Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 193 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/Xprint/ValTree.c b/nx-X11/programs/Xserver/Xprint/ValTree.c
new file mode 100644
index 000000000..6fa631617
--- /dev/null
+++ b/nx-X11/programs/Xserver/Xprint/ValTree.c
@@ -0,0 +1,193 @@
+/* $Xorg: ValTree.c,v 1.3 2000/08/17 19:48:06 cpqbld Exp $ */
+/*
+(c) Copyright 1996 Hewlett-Packard Company
+(c) Copyright 1996 International Business Machines Corp.
+(c) Copyright 1996 Sun Microsystems, Inc.
+(c) Copyright 1996 Novell, Inc.
+(c) Copyright 1996 Digital Equipment Corp.
+(c) Copyright 1996 Fujitsu Limited
+(c) Copyright 1996 Hitachi, Ltd.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice 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
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the names of the copyright holders shall
+not be used in advertising or otherwise to promote the sale, use or other
+dealings in this Software without prior written authorization from said
+copyright holders.
+*/
+/* $XFree86$ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include    <X11/X.h>
+#include    "scrnintstr.h"
+#include    "validate.h"
+#include    "windowstr.h"
+#include    "mi.h"
+#include    "regionstr.h"
+#include    "mivalidate.h"
+
+/*
+ * XpValidateTree - a validateTree routine which ignores overlapping
+ * top-level windows when computing the clip lists for such windows.
+ * This can be used by any driver which maintains a separate memory
+ * store for each top-level window (with its respective children).
+ * If the pParent is not the root window, then miValidateTree 
+ * is used unmodified.
+ *
+ * The strategy if pParent is the root is to save off the 
+ * current values of pParent->firstChild and pParent->lastChild,
+ * replacing both with the single child of interest. We save off
+ * pChild->prevSib and pChild->nextSib, and replace them with NullWindow.
+ * We save off pParent->clipList, and replace it with 
+ * pParent->winSize - pChild->winSize.  We then call miValidateTree
+ * to do the needed ComputeClips on the pChild's heirarchy.
+ * pParent's clipList is then recomputed based on the sizes
+ * of its children, and the saved pointers are restored.
+ * The trees associated with the siblings of pChild must be descended
+ * and cleaned of any marks (i.e. the valdata pointer freed, and set to NULL),
+ * and pParent' AfterValidate structure's exposed field must be updated.
+ */
+/*ARGSUSED*/
+int
+XpValidateTree (pParent, pChild, kind)
+    WindowPtr	  	pParent;    /* Parent to validate */
+    WindowPtr	  	pChild;     /* First child of pParent that was
+				     * affected */
+    VTKind    	  	kind;       /* What kind of configuration caused call */
+{
+    RegionRec	  	origPrntClip;  /* orig clipList for parent */
+    RegionRec	  	childClip;  /* The new borderClip for the current
+				     * child */
+    RegionRec		tmpPrntClip; /* parent clipList - child borderClip */
+    RegionRec		exposed;    /* For intermediate calculations */
+    register ScreenPtr	pScreen;
+    register WindowPtr	pWin;
+    Bool		overlap;
+    int			viewvals;
+    Bool		forward;
+
+    WindowPtr	origFirstChild, origLastChild, origPrevSib, origNextSib;
+
+    /*
+     * If we're validating something other than a top-level window,
+     * then just invoke miValidateTree.
+     */
+    if(pParent->parent != NullWindow)
+	return miValidateTree(pParent, pChild, kind);
+
+    /*
+     * If it's a stack change of top levels then it's a no-op for
+     * this scheme, so we just clean up any marks on windows and return.
+     */
+    if(kind == VTStack)
+    {
+	CleanMarks(pParent);
+	return 1;
+    }
+
+    pScreen = pParent->drawable.pScreen;
+    if (pChild == NullWindow)
+	pChild = pParent->firstChild;
+    
+    /* Save off the existing window heirarchy */
+    origFirstChild = pParent->firstChild;
+    origLastChild = pParent->lastChild;
+    origPrevSib = pChild->prevSib;
+    origNextSib = pChild->nextSib;
+    pParent->firstChild = pChild;
+    pParent->lastChild = pChild;
+    pChild->prevSib = NullWindow;
+    pChild->nextSib = NullWindow;
+
+    /*
+     * Set pParent's clipList to be its winSize minus the pChild's
+     * borderSize.
+     */
+    origPrntClip = pParent->clipList;
+    REGION_NULL(pScreen, &tmpPrntClip);
+    REGION_SUBRACT(pScreen, &tmpPrntClip, &pParent->winSize,
+		   &pChild->borderSize);
+    pParent->clipList = tmpPrntClip;
+
+    /*
+     * Call miValidateTree on the pruned tree.
+     */
+    (void) miValidateTree(pParent, pChild, kind);
+
+    /* Restore the saved heirarchy */
+    pChild->prevSib = origPrevSib;
+    pChild->nextSib = origNextSib;
+    pParent->firstChild = origFirstChild;
+    pParent->lastChild = origLastChild;
+
+    /*
+     * Compute pParent's clipList by taking its winSize and subracting
+     * the borderSize of each of its children.
+     */
+    for(pWin = pParent->firstChild, 
+	REGION_COPY(pScreen, &pParent->clipList, &pParent->winSize); 
+	pWin != NullWindow; 
+	pWin = pWin->nextSib)
+    {
+	REGION_SUBTRACT(pScreen, &pParent->clipList, &pParent->clipList, 
+			&pWin->borderSize);
+    }
+
+    /*
+     * Compute pParent's AfterValidate structure by subracting the original
+     * clipList from the newly computed clipList.
+     */
+    REGION_NULL(pScreen, &pParent->valdata->after.exposed);
+    REGION_SUBTRACT(pScreen, &pParent->valdata->after.exposed, 
+		    &pParent->clipList, &origPrntClip);
+
+    /*
+     * Remove the marks from all but pParent and pChild's heirarchy.
+     * i.e. from all of pChild's siblings and their children.
+     */
+    for(pWin = pParent->firstChild; pWin != NullWindow; pWin = pWin->nextSib)
+    {
+	WindowPtr pCurChild = pWin;
+
+	if(pCurChild == pChild)
+	    continue;
+
+        while (1)
+        {
+	    if(pCurChild->valdata)
+	    {
+		xfree(pCurChild->valdata);
+		pCurChild->valdata = (ValidatePtr)NULL;
+	    }
+
+            if (pCurChild->firstChild)
+            {
+                pCurChild = pCurChild->firstChild;
+                continue;
+            }
+            while (!pCurChild->nextSib && (pCurChild != pWin))
+                pCurChild = pCurChild->parent;
+            if (pCurChild == pWin)
+                break;
+            pCurChild = pCurChild->nextSib;
+        }
+    }
+}