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From: gram@uctcs.uucp (Graham Wheeler)
Newsgroups: comp.windows.x
Subject: AsciiText widget problem
Keywords: Xaw, Xt, Editors, X, windows
Message-ID: <756@ucthpx.UUCP>
Date: 25 Sep 90 13:03:57 GMT
Sender: news@ucthpx.UUCP
Lines: 49

I have (yet another) problem with X. I am trying to write a simple program
to behave as a file browser/editor. I was very pleased when I read that the
AsciiText widget (Athena) supports editing. Unfortunately the only docs I
have are the MIT distribution docs, which are really references for those
who already know how to do these things. I also no longer have the source
code for the Athena widget examples.

My program is appended below. The aim is to display/edit the file specified
on the command line, or open a file "Noname.est" if none is specified. If
I run with no arguments, I get a "File or directory not found" error. Fair
enough. If I specify a file name of an existing file (with or without quotes)
I just get the file name displayed followed by a number of ^@'s. I cannot
edit this display. Although the search widget pops up when I hit Ctrl-S, I
cannot get the AsciiWidget to recognise the META key (which I presume is
ESC or Ctrl-X). Note that there are two problems described here: displaying
the file *contents*, and using META key sequences. I am running X11R4 on
a SPARCstation 1+. Any ideas, anyone? Please E-mail.

The program is:

#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include <X11/Xaw/AsciiText.h>

main(argc,argv)
int argc;
char *argv[];
{
  Widget toplevel, EdWinWidget;
  Arg wargs[10];
  int n=0; /* arg count */
  /* Initialise intrinsics and create top-level shell widget */
  toplevel = XtInitialize(argv[0],"Xpew", NULL, 0, &argc, argv);
  /* Specify the file to be displayed */
  XtSetArg(wargs[n], "type", "XawAsciiFile"); n++;
  if (argc==2) XtSetArg(wargs[n], "string", argv[1]);
  else XtSetArg(wargs[n], "string", "Noname.est");
  n++;
  /* Create the widget */
  EdWinWidget = XtCreateManagedWidget("Editor",asciiTextWidgetClass, toplevel, wargs, n);
  /* Realise the widgets, and enter event loop */
  XtRealizeWidget(toplevel);
  XtMainLoop();
}


Graham Wheeler		      |    
Dept. of Computer Science     | Internet: <gram.uctcs@f4.n494.z5.fidonet.org>
University of Cape Town       |     BANG: <...uunet!ddsw1!olsa99!uctcs!gram>