Re: Scrolled Window Question...

Ok - not sure if this was the problem in the first place :) ...(My First GTK answer - be gentle) I commented out the // $output_display = &new GtkText(); in the ping function as there appears no reason to recreate the GtkText() that already exists... sent the $output_display to the ping function.. $ping_button->connect_object('clicked', 'ping', $scrolled_window, $ip, $ping_number,$output_display); ...... function ping($scrolled_window, $ip_address, $ping_count,$output_display) and it worked fine for me apart from a very flickery redraw Was that the problem or have I missed the point (very possible) Regards, Simon Wheeler firepages ----- Original Message ----- From: "phpgtk at bc90021.net" <phpgtk@bc90021.net> To: <php-gtk-general@lists.php.net> Sent: Tuesday, March 26, 2002 1:09 PM Subject: [PHP-GTK] Scrolled Window Question... > Hi all, > > I'm pretty new to PHP-GTK, and reasonably new to programming in general. > (I've used PHP for some web stuff, but never tried apps programming > before.) > > I have a program with a table, and the last thing I attach to my table > is a scrolled window, for output from a ping function. (Just a straight > exec of system ping.) I have the ping in a separate function that gets > called when the user clicks a button. What I'd like it to do is to > update the scrolled window in that second function, but no matter what I > try, I can't get it to work. > > Here's a quick pseudo-code example: > > <?php > > function ping (scrolled_window, ip, num) > { > //ip and num are gtkentries > > do ping here, get output > output_display is a gtktext > > for loop > output_display-> insert output > > output_scrolled_window = scrolled_window; > output_scrolled_window->hide(); > output_scrolled_window->add(output_display) > output_scrolled_window->show(); > } > > > function createtable(notebook) > { > create label > create gtkentry (ip) > create label > create gtkentry (num) > create gtkbutton > > this notebook = notebook > > create gtkscrolledwindow > scrolled_window->set_reallocate_redraws(TRUE) > > table->attach(label) > table->attach(gtkentry) > table->attach(label) > table->attach(gtkentry) > table->attach(button) > table->attach(scrolled_window) > > button->connect_object (clicked, ping, scrolled_window, ip, num) > > this notebook = notebook; > return this notebook; > } > > function main() > { > create new gtknotebook > //add stuff to notebook... > > createtable(notebook); > } > > main(); > Gtk::main(); > ?> > > Basically, no matter what I do, I can't get the scrolled window to > update with the information. I've tried the following: > > 1) I have tried passing in the scrolled window, and trying to get it to > redraw in the ping function. > 2) I have tried passing the whole table to the ping function, to get it > to redraw. > 3) I have tried using a GtkCList instead of a GtkText with no avail. > 4) I have tried using queue_draw(), queue_resize(), and hide() and show(). > 5) I have tried using unmap(). > > I know that the output is there, because if I echo it, it prints to the > terminal I run the program from. > > Here's the results of what I tried: > > 1) Sometimes, the program will echo the results to the terminal, and > the scrollbar will get smaller, like something is in the scrolled > window, but nothing is visible. Other times, I get the error message > "Gtk-CRITICAL **: file gtkscrolledwindow.c: line 899 > (gtk_scrolled_window_add): assertion 'bin->child == NULL' failed." That > makes me think it's a bug. > > 2) If I pass in the whole table, the same thing happens as in number 1. > > 3) Nothing happens in the window. (The output is still echoed to the > terminal.) > > 4) Nothing happens in the window. (The output is still echoed to the > terminal.) > > 5) The scrolled window disappears, which means that the unmap() is > working, but trying to get another one with the results to appear hasn't > worked. > > I have also tried many combinations of the above. However, I can't see > that I'm doing anything wrong. (That, of course, should be the first > hint that I am. [;)] ) Basically, I want to pass in a scrolled window, > get some output, and redraw it, and nothing I do seems to be able to > make that happen. > > The full source code (as it is so far) is available at > http://phpgtk.bc90021.net . > > Thanks in advance! > > Tom >