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Re: RichText scrolling problem [message #25364 is a reply to message #25363]

Fri, 19 February 2010 07:14

javelin
Messages: 3
Registered: November 2009

Junior Member

Hello Sergey,

Thanks for the suggestion but the scollbar and scroller instances of RichTextView are private and so can't be accessed. Anyway, I think I found the solution. I found out that if you get the difference of ScrollBar::Get() and ScrollBar::GetTotal() (both exposed respectively as RichTextView::GetSb() and RichTextView::GetSbTotal()), you get a certain magic number which means that you're scrolled to the very bottom of the whole text. I don't know how to get this number so I just did a sort of hack to get it:

int sb = output_.GetSb(), tsb = output_.GetSbTotal();

output_ <<= ~output + qtf;

if (!sb && !tsb) { //Both are still zero if view has nothing.
    _output.ScrollEnd();
    _sbConst = _output_.GetSbTotal() - _output_.GetSb(); //_sbConst is a member var initialized here to contain the magic number
} else {
    ASSERT(_sbConst > 0);
    if (tsb - sb != _sbConst) _output_.SetSb(sb);
    else _output_.ScrollEnd();
}

Thanks to all the people behind U++ for such an awesome platform!

Mark

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