1 files changed, 555 insertions, 0 deletions

diff --git a/hw/xnest/Window.c b/hw/xnest/Window.c
new file mode 100644
index 000000000..e345b49d1
--- /dev/null
+++ b/hw/xnest/Window.c
@@ -0,0 +1,555 @@
+/* $Xorg: Window.c,v 1.3 2000/08/17 19:53:28 cpqbld Exp $ */
+/*
+
+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.
+
+*/
+#include "X.h"
+#include "Xproto.h"
+#include "gcstruct.h"
+#include "window.h"
+#include "windowstr.h"
+#include "pixmapstr.h"
+#include "colormapst.h"
+#include "scrnintstr.h"
+#include "region.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"
+
+int xnestWindowPrivateIndex;
+
+static int xnestFindWindowMatch(pWin, ptr)
+     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 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(pWin)
+     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) {
+	  pCmap = (ColormapPtr)LookupIDByType(wColormap(pWin), RT_COLORMAP);
+	  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));      
+      pCmap = (ColormapPtr)LookupIDByType(wColormap(pWin), RT_COLORMAP);
+      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);
+#ifdef SHAPE
+  xnestWindowPriv(pWin)->bounding_shape = 
+    REGION_CREATE(pWin->drawable.pScreen, NULL, 1);
+  xnestWindowPriv(pWin)->clip_shape = 
+    REGION_CREATE(pWin->drawable.pScreen, NULL, 1);
+#endif /* SHAPE */
+
+  if (!pWin->parent) /* only the root window will have the right colormap */
+    xnestSetInstalledColormapWindows(pWin->drawable.pScreen);
+  
+  return True;
+}
+
+Bool xnestDestroyWindow(pWin)
+     WindowPtr pWin;
+{
+  if (pWin->nextSib)
+    xnestWindowPriv(pWin->nextSib)->sibling_above = 
+      xnestWindowPriv(pWin)->sibling_above;
+#ifdef SHAPE
+  REGION_DESTROY(pWin->drawable.pScreen, 
+				xnestWindowPriv(pWin)->bounding_shape);
+  REGION_DESTROY(pWin->drawable.pScreen, 
+				xnestWindowPriv(pWin)->clip_shape);
+#endif
+  XDestroyWindow(xnestDisplay, xnestWindow(pWin));
+  xnestWindowPriv(pWin)->window = None;
+
+  if (pWin->optional && pWin->optional->colormap && pWin->parent)
+    xnestSetInstalledColormapWindows(pWin->drawable.pScreen);
+
+  return True;
+}
+
+Bool xnestPositionWindow(pWin, x, y)
+     WindowPtr pWin;
+     int x, y;
+{
+  xnestConfigureWindow(pWin, 
+		       CWParent |
+		       CWX | CWY | 
+		       CWWidth | CWHeight | 
+		       CWBorderWidth);
+  
+  return True;
+}
+
+void xnestConfigureWindow(pWin, mask)
+     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(pWin, mask)
+     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;
+    
+    pCmap = (ColormapPtr)LookupIDByType(wColormap(pWin), RT_COLORMAP);
+
+    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(pWin)
+     WindowPtr pWin;
+{
+  xnestConfigureWindow(pWin, CWStackingOrder);
+#ifdef SHAPE
+  xnestShapeWindow(pWin);
+#endif /* SHAPE */
+  XMapWindow(xnestDisplay, xnestWindow(pWin));
+
+  return True;
+}
+
+Bool xnestUnrealizeWindow(pWin)
+    WindowPtr pWin;
+{
+  XUnmapWindow(xnestDisplay, xnestWindow(pWin));
+
+  return True;
+}
+
+void xnestPaintWindowBackground(pWin, pRegion, what)
+     WindowPtr pWin;
+     RegionPtr pRegion;
+     int what;
+{
+  int i;
+  BoxPtr pBox;
+
+  xnestConfigureWindow(pWin, CWWidth | CWHeight);
+
+  pBox = REGION_RECTS(pRegion);
+  for (i = 0; i < REGION_NUM_RECTS(pRegion); i++)
+    XClearArea(xnestDisplay, xnestWindow(pWin),
+	       pBox[i].x1 - pWin->drawable.x,
+	       pBox[i].y1 - pWin->drawable.y,
+	       pBox[i].x2 - pBox[i].x1, 
+	       pBox[i].y2 - pBox[i].y1,
+	       False);
+}
+
+void xnestPaintWindowBorder(pWin, pRegion, what)
+     WindowPtr pWin;
+     RegionPtr pRegion;
+     int what;
+{
+  xnestConfigureWindow(pWin, CWBorderWidth);
+}
+
+void xnestCopyWindow(pWin, oldOrigin, oldRegion)
+     WindowPtr pWin;
+     xPoint oldOrigin;
+     RegionPtr oldRegion;
+{
+}
+
+void xnestClipNotify(pWin, dx, dy)
+     WindowPtr pWin;
+     int dx, dy;
+{
+  xnestConfigureWindow(pWin, CWStackingOrder); 
+#ifdef SHAPE
+  xnestShapeWindow(pWin);
+#endif /* SHAPE */
+}
+
+static Bool xnestWindowExposurePredicate(display, event, ptr)
+     Display *display;
+     XEvent *event;
+     XPointer ptr;
+{
+  return (event->type == Expose && event->xexpose.window == *(Window *)ptr);
+}
+
+void xnestWindowExposures(pWin, pRgn, other_exposed)
+     WindowPtr pWin;
+     RegionPtr pRgn, 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);
+}
+
+#ifdef SHAPE
+static Bool xnestRegionEqual(pReg1, pReg2)
+     RegionPtr pReg1, 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(pWin)
+     WindowPtr pWin;
+{
+  Region reg;
+  BoxPtr pBox;
+  XRectangle rect;
+  int i;
+  Bool overlap;
+
+  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);
+    }
+  }
+}
+#endif /* SHAPE */