--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/extw-Xt.c	Mon Aug 13 08:45:50 2007 +0200
@@ -0,0 +1,243 @@
+/* Common code between client and shell widgets -- Xt only.
+   Copyright (C) 1993, 1994 Sun Microsystems, Inc.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with this library; if not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+/* Synched up with: Not in FSF. */
+
+/* Written by Ben Wing, September 1993. */
+
+#ifdef emacs
+
+#include <config.h>
+
+#ifndef EXTERNAL_WIDGET
+ERROR!  This ought not be getting compiled if EXTERNAL_WIDGET is undefined
+#endif
+
+void fatal (CONST char *fmt, ...);
+#else /* not emacs */
+static void fatal (char *msg);
+#endif
+
+#include <X11/Intrinsic.h>
+#include <X11/IntrinsicP.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "extw-Xt.h"
+
+/* Yeah, that's portable!
+
+   Why the hell didn't the Xt people just export this function
+   for real? */
+
+#if (XT_REVISION > 5)
+int _XtWaitForSomething(
+    XtAppContext app,
+    _XtBoolean ignoreEvents,
+    _XtBoolean ignoreTimers,
+    _XtBoolean ignoreInputs,
+    _XtBoolean ignoreSignals,
+    _XtBoolean block,
+#ifdef XTHREADS
+    _XtBoolean drop_lock,
+#endif
+    unsigned long *howlong);
+
+# ifndef XTHREADS
+#  define _XtwaitForSomething(timers,inputs,events,block,howlong,appCtx) \
+          _XtWaitForSomething(appCtx,events,timers,inputs,0,block,howlong)
+# else
+#  define _XtwaitForSomething(timers,inputs,events,block,howlong,appCtx) \
+          _XtWaitForSomething(appCtx,events,timers,inputs,0,block,1,howlong)
+# endif
+#else
+int _XtwaitForSomething(
+        Boolean ignoreTimers,
+        Boolean ignoreInputs,
+        Boolean ignoreEvents,
+        Boolean block,
+        unsigned long *howlong,
+        XtAppContext app
+        );
+#endif
+
+#ifdef DEBUG_WIDGET
+
+static int geom_masks[] = {
+  CWX, CWY, CWWidth, CWHeight, CWBorderWidth, CWSibling, CWStackMode,
+  XtCWQueryOnly };
+static char *geom_mask_strings[] = {
+  "CWX", "CWY", "CWWidth", "CWHeight", "CWBorderWidth",
+  "CWSibling", "CWStackMode", "XtCWQueryOnly" };
+static int stack_modes[] = {
+  Below, TopIf, BottomIf, Opposite, XtSMDontChange };
+static char *stack_mode_strings[] = {
+  "Below", "TopIf", "BottomIf", "Opposite", "XtSMDontChange" };
+
+static void
+print_geometry_structure(XtWidgetGeometry *xwg)
+{
+  int num = sizeof(geom_masks)/sizeof(int);
+  int i;
+  
+  printf ("  masks:");
+  for (i=0; i<num; i++)
+    if (xwg->request_mode & geom_masks[i])
+      printf (" %s", geom_mask_strings[i]);
+  printf ("\n");
+  printf ("  x:%d y:%d\n", xwg->x, xwg->y);
+  printf ("  width:%d height:%d border_width:%d\n", xwg->width,
+	  xwg->height, xwg->border_width);
+  printf ("  sibling: %x\n", xwg->sibling);
+  printf ("  stack_mode: ");
+  for (i=0, num=sizeof(stack_modes)/sizeof(int); i<num; i++)
+    if (xwg->stack_mode == stack_modes[i]) {
+      printf ("%s", stack_mode_strings[i]);
+      break;
+    }
+  printf ("\n");
+}
+
+static void
+print_geometry_result (XtGeometryResult res)
+{
+  printf ("result: %s\n",
+	  res == XtGeometryYes ? "XtGeometryYes" :
+	  res == XtGeometryNo ? "XtGeometryNo" :
+	  res == XtGeometryAlmost ? "XtGeometryAlmost" :
+	  res == XtGeometryDone ? "XtGeometryDone" :
+	  "unknown");
+}
+
+#endif
+
+#ifndef emacs
+
+static void
+fatal (char *msg)
+{
+  fprintf (stderr, "%s", msg);
+  exit (1);
+}
+
+#endif
+
+/* put a geometry specification in the specified property on the window
+   of the specified widget, and send a notification message to tell the
+   client-side widget about this. */
+
+void
+extw_send_geometry_value(Display *display, Window win, Atom property,
+			 en_extw_notify type, XtWidgetGeometry *xwg,
+			 long data0)
+{
+  if (xwg != NULL)
+    XChangeProperty(display, win, property,
+		    a_EXTW_WIDGET_GEOMETRY, 32, PropModeReplace,
+		    (unsigned char *) xwg, sizeof(*xwg)/sizeof(int));
+  extw_send_notify_3(display, win, type, data0, 0, 0);
+}
+
+/* get the geometry specification stored in the specified property of the
+   specified widget's window. */
+
+void
+extw_get_geometry_value(Display *display, Window win, Atom property,
+			XtWidgetGeometry *xwg)
+{
+  Atom dummy;
+  int format;
+  unsigned long nitems, bytes_after;
+  unsigned char *prop;
+  
+  if (XGetWindowProperty(display, win, property, 0,
+			 sizeof(*xwg)/4, False, a_EXTW_WIDGET_GEOMETRY,
+			 &dummy, &format, &nitems, &bytes_after,
+			 &prop) != Success)
+    goto error;
+  if (format != 8*sizeof(int) || bytes_after) {
+    XFree((char *) prop);
+    goto error;
+  }
+  *xwg = * (XtWidgetGeometry *) prop;
+  return;
+
+ error:
+  fatal("Unable to retrieve property for widget-geometry");
+#if 0
+  XtAppErrorMsg(XtWidgetToApplicationContext((Widget)w),
+		"invalidProperty","get_geometry_value",XtCXtToolkitError,
+		"Unable to retrieve property for widget-geometry",
+		(String *)NULL, (Cardinal *)NULL);
+#endif
+}
+
+typedef struct {
+	Widget w;
+	unsigned long request_num;
+	en_extw_notify type;
+} QueryStruct;
+
+/* check if an event is of the sort we're looking for */
+
+static Bool
+isMine(Display *dpy, XEvent *event, char *arg)
+{
+	QueryStruct *q = (QueryStruct *) arg;
+	Widget w = q->w;
+	
+	if ( (dpy != XtDisplay(w)) || (event->xany.window != XtWindow(w)) ) {
+	    return FALSE;
+	}
+	if (event->xany.serial >= q->request_num) {
+	  if (event->type == ClientMessage &&
+	      event->xclient.message_type == a_EXTW_NOTIFY &&
+	      event->xclient.data.l[0] == 1 - extw_which_side &&
+	      event->xclient.data.l[1] == q->type)
+	    return TRUE;
+	}
+	return FALSE;
+}
+
+/* wait for a ClientMessage of the specified type from the other widget, or
+   time-out.  isMine() determines whether an event matches.  Culled from
+   Shell.c. */
+
+Bool
+extw_wait_for_response(Widget w, XEvent *event, unsigned long request_num,
+		       en_extw_notify type, unsigned long timeout)
+{
+	XtAppContext app = XtWidgetToApplicationContext(w);
+	QueryStruct q;
+
+	XFlush(XtDisplay(w));
+	q.w = w;
+	q.request_num = request_num;
+	q.type = type;
+	
+	for(;;) {
+ 	    /*
+ 	     * look for match event
+ 	     */
+	    if (XCheckIfEvent( XtDisplay(w), event, isMine, (char*)&q))
+	        return TRUE;
+	    if (_XtwaitForSomething(TRUE, TRUE, FALSE, TRUE, &timeout, app)
+		!= -1) continue;
+	    if (timeout == 0)
+		return FALSE;
+	}
+}