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+/***********************************************************
+
+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 $ */
+#include "X.h"
+#include "miscstruct.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, &reg, &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, &reg, &reg, &pWin->clipList);
+ if (generateExposures)
+ (*pScreen->WindowExposures)(pWin, &reg, pBSReg);
+ else if (pWin->backgroundState != None)
+ (*pScreen->PaintWindowBackground)(pWin, &reg, PW_BACKGROUND);
+ REGION_UNINIT(pScreen, &reg);
+ 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(pParent, pFirst, pRegion)
+ 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_INIT(pScreen, &SubRegion, NullBox, 0);
+ 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_INIT(pScreen, &rgn, NullBox, 1);
+ 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;
+ void (* MarkWindow)() = pWin->drawable.pScreen->MarkWindow;
+ ScreenPtr 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)
+ {
+ (* 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 && 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 = pWin->drawable.pScreen;
+ void (* WindowExposures)();
+
+ 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;
+ DDXPointRec oldpt;
+ Bool anyMarked;
+ 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 (pWin, value)
+ 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;
+ Bool anyMarked;
+ 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;
+ RegionPtr destClip; /* portions of destination already written */
+ RegionPtr oldWinClip; /* 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)
+ (*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;
+ WindowPtr pParent = pWin->parent;
+ RegionPtr pOldClip, 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);
+ if (WasViewable)
+ REGION_DESTROY(pScreen, pOldClip);
+ 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;
+{
+ WindowPtr pParent;
+ int oldwidth;
+ Bool anyMarked;
+ 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;
+ pParent = pWin->parent;
+ 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);
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-21 22:20:39 +0000