Re: How to use GtkAdjustment ?

[Paolo Costabel <paolo zebradevelopment com>]

GtkTextView is a scrollable widget. You shouldn't wrap it in a viewport. 
GtkTextView does not resize itself when you add more text, so the 
viewport adjustment will always be zero. Instead, use a GtkScrollWindow 
and the scrollbars will automatically work.


Tomas Mecir wrote:

> Hiya, me again ;)
>
> Figured out some of my probs already, one still
> remains though... How do I persuade GtkAdjustment to
> get correctly hooked to a GtkTextView?
> I have that GtkTextView wrapped in a GtkViewport, and
> it seems to work correctly - selecting text with mouse
> scrolls the widget nicely.
> However, the scrollbar doesn't reflect this - it gets
> set to all zeroes, or something like that, and stays
> like that forever. Can't use it to scroll the
> window... How do I fix that?
> The relevant portion of my code follows:
>
> // make scrolling work
> GtkAdjustment *vadj;
> GtkViewport *vport;
> GtkRange *scroll_bar;
> vport = (GtkViewport *) interface_get_widget( ret,
> "output1_c" );
> scroll_bar = (GtkRange *) interface_get_widget (ret,
> "output1_scrollbar");
> vadj = gtk_viewport_get_vadjustment (vport);
> gtk_range_set_adjustment (scroll_bar, vadj);
>
> // scrolling should work from now on - but it doesn't
>
> And yes, interface_get_widget returns the correct
> pointers (changing it causes Gtk to yell at me due to
> incorrect pointer types)
>
> Awaiting your reply... ;)
>
> / Tomas
>
>
>
>                 
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