Re: [Vala] Newbie help requested for scrolling a TextView

[Manish Jain <jude obscure yandex com>]

Hi Al,


Tx for replying. As part of my teething struggles, I discovered

what I think was essentially wrong. I was filling up the view

with text += <new line read by Disk Input Stream>. And I think Vala

removes the trailing newline, so essentially my buffer always had

just one line!


Let me see if I can get my code to work now.


There is another woe that afflicts me. I am adding both widgets

(TextView - embedded in ScrolledWindow - and a vertical scale at RHS) to

a grid. At runtime, both textview and scale occupy 50% of the grid's

real-estate. Can I tell the grid to give 75% coverage to the view

and 25% to the scale, or is there some way I can size the widgets

myself from within my code?


Thanks again.

Manish Jain



On 01/25/18 16:11, Al Thomas wrote:
> > On Thursday, 25 January 2018, 01:00:05 GMT, Manish Jain 
> <jude obscure yandex com> wrote:
>
> > Despite a lot of effort to write an event handler, I still cannot get
> > the scale to tell the view to scroll. I have tried scrolling with the
> > scroll_to_iter() method, but the iterator always lands me at the top of
> > the file, whereas I want the view to move south.
>
> Have you tried moving the TextIter with something like:
> https://valadoc.org/gtk+-3.0/Gtk.TextIter.set_line.html
>
> It sounds like you want a TextIter instance for your vscale widget 
> that you can then move
> about the document and then scroll to it.
>
> It may be your almost there, just missing the last piece of the puzzle!
>
> Regards,
>
> Al