Re: Problem forcing display of text

["Gustavo J. A. M. " Carneiro <gjc inescporto pt>]

  I think that what may be happening is that you are inserting text too
frequently. GtkTextView updates itself in an idle function. If the gtk
main loop has no idle time, the text view updates will never happen.

  I suggest you update less frequently. Instead of inserting many small
chunks of text, append to a text buffer (GString). Every once in a while
(half a second, perhaps), flush the buffer into the text widget.

On Fri, 2003-01-24 at 13:23, Mickey Houck wrote:
> I'm writing an application collects inputs, then reads a lot of data. 
> As the data is being read, I have a dialog that contains a progress
> bar (showing percent complete), and a text widget to display runtime
> messages.
> 
> I'm using pthreads.  The code that reads all the data is started as a
> separate thread.  This thread (the I/O thread) is doing the
> gtk_text_buffer_insert calls to show the runtime messages.  The
> progress bar is being updated with a timeout function back in the main
> thread based on data updated in the I/O thread.  
> 
> No problem with the progress bar and I'm confident that the thread
> code is implemented correctly.
> 
> I can't seem to force the data in the text buffer to be displayed in
> the text widget as it is inserted.  It's there, I just can't see it
> right away.
> 
> Moving the mouse in and out of the window displays some text, but it
> takes a click in the text widget to get everything displayed once the
> I/O thread is done.  I don't want to force the user to do any silly
> stuff like that.
> 
> Updating the text widget from the timeout does not help - still
> requires the window focus change or click to display the text.
> 
> It seems like I could send an expose-event or something from the
> timeout function to refresh the text widget, but I can't figure out
> how to do it.
> 
> I'm kinda new to gtk.  Thanks in advance for any help.
> 
> Mickey.
> 
> 
> 
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-- 
Gustavo Joćo Alves Marques Carneiro
<gjc@inescporto.pt> <gustavo@users.sourceforge.net>