Added libXt library

1 files changed, 221 insertions, 0 deletions

diff --git a/libXt/src/EventUtil.c b/libXt/src/EventUtil.c
new file mode 100644
index 000000000..929d83dc1
--- /dev/null
+++ b/libXt/src/EventUtil.c
@@ -0,0 +1,221 @@
+/* $Xorg: EventUtil.c,v 1.4 2001/02/09 02:03:54 xorgcvs Exp $ */
+
+/********************************************************
+
+Copyright 1988 by Hewlett-Packard Company
+Copyright 1987, 1988, 1989 by Digital Equipment Corporation, Maynard, Massachusetts
+Copyright 1993 by Sun Microsystems, Inc. Mountain View, CA.
+
+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
+Hewlett-Packard, 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, 1989, 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/EventUtil.c,v 1.6 2001/12/14 19:56:13 dawes Exp $ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "IntrinsicI.h"
+#include "PassivGraI.h"
+#include "StringDefs.h"
+#include "EventI.h"
+
+static XContext 	perWidgetInputContext = 0;
+
+void _XtFreePerWidgetInput(
+    Widget 		w,
+    XtPerWidgetInput	pwi)
+{
+    LOCK_PROCESS;
+    XDeleteContext(XtDisplay(w),
+		   (Window)w,
+		   perWidgetInputContext);
+
+    XtFree((char *)pwi);
+    UNLOCK_PROCESS;
+}
+
+/*
+ * This routine gets the passive list associated with the widget
+ * from the context manager.
+ */
+XtPerWidgetInput _XtGetPerWidgetInput(
+    Widget	widget,
+    _XtBoolean	create)
+{
+    XtPerWidgetInput	pwi = NULL;
+    Display		*dpy = widget->core.screen->display;
+
+    LOCK_PROCESS;
+    if (! perWidgetInputContext)
+      perWidgetInputContext = XUniqueContext();
+
+    if (XFindContext(dpy,
+		     (Window)widget,
+		     perWidgetInputContext,
+		     (XPointer *)&pwi) &&
+	create)
+      {
+	  pwi = (XtPerWidgetInput)
+	    __XtMalloc((unsigned) sizeof(XtPerWidgetInputRec));
+
+	  pwi->focusKid = NULL;
+	  pwi->queryEventDescendant = NULL;
+	  pwi->focalPoint = XtUnrelated;
+	  pwi->keyList =
+	    pwi->ptrList = NULL;
+
+	  pwi->haveFocus =
+	      pwi->map_handler_added =
+		  pwi->realize_handler_added =
+		      pwi->active_handler_added = FALSE;
+
+	  XtAddCallback(widget, XtNdestroyCallback,
+			_XtDestroyServerGrabs, (XtPointer)pwi);
+
+	  (void) XSaveContext(dpy,
+			      (Window)widget,
+			      perWidgetInputContext,
+			      (char *) pwi);
+      }
+    UNLOCK_PROCESS;
+    return pwi;
+}
+
+
+void _XtFillAncestorList(
+    Widget	**listPtr,
+    int		*maxElemsPtr,
+    int		*numElemsPtr,
+    Widget	start,
+    Widget	breakWidget)
+{
+#define CACHESIZE 16
+    Cardinal	i;
+    Widget	w;
+    Widget	*trace = *listPtr;
+
+    /* First time in, allocate the ancestor list */
+    if (trace == NULL)
+      {
+	  trace = (Widget *) __XtMalloc(CACHESIZE * sizeof(Widget));
+	  *maxElemsPtr = CACHESIZE;
+      }
+    /* First fill in the ancestor list */
+
+    trace[0] = start;
+
+    for (i = 1, w = XtParent(start);
+	 w != NULL && !XtIsShell(trace[i-1]) && trace[i-1] != breakWidget;
+	 w = XtParent(w), i++) {
+	if (i == (Cardinal) *maxElemsPtr) {
+	    /* This should rarely happen, but if it does it'll probably
+	       happen again, so grow the ancestor list */
+	    *maxElemsPtr += CACHESIZE;
+	    trace = (Widget *) XtRealloc((char*)trace,
+					 sizeof(Widget) * (*maxElemsPtr));
+	}
+	trace[i] = w;
+    }
+    *listPtr = trace;
+    *numElemsPtr = i;
+#undef CACHESIZE
+}
+
+
+Widget _XtFindRemapWidget(
+    XEvent	*event,
+    Widget	widget,
+    EventMask	mask,
+    XtPerDisplayInput pdi)
+{
+    Widget		dspWidget = widget;
+
+    if (!pdi->traceDepth || !(widget == pdi->trace[0]))
+      {
+	  _XtFillAncestorList(&pdi->trace, &pdi->traceMax,
+			      &pdi->traceDepth, widget, NULL);
+	  pdi->focusWidget = NULL; /* invalidate the focus
+				      cache */
+      }
+    if (mask & (KeyPressMask | KeyReleaseMask))
+	  dspWidget = _XtProcessKeyboardEvent((XKeyEvent*)event, widget, pdi);
+    else if (mask &(ButtonPressMask | ButtonReleaseMask))
+	  dspWidget = _XtProcessPointerEvent((XButtonEvent*)event, widget,pdi);
+
+    return dspWidget;
+}
+
+void _XtUngrabBadGrabs(
+    XEvent	*event,
+    Widget	widget,
+    EventMask	mask,
+    XtPerDisplayInput pdi)
+{
+    XKeyEvent	* ke = (XKeyEvent *) event;
+
+    if (mask & (KeyPressMask | KeyReleaseMask))
+      {
+	  if (IsServerGrab(pdi->keyboard.grabType) &&
+	      !_XtOnGrabList(pdi->keyboard.grab.widget,
+			     pdi->grabList))
+	    XtUngrabKeyboard(widget, ke->time);
+
+      }
+    else
+      {
+	  if (IsServerGrab(pdi->pointer.grabType) &&
+	      !_XtOnGrabList(pdi->pointer.grab.widget,
+			     pdi->grabList))
+	    XtUngrabPointer(widget, ke->time);
+      }
+}