brp@dino.berkeley.edu (Bruce Raoul Parnas) (02/06/91)
this is probably easy to do, but i am having a great deal of trouble trying to implement it. i would like to output information to the user (much as one would do with printf statements) and have it displayed in a widget, any widget. the Athena text widget is much more than i need. how does one write a string of text to a widget, and continue to write strings on successive lines as they become appropriate? thanx, bruce (brp@bandit.berkeley.edu)
gildea@expo.lcs.mit.EDU (Stephen Gildea) (02/06/91)
From: brp@dino.berkeley.edu (Bruce Raoul Parnas)
i would like to output information to the user (much as
one would do with printf statements) and have it displayed in a widget,
any widget. the Athena text widget is much more than i need.
Perhaps the Label widget is what you want. You can use XtSetValues to
update the text displayed. And as of R4, you can display multiple
lines of text.
However, think carefully about whether the Text widget isn't what you
really want. If you use Label, your users won't be able to cut text
out of your window. If you're going to keep the information on the
screen for very long, that is not very social...
< Stephen
MIT X Consortiummorreale@bierstadt.scd.ucar.EDU (Peter Morreale) (02/06/91)
In article <1991Feb6.015649.28798@agate.berkeley.edu> you write: > > this is probably easy to do, but i am having a great deal of trouble trying >to implement it. i would like to output information to the user (much as >one would do with printf statements) and have it displayed in a widget, >any widget. the Athena text widget is much more than i need. how does one >write a string of text to a widget, and continue to write strings on >successive lines as they become appropriate? > >thanx, >bruce >(brp@bandit.berkeley.edu) Sounds like you actually have two requests here. One for a simple widget to display messages, and another for a widget for appending text. What I use for simple one line informative messages is a label widget. It is intended for output strings only (no editing of the string) and I get to have the string auto-centered. To set the label: XtSetArg(arg, XtNlabel, "string"); XtSetValues( <widget>, arg, 1); You can also "clear" the widget by setting the string to a null string: XtSetArg(arg, XtNlabel, ""); For the second, still use the text widget, but check out the routines: XawTextSourceRead(), XawTextSourceReplace(). These functions allow you to read and replace (or append) portions of the text buffer. I haven't used these functions directly, so I cannot send any code samples... Hope this helps, -PWM -- ------------------------------------------------------------------ Peter W. Morreale email: morreale@ncar.ucar.edu Nat'l Center for Atmos Research voice: (303) 497-1293 Scientific Computing Division Consulting Office ------------------------------------------------------------------