pChild->lastChild = NullWindow;
-	    if (pChild == pWin)
-		return;
-	}
-    }
-}
-	
-/*****
- *  DeleteWindow
- *	 Deletes child of window then window itself
- *	 If wid is None, don't send any events
- *****/
-
-int
-DeleteWindow(pointer value, XID wid)
- {
-    WindowPtr pParent;
-    WindowPtr pWin = (WindowPtr)value;
-    xEvent event;
-
-    UnmapWindow(pWin, FALSE);
-
-    CrushTree(pWin);
-
-    pParent = pWin->parent;
-    if (wid && pParent && SubStrSend(pWin, pParent))
-    {
-	memset(&event, 0, sizeof(xEvent));
-	event.u.u.type = DestroyNotify;
-	event.u.destroyNotify.window = pWin->drawable.id;
-	DeliverEvents(pWin, &event, 1, NullWindow);
-    }
-
-    FreeWindowResources(pWin);
-    if (pParent)
-    {
-	if (pParent->firstChild == pWin)
-	    pParent->firstChild = pWin->nextSib;
-	if (pParent->lastChild == pWin)
-	    pParent->lastChild = pWin->prevSib;
-	if (pWin->nextSib)
-	    pWin->nextSib->prevSib = pWin->prevSib;
-	if (pWin->prevSib)
-	    pWin->prevSib->nextSib = pWin->nextSib;
-    }
-    xfree(dixLookupPrivate(&pWin->devPrivates, FocusPrivatesKey));
-    dixFreePrivates(pWin->devPrivates);
-    xfree(pWin);
-    return Success;
-}
-
-int
-DestroySubwindows(WindowPtr pWin, ClientPtr client)
-{
-    /* XXX
-     * The protocol is quite clear that each window should be
-     * destroyed in turn, however, unmapping all of the first
-     * eliminates most of the calls to ValidateTree.  So,
-     * this implementation is incorrect in that all of the
-     * UnmapNotifies occur before all of the DestroyNotifies.
-     * If you care, simply delete the call to UnmapSubwindows.
-     */
-    UnmapSubwindows(pWin);
-    while (pWin->lastChild) {
-	int rc = XaceHook(XACE_RESOURCE_ACCESS, client,
-			  pWin->lastChild->drawable.id, RT_WINDOW,
-			  pWin->lastChild, RT_NONE, NULL, DixDestroyAccess);
-	if (rc != Success)
-	    return rc;
-	FreeResource(pWin->lastChild->drawable.id, RT_NONE);
-    }
-    return Success;
-}
-
-/*****
- *  ChangeWindowAttributes
- *   
- *  The value-mask specifies which attributes are to be changed; the
- *  value-list contains one value for each one bit in the mask, from least
- *  to most significant bit in the mask.  
- *****/
- 
-int
-ChangeWindowAttributes(WindowPtr pWin, Mask vmask, XID *vlist, ClientPtr client)
-{
-    XID *pVlist;
-    PixmapPtr pPixmap;
-    Pixmap pixID;
-    CursorPtr pCursor, pOldCursor;
-    Cursor cursorID;
-    WindowPtr pChild;
-    Colormap cmap;
-    ColormapPtr	pCmap;
-    xEvent xE;
-    int error, rc;
-    ScreenPtr pScreen;
-    Mask index2, tmask, vmaskCopy = 0;
-    unsigned int val;
-    Bool checkOptional = FALSE, borderRelative = FALSE;
-
-    if ((pWin->drawable.class == InputOnly) && (vmask & (~INPUTONLY_LEGAL_MASK)))
-	return BadMatch;
-
-    error = Success;
-    pScreen = pWin->drawable.pScreen;
-    pVlist = vlist;
-    tmask = vmask;
-    while (tmask)
-    {
-	index2 = (Mask) lowbit (tmask);
-	tmask &= ~index2;
-	switch (index2)
-	{
-	  case CWBackPixmap:
-	    pixID = (Pixmap )*pVlist;
-	    pVlist++;
-	    if (pWin->backgroundState == ParentRelative)
-		borderRelative = TRUE;
-	    if (pixID == None)
-	    {
-		if (pWin->backgroundState == BackgroundPixmap)
-		    (*pScreen->DestroyPixmap)(pWin->background.pixmap);
-		if (!pWin->parent)
-		    MakeRootTile(pWin);
-		else {
-		    pWin->backgroundState = XaceBackgroundNoneState(pWin);
-		    pWin->background.pixel = pScreen->whitePixel;
-		}
-	    }
-	    else if (pixID == ParentRelative)
-	    {
-		if (pWin->parent &&
-		    pWin->drawable.depth != pWin->parent->drawable.depth)
-		{
-		    error = BadMatch;
-		    goto PatchUp;
-		}
-		if (pWin->backgroundState == BackgroundPixmap)
-		    (*pScreen->DestroyPixmap)(pWin->background.pixmap);
-		if (!pWin->parent)
-		    MakeRootTile(pWin);
-		else
-		    pWin->backgroundState = ParentRelative;
-		borderRelative = TRUE;
-		/* Note that the parent's backgroundTile's refcnt is NOT
-		 * incremented. */
-	    }
-	    else
-	    {	
-		rc = dixLookupResourceByType((pointer *)&pPixmap, pixID, RT_PIXMAP,
-				       client, DixReadAccess);
-		if (rc == Success)
-		{
-		    if	((pPixmap->drawable.depth != pWin->drawable.depth) ||
-			 (pPixmap->drawable.pScreen != pScreen))
-		    {
-			error = BadMatch;
-			goto PatchUp;
-		    }
-		    if (pWin->backgroundState == BackgroundPixmap)
-			(*pScreen->DestroyPixmap)(pWin->background.pixmap);
-		    pWin->backgroundState = BackgroundPixmap;
-		    pWin->background.pixmap = pPixmap;
-		    pPixmap->refcnt++;
-		}
-		else
-		{
-		    error = (rc == BadValue) ? BadPixmap : rc;
-		    client->errorValue = pixID;
-		    goto PatchUp;
-		}
-	    }
-	    break;
-	  case CWBackPixel:
-	    if (pWin->backgroundState == ParentRelative)
-		borderRelative = TRUE;
-	    if (pWin->backgroundState == BackgroundPixmap)
-		(*pScreen->DestroyPixmap)(pWin->background.pixmap);
-	    pWin->backgroundState = BackgroundPixel;
-	    pWin->background.pixel = (CARD32 ) *pVlist;
-		   /* background pixel overrides background pixmap,
-		      so don't let the ddx layer see both bits */
-	    vmaskCopy &= ~CWBackPixmap;
-	    pVlist++;
-	    break;
-	  case CWBorderPixmap:
-	    pixID = (Pixmap ) *pVlist;
-	    pVlist++;
-	    if (pixID == CopyFromParent)
-	    {
-		if (!pWin->parent ||
-		    (pWin->drawable.depth != pWin->parent->drawable.depth))
-		{
-		    error = BadMatch;
-		    goto PatchUp;
-		}
-		if (pWin->parent->borderIsPixel == TRUE) {
-		    if (pWin->borderIsPixel == FALSE)
-			(*pScreen->DestroyPixmap)(pWin->border.pixmap);
-		    pWin->border = pWin->parent->border;
-		    pWin->borderIsPixel = TRUE;
-		    index2 = CWBorderPixel;
-		    break;
-		}
-		else
-		{
-		    pixID = pWin->parent->border.pixmap->drawable.id;
-		}
-	    }
-	    rc = dixLookupResourceByType((pointer *)&pPixmap, pixID, RT_PIXMAP,
-				   client, DixReadAccess);
-	    if (rc == Success)
-	    {
-		if ((pPixmap->drawable.depth != pWin->drawable.depth) ||
-		    (pPixmap->drawable.pScreen != pScreen))
-		{
-		    error = BadMatch;
-		    goto PatchUp;
-		}
-		if (pWin->borderIsPixel == FALSE)
-		    (*pScreen->DestroyPixmap)(pWin->border.pixmap);
-		pWin->borderIsPixel = FALSE;
-		pWin->border.pixmap = pPixmap;
-		pPixmap->refcnt++;
-	    }
-	    else
-	    {
-		error = (rc == BadValue) ? BadPixmap : rc;
-		client->errorValue = pixID;
-		goto PatchUp;
-	    }
-	    break;
-	  case CWBorderPixel:
-	    if (pWin->borderIsPixel == FALSE)
-		(*pScreen->DestroyPixmap)(pWin->border.pixmap);
-	    pWin->borderIsPixel = TRUE;
-	    pWin->border.pixel = (CARD32) *pVlist;
-		    /* border pixel overrides border pixmap,
-		       so don't let the ddx layer see both bits */
-	    vmaskCopy &= ~CWBorderPixmap;
-	    pVlist++;
-	    break;
-	  case CWBitGravity:
-	    val = (CARD8 )*pVlist;
-	    pVlist++;
-	    if (val > StaticGravity)
-	    {
-		error = BadValue;
-		client->errorValue = val;
-		goto PatchUp;
-	    }
-	    pWin->bitGravity = val;
-	    break;
-	  case CWWinGravity:
-	    val = (CARD8 )*pVlist;
-	    pVlist++;
-	    if (val > StaticGravity)
-	    {
-		error = BadValue;
-		client->errorValue = val;
-		goto PatchUp;
-	    }
-	    pWin->winGravity = val;
-	    break;
-	  case CWBackingStore:
-	    val = (CARD8 )*pVlist;
-	    pVlist++;
-	    if ((val != NotUseful) && (val != WhenMapped) && (val != Always))
-	    {
-		error = BadValue;
-		client->errorValue = val;
-		goto PatchUp;
-	    }
-	    pWin->backingStore = val;
-	    pWin->forcedBS = FALSE;
-	    break;
-	  case CWBackingPlanes:
-	    if (pWin->optional || ((CARD32)*pVlist != (CARD32)~0L)) {
-		if (!pWin->optional && !MakeWindowOptional (pWin))
-		{
-		    error = BadAlloc;
-		    goto PatchUp;
-		}
-		pWin->optional->backingBitPlanes = (CARD32) *pVlist;
-		if ((CARD32)*pVlist == (CARD32)~0L)
-		    checkOptional = TRUE;
-	    }
-	    pVlist++;
-	    break;
-	  case CWBackingPixel:
-	    if (pWin->optional || (CARD32) *pVlist) {
-		if (!pWin->optional && !MakeWindowOptional (pWin))
-		{
-		    error = BadAlloc;
-		    goto PatchUp;
-		}
-		pWin->optional->backingPixel = (CARD32) *pVlist;
-		if (!*pVlist)
-		    checkOptional = TRUE;
-	    }
-	    pVlist++;
-	    break;
-	  case CWSaveUnder:
-	    val = (BOOL) *pVlist;
-	    pVlist++;
-	    if ((val != xTrue) && (val != xFalse))
-	    {
-		error = BadValue;
-		client->errorValue = val;
-		goto PatchUp;
-	    }
-	    pWin->saveUnder = val;
-	    break;
-	  case CWEventMask:
-	    rc = EventSelectForWindow(pWin, client, (Mask )*pVlist);
-	    if (rc)
-	    {
-		error = rc;
-		goto PatchUp;
-	    }
-	    pVlist++;
-	    break;
-	  case CWDontPropagate:
-	    rc = EventSuppressForWindow(pWin, client, (Mask )*pVlist,
-					    &checkOptional);
-	    if (rc)
-	    {
-		error = rc;
-		goto PatchUp;
-	    }
-	    pVlist++;
-	    break;
-	  case CWOverrideRedirect:
-	    val = (BOOL ) *pVlist;
-	    pVlist++;
-	    if ((val != xTrue) && (val != xFalse))
-	    {
-		error = BadValue;
-		client->errorValue = val;
-		goto PatchUp;
-	    }
-	    if (val == xTrue) {
-		rc = XaceHook(XACE_RESOURCE_ACCESS, client, pWin->drawable.id,
-			      RT_WINDOW, pWin, RT_NONE, NULL, DixGrabAccess);
-		if (rc != Success) {
-		    error = rc;
-		    client->errorValue = pWin->drawable.id;
-		    goto PatchUp;
-		}
-	    }
-	    pWin->overrideRedirect = val;
-	    break;
-	  case CWColormap:
-	    cmap = (Colormap) *pVlist;
-	    pVlist++;
-	    if (cmap == CopyFromParent)
-	    {
-		if (pWin->parent &&
-		    (!pWin->optional ||
-		     pWin->optional->visual == wVisual (pWin->parent)))
-		{
-		    cmap = wColormap (pWin->parent);
-		}
-		else
-		    cmap = None;
-	    }
-	    if (cmap == None)
-	    {
-		error = BadMatch;
-		goto PatchUp;
-	    }
-	    rc = dixLookupResourceByType((pointer *)&pCmap, cmap, RT_COLORMAP,
-				   client, DixUseAccess);
-	    if (rc != Success)
-	    {
-		error = (rc == BadValue) ? BadColor : rc;
-		client->errorValue = cmap;
-		goto PatchUp;
-	    }
-	    if (pCmap->pVisual->vid != wVisual (pWin) ||
-		pCmap->pScreen != pScreen)
-	    {
-		error = BadMatch;
-		goto PatchUp;
-	    }
-	    if (cmap != wColormap (pWin))
-	    {
-		if (!pWin->optional)
-		{
-		    if (!MakeWindowOptional (pWin))
-		    {
-			error = BadAlloc;
-			goto PatchUp;
-		    }
-		}
-		else if (pWin->parent && cmap == wColormap (pWin->parent))
-		    checkOptional = TRUE;
-
-		/*
-		 * propagate the original colormap to any children
-		 * inheriting it
-		 */
-
-		for (pChild = pWin->firstChild; pChild; pChild=pChild->nextSib)
-		{
-		    if (!pChild->optional && !MakeWindowOptional (pChild))
-		    {
-			error = BadAlloc;
-			goto PatchUp;
-		    }
-		}
-
-		pWin->optional->colormap = cmap;
-
-		/*
-		 * check on any children now matching the new colormap
-		 */
-
-		for (pChild = pWin->firstChild; pChild; pChild=pChild->nextSib)
-		{
-		    if (pChild->optional->colormap == cmap)
-			CheckWindowOptionalNeed (pChild);
-		}
-	
-		xE.u.u.type = ColormapNotify;
-		xE.u.colormap.window = pWin->drawable.id;
-		xE.u.colormap.colormap = cmap;
-		xE.u.colormap.new = xTrue;
-		xE.u.colormap.state = IsMapInstalled(cmap, pWin);
-		DeliverEvents(pWin, &xE, 1, NullWindow);
-	    }
-	    break;
-	  case CWCursor:
-	    cursorID = (Cursor ) *pVlist;
-	    pVlist++;
-	    /*
-	     * install the new
-	     */
-	    if ( cursorID == None)
-	    {
-		if (pWin == WindowTable[pWin->drawable.pScreen->myNum])
-		    pCursor = rootCursor;
-		else
-		    pCursor = (CursorPtr) None;
-	    }
-	    else
-	    {
-		rc = dixLookupResourceByType((pointer *)&pCursor, cursorID,
-				       RT_CURSOR, client, DixUseAccess);
-		if (rc != Success)
-		{
-		    error = (rc == BadValue) ? BadCursor : rc;
-		    client->errorValue = cursorID;
-		    goto PatchUp;
-		}
-	    }
-
-	    if (pCursor != wCursor (pWin))
-	    {
-		/*
-		 * patch up child windows so they don't lose cursors.
-		 */
-
-		for (pChild = pWin->firstChild; pChild; pChild=pChild->nextSib)
-		{
-		    if (!pChild->optional && !pChild->cursorIsNone &&
-			!MakeWindowOptional (pChild))
-		    {
-			error = BadAlloc;
-			goto PatchUp;
-		    }
-		}
-
-		pOldCursor = 0;
-		if (pCursor == (CursorPtr) None)
-		{
-		    pWin->cursorIsNone = TRUE;
-		    if (pWin->optional)
-		    {
-			pOldCursor = pWin->optional->cursor;
-			pWin->optional->cursor = (CursorPtr) None;
-			checkOptional = TRUE;
-		    }
-		} else {
-		    if (!pWin->optional)
-		    {
-			if (!MakeWindowOptional (pWin))
-			{
-			    error = BadAlloc;
-			    goto PatchUp;
-			}
-		    }
-		    else if (pWin->parent && pCursor == wCursor (pWin->parent))
-			checkOptional = TRUE;
-		    pOldCursor = pWin->optional->cursor;
-		    pWin->optional->cursor = pCursor;
-		    pCursor->refcnt++;
-		    pWin->cursorIsNone = FALSE;
-		    /*
-		     * check on any children now matching the new cursor
-		     */
-
-		    for (pChild=pWin->firstChild; pChild; pChild=pChild->nextSib)
-		    {
-			if (pChild->optional &&
-			    (pChild->optional->cursor == pCursor))
-			    CheckWindowOptionalNeed (pChild);
-		    }
-		}
-
-		if (pWin->realized)
-		    WindowHasNewCursor( pWin);
-
-		/* Can't free cursor until here - old cursor
-		 * is needed in WindowHasNewCursor
-		 */
-		if (pOldCursor)
-		    FreeCursor (pOldCursor, (Cursor)0);
-	    }
-	    break;
-	 default:
-	    error = BadValue;
-	    client->errorValue = vmask;
-	    goto PatchUp;
-      }
-      vmaskCopy |= index2;
-    }
-PatchUp:
-    if (checkOptional)
-	CheckWindowOptionalNeed (pWin);
-
-	/* We SHOULD check for an error value here XXX */
-    (*pScreen->ChangeWindowAttributes)(pWin, vmaskCopy);
-
-    /* 
-	If the border contents have changed, redraw the border. 
-	Note that this has to be done AFTER pScreen->ChangeWindowAttributes
-	for the tile to be rotated, and the correct function selected.
-    */
-    if (((vmaskCopy & (CWBorderPixel | CWBorderPixmap)) || borderRelative)
-	&& pWin->viewable && HasBorder (pWin))
-    {
-	RegionRec exposed;
-
-	REGION_NULL(pScreen, &exposed);
-	REGION_SUBTRACT(pScreen, &exposed, &pWin->borderClip, &pWin->winSize);
-	miPaintWindow(pWin, &exposed, PW_BORDER);
-	REGION_UNINIT(pScreen, &exposed);
-    }
-    return error;
-}
-
-
-/*****
- * GetWindowAttributes
- *    Notice that this is different than ChangeWindowAttributes
- *****/
-
-void
-GetWindowAttributes(WindowPtr pWin, ClientPtr client, xGetWindowAttributesReply *wa)
-{
-    wa->type = X_Reply;
-    wa->bitGravity = pWin->bitGravity;
-    wa->winGravity = pWin->winGravity;
-    if (pWin->forcedBS && pWin->backingStore != Always)
-	wa->backingStore = NotUseful;
-    else
-	wa->backingStore = pWin->backingStore;
-    wa->length = bytes_to_int32(sizeof(xGetWindowAttributesReply) -
-		 sizeof(xGenericReply));
-    wa->sequenceNumber = client->sequence;
-    wa->backingBitPlanes =  wBackingBitPlanes (pWin);
-    wa->backingPixel =  wBackingPixel (pWin);
-    wa->saveUnder = (BOOL)pWin->saveUnder;
-    wa->override = pWin->overrideRedirect;
-    if (!pWin->mapped)
-	wa->mapState = IsUnmapped;
-    else if (pWin->realized)
-	wa->mapState = IsViewable;
-    else
-	wa->mapState = IsUnviewable;
-
-    wa->colormap =  wColormap (pWin);
-    wa->mapInstalled = (wa->colormap == None) ? xFalse
-				: IsMapInstalled(wa->colormap, pWin);
-
-    wa->yourEventMask = EventMaskForClient(pWin, client);
-    wa->allEventMasks = pWin->eventMask | wOtherEventMasks (pWin);
-    wa->doNotPropagateMask = wDontPropagateMask (pWin);
-    wa->class = pWin->drawable.class;
-    wa->visualID = wVisual (pWin);
-}
-
-
-WindowPtr
-MoveWindowInStack(WindowPtr pWin, WindowPtr pNextSib)
-{
-    WindowPtr pParent = pWin->parent;
-    WindowPtr pFirstChange = pWin; /* highest window where list changes */
-
-    if (pWin->nextSib != pNextSib)
-    {
-	WindowPtr pOldNextSib = pWin->nextSib;
-
-	if (!pNextSib)	      /* move to bottom */
-	{
-	    if (pParent->firstChild == pWin)
-		pParent->firstChild = pWin->nextSib;
-	    /* if (pWin->nextSib) */	 /* is always True: pNextSib == NULL
-					  * and pWin->nextSib != pNextSib
-					  * therefore pWin->nextSib != NULL */
-	    pFirstChange = pWin->nextSib;
-	    pWin->nextSib->prevSib = pWin->prevSib;
-	    if (pWin->prevSib)
-		pWin->prevSib->nextSib = pWin->nextSib;
-	    pParent->lastChild->nextSib = pWin;
-	    pWin->prevSib = pParent->lastChild;
-	    pWin->nextSib = NullWindow;
-	    pParent->lastChild = pWin;
-	}
-	else if (pParent->firstChild == pNextSib) /* move to top */
-	{
-	    pFirstChange = pWin;
-	    if (pParent->lastChild == pWin)
-	       pParent->lastChild = pWin->prevSib;
-	    if (pWin->nextSib)
-		pWin->nextSib->prevSib = pWin->prevSib;
-	    if (pWin->prevSib)
-		pWin->prevSib->nextSib = pWin->nextSib;
-	    pWin->nextSib = pParent->firstChild;
-	    pWin->prevSib = (WindowPtr ) NULL;
-	    pNextSib->prevSib = pWin;
-	    pParent->firstChild = pWin;
-	}
-	else			/* move in middle of list */
-	{
-	    WindowPtr pOldNext = pWin->nextSib;
-
-	    pFirstChange = NullWindow;
-	    if (pParent->firstChild == pWin)
-		pFirstChange = pParent->firstChild = pWin->nextSib;
-	    if (pParent->lastChild == pWin) {
-	       pFirstChange = pWin;
-	       pParent->lastChild = pWin->prevSib;
-	    }
-	    if (pWin->nextSib)
-		pWin->nextSib->prevSib = pWin->prevSib;
-	    if (pWin->prevSib)
-		pWin->prevSib->nextSib = pWin->nextSib;
-	    pWin->nextSib = pNextSib;
-	    pWin->prevSib = pNextSib->prevSib;
-	    if (pNextSib->prevSib)
-		pNextSib->prevSib->nextSib = pWin;
-	    pNextSib->prevSib = pWin;
-	    if (!pFirstChange) {		     /* do we know it yet? */
-		pFirstChange = pParent->firstChild;  /* no, search from top */
-		while ((pFirstChange != pWin) && (pFirstChange != pOldNext))
-		     pFirstChange = pFirstChange->nextSib;
-	    }
-	}
-	if(pWin->drawable.pScreen->RestackWindow)
-	    (*pWin->drawable.pScreen->RestackWindow)(pWin, pOldNextSib);
-    }
-
-#ifdef ROOTLESS
-    /*
-     * In rootless mode we can't optimize away window restacks.
-     * There may be non-X windows around, so even if the window
-     * is in the correct position from X's point of view,
-     * the underlying window system may want to reorder it.
-     */
-    else if (pWin->drawable.pScreen->RestackWindow)
-        (*pWin->drawable.pScreen->RestackWindow)(pWin, pWin->nextSib);
-#endif
-
-    return( pFirstChange );
-}
-
-void
-SetWinSize (WindowPtr pWin)
-{
-#ifdef COMPOSITE
-    if (pWin->redirectDraw != RedirectDrawNone)
-    {
-	BoxRec	box;
-
-	/*
-	 * Redirected clients get clip list equal to their
-	 * own geometry, not clipped to their parent
-	 */
-	box.x1 = pWin->drawable.x;
-	box.y1 = pWin->drawable.y;
-	box.x2 = pWin->drawable.x + pWin->drawable.width;
-	box.y2 = pWin->drawable.y + pWin->drawable.height;
-	REGION_RESET (pScreen, &pWin->winSize, &box);
-    }
-    else
-#endif
-    ClippedRegionFromBox(pWin->parent, &pWin->winSize,
-			 pWin->drawable.x, pWin->drawable.y,
-			 (int)pWin->drawable.width,
-			 (int)pWin->drawable.height);
-    if (wBoundingShape (pWin) || wClipShape (pWin)) {
-	ScreenPtr pScreen;
-        pScreen = pWin->drawable.pScreen;
-
-	REGION_TRANSLATE(pScreen, &pWin->winSize, - pWin->drawable.x,
-			 - pWin->drawable.y);
-	if (wBoundingShape (pWin))
-	    REGION_INTERSECT(pScreen, &pWin->winSize, &pWin->winSize,
-			     wBoundingShape (pWin));
-	if (wClipShape (pWin))
-	    REGION_INTERSECT(pScreen, &pWin->winSize, &pWin->winSize,
-			     wClipShape (pWin));
-	REGION_TRANSLATE(pScreen, &pWin->winSize, pWin->drawable.x,
-			 pWin->drawable.y);
-    }
-}
-
-void
-SetBorderSize (WindowPtr pWin)
-{
-    int	bw;
-
-    if (HasBorder (pWin)) {
-	bw = wBorderWidth (pWin);
-#ifdef COMPOSITE
-	if (pWin->redirectDraw != RedirectDrawNone)
-	{
-	    BoxRec	box;
-
-	    /*
-	     * Redirected clients get clip list equal to their
-	     * own geometry, not clipped to their parent
-	     */
-	    box.x1 = pWin->drawable.x - bw;
-	    box.y1 = pWin->drawable.y - bw;
-	    box.x2 = pWin->drawable.x + pWin->drawable.width + bw;
-	    box.y2 = pWin->drawable.y + pWin->drawable.height + bw;
-	    REGION_RESET (pScreen, &pWin->borderSize, &box);
-	}
-	else
-#endif
-	ClippedRegionFromBox(pWin->parent, &pWin->borderSize,
-		pWin->drawable.x - bw, pWin->drawable.y - bw,
-		(int)(pWin->drawable.width + (bw<<1)),
-		(int)(pWin->drawable.height + (bw<<1)));
-	if (wBoundingShape (pWin)) {
-	    ScreenPtr pScreen;
-            pScreen = pWin->drawable.pScreen;
-
-	    REGION_TRANSLATE(pScreen, &pWin->borderSize, - pWin->drawable.x,
-			     - pWin->drawable.y);
-	    REGION_INTERSECT(pScreen, &pWin->borderSize, &pWin->borderSize,
-			     wBoundingShape (pWin));
-	    REGION_TRANSLATE(pScreen, &pWin->borderSize, pWin->drawable.x,
-			     pWin->drawable.y);
-	    REGION_UNION(pScreen, &pWin->borderSize, &pWin->borderSize,
-			 &pWin->winSize);
-	}
-    } else {
-	REGION_COPY(pWin->drawable.pScreen, &pWin->borderSize,
-					       &pWin->winSize);
-    }
-}
-
-/**
- *
- *  \param x,y          new window position
- *  \param oldx,oldy    old window position
- *  \param destx,desty  position relative to gravity
- */
-
-void
-GravityTranslate (int x, int y, int oldx, int oldy,
-                  int dw, int dh, unsigned gravity,
-                  int *destx, int *desty)
-{
-    switch (gravity) {
-    case NorthGravity:
-	*destx = x + dw / 2;
-	*desty = y;
-	break;
-    case NorthEastGravity:
-	*destx = x + dw;
-	*desty = y;
-	break;
-    case WestGravity:
-	*destx = x;
-	*desty = y + dh / 2;
-	break;
-    case CenterGravity:
-	*destx = x + dw / 2;
-	*desty = y + dh / 2;
-	break;
-    case EastGravity:
-	*destx = x + dw;
-	*desty = y + dh / 2;
-	break;
-    case SouthWestGravity:
-	*destx = x;
-	*desty = y + dh;
-	break;
-    case SouthGravity:
-	*destx = x + dw / 2;
-	*desty = y + dh;
-	break;
-    case SouthEastGravity:
-	*destx = x + dw;
-	*desty = y + dh;
-	break;
-    case StaticGravity:
-	*destx = oldx;
-	*desty = oldy;
-	break;
-    default:
-	*destx = x;
-	*desty = y;
-	break;
-    }
-}
-
-/* XXX need to retile border on each window with ParentRelative origin */
-void
-ResizeChildrenWinSize(WindowPtr pWin, int dx, int dy, int dw, int dh)
-{
-    ScreenPtr pScreen;
-    WindowPtr pSib, pChild;
-    Bool resized = (dw || dh);
-
-    pScreen = pWin->drawable.pScreen;
-
-    for (pSib = pWin->firstChild; pSib; pSib = pSib->nextSib)
-    {
-	if (resized && (pSib->winGravity > NorthWestGravity))
-	{
-	    int cwsx, cwsy;
-
-	    cwsx = pSib->origin.x;
-	    cwsy = pSib->origin.y;
-	    GravityTranslate (cwsx, cwsy, cwsx - dx, cwsy - dy, dw, dh,
-			pSib->winGravity, &cwsx, &cwsy);
-	    if (cwsx != pSib->origin.x || cwsy != pSib->origin.y)
-	    {
-		xEvent event;
-
-		event.u.u.type = GravityNotify;
-		event.u.gravity.window = pSib->drawable.id;
-		event.u.gravity.x = cwsx - wBorderWidth (pSib);
-		event.u.gravity.y = cwsy - wBorderWidth (pSib);
-		DeliverEvents (pSib, &event, 1, NullWindow);
-		pSib->origin.x = cwsx;
-		pSib->origin.y = cwsy;
-	    }
-	}
-	pSib->drawable.x = pWin->drawable.x + pSib->origin.x;
-	pSib->drawable.y = pWin->drawable.y + pSib->origin.y;
-	SetWinSize (pSib);
-	SetBorderSize (pSib);
-	(*pScreen->PositionWindow)(pSib, pSib->drawable.x, pSib->drawable.y);
-
-	if ( (pChild = pSib->firstChild) )
-	{
-	    while (1)
-	    {
-		pChild->drawable.x = pChild->parent->drawable.x +
-				     pChild->origin.x;
-		pChild->drawable.y = pChild->parent->drawable.y +
-				     pChild->origin.y;
-		SetWinSize (pChild);
-		SetBorderSize (pChild);
-		(*pScreen->PositionWindow)(pChild,
-				    pChild->drawable.x, pChild->drawable.y);
-		if (pChild->firstChild)
-		{
-		    pChild = pChild->firstChild;
-		    continue;
-		}
-		while (!pChild->nextSib && (pChild != pSib))
-		    pChild = pChild->parent;
-		if (pChild == pSib)
-		    break;
-		pChild = pChild->nextSib;
-	    }
-	}
-    }
-}
-
-#define GET_INT16(m, f) \
-	if (m & mask) \
-	  { \
-	     f = (INT16) *pVlist;\
-	    pVlist++; \
-	 }
-#define GET_CARD16(m, f) \
-	if (m & mask) \
-	 { \
-	    f = (CARD16) *pVlist;\
-	    pVlist++;\
-	 }
-
-#define GET_CARD8(m, f) \
-	if (m & mask) \
-	 { \
-	    f = (CARD8) *pVlist;\
-	    pVlist++;\
-	 }
-
-#define ChangeMask ((Mask)(CWX | CWY | CWWidth | CWHeight))
-
-#define IllegalInputOnlyConfigureMask (CWBorderWidth)
-
-/*
- * IsSiblingAboveMe
- *     returns Above if pSib above pMe in stack or Below otherwise 
- */
-
-static int
-IsSiblingAboveMe(
-    WindowPtr pMe,
-    WindowPtr pSib)
-{
-    WindowPtr pWin;
-
-    pWin = pMe->parent->firstChild;
-    while (pWin)
-    {
-	if (pWin == pSib)
-	    return(Above);
-	else if (pWin == pMe)
-	    return(Below);
-	pWin = pWin->nextSib;
-    }
-    return(Below);
-}
-
-static BoxPtr
-WindowExtents(
-    WindowPtr pWin,
-    BoxPtr pBox)
-{
-    pBox->x1 = pWin->drawable.x - wBorderWidth (pWin);
-    pBox->y1 = pWin->drawable.y - wBorderWidth (pWin);
-    pBox->x2 = pWin->drawable.x + (int)pWin->drawable.width
-	       + wBorderWidth (pWin);
-    pBox->y2 = pWin->drawable.y + (int)pWin->drawable.height
-	       + wBorderWidth (pWin);
-    return(pBox);
-}
-
-#define IS_SHAPED(pWin)	(wBoundingShape (pWin) != (RegionPtr) NULL)
-
-static RegionPtr
-MakeBoundingRegion (
-    WindowPtr	pWin,
-    BoxPtr	pBox)
-{
-    RegionPtr	pRgn;
-    ScreenPtr   pScreen;
-    pScreen = pWin->drawable.pScreen;
-
-    pRgn = REGION_CREATE(pScreen, pBox, 1);
-    if (wBoundingShape (pWin)) {
-	    REGION_TRANSLATE(pScreen, pRgn, -pWin->origin.x,
-						  -pWin->origin.y);
-	    REGION_INTERSECT(pScreen, pRgn, pRgn, wBoundingShape (pWin));
-	    REGION_TRANSLATE(pScreen, pRgn, pWin->origin.x,
-						  pWin->origin.y);
-    }
-    return pRgn;
-}
-
-static Bool
-ShapeOverlap (
-    WindowPtr	pWin,
-    BoxPtr	pWinBox,
-    WindowPtr	pSib,
-    BoxPtr	pSibBox)
-{
-    RegionPtr	pWinRgn, pSibRgn;
-    ScreenPtr	pScreen;
-    Bool	ret;
-
-    if (!IS_SHAPED(pWin) && !IS_SHAPED(pSib))
-	return TRUE;
-    pScreen = pWin->drawable.pScreen;
-    pWinRgn = MakeBoundingRegion (pWin, pWinBox);
-    pSibRgn = MakeBoundingRegion (pSib, pSibBox);
-    REGION_INTERSECT(pScreen, pWinRgn, pWinRgn, pSibRgn);
-    ret = REGION_NOTEMPTY(pScreen, pWinRgn);
-    REGION_DESTROY(pScreen, pWinRgn);
-    REGION_DESTROY(pScreen, pSibRgn);
-    return ret;
-}
-
-static Bool
-AnyWindowOverlapsMe(
-    WindowPtr pWin,
-    WindowPtr pHead,
-    BoxPtr box)
-{
-    WindowPtr pSib;
-    BoxRec sboxrec;
-    BoxPtr sbox;
-
-    for (pSib = pWin->prevSib; pSib != pHead; pSib = pSib->prevSib)
-    {
-	if (pSib->mapped)
-	{
-	    sbox = WindowExtents(pSib, &sboxrec);
-	    if (BOXES_OVERLAP(sbox, box)
-	    && ShapeOverlap (pWin, box, pSib, sbox)
-	    )
-		return(TRUE);
-	}
-    }
-    return(FALSE);
-}
-
-static Bool
-IOverlapAnyWindow(
-    WindowPtr pWin,
-    BoxPtr box)
-{
-    WindowPtr pSib;
-    BoxRec sboxrec;
-    BoxPtr sbox;
-
-    for (pSib = pWin->nextSib; pSib; pSib = pSib->nextSib)
-    {
-	if (pSib->mapped)
-	{
-	    sbox = WindowExtents(pSib, &sboxrec);
-	    if (BOXES_OVERLAP(sbox, box)
-	    && ShapeOverlap (pWin, box, pSib, sbox)
-	    )
-		return(TRUE);
-	}
-    }
-    return(FALSE);
-}
-
-/*
- *   WhereDoIGoInTheStack() 
- *	  Given pWin and pSib and the relationshipe smode, return
- *	  the window that pWin should go ABOVE.
- *	  If a pSib is specified:
- *	      Above:  pWin is placed just above pSib
- *	      Below:  pWin is placed just below pSib
- *	      TopIf:  if pSib occludes pWin, then pWin is placed
- *		      at the top of the stack
- *	      BottomIf:	 if pWin occludes pSib, then pWin is 
- *			 placed at the bottom of the stack
- *	      Opposite: if pSib occludes pWin, then pWin is placed at the
- *			top of the stack, else if pWin occludes pSib, then
- *			pWin is placed at the bottom of the stack
- *
- *	  If pSib is NULL:
- *	      Above:  pWin is placed at the top of the stack
- *	      Below:  pWin is placed at the bottom of the stack
- *	      TopIf:  if any sibling occludes pWin, then pWin is placed at
- *		      the top of the stack
- *	      BottomIf: if pWin occludes any sibline, then pWin is placed at
- *			the bottom of the stack
- *	      Opposite: if any sibling occludes pWin, then pWin is placed at
- *			the top of the stack, else if pWin occludes any
- *			sibling, then pWin is placed at the bottom of the stack
- *
- */
-
-static WindowPtr
-WhereDoIGoInTheStack(
-    WindowPtr pWin,
-    WindowPtr pSib,
-    short x,
-    short y,
-    unsigned short w,
-    unsigned short h,
-    int smode)
-{
-    BoxRec box;
-    ScreenPtr pScreen;
-    WindowPtr pHead, pFirst;
-
-    if ((pWin == pWin->parent->firstChild) &&
-	(pWin == pWin->parent->lastChild))
-	return((WindowPtr ) NULL);
-    pHead = RealChildHead(pWin->parent);
-    pFirst = pHead ? pHead->nextSib : pWin->parent->firstChild;
-    pScreen = pWin->drawable.pScreen;
-    box.x1 = x;
-    box.y1 = y;
-    box.x2 = x + (int)w;
-    box.y2 = y + (int)h;
-    switch (smode)
-    {
-      case Above:
-	if (pSib)
-	   return(pSib);
-	else if (pWin == pFirst)
-	    return(pWin->nextSib);
-	else
-	    return(pFirst);
-      case Below:
-	if (pSib)
-	    if (pSib->nextSib != pWin)
-		return(pSib->nextSib);
-	    else
-		return(pWin->nextSib);
-	else
-	    return NullWindow;
-      case TopIf:
-	if ((!pWin->mapped || (pSib && !pSib->mapped)))
-	    return(pWin->nextSib);
-	else if (pSib)
-	{
-	    if ((IsSiblingAboveMe(pWin, pSib) == Above) &&
-		(RECT_IN_REGION(pScreen, &pSib->borderSize, &box) != rgnOUT))
-		return(pFirst);
-	    else
-		return(pWin->nextSib);
-	}
-	else if (AnyWindowOverlapsMe(pWin, pHead, &box))
-	    return(pFirst);
-	else
-	    return(pWin->nextSib);
-      case BottomIf:
-	if ((!pWin->mapped || (pSib && !pSib->mapped)))
-	    return(pWin->nextSib);
-	else if (pSib)
-	{
-	    if ((IsSiblingAboveMe(pWin, pSib) == Below) &&
-		(RECT_IN_REGION(pScreen, &pSib->borderSize, &box) != rgnOUT))
-		return NullWindow;
-	    else
-		return(pWin->nextSib);
-	}
-	else if (IOverlapAnyWindow(pWin, &box))
-	    return NullWindow;
-	else
-	    return(pWin->nextSib);
-      case Opposite:
-	if ((!pWin->mapped || (pSib && !pSib->mapped)))
-	    return(pWin->nextSib);
-	else if (pSib)
-	{
-	    if (RECT_IN_REGION(pScreen, &pSib->borderSize, &box) != rgnOUT)
-	    {
-		if (IsSiblingAboveMe(pWin, pSib) == Above)
-		    return(pFirst);
-		else
-		    return NullWindow;
-	    }
-	    else
-		return(pWin->nextSib);
-	}
-	else if (AnyWindowOverlapsMe(pWin, pHead, &box))
-	{
-	    /* If I'm occluded, I can't possibly be the first child
-	     * if (pWin == pWin->parent->firstChild)
-	     *	  return pWin->nextSib;
-	     */
-	    return(pFirst);
-	}
-	else if (IOverlapAnyWindow(pWin, &box))
-	    return NullWindow;
-	else
-	    return pWin->nextSib;
-      default:
-      {
-	/* should never happen; make something up. */
-	return pWin->nextSib;
-      }
-    }
-}
-
-static void
-ReflectStackChange(
-    WindowPtr pWin,
-    WindowPtr pSib,
-    VTKind  kind)
-{
-/* Note that pSib might be NULL */
-
-    Bool WasViewable = (Bool)pWin->viewable;
-    Bool anyMarked;
-    WindowPtr pFirstChange;
-    WindowPtr  pLayerWin;
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-
-    /* if this is a root window, can't be restacked */
-    if (!pWin->parent)
-	return;
-
-    pFirstChange = MoveWindowInStack(pWin, pSib);
-
-    if (WasViewable)
-    {
-	anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pFirstChange,
-						      &pLayerWin);
-	if (pLayerWin != pWin) pFirstChange = pLayerWin;
-	if (anyMarked)
-	{
-	    (*pScreen->ValidateTree)(pLayerWin->parent, pFirstChange, kind);
-	    (*pScreen->HandleExposures)(pLayerWin->parent);
-	}
-	if (anyMarked && pWin->drawable.pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pLayerWin->parent, pFirstChange, kind);
-    }
-    if (pWin->realized)
-	WindowsRestructured ();
-}
-
-/*****
- * ConfigureWindow
- *****/
-
-int
-ConfigureWindow(WindowPtr pWin, Mask mask, XID *vlist, ClientPtr client)
-{
-#define RESTACK_WIN    0
-#define MOVE_WIN       1
-#define RESIZE_WIN     2
-#define REBORDER_WIN   3
-    WindowPtr pSib = NullWindow;
-    WindowPtr pParent = pWin->parent;
-    Window sibwid = 0;
-    Mask index2, tmask;
-    XID *pVlist;
-    short x,   y, beforeX, beforeY;
-    unsigned short w = pWin->drawable.width,
-		   h = pWin->drawable.height,
-		   bw = pWin->borderWidth;
-    int rc, action, smode = Above;
-    xEvent event;
-
-    if ((pWin->drawable.class == InputOnly) && (mask & IllegalInputOnlyConfigureMask))
-	return(BadMatch);
-
-    if ((mask & CWSibling) && !(mask & CWStackMode))
-	return(BadMatch);
-
-    pVlist = vlist;
-
-    if (pParent)
-    {
-	x = pWin->drawable.x - pParent->drawable.x - (int)bw;
-	y = pWin->drawable.y - pParent->drawable.y - (int)bw;
-    }
-    else
-    {
-	x = pWin->drawable.x;
-	y = pWin->drawable.y;
-    }
-    beforeX = x;
-    beforeY = y;
-    action = RESTACK_WIN;	
-    if ((mask & (CWX | CWY)) && (!(mask & (CWHeight | CWWidth))))
-    {
-	GET_INT16(CWX, x);
-	GET_INT16(CWY, y);
-	action = MOVE_WIN;
-    }
-	/* or should be resized */
-    else if (mask & (CWX |  CWY | CWWidth | CWHeight))
-    {
-	GET_INT16(CWX, x);
-	GET_INT16(CWY, y);
-	GET_CARD16(CWWidth, w);
-	GET_CARD16 (CWHeight, h);
-	if (!w || !h)
-	{
-	    client->errorValue = 0;
-	    return BadValue;
-	}
-	action = RESIZE_WIN;
-    }
-    tmask = mask & ~ChangeMask;
-    while (tmask)
-    {
-	index2 = (Mask)lowbit (tmask);
-	tmask &= ~index2;
-	switch (index2)
-	{
-	  case CWBorderWidth:
-	    GET_CARD16(CWBorderWidth, bw);
-	    break;
-	  case CWSibling:
-	    sibwid = (Window ) *pVlist;
-	    pVlist++;
-	    rc = dixLookupWindow(&pSib, sibwid, client, DixGetAttrAccess);
-	    if (rc != Success)
-	    {
-		client->errorValue = sibwid;
-		return rc;
-	    }
-	    if (pSib->parent != pParent)
-		return(BadMatch);
-	    if (pSib == pWin)
-		return(BadMatch);
-	    break;
-	  case CWStackMode:
-	    GET_CARD8(CWStackMode, smode);
-	    if ((smode != TopIf) && (smode != BottomIf) &&
-		(smode != Opposite) && (smode != Above) && (smode != Below))
-	    {
-		client->errorValue = smode;
-		return(BadValue);
-	    }
-	    break;
-	  default:
-	    client->errorValue = mask;
-	    return(BadValue);
-	}
-    }
-	/* root really can't be reconfigured, so just return */
-    if (!pParent)
-	return Success;
-
-	/* Figure out if the window should be moved.  Doesnt
-	   make the changes to the window if event sent */
-
-    if (mask & CWStackMode)
-	pSib = WhereDoIGoInTheStack(pWin, pSib, pParent->drawable.x + x,
-				    pParent->drawable.y + y,
-				    w + (bw << 1), h + (bw << 1), smode);
-    else
-	pSib = pWin->nextSib;
-
-
-    if ((!pWin->overrideRedirect) && 
-	(RedirectSend(pParent)
-	))
-    {
-	memset(&event, 0, sizeof(xEvent));
-	event.u.u.type = ConfigureRequest;
-	event.u.configureRequest.window = pWin->drawable.id;
-	if (mask & CWSibling)
-	   event.u.configureRequest.sibling = sibwid;
-	else
-	    event.u.configureRequest.sibling = None;
-	if (mask & CWStackMode)
-	   event.u.u.detail = smode;
-	else
-	    event.u.u.detail = Above;
-	event.u.configureRequest.x = x;
-	event.u.configureRequest.y = y;
-#ifdef PANORAMIX
-	if(!noPanoramiXExtension && (!pParent || !pParent->parent)) {
-            event.u.configureRequest.x += panoramiXdataPtr[0].x;
-            event.u.configureRequest.y += panoramiXdataPtr[0].y;
-	}
-#endif
-	event.u.configureRequest.width = w;
-	event.u.configureRequest.height = h;
-	event.u.configureRequest.borderWidth = bw;
-	event.u.configureRequest.valueMask = mask;
-	event.u.configureRequest.parent = pParent->drawable.id;
-	if (MaybeDeliverEventsToClient(pParent, &event, 1,
-		SubstructureRedirectMask, client) == 1)
-	    return(Success);
-    }
-    if (action == RESIZE_WIN)
-    {
-	Bool size_change = (w != pWin->drawable.width)
-			|| (h != pWin->drawable.height);
-	if (size_change && ((pWin->eventMask|wOtherEventMasks(pWin)) & ResizeRedirectMask))
-	{
-	    xEvent eventT;
-	    memset(&eventT, 0, sizeof(xEvent));
-	    eventT.u.u.type = ResizeRequest;
-	    eventT.u.resizeRequest.window = pWin->drawable.id;
-	    eventT.u.resizeRequest.width = w;
-	    eventT.u.resizeRequest.height = h;
-	    if (MaybeDeliverEventsToClient(pWin, &eventT, 1,
-				       ResizeRedirectMask, client) == 1)
-	    {
-		/* if event is delivered, leave the actual size alone. */
-		w = pWin->drawable.width;
-		h = pWin->drawable.height;
-		size_change = FALSE;
-	    }
-	}
-	if (!size_change)
-	{
-	    if (mask & (CWX | CWY))
-		action = MOVE_WIN;
-	    else if (mask & (CWStackMode | CWBorderWidth))
-		action = RESTACK_WIN;
-	    else   /* really nothing to do */
-		return(Success) ;
-	}
-    }
-
-    if (action == RESIZE_WIN)
-	    /* we've already checked whether there's really a size change */
-	    goto ActuallyDoSomething;
-    if ((mask & CWX) && (x != beforeX))
-	    goto ActuallyDoSomething;
-    if ((mask & CWY) && (y != beforeY))
-	    goto ActuallyDoSomething;
-    if ((mask & CWBorderWidth) && (bw != wBorderWidth (pWin)))
-	    goto ActuallyDoSomething;
-    if (mask & CWStackMode)
-    {
-#ifndef ROOTLESS
-        /* See above for why we always reorder in rootless mode. */
-	if (pWin->nextSib != pSib)
-#endif
-	    goto ActuallyDoSomething;
-    }
-    return(Success);
-
-ActuallyDoSomething:
-    if (SubStrSend(pWin, pParent))
-    {
-	memset(&event, 0, sizeof(xEvent));
-	event.u.u.type = ConfigureNotify;
-	event.u.configureNotify.window = pWin->drawable.id;
-	if (pSib)
-	    event.u.configureNotify.aboveSibling = pSib->drawable.id;
-	else
-	    event.u.configureNotify.aboveSibling = None;
-	event.u.configureNotify.x = x;
-	event.u.configureNotify.y = y;
-#ifdef PANORAMIX
-	if(!noPanoramiXExtension && (!pParent || !pParent->parent)) {
-	    event.u.configureNotify.x += panoramiXdataPtr[0].x;
-            event.u.configureNotify.y += panoramiXdataPtr[0].y;
-	}
-#endif
-	event.u.configureNotify.width = w;
-	event.u.configureNotify.height = h;
-	event.u.configureNotify.borderWidth = bw;
-	event.u.configureNotify.override = pWin->overrideRedirect;
-	DeliverEvents(pWin, &event, 1, NullWindow);
-    }
-    if (mask & CWBorderWidth)
-    {
-	if (action == RESTACK_WIN)
-	{
-	    action = MOVE_WIN;
-	    pWin->borderWidth = bw;
-	}
-	else if ((action == MOVE_WIN) &&
-		 (beforeX + wBorderWidth (pWin) == x + (int)bw) &&
-		 (beforeY + wBorderWidth (pWin) == y + (int)bw))
-	{
-	    action = REBORDER_WIN;
-	    (*pWin->drawable.pScreen->ChangeBorderWidth)(pWin, bw);
-	}
-	else
-	    pWin->borderWidth = bw;
-    }
-    if (action == MOVE_WIN)
-	(*pWin->drawable.pScreen->MoveWindow)(pWin, x, y, pSib,
-		   (mask & CWBorderWidth) ? VTOther : VTMove);
-    else if (action == RESIZE_WIN)
-	(*pWin->drawable.pScreen->ResizeWindow)(pWin, x, y, w, h, pSib);
-    else if (mask & CWStackMode)
-	ReflectStackChange(pWin, pSib, VTOther);
-
-    if (action != RESTACK_WIN)
-	CheckCursorConfinement(pWin);
-    return(Success);
-#undef RESTACK_WIN
-#undef MOVE_WIN
-#undef RESIZE_WIN
-#undef REBORDER_WIN
-}
-
-
-/******
- *
- * CirculateWindow
- *    For RaiseLowest, raises the lowest mapped child (if any) that is
- *    obscured by another child to the top of the stack.  For LowerHighest,
- *    lowers the highest mapped child (if any) that is obscuring another
- *    child to the bottom of the stack.	 Exposure processing is performed 
- *
- ******/
-
-int
-CirculateWindow(WindowPtr pParent, int direction, ClientPtr client)
-{
-    WindowPtr pWin, pHead, pFirst;
-    xEvent event;
-    BoxRec box;
-
-    pHead = RealChildHead(pParent);
-    pFirst = pHead ? pHead->nextSib : pParent->firstChild;
-    if (direction == RaiseLowest)
-    {
-	for (pWin = pParent->lastChild;
-	     (pWin != pHead) &&
-	     !(pWin->mapped &&
-	       AnyWindowOverlapsMe(pWin, pHead, WindowExtents(pWin, &box)));
-	     pWin = pWin->prevSib) ;
-	if (pWin == pHead)
-	    return Success;
-    }
-    else
-    {
-	for (pWin = pFirst;
-	     pWin &&
-	     !(pWin->mapped &&
-	       IOverlapAnyWindow(pWin, WindowExtents(pWin, &box)));
-	     pWin = pWin->nextSib) ;
-	if (!pWin)
-	    return Success;
-    }
-
-    event.u.circulate.window = pWin->drawable.id;
-    event.u.circulate.parent = pParent->drawable.id;
-    event.u.circulate.event = pParent->drawable.id;
-    if (direction == RaiseLowest)
-	event.u.circulate.place = PlaceOnTop;
-    else
-	event.u.circulate.place = PlaceOnBottom;
-
-    if (RedirectSend(pParent))
-    {
-	event.u.u.type = CirculateRequest;
-	if (MaybeDeliverEventsToClient(pParent, &event, 1,
-		SubstructureRedirectMask, client) == 1)
-	    return(Success);
-    }
-
-    event.u.u.type = CirculateNotify;
-    DeliverEvents(pWin, &event, 1, NullWindow);
-    ReflectStackChange(pWin,
-		       (direction == RaiseLowest) ? pFirst : NullWindow,
-		       VTStack);
-
-    return(Success);
-}
-
-static int
-CompareWIDs(
-    WindowPtr pWin,
-    pointer   value) /* must conform to VisitWindowProcPtr */
-{
-    Window *wid = (Window *)value;
-
-    if (pWin->drawable.id == *wid)
-       return(WT_STOPWALKING);
-    else
-       return(WT_WALKCHILDREN);
-}
-
-/*****
- *  ReparentWindow
- *****/
-
-int
-ReparentWindow(WindowPtr pWin, WindowPtr pParent,
-               int x, int y, ClientPtr client)
-{
-    WindowPtr pPrev, pPriorParent;
-    Bool WasMapped = (Bool)(pWin->mapped);
-    xEvent event;
-    int bw = wBorderWidth (pWin);
-    ScreenPtr pScreen;
-
-    pScreen = pWin->drawable.pScreen;
-    if (TraverseTree(pWin, CompareWIDs, (pointer)&pParent->drawable.id) == WT_STOPWALKING)
-	return(BadMatch);		
-    if (!MakeWindowOptional(pWin))
-	return(BadAlloc);
-
-    if (WasMapped)
-       UnmapWindow(pWin, FALSE);
-
-    memset(&event, 0, sizeof(xEvent));
-    event.u.u.type = ReparentNotify;
-    event.u.reparent.window = pWin->drawable.id;
-    event.u.reparent.parent = pParent->drawable.id;
-    event.u.reparent.x = x;
-    event.u.reparent.y = y;
-#ifdef PANORAMIX
-    if(!noPanoramiXExtension && !pParent->parent) {
-	event.u.reparent.x += panoramiXdataPtr[0].x;
-	event.u.reparent.y += panoramiXdataPtr[0].y;
-    }
-#endif
-    event.u.reparent.override = pWin->overrideRedirect;
-    DeliverEvents(pWin, &event, 1, pParent);
-
-    /* take out of sibling chain */
-
-    pPriorParent = pPrev = pWin->parent;
-    if (pPrev->firstChild == pWin)
-	pPrev->firstChild = pWin->nextSib;
-    if (pPrev->lastChild == pWin)
-	pPrev->lastChild = pWin->prevSib;
-
-    if (pWin->nextSib)
-	pWin->nextSib->prevSib = pWin->prevSib;
-    if (pWin->prevSib)
-	pWin->prevSib->nextSib = pWin->nextSib;
-
-    /* insert at begining of pParent */
-    pWin->parent = pParent;
-    pPrev = RealChildHead(pParent);
-    if (pPrev)
-    {
-	pWin->nextSib = pPrev->nextSib;
-	if (pPrev->nextSib)
-	    pPrev->nextSib->prevSib = pWin;
-	else
-	    pParent->lastChild = pWin;
-	pPrev->nextSib = pWin;
-	pWin->prevSib = pPrev;
-    }
-    else
-    {
-	pWin->nextSib = pParent->firstChild;
-	pWin->prevSib = NullWindow;
-	if (pParent->firstChild)
-	    pParent->firstChild->prevSib = pWin;
-	else
-	    pParent->lastChild = pWin;
-	pParent->firstChild = pWin;
-    }
-
-    pWin->origin.x = x + bw;
-    pWin->origin.y = y + bw;
-    pWin->drawable.x = x + bw + pParent->drawable.x;
-    pWin->drawable.y = y + bw + pParent->drawable.y;
-
-    /* clip to parent */
-    SetWinSize (pWin);
-    SetBorderSize (pWin);
-
-    if (pScreen->ReparentWindow)
-	(*pScreen->ReparentWindow)(pWin, pPriorParent);
-    (*pScreen->PositionWindow)(pWin, pWin->drawable.x, pWin->drawable.y);
-    ResizeChildrenWinSize(pWin, 0, 0, 0, 0);
-
-    CheckWindowOptionalNeed(pWin);
-
-    if (WasMapped)
-	MapWindow(pWin, client);
-    RecalculateDeliverableEvents(pWin);
-    return(Success);
-}
-
-static void
-RealizeTree(WindowPtr pWin)
-{
-    WindowPtr pChild;
-    RealizeWindowProcPtr Realize;
-
-    Realize = pWin->drawable.pScreen->RealizeWindow;
-    pChild = pWin;
-    while (1)
-    {
-	if (pChild->mapped)
-	{
-	    pChild->realized = TRUE;
-	    pChild->viewable = (pChild->drawable.class == InputOutput);
-	    (* Realize)(pChild);
-	    if (pChild->firstChild)
-	    {
-		pChild = pChild->firstChild;
-		continue;
-	    }
-	}
-	while (!pChild->nextSib && (pChild != pWin))
-	    pChild = pChild->parent;
-	if (pChild == pWin)
-	    return;
-	pChild = pChild->nextSib;
-    }
-}
-
-static WindowPtr windowDisableMapUnmapEvents;
-
-void
-DisableMapUnmapEvents(WindowPtr pWin)
-{
-    assert (windowDisableMapUnmapEvents == NULL);
-    
-    windowDisableMapUnmapEvents = pWin;
-}
-
-void
-EnableMapUnmapEvents(WindowPtr pWin)
-{
-    assert (windowDisableMapUnmapEvents != NULL);
-
-    windowDisableMapUnmapEvents = NULL;
-}
-
-static Bool
-MapUnmapEventsEnabled(WindowPtr pWin)
-{
-    return pWin != windowDisableMapUnmapEvents;
-}
-
-/*****
- * MapWindow
- *    If some other client has selected SubStructureReDirect on the parent
- *    and override-redirect is xFalse, then a MapRequest event is generated,
- *    but the window remains unmapped.	Otherwise, the window is mapped and a
- *    MapNotify event is generated.
- *****/
-
-int
-MapWindow(WindowPtr pWin, ClientPtr client)
-{
-    ScreenPtr pScreen;
-
-    WindowPtr pParent;
-    WindowPtr  pLayerWin;
-
-    if (pWin->mapped)
-	return(Success);
-
-    /*  general check for permission to map window */
-    if (XaceHook(XACE_RESOURCE_ACCESS, client, pWin->drawable.id, RT_WINDOW,
-		 pWin, RT_NONE, NULL, DixShowAccess) != Success)
-	return Success;
-
-    pScreen = pWin->drawable.pScreen;
-    if ( (pParent = pWin->parent) )
-    {
-	xEvent event;
-	Bool anyMarked;
-
-	if ((!pWin->overrideRedirect) && 
-	    (RedirectSend(pParent)
-	))
-	{
-	    memset(&event, 0, sizeof(xEvent));
-	    event.u.u.type = MapRequest;
-	    event.u.mapRequest.window = pWin->drawable.id;
-	    event.u.mapRequest.parent = pParent->drawable.id;
-
-	    if (MaybeDeliverEventsToClient(pParent, &event, 1,
-		SubstructureRedirectMask, client) == 1)
-		return(Success);
-	}
-
-	pWin->mapped = TRUE;
-	if (SubStrSend(pWin, pParent) && MapUnmapEventsEnabled(pWin))
-	{
-	    memset(&event, 0, sizeof(xEvent));
-	    event.u.u.type = MapNotify;
-	    event.u.mapNotify.window = pWin->drawable.id;
-	    event.u.mapNotify.override = pWin->overrideRedirect;
-	    DeliverEvents(pWin, &event, 1, NullWindow);
-	}
-
-	if (!pParent->realized)
-	    return(Success);
-	RealizeTree(pWin);
-	if (pWin->viewable)
-	{
-	    anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin,
-							  &pLayerWin);
-	    if (anyMarked)
-	    {
-		(*pScreen->ValidateTree)(pLayerWin->parent, pLayerWin, VTMap);
-		(*pScreen->HandleExposures)(pLayerWin->parent);
-	    }
-	if (anyMarked && pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pLayerWin->parent, pLayerWin, VTMap);
-	}
-	WindowsRestructured ();
-    }
-    else
-    {
-	RegionRec   temp;
-
-	pWin->mapped = TRUE;
-	pWin->realized = TRUE;	   /* for roots */
-	pWin->viewable = pWin->drawable.class == InputOutput;
-	/* We SHOULD check for an error value here XXX */
-	(*pScreen->RealizeWindow)(pWin);
-	if (pScreen->ClipNotify)
-	    (*pScreen->ClipNotify) (pWin, 0, 0);
-	if (pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(NullWindow, pWin, VTMap);
-	REGION_NULL(pScreen, &temp);
-	REGION_COPY(pScreen, &temp, &pWin->clipList);
-	(*pScreen->WindowExposures) (pWin, &temp, NullRegion);
-	REGION_UNINIT(pScreen, &temp);
-    }
-
-    return(Success);
-}
-
-
-/*****
- * MapSubwindows
- *    Performs a MapWindow all unmapped children of the window, in top
- *    to bottom stacking order.
- *****/
-
-void
-MapSubwindows(WindowPtr pParent, ClientPtr client)
-{
-    WindowPtr	pWin;
-    WindowPtr	pFirstMapped = NullWindow;
-    ScreenPtr	pScreen;
-    Mask	parentRedirect;
-    Mask	parentNotify;
-    xEvent	event;
-    Bool	anyMarked;
-    WindowPtr		pLayerWin;
-
-    pScreen = pParent->drawable.pScreen;
-    parentRedirect = RedirectSend(pParent);
-    parentNotify = SubSend(pParent);
-    anyMarked = FALSE;
-    for (pWin = pParent->firstChild; pWin; pWin = pWin->nextSib)
-    {
-	if (!pWin->mapped)
-	{
-	    if (parentRedirect && !pWin->overrideRedirect)
-	    {
-		memset(&event, 0, sizeof(xEvent));
-		event.u.u.type = MapRequest;
-		event.u.mapRequest.window = pWin->drawable.id;
-		event.u.mapRequest.parent = pParent->drawable.id;
-    
-		if (MaybeDeliverEventsToClient(pParent, &event, 1,
-		    SubstructureRedirectMask, client) == 1)
-		    continue;
-	    }
-    
-	    pWin->mapped = TRUE;
-	    if (parentNotify || StrSend(pWin))
-	    {
-		memset(&event, 0, sizeof(xEvent));
-		event.u.u.type = MapNotify;
-		event.u.mapNotify.window = pWin->drawable.id;
-		event.u.mapNotify.override = pWin->overrideRedirect;
-		DeliverEvents(pWin, &event, 1, NullWindow);
-	    }
-    
-	    if (!pFirstMapped)
-		pFirstMapped = pWin;
-	    if (pParent->realized)
-	    {
-		RealizeTree(pWin);
-		if (pWin->viewable)
-		{
-		    anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pWin,
-							(WindowPtr *)NULL);
-		}
-	    }
-	}
-    }
-
-    if (pFirstMapped)
-    {
-	pLayerWin = (*pScreen->GetLayerWindow)(pParent);
-	if (pLayerWin->parent != pParent) {
-	    anyMarked |= (*pScreen->MarkOverlappedWindows)(pLayerWin,
-							   pLayerWin,
-							   (WindowPtr *)NULL);
-	    pFirstMapped = pLayerWin;
-	}
-        if (anyMarked)
-        {
-	    (*pScreen->ValidateTree)(pLayerWin->parent, pFirstMapped, VTMap);
-	    (*pScreen->HandleExposures)(pLayerWin->parent);
-	}
-        if (anyMarked && pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pLayerWin->parent, pFirstMapped,
-					 VTMap);
-        WindowsRestructured ();
-    }
-}
-
-static void
-UnrealizeTree(
-    WindowPtr pWin,
-    Bool fromConfigure)
-{
-    WindowPtr pChild;
-    UnrealizeWindowProcPtr Unrealize;
-    MarkUnrealizedWindowProcPtr MarkUnrealizedWindow;
-    int rc;
-
-    Unrealize = pWin->drawable.pScreen->UnrealizeWindow;
-    MarkUnrealizedWindow = pWin->drawable.pScreen->MarkUnrealizedWindow;
-    pChild = pWin;
-    while (1)
-    {
-	if (pChild->realized)
-	{
-	    pChild->realized = FALSE;
-	    pChild->visibility = VisibilityNotViewable;
-#ifdef PANORAMIX
-	    if(!noPanoramiXExtension && !pChild->drawable.pScreen->myNum) {
-		PanoramiXRes *win;
-		rc = dixLookupResourceByType((pointer *)&win,
-					     pChild->drawable.id, XRT_WINDOW,
-					     serverClient, DixWriteAccess);
-		if (rc == Success)
-		   win->u.win.visibility = VisibilityNotViewable;
-	    } 
-#endif
-	    (* Unrealize)(pChild);
-	    if (MapUnmapEventsEnabled(pWin))
-		DeleteWindowFromAnyEvents(pChild, FALSE);
-	    if (pChild->viewable)
-	    {
-		pChild->viewable = FALSE;
-		(* MarkUnrealizedWindow)(pChild, pWin, fromConfigure);
-		pChild->drawable.serialNumber = NEXT_SERIAL_NUMBER;
-	    }
-	    if (pChild->firstChild)
-	    {
-		pChild = pChild->firstChild;
-		continue;
-	    }
-	}
-	while (!pChild->nextSib && (pChild != pWin))
-	    pChild = pChild->parent;
-	if (pChild == pWin)
-	    return;
-	pChild = pChild->nextSib;
-    }
-}
-
-/*****
- * UnmapWindow
- *    If the window is already unmapped, this request has no effect.
- *    Otherwise, the window is unmapped and an UnMapNotify event is
- *    generated.  Cannot unmap a root window.
- *****/
-
-int
-UnmapWindow(WindowPtr pWin, Bool fromConfigure)
-{
-    WindowPtr pParent;
-    xEvent event;
-    Bool wasRealized = (Bool)pWin->realized;
-    Bool wasViewable = (Bool)pWin->viewable;
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    WindowPtr pLayerWin = pWin;
-
-    if ((!pWin->mapped) || (!(pParent = pWin->parent)))
-	return(Success);
-    if (SubStrSend(pWin, pParent) && MapUnmapEventsEnabled(pWin))
-    {
-	memset(&event, 0, sizeof(xEvent));
-	event.u.u.type = UnmapNotify;
-	event.u.unmapNotify.window = pWin->drawable.id;
-	event.u.unmapNotify.fromConfigure = fromConfigure;
-	DeliverEvents(pWin, &event, 1, NullWindow);
-    }
-    if (wasViewable && !fromConfigure)
-    {
-	pWin->valdata = UnmapValData;
-	(*pScreen->MarkOverlappedWindows)(pWin, pWin->nextSib, &pLayerWin);
-	(*pScreen->MarkWindow)(pLayerWin->parent);
-    }
-    pWin->mapped = FALSE;
-    if (wasRealized)
-	UnrealizeTree(pWin, fromConfigure);
-    if (wasViewable)
-    {
-	if (!fromConfigure)
-	{
-	    (*pScreen->ValidateTree)(pLayerWin->parent, pWin, VTUnmap);
-	    (*pScreen->HandleExposures)(pLayerWin->parent);
-	}
-	if (!fromConfigure && pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pLayerWin->parent, pWin, VTUnmap);
-    }
-    if (wasRealized && !fromConfigure)
-	WindowsRestructured ();
-    return(Success);
-}
-
-/*****
- * UnmapSubwindows
- *    Performs an UnmapWindow request with the specified mode on all mapped
- *    children of the window, in bottom to top stacking order.
- *****/
-
-void
-UnmapSubwindows(WindowPtr pWin)
-{
-    WindowPtr pChild, pHead;
-    xEvent event;
-    Bool wasRealized = (Bool)pWin->realized;
-    Bool wasViewable = (Bool)pWin->viewable;
-    Bool anyMarked = FALSE;
-    Mask parentNotify;
-    WindowPtr pLayerWin = NULL;
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-
-    if (!pWin->firstChild)
-	return;
-    parentNotify = SubSend(pWin);
-    pHead = RealChildHead(pWin);
-
-    if (wasViewable)
-	pLayerWin = (*pScreen->GetLayerWindow)(pWin);
-
-    for (pChild = pWin->lastChild; pChild != pHead; pChild = pChild->prevSib)
-    {
-	if (pChild->mapped)
-	{
-	    if (parentNotify || StrSend(pChild))
-	    {
-		event.u.u.type = UnmapNotify;
-		event.u.unmapNotify.window = pChild->drawable.id;
-		event.u.unmapNotify.fromConfigure = xFalse;
-		DeliverEvents(pChild, &event, 1, NullWindow);
-	    }
-	    if (pChild->viewable)
-	    {
-		pChild->valdata = UnmapValData;
-		anyMarked = TRUE;
-	    }
-	    pChild->mapped = FALSE;
-	    if (pChild->realized)
-		UnrealizeTree(pChild, FALSE);
-	    if (wasViewable)
-	    {
-	    }
-	}
-    }
-    if (wasViewable)
-    {
-	if (anyMarked)
-	{
-	    if (pLayerWin->parent == pWin)
-		(*pScreen->MarkWindow)(pWin);
-	    else
-	    {
-		WindowPtr ptmp;
-                (*pScreen->MarkOverlappedWindows)(pWin, pLayerWin,
-						  (WindowPtr *)NULL);
-		(*pScreen->MarkWindow)(pLayerWin->parent);
-		
-		/* Windows between pWin and pLayerWin may not have been marked */
-		ptmp = pWin;
- 
-		while (ptmp != pLayerWin->parent)
-		{
-		    (*pScreen->MarkWindow)(ptmp);
-		    ptmp = ptmp->parent;
-		}
-                pHead = pWin->firstChild;
-	    }
-	    (*pScreen->ValidateTree)(pLayerWin->parent, pHead, VTUnmap);
-	    (*pScreen->HandleExposures)(pLayerWin->parent);
-	}
-	if (anyMarked && pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pLayerWin->parent, pHead, VTUnmap);
-    }
-    if (wasRealized)
-	WindowsRestructured ();
-}
-
-
-void
-HandleSaveSet(ClientPtr client)
-{
-    WindowPtr pParent, pWin;
-    int j;
-
-    for (j=0; j<client->numSaved; j++)
-    {
-	pWin = SaveSetWindow(client->saveSet[j]);
-#ifdef XFIXES
-	if (SaveSetToRoot(client->saveSet[j]))
-	    pParent = WindowTable[pWin->drawable.pScreen->myNum];
-	else
-#endif
-	{
-	    pParent = pWin->parent;
-	    while (pParent && (wClient (pParent) == client))
-		pParent = pParent->parent;
-	}
-	if (pParent)
-	{
-	    if (pParent != pWin->parent)
-	    {
-#ifdef XFIXES
-		/* unmap first so that ReparentWindow doesn't remap */
-		if (!SaveSetShouldMap (client->saveSet[j]))
-		    UnmapWindow(pWin, FALSE);
-#endif
-		ReparentWindow(pWin, pParent,
-			       pWin->drawable.x - wBorderWidth (pWin) - pParent->drawable.x,
-			       pWin->drawable.y - wBorderWidth (pWin) - pParent->drawable.y,
-			       client);
-		if(!pWin->realized && pWin->mapped)
-		    pWin->mapped = FALSE;
-	    }
-#ifdef XFIXES
-	    if (SaveSetShouldMap (client->saveSet[j]))
-#endif
-		MapWindow(pWin, client);
-	}
-    }
-    xfree(client->saveSet);
-    client->numSaved = 0;
-    client->saveSet = (SaveSetElt *)NULL;
-}
-
-/**
- *
- * \param x,y  in root
- */
-Bool
-PointInWindowIsVisible(WindowPtr pWin, int x, int y)
-{
-    BoxRec box;
-
-    if (!pWin->realized)
-	return (FALSE);
-    if (POINT_IN_REGION(pWin->drawable.pScreen, &pWin->borderClip,
-						  x, y, &box)
-	&& (!wInputShape(pWin) ||
-	    POINT_IN_REGION(pWin->drawable.pScreen,
-			    wInputShape(pWin),
-			    x - pWin->drawable.x, 
-			    y - pWin->drawable.y, &box)))
-	return(TRUE);
-    return(FALSE);
-}
-
-
-RegionPtr
-NotClippedByChildren(WindowPtr pWin)
-{
-    ScreenPtr pScreen;
-    RegionPtr pReg;
-
-    pScreen = pWin->drawable.pScreen;
-    pReg = REGION_CREATE(pScreen, NullBox, 1);
-    if (pWin->parent ||
-	screenIsSaved != SCREEN_SAVER_ON ||
-	!HasSaverWindow (pWin->drawable.pScreen->myNum))
-    {
-	REGION_INTERSECT(pScreen, pReg, &pWin->borderClip, &pWin->winSize);
-    }
-    return(pReg);
-}
-
-void
-SendVisibilityNotify(WindowPtr pWin)
-{
-    xEvent event;
-#ifndef NO_XINERAMA_PORT
-    unsigned int visibility = pWin->visibility;
-#endif
-    if (!MapUnmapEventsEnabled(pWin))
-        return;
-#ifdef PANORAMIX
-    /* This is not quite correct yet, but it's close */
-    if(!noPanoramiXExtension) {
-	PanoramiXRes *win;
-	WindowPtr pWin2;
-	int rc, i, Scrnum;
-
-	Scrnum = pWin->drawable.pScreen->myNum;
-	
-	win = PanoramiXFindIDByScrnum(XRT_WINDOW, pWin->drawable.id, Scrnum);
-
-	if(!win || (win->u.win.visibility == visibility))
-	    return;
-
-	switch(visibility) {
-	case VisibilityUnobscured:
-	    for(i = 0; i < PanoramiXNumScreens; i++) {
-		if(i == Scrnum) continue;
-
-		rc = dixLookupWindow(&pWin2, win->info[i].id, serverClient,
-				     DixWriteAccess);
-
-		if (rc == Success) {
-		    if(pWin2->visibility == VisibilityPartiallyObscured)
-		   	return;
-
-		    if(!i) pWin = pWin2;
-		}
-	    }
-	    break;
-	case VisibilityPartiallyObscured:
-	    if(Scrnum) {
-		rc = dixLookupWindow(&pWin2, win->info[0].id, serverClient,
-				     DixWriteAccess);
-		if (rc == Success) pWin = pWin2;
-	    }
-	    break;
-	case VisibilityFullyObscured:
-	    for(i = 0; i < PanoramiXNumScreens; i++) {
-		if(i == Scrnum) continue;
-
-		rc = dixLookupWindow(&pWin2, win->info[i].id, serverClient,
-				     DixWriteAccess);
-		
-		if (rc == Success) {
-		    if(pWin2->visibility != VisibilityFullyObscured)
-		    	return;
-
-		    if(!i) pWin = pWin2;
-		}
-	    }
-	    break;
-	}
-	
-	win->u.win.visibility = visibility;
-    }
-#endif
-
-    memset(&event, 0, sizeof(xEvent));
-    event.u.u.type = VisibilityNotify;
-    event.u.visibility.window = pWin->drawable.id;
-    event.u.visibility.state = visibility;
-    DeliverEvents(pWin, &event, 1, NullWindow);
-}
-
-#define RANDOM_WIDTH 32
-
-#ifndef NOLOGOHACK
-static void DrawLogo(
-    WindowPtr pWin
-);
-#endif
-
-int
-dixSaveScreens(ClientPtr client, int on, int mode)
-{
-    int rc, i, what, type;
-
-    if (on == SCREEN_SAVER_FORCER)
-    {
-	if (mode == ScreenSaverReset)
-	    what = SCREEN_SAVER_OFF;
-	else
-	    what = SCREEN_SAVER_ON;
-	type = what;
-    }
-    else
-    {
-	what = on;
-	type = what;
-	if (what == screenIsSaved)
-	    type = SCREEN_SAVER_CYCLE;
-    }
-
-    for (i = 0; i < screenInfo.numScreens; i++) {
-	rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i],
-		      DixShowAccess | DixHideAccess);
-	if (rc != Success)
-	    return rc;
-    }
-    for (i = 0; i < screenInfo.numScreens; i++)
-    {
-	if (on == SCREEN_SAVER_FORCER)
-	   (* screenInfo.screens[i]->SaveScreen) (screenInfo.screens[i], on);
-	if (savedScreenInfo[i].ExternalScreenSaver)
-	{
-	    if ((*savedScreenInfo[i].ExternalScreenSaver)
-		(screenInfo.screens[i], type, on == SCREEN_SAVER_FORCER))
-		continue;
-	}
-	if (type == screenIsSaved)
-	    continue;
-	switch (type) {
-	case SCREEN_SAVER_OFF:
-	    if (savedScreenInfo[i].blanked == SCREEN_IS_BLANKED)
-	    {
-	       (* screenInfo.screens[i]->SaveScreen) (screenInfo.screens[i],
-						      what);
-	    }
-	    else if (HasSaverWindow (i))
-	    {
-		savedScreenInfo[i].pWindow = NullWindow;
-		FreeResource(savedScreenInfo[i].wid, RT_NONE);
-	    }
-	    break;
-	case SCREEN_SAVER_CYCLE:
-	    if (savedScreenInfo[i].blanked == SCREEN_IS_TILED)
-	    {
-		WindowPtr pWin = savedScreenInfo[i].pWindow;
-		/* make it look like screen saver is off, so that
-		 * NotClippedByChildren will compute a clip list
-		 * for the root window, so miPaintWindow works
-		 */
-		screenIsSaved = SCREEN_SAVER_OFF;
-#ifndef NOLOGOHACK
-		if (logoScreenSaver)
-		    (*pWin->drawable.pScreen->ClearToBackground)(pWin, 0, 0, 0, 0, FALSE);
-#endif
-		(*pWin->drawable.pScreen->MoveWindow)(pWin,
-			   (short)(-(rand() % RANDOM_WIDTH)),
-			   (short)(-(rand() % RANDOM_WIDTH)),
-			   pWin->nextSib, VTMove);
-#ifndef NOLOGOHACK
-		if (logoScreenSaver)
-		    DrawLogo(pWin);
-#endif
-		screenIsSaved = SCREEN_SAVER_ON;
-	    }
-	    /*
-	     * Call the DDX saver in case it wants to do something
-	     * at cycle time
-	     */
-	    else if (savedScreenInfo[i].blanked == SCREEN_IS_BLANKED)
-	    {
-		(* screenInfo.screens[i]->SaveScreen) (screenInfo.screens[i],
-						       type);
-	    }
-	    break;
-	case SCREEN_SAVER_ON:
-	    if (ScreenSaverBlanking != DontPreferBlanking)
-	    {
-		if ((* screenInfo.screens[i]->SaveScreen)
-		   (screenInfo.screens[i], what))
-		{
-		   savedScreenInfo[i].blanked = SCREEN_IS_BLANKED;
-		   continue;
-		}
-		if ((ScreenSaverAllowExposures != DontAllowExposures) &&
-		    TileScreenSaver(i, SCREEN_IS_BLACK))
-		{
-		    savedScreenInfo[i].blanked = SCREEN_IS_BLACK;
-		    continue;
-		}
-	    }
-	    if ((ScreenSaverAllowExposures != DontAllowExposures) &&
-		TileScreenSaver(i, SCREEN_IS_TILED))
-	    {
-		savedScreenInfo[i].blanked = SCREEN_IS_TILED;
-	    }
-	    else
-		savedScreenInfo[i].blanked = SCREEN_ISNT_SAVED;
-	    break;
-	}
-    }
-    screenIsSaved = what;
-    if (mode == ScreenSaverReset)
-       SetScreenSaverTimer();
-    return Success;
-}
-
-int
-SaveScreens(int on, int mode)
-{
-    return dixSaveScreens(serverClient, on, mode);
-}
-
-static Bool
-TileScreenSaver(int i, int kind)
-{
-    int j;
-    int result;
-    XID attributes[3];
-    Mask mask;
-    WindowPtr pWin;		
-    CursorMetricRec cm;
-    unsigned char *srcbits, *mskbits;
-    CursorPtr cursor;
-    XID	cursorID = 0;
-    int	attri;
-
-    mask = 0;
-    attri = 0;
-    switch (kind) {
-    case SCREEN_IS_TILED:
-	switch (WindowTable[i]->backgroundState) {
-	case BackgroundPixel:
-	    attributes[attri++] = WindowTable[i]->background.pixel;
-	    mask |= CWBackPixel;
-	    break;
-	case BackgroundPixmap:
-	    attributes[attri++] = None;
-	    mask |= CWBackPixmap;
-	    break;
-	default:
-	    break;
-	}
-	break;
-    case SCREEN_IS_BLACK:
-	attributes[attri++] = WindowTable[i]->drawable.pScreen->blackPixel;
-	mask |= CWBackPixel;
-	break;
-    }
-    mask |= CWOverrideRedirect;
-    attributes[attri++] = xTrue;
-
-    /*
-     * create a blank cursor
-     */
-
-    cm.width=16;
-    cm.height=16;
-    cm.xhot=8;
-    cm.yhot=8;
-    srcbits = xalloc( BitmapBytePad(32)*16);
-    mskbits = xalloc( BitmapBytePad(32)*16);
-    if (!srcbits || !mskbits)
-    {
-	xfree(srcbits);
-	xfree(mskbits);
-	cursor = 0;
-    }
-    else
-    {
-	for (j=0; j<BitmapBytePad(32)*16; j++)
-	    srcbits[j] = mskbits[j] = 0x0;
-	result = AllocARGBCursor(srcbits, mskbits, NULL, &cm, 0, 0, 0, 0, 0, 0,
-				 &cursor, serverClient, (XID)0);
-	if (cursor)
-	{
-	    cursorID = FakeClientID(0);
-	    if (AddResource (cursorID, RT_CURSOR, (pointer) cursor))
-	    {
-		attributes[attri] = cursorID;
-		mask |= CWCursor;
-	    }
-	    else
-		cursor = 0;
-	}
-	else
-	{
-	    xfree (srcbits);
-	    xfree (mskbits);
-	}
-    }
-
-    pWin = savedScreenInfo[i].pWindow =
-	 CreateWindow(savedScreenInfo[i].wid,
-	      WindowTable[i],
-	      -RANDOM_WIDTH, -RANDOM_WIDTH,
-	      (unsigned short)screenInfo.screens[i]->width + RANDOM_WIDTH,
-	      (unsigned short)screenInfo.screens[i]->height + RANDOM_WIDTH,
-	      0, InputOutput, mask, attributes, 0, serverClient,
-	      wVisual (WindowTable[i]), &result);
-
-    if (cursor)
-	FreeResource (cursorID, RT_NONE);
-
-    if (!pWin)
-	return FALSE;
-
-    if (!AddResource(pWin->drawable.id, RT_WINDOW,
-		     (pointer)savedScreenInfo[i].pWindow))
-	return FALSE;
-
-    if (mask & CWBackPixmap)
-    {
-	MakeRootTile (pWin);
-	(*pWin->drawable.pScreen->ChangeWindowAttributes)(pWin, CWBackPixmap);
-    }
-    MapWindow(pWin, serverClient);
-#ifndef NOLOGOHACK
-    if (kind == SCREEN_IS_TILED && logoScreenSaver)
-	DrawLogo(pWin);
-#endif
-    return TRUE;
-}
-
-/*
- * FindWindowWithOptional
- *
- * search ancestors of the given window for an entry containing
- * a WindowOpt structure.  Assumptions:	 some parent will
- * contain the structure.
- */
-
-WindowPtr
-FindWindowWithOptional (WindowPtr w)
-{
-    do
-	w = w->parent;
-    while (!w->optional);
-    return w;
-}
-
-/*
- * CheckWindowOptionalNeed
- *
- * check each optional entry in the given window to see if
- * the value is satisfied by the default rules.	 If so,
- * release the optional record
- */
-
-void
-CheckWindowOptionalNeed (WindowPtr w)
-{
-    WindowOptPtr optional;
-    WindowOptPtr parentOptional;
-
-    if (!w->parent || !w->optional)
-	return;
-    optional = w->optional;
-    if (optional->dontPropagateMask != DontPropagateMasks[w->dontPropagate])
-	return;
-    if (optional->otherEventMasks != 0)
-	return;
-    if (optional->otherClients != NULL)
-	return;
-    if (optional->passiveGrabs != NULL)
-	return;
-    if (optional->userProps != NULL)
-	return;
-    if (optional->backingBitPlanes != ~0L)
-	return;
-    if (optional->backingPixel != 0)
-	return;
-    if (optional->boundingShape != NULL)
-	return;
-    if (optional->clipShape != NULL)
-	return;
-    if (optional->inputShape != NULL)
-	return;
-    if (optional->inputMasks != NULL)
-	return;
-    if (optional->deviceCursors != NULL)
-    {
-        DevCursNodePtr pNode = optional->deviceCursors;
-        while(pNode)
-        {
-            if (pNode->cursor != None)
-                return;
-            pNode = pNode->next;
-        }
-    }
-
-    parentOptional = FindWindowWithOptional(w)->optional;
-    if (optional->visual != parentOptional->visual)
-	return;
-    if (optional->cursor != None &&
-	(optional->cursor != parentOptional->cursor ||
-	 w->parent->cursorIsNone))
-	return;
-    if (optional->colormap != parentOptional->colormap)
-	return;
-    DisposeWindowOptional (w);
-}
-
-/*
- * MakeWindowOptional
- *
- * create an optional record and initialize it with the default
- * values.
- */
-
-Bool
-MakeWindowOptional (WindowPtr pWin)
-{
-    WindowOptPtr optional;
-    WindowOptPtr parentOptional;
-
-    if (pWin->optional)
-	return TRUE;
-    optional = xalloc (sizeof (WindowOptRec));
-    if (!optional)
-	return FALSE;
-    optional->dontPropagateMask = DontPropagateMasks[pWin->dontPropagate];
-    optional->otherEventMasks = 0;
-    optional->otherClients = NULL;
-    optional->passiveGrabs = NULL;
-    optional->userProps = NULL;
-    optional->backingBitPlanes = ~0L;
-    optional->backingPixel = 0;
-    optional->boundingShape = NULL;
-    optional->clipShape = NULL;
-    optional->inputShape = NULL;
-    optional->inputMasks = NULL;
-    optional->deviceCursors = NULL;
-
-    parentOptional = FindWindowWithOptional(pWin)->optional;
-    optional->visual = parentOptional->visual;
-    if (!pWin->cursorIsNone)
-    {
-	optional->cursor = parentOptional->cursor;
-	optional->cursor->refcnt++;
-    }
-    else
-    {
-	optional->cursor = None;
-    }
-    optional->colormap = parentOptional->colormap;
-    pWin->optional = optional;
-    return TRUE;
-}
-
-/*
- * Changes the cursor struct for the given device and the given window.
- * A cursor that does not have a device cursor set will use whatever the
- * standard cursor is for the window. If all devices have a cursor set,
- * changing the window cursor (e.g. using XDefineCursor()) will not have any
- * visible effect. Only when one of the device cursors is set to None again,
- * this device's cursor will display the changed standard cursor.
- * 
- * CursorIsNone of the window struct is NOT modified if you set a device
- * cursor. 
- *
- * Assumption: If there is a node for a device in the list, the device has a
- * cursor. If the cursor is set to None, it is inherited by the parent.
- */
-int
-ChangeWindowDeviceCursor(WindowPtr pWin, 
-                         DeviceIntPtr pDev, 
-                         CursorPtr pCursor) 
-{
-    DevCursNodePtr pNode, pPrev;
-    CursorPtr pOldCursor = NULL;
-    ScreenPtr pScreen;
-    WindowPtr pChild;
-
-    if (!pWin->optional && !MakeWindowOptional(pWin))
-        return BadAlloc;
-
-    /* 1) Check if window has device cursor set
-     *  Yes: 1.1) swap cursor with given cursor if parent does not have same
-     *            cursor, free old cursor
-     *       1.2) free old cursor, use parent cursor
-     *  No: 1.1) add node to beginning of list.
-     *      1.2) add cursor to node if parent does not have same cursor
-     *      1.3) use parent cursor if parent does not have same cursor
-     *  2) Patch up children if child has a devcursor
-     *  2.1) if child has cursor None, it inherited from parent, set to old
-     *  cursor
-     *  2.2) if child has same cursor as new cursor, remove and set to None
-     */
-
-    pScreen = pWin->drawable.pScreen;
-
-    if (WindowSeekDeviceCursor(pWin, pDev, &pNode, &pPrev))
-    {
-        /* has device cursor */
-
-        if (pNode->cursor == pCursor)
-            return Success;
-
-        pOldCursor = pNode->cursor;
-
-        if (!pCursor) /* remove from list */
-        {
-                if(pPrev)
-                    pPrev->next = pNode->next;
-                else
-                    /* first item in list */
-                    pWin->optional->deviceCursors = pNode->next;
-
-            xfree(pNode);
-            goto out;
-        }
-
-    } else
-    {
-        /* no device cursor yet */
-        DevCursNodePtr pNewNode;
-
-        if (!pCursor)
-            return Success;
-
-        pNewNode = xalloc(sizeof(DevCursNodeRec));
-        pNewNode->dev = pDev;
-        pNewNode->next = pWin->optional->deviceCursors;
-        pWin->optional->deviceCursors = pNewNode;
-        pNode = pNewNode;
-
-    }
-
-    if (pCursor && WindowParentHasDeviceCursor(pWin, pDev, pCursor))
-        pNode->cursor = None;
-    else
-    {
-        pNode->cursor = pCursor;
-        pCursor->refcnt++;
-    }
-
-    pNode = pPrev = NULL;
-    /* fix up children */
-    for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)
-    {
-        if (WindowSeekDeviceCursor(pChild, pDev, &pNode, &pPrev))
-        {
-            if (pNode->cursor == None) /* inherited from parent */
-            {
-                pNode->cursor = pOldCursor;
-                pOldCursor->refcnt++;
-            } else if (pNode->cursor == pCursor)
-            {
-                pNode->cursor = None;
-                FreeCursor(pCursor, (Cursor)0); /* fix up refcnt */
-            }
-        }
-    }
-
-out:
-    if (pWin->realized)
-        WindowHasNewCursor(pWin);
-
-    if (pOldCursor)
-        FreeCursor(pOldCursor, (Cursor)0);
-
-    /* FIXME: We SHOULD check for an error value here XXX  
-       (comment taken from ChangeWindowAttributes) */
-    (*pScreen->ChangeWindowAttributes)(pWin, CWCursor);
-
-    return Success;
-}
-
-/* Get device cursor for given device or None if none is set */
-CursorPtr
-WindowGetDeviceCursor(WindowPtr pWin, DeviceIntPtr pDev)
-{
-    DevCursorList pList;
-
-    if (!pWin->optional || !pWin->optional->deviceCursors)
-        return NULL;
-
-    pList = pWin->optional->deviceCursors;
-
-    while(pList)
-    {
-        if (pList->dev == pDev)
-        {
-            if (pList->cursor == None) /* inherited from parent */
-                return WindowGetDeviceCursor(pWin->parent, pDev);
-            else
-                return pList->cursor;
-        }
-        pList = pList->next;
-    }
-    return NULL;
-}
-
-/* Searches for a DevCursorNode for the given window and device. If one is
- * found, return True and set pNode and pPrev to the node and to the node
- * before the node respectively. Otherwise return False.
- * If the device is the first in list, pPrev is set to NULL.
- */
-static Bool 
-WindowSeekDeviceCursor(WindowPtr pWin, 
-                       DeviceIntPtr pDev, 
-                       DevCursNodePtr* pNode, 
-                       DevCursNodePtr* pPrev)
-{
-    DevCursorList pList;
-
-    if (!pWin->optional)
-        return FALSE;
-
-    pList = pWin->optional->deviceCursors;
-
-    if (pList && pList->dev == pDev)
-    {
-        *pNode = pList;
-        *pPrev = NULL;
-        return TRUE;
-    }
-
-    while(pList)
-    {
-        if (pList->next)
-        {
-            if (pList->next->dev == pDev)
-            {
-                *pNode = pList->next;
-                *pPrev = pList;
-                return TRUE;
-            }
-        }
-        pList = pList->next;
-    }
-    return FALSE;
-}
-
-/* Return True if a parent has the same device cursor set or False if
- * otherwise 
- */ 
-static Bool 
-WindowParentHasDeviceCursor(WindowPtr pWin, 
-                            DeviceIntPtr pDev, 
-                            CursorPtr pCursor)
-{
-    WindowPtr pParent;
-    DevCursNodePtr pParentNode, pParentPrev;
-
-    pParent = pWin->parent;
-    while(pParent)
-    {
-        if (WindowSeekDeviceCursor(pParent, pDev, 
-                    &pParentNode, &pParentPrev))
-        {
-            /* if there is a node in the list, the win has a dev cursor */
-            if (!pParentNode->cursor) /* inherited. loop needs to cont. */
-            {
-            } else if (pParentNode->cursor == pCursor) /* inherit */
-                return TRUE;
-            else  /* different cursor */
-                return FALSE;
-        } 
-        else 
-            /* parent does not have a device cursor for our device */
-            return FALSE;
-    }
-    return FALSE;
-}
-
-#ifndef NOLOGOHACK
-static void
-DrawLogo(WindowPtr pWin)
-{
-    DrawablePtr pDraw;
-    ScreenPtr pScreen;
-    int x, y;
-    unsigned int width, height, size;
-    GC *pGC;
-    int rc, thin, gap, d31;
-    DDXPointRec poly[4];
-    ChangeGCVal fore[2], back[2];
-    xrgb rgb[2];
-    BITS32 fmask, bmask;
-    ColormapPtr cmap;
-
-    pDraw = (DrawablePtr)pWin;
-    pScreen = pDraw->pScreen;
-    x = -pWin->origin.x;
-    y = -pWin->origin.y;
-    width = pScreen->width;
-    height = pScreen->height;
-    pGC = GetScratchGC(pScreen->rootDepth, pScreen);
-    if (!pGC)
-	return;
-
-    if ((rand() % 100) <= 17) /* make the probability for white fairly low */
-	fore[0].val = pScreen->whitePixel;
-    else
-	fore[0].val = pScreen->blackPixel;
-    if (pWin->backgroundState == BackgroundPixel) {
-	rc = dixLookupResourceByType((pointer *)&cmap, wColormap(pWin),
-				     RT_COLORMAP, serverClient, DixReadAccess);
-	if (rc == Success) {
-	    Pixel querypixels[2];
-
-	    querypixels[0] = fore[0].val;
-	    querypixels[1] = pWin->background.pixel;
-	    QueryColors(cmap, 2, querypixels, rgb);
-	    if ((rgb[0].red == rgb[1].red) &&
-		(rgb[0].green == rgb[1].green) &&
-		(rgb[0].blue == rgb[1].blue)) {
-		if (fore[0].val == pScreen->blackPixel)
-		    fore[0].val = pScreen->whitePixel;
-		else
-		    fore[0].val = pScreen->blackPixel;
-	    }
-	}
-    }
-    fore[1].val = FillSolid;
-    fmask = GCForeground|GCFillStyle;
-    if (pWin->backgroundState == BackgroundPixel) {
-	back[0].val = pWin->background.pixel;
-	back[1].val = FillSolid;
-	bmask = GCForeground|GCFillStyle;
-    } else {
-	back[0].val = 0;
-	back[1].val = 0;
-	dixChangeGC(NullClient, pGC, GCTileStipXOrigin|GCTileStipYOrigin,
-		    NULL, back);
-	back[0].val = FillTiled;
-	back[1].ptr = pWin->background.pixmap;
-	bmask = GCFillStyle|GCTile;
-    }
-
-    /* should be the same as the reference function XmuDrawLogo() */
-
-    size = width;
-    if (height < width)
-	 size = height;
-    size = RANDOM_WIDTH + rand() % (size - RANDOM_WIDTH);
-    size &= ~1;
-    x += rand() % (width - size);
-    y += rand() % (height - size);
-
-/*
- * Draw what will be the thin strokes.
- *
- *           -----
- *          /    /
- *         /    /
- *        /    /
- *       /    /
- *      /____/
- *           d
- *
- * Point d is 9/44 (~1/5) of the way across.
- */
-
-    thin = (size / 11);
-    if (thin < 1) thin = 1;
-    gap = (thin+3) / 4;
-    d31 = thin + thin + gap;
-    poly[0].x = x + size;	       poly[0].y = y;
-    poly[1].x = x + size-d31;	       poly[1].y = y;
-    poly[2].x = x + 0;		       poly[2].y = y + size;
-    poly[3].x = x + d31;	       poly[3].y = y + size;
-    dixChangeGC(NullClient, pGC, fmask, NULL, fore);
-    ValidateGC(pDraw, pGC);
-    (*pGC->ops->FillPolygon)(pDraw, pGC, Convex, CoordModeOrigin, 4, poly);
-
-/*
- * Erase area not needed for lower thin stroke.
- *
- *           ------
- *          /	  /
- *         /  __ /
- *        /  /	/
- *       /  /  /
- *      /__/__/
- */
-
-    poly[0].x = x + d31/2;			 poly[0].y = y + size;
-    poly[1].x = x + size / 2;			 poly[1].y = y + size/2;
-    poly[2].x = x + (size/2)+(d31-(d31/2));	 poly[2].y = y + size/2;
-    poly[3].x = x + d31;			 poly[3].y = y + size;
-    dixChangeGC(NullClient, pGC, bmask, NULL, back);
-    ValidateGC(pDraw, pGC);
-    (*pGC->ops->FillPolygon)(pDraw, pGC, Convex, CoordModeOrigin, 4, poly);
-
-/*
- * Erase area not needed for upper thin stroke.
- *
- *	     ------
- *	    /  /  /
- *	   /--/	 /
- *	  /	/
- *	 /     /
- *	/_____/
- */
-
-    poly[0].x = x + size - d31/2;		 poly[0].y = y;
-    poly[1].x = x + size / 2;			 poly[1].y = y + size/2;
-    poly[2].x = x + (size/2)-(d31-(d31/2));	 poly[2].y = y + size/2;
-    poly[3].x = x + size - d31;			 poly[3].y = y;
-    ValidateGC(pDraw, pGC);
-    (*pGC->ops->FillPolygon)(pDraw, pGC, Convex, CoordModeOrigin, 4, poly);
-
-/*
- * Draw thick stroke.
- * Point b is 1/4 of the way across.
- *
- *      b
- * -----
- * \	\
- *  \	 \
- *   \	  \
- *    \	   \
- *     \____\
- */
-
-    poly[0].x = x;		       poly[0].y = y;
-    poly[1].x = x + size/4;	       poly[1].y = y;
-    poly[2].x = x + size;	       poly[2].y = y + size;
-    poly[3].x = x + size - size/4;     poly[3].y = y + size;
-    dixChangeGC(NullClient, pGC, fmask, NULL, fore);
-    ValidateGC(pDraw, pGC);
-    (*pGC->ops->FillPolygon)(pDraw, pGC, Convex, CoordModeOrigin, 4, poly);
-
-/*
- * Erase to create gap.
- *
- *	    /
- *	   /
- *	  /
- *	 /
- *	/
- */
-
-    poly[0].x = x + size- thin;	      poly[0].y = y;
-    poly[1].x = x + size-( thin+gap);  poly[1].y = y;
-    poly[2].x = x + thin;	      poly[2].y = y + size;
-    poly[3].x = x + thin + gap;	      poly[3].y = y + size;
-    dixChangeGC(NullClient, pGC, bmask, NULL, back);
-    ValidateGC(pDraw, pGC);
-    (*pGC->ops->FillPolygon)(pDraw, pGC, Convex, CoordModeOrigin, 4, poly);
-
-    FreeScratchGC(pGC);
-}
-
-#endif
+/*

+

+Copyright (c) 2006, Red Hat, Inc.

+

+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 (including the next

+paragraph) 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 AUTHORS OR 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.

+

+Copyright 1987, 1998  The Open Group

+

+Permission to use, copy, modify, distribute, and sell this software and its

+documentation for any purpose is hereby granted without fee, provided that

+the above copyright notice appear in all copies and that both that

+copyright notice and this permission notice appear in supporting

+documentation.

+

+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 OPEN GROUP 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 name of The Open Group shall

+not be used in advertising or otherwise to promote the sale, use or

+other dealings in this Software without prior written authorization

+from The Open Group.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,

+

+			All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+*/

+

+/* The panoramix components contained the following notice */

+/*****************************************************************

+

+Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.

+

+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.

+

+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

+DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,

+BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 name of Digital Equipment Corporation

+shall not be used in advertising or otherwise to promote the sale, use or other

+dealings in this Software without prior written authorization from Digital

+Equipment Corporation.

+

+******************************************************************/

+

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include "misc.h"

+#include "scrnintstr.h"

+#include "os.h"

+#include "regionstr.h"

+#include "validate.h"

+#include "windowstr.h"

+#include "input.h"

+#include "inputstr.h"

+#include "resource.h"

+#include "colormapst.h"

+#include "cursorstr.h"

+#include "dixstruct.h"

+#include "gcstruct.h"

+#include "servermd.h"

+#ifdef PANORAMIX

+#include "panoramiX.h"

+#include "panoramiXsrv.h"

+#endif

+#include "dixevents.h"

+#include "globals.h"

+#include "mi.h" /* miPaintWindow */

+

+#include "privates.h"

+#include "xace.h"

+

+/******

+ * Window stuff for server 

+ *

+ *    CreateRootWindow, CreateWindow, ChangeWindowAttributes,

+ *    GetWindowAttributes, DeleteWindow, DestroySubWindows,

+ *    HandleSaveSet, ReparentWindow, MapWindow, MapSubWindows,

+ *    UnmapWindow, UnmapSubWindows, ConfigureWindow, CirculateWindow,

+ *    ChangeWindowDeviceCursor

+ ******/

+

+static unsigned char _back_lsb[4] = {0x88, 0x22, 0x44, 0x11};

+static unsigned char _back_msb[4] = {0x11, 0x44, 0x22, 0x88};

+

+static Bool WindowParentHasDeviceCursor(WindowPtr pWin, 

+                                        DeviceIntPtr pDev, 

+                                        CursorPtr pCurs);

+static Bool 

+WindowSeekDeviceCursor(WindowPtr pWin, 

+                       DeviceIntPtr pDev, 

+                       DevCursNodePtr* pNode, 

+                       DevCursNodePtr* pPrev);

+

+int screenIsSaved = SCREEN_SAVER_OFF;

+

+ScreenSaverStuffRec savedScreenInfo[MAXSCREENS];

+

+static int FocusPrivatesKeyIndex;

+DevPrivateKey FocusPrivatesKey = &FocusPrivatesKeyIndex;

+

+static Bool TileScreenSaver(int i, int kind);

+

+

+#define INPUTONLY_LEGAL_MASK (CWWinGravity | CWEventMask | \

+			      CWDontPropagate | CWOverrideRedirect | CWCursor )

+

+#define BOXES_OVERLAP(b1, b2) \

+      (!( ((b1)->x2 <= (b2)->x1)  || \

+	( ((b1)->x1 >= (b2)->x2)) || \

+	( ((b1)->y2 <= (b2)->y1)) || \

+	( ((b1)->y1 >= (b2)->y2)) ) )

+

+#define RedirectSend(pWin) \

+    ((pWin->eventMask|wOtherEventMasks(pWin)) & SubstructureRedirectMask)

+

+#define SubSend(pWin) \

+    ((pWin->eventMask|wOtherEventMasks(pWin)) & SubstructureNotifyMask)

+

+#define StrSend(pWin) \

+    ((pWin->eventMask|wOtherEventMasks(pWin)) & StructureNotifyMask)

+

+#define SubStrSend(pWin,pParent) (StrSend(pWin) || SubSend(pParent))

+

+#ifdef DEBUG

+/******

+ * PrintWindowTree

+ *    For debugging only

+ ******/

+

+static void

+PrintChildren(WindowPtr p1, int indent)

+{

+    WindowPtr p2;

+    int i;

+

+    while (p1)

+    {

+	p2 = p1->firstChild;

+        ErrorF("[dix] ");

+	for (i=0; i<indent; i++) ErrorF(" ");

+	ErrorF("%lx\n", p1->drawable.id);

+	miPrintRegion(&p1->clipList);

+	PrintChildren(p2, indent+4);

+	p1 = p1->nextSib;

+    }

+}

+

+static void

+PrintWindowTree(void)

+{

+    int i;

+    WindowPtr pWin, p1;

+

+    for (i=0; i<screenInfo.numScreens; i++)

+    {

+	ErrorF("[dix] WINDOW %d\n", i);

+	pWin = WindowTable[i];

+	miPrintRegion(&pWin->clipList);

+	p1 = pWin->firstChild;

+	PrintChildren(p1, 4);

+    }

+}

+#endif

+

+int

+TraverseTree(WindowPtr pWin, VisitWindowProcPtr func, pointer data)

+{

+    int result;

+    WindowPtr pChild;

+

+    if (!(pChild = pWin))

+       return(WT_NOMATCH);

+    while (1)

+    {

+	result = (* func)(pChild, data);

+	if (result == WT_STOPWALKING)

+	    return(WT_STOPWALKING);

+	if ((result == WT_WALKCHILDREN) && pChild->firstChild)

+	{

+	    pChild = pChild->firstChild;

+	    continue;

+	}

+	while (!pChild->nextSib && (pChild != pWin))

+	    pChild = pChild->parent;

+	if (pChild == pWin)

+	    break;

+	pChild = pChild->nextSib;

+    }

+    return(WT_NOMATCH);

+}

+

+/*****

+ * WalkTree

+ *   Walk the window tree, for SCREEN, preforming FUNC(pWin, data) on

+ *   each window.  If FUNC returns WT_WALKCHILDREN, traverse the children,

+ *   if it returns WT_DONTWALKCHILDREN, dont.  If it returns WT_STOPWALKING

+ *   exit WalkTree.  Does depth-first traverse.

+ *****/

+

+int

+WalkTree(ScreenPtr pScreen, VisitWindowProcPtr func, pointer data)

+{

+    return(TraverseTree(WindowTable[pScreen->myNum], func, data));

+}

+

+/* hack for forcing backing store on all windows */

+int	defaultBackingStore = NotUseful;

+/* hack to force no backing store */

+Bool	disableBackingStore = FALSE;

+Bool	enableBackingStore = FALSE;

+

+static void

+SetWindowToDefaults(WindowPtr pWin)

+{

+    pWin->prevSib = NullWindow;

+    pWin->firstChild = NullWindow;

+    pWin->lastChild = NullWindow;

+

+    pWin->valdata = (ValidatePtr)NULL;

+    pWin->optional = (WindowOptPtr)NULL;

+    pWin->cursorIsNone = TRUE;

+

+    pWin->backingStore = NotUseful;

+    pWin->DIXsaveUnder = FALSE;

+    pWin->backStorage = (pointer) NULL;

+

+    pWin->mapped = FALSE;	    /* off */

+    pWin->realized = FALSE;	/* off */

+    pWin->viewable = FALSE;

+    pWin->visibility = VisibilityNotViewable;

+    pWin->overrideRedirect = FALSE;

+    pWin->saveUnder = FALSE;

+

+    pWin->bitGravity = ForgetGravity;

+    pWin->winGravity = NorthWestGravity;

+

+    pWin->eventMask = 0;

+    pWin->deliverableEvents = 0;

+    pWin->dontPropagate = 0;

+    pWin->forcedBS = FALSE;

+    pWin->redirectDraw = RedirectDrawNone;

+    pWin->forcedBG = FALSE;

+

+#ifdef ROOTLESS

+    pWin->rootlessUnhittable = FALSE;

+#endif

+}

+

+static void

+MakeRootTile(WindowPtr pWin)

+{

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    GCPtr pGC;

+    unsigned char back[128];

+    int len = BitmapBytePad(sizeof(long));

+    unsigned char *from, *to;

+    int i, j;

+

+    pWin->background.pixmap = (*pScreen->CreatePixmap)(pScreen, 4, 4,

+						    pScreen->rootDepth, 0);

+

+    pWin->backgroundState = BackgroundPixmap;

+    pGC = GetScratchGC(pScreen->rootDepth, pScreen);

+    if (!pWin->background.pixmap || !pGC)

+	FatalError("could not create root tile");

+

+    {

+	CARD32 attributes[2];

+

+	attributes[0] = pScreen->whitePixel;

+	attributes[1] = pScreen->blackPixel;

+

+	(void)ChangeGC(pGC, GCForeground | GCBackground, attributes);

+    }

+

+   ValidateGC((DrawablePtr)pWin->background.pixmap, pGC);

+

+   from = (screenInfo.bitmapBitOrder == LSBFirst) ? _back_lsb : _back_msb;

+   to = back;

+

+   for (i = 4; i > 0; i--, from++)

+	for (j = len; j > 0; j--)

+	    *to++ = *from;

+

+   (*pGC->ops->PutImage)((DrawablePtr)pWin->background.pixmap, pGC, 1,

+		    0, 0, len, 4, 0, XYBitmap, (char *)back);

+

+   FreeScratchGC(pGC);

+

+}

+

+/*****

+ * CreateRootWindow

+ *    Makes a window at initialization time for specified screen

+ *****/

+

+Bool

+CreateRootWindow(ScreenPtr pScreen)

+{

+    WindowPtr	pWin;

+    BoxRec	box;

+    PixmapFormatRec *format;

+

+    pWin = xalloc(sizeof(WindowRec));

+    if (!pWin)

+	return FALSE;

+

+    savedScreenInfo[pScreen->myNum].pWindow = NULL;

+    savedScreenInfo[pScreen->myNum].wid = FakeClientID(0);

+    savedScreenInfo[pScreen->myNum].ExternalScreenSaver = NULL;

+    screenIsSaved = SCREEN_SAVER_OFF;

+

+    WindowTable[pScreen->myNum] = pWin;

+

+    pWin->drawable.pScreen = pScreen;

+    pWin->drawable.type = DRAWABLE_WINDOW;

+    pWin->devPrivates = NULL;

+

+    pWin->drawable.depth = pScreen->rootDepth;

+    for (format = screenInfo.formats;

+	 format->depth != pScreen->rootDepth;

+	 format++)

+	;

+    pWin->drawable.bitsPerPixel = format->bitsPerPixel;

+

+    pWin->drawable.serialNumber = NEXT_SERIAL_NUMBER;

+

+    pWin->parent = NullWindow;

+    SetWindowToDefaults(pWin);

+

+    pWin->optional = xalloc (sizeof (WindowOptRec));

+    if (!pWin->optional)

+        return FALSE;

+

+    pWin->optional->dontPropagateMask = 0;

+    pWin->optional->otherEventMasks = 0;

+    pWin->optional->otherClients = NULL;

+    pWin->optional->passiveGrabs = NULL;

+    pWin->optional->userProps = NULL;

+    pWin->optional->backingBitPlanes = ~0L;

+    pWin->optional->backingPixel = 0;

+    pWin->optional->boundingShape = NULL;

+    pWin->optional->clipShape = NULL;

+    pWin->optional->inputShape = NULL;

+    pWin->optional->inputMasks = NULL;

+    pWin->optional->deviceCursors = NULL;

+    pWin->optional->colormap = pScreen->defColormap;

+    pWin->optional->visual = pScreen->rootVisual;

+

+    pWin->nextSib = NullWindow;

+

+    pWin->drawable.id = FakeClientID(0);

+

+    pWin->origin.x = pWin->origin.y = 0;

+    pWin->drawable.height = pScreen->height;

+    pWin->drawable.width = pScreen->width;

+    pWin->drawable.x = pWin->drawable.y = 0;

+

+    box.x1 = 0;

+    box.y1 = 0;

+    box.x2 = pScreen->width;

+    box.y2 = pScreen->height;

+    REGION_INIT(pScreen, &pWin->clipList, &box, 1);

+    REGION_INIT(pScreen, &pWin->winSize, &box, 1);

+    REGION_INIT(pScreen, &pWin->borderSize, &box, 1);

+    REGION_INIT(pScreen, &pWin->borderClip, &box, 1);

+

+    pWin->drawable.class = InputOutput;

+    pWin->optional->visual = pScreen->rootVisual;

+

+    pWin->backgroundState = BackgroundPixel;

+    pWin->background.pixel = pScreen->whitePixel;

+

+    pWin->borderIsPixel = TRUE;

+    pWin->border.pixel = pScreen->blackPixel;

+    pWin->borderWidth = 0;

+

+    /*  security creation/labeling check

+     */

+    if (XaceHook(XACE_RESOURCE_ACCESS, serverClient, pWin->drawable.id,

+		 RT_WINDOW, pWin, RT_NONE, NULL, DixCreateAccess))

+	return FALSE;

+

+    if (!AddResource(pWin->drawable.id, RT_WINDOW, (pointer)pWin))

+	return FALSE;

+

+    if (disableBackingStore)

+	pScreen->backingStoreSupport = NotUseful;

+    if (enableBackingStore)

+	pScreen->backingStoreSupport = Always;

+

+    pScreen->saveUnderSupport = NotUseful;

+

+    return TRUE;

+}

+

+void

+InitRootWindow(WindowPtr pWin)

+{

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    int backFlag = CWBorderPixel | CWCursor | CWBackingStore;

+

+    if (!(*pScreen->CreateWindow)(pWin))

+	return; /* XXX */

+    (*pScreen->PositionWindow)(pWin, 0, 0);

+

+    pWin->cursorIsNone = FALSE;

+    pWin->optional->cursor = rootCursor;

+    rootCursor->refcnt++;

+

+

+    if (party_like_its_1989) {

+        MakeRootTile(pWin);

+        backFlag |= CWBackPixmap;

+    } else {

+	if (whiteRoot)

+            pWin->background.pixel = pScreen->whitePixel;

+        else

+            pWin->background.pixel = pScreen->blackPixel;

+        backFlag |= CWBackPixel;

+    } 

+

+    pWin->backingStore = defaultBackingStore;

+    pWin->forcedBS = (defaultBackingStore != NotUseful);

+    /* We SHOULD check for an error value here XXX */

+    (*pScreen->ChangeWindowAttributes)(pWin, backFlag);

+

+    MapWindow(pWin, serverClient);

+}

+

+/* Set the region to the intersection of the rectangle and the

+ * window's winSize.  The window is typically the parent of the

+ * window from which the region came.

+ */

+

+static void

+ClippedRegionFromBox(WindowPtr pWin, RegionPtr Rgn,

+                     int x, int y,

+                     int w, int h)

+{

+    ScreenPtr pScreen;

+    BoxRec box;

+

+    pScreen = pWin->drawable.pScreen;

+

+    box = *(REGION_EXTENTS(pScreen, &pWin->winSize));

+    /* we do these calculations to avoid overflows */

+    if (x > box.x1)

+	box.x1 = x;

+    if (y > box.y1)

+	box.y1 = y;

+    x += w;

+    if (x < box.x2)

+	box.x2 = x;

+    y += h;

+    if (y < box.y2)

+	box.y2 = y;

+    if (box.x1 > box.x2)

+	box.x2 = box.x1;

+    if (box.y1 > box.y2)

+	box.y2 = box.y1;

+    REGION_RESET(pScreen, Rgn, &box);

+    REGION_INTERSECT(pScreen, Rgn, Rgn, &pWin->winSize);

+}

+

+static RealChildHeadProc realChildHeadProc = NULL;

+

+void

+RegisterRealChildHeadProc (RealChildHeadProc proc)

+{

+    realChildHeadProc = proc;

+}

+

+

+WindowPtr

+RealChildHead(WindowPtr pWin)

+{

+    if (realChildHeadProc) {

+	return realChildHeadProc (pWin);

+    }

+

+    if (!pWin->parent &&

+	(screenIsSaved == SCREEN_SAVER_ON) &&

+	(HasSaverWindow (pWin->drawable.pScreen->myNum)))

+	return (pWin->firstChild);

+    else

+	return (NullWindow);

+}

+

+/*****

+ * CreateWindow

+ *    Makes a window in response to client request 

+ *****/

+

+WindowPtr

+CreateWindow(Window wid, WindowPtr pParent, int x, int y, unsigned w,

+             unsigned h, unsigned bw, unsigned class, Mask vmask, XID *vlist,

+             int depth, ClientPtr client, VisualID visual, int *error)

+{

+    WindowPtr pWin;

+    WindowPtr pHead;

+    ScreenPtr pScreen;

+    xEvent event;

+    int idepth, ivisual;

+    Bool fOK;

+    DepthPtr pDepth;

+    PixmapFormatRec *format;

+    WindowOptPtr ancwopt;

+

+    if (class == CopyFromParent)

+	class = pParent->drawable.class;

+

+    if ((class != InputOutput) && (class != InputOnly))

+    {

+	*error = BadValue;

+	client->errorValue = class;

+	return NullWindow;

+    }

+

+    if ((class != InputOnly) && (pParent->drawable.class == InputOnly))

+    {

+	*error = BadMatch;

+	return NullWindow;

+    }

+

+    if ((class == InputOnly) && ((bw != 0) || (depth != 0)))

+    {

+	*error = BadMatch;

+	return NullWindow;

+    }

+

+    pScreen = pParent->drawable.pScreen;

+    if ((class == InputOutput) && (depth == 0))

+	 depth = pParent->drawable.depth;

+    ancwopt = pParent->optional;

+    if (!ancwopt)

+	ancwopt = FindWindowWithOptional(pParent)->optional;

+    if (visual == CopyFromParent) {

+	visual = ancwopt->visual;

+    }

+

+    /* Find out if the depth and visual are acceptable for this Screen */

+    if ((visual != ancwopt->visual) || (depth != pParent->drawable.depth))

+    {

+	fOK = FALSE;

+	for(idepth = 0; idepth < pScreen->numDepths; idepth++)

+	{

+	    pDepth = (DepthPtr) &pScreen->allowedDepths[idepth];

+	    if ((depth == pDepth->depth) || (depth == 0))

+	    {

+		for (ivisual = 0; ivisual < pDepth->numVids; ivisual++)

+		{

+		    if (visual == pDepth->vids[ivisual])

+		    {

+			fOK = TRUE;

+			break;

+		    }

+		}

+	    }

+	}

+	if (fOK == FALSE)

+	{

+	    *error = BadMatch;

+	    return NullWindow;

+	}

+    }

+

+    if (((vmask & (CWBorderPixmap | CWBorderPixel)) == 0) &&

+	(class != InputOnly) &&

+	(depth != pParent->drawable.depth))

+    {

+	*error = BadMatch;

+	return NullWindow;

+    }

+

+    if (((vmask & CWColormap) == 0) &&

+	(class != InputOnly) &&

+	((visual != ancwopt->visual) || (ancwopt->colormap == None)))

+    {

+	*error = BadMatch;

+	return NullWindow;

+    }

+

+    pWin = xalloc(sizeof(WindowRec));

+    if (!pWin)

+    {

+	*error = BadAlloc;

+	return NullWindow;

+    }

+    pWin->drawable = pParent->drawable;

+    pWin->devPrivates = NULL;

+    pWin->drawable.depth = depth;

+    if (depth == pParent->drawable.depth)

+	pWin->drawable.bitsPerPixel = pParent->drawable.bitsPerPixel;

+    else

+    {

+	for (format = screenInfo.formats; format->depth != depth; format++)

+	    ;

+	pWin->drawable.bitsPerPixel = format->bitsPerPixel;

+    }

+    if (class == InputOnly)

+	pWin->drawable.type = (short) UNDRAWABLE_WINDOW;

+    pWin->drawable.serialNumber = NEXT_SERIAL_NUMBER;

+

+    pWin->drawable.id = wid;

+    pWin->drawable.class = class;

+

+    pWin->parent = pParent;

+    SetWindowToDefaults(pWin);

+

+    if (visual != ancwopt->visual)

+    {

+	if (!MakeWindowOptional (pWin))

+	{

+	    xfree (pWin);

+	    *error = BadAlloc;

+	    return NullWindow;

+	}

+	pWin->optional->visual = visual;

+	pWin->optional->colormap = None;

+    }

+

+    pWin->borderWidth = bw;

+

+    /*  security creation/labeling check

+     */

+    *error = XaceHook(XACE_RESOURCE_ACCESS, client, wid, RT_WINDOW, pWin,

+		RT_WINDOW, pWin->parent, DixCreateAccess|DixSetAttrAccess);

+    if (*error != Success) {

+	xfree(pWin);

+	return NullWindow;

+    }

+

+    pWin->backgroundState = XaceBackgroundNoneState(pWin);

+    pWin->background.pixel = pScreen->whitePixel;

+

+    pWin->borderIsPixel = pParent->borderIsPixel;

+    pWin->border = pParent->border;

+    if (pWin->borderIsPixel == FALSE)

+	pWin->border.pixmap->refcnt++;

+		

+    pWin->origin.x = x + (int)bw;

+    pWin->origin.y = y + (int)bw;

+    pWin->drawable.width = w;

+    pWin->drawable.height = h;

+    pWin->drawable.x = pParent->drawable.x + x + (int)bw;

+    pWin->drawable.y = pParent->drawable.y + y + (int)bw;

+

+	/* set up clip list correctly for unobscured WindowPtr */

+    REGION_NULL(pScreen, &pWin->clipList);

+    REGION_NULL(pScreen, &pWin->borderClip);

+    REGION_NULL(pScreen, &pWin->winSize);

+    REGION_NULL(pScreen, &pWin->borderSize);

+

+    pHead = RealChildHead(pParent);

+    if (pHead)

+    {

+	pWin->nextSib = pHead->nextSib;

+	if (pHead->nextSib)

+	    pHead->nextSib->prevSib = pWin;

+	else

+	    pParent->lastChild = pWin;

+	pHead->nextSib = pWin;

+	pWin->prevSib = pHead;

+    }

+    else

+    {

+	pWin->nextSib = pParent->firstChild;

+	if (pParent->firstChild)

+	    pParent->firstChild->prevSib = pWin;

+	else

+	    pParent->lastChild = pWin;

+	pParent->firstChild = pWin;

+    }

+

+    SetWinSize (pWin);

+    SetBorderSize (pWin);

+

+    /* We SHOULD check for an error value here XXX */

+    if (!(*pScreen->CreateWindow)(pWin))

+    {

+	*error = BadAlloc;

+	DeleteWindow(pWin, None);

+	return NullWindow;

+    }

+    /* We SHOULD check for an error value here XXX */

+    (*pScreen->PositionWindow)(pWin, pWin->drawable.x, pWin->drawable.y);

+

+    if (!(vmask & CWEventMask))

+	RecalculateDeliverableEvents(pWin);

+

+    if (vmask)

+	*error = ChangeWindowAttributes(pWin, vmask, vlist, wClient (pWin));

+    else

+	*error = Success;

+

+    if (*error != Success)

+    {

+	DeleteWindow(pWin, None);

+	return NullWindow;

+    }

+    if (!(vmask & CWBackingStore) && (defaultBackingStore != NotUseful))

+    {

+	XID value = defaultBackingStore;

+	(void)ChangeWindowAttributes(pWin, CWBackingStore, &value, wClient (pWin));

+	pWin->forcedBS = TRUE;

+    }

+

+    if (SubSend(pParent))

+    {

+	memset(&event, 0, sizeof(xEvent));

+	event.u.u.type = CreateNotify;

+	event.u.createNotify.window = wid;

+	event.u.createNotify.parent = pParent->drawable.id;

+	event.u.createNotify.x = x;

+	event.u.createNotify.y = y;

+	event.u.createNotify.width = w;

+	event.u.createNotify.height = h;

+	event.u.createNotify.borderWidth = bw;

+	event.u.createNotify.override = pWin->overrideRedirect;

+	DeliverEvents(pParent, &event, 1, NullWindow);		

+    }

+    return pWin;

+}

+

+static void

+DisposeWindowOptional (WindowPtr pWin)

+{

+    if (!pWin->optional)

+	return;

+    /*

+     * everything is peachy.  Delete the optional record

+     * and clean up

+     */

+    if (pWin->optional->cursor)

+    {

+	FreeCursor (pWin->optional->cursor, (Cursor)0);

+	pWin->cursorIsNone = FALSE;

+    }

+    else

+	pWin->cursorIsNone = TRUE;

+

+    if (pWin->optional->deviceCursors)

+    {

+        DevCursorList pList;

+        DevCursorList pPrev;

+        pList = pWin->optional->deviceCursors;

+        while(pList)

+        {

+            if (pList->cursor)

+                FreeCursor(pList->cursor, (XID)0);

+            pPrev = pList;

+            pList = pList->next;

+            xfree(pPrev);

+        }

+        pWin->optional->deviceCursors = NULL;

+    }

+

+    xfree (pWin->optional);

+    pWin->optional = NULL;

+}

+

+static void

+FreeWindowResources(WindowPtr pWin)

+{

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+

+    DeleteWindowFromAnySaveSet(pWin);

+    DeleteWindowFromAnySelections(pWin);

+    DeleteWindowFromAnyEvents(pWin, TRUE);

+    REGION_UNINIT(pScreen, &pWin->clipList);

+    REGION_UNINIT(pScreen, &pWin->winSize);

+    REGION_UNINIT(pScreen, &pWin->borderClip);

+    REGION_UNINIT(pScreen, &pWin->borderSize);

+    if (wBoundingShape (pWin))

+	REGION_DESTROY(pScreen, wBoundingShape (pWin));

+    if (wClipShape (pWin))

+	REGION_DESTROY(pScreen, wClipShape (pWin));

+    if (wInputShape (pWin))

+	REGION_DESTROY(pScreen, wInputShape (pWin));

+    if (pWin->borderIsPixel == FALSE)

+	(*pScreen->DestroyPixmap)(pWin->border.pixmap);

+    if (pWin->backgroundState == BackgroundPixmap)

+	(*pScreen->DestroyPixmap)(pWin->background.pixmap);

+

+    DeleteAllWindowProperties(pWin);

+    /* We SHOULD check for an error value here XXX */

+    (*pScreen->DestroyWindow)(pWin);

+    DisposeWindowOptional (pWin);

+}

+

+static void

+CrushTree(WindowPtr pWin)

+{

+    WindowPtr pChild, pSib, pParent;

+    UnrealizeWindowProcPtr UnrealizeWindow;

+    xEvent event;

+

+    if (!(pChild = pWin->firstChild))

+	return;

+    UnrealizeWindow = pWin->drawable.pScreen->UnrealizeWindow;

+    while (1)

+    {

+	if (pChild->firstChild)

+	{

+	    pChild = pChild->firstChild;

+	    continue;

+	}

+	while (1)

+	{

+	    pParent = pChild->parent;

+	    if (SubStrSend(pChild, pParent))

+	    {

+		memset(&event, 0, sizeof(xEvent));

+		event.u.u.type = DestroyNotify;

+		event.u.destroyNotify.window = pChild->drawable.id;

+		DeliverEvents(pChild, &event, 1, NullWindow);

+	    }

+	    FreeResource(pChild->drawable.id, RT_WINDOW);

+	    pSib = pChild->nextSib;

+	    pChild->viewable = FALSE;

+	    if (pChild->realized)

+	    {

+		pChild->realized = FALSE;

+		(*UnrealizeWindow)(pChild);

+	    }

+	    FreeWindowResources(pChild);

+	    dixFreePrivates(pChild->devPrivates);

+	    xfree(pChild);

+	    if ( (pChild = pSib) )

+		break;

+	    pChild = pParent;

+	    pChild->firstChild = NullWindow;

+	    pChild->lastChild = NullWindow;

+	    if (pChild == pWin)

+		return;

+	}

+    }

+}

+	

+/*****

+ *  DeleteWindow

+ *	 Deletes child of window then window itself

+ *	 If wid is None, don't send any events

+ *****/

+

+int

+DeleteWindow(pointer value, XID wid)

+ {

+    WindowPtr pParent;

+    WindowPtr pWin = (WindowPtr)value;

+    xEvent event;

+

+    UnmapWindow(pWin, FALSE);

+

+    CrushTree(pWin);

+

+    pParent = pWin->parent;

+    if (wid && pParent && SubStrSend(pWin, pParent))

+    {

+	memset(&event, 0, sizeof(xEvent));

+	event.u.u.type = DestroyNotify;

+	event.u.destroyNotify.window = pWin->drawable.id;

+	DeliverEvents(pWin, &event, 1, NullWindow);

+    }

+

+    FreeWindowResources(pWin);

+    if (pParent)

+    {

+	if (pParent->firstChild == pWin)

+	    pParent->firstChild = pWin->nextSib;

+	if (pParent->lastChild == pWin)

+	    pParent->lastChild = pWin->prevSib;

+	if (pWin->nextSib)

+	    pWin->nextSib->prevSib = pWin->prevSib;

+	if (pWin->prevSib)

+	    pWin->prevSib->nextSib = pWin->nextSib;

+    }

+    xfree(dixLookupPrivate(&pWin->devPrivates, FocusPrivatesKey));

+    dixFreePrivates(pWin->devPrivates);

+    xfree(pWin);

+    return Success;

+}

+

+int

+DestroySubwindows(WindowPtr pWin, ClientPtr client)

+{

+    /* XXX

+     * The protocol is quite clear that each window should be

+     * destroyed in turn, however, unmapping all of the first

+     * eliminates most of the calls to ValidateTree.  So,

+     * this implementation is incorrect in that all of the

+     * UnmapNotifies occur before all of the DestroyNotifies.

+     * If you care, simply delete the call to UnmapSubwindows.

+     */

+    UnmapSubwindows(pWin);

+    while (pWin->lastChild) {

+	int rc = XaceHook(XACE_RESOURCE_ACCESS, client,

+			  pWin->lastChild->drawable.id, RT_WINDOW,

+			  pWin->lastChild, RT_NONE, NULL, DixDestroyAccess);

+	if (rc != Success)

+	    return rc;

+	FreeResource(pWin->lastChild->drawable.id, RT_NONE);

+    }

+    return Success;

+}

+

+/*****

+ *  ChangeWindowAttributes

+ *   

+ *  The value-mask specifies which attributes are to be changed; the

+ *  value-list contains one value for each one bit in the mask, from least

+ *  to most significant bit in the mask.  

+ *****/

+ 

+int

+ChangeWindowAttributes(WindowPtr pWin, Mask vmask, XID *vlist, ClientPtr client)

+{

+    XID *pVlist;

+    PixmapPtr pPixmap;

+    Pixmap pixID;

+    CursorPtr pCursor, pOldCursor;

+    Cursor cursorID;

+    WindowPtr pChild;

+    Colormap cmap;

+    ColormapPtr	pCmap;

+    xEvent xE;

+    int error, rc;

+    ScreenPtr pScreen;

+    Mask index2, tmask, vmaskCopy = 0;

+    unsigned int val;

+    Bool checkOptional = FALSE, borderRelative = FALSE;

+

+    if ((pWin->drawable.class == InputOnly) && (vmask & (~INPUTONLY_LEGAL_MASK)))

+	return BadMatch;

+

+    error = Success;

+    pScreen = pWin->drawable.pScreen;

+    pVlist = vlist;

+    tmask = vmask;

+    while (tmask)

+    {

+	index2 = (Mask) lowbit (tmask);

+	tmask &= ~index2;

+	switch (index2)

+	{

+	  case CWBackPixmap:

+	    pixID = (Pixmap )*pVlist;

+	    pVlist++;

+	    if (pWin->backgroundState == ParentRelative)

+		borderRelative = TRUE;

+	    if (pixID == None)

+	    {

+		if (pWin->backgroundState == BackgroundPixmap)

+		    (*pScreen->DestroyPixmap)(pWin->background.pixmap);

+		if (!pWin->parent)

+		    MakeRootTile(pWin);

+		else {

+		    pWin->backgroundState = XaceBackgroundNoneState(pWin);

+		    pWin->background.pixel = pScreen->whitePixel;

+		}

+	    }

+	    else if (pixID == ParentRelative)

+	    {

+		if (pWin->parent &&

+		    pWin->drawable.depth != pWin->parent->drawable.depth)

+		{

+		    error = BadMatch;

+		    goto PatchUp;

+		}

+		if (pWin->backgroundState == BackgroundPixmap)

+		    (*pScreen->DestroyPixmap)(pWin->background.pixmap);

+		if (!pWin->parent)

+		    MakeRootTile(pWin);

+		else

+		    pWin->backgroundState = ParentRelative;

+		borderRelative = TRUE;

+		/* Note that the parent's backgroundTile's refcnt is NOT

+		 * incremented. */

+	    }

+	    else

+	    {	

+		rc = dixLookupResourceByType((pointer *)&pPixmap, pixID, RT_PIXMAP,

+				       client, DixReadAccess);

+		if (rc == Success)

+		{

+		    if	((pPixmap->drawable.depth != pWin->drawable.depth) ||

+			 (pPixmap->drawable.pScreen != pScreen))

+		    {

+			error = BadMatch;

+			goto PatchUp;

+		    }

+		    if (pWin->backgroundState == BackgroundPixmap)

+			(*pScreen->DestroyPixmap)(pWin->background.pixmap);

+		    pWin->backgroundState = BackgroundPixmap;

+		    pWin->background.pixmap = pPixmap;

+		    pPixmap->refcnt++;

+		}

+		else

+		{

+		    error = (rc == BadValue) ? BadPixmap : rc;

+		    client->errorValue = pixID;

+		    goto PatchUp;

+		}

+	    }

+	    break;

+	  case CWBackPixel:

+	    if (pWin->backgroundState == ParentRelative)

+		borderRelative = TRUE;

+	    if (pWin->backgroundState == BackgroundPixmap)

+		(*pScreen->DestroyPixmap)(pWin->background.pixmap);

+	    pWin->backgroundState = BackgroundPixel;

+	    pWin->background.pixel = (CARD32 ) *pVlist;

+		   /* background pixel overrides background pixmap,

+		      so don't let the ddx layer see both bits */

+	    vmaskCopy &= ~CWBackPixmap;

+	    pVlist++;

+	    break;

+	  case CWBorderPixmap:

+	    pixID = (Pixmap ) *pVlist;

+	    pVlist++;

+	    if (pixID == CopyFromParent)

+	    {

+		if (!pWin->parent ||

+		    (pWin->drawable.depth != pWin->parent->drawable.depth))

+		{

+		    error = BadMatch;

+		    goto PatchUp;

+		}

+		if (pWin->parent->borderIsPixel == TRUE) {

+		    if (pWin->borderIsPixel == FALSE)

+			(*pScreen->DestroyPixmap)(pWin->border.pixmap);

+		    pWin->border = pWin->parent->border;

+		    pWin->borderIsPixel = TRUE;

+		    index2 = CWBorderPixel;

+		    break;

+		}

+		else

+		{

+		    pixID = pWin->parent->border.pixmap->drawable.id;

+		}

+	    }

+	    rc = dixLookupResourceByType((pointer *)&pPixmap, pixID, RT_PIXMAP,

+				   client, DixReadAccess);

+	    if (rc == Success)

+	    {

+		if ((pPixmap->drawable.depth != pWin->drawable.depth) ||

+		    (pPixmap->drawable.pScreen != pScreen))

+		{

+		    error = BadMatch;

+		    goto PatchUp;

+		}

+		if (pWin->borderIsPixel == FALSE)

+		    (*pScreen->DestroyPixmap)(pWin->border.pixmap);

+		pWin->borderIsPixel = FALSE;

+		pWin->border.pixmap = pPixmap;

+		pPixmap->refcnt++;

+	    }

+	    else

+	    {

+		error = (rc == BadValue) ? BadPixmap : rc;

+		client->errorValue = pixID;

+		goto PatchUp;

+	    }

+	    break;

+	  case CWBorderPixel:

+	    if (pWin->borderIsPixel == FALSE)

+		(*pScreen->DestroyPixmap)(pWin->border.pixmap);

+	    pWin->borderIsPixel = TRUE;

+	    pWin->border.pixel = (CARD32) *pVlist;

+		    /* border pixel overrides border pixmap,

+		       so don't let the ddx layer see both bits */

+	    vmaskCopy &= ~CWBorderPixmap;

+	    pVlist++;

+	    break;

+	  case CWBitGravity:

+	    val = (CARD8 )*pVlist;

+	    pVlist++;

+	    if (val > StaticGravity)

+	    {

+		error = BadValue;

+		client->errorValue = val;

+		goto PatchUp;

+	    }

+	    pWin->bitGravity = val;

+	    break;

+	  case CWWinGravity:

+	    val = (CARD8 )*pVlist;

+	    pVlist++;

+	    if (val > StaticGravity)

+	    {

+		error = BadValue;

+		client->errorValue = val;

+		goto PatchUp;

+	    }

+	    pWin->winGravity = val;

+	    break;

+	  case CWBackingStore:

+	    val = (CARD8 )*pVlist;

+	    pVlist++;

+	    if ((val != NotUseful) && (val != WhenMapped) && (val != Always))

+	    {

+		error = BadValue;

+		client->errorValue = val;

+		goto PatchUp;

+	    }

+	    pWin->backingStore = val;

+	    pWin->forcedBS = FALSE;

+	    break;

+	  case CWBackingPlanes:

+	    if (pWin->optional || ((CARD32)*pVlist != (CARD32)~0L)) {

+		if (!pWin->optional && !MakeWindowOptional (pWin))

+		{

+		    error = BadAlloc;

+		    goto PatchUp;

+		}

+		pWin->optional->backingBitPlanes = (CARD32) *pVlist;

+		if ((CARD32)*pVlist == (CARD32)~0L)

+		    checkOptional = TRUE;

+	    }

+	    pVlist++;

+	    break;

+	  case CWBackingPixel:

+	    if (pWin->optional || (CARD32) *pVlist) {

+		if (!pWin->optional && !MakeWindowOptional (pWin))

+		{

+		    error = BadAlloc;

+		    goto PatchUp;

+		}

+		pWin->optional->backingPixel = (CARD32) *pVlist;

+		if (!*pVlist)

+		    checkOptional = TRUE;

+	    }

+	    pVlist++;

+	    break;

+	  case CWSaveUnder:

+	    val = (BOOL) *pVlist;

+	    pVlist++;

+	    if ((val != xTrue) && (val != xFalse))

+	    {

+		error = BadValue;

+		client->errorValue = val;

+		goto PatchUp;

+	    }

+	    pWin->saveUnder = val;

+	    break;

+	  case CWEventMask:

+	    rc = EventSelectForWindow(pWin, client, (Mask )*pVlist);

+	    if (rc)

+	    {

+		error = rc;

+		goto PatchUp;

+	    }

+	    pVlist++;

+	    break;

+	  case CWDontPropagate:

+	    rc = EventSuppressForWindow(pWin, client, (Mask )*pVlist,

+					    &checkOptional);

+	    if (rc)

+	    {

+		error = rc;

+		goto PatchUp;

+	    }

+	    pVlist++;

+	    break;

+	  case CWOverrideRedirect:

+	    val = (BOOL ) *pVlist;

+	    pVlist++;

+	    if ((val != xTrue) && (val != xFalse))

+	    {

+		error = BadValue;

+		client->errorValue = val;

+		goto PatchUp;

+	    }

+	    if (val == xTrue) {

+		rc = XaceHook(XACE_RESOURCE_ACCESS, client, pWin->drawable.id,

+			      RT_WINDOW, pWin, RT_NONE, NULL, DixGrabAccess);

+		if (rc != Success) {

+		    error = rc;

+		    client->errorValue = pWin->drawable.id;

+		    goto PatchUp;

+		}

+	    }

+	    pWin->overrideRedirect = val;

+	    break;

+	  case CWColormap:

+	    cmap = (Colormap) *pVlist;

+	    pVlist++;

+	    if (cmap == CopyFromParent)

+	    {

+		if (pWin->parent &&

+		    (!pWin->optional ||

+		     pWin->optional->visual == wVisual (pWin->parent)))

+		{

+		    cmap = wColormap (pWin->parent);

+		}

+		else

+		    cmap = None;

+	    }

+	    if (cmap == None)

+	    {

+		error = BadMatch;

+		goto PatchUp;

+	    }

+	    rc = dixLookupResourceByType((pointer *)&pCmap, cmap, RT_COLORMAP,

+				   client, DixUseAccess);

+	    if (rc != Success)

+	    {

+		error = (rc == BadValue) ? BadColor : rc;

+		client->errorValue = cmap;

+		goto PatchUp;

+	    }

+	    if (pCmap->pVisual->vid != wVisual (pWin) ||

+		pCmap->pScreen != pScreen)

+	    {

+		error = BadMatch;

+		goto PatchUp;

+	    }

+	    if (cmap != wColormap (pWin))

+	    {

+		if (!pWin->optional)

+		{

+		    if (!MakeWindowOptional (pWin))

+		    {

+			error = BadAlloc;

+			goto PatchUp;

+		    }

+		}

+		else if (pWin->parent && cmap == wColormap (pWin->parent))

+		    checkOptional = TRUE;

+

+		/*

+		 * propagate the original colormap to any children

+		 * inheriting it

+		 */

+

+		for (pChild = pWin->firstChild; pChild; pChild=pChild->nextSib)

+		{

+		    if (!pChild->optional && !MakeWindowOptional (pChild))

+		    {

+			error = BadAlloc;

+			goto PatchUp;

+		    }

+		}

+

+		pWin->optional->colormap = cmap;

+

+		/*

+		 * check on any children now matching the new colormap

+		 */

+

+		for (pChild = pWin->firstChild; pChild; pChild=pChild->nextSib)

+		{

+		    if (pChild->optional->colormap == cmap)

+			CheckWindowOptionalNeed (pChild);

+		}

+	

+		xE.u.u.type = ColormapNotify;

+		xE.u.colormap.window = pWin->drawable.id;

+		xE.u.colormap.colormap = cmap;

+		xE.u.colormap.new = xTrue;

+		xE.u.colormap.state = IsMapInstalled(cmap, pWin);

+		DeliverEvents(pWin, &xE, 1, NullWindow);

+	    }

+	    break;

+	  case CWCursor:

+	    cursorID = (Cursor ) *pVlist;

+	    pVlist++;

+	    /*

+	     * install the new

+	     */

+	    if ( cursorID == None)

+	    {

+		if (pWin == WindowTable[pWin->drawable.pScreen->myNum])

+		    pCursor = rootCursor;

+		else

+		    pCursor = (CursorPtr) None;

+	    }

+	    else

+	    {

+		rc = dixLookupResourceByType((pointer *)&pCursor, cursorID,

+				       RT_CURSOR, client, DixUseAccess);

+		if (rc != Success)

+		{

+		    error = (rc == BadValue) ? BadCursor : rc;

+		    client->errorValue = cursorID;

+		    goto PatchUp;

+		}

+	    }

+

+	    if (pCursor != wCursor (pWin))

+	    {

+		/*

+		 * patch up child windows so they don't lose cursors.

+		 */

+

+		for (pChild = pWin->firstChild; pChild; pChild=pChild->nextSib)

+		{

+		    if (!pChild->optional && !pChild->cursorIsNone &&

+			!MakeWindowOptional (pChild))

+		    {

+			error = BadAlloc;

+			goto PatchUp;

+		    }

+		}

+

+		pOldCursor = 0;

+		if (pCursor == (CursorPtr) None)

+		{

+		    pWin->cursorIsNone = TRUE;

+		    if (pWin->optional)

+		    {

+			pOldCursor = pWin->optional->cursor;

+			pWin->optional->cursor = (CursorPtr) None;

+			checkOptional = TRUE;

+		    }

+		} else {

+		    if (!pWin->optional)

+		    {

+			if (!MakeWindowOptional (pWin))

+			{

+			    error = BadAlloc;

+			    goto PatchUp;

+			}

+		    }

+		    else if (pWin->parent && pCursor == wCursor (pWin->parent))

+			checkOptional = TRUE;

+		    pOldCursor = pWin->optional->cursor;

+		    pWin->optional->cursor = pCursor;

+		    pCursor->refcnt++;

+		    pWin->cursorIsNone = FALSE;

+		    /*

+		     * check on any children now matching the new cursor

+		     */

+

+		    for (pChild=pWin->firstChild; pChild; pChild=pChild->nextSib)

+		    {

+			if (pChild->optional &&

+			    (pChild->optional->cursor == pCursor))

+			    CheckWindowOptionalNeed (pChild);

+		    }

+		}

+

+		if (pWin->realized)

+		    WindowHasNewCursor( pWin);

+

+		/* Can't free cursor until here - old cursor

+		 * is needed in WindowHasNewCursor

+		 */

+		if (pOldCursor)

+		    FreeCursor (pOldCursor, (Cursor)0);

+	    }

+	    break;

+	 default:

+	    error = BadValue;

+	    client->errorValue = vmask;

+	    goto PatchUp;

+      }

+      vmaskCopy |= index2;

+    }

+PatchUp:

+    if (checkOptional)

+	CheckWindowOptionalNeed (pWin);

+

+	/* We SHOULD check for an error value here XXX */

+    (*pScreen->ChangeWindowAttributes)(pWin, vmaskCopy);

+

+    /* 

+	If the border contents have changed, redraw the border. 

+	Note that this has to be done AFTER pScreen->ChangeWindowAttributes

+	for the tile to be rotated, and the correct function selected.

+    */

+    if (((vmaskCopy & (CWBorderPixel | CWBorderPixmap)) || borderRelative)

+	&& pWin->viewable && HasBorder (pWin))

+    {

+	RegionRec exposed;

+

+	REGION_NULL(pScreen, &exposed);

+	REGION_SUBTRACT(pScreen, &exposed, &pWin->borderClip, &pWin->winSize);

+	miPaintWindow(pWin, &exposed, PW_BORDER);

+	REGION_UNINIT(pScreen, &exposed);

+    }

+    return error;

+}

+

+

+/*****

+ * GetWindowAttributes

+ *    Notice that this is different than ChangeWindowAttributes

+ *****/

+

+void

+GetWindowAttributes(WindowPtr pWin, ClientPtr client, xGetWindowAttributesReply *wa)

+{

+    wa->type = X_Reply;

+    wa->bitGravity = pWin->bitGravity;

+    wa->winGravity = pWin->winGravity;

+    if (pWin->forcedBS && pWin->backingStore != Always)

+	wa->backingStore = NotUseful;

+    else

+	wa->backingStore = pWin->backingStore;

+    wa->length = bytes_to_int32(sizeof(xGetWindowAttributesReply) -

+		 sizeof(xGenericReply));

+    wa->sequenceNumber = client->sequence;

+    wa->backingBitPlanes =  wBackingBitPlanes (pWin);

+    wa->backingPixel =  wBackingPixel (pWin);

+    wa->saveUnder = (BOOL)pWin->saveUnder;

+    wa->override = pWin->overrideRedirect;

+    if (!pWin->mapped)

+	wa->mapState = IsUnmapped;

+    else if (pWin->realized)

+	wa->mapState = IsViewable;

+    else

+	wa->mapState = IsUnviewable;

+

+    wa->colormap =  wColormap (pWin);

+    wa->mapInstalled = (wa->colormap == None) ? xFalse

+				: IsMapInstalled(wa->colormap, pWin);

+

+    wa->yourEventMask = EventMaskForClient(pWin, client);

+    wa->allEventMasks = pWin->eventMask | wOtherEventMasks (pWin);

+    wa->doNotPropagateMask = wDontPropagateMask (pWin);

+    wa->class = pWin->drawable.class;

+    wa->visualID = wVisual (pWin);

+}

+

+

+WindowPtr

+MoveWindowInStack(WindowPtr pWin, WindowPtr pNextSib)

+{

+    WindowPtr pParent = pWin->parent;

+    WindowPtr pFirstChange = pWin; /* highest window where list changes */

+

+    if (pWin->nextSib != pNextSib)

+    {

+	WindowPtr pOldNextSib = pWin->nextSib;

+

+	if (!pNextSib)	      /* move to bottom */

+	{

+	    if (pParent->firstChild == pWin)

+		pParent->firstChild = pWin->nextSib;

+	    /* if (pWin->nextSib) */	 /* is always True: pNextSib == NULL

+					  * and pWin->nextSib != pNextSib

+					  * therefore pWin->nextSib != NULL */

+	    pFirstChange = pWin->nextSib;

+	    pWin->nextSib->prevSib = pWin->prevSib;

+	    if (pWin->prevSib)

+		pWin->prevSib->nextSib = pWin->nextSib;

+	    pParent->lastChild->nextSib = pWin;

+	    pWin->prevSib = pParent->lastChild;

+	    pWin->nextSib = NullWindow;

+	    pParent->lastChild = pWin;

+	}

+	else if (pParent->firstChild == pNextSib) /* move to top */

+	{

+	    pFirstChange = pWin;

+	    if (pParent->lastChild == pWin)

+	       pParent->lastChild = pWin->prevSib;

+	    if (pWin->nextSib)

+		pWin->nextSib->prevSib = pWin->prevSib;

+	    if (pWin->prevSib)

+		pWin->prevSib->nextSib = pWin->nextSib;

+	    pWin->nextSib = pParent->firstChild;

+	    pWin->prevSib = (WindowPtr ) NULL;

+	    pNextSib->prevSib = pWin;

+	    pParent->firstChild = pWin;

+	}

+	else			/* move in middle of list */

+	{

+	    WindowPtr pOldNext = pWin->nextSib;

+

+	    pFirstChange = NullWindow;

+	    if (pParent->firstChild == pWin)

+		pFirstChange = pParent->firstChild = pWin->nextSib;

+	    if (pParent->lastChild == pWin) {

+	       pFirstChange = pWin;

+	       pParent->lastChild = pWin->prevSib;

+	    }

+	    if (pWin->nextSib)

+		pWin->nextSib->prevSib = pWin->prevSib;

+	    if (pWin->prevSib)

+		pWin->prevSib->nextSib = pWin->nextSib;

+	    pWin->nextSib = pNextSib;

+	    pWin->prevSib = pNextSib->prevSib;

+	    if (pNextSib->prevSib)

+		pNextSib->prevSib->nextSib = pWin;

+	    pNextSib->prevSib = pWin;

+	    if (!pFirstChange) {		     /* do we know it yet? */

+		pFirstChange = pParent->firstChild;  /* no, search from top */

+		while ((pFirstChange != pWin) && (pFirstChange != pOldNext))

+		     pFirstChange = pFirstChange->nextSib;

+	    }

+	}

+	if(pWin->drawable.pScreen->RestackWindow)

+	    (*pWin->drawable.pScreen->RestackWindow)(pWin, pOldNextSib);

+    }

+

+#ifdef ROOTLESS

+    /*

+     * In rootless mode we can't optimize away window restacks.

+     * There may be non-X windows around, so even if the window

+     * is in the correct position from X's point of view,

+     * the underlying window system may want to reorder it.

+     */

+    else if (pWin->drawable.pScreen->RestackWindow)

+        (*pWin->drawable.pScreen->RestackWindow)(pWin, pWin->nextSib);

+#endif

+

+    return( pFirstChange );

+}

+

+void

+SetWinSize (WindowPtr pWin)

+{

+#ifdef COMPOSITE

+    if (pWin->redirectDraw != RedirectDrawNone)

+    {

+	BoxRec	box;

+

+	/*

+	 * Redirected clients get clip list equal to their

+	 * own geometry, not clipped to their parent

+	 */

+	box.x1 = pWin->drawable.x;

+	box.y1 = pWin->drawable.y;

+	box.x2 = pWin->drawable.x + pWin->drawable.width;

+	box.y2 = pWin->drawable.y + pWin->drawable.height;

+	REGION_RESET (pScreen, &pWin->winSize, &box);

+    }

+    else

+#endif

+    ClippedRegionFromBox(pWin->parent, &pWin->winSize,

+			 pWin->drawable.x, pWin->drawable.y,

+			 (int)pWin->drawable.width,

+			 (int)pWin->drawable.height);

+    if (wBoundingShape (pWin) || wClipShape (pWin)) {

+	ScreenPtr pScreen;

+        pScreen = pWin->drawable.pScreen;

+

+	REGION_TRANSLATE(pScreen, &pWin->winSize, - pWin->drawable.x,

+			 - pWin->drawable.y);

+	if (wBoundingShape (pWin))

+	    REGION_INTERSECT(pScreen, &pWin->winSize, &pWin->winSize,

+			     wBoundingShape (pWin));

+	if (wClipShape (pWin))

+	    REGION_INTERSECT(pScreen, &pWin->winSize, &pWin->winSize,

+			     wClipShape (pWin));

+	REGION_TRANSLATE(pScreen, &pWin->winSize, pWin->drawable.x,

+			 pWin->drawable.y);

+    }

+}

+

+void

+SetBorderSize (WindowPtr pWin)

+{

+    int	bw;

+

+    if (HasBorder (pWin)) {

+	bw = wBorderWidth (pWin);

+#ifdef COMPOSITE

+	if (pWin->redirectDraw != RedirectDrawNone)

+	{

+	    BoxRec	box;

+

+	    /*

+	     * Redirected clients get clip list equal to their

+	     * own geometry, not clipped to their parent

+	     */

+	    box.x1 = pWin->drawable.x - bw;

+	    box.y1 = pWin->drawable.y - bw;

+	    box.x2 = pWin->drawable.x + pWin->drawable.width + bw;

+	    box.y2 = pWin->drawable.y + pWin->drawable.height + bw;

+	    REGION_RESET (pScreen, &pWin->borderSize, &box);

+	}

+	else

+#endif

+	ClippedRegionFromBox(pWin->parent, &pWin->borderSize,

+		pWin->drawable.x - bw, pWin->drawable.y - bw,

+		(int)(pWin->drawable.width + (bw<<1)),

+		(int)(pWin->drawable.height + (bw<<1)));

+	if (wBoundingShape (pWin)) {

+	    ScreenPtr pScreen;

+            pScreen = pWin->drawable.pScreen;

+

+	    REGION_TRANSLATE(pScreen, &pWin->borderSize, - pWin->drawable.x,

+			     - pWin->drawable.y);

+	    REGION_INTERSECT(pScreen, &pWin->borderSize, &pWin->borderSize,

+			     wBoundingShape (pWin));

+	    REGION_TRANSLATE(pScreen, &pWin->borderSize, pWin->drawable.x,

+			     pWin->drawable.y);

+	    REGION_UNION(pScreen, &pWin->borderSize, &pWin->borderSize,

+			 &pWin->winSize);

+	}

+    } else {

+	REGION_COPY(pWin->drawable.pScreen, &pWin->borderSize,

+					       &pWin->winSize);

+    }

+}

+

+/**

+ *

+ *  \param x,y          new window position

+ *  \param oldx,oldy    old window position

+ *  \param destx,desty  position relative to gravity

+ */

+

+void

+GravityTranslate (int x, int y, int oldx, int oldy,

+                  int dw, int dh, unsigned gravity,

+                  int *destx, int *desty)

+{

+    switch (gravity) {

+    case NorthGravity:

+	*destx = x + dw / 2;

+	*desty = y;

+	break;

+    case NorthEastGravity:

+	*destx = x + dw;

+	*desty = y;

+	break;

+    case WestGravity:

+	*destx = x;

+	*desty = y + dh / 2;

+	break;

+    case CenterGravity:

+	*destx = x + dw / 2;

+	*desty = y + dh / 2;

+	break;

+    case EastGravity:

+	*destx = x + dw;

+	*desty = y + dh / 2;

+	break;

+    case SouthWestGravity:

+	*destx = x;

+	*desty = y + dh;

+	break;

+    case SouthGravity:

+	*destx = x + dw / 2;

+	*desty = y + dh;

+	break;

+    case SouthEastGravity:

+	*destx = x + dw;

+	*desty = y + dh;

+	break;

+    case StaticGravity:

+	*destx = oldx;

+	*desty = oldy;

+	break;

+    default:

+	*destx = x;

+	*desty = y;

+	break;

+    }

+}

+

+/* XXX need to retile border on each window with ParentRelative origin */

+void

+ResizeChildrenWinSize(WindowPtr pWin, int dx, int dy, int dw, int dh)

+{

+    ScreenPtr pScreen;

+    WindowPtr pSib, pChild;

+    Bool resized = (dw || dh);

+

+    pScreen = pWin->drawable.pScreen;

+

+    for (pSib = pWin->firstChild; pSib; pSib = pSib->nextSib)

+    {

+	if (resized && (pSib->winGravity > NorthWestGravity))

+	{

+	    int cwsx, cwsy;

+

+	    cwsx = pSib->origin.x;

+	    cwsy = pSib->origin.y;

+	    GravityTranslate (cwsx, cwsy, cwsx - dx, cwsy - dy, dw, dh,

+			pSib->winGravity, &cwsx, &cwsy);

+	    if (cwsx != pSib->origin.x || cwsy != pSib->origin.y)

+	    {

+		xEvent event;

+

+		event.u.u.type = GravityNotify;

+		event.u.gravity.window = pSib->drawable.id;

+		event.u.gravity.x = cwsx - wBorderWidth (pSib);

+		event.u.gravity.y = cwsy - wBorderWidth (pSib);

+		DeliverEvents (pSib, &event, 1, NullWindow);

+		pSib->origin.x = cwsx;

+		pSib->origin.y = cwsy;

+	    }

+	}

+	pSib->drawable.x = pWin->drawable.x + pSib->origin.x;

+	pSib->drawable.y = pWin->drawable.y + pSib->origin.y;

+	SetWinSize (pSib);

+	SetBorderSize (pSib);

+	(*pScreen->PositionWindow)(pSib, pSib->drawable.x, pSib->drawable.y);

+

+	if ( (pChild = pSib->firstChild) )

+	{

+	    while (1)

+	    {

+		pChild->drawable.x = pChild->parent->drawable.x +

+				     pChild->origin.x;

+		pChild->drawable.y = pChild->parent->drawable.y +

+				     pChild->origin.y;

+		SetWinSize (pChild);

+		SetBorderSize (pChild);

+		(*pScreen->PositionWindow)(pChild,

+				    pChild->drawable.x, pChild->drawable.y);

+		if (pChild->firstChild)

+		{

+		    pChild = pChild->firstChild;

+		    continue;

+		}

+		while (!pChild->nextSib && (pChild != pSib))

+		    pChild = pChild->parent;

+		if (pChild == pSib)

+		    break;

+		pChild = pChild->nextSib;

+	    }

+	}

+    }

+}

+

+#define GET_INT16(m, f) \

+	if (m & mask) \

+	  { \

+	     f = (INT16) *pVlist;\

+	    pVlist++; \

+	 }

+#define GET_CARD16(m, f) \

+	if (m & mask) \

+	 { \

+	    f = (CARD16) *pVlist;\

+	    pVlist++;\

+	 }

+

+#define GET_CARD8(m, f) \

+	if (m & mask) \

+	 { \

+	    f = (CARD8) *pVlist;\

+	    pVlist++;\

+	 }

+

+#define ChangeMask ((Mask)(CWX | CWY | CWWidth | CWHeight))

+

+#define IllegalInputOnlyConfigureMask (CWBorderWidth)

+

+/*

+ * IsSiblingAboveMe

+ *     returns Above if pSib above pMe in stack or Below otherwise 

+ */

+

+static int

+IsSiblingAboveMe(

+    WindowPtr pMe,

+    WindowPtr pSib)

+{

+    WindowPtr pWin;

+

+    pWin = pMe->parent->firstChild;

+    while (pWin)

+    {

+	if (pWin == pSib)

+	    return(Above);

+	else if (pWin == pMe)

+	    return(Below);

+	pWin = pWin->nextSib;

+    }

+    return(Below);

+}

+

+static BoxPtr

+WindowExtents(

+    WindowPtr pWin,

+    BoxPtr pBox)

+{

+    pBox->x1 = pWin->drawable.x - wBorderWidth (pWin);

+    pBox->y1 = pWin->drawable.y - wBorderWidth (pWin);

+    pBox->x2 = pWin->drawable.x + (int)pWin->drawable.width

+	       + wBorderWidth (pWin);

+    pBox->y2 = pWin->drawable.y + (int)pWin->drawable.height

+	       + wBorderWidth (pWin);

+    return(pBox);

+}

+

+#define IS_SHAPED(pWin)	(wBoundingShape (pWin) != (RegionPtr) NULL)

+

+static RegionPtr

+MakeBoundingRegion (

+    WindowPtr	pWin,

+    BoxPtr	pBox)

+{

+    RegionPtr	pRgn;

+    ScreenPtr   pScreen;

+    pScreen = pWin->drawable.pScreen;

+

+    pRgn = REGION_CREATE(pScreen, pBox, 1);

+    if (wBoundingShape (pWin)) {

+	    REGION_TRANSLATE(pScreen, pRgn, -pWin->origin.x,

+						  -pWin->origin.y);

+	    REGION_INTERSECT(pScreen, pRgn, pRgn, wBoundingShape (pWin));

+	    REGION_TRANSLATE(pScreen, pRgn, pWin->origin.x,

+						  pWin->origin.y);

+    }

+    return pRgn;

+}

+

+static Bool

+ShapeOverlap (

+    WindowPtr	pWin,

+    BoxPtr	pWinBox,

+    WindowPtr	pSib,

+    BoxPtr	pSibBox)

+{

+    RegionPtr	pWinRgn, pSibRgn;

+    ScreenPtr	pScreen;

+    Bool	ret;

+

+    if (!IS_SHAPED(pWin) && !IS_SHAPED(pSib))

+	return TRUE;

+    pScreen = pWin->drawable.pScreen;

+    pWinRgn = MakeBoundingRegion (pWin, pWinBox);

+    pSibRgn = MakeBoundingRegion (pSib, pSibBox);

+    REGION_INTERSECT(pScreen, pWinRgn, pWinRgn, pSibRgn);

+    ret = REGION_NOTEMPTY(pScreen, pWinRgn);

+    REGION_DESTROY(pScreen, pWinRgn);

+    REGION_DESTROY(pScreen, pSibRgn);

+    return ret;

+}

+

+static Bool

+AnyWindowOverlapsMe(

+    WindowPtr pWin,

+    WindowPtr pHead,

+    BoxPtr box)

+{

+    WindowPtr pSib;

+    BoxRec sboxrec;

+    BoxPtr sbox;

+

+    for (pSib = pWin->prevSib; pSib != pHead; pSib = pSib->prevSib)

+    {

+	if (pSib->mapped)

+	{

+	    sbox = WindowExtents(pSib, &sboxrec);

+	    if (BOXES_OVERLAP(sbox, box)

+	    && ShapeOverlap (pWin, box, pSib, sbox)

+	    )

+		return(TRUE);

+	}

+    }

+    return(FALSE);

+}

+

+static Bool

+IOverlapAnyWindow(

+    WindowPtr pWin,

+    BoxPtr box)

+{

+    WindowPtr pSib;

+    BoxRec sboxrec;

+    BoxPtr sbox;

+

+    for (pSib = pWin->nextSib; pSib; pSib = pSib->nextSib)

+    {

+	if (pSib->mapped)

+	{

+	    sbox = WindowExtents(pSib, &sboxrec);

+	    if (BOXES_OVERLAP(sbox, box)

+	    && ShapeOverlap (pWin, box, pSib, sbox)

+	    )

+		return(TRUE);

+	}

+    }

+    return(FALSE);

+}

+

+/*

+ *   WhereDoIGoInTheStack() 

+ *	  Given pWin and pSib and the relationshipe smode, return

+ *	  the window that pWin should go ABOVE.

+ *	  If a pSib is specified:

+ *	      Above:  pWin is placed just above pSib

+ *	      Below:  pWin is placed just below pSib

+ *	      TopIf:  if pSib occludes pWin, then pWin is placed

+ *		      at the top of the stack

+ *	      BottomIf:	 if pWin occludes pSib, then pWin is 

+ *			 placed at the bottom of the stack

+ *	      Opposite: if pSib occludes pWin, then pWin is placed at the

+ *			top of the stack, else if pWin occludes pSib, then

+ *			pWin is placed at the bottom of the stack

+ *

+ *	  If pSib is NULL:

+ *	      Above:  pWin is placed at the top of the stack

+ *	      Below:  pWin is placed at the bottom of the stack

+ *	      TopIf:  if any sibling occludes pWin, then pWin is placed at

+ *		      the top of the stack

+ *	      BottomIf: if pWin occludes any sibline, then pWin is placed at

+ *			the bottom of the stack

+ *	      Opposite: if any sibling occludes pWin, then pWin is placed at

+ *			the top of the stack, else if pWin occludes any

+ *			sibling, then pWin is placed at the bottom of the stack

+ *

+ */

+

+static WindowPtr

+WhereDoIGoInTheStack(

+    WindowPtr pWin,

+    WindowPtr pSib,

+    short x,

+    short y,

+    unsigned short w,

+    unsigned short h,

+    int smode)

+{

+    BoxRec box;

+    ScreenPtr pScreen;

+    WindowPtr pHead, pFirst;

+

+    if ((pWin == pWin->parent->firstChild) &&

+	(pWin == pWin->parent->lastChild))

+	return((WindowPtr ) NULL);

+    pHead = RealChildHead(pWin->parent);

+    pFirst = pHead ? pHead->nextSib : pWin->parent->firstChild;

+    pScreen = pWin->drawable.pScreen;

+    box.x1 = x;

+    box.y1 = y;

+    box.x2 = x + (int)w;

+    box.y2 = y + (int)h;

+    switch (smode)

+    {

+      case Above:

+	if (pSib)

+	   return(pSib);

+	else if (pWin == pFirst)

+	    return(pWin->nextSib);

+	else

+	    return(pFirst);

+      case Below:

+	if (pSib)

+	    if (pSib->nextSib != pWin)

+		return(pSib->nextSib);

+	    else

+		return(pWin->nextSib);

+	else

+	    return NullWindow;

+      case TopIf:

+	if ((!pWin->mapped || (pSib && !pSib->mapped)))

+	    return(pWin->nextSib);

+	else if (pSib)

+	{

+	    if ((IsSiblingAboveMe(pWin, pSib) == Above) &&

+		(RECT_IN_REGION(pScreen, &pSib->borderSize, &box) != rgnOUT))

+		return(pFirst);

+	    else

+		return(pWin->nextSib);

+	}

+	else if (AnyWindowOverlapsMe(pWin, pHead, &box))

+	    return(pFirst);

+	else

+	    return(pWin->nextSib);

+      case BottomIf:

+	if ((!pWin->mapped || (pSib && !pSib->mapped)))

+	    return(pWin->nextSib);

+	else if (pSib)

+	{

+	    if ((IsSiblingAboveMe(pWin, pSib) == Below) &&

+		(RECT_IN_REGION(pScreen, &pSib->borderSize, &box) != rgnOUT))

+		return NullWindow;

+	    else

+		return(pWin->nextSib);

+	}

+	else if (IOverlapAnyWindow(pWin, &box))

+	    return NullWindow;

+	else

+	    return(pWin->nextSib);

+      case Opposite:

+	if ((!pWin->mapped || (pSib && !pSib->mapped)))

+	    return(pWin->nextSib);

+	else if (pSib)

+	{

+	    if (RECT_IN_REGION(pScreen, &pSib->borderSize, &box) != rgnOUT)

+	    {

+		if (IsSiblingAboveMe(pWin, pSib) == Above)

+		    return(pFirst);

+		else

+		    return NullWindow;

+	    }

+	    else

+		return(pWin->nextSib);

+	}

+	else if (AnyWindowOverlapsMe(pWin, pHead, &box))

+	{

+	    /* If I'm occluded, I can't possibly be the first child

+	     * if (pWin == pWin->parent->firstChild)

+	     *	  return pWin->nextSib;

+	     */

+	    return(pFirst);

+	}

+	else if (IOverlapAnyWindow(pWin, &box))

+	    return NullWindow;

+	else

+	    return pWin->nextSib;

+      default:

+      {

+	/* should never happen; make something up. */

+	return pWin->nextSib;

+      }

+    }

+}

+

+static void

+ReflectStackChange(

+    WindowPtr pWin,

+    WindowPtr pSib,

+    VTKind  kind)

+{

+/* Note that pSib might be NULL */

+

+    Bool WasViewable = (Bool)pWin->viewable;

+    Bool anyMarked;

+    WindowPtr pFirstChange;

+    WindowPtr  pLayerWin;

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+

+    /* if this is a root window, can't be restacked */

+    if (!pWin->parent)

+	return;

+

+    pFirstChange = MoveWindowInStack(pWin, pSib);

+

+    if (WasViewable)

+    {

+	anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pFirstChange,

+						      &pLayerWin);

+	if (pLayerWin != pWin) pFirstChange = pLayerWin;

+	if (anyMarked)

+	{

+	    (*pScreen->ValidateTree)(pLayerWin->parent, pFirstChange, kind);

+	    (*pScreen->HandleExposures)(pLayerWin->parent);

+	}

+	if (anyMarked && pWin->drawable.pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pLayerWin->parent, pFirstChange, kind);

+    }

+    if (pWin->realized)

+	WindowsRestructured ();

+}

+

+/*****

+ * ConfigureWindow

+ *****/

+

+int

+ConfigureWindow(WindowPtr pWin, Mask mask, XID *vlist, ClientPtr client)

+{

+#define RESTACK_WIN    0

+#define MOVE_WIN       1

+#define RESIZE_WIN     2

+#define REBORDER_WIN   3

+    WindowPtr pSib = NullWindow;

+    WindowPtr pParent = pWin->parent;

+    Window sibwid = 0;

+    Mask index2, tmask;

+    XID *pVlist;

+    short x,   y, beforeX, beforeY;

+    unsigned short w = pWin->drawable.width,

+		   h = pWin->drawable.height,

+		   bw = pWin->borderWidth;

+    int rc, action, smode = Above;

+    xEvent event;

+

+    if ((pWin->drawable.class == InputOnly) && (mask & IllegalInputOnlyConfigureMask))

+	return(BadMatch);

+

+    if ((mask & CWSibling) && !(mask & CWStackMode))

+	return(BadMatch);

+

+    pVlist = vlist;

+

+    if (pParent)

+    {

+	x = pWin->drawable.x - pParent->drawable.x - (int)bw;

+	y = pWin->drawable.y - pParent->drawable.y - (int)bw;

+    }

+    else

+    {

+	x = pWin->drawable.x;

+	y = pWin->drawable.y;

+    }

+    beforeX = x;

+    beforeY = y;

+    action = RESTACK_WIN;	

+    if ((mask & (CWX | CWY)) && (!(mask & (CWHeight | CWWidth))))

+    {

+	GET_INT16(CWX, x);

+	GET_INT16(CWY, y);

+	action = MOVE_WIN;

+    }

+	/* or should be resized */

+    else if (mask & (CWX |  CWY | CWWidth | CWHeight))

+    {

+	GET_INT16(CWX, x);

+	GET_INT16(CWY, y);

+	GET_CARD16(CWWidth, w);

+	GET_CARD16 (CWHeight, h);

+	if (!w || !h)

+	{

+	    client->errorValue = 0;

+	    return BadValue;

+	}

+	action = RESIZE_WIN;

+    }

+    tmask = mask & ~ChangeMask;

+    while (tmask)

+    {

+	index2 = (Mask)lowbit (tmask);

+	tmask &= ~index2;

+	switch (index2)

+	{

+	  case CWBorderWidth:

+	    GET_CARD16(CWBorderWidth, bw);

+	    break;

+	  case CWSibling:

+	    sibwid = (Window ) *pVlist;

+	    pVlist++;

+	    rc = dixLookupWindow(&pSib, sibwid, client, DixGetAttrAccess);

+	    if (rc != Success)

+	    {

+		client->errorValue = sibwid;

+		return rc;

+	    }

+	    if (pSib->parent != pParent)

+		return(BadMatch);

+	    if (pSib == pWin)

+		return(BadMatch);

+	    break;

+	  case CWStackMode:

+	    GET_CARD8(CWStackMode, smode);

+	    if ((smode != TopIf) && (smode != BottomIf) &&

+		(smode != Opposite) && (smode != Above) && (smode != Below))

+	    {

+		client->errorValue = smode;

+		return(BadValue);

+	    }

+	    break;

+	  default:

+	    client->errorValue = mask;

+	    return(BadValue);

+	}

+    }

+	/* root really can't be reconfigured, so just return */

+    if (!pParent)

+	return Success;

+

+	/* Figure out if the window should be moved.  Doesnt

+	   make the changes to the window if event sent */

+

+    if (mask & CWStackMode)

+	pSib = WhereDoIGoInTheStack(pWin, pSib, pParent->drawable.x + x,

+				    pParent->drawable.y + y,

+				    w + (bw << 1), h + (bw << 1), smode);

+    else

+	pSib = pWin->nextSib;

+

+

+    if ((!pWin->overrideRedirect) && 

+	(RedirectSend(pParent)

+	))

+    {

+	memset(&event, 0, sizeof(xEvent));

+	event.u.u.type = ConfigureRequest;

+	event.u.configureRequest.window = pWin->drawable.id;

+	if (mask & CWSibling)

+	   event.u.configureRequest.sibling = sibwid;

+	else

+	    event.u.configureRequest.sibling = None;

+	if (mask & CWStackMode)

+	   event.u.u.detail = smode;

+	else

+	    event.u.u.detail = Above;

+	event.u.configureRequest.x = x;

+	event.u.configureRequest.y = y;

+#ifdef PANORAMIX

+	if(!noPanoramiXExtension && (!pParent || !pParent->parent)) {

+            event.u.configureRequest.x += panoramiXdataPtr[0].x;

+            event.u.configureRequest.y += panoramiXdataPtr[0].y;

+	}

+#endif

+	event.u.configureRequest.width = w;

+	event.u.configureRequest.height = h;

+	event.u.configureRequest.borderWidth = bw;

+	event.u.configureRequest.valueMask = mask;

+	event.u.configureRequest.parent = pParent->drawable.id;

+	if (MaybeDeliverEventsToClient(pParent, &event, 1,

+		SubstructureRedirectMask, client) == 1)

+	    return(Success);

+    }

+    if (action == RESIZE_WIN)

+    {

+	Bool size_change = (w != pWin->drawable.width)

+			|| (h != pWin->drawable.height);

+	if (size_change && ((pWin->eventMask|wOtherEventMasks(pWin)) & ResizeRedirectMask))

+	{

+	    xEvent eventT;

+	    memset(&eventT, 0, sizeof(xEvent));

+	    eventT.u.u.type = ResizeRequest;

+	    eventT.u.resizeRequest.window = pWin->drawable.id;

+	    eventT.u.resizeRequest.width = w;

+	    eventT.u.resizeRequest.height = h;

+	    if (MaybeDeliverEventsToClient(pWin, &eventT, 1,

+				       ResizeRedirectMask, client) == 1)

+	    {

+		/* if event is delivered, leave the actual size alone. */

+		w = pWin->drawable.width;

+		h = pWin->drawable.height;

+		size_change = FALSE;

+	    }

+	}

+	if (!size_change)

+	{

+	    if (mask & (CWX | CWY))

+		action = MOVE_WIN;

+	    else if (mask & (CWStackMode | CWBorderWidth))

+		action = RESTACK_WIN;

+	    else   /* really nothing to do */

+		return(Success) ;

+	}

+    }

+

+    if (action == RESIZE_WIN)

+	    /* we've already checked whether there's really a size change */

+	    goto ActuallyDoSomething;

+    if ((mask & CWX) && (x != beforeX))

+	    goto ActuallyDoSomething;

+    if ((mask & CWY) && (y != beforeY))

+	    goto ActuallyDoSomething;

+    if ((mask & CWBorderWidth) && (bw != wBorderWidth (pWin)))

+	    goto ActuallyDoSomething;

+    if (mask & CWStackMode)

+    {

+#ifndef ROOTLESS

+        /* See above for why we always reorder in rootless mode. */

+	if (pWin->nextSib != pSib)

+#endif

+	    goto ActuallyDoSomething;

+    }

+    return(Success);

+

+ActuallyDoSomething:

+    if (SubStrSend(pWin, pParent))

+    {

+	memset(&event, 0, sizeof(xEvent));

+	event.u.u.type = ConfigureNotify;

+	event.u.configureNotify.window = pWin->drawable.id;

+	if (pSib)

+	    event.u.configureNotify.aboveSibling = pSib->drawable.id;

+	else

+	    event.u.configureNotify.aboveSibling = None;

+	event.u.configureNotify.x = x;

+	event.u.configureNotify.y = y;

+#ifdef PANORAMIX

+	if(!noPanoramiXExtension && (!pParent || !pParent->parent)) {

+	    event.u.configureNotify.x += panoramiXdataPtr[0].x;

+            event.u.configureNotify.y += panoramiXdataPtr[0].y;

+	}

+#endif

+	event.u.configureNotify.width = w;

+	event.u.configureNotify.height = h;

+	event.u.configureNotify.borderWidth = bw;

+	event.u.configureNotify.override = pWin->overrideRedirect;

+	DeliverEvents(pWin, &event, 1, NullWindow);

+    }

+    if (mask & CWBorderWidth)

+    {

+	if (action == RESTACK_WIN)

+	{

+	    action = MOVE_WIN;

+	    pWin->borderWidth = bw;

+	}

+	else if ((action == MOVE_WIN) &&

+		 (beforeX + wBorderWidth (pWin) == x + (int)bw) &&

+		 (beforeY + wBorderWidth (pWin) == y + (int)bw))

+	{

+	    action = REBORDER_WIN;

+	    (*pWin->drawable.pScreen->ChangeBorderWidth)(pWin, bw);

+	}

+	else

+	    pWin->borderWidth = bw;

+    }

+    if (action == MOVE_WIN)

+	(*pWin->drawable.pScreen->MoveWindow)(pWin, x, y, pSib,

+		   (mask & CWBorderWidth) ? VTOther : VTMove);

+    else if (action == RESIZE_WIN)

+	(*pWin->drawable.pScreen->ResizeWindow)(pWin, x, y, w, h, pSib);

+    else if (mask & CWStackMode)

+	ReflectStackChange(pWin, pSib, VTOther);

+

+    if (action != RESTACK_WIN)

+	CheckCursorConfinement(pWin);

+    return(Success);

+#undef RESTACK_WIN

+#undef MOVE_WIN

+#undef RESIZE_WIN

+#undef REBORDER_WIN

+}

+

+

+/******

+ *

+ * CirculateWindow

+ *    For RaiseLowest, raises the lowest mapped child (if any) that is

+ *    obscured by another child to the top of the stack.  For LowerHighest,

+ *    lowers the highest mapped child (if any) that is obscuring another

+ *    child to the bottom of the stack.	 Exposure processing is performed 

+ *

+ ******/

+

+int

+CirculateWindow(WindowPtr pParent, int direction, ClientPtr client)

+{

+    WindowPtr pWin, pHead, pFirst;

+    xEvent event;

+    BoxRec box;

+

+    pHead = RealChildHead(pParent);

+    pFirst = pHead ? pHead->nextSib : pParent->firstChild;

+    if (direction == RaiseLowest)

+    {

+	for (pWin = pParent->lastChild;

+	     (pWin != pHead) &&

+	     !(pWin->mapped &&

+	       AnyWindowOverlapsMe(pWin, pHead, WindowExtents(pWin, &box)));

+	     pWin = pWin->prevSib) ;

+	if (pWin == pHead)

+	    return Success;

+    }

+    else

+    {

+	for (pWin = pFirst;

+	     pWin &&

+	     !(pWin->mapped &&

+	       IOverlapAnyWindow(pWin, WindowExtents(pWin, &box)));

+	     pWin = pWin->nextSib) ;

+	if (!pWin)

+	    return Success;

+    }

+

+    event.u.circulate.window = pWin->drawable.id;

+    event.u.circulate.parent = pParent->drawable.id;

+    event.u.circulate.event = pParent->drawable.id;

+    if (direction == RaiseLowest)

+	event.u.circulate.place = PlaceOnTop;

+    else

+	event.u.circulate.place = PlaceOnBottom;

+

+    if (RedirectSend(pParent))

+    {

+	event.u.u.type = CirculateRequest;

+	if (MaybeDeliverEventsToClient(pParent, &event, 1,

+		SubstructureRedirectMask, client) == 1)

+	    return(Success);

+    }

+

+    event.u.u.type = CirculateNotify;

+    DeliverEvents(pWin, &event, 1, NullWindow);

+    ReflectStackChange(pWin,

+		       (direction == RaiseLowest) ? pFirst : NullWindow,

+		       VTStack);

+

+    return(Success);

+}

+

+static int

+CompareWIDs(

+    WindowPtr pWin,

+    pointer   value) /* must conform to VisitWindowProcPtr */

+{

+    Window *wid = (Window *)value;

+

+    if (pWin->drawable.id == *wid)

+       return(WT_STOPWALKING);

+    else

+       return(WT_WALKCHILDREN);

+}

+

+/*****

+ *  ReparentWindow

+ *****/

+

+int

+ReparentWindow(WindowPtr pWin, WindowPtr pParent,

+               int x, int y, ClientPtr client)

+{

+    WindowPtr pPrev, pPriorParent;

+    Bool WasMapped = (Bool)(pWin->mapped);

+    xEvent event;

+    int bw = wBorderWidth (pWin);

+    ScreenPtr pScreen;

+

+    pScreen = pWin->drawable.pScreen;

+    if (TraverseTree(pWin, CompareWIDs, (pointer)&pParent->drawable.id) == WT_STOPWALKING)

+	return(BadMatch);		

+    if (!MakeWindowOptional(pWin))

+	return(BadAlloc);

+

+    if (WasMapped)

+       UnmapWindow(pWin, FALSE);

+

+    memset(&event, 0, sizeof(xEvent));

+    event.u.u.type = ReparentNotify;

+    event.u.reparent.window = pWin->drawable.id;

+    event.u.reparent.parent = pParent->drawable.id;

+    event.u.reparent.x = x;

+    event.u.reparent.y = y;

+#ifdef PANORAMIX

+    if(!noPanoramiXExtension && !pParent->parent) {

+	event.u.reparent.x += panoramiXdataPtr[0].x;

+	event.u.reparent.y += panoramiXdataPtr[0].y;

+    }

+#endif

+    event.u.reparent.override = pWin->overrideRedirect;

+    DeliverEvents(pWin, &event, 1, pParent);

+

+    /* take out of sibling chain */

+

+    pPriorParent = pPrev = pWin->parent;

+    if (pPrev->firstChild == pWin)

+	pPrev->firstChild = pWin->nextSib;

+    if (pPrev->lastChild == pWin)

+	pPrev->lastChild = pWin->prevSib;

+

+    if (pWin->nextSib)

+	pWin->nextSib->prevSib = pWin->prevSib;

+    if (pWin->prevSib)

+	pWin->prevSib->nextSib = pWin->nextSib;

+

+    /* insert at begining of pParent */

+    pWin->parent = pParent;

+    pPrev = RealChildHead(pParent);

+    if (pPrev)

+    {

+	pWin->nextSib = pPrev->nextSib;

+	if (pPrev->nextSib)

+	    pPrev->nextSib->prevSib = pWin;

+	else

+	    pParent->lastChild = pWin;

+	pPrev->nextSib = pWin;

+	pWin->prevSib = pPrev;

+    }

+    else

+    {

+	pWin->nextSib = pParent->firstChild;

+	pWin->prevSib = NullWindow;

+	if (pParent->firstChild)

+	    pParent->firstChild->prevSib = pWin;

+	else

+	    pParent->lastChild = pWin;

+	pParent->firstChild = pWin;

+    }

+

+    pWin->origin.x = x + bw;

+    pWin->origin.y = y + bw;

+    pWin->drawable.x = x + bw + pParent->drawable.x;

+    pWin->drawable.y = y + bw + pParent->drawable.y;

+

+    /* clip to parent */

+    SetWinSize (pWin);

+    SetBorderSize (pWin);

+

+    if (pScreen->ReparentWindow)

+	(*pScreen->ReparentWindow)(pWin, pPriorParent);

+    (*pScreen->PositionWindow)(pWin, pWin->drawable.x, pWin->drawable.y);

+    ResizeChildrenWinSize(pWin, 0, 0, 0, 0);

+

+    CheckWindowOptionalNeed(pWin);

+

+    if (WasMapped)

+	MapWindow(pWin, client);

+    RecalculateDeliverableEvents(pWin);

+    return(Success);

+}

+

+static void

+RealizeTree(WindowPtr pWin)

+{

+    WindowPtr pChild;

+    RealizeWindowProcPtr Realize;

+

+    Realize = pWin->drawable.pScreen->RealizeWindow;

+    pChild = pWin;

+    while (1)

+    {

+	if (pChild->mapped)

+	{

+	    pChild->realized = TRUE;

+	    pChild->viewable = (pChild->drawable.class == InputOutput);

+	    (* Realize)(pChild);

+	    if (pChild->firstChild)

+	    {

+		pChild = pChild->firstChild;

+		continue;

+	    }

+	}

+	while (!pChild->nextSib && (pChild != pWin))

+	    pChild = pChild->parent;

+	if (pChild == pWin)

+	    return;

+	pChild = pChild->nextSib;

+    }

+}

+

+static WindowPtr windowDisableMapUnmapEvents;

+

+void

+DisableMapUnmapEvents(WindowPtr pWin)

+{

+    assert (windowDisableMapUnmapEvents == NULL);

+    

+    windowDisableMapUnmapEvents = pWin;

+}

+

+void

+EnableMapUnmapEvents(WindowPtr pWin)

+{

+    assert (windowDisableMapUnmapEvents != NULL);

+

+    windowDisableMapUnmapEvents = NULL;

+}

+

+static Bool

+MapUnmapEventsEnabled(WindowPtr pWin)

+{

+    return pWin != windowDisableMapUnmapEvents;

+}

+

+/*****

+ * MapWindow

+ *    If some other client has selected SubStructureReDirect on the parent

+ *    and override-redirect is xFalse, then a MapRequest event is generated,

+ *    but the window remains unmapped.	Otherwise, the window is mapped and a

+ *    MapNotify event is generated.

+ *****/

+

+int

+MapWindow(WindowPtr pWin, ClientPtr client)

+{

+    ScreenPtr pScreen;

+

+    WindowPtr pParent;

+    WindowPtr  pLayerWin;

+

+    if (pWin->mapped)

+	return(Success);

+

+    /*  general check for permission to map window */

+    if (XaceHook(XACE_RESOURCE_ACCESS, client, pWin->drawable.id, RT_WINDOW,

+		 pWin, RT_NONE, NULL, DixShowAccess) != Success)

+	return Success;

+

+    pScreen = pWin->drawable.pScreen;

+    if ( (pParent = pWin->parent) )

+    {

+	xEvent event;

+	Bool anyMarked;

+

+	if ((!pWin->overrideRedirect) && 

+	    (RedirectSend(pParent)

+	))

+	{

+	    memset(&event, 0, sizeof(xEvent));

+	    event.u.u.type = MapRequest;

+	    event.u.mapRequest.window = pWin->drawable.id;

+	    event.u.mapRequest.parent = pParent->drawable.id;

+

+	    if (MaybeDeliverEventsToClient(pParent, &event, 1,

+		SubstructureRedirectMask, client) == 1)

+		return(Success);

+	}

+

+	pWin->mapped = TRUE;

+	if (SubStrSend(pWin, pParent) && MapUnmapEventsEnabled(pWin))

+	{

+	    memset(&event, 0, sizeof(xEvent));

+	    event.u.u.type = MapNotify;

+	    event.u.mapNotify.window = pWin->drawable.id;

+	    event.u.mapNotify.override = pWin->overrideRedirect;

+	    DeliverEvents(pWin, &event, 1, NullWindow);

+	}

+

+	if (!pParent->realized)

+	    return(Success);

+	RealizeTree(pWin);

+	if (pWin->viewable)

+	{

+	    anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin,

+							  &pLayerWin);

+	    if (anyMarked)

+	    {

+		(*pScreen->ValidateTree)(pLayerWin->parent, pLayerWin, VTMap);

+		(*pScreen->HandleExposures)(pLayerWin->parent);

+	    }

+	if (anyMarked && pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pLayerWin->parent, pLayerWin, VTMap);

+	}

+	WindowsRestructured ();

+    }

+    else

+    {

+	RegionRec   temp;

+

+	pWin->mapped = TRUE;

+	pWin->realized = TRUE;	   /* for roots */

+	pWin->viewable = pWin->drawable.class == InputOutput;

+	/* We SHOULD check for an error value here XXX */

+	(*pScreen->RealizeWindow)(pWin);

+	if (pScreen->ClipNotify)

+	    (*pScreen->ClipNotify) (pWin, 0, 0);

+	if (pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(NullWindow, pWin, VTMap);

+	REGION_NULL(pScreen, &temp);

+	REGION_COPY(pScreen, &temp, &pWin->clipList);

+	(*pScreen->WindowExposures) (pWin, &temp, NullRegion);

+	REGION_UNINIT(pScreen, &temp);

+    }

+

+    return(Success);

+}

+

+

+/*****

+ * MapSubwindows

+ *    Performs a MapWindow all unmapped children of the window, in top

+ *    to bottom stacking order.

+ *****/

+

+void

+MapSubwindows(WindowPtr pParent, ClientPtr client)

+{

+    WindowPtr	pWin;

+    WindowPtr	pFirstMapped = NullWindow;

+    ScreenPtr	pScreen;

+    Mask	parentRedirect;

+    Mask	parentNotify;

+    xEvent	event;

+    Bool	anyMarked;

+    WindowPtr		pLayerWin;

+

+    pScreen = pParent->drawable.pScreen;

+    parentRedirect = RedirectSend(pParent);

+    parentNotify = SubSend(pParent);

+    anyMarked = FALSE;

+    for (pWin = pParent->firstChild; pWin; pWin = pWin->nextSib)

+    {

+	if (!pWin->mapped)

+	{

+	    if (parentRedirect && !pWin->overrideRedirect)

+	    {

+		memset(&event, 0, sizeof(xEvent));

+		event.u.u.type = MapRequest;

+		event.u.mapRequest.window = pWin->drawable.id;

+		event.u.mapRequest.parent = pParent->drawable.id;

+    

+		if (MaybeDeliverEventsToClient(pParent, &event, 1,

+		    SubstructureRedirectMask, client) == 1)

+		    continue;

+	    }

+    

+	    pWin->mapped = TRUE;

+	    if (parentNotify || StrSend(pWin))

+	    {

+		memset(&event, 0, sizeof(xEvent));

+		event.u.u.type = MapNotify;

+		event.u.mapNotify.window = pWin->drawable.id;

+		event.u.mapNotify.override = pWin->overrideRedirect;

+		DeliverEvents(pWin, &event, 1, NullWindow);

+	    }

+    

+	    if (!pFirstMapped)

+		pFirstMapped = pWin;

+	    if (pParent->realized)

+	    {

+		RealizeTree(pWin);

+		if (pWin->viewable)

+		{

+		    anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pWin,

+							(WindowPtr *)NULL);

+		}

+	    }

+	}

+    }

+

+    if (pFirstMapped)

+    {

+	pLayerWin = (*pScreen->GetLayerWindow)(pParent);

+	if (pLayerWin->parent != pParent) {

+	    anyMarked |= (*pScreen->MarkOverlappedWindows)(pLayerWin,

+							   pLayerWin,

+							   (WindowPtr *)NULL);

+	    pFirstMapped = pLayerWin;

+	}

+        if (anyMarked)

+        {

+	    (*pScreen->ValidateTree)(pLayerWin->parent, pFirstMapped, VTMap);

+	    (*pScreen->HandleExposures)(pLayerWin->parent);

+	}

+        if (anyMarked && pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pLayerWin->parent, pFirstMapped,

+					 VTMap);

+        WindowsRestructured ();

+    }

+}

+

+static void

+UnrealizeTree(

+    WindowPtr pWin,

+    Bool fromConfigure)

+{

+    WindowPtr pChild;

+    UnrealizeWindowProcPtr Unrealize;

+    MarkUnrealizedWindowProcPtr MarkUnrealizedWindow;

+    int rc;

+

+    Unrealize = pWin->drawable.pScreen->UnrealizeWindow;

+    MarkUnrealizedWindow = pWin->drawable.pScreen->MarkUnrealizedWindow;

+    pChild = pWin;

+    while (1)

+    {

+	if (pChild->realized)

+	{

+	    pChild->realized = FALSE;

+	    pChild->visibility = VisibilityNotViewable;

+#ifdef PANORAMIX

+	    if(!noPanoramiXExtension && !pChild->drawable.pScreen->myNum) {

+		PanoramiXRes *win;

+		rc = dixLookupResourceByType((pointer *)&win,

+					     pChild->drawable.id, XRT_WINDOW,

+					     serverClient, DixWriteAccess);

+		if (rc == Success)

+		   win->u.win.visibility = VisibilityNotViewable;

+	    } 

+#endif

+	    (* Unrealize)(pChild);

+	    if (MapUnmapEventsEnabled(pWin))

+		DeleteWindowFromAnyEvents(pChild, FALSE);

+	    if (pChild->viewable)

+	    {

+		pChild->viewable = FALSE;

+		(* MarkUnrealizedWindow)(pChild, pWin, fromConfigure);

+		pChild->drawable.serialNumber = NEXT_SERIAL_NUMBER;

+	    }

+	    if (pChild->firstChild)

+	    {

+		pChild = pChild->firstChild;

+		continue;

+	    }

+	}

+	while (!pChild->nextSib && (pChild != pWin))

+	    pChild = pChild->parent;

+	if (pChild == pWin)

+	    return;

+	pChild = pChild->nextSib;

+    }

+}

+

+/*****

+ * UnmapWindow

+ *    If the window is already unmapped, this request has no effect.

+ *    Otherwise, the window is unmapped and an UnMapNotify event is

+ *    generated.  Cannot unmap a root window.

+ *****/

+

+int

+UnmapWindow(WindowPtr pWin, Bool fromConfigure)

+{

+    WindowPtr pParent;

+    xEvent event;

+    Bool wasRealized = (Bool)pWin->realized;

+    Bool wasViewable = (Bool)pWin->viewable;

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    WindowPtr pLayerWin = pWin;

+

+    if ((!pWin->mapped) || (!(pParent = pWin->parent)))

+	return(Success);

+    if (SubStrSend(pWin, pParent) && MapUnmapEventsEnabled(pWin))

+    {

+	memset(&event, 0, sizeof(xEvent));

+	event.u.u.type = UnmapNotify;

+	event.u.unmapNotify.window = pWin->drawable.id;

+	event.u.unmapNotify.fromConfigure = fromConfigure;

+	DeliverEvents(pWin, &event, 1, NullWindow);

+    }

+    if (wasViewable && !fromConfigure)

+    {

+	pWin->valdata = UnmapValData;

+	(*pScreen->MarkOverlappedWindows)(pWin, pWin->nextSib, &pLayerWin);

+	(*pScreen->MarkWindow)(pLayerWin->parent);

+    }

+    pWin->mapped = FALSE;

+    if (wasRealized)

+	UnrealizeTree(pWin, fromConfigure);

+    if (wasViewable)

+    {

+	if (!fromConfigure)

+	{

+	    (*pScreen->ValidateTree)(pLayerWin->parent, pWin, VTUnmap);

+	    (*pScreen->HandleExposures)(pLayerWin->parent);

+	}

+	if (!fromConfigure && pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pLayerWin->parent, pWin, VTUnmap);

+    }

+    if (wasRealized && !fromConfigure)

+	WindowsRestructured ();

+    return(Success);

+}

+

+/*****

+ * UnmapSubwindows

+ *    Performs an UnmapWindow request with the specified mode on all mapped

+ *    children of the window, in bottom to top stacking order.

+ *****/

+

+void

+UnmapSubwindows(WindowPtr pWin)

+{

+    WindowPtr pChild, pHead;

+    xEvent event;

+    Bool wasRealized = (Bool)pWin->realized;

+    Bool wasViewable = (Bool)pWin->viewable;

+    Bool anyMarked = FALSE;

+    Mask parentNotify;

+    WindowPtr pLayerWin = NULL;

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+

+    if (!pWin->firstChild)

+	return;

+    parentNotify = SubSend(pWin);

+    pHead = RealChildHead(pWin);

+

+    if (wasViewable)

+	pLayerWin = (*pScreen->GetLayerWindow)(pWin);

+

+    for (pChild = pWin->lastChild; pChild != pHead; pChild = pChild->prevSib)

+    {

+	if (pChild->mapped)

+	{

+	    if (parentNotify || StrSend(pChild))

+	    {

+		event.u.u.type = UnmapNotify;

+		event.u.unmapNotify.window = pChild->drawable.id;

+		event.u.unmapNotify.fromConfigure = xFalse;

+		DeliverEvents(pChild, &event, 1, NullWindow);

+	    }

+	    if (pChild->viewable)

+	    {

+		pChild->valdata = UnmapValData;

+		anyMarked = TRUE;

+	    }

+	    pChild->mapped = FALSE;

+	    if (pChild->realized)

+		UnrealizeTree(pChild, FALSE);

+	    if (wasViewable)

+	    {

+	    }

+	}

+    }

+    if (wasViewable)

+    {

+	if (anyMarked)

+	{

+	    if (pLayerWin->parent == pWin)

+		(*pScreen->MarkWindow)(pWin);

+	    else

+	    {

+		WindowPtr ptmp;

+                (*pScreen->MarkOverlappedWindows)(pWin, pLayerWin,

+						  (WindowPtr *)NULL);

+		(*pScreen->MarkWindow)(pLayerWin->parent);

+		

+		/* Windows between pWin and pLayerWin may not have been marked */

+		ptmp = pWin;

+ 

+		while (ptmp != pLayerWin->parent)

+		{

+		    (*pScreen->MarkWindow)(ptmp);

+		    ptmp = ptmp->parent;

+		}

+                pHead = pWin->firstChild;

+	    }

+	    (*pScreen->ValidateTree)(pLayerWin->parent, pHead, VTUnmap);

+	    (*pScreen->HandleExposures)(pLayerWin->parent);

+	}

+	if (anyMarked && pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pLayerWin->parent, pHead, VTUnmap);

+    }

+    if (wasRealized)

+	WindowsRestructured ();

+}

+

+

+void

+HandleSaveSet(ClientPtr client)

+{

+    WindowPtr pParent, pWin;

+    int j;

+

+    for (j=0; j<client->numSaved; j++)

+    {

+	pWin = SaveSetWindow(client->saveSet[j]);

+#ifdef XFIXES

+	if (SaveSetToRoot(client->saveSet[j]))

+	    pParent = WindowTable[pWin->drawable.pScreen->myNum];

+	else

+#endif

+	{

+	    pParent = pWin->parent;

+	    while (pParent && (wClient (pParent) == client))

+		pParent = pParent->parent;

+	}

+	if (pParent)

+	{

+	    if (pParent != pWin->parent)

+	    {

+#ifdef XFIXES

+		/* unmap first so that ReparentWindow doesn't remap */

+		if (!SaveSetShouldMap (client->saveSet[j]))

+		    UnmapWindow(pWin, FALSE);

+#endif

+		ReparentWindow(pWin, pParent,

+			       pWin->drawable.x - wBorderWidth (pWin) - pParent->drawable.x,

+			       pWin->drawable.y - wBorderWidth (pWin) - pParent->drawable.y,

+			       client);

+		if(!pWin->realized && pWin->mapped)

+		    pWin->mapped = FALSE;

+	    }

+#ifdef XFIXES

+	    if (SaveSetShouldMap (client->saveSet[j]))

+#endif

+		MapWindow(pWin, client);

+	}

+    }

+    xfree(client->saveSet);

+    client->numSaved = 0;

+    client->saveSet = (SaveSetElt *)NULL;

+}

+

+/**

+ *

+ * \param x,y  in root

+ */

+Bool

+PointInWindowIsVisible(WindowPtr pWin, int x, int y)

+{

+    BoxRec box;

+

+    if (!pWin->realized)

+	return (FALSE);

+    if (POINT_IN_REGION(pWin->drawable.pScreen, &pWin->borderClip,

+						  x, y, &box)

+	&& (!wInputShape(pWin) ||

+	    POINT_IN_REGION(pWin->drawable.pScreen,

+			    wInputShape(pWin),

+			    x - pWin->drawable.x, 

+			    y - pWin->drawable.y, &box)))

+	return(TRUE);

+    return(FALSE);

+}

+

+

+RegionPtr

+NotClippedByChildren(WindowPtr pWin)

+{

+    ScreenPtr pScreen;

+    RegionPtr pReg;

+

+    pScreen = pWin->drawable.pScreen;

+    pReg = REGION_CREATE(pScreen, NullBox, 1);

+    if (pWin->parent ||

+	screenIsSaved != SCREEN_SAVER_ON ||

+	!HasSaverWindow (pWin->drawable.pScreen->myNum))

+    {

+	REGION_INTERSECT(pScreen, pReg, &pWin->borderClip, &pWin->winSize);

+    }

+    return(pReg);

+}

+

+void

+SendVisibilityNotify(WindowPtr pWin)

+{

+    xEvent event;

+#ifndef NO_XINERAMA_PORT

+    unsigned int visibility = pWin->visibility;

+#endif

+    if (!MapUnmapEventsEnabled(pWin))

+        return;

+#ifdef PANORAMIX

+    /* This is not quite correct yet, but it's close */

+    if(!noPanoramiXExtension) {

+	PanoramiXRes *win;

+	WindowPtr pWin2;

+	int rc, i, Scrnum;

+

+	Scrnum = pWin->drawable.pScreen->myNum;

+	

+	win = PanoramiXFindIDByScrnum(XRT_WINDOW, pWin->drawable.id, Scrnum);

+

+	if(!win || (win->u.win.visibility == visibility))

+	    return;

+

+	switch(visibility) {

+	case VisibilityUnobscured:

+	    for(i = 0; i < PanoramiXNumScreens; i++) {

+		if(i == Scrnum) continue;

+

+		rc = dixLookupWindow(&pWin2, win->info[i].id, serverClient,

+				     DixWriteAccess);

+

+		if (rc == Success) {

+		    if(pWin2->visibility == VisibilityPartiallyObscured)

+		   	return;

+

+		    if(!i) pWin = pWin2;

+		}

+	    }

+	    break;

+	case VisibilityPartiallyObscured:

+	    if(Scrnum) {

+		rc = dixLookupWindow(&pWin2, win->info[0].id, serverClient,

+				     DixWriteAccess);

+		if (rc == Success) pWin = pWin2;

+	    }

+	    break;

+	case VisibilityFullyObscured:

+	    for(i = 0; i < PanoramiXNumScreens; i++) {

+		if(i == Scrnum) continue;

+

+		rc = dixLookupWindow(&pWin2, win->info[i].id, serverClient,

+				     DixWriteAccess);

+		

+		if (rc == Success) {

+		    if(pWin2->visibility != VisibilityFullyObscured)

+		    	return;

+

+		    if(!i) pWin = pWin2;

+		}

+	    }

+	    break;

+	}

+	

+	win->u.win.visibility = visibility;

+    }

+#endif

+

+    memset(&event, 0, sizeof(xEvent));

+    event.u.u.type = VisibilityNotify;

+    event.u.visibility.window = pWin->drawable.id;

+    event.u.visibility.state = visibility;

+    DeliverEvents(pWin, &event, 1, NullWindow);

+}

+

+#define RANDOM_WIDTH 32

+

+#ifndef NOLOGOHACK

+static void DrawLogo(

+    WindowPtr pWin

+);

+#endif

+

+int

+dixSaveScreens(ClientPtr client, int on, int mode)

+{

+    int rc, i, what, type;

+

+    if (on == SCREEN_SAVER_FORCER)

+    {

+	if (mode == ScreenSaverReset)

+	    what = SCREEN_SAVER_OFF;

+	else

+	    what = SCREEN_SAVER_ON;

+	type = what;

+    }

+    else

+    {

+	what = on;

+	type = what;

+	if (what == screenIsSaved)

+	    type = SCREEN_SAVER_CYCLE;

+    }

+

+    for (i = 0; i < screenInfo.numScreens; i++) {

+	rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i],

+		      DixShowAccess | DixHideAccess);

+	if (rc != Success)

+	    return rc;

+    }

+    for (i = 0; i < screenInfo.numScreens; i++)

+    {

+	if (on == SCREEN_SAVER_FORCER)

+	   (* screenInfo.screens[i]->SaveScreen) (screenInfo.screens[i], on);

+	if (savedScreenInfo[i].ExternalScreenSaver)

+	{

+	    if ((*savedScreenInfo[i].ExternalScreenSaver)

+		(screenInfo.screens[i], type, on == SCREEN_SAVER_FORCER))

+		continue;

+	}

+	if (type == screenIsSaved)

+	    continue;

+	switch (type) {

+	case SCREEN_SAVER_OFF:

+	    if (savedScreenInfo[i].blanked == SCREEN_IS_BLANKED)

+	    {

+	       (* screenInfo.screens[i]->SaveScreen) (screenInfo.screens[i],

+						      what);

+	    }

+	    else if (HasSaverWindow (i))

+	    {

+		savedScreenInfo[i].pWindow = NullWindow;

+		FreeResource(savedScreenInfo[i].wid, RT_NONE);

+	    }

+	    break;

+	case SCREEN_SAVER_CYCLE:

+	    if (savedScreenInfo[i].blanked == SCREEN_IS_TILED)

+	    {

+		WindowPtr pWin = savedScreenInfo[i].pWindow;

+		/* make it look like screen saver is off, so that

+		 * NotClippedByChildren will compute a clip list

+		 * for the root window, so miPaintWindow works

+		 */

+		screenIsSaved = SCREEN_SAVER_OFF;

+#ifndef NOLOGOHACK

+		if (logoScreenSaver)

+		    (*pWin->drawable.pScreen->ClearToBackground)(pWin, 0, 0, 0, 0, FALSE);

+#endif

+		(*pWin->drawable.pScreen->MoveWindow)(pWin,

+			   (short)(-(rand() % RANDOM_WIDTH)),

+			   (short)(-(rand() % RANDOM_WIDTH)),

+			   pWin->nextSib, VTMove);

+#ifndef NOLOGOHACK

+		if (logoScreenSaver)

+		    DrawLogo(pWin);

+#endif

+		screenIsSaved = SCREEN_SAVER_ON;

+	    }

+	    /*

+	     * Call the DDX saver in case it wants to do something

+	     * at cycle time

+	     */

+	    else if (savedScreenInfo[i].blanked == SCREEN_IS_BLANKED)

+	    {

+		(* screenInfo.screens[i]->SaveScreen) (screenInfo.screens[i],

+						       type);

+	    }

+	    break;

+	case SCREEN_SAVER_ON:

+	    if (ScreenSaverBlanking != DontPreferBlanking)

+	    {

+		if ((* screenInfo.screens[i]->SaveScreen)

+		   (screenInfo.screens[i], what))

+		{

+		   savedScreenInfo[i].blanked = SCREEN_IS_BLANKED;

+		   continue;

+		}

+		if ((ScreenSaverAllowExposures != DontAllowExposures) &&

+		    TileScreenSaver(i, SCREEN_IS_BLACK))

+		{

+		    savedScreenInfo[i].blanked = SCREEN_IS_BLACK;

+		    continue;

+		}

+	    }

+	    if ((ScreenSaverAllowExposures != DontAllowExposures) &&

+		TileScreenSaver(i, SCREEN_IS_TILED))

+	    {

+		savedScreenInfo[i].blanked = SCREEN_IS_TILED;

+	    }

+	    else

+		savedScreenInfo[i].blanked = SCREEN_ISNT_SAVED;

+	    break;

+	}

+    }

+    screenIsSaved = what;

+    if (mode == ScreenSaverReset) {

+	if (on == SCREEN_SAVER_FORCER) {

+	    UpdateCurrentTimeIf();

+	    lastDeviceEventTime = currentTime;

+	}

+	SetScreenSaverTimer();

+    }

+    return Success;

+}

+

+int

+SaveScreens(int on, int mode)

+{

+    return dixSaveScreens(serverClient, on, mode);

+}

+

+static Bool

+TileScreenSaver(int i, int kind)

+{

+    int j;

+    int result;

+    XID attributes[3];

+    Mask mask;

+    WindowPtr pWin;		

+    CursorMetricRec cm;

+    unsigned char *srcbits, *mskbits;

+    CursorPtr cursor;

+    XID	cursorID = 0;

+    int	attri;

+

+    mask = 0;

+    attri = 0;

+    switch (kind) {

+    case SCREEN_IS_TILED:

+	switch (WindowTable[i]->backgroundState) {

+	case BackgroundPixel:

+	    attributes[attri++] = WindowTable[i]->background.pixel;

+	    mask |= CWBackPixel;

+	    break;

+	case BackgroundPixmap:

+	    attributes[attri++] = None;

+	    mask |= CWBackPixmap;

+	    break;

+	default:

+	    break;

+	}

+	break;

+    case SCREEN_IS_BLACK:

+	attributes[attri++] = WindowTable[i]->drawable.pScreen->blackPixel;

+	mask |= CWBackPixel;

+	break;

+    }

+    mask |= CWOverrideRedirect;

+    attributes[attri++] = xTrue;

+

+    /*

+     * create a blank cursor

+     */

+

+    cm.width=16;

+    cm.height=16;

+    cm.xhot=8;

+    cm.yhot=8;

+    srcbits = xalloc( BitmapBytePad(32)*16);

+    mskbits = xalloc( BitmapBytePad(32)*16);

+    if (!srcbits || !mskbits)

+    {

+	xfree(srcbits);

+	xfree(mskbits);

+	cursor = 0;

+    }

+    else

+    {

+	for (j=0; j<BitmapBytePad(32)*16; j++)

+	    srcbits[j] = mskbits[j] = 0x0;

+	result = AllocARGBCursor(srcbits, mskbits, NULL, &cm, 0, 0, 0, 0, 0, 0,

+				 &cursor, serverClient, (XID)0);

+	if (cursor)

+	{

+	    cursorID = FakeClientID(0);

+	    if (AddResource (cursorID, RT_CURSOR, (pointer) cursor))

+	    {

+		attributes[attri] = cursorID;

+		mask |= CWCursor;

+	    }

+	    else

+		cursor = 0;

+	}

+	else

+	{

+	    xfree (srcbits);

+	    xfree (mskbits);

+	}

+    }

+

+    pWin = savedScreenInfo[i].pWindow =

+	 CreateWindow(savedScreenInfo[i].wid,

+	      WindowTable[i],

+	      -RANDOM_WIDTH, -RANDOM_WIDTH,

+	      (unsigned short)screenInfo.screens[i]->width + RANDOM_WIDTH,

+	      (unsigned short)screenInfo.screens[i]->height + RANDOM_WIDTH,

+	      0, InputOutput, mask, attributes, 0, serverClient,

+	      wVisual (WindowTable[i]), &result);

+

+    if (cursor)

+	FreeResource (cursorID, RT_NONE);

+

+    if (!pWin)

+	return FALSE;

+

+    if (!AddResource(pWin->drawable.id, RT_WINDOW,

+		     (pointer)savedScreenInfo[i].pWindow))

+	return FALSE;

+

+    if (mask & CWBackPixmap)

+    {

+	MakeRootTile (pWin);

+	(*pWin->drawable.pScreen->ChangeWindowAttributes)(pWin, CWBackPixmap);

+    }

+    MapWindow(pWin, serverClient);

+#ifndef NOLOGOHACK

+    if (kind == SCREEN_IS_TILED && logoScreenSaver)

+	DrawLogo(pWin);

+#endif

+    return TRUE;

+}

+

+/*

+ * FindWindowWithOptional

+ *

+ * search ancestors of the given window for an entry containing

+ * a WindowOpt structure.  Assumptions:	 some parent will

+ * contain the structure.

+ */

+

+WindowPtr

+FindWindowWithOptional (WindowPtr w)

+{

+    do

+	w = w->parent;

+    while (!w->optional);

+    return w;

+}

+

+/*

+ * CheckWindowOptionalNeed

+ *

+ * check each optional entry in the given window to see if

+ * the value is satisfied by the default rules.	 If so,

+ * release the optional record

+ */

+

+void

+CheckWindowOptionalNeed (WindowPtr w)

+{

+    WindowOptPtr optional;

+    WindowOptPtr parentOptional;

+

+    if (!w->parent || !w->optional)

+	return;

+    optional = w->optional;

+    if (optional->dontPropagateMask != DontPropagateMasks[w->dontPropagate])

+	return;

+    if (optional->otherEventMasks != 0)

+	return;

+    if (optional->otherClients != NULL)

+	return;

+    if (optional->passiveGrabs != NULL)

+	return;

+    if (optional->userProps != NULL)

+	return;

+    if (optional->backingBitPlanes != ~0L)

+	return;

+    if (optional->backingPixel != 0)

+	return;

+    if (optional->boundingShape != NULL)

+	return;

+    if (optional->clipShape != NULL)

+	return;

+    if (optional->inputShape != NULL)

+	return;

+    if (optional->inputMasks != NULL)

+	return;

+    if (optional->deviceCursors != NULL)

+    {

+        DevCursNodePtr pNode = optional->deviceCursors;

+        while(pNode)

+        {

+            if (pNode->cursor != None)

+                return;

+            pNode = pNode->next;

+        }

+    }

+

+    parentOptional = FindWindowWithOptional(w)->optional;

+    if (optional->visual != parentOptional->visual)

+	return;

+    if (optional->cursor != None &&

+	(optional->cursor != parentOptional->cursor ||

+	 w->parent->cursorIsNone))

+	return;

+    if (optional->colormap != parentOptional->colormap)

+	return;

+    DisposeWindowOptional (w);

+}

+

+/*

+ * MakeWindowOptional

+ *

+ * create an optional record and initialize it with the default

+ * values.

+ */

+

+Bool

+MakeWindowOptional (WindowPtr pWin)

+{

+    WindowOptPtr optional;

+    WindowOptPtr parentOptional;

+

+    if (pWin->optional)

+	return TRUE;

+    optional = xalloc (sizeof (WindowOptRec));

+    if (!optional)

+	return FALSE;

+    optional->dontPropagateMask = DontPropagateMasks[pWin->dontPropagate];

+    optional->otherEventMasks = 0;

+    optional->otherClients = NULL;

+    optional->passiveGrabs = NULL;

+    optional->userProps = NULL;

+    optional->backingBitPlanes = ~0L;

+    optional->backingPixel = 0;

+    optional->boundingShape = NULL;

+    optional->clipShape = NULL;

+    optional->inputShape = NULL;

+    optional->inputMasks = NULL;

+    optional->deviceCursors = NULL;

+

+    parentOptional = FindWindowWithOptional(pWin)->optional;

+    optional->visual = parentOptional->visual;

+    if (!pWin->cursorIsNone)

+    {

+	optional->cursor = parentOptional->cursor;

+	optional->cursor->refcnt++;

+    }

+    else

+    {

+	optional->cursor = None;

+    }

+    optional->colormap = parentOptional->colormap;

+    pWin->optional = optional;

+    return TRUE;

+}

+

+/*

+ * Changes the cursor struct for the given device and the given window.

+ * A cursor that does not have a device cursor set will use whatever the

+ * standard cursor is for the window. If all devices have a cursor set,

+ * changing the window cursor (e.g. using XDefineCursor()) will not have any

+ * visible effect. Only when one of the device cursors is set to None again,

+ * this device's cursor will display the changed standard cursor.

+ * 

+ * CursorIsNone of the window struct is NOT modified if you set a device

+ * cursor. 

+ *

+ * Assumption: If there is a node for a device in the list, the device has a

+ * cursor. If the cursor is set to None, it is inherited by the parent.

+ */

+int

+ChangeWindowDeviceCursor(WindowPtr pWin, 

+                         DeviceIntPtr pDev, 

+                         CursorPtr pCursor) 

+{

+    DevCursNodePtr pNode, pPrev;

+    CursorPtr pOldCursor = NULL;

+    ScreenPtr pScreen;

+    WindowPtr pChild;

+

+    if (!pWin->optional && !MakeWindowOptional(pWin))

+        return BadAlloc;

+

+    /* 1) Check if window has device cursor set

+     *  Yes: 1.1) swap cursor with given cursor if parent does not have same

+     *            cursor, free old cursor

+     *       1.2) free old cursor, use parent cursor

+     *  No: 1.1) add node to beginning of list.

+     *      1.2) add cursor to node if parent does not have same cursor

+     *      1.3) use parent cursor if parent does not have same cursor

+     *  2) Patch up children if child has a devcursor

+     *  2.1) if child has cursor None, it inherited from parent, set to old

+     *  cursor

+     *  2.2) if child has same cursor as new cursor, remove and set to None

+     */

+

+    pScreen = pWin->drawable.pScreen;

+

+    if (WindowSeekDeviceCursor(pWin, pDev, &pNode, &pPrev))

+    {

+        /* has device cursor */

+

+        if (pNode->cursor == pCursor)

+            return Success;

+

+        pOldCursor = pNode->cursor;

+

+        if (!pCursor) /* remove from list */

+        {

+                if(pPrev)

+                    pPrev->next = pNode->next;

+                else

+                    /* first item in list */

+                    pWin->optional->deviceCursors = pNode->next;

+

+            xfree(pNode);

+            goto out;

+        }

+

+    } else

+    {

+        /* no device cursor yet */

+        DevCursNodePtr pNewNode;

+

+        if (!pCursor)

+            return Success;

+

+        pNewNode = xalloc(sizeof(DevCursNodeRec));

+        pNewNode->dev = pDev;

+        pNewNode->next = pWin->optional->deviceCursors;

+        pWin->optional->deviceCursors = pNewNode;

+        pNode = pNewNode;

+

+    }

+

+    if (pCursor && WindowParentHasDeviceCursor(pWin, pDev, pCursor))

+        pNode->cursor = None;

+    else

+    {

+        pNode->cursor = pCursor;

+        pCursor->refcnt++;

+    }

+

+    pNode = pPrev = NULL;

+    /* fix up children */

+    for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)

+    {

+        if (WindowSeekDeviceCursor(pChild, pDev, &pNode, &pPrev))

+        {

+            if (pNode->cursor == None) /* inherited from parent */

+            {

+                pNode->cursor = pOldCursor;

+                pOldCursor->refcnt++;

+            } else if (pNode->cursor == pCursor)

+            {

+                pNode->cursor = None;

+                FreeCursor(pCursor, (Cursor)0); /* fix up refcnt */

+            }

+        }

+    }

+

+out:

+    if (pWin->realized)

+        WindowHasNewCursor(pWin);

+

+    if (pOldCursor)

+        FreeCursor(pOldCursor, (Cursor)0);

+

+    /* FIXME: We SHOULD check for an error value here XXX  

+       (comment taken from ChangeWindowAttributes) */

+    (*pScreen->ChangeWindowAttributes)(pWin, CWCursor);

+

+    return Success;

+}

+

+/* Get device cursor for given device or None if none is set */

+CursorPtr

+WindowGetDeviceCursor(WindowPtr pWin, DeviceIntPtr pDev)

+{

+    DevCursorList pList;

+

+    if (!pWin->optional || !pWin->optional->deviceCursors)

+        return NULL;

+

+    pList = pWin->optional->deviceCursors;

+

+    while(pList)

+    {

+        if (pList->dev == pDev)

+        {

+            if (pList->cursor == None) /* inherited from parent */

+                return WindowGetDeviceCursor(pWin->parent, pDev);

+            else

+                return pList->cursor;

+        }

+        pList = pList->next;

+    }

+    return NULL;

+}

+

+/* Searches for a DevCursorNode for the given window and device. If one is

+ * found, return True and set pNode and pPrev to the node and to the node

+ * before the node respectively. Otherwise return False.

+ * If the device is the first in list, pPrev is set to NULL.

+ */

+static Bool 

+WindowSeekDeviceCursor(WindowPtr pWin, 

+                       DeviceIntPtr pDev, 

+                       DevCursNodePtr* pNode, 

+                       DevCursNodePtr* pPrev)

+{

+    DevCursorList pList;

+

+    if (!pWin->optional)

+        return FALSE;

+

+    pList = pWin->optional->deviceCursors;

+

+    if (pList && pList->dev == pDev)

+    {

+        *pNode = pList;

+        *pPrev = NULL;

+        return TRUE;

+    }

+

+    while(pList)

+    {

+        if (pList->next)

+        {

+            if (pList->next->dev == pDev)

+            {

+                *pNode = pList->next;

+                *pPrev = pList;

+                return TRUE;

+            }

+        }

+        pList = pList->next;

+    }

+    return FALSE;

+}

+

+/* Return True if a parent has the same device cursor set or False if

+ * otherwise 

+ */ 

+static Bool 

+WindowParentHasDeviceCursor(WindowPtr pWin, 

+                            DeviceIntPtr pDev, 

+                            CursorPtr pCursor)

+{

+    WindowPtr pParent;

+    DevCursNodePtr pParentNode, pParentPrev;

+

+    pParent = pWin->parent;

+    while(pParent)

+    {

+        if (WindowSeekDeviceCursor(pParent, pDev, 

+                    &pParentNode, &pParentPrev))

+        {

+            /* if there is a node in the list, the win has a dev cursor */

+            if (!pParentNode->cursor) /* inherited. loop needs to cont. */

+            {

+            } else if (pParentNode->cursor == pCursor) /* inherit */

+                return TRUE;

+            else  /* different cursor */

+                return FALSE;

+        } 

+        else 

+            /* parent does not have a device cursor for our device */

+            return FALSE;

+    }

+    return FALSE;

+}

+

+#ifndef NOLOGOHACK

+static void

+DrawLogo(WindowPtr pWin)

+{

+    DrawablePtr pDraw;

+    ScreenPtr pScreen;

+    int x, y;

+    unsigned int width, height, size;

+    GC *pGC;

+    int rc, thin, gap, d31;

+    DDXPointRec poly[4];

+    ChangeGCVal fore[2], back[2];

+    xrgb rgb[2];

+    BITS32 fmask, bmask;

+    ColormapPtr cmap;

+

+    pDraw = (DrawablePtr)pWin;

+    pScreen = pDraw->pScreen;

+    x = -pWin->origin.x;

+    y = -pWin->origin.y;

+    width = pScreen->width;

+    height = pScreen->height;

+    pGC = GetScratchGC(pScreen->rootDepth, pScreen);

+    if (!pGC)

+	return;

+

+    if ((rand() % 100) <= 17) /* make the probability for white fairly low */

+	fore[0].val = pScreen->whitePixel;

+    else

+	fore[0].val = pScreen->blackPixel;

+    if (pWin->backgroundState == BackgroundPixel) {

+	rc = dixLookupResourceByType((pointer *)&cmap, wColormap(pWin),

+				     RT_COLORMAP, serverClient, DixReadAccess);

+	if (rc == Success) {

+	    Pixel querypixels[2];

+

+	    querypixels[0] = fore[0].val;

+	    querypixels[1] = pWin->background.pixel;

+	    QueryColors(cmap, 2, querypixels, rgb);

+	    if ((rgb[0].red == rgb[1].red) &&

+		(rgb[0].green == rgb[1].green) &&

+		(rgb[0].blue == rgb[1].blue)) {

+		if (fore[0].val == pScreen->blackPixel)

+		    fore[0].val = pScreen->whitePixel;

+		else

+		    fore[0].val = pScreen->blackPixel;

+	    }

+	}

+    }

+    fore[1].val = FillSolid;

+    fmask = GCForeground|GCFillStyle;

+    if (pWin->backgroundState == BackgroundPixel) {

+	back[0].val = pWin->background.pixel;

+	back[1].val = FillSolid;

+	bmask = GCForeground|GCFillStyle;

+    } else {

+	back[0].val = 0;

+	back[1].val = 0;

+	dixChangeGC(NullClient, pGC, GCTileStipXOrigin|GCTileStipYOrigin,

+		    NULL, back);

+	back[0].val = FillTiled;

+	back[1].ptr = pWin->background.pixmap;

+	bmask = GCFillStyle|GCTile;

+    }

+

+    /* should be the same as the reference function XmuDrawLogo() */

+

+    size = width;

+    if (height < width)

+	 size = height;

+    size = RANDOM_WIDTH + rand() % (size - RANDOM_WIDTH);

+    size &= ~1;

+    x += rand() % (width - size);

+    y += rand() % (height - size);

+

+/*

+ * Draw what will be the thin strokes.

+ *

+ *           -----

+ *          /    /

+ *         /    /

+ *        /    /

+ *       /    /

+ *      /____/

+ *           d

+ *

+ * Point d is 9/44 (~1/5) of the way across.

+ */

+

+    thin = (size / 11);

+    if (thin < 1) thin = 1;

+    gap = (thin+3) / 4;

+    d31 = thin + thin + gap;

+    poly[0].x = x + size;	       poly[0].y = y;

+    poly[1].x = x + size-d31;	       poly[1].y = y;

+    poly[2].x = x + 0;		       poly[2].y = y + size;

+    poly[3].x = x + d31;	       poly[3].y = y + size;

+    dixChangeGC(NullClient, pGC, fmask, NULL, fore);

+    ValidateGC(pDraw, pGC);

+    (*pGC->ops->FillPolygon)(pDraw, pGC, Convex, CoordModeOrigin, 4, poly);

+

+/*

+ * Erase area not needed for lower thin stroke.

+ *

+ *           ------

+ *          /	  /

+ *         /  __ /

+ *        /  /	/

+ *       /  /  /

+ *      /__/__/

+ */

+

+    poly[0].x = x + d31/2;			 poly[0].y = y + size;

+    poly[1].x = x + size / 2;			 poly[1].y = y + size/2;

+    poly[2].x = x + (size/2)+(d31-(d31/2));	 poly[2].y = y + size/2;

+    poly[3].x = x + d31;			 poly[3].y = y + size;

+    dixChangeGC(NullClient, pGC, bmask, NULL, back);

+    ValidateGC(pDraw, pGC);

+    (*pGC->ops->FillPolygon)(pDraw, pGC, Convex, CoordModeOrigin, 4, poly);

+

+/*

+ * Erase area not needed for upper thin stroke.

+ *

+ *	     ------

+ *	    /  /  /

+ *	   /--/	 /

+ *	  /	/

+ *	 /     /

+ *	/_____/

+ */

+

+    poly[0].x = x + size - d31/2;		 poly[0].y = y;

+    poly[1].x = x + size / 2;			 poly[1].y = y + size/2;

+    poly[2].x = x + (size/2)-(d31-(d31/2));	 poly[2].y = y + size/2;

+    poly[3].x = x + size - d31;			 poly[3].y = y;

+    ValidateGC(pDraw, pGC);

+    (*pGC->ops->FillPolygon)(pDraw, pGC, Convex, CoordModeOrigin, 4, poly);

+

+/*

+ * Draw thick stroke.

+ * Point b is 1/4 of the way across.

+ *

+ *      b

+ * -----

+ * \	\

+ *  \	 \

+ *   \	  \

+ *    \	   \

+ *     \____\

+ */

+

+    poly[0].x = x;		       poly[0].y = y;

+    poly[1].x = x + size/4;	       poly[1].y = y;

+    poly[2].x = x + size;	       poly[2].y = y + size;

+    poly[3].x = x + size - size/4;     poly[3].y = y + size;

+    dixChangeGC(NullClient, pGC, fmask, NULL, fore);

+    ValidateGC(pDraw, pGC);

+    (*pGC->ops->FillPolygon)(pDraw, pGC, Convex, CoordModeOrigin, 4, poly);

+

+/*

+ * Erase to create gap.

+ *

+ *	    /

+ *	   /

+ *	  /

+ *	 /

+ *	/

+ */

+

+    poly[0].x = x + size- thin;	      poly[0].y = y;

+    poly[1].x = x + size-( thin+gap);  poly[1].y = y;

+    poly[2].x = x + thin;	      poly[2].y = y + size;

+    poly[3].x = x + thin + gap;	      poly[3].y = y + size;

+    dixChangeGC(NullClient, pGC, bmask, NULL, back);

+    ValidateGC(pDraw, pGC);

+    (*pGC->ops->FillPolygon)(pDraw, pGC, Convex, CoordModeOrigin, 4, poly);

+

+    FreeScratchGC(pGC);

+}

+

+#endif