Added libXt library

1 files changed, 296 insertions, 0 deletions

diff --git a/libXt/src/Object.c b/libXt/src/Object.c
new file mode 100644
index 000000000..777fd68ae
--- /dev/null
+++ b/libXt/src/Object.c
@@ -0,0 +1,296 @@
+/* $Xorg: Object.c,v 1.4 2001/02/09 02:03:56 xorgcvs Exp $ */
+
+/***********************************************************
+Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts,
+Copyright 1993 by Sun Microsystems, Inc. Mountain View, CA.
+
+                        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 names of Digital or Sun 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.
+
+SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO  THIS  SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
+NESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SUN BE  LI-
+ABLE  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.
+
+******************************************************************/
+
+/*
+
+Copyright 1987, 1988, 1994, 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.
+
+*/
+/* $XFree86: xc/lib/Xt/Object.c,v 1.5 2001/01/17 19:43:06 dawes Exp $ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "IntrinsicI.h"
+#include "StringDefs.h"
+
+static XtResource resources[] = {
+        {XtNdestroyCallback, XtCCallback, XtRCallback,sizeof(XtPointer),
+         XtOffsetOf(ObjectRec,object.destroy_callbacks),
+	 XtRCallback, (XtPointer)NULL}
+    };
+
+static void ObjectClassPartInitialize(WidgetClass);
+static Boolean ObjectSetValues(Widget, Widget, Widget, ArgList, Cardinal *);
+static void ObjectDestroy(Widget);
+
+externaldef(objectclassrec) ObjectClassRec objectClassRec = {
+  {
+    /* superclass	  */	NULL,
+    /* class_name	  */	"Object",
+    /* widget_size	  */	sizeof(ObjectRec),
+    /* class_initialize   */    NULL,
+    /* class_part_initialize*/	ObjectClassPartInitialize,
+    /* class_inited       */	FALSE,
+    /* initialize	  */	NULL,
+    /* initialize_hook    */	NULL,
+    /* pad                */    NULL,
+    /* pad		  */	NULL,
+    /* pad       	  */	0,
+    /* resources	  */	resources,
+    /* num_resources	  */    XtNumber(resources),
+    /* xrm_class	  */	NULLQUARK,
+    /* pad                */    FALSE,
+    /* pad                */    FALSE,
+    /* pad                */    FALSE,
+    /* pad                */    FALSE,
+    /* destroy		  */	ObjectDestroy,
+    /* pad		  */	NULL,
+    /* pad		  */	NULL,
+    /* set_values	  */	ObjectSetValues,
+    /* set_values_hook    */	NULL,
+    /* pad                */    NULL,
+    /* get_values_hook    */	NULL,
+    /* pad                */    NULL,
+    /* version		  */	XtVersion,
+    /* callback_offsets   */    NULL,
+    /* pad                */    NULL,
+    /* pad                */    NULL,
+    /* pad                */    NULL,
+    /* extension	    */  NULL
+}
+};
+
+externaldef(objectClass) WidgetClass objectClass
+                          = (WidgetClass)&objectClassRec;
+
+/*
+ * Start of object routines.
+ */
+
+
+static void ConstructCallbackOffsets(
+    WidgetClass widgetClass)
+{
+    static XrmQuark QCallback = NULLQUARK;
+    register int i;
+    register int tableSize;
+    register CallbackTable newTable;
+    register CallbackTable superTable;
+    register XrmResourceList resourceList;
+    ObjectClass objectClass = (ObjectClass)widgetClass;
+
+    /*
+      This function builds an array of pointers to the resource
+      structures which describe the callbacks for this widget class.
+      This array is special in that the 0th entry is the number of
+      callback pointers.
+     */
+
+    if (QCallback == NULLQUARK)
+	QCallback = XrmPermStringToQuark(XtRCallback);
+
+    if (objectClass->object_class.superclass != NULL) {
+	superTable = (CallbackTable)
+	    ((ObjectClass) objectClass->object_class.superclass)->
+		object_class.callback_private;
+	tableSize = (int)(long) superTable[0];
+    } else {
+	superTable = (CallbackTable) NULL;
+	tableSize = 0;
+    }
+
+    /* Count the number of callbacks */
+    resourceList = (XrmResourceList) objectClass->object_class.resources;
+    for (i = objectClass->object_class.num_resources; --i >= 0; resourceList++)
+	if (resourceList->xrm_type == QCallback)
+	    tableSize++;
+
+    /*
+     * Allocate and load the table.  Make sure that the new callback
+     * offsets occur in the table ahead of the superclass callback
+     * offsets so that resource overrides work.
+     */
+    newTable = (CallbackTable)
+	__XtMalloc(sizeof(XrmResource *) * (tableSize + 1));
+
+    newTable[0] = (XrmResource *)(long) tableSize;
+
+    if (superTable)
+	tableSize -= (int)(long) superTable[0];
+    resourceList = (XrmResourceList) objectClass->object_class.resources;
+    for (i=1; tableSize > 0; resourceList++)
+	if (resourceList->xrm_type == QCallback) {
+	    newTable[i++] = resourceList;
+	    tableSize--;
+	}
+
+    if (superTable)
+	for (tableSize = (int)(long) *superTable++;
+	    --tableSize >= 0; superTable++)
+	    newTable[i++] = *superTable;
+
+    objectClass->object_class.callback_private = (XtPointer) newTable;
+}
+
+static void InheritObjectExtensionMethods(
+    WidgetClass widget_class)
+{
+    ObjectClass oc = (ObjectClass) widget_class;
+    ObjectClassExtension ext, super_ext = NULL;
+
+    ext = (ObjectClassExtension)
+	XtGetClassExtension(widget_class,
+		    XtOffsetOf(ObjectClassRec, object_class.extension),
+			    NULLQUARK, XtObjectExtensionVersion,
+			    sizeof(ObjectClassExtensionRec));
+
+    if (oc->object_class.superclass)
+	super_ext = (ObjectClassExtension)
+	    XtGetClassExtension(oc->object_class.superclass,
+			XtOffsetOf(ObjectClassRec, object_class.extension),
+				NULLQUARK, XtObjectExtensionVersion,
+				sizeof(ObjectClassExtensionRec));
+    LOCK_PROCESS;
+    if (ext) {
+	if (ext->allocate == XtInheritAllocate)
+	    ext->allocate = (super_ext ? super_ext->allocate : NULL);
+	if (ext->deallocate == XtInheritDeallocate)
+	    ext->deallocate = (super_ext ? super_ext->deallocate : NULL);
+    } else if (super_ext) {
+	/* Be careful to inherit only what is appropriate */
+	ext = (ObjectClassExtension)
+	    __XtCalloc(1, sizeof(ObjectClassExtensionRec));
+	ext->next_extension = oc->object_class.extension;
+	ext->record_type = NULLQUARK;
+	ext->version = XtObjectExtensionVersion;
+	ext->record_size = sizeof(ObjectClassExtensionRec);
+	ext->allocate = super_ext->allocate;
+	ext->deallocate = super_ext->deallocate;
+	oc->object_class.extension = (XtPointer) ext;
+    }
+    UNLOCK_PROCESS;
+}
+
+static void ObjectClassPartInitialize(
+    register WidgetClass wc)
+{
+   ObjectClass oc = (ObjectClass)wc;
+
+   oc->object_class.xrm_class =
+       XrmPermStringToQuark(oc->object_class.class_name);
+
+   if (oc->object_class.resources)
+       _XtCompileResourceList(oc->object_class.resources,
+			      oc->object_class.num_resources);
+
+   ConstructCallbackOffsets(wc);
+   _XtResourceDependencies(wc);
+   InheritObjectExtensionMethods(wc);
+}
+
+
+/*ARGSUSED*/
+static Boolean ObjectSetValues(
+    Widget	old,
+    Widget	request,
+    Widget	widget,
+    ArgList	args,
+    Cardinal *	num_args)
+{
+    register CallbackTable offsets;
+    register int i;
+    register InternalCallbackList *ol, *nl;
+
+    LOCK_PROCESS;
+    /* Compile any callback lists into internal form */
+    offsets = (CallbackTable) XtClass(widget)->core_class.callback_private;
+
+    for (i= (int)(long) *(offsets++); --i >= 0; offsets++) {
+	ol = (InternalCallbackList *)
+	    ((char *) old - (*offsets)->xrm_offset - 1);
+	nl = (InternalCallbackList *)
+	    ((char *) widget - (*offsets)->xrm_offset - 1);
+	if (*ol != *nl) {
+	    if (*ol != NULL)
+		XtFree((char *) *ol);
+	    if (*nl != NULL)
+		*nl = _XtCompileCallbackList((XtCallbackList) *nl);
+	}
+    }
+    UNLOCK_PROCESS;
+    return False;
+}
+
+
+static void ObjectDestroy (
+    register Widget    widget)
+{
+    register CallbackTable offsets;
+    register int i;
+    register InternalCallbackList cl;
+
+    /* Remove all callbacks associated with widget */
+    LOCK_PROCESS;
+    offsets = (CallbackTable)
+	widget->core.widget_class->core_class.callback_private;
+
+    for (i = (int)(long) *(offsets++); --i >= 0; offsets++) {
+	cl = *(InternalCallbackList *)
+	    ((char *) widget - (*offsets)->xrm_offset - 1);
+	if (cl) XtFree((char *) cl);
+    }
+    UNLOCK_PROCESS;
+} /* ObjectDestroy */