xserver git update 11/6/2010

1 files changed, 519 insertions, 526 deletions

diff --git a/xorg-server/hw/xnest/Window.c b/xorg-server/hw/xnest/Window.c
index 48c870fac..7ef3d8b96 100644
--- a/xorg-server/hw/xnest/Window.c
+++ b/xorg-server/hw/xnest/Window.c
@@ -1,526 +1,519 @@
-/*
-
-Copyright 1993 by Davor Matic
-
-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.  Davor Matic makes no representations about
-the suitability of this software for any purpose.  It is provided "as
-is" without express or implied warranty.
-
-*/
-
-#ifdef HAVE_XNEST_CONFIG_H
-#include <xnest-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xproto.h>
-#include "gcstruct.h"
-#include "window.h"
-#include "windowstr.h"
-#include "pixmapstr.h"
-#include "colormapst.h"
-#include "scrnintstr.h"
-#include "region.h"
-
-#include "mi.h"
-
-#include "Xnest.h"
-
-#include "Display.h"
-#include "Screen.h"
-#include "XNGC.h"
-#include "Drawable.h"
-#include "Color.h"
-#include "Visual.h"
-#include "Events.h"
-#include "Args.h"
-
-static int xnestWindowPrivateKeyIndex;
-DevPrivateKey xnestWindowPrivateKey = &xnestWindowPrivateKeyIndex;
-
-static int
-xnestFindWindowMatch(WindowPtr pWin, pointer ptr)
-{
-  xnestWindowMatch *wm = (xnestWindowMatch *)ptr;
-  if (wm->window == xnestWindow(pWin)) {
-    wm->pWin = pWin;
-    return WT_STOPWALKING;
-  }
-  else
-    return WT_WALKCHILDREN;
-}
-
-WindowPtr
-xnestWindowPtr(Window window)
-{
-  xnestWindowMatch wm;
-  int i;
-
-  wm.pWin = NullWindow;
-  wm.window = window;
-
-  for (i = 0; i < xnestNumScreens; i++) {
-    WalkTree(screenInfo.screens[i], xnestFindWindowMatch, (pointer) &wm);
-    if (wm.pWin) break;
-  }
-  
-  return wm.pWin;
-}
-    
-Bool
-xnestCreateWindow(WindowPtr pWin)
-{
-  unsigned long mask;
-  XSetWindowAttributes attributes;
-  Visual *visual;
-  ColormapPtr pCmap;
-
-  if (pWin->drawable.class == InputOnly) {
-    mask = 0L;
-    visual = CopyFromParent;
-  }
-  else {
-    mask = CWEventMask | CWBackingStore;
-    attributes.event_mask = ExposureMask;
-    attributes.backing_store = NotUseful;
-    
-    if (pWin->parent) {
-      if (pWin->optional && pWin->optional->visual != wVisual(pWin->parent)) {
-	visual = xnestVisualFromID(pWin->drawable.pScreen, wVisual(pWin));
-	mask |= CWColormap;
-	if (pWin->optional->colormap) {
-	  dixLookupResourceByType((pointer *)&pCmap, wColormap(pWin),
-				  RT_COLORMAP, serverClient, DixUseAccess);
-	  attributes.colormap = xnestColormap(pCmap);
-	}
-	else
-	  attributes.colormap = xnestDefaultVisualColormap(visual);
-      }
-      else 
-	visual = CopyFromParent;
-    }
-    else { /* root windows have their own colormaps at creation time */
-      visual = xnestVisualFromID(pWin->drawable.pScreen, wVisual(pWin));      
-      dixLookupResourceByType((pointer *)&pCmap, wColormap(pWin),
-			      RT_COLORMAP, serverClient, DixUseAccess);
-      mask |= CWColormap;
-      attributes.colormap = xnestColormap(pCmap);
-    }
-  }
-  
-  xnestWindowPriv(pWin)->window = XCreateWindow(xnestDisplay,
-						xnestWindowParent(pWin),
-						pWin->origin.x - 
-						wBorderWidth(pWin),
-						pWin->origin.y - 
-						wBorderWidth(pWin),
-						pWin->drawable.width,
-						pWin->drawable.height,
-						pWin->borderWidth,
-						pWin->drawable.depth, 
-						pWin->drawable.class,
-						visual,
-						mask, &attributes);
-  xnestWindowPriv(pWin)->parent = xnestWindowParent(pWin);
-  xnestWindowPriv(pWin)->x = pWin->origin.x - wBorderWidth(pWin);
-  xnestWindowPriv(pWin)->y = pWin->origin.y - wBorderWidth(pWin);
-  xnestWindowPriv(pWin)->width = pWin->drawable.width;
-  xnestWindowPriv(pWin)->height = pWin->drawable.height;
-  xnestWindowPriv(pWin)->border_width = pWin->borderWidth;
-  xnestWindowPriv(pWin)->sibling_above = None;
-  if (pWin->nextSib)
-    xnestWindowPriv(pWin->nextSib)->sibling_above = xnestWindow(pWin);
-  xnestWindowPriv(pWin)->bounding_shape = 
-    REGION_CREATE(pWin->drawable.pScreen, NULL, 1);
-  xnestWindowPriv(pWin)->clip_shape = 
-    REGION_CREATE(pWin->drawable.pScreen, NULL, 1);
-
-  if (!pWin->parent) /* only the root window will have the right colormap */
-    xnestSetInstalledColormapWindows(pWin->drawable.pScreen);
-  
-  return True;
-}
-
-Bool
-xnestDestroyWindow(WindowPtr pWin)
-{
-  if (pWin->nextSib)
-    xnestWindowPriv(pWin->nextSib)->sibling_above = 
-      xnestWindowPriv(pWin)->sibling_above;
-  REGION_DESTROY(pWin->drawable.pScreen, 
-				xnestWindowPriv(pWin)->bounding_shape);
-  REGION_DESTROY(pWin->drawable.pScreen, 
-				xnestWindowPriv(pWin)->clip_shape);
-  XDestroyWindow(xnestDisplay, xnestWindow(pWin));
-  xnestWindowPriv(pWin)->window = None;
-
-  if (pWin->optional && pWin->optional->colormap && pWin->parent)
-    xnestSetInstalledColormapWindows(pWin->drawable.pScreen);
-
-  return True;
-}
-
-Bool
-xnestPositionWindow(WindowPtr pWin, int x, int y)
-{
-  xnestConfigureWindow(pWin, 
-		       CWParent |
-		       CWX | CWY | 
-		       CWWidth | CWHeight | 
-		       CWBorderWidth);
-  
-  return True;
-}
-
-void
-xnestConfigureWindow(WindowPtr pWin, unsigned int mask)
-{
-  unsigned int valuemask;
-  XWindowChanges values;
-
-  if (mask & CWParent &&
-      xnestWindowPriv(pWin)->parent != xnestWindowParent(pWin)) {
-    XReparentWindow(xnestDisplay, xnestWindow(pWin), 
-		    xnestWindowParent(pWin), 
-		    pWin->origin.x - wBorderWidth(pWin),
-		    pWin->origin.y - wBorderWidth(pWin));
-    xnestWindowPriv(pWin)->parent = xnestWindowParent(pWin);
-    xnestWindowPriv(pWin)->x = pWin->origin.x - wBorderWidth(pWin);
-    xnestWindowPriv(pWin)->y = pWin->origin.y - wBorderWidth(pWin);
-    xnestWindowPriv(pWin)->sibling_above = None;
-    if (pWin->nextSib)
-      xnestWindowPriv(pWin->nextSib)->sibling_above = xnestWindow(pWin);
-  }
-  
-  valuemask = 0;
-  
-  if (mask & CWX &&
-      xnestWindowPriv(pWin)->x != pWin->origin.x - wBorderWidth(pWin)) {
-    valuemask |= CWX;
-    values.x =
-      xnestWindowPriv(pWin)->x = 
-	pWin->origin.x - wBorderWidth(pWin);
-  }
-
-  if (mask & CWY &&
-      xnestWindowPriv(pWin)->y != pWin->origin.y - wBorderWidth(pWin)) {
-    valuemask |= CWY;
-    values.y =
-      xnestWindowPriv(pWin)->y = 
-	pWin->origin.y - wBorderWidth(pWin);
-  }
-
-  if (mask & CWWidth &&
-      xnestWindowPriv(pWin)->width != pWin->drawable.width) {
-    valuemask |= CWWidth;
-    values.width = 
-      xnestWindowPriv(pWin)->width = 
-	pWin->drawable.width;
-  }
-  
-  if (mask & CWHeight &&
-      xnestWindowPriv(pWin)->height != pWin->drawable.height) {
-    valuemask |= CWHeight;
-    values.height = 
-      xnestWindowPriv(pWin)->height = 
-	pWin->drawable.height;
-  }
-  
-  if (mask & CWBorderWidth &&
-      xnestWindowPriv(pWin)->border_width != pWin->borderWidth) {
-    valuemask |= CWBorderWidth;
-    values.border_width = 
-      xnestWindowPriv(pWin)->border_width = 
-	pWin->borderWidth;
-  }
- 
-  if (valuemask)
-    XConfigureWindow(xnestDisplay, xnestWindow(pWin), valuemask, &values);  
-  
-  if (mask & CWStackingOrder &&
-      xnestWindowPriv(pWin)->sibling_above != xnestWindowSiblingAbove(pWin)) {
-    WindowPtr pSib;
-    
-    /* find the top sibling */
-    for (pSib = pWin; pSib->prevSib != NullWindow; pSib = pSib->prevSib);
-    
-    /* the top sibling */
-    valuemask = CWStackMode;
-    values.stack_mode = Above;
-    XConfigureWindow(xnestDisplay, xnestWindow(pSib), valuemask, &values); 
-    xnestWindowPriv(pSib)->sibling_above = None;
-
-    /* the rest of siblings */
-    for (pSib = pSib->nextSib; pSib != NullWindow; pSib = pSib->nextSib) {
-      valuemask = CWSibling | CWStackMode;
-      values.sibling = xnestWindowSiblingAbove(pSib);
-      values.stack_mode = Below;
-      XConfigureWindow(xnestDisplay, xnestWindow(pSib), valuemask, &values);
-      xnestWindowPriv(pSib)->sibling_above = xnestWindowSiblingAbove(pSib);
-    }
-  }
-}
-
-Bool
-xnestChangeWindowAttributes(WindowPtr pWin, unsigned long mask)
-{
-  XSetWindowAttributes attributes;
-  
-  if (mask & CWBackPixmap)
-    switch (pWin->backgroundState) {
-    case None:
-      attributes.background_pixmap = None;
-      break;
-      
-    case ParentRelative:
-      attributes.background_pixmap = ParentRelative;
-      break;
-      
-    case BackgroundPixmap:
-      attributes.background_pixmap = xnestPixmap(pWin->background.pixmap);
-      break;
-
-    case BackgroundPixel:
-      mask &= ~CWBackPixmap;  
-      break;
-    }
-
-  if (mask & CWBackPixel) {
-    if (pWin->backgroundState == BackgroundPixel)
-      attributes.background_pixel = xnestPixel(pWin->background.pixel);
-    else
-      mask &= ~CWBackPixel;
-  }
-  
-  if (mask & CWBorderPixmap) {
-    if (pWin->borderIsPixel)
-      mask &= ~CWBorderPixmap;
-    else
-      attributes.border_pixmap = xnestPixmap(pWin->border.pixmap);
-  }
-  
-  if (mask & CWBorderPixel) {
-    if (pWin->borderIsPixel)
-      attributes.border_pixel = xnestPixel(pWin->border.pixel);
-    else
-      mask &= ~CWBorderPixel;
-  }
-  
-  if (mask & CWBitGravity) 
-    attributes.bit_gravity = pWin->bitGravity;
-  
-  if (mask & CWWinGravity) /* dix does this for us */
-    mask &= ~CWWinGravity;
-
-  if (mask & CWBackingStore) /* this is really not useful */
-    mask &= ~CWBackingStore;
-
-  if (mask & CWBackingPlanes) /* this is really not useful */
-    mask &= ~CWBackingPlanes;
-
-  if (mask & CWBackingPixel) /* this is really not useful */ 
-    mask &= ~CWBackingPixel;
-
-  if (mask & CWOverrideRedirect)
-    attributes.override_redirect = pWin->overrideRedirect;
-
-  if (mask & CWSaveUnder) /* this is really not useful */
-    mask &= ~CWSaveUnder;
-
-  if (mask & CWEventMask) /* events are handled elsewhere */
-    mask &= ~CWEventMask;
-
-  if (mask & CWDontPropagate) /* events are handled elsewhere */
-    mask &= ~CWDontPropagate; 
-
-  if (mask & CWColormap) {
-    ColormapPtr pCmap;
-    
-    dixLookupResourceByType((pointer *)&pCmap, wColormap(pWin), RT_COLORMAP,
-			    serverClient, DixUseAccess);
-
-    attributes.colormap = xnestColormap(pCmap);
-
-    xnestSetInstalledColormapWindows(pWin->drawable.pScreen);
-  }
-
-  if (mask & CWCursor) /* this is handeled in cursor code */
-    mask &= ~CWCursor;
-
-  if (mask)
-    XChangeWindowAttributes(xnestDisplay, xnestWindow(pWin),
-			    mask, &attributes);
-  
-  return True;
-}	  
-
-Bool
-xnestRealizeWindow(WindowPtr pWin)
-{
-  xnestConfigureWindow(pWin, CWStackingOrder);
-  xnestShapeWindow(pWin);
-  XMapWindow(xnestDisplay, xnestWindow(pWin));
-
-  return True;
-}
-
-Bool
-xnestUnrealizeWindow(WindowPtr pWin)
-{
-  XUnmapWindow(xnestDisplay, xnestWindow(pWin));
-
-  return True;
-}
-
-void
-xnestCopyWindow(WindowPtr pWin, xPoint oldOrigin, RegionPtr oldRegion)
-{
-}
-
-void
-xnestClipNotify(WindowPtr pWin, int dx, int dy)
-{
-  xnestConfigureWindow(pWin, CWStackingOrder); 
-  xnestShapeWindow(pWin);
-}
-
-static Bool
-xnestWindowExposurePredicate(Display *display, XEvent *event, XPointer ptr)
-{
-  return (event->type == Expose && event->xexpose.window == *(Window *)ptr);
-}
-
-void
-xnestWindowExposures(WindowPtr pWin, RegionPtr pRgn, RegionPtr other_exposed)
-{
-  XEvent event;
-  Window window;
-  BoxRec Box;
-  
-  XSync(xnestDisplay, False);
-  
-  window = xnestWindow(pWin);
-  
-  while (XCheckIfEvent(xnestDisplay, &event, 
-		       xnestWindowExposurePredicate, (char *)&window)) {
-    
-    Box.x1 = pWin->drawable.x + wBorderWidth(pWin) + event.xexpose.x;
-    Box.y1 = pWin->drawable.y + wBorderWidth(pWin) + event.xexpose.y;
-    Box.x2 = Box.x1 + event.xexpose.width;
-    Box.y2 = Box.y1 + event.xexpose.height;
-	
-    event.xexpose.type = ProcessedExpose;
-	
-    if (RECT_IN_REGION(pWin->drawable.pScreen, pRgn, &Box) != rgnIN)
-      XPutBackEvent(xnestDisplay, &event);
-  }
-  
-  miWindowExposures(pWin, pRgn, other_exposed);
-}
-
-void
-xnestSetShape(WindowPtr pWin)
-{
-  xnestShapeWindow(pWin);
-  miSetShape(pWin);
-}
-
-static Bool
-xnestRegionEqual(RegionPtr pReg1, RegionPtr pReg2)
-{
-  BoxPtr pBox1, pBox2;
-  unsigned int n1, n2;
-
-  if (pReg1 == pReg2) return True;
-
-  if (pReg1 == NullRegion || pReg2 == NullRegion) return False;
-
-  pBox1 = REGION_RECTS(pReg1);
-  n1 = REGION_NUM_RECTS(pReg1);
-
-  pBox2 = REGION_RECTS(pReg2);
-  n2 = REGION_NUM_RECTS(pReg2);
-
-  if (n1 != n2) return False;
-
-  if (pBox1 == pBox2) return True;
-
-  if (memcmp(pBox1, pBox2, n1 * sizeof(BoxRec))) return False;
-
-  return True;
-}
-
-void
-xnestShapeWindow(WindowPtr pWin)
-{
-  Region reg;
-  BoxPtr pBox;
-  XRectangle rect;
-  int i;
-
-  if (!xnestRegionEqual(xnestWindowPriv(pWin)->bounding_shape,
-			wBoundingShape(pWin))) {
-    
-    if (wBoundingShape(pWin)) {
-      REGION_COPY(pWin->drawable.pScreen, 
-		xnestWindowPriv(pWin)->bounding_shape, wBoundingShape(pWin));
-      
-      reg = XCreateRegion();
-      pBox = REGION_RECTS(xnestWindowPriv(pWin)->bounding_shape);
-      for (i = 0; 
-	   i < REGION_NUM_RECTS(xnestWindowPriv(pWin)->bounding_shape);
-	   i++) {
-        rect.x = pBox[i].x1;
-        rect.y = pBox[i].y1;
-        rect.width = pBox[i].x2 - pBox[i].x1;
-        rect.height = pBox[i].y2 - pBox[i].y1;
-        XUnionRectWithRegion(&rect, reg, reg);
-      }
-      XShapeCombineRegion(xnestDisplay, xnestWindow(pWin),
-			  ShapeBounding, 0, 0, reg, ShapeSet);
-      XDestroyRegion(reg);
-    }
-    else {
-      REGION_EMPTY(pWin->drawable.pScreen, 
-				xnestWindowPriv(pWin)->bounding_shape);
-      
-      XShapeCombineMask(xnestDisplay, xnestWindow(pWin),
-			ShapeBounding, 0, 0, None, ShapeSet);
-    }
-  }
-  
-  if (!xnestRegionEqual(xnestWindowPriv(pWin)->clip_shape,
-			wClipShape(pWin))) {
-    
-    if (wClipShape(pWin)) {
-      REGION_COPY(pWin->drawable.pScreen, 
-			xnestWindowPriv(pWin)->clip_shape, wClipShape(pWin));
-      
-      reg = XCreateRegion();
-      pBox = REGION_RECTS(xnestWindowPriv(pWin)->clip_shape);
-      for (i = 0; 
-	   i < REGION_NUM_RECTS(xnestWindowPriv(pWin)->clip_shape);
-	   i++) {
-        rect.x = pBox[i].x1;
-        rect.y = pBox[i].y1;
-        rect.width = pBox[i].x2 - pBox[i].x1;
-        rect.height = pBox[i].y2 - pBox[i].y1;
-        XUnionRectWithRegion(&rect, reg, reg);
-      }
-      XShapeCombineRegion(xnestDisplay, xnestWindow(pWin),
-			  ShapeClip, 0, 0, reg, ShapeSet);
-      XDestroyRegion(reg);
-    }
-    else {
-      REGION_EMPTY(pWin->drawable.pScreen, 
-				     xnestWindowPriv(pWin)->clip_shape);
-      
-      XShapeCombineMask(xnestDisplay, xnestWindow(pWin),
-			ShapeClip, 0, 0, None, ShapeSet);
-    }
-  }
-}
+/*

+

+Copyright 1993 by Davor Matic

+

+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.  Davor Matic makes no representations about

+the suitability of this software for any purpose.  It is provided "as

+is" without express or implied warranty.

+

+*/

+

+#ifdef HAVE_XNEST_CONFIG_H

+#include <xnest-config.h>

+#endif

+

+#include <X11/X.h>

+#include <X11/Xproto.h>

+#include "gcstruct.h"

+#include "window.h"

+#include "windowstr.h"

+#include "pixmapstr.h"

+#include "colormapst.h"

+#include "scrnintstr.h"

+#include "region.h"

+

+#include "mi.h"

+

+#include "Xnest.h"

+

+#include "Display.h"

+#include "Screen.h"

+#include "XNGC.h"

+#include "Drawable.h"

+#include "Color.h"

+#include "Visual.h"

+#include "Events.h"

+#include "Args.h"

+

+DevPrivateKeyRec xnestWindowPrivateKeyRec;

+

+static int

+xnestFindWindowMatch(WindowPtr pWin, pointer ptr)

+{

+  xnestWindowMatch *wm = (xnestWindowMatch *)ptr;

+  if (wm->window == xnestWindow(pWin)) {

+    wm->pWin = pWin;

+    return WT_STOPWALKING;

+  }

+  else

+    return WT_WALKCHILDREN;

+}

+

+WindowPtr

+xnestWindowPtr(Window window)

+{

+  xnestWindowMatch wm;

+  int i;

+

+  wm.pWin = NullWindow;

+  wm.window = window;

+

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

+    WalkTree(screenInfo.screens[i], xnestFindWindowMatch, (pointer) &wm);

+    if (wm.pWin) break;

+  }

+  

+  return wm.pWin;

+}

+    

+Bool

+xnestCreateWindow(WindowPtr pWin)

+{

+  unsigned long mask;

+  XSetWindowAttributes attributes;

+  Visual *visual;

+  ColormapPtr pCmap;

+

+  if (pWin->drawable.class == InputOnly) {

+    mask = 0L;

+    visual = CopyFromParent;

+  }

+  else {

+    mask = CWEventMask | CWBackingStore;

+    attributes.event_mask = ExposureMask;

+    attributes.backing_store = NotUseful;

+    

+    if (pWin->parent) {

+      if (pWin->optional && pWin->optional->visual != wVisual(pWin->parent)) {

+	visual = xnestVisualFromID(pWin->drawable.pScreen, wVisual(pWin));

+	mask |= CWColormap;

+	if (pWin->optional->colormap) {

+	  dixLookupResourceByType((pointer *)&pCmap, wColormap(pWin),

+				  RT_COLORMAP, serverClient, DixUseAccess);

+	  attributes.colormap = xnestColormap(pCmap);

+	}

+	else

+	  attributes.colormap = xnestDefaultVisualColormap(visual);

+      }

+      else 

+	visual = CopyFromParent;

+    }

+    else { /* root windows have their own colormaps at creation time */

+      visual = xnestVisualFromID(pWin->drawable.pScreen, wVisual(pWin));      

+      dixLookupResourceByType((pointer *)&pCmap, wColormap(pWin),

+			      RT_COLORMAP, serverClient, DixUseAccess);

+      mask |= CWColormap;

+      attributes.colormap = xnestColormap(pCmap);

+    }

+  }

+  

+  xnestWindowPriv(pWin)->window = XCreateWindow(xnestDisplay,

+						xnestWindowParent(pWin),

+						pWin->origin.x - 

+						wBorderWidth(pWin),

+						pWin->origin.y - 

+						wBorderWidth(pWin),

+						pWin->drawable.width,

+						pWin->drawable.height,

+						pWin->borderWidth,

+						pWin->drawable.depth, 

+						pWin->drawable.class,

+						visual,

+						mask, &attributes);

+  xnestWindowPriv(pWin)->parent = xnestWindowParent(pWin);

+  xnestWindowPriv(pWin)->x = pWin->origin.x - wBorderWidth(pWin);

+  xnestWindowPriv(pWin)->y = pWin->origin.y - wBorderWidth(pWin);

+  xnestWindowPriv(pWin)->width = pWin->drawable.width;

+  xnestWindowPriv(pWin)->height = pWin->drawable.height;

+  xnestWindowPriv(pWin)->border_width = pWin->borderWidth;

+  xnestWindowPriv(pWin)->sibling_above = None;

+  if (pWin->nextSib)

+    xnestWindowPriv(pWin->nextSib)->sibling_above = xnestWindow(pWin);

+  xnestWindowPriv(pWin)->bounding_shape = 

+    RegionCreate(NULL, 1);

+  xnestWindowPriv(pWin)->clip_shape = 

+    RegionCreate(NULL, 1);

+

+  if (!pWin->parent) /* only the root window will have the right colormap */

+    xnestSetInstalledColormapWindows(pWin->drawable.pScreen);

+  

+  return True;

+}

+

+Bool

+xnestDestroyWindow(WindowPtr pWin)

+{

+  if (pWin->nextSib)

+    xnestWindowPriv(pWin->nextSib)->sibling_above = 

+      xnestWindowPriv(pWin)->sibling_above;

+  RegionDestroy(xnestWindowPriv(pWin)->bounding_shape);

+  RegionDestroy(xnestWindowPriv(pWin)->clip_shape);

+  XDestroyWindow(xnestDisplay, xnestWindow(pWin));

+  xnestWindowPriv(pWin)->window = None;

+

+  if (pWin->optional && pWin->optional->colormap && pWin->parent)

+    xnestSetInstalledColormapWindows(pWin->drawable.pScreen);

+

+  return True;

+}

+

+Bool

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

+{

+  xnestConfigureWindow(pWin, 

+		       CWParent |

+		       CWX | CWY | 

+		       CWWidth | CWHeight | 

+		       CWBorderWidth);

+  

+  return True;

+}

+

+void

+xnestConfigureWindow(WindowPtr pWin, unsigned int mask)

+{

+  unsigned int valuemask;

+  XWindowChanges values;

+

+  if (mask & CWParent &&

+      xnestWindowPriv(pWin)->parent != xnestWindowParent(pWin)) {

+    XReparentWindow(xnestDisplay, xnestWindow(pWin), 

+		    xnestWindowParent(pWin), 

+		    pWin->origin.x - wBorderWidth(pWin),

+		    pWin->origin.y - wBorderWidth(pWin));

+    xnestWindowPriv(pWin)->parent = xnestWindowParent(pWin);

+    xnestWindowPriv(pWin)->x = pWin->origin.x - wBorderWidth(pWin);

+    xnestWindowPriv(pWin)->y = pWin->origin.y - wBorderWidth(pWin);

+    xnestWindowPriv(pWin)->sibling_above = None;

+    if (pWin->nextSib)

+      xnestWindowPriv(pWin->nextSib)->sibling_above = xnestWindow(pWin);

+  }

+  

+  valuemask = 0;

+  

+  if (mask & CWX &&

+      xnestWindowPriv(pWin)->x != pWin->origin.x - wBorderWidth(pWin)) {

+    valuemask |= CWX;

+    values.x =

+      xnestWindowPriv(pWin)->x = 

+	pWin->origin.x - wBorderWidth(pWin);

+  }

+

+  if (mask & CWY &&

+      xnestWindowPriv(pWin)->y != pWin->origin.y - wBorderWidth(pWin)) {

+    valuemask |= CWY;

+    values.y =

+      xnestWindowPriv(pWin)->y = 

+	pWin->origin.y - wBorderWidth(pWin);

+  }

+

+  if (mask & CWWidth &&

+      xnestWindowPriv(pWin)->width != pWin->drawable.width) {

+    valuemask |= CWWidth;

+    values.width = 

+      xnestWindowPriv(pWin)->width = 

+	pWin->drawable.width;

+  }

+  

+  if (mask & CWHeight &&

+      xnestWindowPriv(pWin)->height != pWin->drawable.height) {

+    valuemask |= CWHeight;

+    values.height = 

+      xnestWindowPriv(pWin)->height = 

+	pWin->drawable.height;

+  }

+  

+  if (mask & CWBorderWidth &&

+      xnestWindowPriv(pWin)->border_width != pWin->borderWidth) {

+    valuemask |= CWBorderWidth;

+    values.border_width = 

+      xnestWindowPriv(pWin)->border_width = 

+	pWin->borderWidth;

+  }

+ 

+  if (valuemask)

+    XConfigureWindow(xnestDisplay, xnestWindow(pWin), valuemask, &values);  

+  

+  if (mask & CWStackingOrder &&

+      xnestWindowPriv(pWin)->sibling_above != xnestWindowSiblingAbove(pWin)) {

+    WindowPtr pSib;

+    

+    /* find the top sibling */

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

+    

+    /* the top sibling */

+    valuemask = CWStackMode;

+    values.stack_mode = Above;

+    XConfigureWindow(xnestDisplay, xnestWindow(pSib), valuemask, &values); 

+    xnestWindowPriv(pSib)->sibling_above = None;

+

+    /* the rest of siblings */

+    for (pSib = pSib->nextSib; pSib != NullWindow; pSib = pSib->nextSib) {

+      valuemask = CWSibling | CWStackMode;

+      values.sibling = xnestWindowSiblingAbove(pSib);

+      values.stack_mode = Below;

+      XConfigureWindow(xnestDisplay, xnestWindow(pSib), valuemask, &values);

+      xnestWindowPriv(pSib)->sibling_above = xnestWindowSiblingAbove(pSib);

+    }

+  }

+}

+

+Bool

+xnestChangeWindowAttributes(WindowPtr pWin, unsigned long mask)

+{

+  XSetWindowAttributes attributes;

+  

+  if (mask & CWBackPixmap)

+    switch (pWin->backgroundState) {

+    case None:

+      attributes.background_pixmap = None;

+      break;

+      

+    case ParentRelative:

+      attributes.background_pixmap = ParentRelative;

+      break;

+      

+    case BackgroundPixmap:

+      attributes.background_pixmap = xnestPixmap(pWin->background.pixmap);

+      break;

+

+    case BackgroundPixel:

+      mask &= ~CWBackPixmap;  

+      break;

+    }

+

+  if (mask & CWBackPixel) {

+    if (pWin->backgroundState == BackgroundPixel)

+      attributes.background_pixel = xnestPixel(pWin->background.pixel);

+    else

+      mask &= ~CWBackPixel;

+  }

+  

+  if (mask & CWBorderPixmap) {

+    if (pWin->borderIsPixel)

+      mask &= ~CWBorderPixmap;

+    else

+      attributes.border_pixmap = xnestPixmap(pWin->border.pixmap);

+  }

+  

+  if (mask & CWBorderPixel) {

+    if (pWin->borderIsPixel)

+      attributes.border_pixel = xnestPixel(pWin->border.pixel);

+    else

+      mask &= ~CWBorderPixel;

+  }

+  

+  if (mask & CWBitGravity) 

+    attributes.bit_gravity = pWin->bitGravity;

+  

+  if (mask & CWWinGravity) /* dix does this for us */

+    mask &= ~CWWinGravity;

+

+  if (mask & CWBackingStore) /* this is really not useful */

+    mask &= ~CWBackingStore;

+

+  if (mask & CWBackingPlanes) /* this is really not useful */

+    mask &= ~CWBackingPlanes;

+

+  if (mask & CWBackingPixel) /* this is really not useful */ 

+    mask &= ~CWBackingPixel;

+

+  if (mask & CWOverrideRedirect)

+    attributes.override_redirect = pWin->overrideRedirect;

+

+  if (mask & CWSaveUnder) /* this is really not useful */

+    mask &= ~CWSaveUnder;

+

+  if (mask & CWEventMask) /* events are handled elsewhere */

+    mask &= ~CWEventMask;

+

+  if (mask & CWDontPropagate) /* events are handled elsewhere */

+    mask &= ~CWDontPropagate; 

+

+  if (mask & CWColormap) {

+    ColormapPtr pCmap;

+    

+    dixLookupResourceByType((pointer *)&pCmap, wColormap(pWin), RT_COLORMAP,

+			    serverClient, DixUseAccess);

+

+    attributes.colormap = xnestColormap(pCmap);

+

+    xnestSetInstalledColormapWindows(pWin->drawable.pScreen);

+  }

+

+  if (mask & CWCursor) /* this is handeled in cursor code */

+    mask &= ~CWCursor;

+

+  if (mask)

+    XChangeWindowAttributes(xnestDisplay, xnestWindow(pWin),

+			    mask, &attributes);

+  

+  return True;

+}	  

+

+Bool

+xnestRealizeWindow(WindowPtr pWin)

+{

+  xnestConfigureWindow(pWin, CWStackingOrder);

+  xnestShapeWindow(pWin);

+  XMapWindow(xnestDisplay, xnestWindow(pWin));

+

+  return True;

+}

+

+Bool

+xnestUnrealizeWindow(WindowPtr pWin)

+{

+  XUnmapWindow(xnestDisplay, xnestWindow(pWin));

+

+  return True;

+}

+

+void

+xnestCopyWindow(WindowPtr pWin, xPoint oldOrigin, RegionPtr oldRegion)

+{

+}

+

+void

+xnestClipNotify(WindowPtr pWin, int dx, int dy)

+{

+  xnestConfigureWindow(pWin, CWStackingOrder); 

+  xnestShapeWindow(pWin);

+}

+

+static Bool

+xnestWindowExposurePredicate(Display *display, XEvent *event, XPointer ptr)

+{

+  return (event->type == Expose && event->xexpose.window == *(Window *)ptr);

+}

+

+void

+xnestWindowExposures(WindowPtr pWin, RegionPtr pRgn, RegionPtr other_exposed)

+{

+  XEvent event;

+  Window window;

+  BoxRec Box;

+  

+  XSync(xnestDisplay, False);

+  

+  window = xnestWindow(pWin);

+  

+  while (XCheckIfEvent(xnestDisplay, &event, 

+		       xnestWindowExposurePredicate, (char *)&window)) {

+    

+    Box.x1 = pWin->drawable.x + wBorderWidth(pWin) + event.xexpose.x;

+    Box.y1 = pWin->drawable.y + wBorderWidth(pWin) + event.xexpose.y;

+    Box.x2 = Box.x1 + event.xexpose.width;

+    Box.y2 = Box.y1 + event.xexpose.height;

+	

+    event.xexpose.type = ProcessedExpose;

+	

+    if (RegionContainsRect(pRgn, &Box) != rgnIN)

+      XPutBackEvent(xnestDisplay, &event);

+  }

+  

+  miWindowExposures(pWin, pRgn, other_exposed);

+}

+

+void

+xnestSetShape(WindowPtr pWin, int kind)

+{

+  xnestShapeWindow(pWin);

+  miSetShape(pWin, kind);

+}

+

+static Bool

+xnestRegionEqual(RegionPtr pReg1, RegionPtr pReg2)

+{

+  BoxPtr pBox1, pBox2;

+  unsigned int n1, n2;

+

+  if (pReg1 == pReg2) return True;

+

+  if (pReg1 == NullRegion || pReg2 == NullRegion) return False;

+

+  pBox1 = RegionRects(pReg1);

+  n1 = RegionNumRects(pReg1);

+

+  pBox2 = RegionRects(pReg2);

+  n2 = RegionNumRects(pReg2);

+

+  if (n1 != n2) return False;

+

+  if (pBox1 == pBox2) return True;

+

+  if (memcmp(pBox1, pBox2, n1 * sizeof(BoxRec))) return False;

+

+  return True;

+}

+

+void

+xnestShapeWindow(WindowPtr pWin)

+{

+  Region reg;

+  BoxPtr pBox;

+  XRectangle rect;

+  int i;

+

+  if (!xnestRegionEqual(xnestWindowPriv(pWin)->bounding_shape,

+			wBoundingShape(pWin))) {

+    

+    if (wBoundingShape(pWin)) {

+      RegionCopy(xnestWindowPriv(pWin)->bounding_shape, wBoundingShape(pWin));

+      

+      reg = XCreateRegion();

+      pBox = RegionRects(xnestWindowPriv(pWin)->bounding_shape);

+      for (i = 0; 

+	   i < RegionNumRects(xnestWindowPriv(pWin)->bounding_shape);

+	   i++) {

+        rect.x = pBox[i].x1;

+        rect.y = pBox[i].y1;

+        rect.width = pBox[i].x2 - pBox[i].x1;

+        rect.height = pBox[i].y2 - pBox[i].y1;

+        XUnionRectWithRegion(&rect, reg, reg);

+      }

+      XShapeCombineRegion(xnestDisplay, xnestWindow(pWin),

+			  ShapeBounding, 0, 0, reg, ShapeSet);

+      XDestroyRegion(reg);

+    }

+    else {

+      RegionEmpty(xnestWindowPriv(pWin)->bounding_shape);

+      

+      XShapeCombineMask(xnestDisplay, xnestWindow(pWin),

+			ShapeBounding, 0, 0, None, ShapeSet);

+    }

+  }

+  

+  if (!xnestRegionEqual(xnestWindowPriv(pWin)->clip_shape,

+			wClipShape(pWin))) {

+    

+    if (wClipShape(pWin)) {

+      RegionCopy(xnestWindowPriv(pWin)->clip_shape, wClipShape(pWin));

+      

+      reg = XCreateRegion();

+      pBox = RegionRects(xnestWindowPriv(pWin)->clip_shape);

+      for (i = 0; 

+	   i < RegionNumRects(xnestWindowPriv(pWin)->clip_shape);

+	   i++) {

+        rect.x = pBox[i].x1;

+        rect.y = pBox[i].y1;

+        rect.width = pBox[i].x2 - pBox[i].x1;

+        rect.height = pBox[i].y2 - pBox[i].y1;

+        XUnionRectWithRegion(&rect, reg, reg);

+      }

+      XShapeCombineRegion(xnestDisplay, xnestWindow(pWin),

+			  ShapeClip, 0, 0, reg, ShapeSet);

+      XDestroyRegion(reg);

+    }

+    else {

+      RegionEmpty(xnestWindowPriv(pWin)->clip_shape);

+      

+      XShapeCombineMask(xnestDisplay, xnestWindow(pWin),

+			ShapeClip, 0, 0, None, ShapeSet);

+    }

+  }

+}