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Diffstat (limited to 'nx-X11/programs/Xserver/hw/nxagent/X/NXmiwindow.c')
| -rw-r--r-- | nx-X11/programs/Xserver/hw/nxagent/X/NXmiwindow.c | 1222 |
1 files changed, 1222 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/nxagent/X/NXmiwindow.c b/nx-X11/programs/Xserver/hw/nxagent/X/NXmiwindow.c new file mode 100644 index 000000000..1731e0753 --- /dev/null +++ b/nx-X11/programs/Xserver/hw/nxagent/X/NXmiwindow.c @@ -0,0 +1,1222 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/. */ +/* */ +/* NXAGENT, NX protocol compression and NX extensions to this software */ +/* are copyright of NoMachine. Redistribution and use of the present */ +/* software is allowed according to terms specified in the file LICENSE */ +/* which comes in the source distribution. */ +/* */ +/* Check http://www.nomachine.com/licensing.html for applicability. */ +/* */ +/* NX and NoMachine are trademarks of NoMachine S.r.l. */ +/* */ +/* All rights reserved. */ +/* */ +/**************************************************************************/ + +/* $XFree86: xc/programs/Xserver/mi/miwindow.c,v 1.9tsi Exp $ */ +/*********************************************************** + +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. + +******************************************************************/ +/* $Xorg: miwindow.c,v 1.4 2001/02/09 02:05:22 xorgcvs Exp $ */ +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <X11/X.h> +#include "regionstr.h" +#include "region.h" +#include "mi.h" +#include "windowstr.h" +#include "scrnintstr.h" +#include "pixmapstr.h" +#include "mivalidate.h" + +void +miClearToBackground(pWin, x, y, w, h, generateExposures) + WindowPtr pWin; + int x,y; + int w,h; + Bool generateExposures; +{ + BoxRec box; + RegionRec reg; + RegionPtr pBSReg = NullRegion; + ScreenPtr pScreen; + BoxPtr extents; + int x1, y1, x2, y2; + + /* compute everything using ints to avoid overflow */ + + x1 = pWin->drawable.x + x; + y1 = pWin->drawable.y + y; + if (w) + x2 = x1 + (int) w; + else + x2 = x1 + (int) pWin->drawable.width - (int) x; + if (h) + y2 = y1 + h; + else + y2 = y1 + (int) pWin->drawable.height - (int) y; + + extents = &pWin->clipList.extents; + + /* clip the resulting rectangle to the window clipList extents. This + * makes sure that the result will fit in a box, given that the + * screen is < 32768 on a side. + */ + + if (x1 < extents->x1) + x1 = extents->x1; + if (x2 > extents->x2) + x2 = extents->x2; + if (y1 < extents->y1) + y1 = extents->y1; + if (y2 > extents->y2) + y2 = extents->y2; + + if (x2 <= x1 || y2 <= y1) + { + x2 = x1 = 0; + y2 = y1 = 0; + } + + box.x1 = x1; + box.x2 = x2; + box.y1 = y1; + box.y2 = y2; + + pScreen = pWin->drawable.pScreen; + REGION_INIT(pScreen, ®, &box, 1); + if (pWin->backStorage) + { + /* + * If the window has backing-store on, call through the + * ClearToBackground vector to handle the special semantics + * (i.e. things backing store is to be cleared out and + * an Expose event is to be generated for those areas in backing + * store if generateExposures is TRUE). + */ + pBSReg = (* pScreen->ClearBackingStore)(pWin, x, y, w, h, + generateExposures); + } + + REGION_INTERSECT(pScreen, ®, ®, &pWin->clipList); + if (generateExposures) + (*pScreen->WindowExposures)(pWin, ®, pBSReg); + else if (pWin->backgroundState != None) + (*pScreen->PaintWindowBackground)(pWin, ®, PW_BACKGROUND); + REGION_UNINIT(pScreen, ®); + if (pBSReg) + REGION_DESTROY(pScreen, pBSReg); +} + +/* + * For SaveUnders using backing-store. The idea is that when a window is mapped + * with saveUnder set TRUE, any windows it obscures will have its backing + * store turned on setting the DIXsaveUnder bit, + * The backing-store code must be written to allow for this + */ + +/*- + *----------------------------------------------------------------------- + * miCheckSubSaveUnder -- + * Check all the inferiors of a window for coverage by saveUnder + * windows. Called from ChangeSaveUnder and CheckSaveUnder. + * This code is very inefficient. + * + * Results: + * TRUE if any windows need to have backing-store removed. + * + * Side Effects: + * Windows may have backing-store turned on or off. + * + *----------------------------------------------------------------------- + */ +static Bool +miCheckSubSaveUnder( + register WindowPtr pParent, /* Parent to check */ + WindowPtr pFirst, /* first reconfigured window */ + RegionPtr pRegion) /* Initial area obscured by saveUnder */ +{ + register WindowPtr pChild; /* Current child */ + register ScreenPtr pScreen; /* Screen to use */ + RegionRec SubRegion; /* Area of children obscured */ + Bool res = FALSE; /* result */ + Bool subInited=FALSE;/* SubRegion initialized */ + + pScreen = pParent->drawable.pScreen; + if ( (pChild = pParent->firstChild) ) + { + /* + * build region above first changed window + */ + + for (; pChild != pFirst; pChild = pChild->nextSib) + if (pChild->viewable && pChild->saveUnder) + REGION_UNION(pScreen, pRegion, pRegion, &pChild->borderSize); + + /* + * check region below and including first changed window + */ + + for (; pChild; pChild = pChild->nextSib) + { + if (pChild->viewable) + { + /* + * don't save under nephew/niece windows; + * use a separate region + */ + + if (pChild->firstChild) + { + if (!subInited) + { + REGION_NULL(pScreen, &SubRegion); + subInited = TRUE; + } + REGION_COPY(pScreen, &SubRegion, pRegion); + res |= miCheckSubSaveUnder(pChild, pChild->firstChild, + &SubRegion); + } + else + { + res |= miCheckSubSaveUnder(pChild, pChild->firstChild, + pRegion); + } + + if (pChild->saveUnder) + REGION_UNION(pScreen, pRegion, pRegion, &pChild->borderSize); + } + } + + if (subInited) + REGION_UNINIT(pScreen, &SubRegion); + } + + /* + * Check the state of this window. DIX save unders are + * enabled for viewable windows with some client expressing + * exposure interest and which intersect the save under region + */ + + if (pParent->viewable && + ((pParent->eventMask | wOtherEventMasks(pParent)) & ExposureMask) && + REGION_NOTEMPTY(pScreen, &pParent->borderSize) && + RECT_IN_REGION(pScreen, pRegion, REGION_EXTENTS(pScreen, + &pParent->borderSize)) != rgnOUT) + { + if (!pParent->DIXsaveUnder) + { + pParent->DIXsaveUnder = TRUE; + (*pScreen->ChangeWindowAttributes) (pParent, CWBackingStore); + } + } + else + { + if (pParent->DIXsaveUnder) + { + res = TRUE; + pParent->DIXsaveUnder = FALSE; + } + } + return res; +} + + +/*- + *----------------------------------------------------------------------- + * miChangeSaveUnder -- + * Change the save-under state of a tree of windows. Called when + * a window with saveUnder TRUE is mapped/unmapped/reconfigured. + * + * Results: + * TRUE if any windows need to have backing-store removed (which + * means that PostChangeSaveUnder needs to be called later to + * finish the job). + * + * Side Effects: + * Windows may have backing-store turned on or off. + * + *----------------------------------------------------------------------- + */ +Bool +miChangeSaveUnder(pWin, first) + register WindowPtr pWin; + WindowPtr first; /* First window to check. + * Used when pWin was restacked */ +{ + RegionRec rgn; /* Area obscured by saveUnder windows */ + register ScreenPtr pScreen; + Bool res; + + if (!deltaSaveUndersViewable && !numSaveUndersViewable) + return FALSE; + numSaveUndersViewable += deltaSaveUndersViewable; + deltaSaveUndersViewable = 0; + pScreen = pWin->drawable.pScreen; + REGION_NULL(pScreen, &rgn); + res = miCheckSubSaveUnder (pWin->parent, + pWin->saveUnder ? first : pWin->nextSib, + &rgn); + REGION_UNINIT(pScreen, &rgn); + return res; +} + +/*- + *----------------------------------------------------------------------- + * miPostChangeSaveUnder -- + * Actually turn backing-store off for those windows that no longer + * need to have it on. + * + * Results: + * None. + * + * Side Effects: + * Backing-store and SAVE_UNDER_CHANGE_BIT are turned off for those + * windows affected. + * + *----------------------------------------------------------------------- + */ +void +miPostChangeSaveUnder(pWin, pFirst) + WindowPtr pWin; + WindowPtr pFirst; +{ + register WindowPtr pParent, pChild; + ChangeWindowAttributesProcPtr ChangeWindowAttributes; + + if (!(pParent = pWin->parent)) + return; + ChangeWindowAttributes = pParent->drawable.pScreen->ChangeWindowAttributes; + if (!pParent->DIXsaveUnder && + (pParent->backingStore == NotUseful) && pParent->backStorage) + (*ChangeWindowAttributes)(pParent, CWBackingStore); + if (!(pChild = pFirst)) + return; + while (1) + { + if (!pChild->DIXsaveUnder && + (pChild->backingStore == NotUseful) && pChild->backStorage) + (*ChangeWindowAttributes)(pChild, CWBackingStore); + if (pChild->firstChild) + { + pChild = pChild->firstChild; + continue; + } + while (!pChild->nextSib) + { + pChild = pChild->parent; + if (pChild == pParent) + return; + } + pChild = pChild->nextSib; + } +} + +void +miMarkWindow(pWin) + register WindowPtr pWin; +{ + register ValidatePtr val; + + if (pWin->valdata) + return; + val = (ValidatePtr)xnfalloc(sizeof(ValidateRec)); + val->before.oldAbsCorner.x = pWin->drawable.x; + val->before.oldAbsCorner.y = pWin->drawable.y; + val->before.borderVisible = NullRegion; + val->before.resized = FALSE; + pWin->valdata = val; +} + +Bool +miMarkOverlappedWindows(pWin, pFirst, ppLayerWin) + WindowPtr pWin; + WindowPtr pFirst; + WindowPtr *ppLayerWin; +{ + register BoxPtr box; + register WindowPtr pChild, pLast; + Bool anyMarked = FALSE; + MarkWindowProcPtr MarkWindow = pWin->drawable.pScreen->MarkWindow; + ScreenPtr pScreen; + + pScreen = pWin->drawable.pScreen; + + /* single layered systems are easy */ + if (ppLayerWin) *ppLayerWin = pWin; + + if (pWin == pFirst) + { + /* Blindly mark pWin and all of its inferiors. This is a slight + * overkill if there are mapped windows that outside pWin's border, + * but it's better than wasting time on RectIn checks. + */ + pChild = pWin; + while (1) + { + if (pChild->viewable) + { + if (REGION_BROKEN (pScreen, &pChild->winSize)) + SetWinSize (pChild); + if (REGION_BROKEN (pScreen, &pChild->borderSize)) + SetBorderSize (pChild); + (* MarkWindow)(pChild); + if (pChild->firstChild) + { + pChild = pChild->firstChild; + continue; + } + } + while (!pChild->nextSib && (pChild != pWin)) + pChild = pChild->parent; + if (pChild == pWin) + break; + pChild = pChild->nextSib; + } + anyMarked = TRUE; + pFirst = pFirst->nextSib; + } + if ( (pChild = pFirst) ) + { + box = REGION_EXTENTS(pChild->drawable.pScreen, &pWin->borderSize); + pLast = pChild->parent->lastChild; + while (1) + { + if (pChild->viewable) + { + if (REGION_BROKEN (pScreen, &pChild->winSize)) + SetWinSize (pChild); + if (REGION_BROKEN (pScreen, &pChild->borderSize)) + SetBorderSize (pChild); + if (RECT_IN_REGION(pScreen, &pChild->borderSize, box)) + { + (* MarkWindow)(pChild); + anyMarked = TRUE; + if (pChild->firstChild) + { + pChild = pChild->firstChild; + continue; + } + } + } + while (!pChild->nextSib && (pChild != pLast)) + pChild = pChild->parent; + if (pChild == pLast) + break; + pChild = pChild->nextSib; + } + } + if (anyMarked) + (* MarkWindow)(pWin->parent); + return anyMarked; +} + +/***** + * miHandleValidateExposures(pWin) + * starting at pWin, draw background in any windows that have exposure + * regions, translate the regions, restore any backing store, + * and then send any regions still exposed to the client + *****/ +void +miHandleValidateExposures(pWin) + WindowPtr pWin; +{ + register WindowPtr pChild; + register ValidatePtr val; + ScreenPtr pScreen; + WindowExposuresProcPtr WindowExposures; + + pScreen = pWin->drawable.pScreen; + + pChild = pWin; + WindowExposures = pChild->drawable.pScreen->WindowExposures; + while (1) + { + if ( (val = pChild->valdata) ) + { + if (REGION_NOTEMPTY(pScreen, &val->after.borderExposed)) + (*pChild->drawable.pScreen->PaintWindowBorder)(pChild, + &val->after.borderExposed, + PW_BORDER); + REGION_UNINIT(pScreen, &val->after.borderExposed); + (*WindowExposures)(pChild, &val->after.exposed, NullRegion); + REGION_UNINIT(pScreen, &val->after.exposed); + xfree(val); + pChild->valdata = (ValidatePtr)NULL; + if (pChild->firstChild) + { + pChild = pChild->firstChild; + continue; + } + } + while (!pChild->nextSib && (pChild != pWin)) + pChild = pChild->parent; + if (pChild == pWin) + break; + pChild = pChild->nextSib; + } +} + +void +miMoveWindow(pWin, x, y, pNextSib, kind) + register WindowPtr pWin; + int x,y; + WindowPtr pNextSib; + VTKind kind; +{ + WindowPtr pParent; + Bool WasViewable = (Bool)(pWin->viewable); + short bw; + RegionPtr oldRegion = NULL; + DDXPointRec oldpt; + Bool anyMarked = FALSE; + register ScreenPtr pScreen; + WindowPtr windowToValidate; +#ifdef DO_SAVE_UNDERS + Bool dosave = FALSE; +#endif + WindowPtr pLayerWin; + + /* if this is a root window, can't be moved */ + if (!(pParent = pWin->parent)) + return ; + pScreen = pWin->drawable.pScreen; + bw = wBorderWidth (pWin); + + oldpt.x = pWin->drawable.x; + oldpt.y = pWin->drawable.y; + if (WasViewable) + { + oldRegion = REGION_CREATE(pScreen, NullBox, 1); + REGION_COPY(pScreen, oldRegion, &pWin->borderClip); + anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin, &pLayerWin); + } + pWin->origin.x = x + (int)bw; + pWin->origin.y = y + (int)bw; + x = pWin->drawable.x = pParent->drawable.x + x + (int)bw; + y = pWin->drawable.y = pParent->drawable.y + y + (int)bw; + + SetWinSize (pWin); + SetBorderSize (pWin); + + (*pScreen->PositionWindow)(pWin, x, y); + + windowToValidate = MoveWindowInStack(pWin, pNextSib); + + ResizeChildrenWinSize(pWin, x - oldpt.x, y - oldpt.y, 0, 0); + + if (WasViewable) + { + if (pLayerWin == pWin) + anyMarked |= (*pScreen->MarkOverlappedWindows) + (pWin, windowToValidate, (WindowPtr *)NULL); + else + anyMarked |= (*pScreen->MarkOverlappedWindows) + (pWin, pLayerWin, (WindowPtr *)NULL); + +#ifdef DO_SAVE_UNDERS + if (DO_SAVE_UNDERS(pWin)) + { + dosave = (*pScreen->ChangeSaveUnder)(pLayerWin, windowToValidate); + } +#endif /* DO_SAVE_UNDERS */ + + if (anyMarked) + { + (*pScreen->ValidateTree)(pLayerWin->parent, NullWindow, kind); + (* pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, oldRegion); + REGION_DESTROY(pScreen, oldRegion); + /* XXX need to retile border if ParentRelative origin */ + (*pScreen->HandleExposures)(pLayerWin->parent); + } +#ifdef DO_SAVE_UNDERS + if (dosave) + (*pScreen->PostChangeSaveUnder)(pLayerWin, windowToValidate); +#endif /* DO_SAVE_UNDERS */ + if (anyMarked && pScreen->PostValidateTree) + (*pScreen->PostValidateTree)(pLayerWin->parent, NullWindow, kind); + } + if (pWin->realized) + WindowsRestructured (); +} + + +/* + * pValid is a region of the screen which has been + * successfully copied -- recomputed exposed regions for affected windows + */ + +static int +miRecomputeExposures ( + register WindowPtr pWin, + pointer value) /* must conform to VisitWindowProcPtr */ +{ + register ScreenPtr pScreen; + RegionPtr pValid = (RegionPtr)value; + + if (pWin->valdata) + { + pScreen = pWin->drawable.pScreen; + /* + * compute exposed regions of this window + */ + REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed, + &pWin->clipList, pValid); + /* + * compute exposed regions of the border + */ + REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed, + &pWin->borderClip, &pWin->winSize); + REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed, + &pWin->valdata->after.borderExposed, pValid); + return WT_WALKCHILDREN; + } + return WT_NOMATCH; +} + +void +miSlideAndSizeWindow(pWin, x, y, w, h, pSib) + register WindowPtr pWin; + int x,y; + unsigned int w, h; + WindowPtr pSib; +{ + WindowPtr pParent; + Bool WasViewable = (Bool)(pWin->viewable); + unsigned short width = pWin->drawable.width, + height = pWin->drawable.height; + short oldx = pWin->drawable.x, + oldy = pWin->drawable.y; + int bw = wBorderWidth (pWin); + short dw, dh; + DDXPointRec oldpt; + RegionPtr oldRegion = NULL; + Bool anyMarked = FALSE; + register ScreenPtr pScreen; + WindowPtr pFirstChange; + register WindowPtr pChild; + RegionPtr gravitate[StaticGravity + 1]; + register unsigned g; + int nx, ny; /* destination x,y */ + int newx, newy; /* new inner window position */ + RegionPtr pRegion = NULL; + RegionPtr destClip; /* portions of destination already written */ + RegionPtr oldWinClip = NULL; /* old clip list for window */ + RegionPtr borderVisible = NullRegion; /* visible area of the border */ + RegionPtr bsExposed = NullRegion; /* backing store exposures */ + Bool shrunk = FALSE; /* shrunk in an inner dimension */ + Bool moved = FALSE; /* window position changed */ +#ifdef DO_SAVE_UNDERS + Bool dosave = FALSE; +#endif + WindowPtr pLayerWin; + + /* if this is a root window, can't be resized */ + if (!(pParent = pWin->parent)) + return ; + + pScreen = pWin->drawable.pScreen; + newx = pParent->drawable.x + x + bw; + newy = pParent->drawable.y + y + bw; + if (WasViewable) + { + anyMarked = FALSE; + /* + * save the visible region of the window + */ + oldRegion = REGION_CREATE(pScreen, NullBox, 1); + REGION_COPY(pScreen, oldRegion, &pWin->winSize); + + /* + * categorize child windows into regions to be moved + */ + for (g = 0; g <= StaticGravity; g++) + gravitate[g] = (RegionPtr) NULL; + for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) + { + g = pChild->winGravity; + if (g != UnmapGravity) + { + if (!gravitate[g]) + gravitate[g] = REGION_CREATE(pScreen, NullBox, 1); + REGION_UNION(pScreen, gravitate[g], + gravitate[g], &pChild->borderClip); + } + else + { + UnmapWindow(pChild, TRUE); + anyMarked = TRUE; + } + } + anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pWin, + &pLayerWin); + + oldWinClip = NULL; + if (pWin->bitGravity != ForgetGravity) + { + oldWinClip = REGION_CREATE(pScreen, NullBox, 1); + REGION_COPY(pScreen, oldWinClip, &pWin->clipList); + } + /* + * if the window is changing size, borderExposed + * can't be computed correctly without some help. + */ + if (pWin->drawable.height > h || pWin->drawable.width > w) + shrunk = TRUE; + + if (newx != oldx || newy != oldy) + moved = TRUE; + + if ((pWin->drawable.height != h || pWin->drawable.width != w) && + HasBorder (pWin)) + { + borderVisible = REGION_CREATE(pScreen, NullBox, 1); + /* for tiled borders, we punt and draw the whole thing */ + if (pWin->borderIsPixel || !moved) + { + if (shrunk || moved) + REGION_SUBTRACT(pScreen, borderVisible, + &pWin->borderClip, + &pWin->winSize); + else + REGION_COPY(pScreen, borderVisible, + &pWin->borderClip); + } + } + } + pWin->origin.x = x + bw; + pWin->origin.y = y + bw; + pWin->drawable.height = h; + pWin->drawable.width = w; + + x = pWin->drawable.x = newx; + y = pWin->drawable.y = newy; + + SetWinSize (pWin); + SetBorderSize (pWin); + + dw = (int)w - (int)width; + dh = (int)h - (int)height; + ResizeChildrenWinSize(pWin, x - oldx, y - oldy, dw, dh); + + /* let the hardware adjust background and border pixmaps, if any */ + (*pScreen->PositionWindow)(pWin, x, y); + + pFirstChange = MoveWindowInStack(pWin, pSib); + + if (WasViewable) + { + pRegion = REGION_CREATE(pScreen, NullBox, 1); + if (pWin->backStorage) + REGION_COPY(pScreen, pRegion, &pWin->clipList); + + if (pLayerWin == pWin) + anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pFirstChange, + (WindowPtr *)NULL); + else + anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pLayerWin, + (WindowPtr *)NULL); + + if (pWin->valdata) + { + pWin->valdata->before.resized = TRUE; + pWin->valdata->before.borderVisible = borderVisible; + } + +#ifdef DO_SAVE_UNDERS + if (DO_SAVE_UNDERS(pWin)) + { + dosave = (*pScreen->ChangeSaveUnder)(pLayerWin, pFirstChange); + } +#endif /* DO_SAVE_UNDERS */ + + if (anyMarked) + (*pScreen->ValidateTree)(pLayerWin->parent, pFirstChange, VTOther); + /* + * the entire window is trashed unless bitGravity + * recovers portions of it + */ + REGION_COPY(pScreen, &pWin->valdata->after.exposed, &pWin->clipList); + } + + GravityTranslate (x, y, oldx, oldy, dw, dh, pWin->bitGravity, &nx, &ny); + + if (pWin->backStorage && + ((pWin->backingStore == Always) || WasViewable)) + { + if (!WasViewable) + pRegion = &pWin->clipList; /* a convenient empty region */ + if (pWin->bitGravity == ForgetGravity) + bsExposed = (*pScreen->TranslateBackingStore) + (pWin, 0, 0, NullRegion, oldx, oldy); + else + { + bsExposed = (*pScreen->TranslateBackingStore) + (pWin, nx - x, ny - y, pRegion, oldx, oldy); + } + } + + if (WasViewable) + { + /* avoid the border */ + if (HasBorder (pWin)) + { + int offx, offy, dx, dy; + + /* kruft to avoid double translates for each gravity */ + offx = 0; + offy = 0; + for (g = 0; g <= StaticGravity; g++) + { + if (!gravitate[g]) + continue; + + /* align winSize to gravitate[g]. + * winSize is in new coordinates, + * gravitate[g] is still in old coordinates */ + GravityTranslate (x, y, oldx, oldy, dw, dh, g, &nx, &ny); + + dx = (oldx - nx) - offx; + dy = (oldy - ny) - offy; + if (dx || dy) + { + REGION_TRANSLATE(pScreen, &pWin->winSize, dx, dy); + offx += dx; + offy += dy; + } + REGION_INTERSECT(pScreen, gravitate[g], gravitate[g], + &pWin->winSize); + } + /* get winSize back where it belongs */ + if (offx || offy) + REGION_TRANSLATE(pScreen, &pWin->winSize, -offx, -offy); + } + /* + * add screen bits to the appropriate bucket + */ + + if (oldWinClip) + { + /* + * clip to new clipList + */ + REGION_COPY(pScreen, pRegion, oldWinClip); + REGION_TRANSLATE(pScreen, pRegion, nx - oldx, ny - oldy); + REGION_INTERSECT(pScreen, oldWinClip, pRegion, &pWin->clipList); + /* + * don't step on any gravity bits which will be copied after this + * region. Note -- this assumes that the regions will be copied + * in gravity order. + */ + for (g = pWin->bitGravity + 1; g <= StaticGravity; g++) + { + if (gravitate[g]) + REGION_SUBTRACT(pScreen, oldWinClip, oldWinClip, + gravitate[g]); + } + REGION_TRANSLATE(pScreen, oldWinClip, oldx - nx, oldy - ny); + g = pWin->bitGravity; + if (!gravitate[g]) + gravitate[g] = oldWinClip; + else + { + REGION_UNION(pScreen, gravitate[g], gravitate[g], oldWinClip); + REGION_DESTROY(pScreen, oldWinClip); + } + } + + /* + * move the bits on the screen + */ + + destClip = NULL; + + for (g = 0; g <= StaticGravity; g++) + { + if (!gravitate[g]) + continue; + + GravityTranslate (x, y, oldx, oldy, dw, dh, g, &nx, &ny); + + oldpt.x = oldx + (x - nx); + oldpt.y = oldy + (y - ny); + + /* Note that gravitate[g] is *translated* by CopyWindow */ + + /* only copy the remaining useful bits */ + + REGION_INTERSECT(pScreen, gravitate[g], gravitate[g], oldRegion); + + /* clip to not overwrite already copied areas */ + + if (destClip) { + REGION_TRANSLATE(pScreen, destClip, oldpt.x - x, oldpt.y - y); + REGION_SUBTRACT(pScreen, gravitate[g], gravitate[g], destClip); + REGION_TRANSLATE(pScreen, destClip, x - oldpt.x, y - oldpt.y); + } + + /* and move those bits */ + + if (oldpt.x != x || oldpt.y != y +#ifdef COMPOSITE + || pWin->redirectDraw +#endif + ) + { + (*pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, gravitate[g]); + } + + /* remove any overwritten bits from the remaining useful bits */ + + REGION_SUBTRACT(pScreen, oldRegion, oldRegion, gravitate[g]); + + /* + * recompute exposed regions of child windows + */ + + for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) + { + if (pChild->winGravity != g) + continue; + REGION_INTERSECT(pScreen, pRegion, + &pChild->borderClip, gravitate[g]); + TraverseTree (pChild, miRecomputeExposures, (pointer)pRegion); + } + + /* + * remove the successfully copied regions of the + * window from its exposed region + */ + + if (g == pWin->bitGravity) + REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed, + &pWin->valdata->after.exposed, gravitate[g]); + if (!destClip) + destClip = gravitate[g]; + else + { + REGION_UNION(pScreen, destClip, destClip, gravitate[g]); + REGION_DESTROY(pScreen, gravitate[g]); + } + } + + REGION_DESTROY(pScreen, oldRegion); + REGION_DESTROY(pScreen, pRegion); + if (destClip) + REGION_DESTROY(pScreen, destClip); + if (bsExposed) + { + RegionPtr valExposed = NullRegion; + + if (pWin->valdata) + valExposed = &pWin->valdata->after.exposed; + (*pScreen->WindowExposures) (pWin, valExposed, bsExposed); + if (valExposed) + REGION_EMPTY(pScreen, valExposed); + REGION_DESTROY(pScreen, bsExposed); + } + if (anyMarked) + (*pScreen->HandleExposures)(pLayerWin->parent); +#ifdef DO_SAVE_UNDERS + if (dosave) + { + (*pScreen->PostChangeSaveUnder)(pLayerWin, pFirstChange); + } +#endif /* DO_SAVE_UNDERS */ + if (anyMarked && pScreen->PostValidateTree) + (*pScreen->PostValidateTree)(pLayerWin->parent, pFirstChange, + VTOther); + } + else if (bsExposed) + { + (*pScreen->WindowExposures) (pWin, NullRegion, bsExposed); + REGION_DESTROY(pScreen, bsExposed); + } + if (pWin->realized) + WindowsRestructured (); +} + +WindowPtr +miGetLayerWindow(pWin) + WindowPtr pWin; +{ + return pWin->firstChild; +} + +#ifdef SHAPE +/****** + * + * miSetShape + * The border/window shape has changed. Recompute winSize/borderSize + * and send appropriate exposure events + */ + +void +miSetShape(pWin) + register WindowPtr pWin; +{ + Bool WasViewable = (Bool)(pWin->viewable); + register ScreenPtr pScreen = pWin->drawable.pScreen; + Bool anyMarked = FALSE; + RegionPtr pOldClip = NULL, bsExposed; +#ifdef DO_SAVE_UNDERS + Bool dosave = FALSE; +#endif + WindowPtr pLayerWin; + + if (WasViewable) + { + anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin, + &pLayerWin); + if (pWin->valdata) + { + if (HasBorder (pWin)) + { + RegionPtr borderVisible; + + borderVisible = REGION_CREATE(pScreen, NullBox, 1); + REGION_SUBTRACT(pScreen, borderVisible, + &pWin->borderClip, &pWin->winSize); + pWin->valdata->before.borderVisible = borderVisible; + } + pWin->valdata->before.resized = TRUE; + } + } + + SetWinSize (pWin); + SetBorderSize (pWin); + + ResizeChildrenWinSize(pWin, 0, 0, 0, 0); + + if (WasViewable) + { + if (pWin->backStorage) + { + pOldClip = REGION_CREATE(pScreen, NullBox, 1); + REGION_COPY(pScreen, pOldClip, &pWin->clipList); + } + + anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pWin, + (WindowPtr *)NULL); + +#ifdef DO_SAVE_UNDERS + if (DO_SAVE_UNDERS(pWin)) + { + dosave = (*pScreen->ChangeSaveUnder)(pLayerWin, pLayerWin); + } +#endif /* DO_SAVE_UNDERS */ + + if (anyMarked) + (*pScreen->ValidateTree)(pLayerWin->parent, NullWindow, VTOther); + } + + if (pWin->backStorage && + ((pWin->backingStore == Always) || WasViewable)) + { + if (!WasViewable) + pOldClip = &pWin->clipList; /* a convenient empty region */ + bsExposed = (*pScreen->TranslateBackingStore) + (pWin, 0, 0, pOldClip, + pWin->drawable.x, pWin->drawable.y); +#ifdef NXAGENT_SERVER + + /* + * We got a few, rare, segfaults here after having + * started using the backing store. It may be a + * different bug but miChangeSaveUnder() calls mi- + * CheckSubSaveUnder() that, in turn, can change + * the backing store attribute of the window. This + * means that we may try to destroy the region + * even if it was not created at the beginning of + * this function as, at the time, the backing store + * was off. miCheckSubSaveUnder() appear to get a + * pointer to the parent, so maybe doesn't change + * the attribute of the window itself. This is to + * be better investigated. + */ + + if (WasViewable && pOldClip) + REGION_DESTROY(pScreen, pOldClip); +#else + if (WasViewable) + REGION_DESTROY(pScreen, pOldClip); +#endif + if (bsExposed) + { + RegionPtr valExposed = NullRegion; + + if (pWin->valdata) + valExposed = &pWin->valdata->after.exposed; + (*pScreen->WindowExposures) (pWin, valExposed, bsExposed); + if (valExposed) + REGION_EMPTY(pScreen, valExposed); + REGION_DESTROY(pScreen, bsExposed); + } + } + if (WasViewable) + { + if (anyMarked) + (*pScreen->HandleExposures)(pLayerWin->parent); +#ifdef DO_SAVE_UNDERS + if (dosave) + (*pScreen->PostChangeSaveUnder)(pLayerWin, pLayerWin); +#endif /* DO_SAVE_UNDERS */ + if (anyMarked && pScreen->PostValidateTree) + (*pScreen->PostValidateTree)(pLayerWin->parent, NullWindow, VTOther); + } + if (pWin->realized) + WindowsRestructured (); + CheckCursorConfinement(pWin); +} +#endif + +/* Keeps the same inside(!) origin */ + +void +miChangeBorderWidth(pWin, width) + register WindowPtr pWin; + unsigned int width; +{ + int oldwidth; + Bool anyMarked = FALSE; + register ScreenPtr pScreen; + Bool WasViewable = (Bool)(pWin->viewable); + Bool HadBorder; +#ifdef DO_SAVE_UNDERS + Bool dosave = FALSE; +#endif + WindowPtr pLayerWin; + + oldwidth = wBorderWidth (pWin); + if (oldwidth == width) + return; + HadBorder = HasBorder(pWin); + pScreen = pWin->drawable.pScreen; + if (WasViewable && width < oldwidth) + anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin, &pLayerWin); + + pWin->borderWidth = width; + SetBorderSize (pWin); + + if (WasViewable) + { + if (width > oldwidth) + { + anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin, + &pLayerWin); + /* + * save the old border visible region to correctly compute + * borderExposed. + */ + if (pWin->valdata && HadBorder) + { + RegionPtr borderVisible; + borderVisible = REGION_CREATE(pScreen, NULL, 1); + REGION_SUBTRACT(pScreen, borderVisible, + &pWin->borderClip, &pWin->winSize); + pWin->valdata->before.borderVisible = borderVisible; + } + } +#ifdef DO_SAVE_UNDERS + if (DO_SAVE_UNDERS(pWin)) + { + dosave = (*pScreen->ChangeSaveUnder)(pLayerWin, pWin->nextSib); + } +#endif /* DO_SAVE_UNDERS */ + + if (anyMarked) + { + (*pScreen->ValidateTree)(pLayerWin->parent, pLayerWin, VTOther); + (*pScreen->HandleExposures)(pLayerWin->parent); + } +#ifdef DO_SAVE_UNDERS + if (dosave) + (*pScreen->PostChangeSaveUnder)(pLayerWin, pWin->nextSib); +#endif /* DO_SAVE_UNDERS */ + if (anyMarked && pScreen->PostValidateTree) + (*pScreen->PostValidateTree)(pLayerWin->parent, pLayerWin, + VTOther); + } + if (pWin->realized) + WindowsRestructured (); +} + +void +miMarkUnrealizedWindow(pChild, pWin, fromConfigure) + WindowPtr pChild; + WindowPtr pWin; + Bool fromConfigure; +{ + if ((pChild != pWin) || fromConfigure) + { + REGION_EMPTY(pChild->drawable.pScreen, &pChild->clipList); + if (pChild->drawable.pScreen->ClipNotify) + (* pChild->drawable.pScreen->ClipNotify)(pChild, 0, 0); + REGION_EMPTY(pChild->drawable.pScreen, &pChild->borderClip); + } +} + +void +miSegregateChildren(WindowPtr pWin, RegionPtr pReg, int depth) +{ + ScreenPtr pScreen; + WindowPtr pChild; + + pScreen = pWin->drawable.pScreen; + + for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) + { + if (pChild->drawable.depth == depth) + REGION_UNION(pScreen, pReg, pReg, &pChild->borderClip); + + if (pChild->firstChild) + miSegregateChildren(pChild, pReg, depth); + } +} |