Re: Adding items to tables

[Richard Gipps <rgipps netspace net au>]

Hi Damon,
                 Thanks for the feedback - the workaround you provided did the trick.

Regards,
Richard.

P.S. I have compiled goocanvas 11 for windows and I just need to test the zip files (which I will do over the next couple of days) and I will email them to you.

Damon Chaplin wrote:

On Sun, 2008-09-14 at 19:56 +0100, Damon Chaplin wrote:
  

On Sun, 2008-09-14 at 20:22 +1000, Richard Gipps wrote:
    

Hi all,
          I have been working on some code which adds items to tables 
when a particular event occurs. The problem is that when I add items to 
the table using say a button push, the items are not drawn on the canvas 
until I re-size it. I have tried using  goo_canvas_update(canvas) but 
that does not seem to do the trick. Is there another function I should 
be using? I have included some sample code to put the question into 
context. Note that I have no problem adding these items when not using 
events i.e. before gtk_main() is called.
      

I can reproduce that. It looks like the items are updated properly, but
not redrawn.

A quick workaround is to force a redraw of the entire canvas:

    gdk_window_invalidate_rect (GOO_CANVAS (canvas)->canvas_window,
                                NULL, FALSE);
    

Actually this is probably a better workaround:
  gtk_widget_queue_draw (canvas);


It looks like I just forgot to request redraws of the items in the
layout code. It's a simple fix, I think.

Damon