Re: gtk_spin_button_set_adjustment without triggering value-changed signal

[Chris Moller <moller mollerware com>]

I've used constructs along the lines of:

   GtkWidget *spin_button = gtk_spin_button_new_with_range (...);
   gulong spin_handler = g_signal_connect (...);

   // whatever

   g_signal_handler_block (spin_button, spin_handler);
   gtk_spin_button_set_value (spin_button, ...);
   g_signal_handler_unblock (spin_button, spin_handler);




On 02/06/17 15:14, Anthony Ruth wrote:
> Hello,
>
> I have a bunch of spin buttons with the "value-changed" signal connected:
>
>         g_signal_connect_swapped(spinbutton, "value-changed", G_CALLBACK
> (run),NULL);
>
> When I load a file, I want to set sane values for the spin buttons and I do
> this by calling gtk_spin_button_set_adjustment.
>
>
> gboolean load()
> {
>          //Do stuff with file chooser
>          gtk_spin_button_set_adjustment(spinbutton1,gtk_adjustment_new (0,
> 0, T_max, 1, 10, 0.0));
> gtk_spin_button_set_adjustment(spinbutton2,gtk_adjustment_new (T_max, 0,
> T_max, 1, 10, 0.0));
>           run();
>           return TRUE;
> }
> The problem is that when gtk_spin_button_set_adjustment is called it
> immediately triggers the signal. So for instance after I call set
> adjustment on spinbutton1 it goes and triggers the "run" function, even
> before setting the adjustment on spinbutton2. This triggers the function
> "run" with insane values. I tried using change-value instead of
> value-changed, but then the signal does not trigger even when I manually
> adjust the spinbutton. How can I prevent gtk_spin_button_set_adjustment
> from triggering the value-changed event? I only want the event to trigger
> if the user changes the value of the spin button?
>
>
> thanks,
> -Anthony
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